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دور بعض اجناس الساينو بكتريا في التحلل الحيوي لبعض المركبات النفطية

Author name: محمود خلف صالح الجبوري

Supervisor name: علي صالح حسين الجبوري | اياد محمد علي فاضل العبيدي

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

Abstract: تناولت الدراسة عزل وتشخيص ثلاثة اجناس من السيانوبكتريا من بيئات التربة والمياه العذبة في محاولة لمعرفة دور هذه الاحياء في عملية التحلل الحيوي للمركبات الهيدروكاربونية وهذه الاجناس هيNostoc sp. , Anabaena sp. ,Microcyst sp. واستخدم نوعان من المركبات الهيدروكاربونية هي نفط كركوك الخام وزيت الغاز.بينت النتائج ان لجميع عزلات السيانوبكتريا المختبرة القدرة على استحلاب واسع للمركبات الهيدروكاربونية في النسب 2%,1%,0.5% في العزلات الحاوية على الحويصلة المغايرة ، بينما كانت النسب 1%,0.5% هي اكثر استحلابا في الجنس Microcyst sp. غير الحاوي على الحويصلة . في حين لم تكن العزلات ذات قدرة عالية على الاستحلاب في التركيز5% . وقد اظهرت التحاليل المجراة باستخدام جهاز طيف الاشعة تحت الحمراء تغيرا واضحا في تركيب هذه المركبات النفطية.كما تناولت الدراسة تاثير هذه المركبات في بعض الفعاليات الفسلجية للسيانوبكتريا مثل كمية الكلوروفيل(A) وبعض التغيرات المظهرية والخلوية في السيانوبكتريا مثل تكرار الحويصلات المغايرة ، وقد بينت النتائج ان المركبات النفطية ادت الى اختزال كبير في نسبة الكلوروفيل (A) حيث كان التناسب عكسيا بين نسبة الكلوروفيل وتركيز المركب الهيدروكاربوني . كما ادت المركبات الهيدروكاربونية الى زيادة كبيرة في عدد الحويصلات المغايرة ، وان النسب 1%,0.5% من هذه المركبات كانت الاكثر تاثيرا في زيادة عدد الحويصلات .كما تناولـت الدراسة اجراء اختبار البقائية للـسيانوبكتـريا في التراكيــز 80,60,40,20 ) % ) من النفط الخام وزيت الغاز وقد لوحظ ان بقائيـة الاجناس في زيت الغاز كانت اعلى منها في النفط الخام مما يدل على ان تاثير زيت الغاز كان اقل من تاثير النفط الخام .

دراسة بكتريولوجية لاخماج المسالك البولية للنساء الحوامل والمصابات بارتفاع ضغط الدم وداء السكري في منطقة تكريت == Bacteriological Study of Urinary Tract Infections Among Pregnant, Hypertensive, And Diabetic Women In Tikrit Region

Author name: اسراء عز الدين ابراهيم

Supervisor name: عبد الكريم فتاح عمر

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

Abstract: النساء المتزوجات والحوامل والنساء المصابات بداء السكري وضغط الدم المرتفع ومدى مقاومتها للمضادات الحيوية لقد اشتملت الدراسة على 411 عينة ادرار من المريضات المراجعات لمستشفى تكريت التعليمي و100 عينة ادرار كمجموعة ضابطة للفترة من تشرين الثاني2008 ولغاية ايلو | This study aimed to isolate and identify the bacterial causative agents of urinary tract infections among married, pregnant, diabetic and hypertensive women and to determine the susceptibility of isolated bacteria to different antibiotics. The study included 411 urine samples for women attended to Tikrit Teaching Hospital, besides 100 urine samples used as a control group. The study carried out for the period from November 2008 to September 2009.E. coli was the most isolated bacteria at the rate of 31.8 % from married women followed by Staphylococcus saprophyticus 18.18 % and Staphylococcus aureus 15.90%. In the pregnant women, S. saprophyticus was the most isolated bacteria 48.10 % followed by E. coli 20.25 % and S. aureus 12.65 %, and in the diabetic women, S. saprophyticus was the common isolated bacteria 32.07 % followed by E. coli 28.30 % and S. epidermidis 15.09 %. In the hypertensive women, S. saprophyticus 30.35% was the common isolated bacteria followed by E. coli 25.0% and S. aureus 19.64 %. In the case of diabetic pregnant women, and in the hypertensive pregnants S. saprophyticus was the most isolated bacteria, (80 % and 75 % respectively), while E. coli 44.4% was the common isolated bacteria among the diabetic hypertensive women. Out of all isolates, S. saprophyticus 35.13 % came in the first rank followed by E. coli 26.64% and S. aureus 12.74% while Klebsiella oxytoca and Serratia odorifera (0.38% for each of them) were the lowest isolates. Urinary tract infection was common among urban patients 57.49%.The isolated bacteria showed different susceptibility to the antibiotics used in this study. S. saprophyticus isolates showed high sensitivity to Amikacin, Nitrofuratoin and Cefolaxime (the resistance rate for these antibiotics were 11 %, 12.1 % and 12.1 % respectively). While these isolates showed high resistance to Streptomycin 76.9 %, Nalidixic acid 67 % and Cephalexin 69.29 %. E. coli isolates showed low resistance rate to Amikacin 9.28 %, Ciprofloxacin 10.1 %, whereas showed high resistance rate to Cephalexin 47. %, Streptomycin 84 % and Ampicillin 82.6 %. The isolates of S. aureus showed low resistance to Ciprofloxacin 18.2 %, Carbencillin 18.2 % and Amikacin 15.2 % and high resistance for Ampicillin 18.8 %, Nalidixic acid 75.8 % and Cephalexin 72.79 %. Other isolated bacteria showed a different percentages of susceptibility to antibiotics Serratia odorifera, Proteus vulgaris and Enterococcus faecalis showed a significant resistance to antibiotics, while S. epidermidis isolates showed low percentages of resistance to Ciprofloxacin 9.1 %, Amikacin 18.2 % and Gentamicin 9.1 %. For S. saprophyticus the minimal inhibitory concentrations (MIC) resulted from Ciprofloxacin, Gentamicin and Cefotaxime were 8 - 32, 8 - 64 and 4 - 8 ?g/ml, and for E. coli the MIC results were 2, 8 - 16 and 16 - 64 ?g/ml. The MIC results were 2 - 8, 8 - 128, 32 - 256 ?g/ml for S. aureus, while the MIC results were 8 - 32, 16 - 64 and 16 - 128 ?g/ml for Klebsiella pneumoniae.

دراسة بكتيريولوجية وراثية لبعض الانواع المعزولة من المصابين وغير المصابين بداء السكري == Bacteriological And Genetic Study of Some Species of Bacteria That Isolated From Patients And Healthy of Diabetes

Author name: قناة محمود عطية سلامة الجبوري

Supervisor name: كركز محمد ثلج الجبوري | رشيد حميد حسن

General topic: Biology

Specific topic: Microbiology

Degree: Doctorate

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

Abstract: اجريت هذه الدراسة في مختبرات مستشفى تكريت التعليمي ومختبرات قسم علوم الحياة - كلية العلوم في جامعة تكريت للمدة من كانون الثاني 2010 لغاية كانون الثاني 2011، تضمنت جمع 534 عينة من اخماج المسالك البولية والجروح للمرضى المصابين بالنوع الاول والثاني من السكري | The study was conducted in the Laboratories of Teaching Tikrit Hospital and the laboratories of the Biology Department - College of Science - Tikrit University from January 2010 to the January 2011. In this study five hundreds thirty four samples of urine and wounds from patients with diabetes and healthy were collected from both sexes and all ages to isolation and identification of pathogenic bacteria by morphological, cultural and biochemical characteristics then determination of virulence factors and genetic variation between dominant type depending on the isolating source and the type of infection in diabetic patients. The counts of urinary tract infections and wound infection in non _diabetic patients were 118 and 52 respectively.The percentage of positive isolation of bacteria for both of them were 44, and 38.4% respectively and from the same patients with urinary tract Infections and wounds and Insulin Depended Diabetes (IDD) patients were 158 and 68 samples respectively and the percentage of bacterial isolation were at 78.5 and 67.6% respectively. The patients with Insulin Non - dependent Diabetes (INDD) were 69 and 42 samples, where positive isolates from bacteria were 75 and 71.4% respectively. The infections females from the Healthy and Diabetes Patients that (IDD) or (INDD) were larger than that of the males patients and with the same state with the wounds infections state for (IDD) patients, whereas the rate was smaller than of males for wounds infections to patients with the other diabetes infections type. The age group between 41 - 60 years was the larger percentage with all infections, except with wounds infections to (INDD) patients, while the age group between 16 - 40 years was the larger, and the infections were the largest means in the Winter and Autumn compare the other seasons.The higher rate of bacteria that isolated from patients with Urinary Tract Infections was Escherichia coli then other types like Citrobacter diversus , Proteus mirabilis, Morganella morganii, and Enterobacter aerogenes. The larger rate of bacteria in patients with diabetes and wounds Infections was Escherichia coli then Citrobacter diversus, Proteus mirabilis, Enterobacter aerogenes, Morganella morganii and Staphylococcus aureus. The rate of diabetes infections with urinary tract infections and wounds increased in winter and autumn seasons more than of summer and spring seasons, Most bacterial isolates where sensitive for chloramphenicol.Other antibiotics were highly variable in their ability to inhibit bacterial isolates.the bacterial isolates were different in their ability to produce virulence factors, the diabetes infections was the reason of increase the variation in their ability to produce that virulence factor and the bacteria that isolated from diabetes patients produced haemolysine factor and capsule.PCR technique was used to show the genetic variations for the more repeats bacterial isolates isolated from all sources infections and used the Specific Primers (KPSMT II) group II capsule, (CNF1) Cytotoxic Necrotizing factor, (CNFs) and (HLY A) haemolysine, the bands appeared after electrophoresis to represent the used Primers, one band was appeared in the sample of diabetes Patients with Urinary Tract Infections(KPSMT II) at molecular weight 270 bp, and one band appeared in the sample of diabetes with urinary tract infections for Primer (HLY A) and it is molecular weight was 177 bp. One band appeared in the sample of diabetes patients for the primer (CNF1)hg with Wound Infections and it is molecular weight 450 bp, and there is not any band in the Primer (CNFs).

عزل وتشخيص بكتريا Enterococcus faecalis من مصادر مرضية مختلفة ودراسة امراضيتها في الفئران المختبرية == Isolation And Diagnosis of Enterococcus Faecalis From Different Clinical Sources And Study of The Pathogenicity In Experimental Mice

Author name: عباس ياسين حسن

Supervisor name: وعد محمود رؤوف | عباس عبود فرحان

General topic: Biology

Specific topic: Microbiology

Degree: Doctorate

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

Abstract: اجريت الدراسة الحالية بهدف عزل وتشخيص المكورات المعوية البرازية Enterococcus faecalis من مصادر سريرية مختلفة، وتقييم التغيرات المظهرية والافات المرضية في بعض اعضاء الفئران البيض السويسرية المصابة تجريبيا لذا تضمنت هذه الدراسة محورين رئيسين هما : الجانب ال | The present study was conducted to isolate and diagnose an Enterococcus faecalis which are isolated from different clinical sources, and evaluate the appearance changes and pathological lesions in some Swiss white mice organs which are infected experimentally, so this study deals with two main aspects : The bacteriological type : The results obtained may be summarized as follows : - The total number of (310) clinical samples were collected from Baquba Educational Hospital and Al - Batol Hospital for Maternity and Children in Baquba city from the beginning of March to the end of September (2009) with various ages and from both sexes, including (82) urine samples from patients with urinary tract infections, (46) vaginal swab from infection of female reproduction system, (45) surgical wound swabs, (38) stool sample from patients with abdominal pains and diarrhea, (32) throat swabs from tonsillitis patients, (25) middle ear swabs, (22) burn swabs, and (20) blood sample from patients with bacteremia and prosthetic valvular heart diseases. The isolates diagnose depended on the cultural and microscobial characteristics and biochemical tests, serological diagnosis according to Lancefield method and assertion diagnosis according to (API - 20 Strep) was done to find (32) isolates of Enterococcus : (28) isolates of E. faecalis (87.5%), (3) isolates of E. faecium (9.4%) and one isolate of E.gallinarum (3.1%). - The sensitivity of E. faecalis was tested against (23) different antibiotics. The isolates showed resistance of about (100%) against Aztreonam, Amikacin, Co - Trimoxazole, Cephalexin and Cefotaxime, while the isolates were sensitive about (100%) against Amoxicillin, Nitrofurantoin, Imipenem and Ampicillin, while they showed a various resistance to another antibiotics involved in this study. - The ability of the isolates for producing the Beta - lactamase enzymes was tested by the standard rapid iodometric method. The results showed the disability of these isolates for producing the Beta - lactamase enzymes. - The production ability of E. faecalis for some virulence factors was evaluated. The results showed the ability of these isolates of adherence to the uroepithelial cells of human's urinary system were (93%), and (82.1%) were bacteriocin producer, and (28.6%) were hemolysin producer, and (43%) were gelatinase producer, and (10.7%) were lipase producer, and (35.7%) were capsule producer, and (14.3%) were cytolysin producer, while none of the isolates under the study showed the ability of haemagglutination.Histopathology type : (4.6 x 106) cell / ml concentration of the bacterial suspension of E. faecalis was used orally on mice and histopathological changes were examined after (3, 5, 7, 14) days of infection, which revealed the ability of bacteria for colonization and causing pathological lesions and many histological changes in the liver, kidney, small intestine and hearts of these animals. The damage in the animal tissues of the second group (treated with Streptomycin and EFU10) was more than that in the third group (treated with Streptomycin and EFS14), and fourth group (treated with EFU10 only). Generaly, the most important histopathological changes were the necrosis in some areas, and infiltration of inflammatory cells in infected tissues. These pathological lesions cause damage and decompose of tissues with distortion of their morphologies.

عزل وتشخيص بعض انواع الجراثيم المسببة لالتهابات الزائدة الدودية في مدينة تكريت == Isolation And Identification of Some Baceterial Speices Which Caused Appendices Infections In Tikrit City

Author name: عبد عبد الله محمد الجبوري

Supervisor name: اميرة محمود محمد الراوي | علي صالح حسين الجبوري

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

تشخيص المسببات البكتيرية والفايروسية لخمج الاغشية السحائية في مدينة الموصل == Detection of Bacterial And Viral Causes of Meningitis In Mosul

Author name: قاسم مصطفى خالد

Supervisor name: علي صالح حسين الجبوري | اميرة محمود محمد الراوي

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

Abstract: تضمنت الدراسة اجراء عدد من الاختبارات العيانية والكيميائية على عينات سائل النخاع الشوكي (CSF) cerebrospinal fluid البالغة 152 عينة والتي جمعت من الاطفال الراقدين في مستشفى الخنساء التعليمي ومستشفى ابن الاثير التعليمي في مدينة الموصل لحديثي الولادة لغاية 1 | This study includes performing of macroscopical and chemical and Microbial tests on 152 samples of cerebrospinal fluid (CSF) collected from hospitalized children in Al - khansaa and Ibn - Al - Atheer teaching hospitals in Mosul city with ages ranged from newbornn to 12 years old. Suspected to be infected with meningitis during the interval from August 2009 till April 2010.The results showed that 46.1% of samples were normal with respect to colour and appearance as well as variations in the levels of the three variables including glucose, protein and total cell count with differential cells in the studied samples.The study also included isolation and identification of gram positive and negative bacteria, morphological, cultural and biochemical tests and API were done depending on identification of the isolated bacteria.Many types of isolated gram positive bacteria belonged to the two genera staphylococcus and streptococcus; the results revealed that S.aureus was the more predominant within gram positive causes. Well as many types of gram negative bacteria were isolated represented with Klebsiella pneumoniae, Haemophilus influenzae, Acinetobacter spp. E.coli and Neisseria meningitidis with different percentages with dominance of K.pneumonia and H.influenzae.The study also included screening of some viral causes of meningitis from (35) CSF samples which gave negative culture results by using qualitative Enzyme immunoassays technique using Minividas apparatus.The results showed positive results with 14.2% for two types of virus including Herpes simplex virus (HSV) and Cytomegalo virus (CMV).The study indicated that males were more compared with Females with 55.9% and 44.1% to males and females respectively and highest infection rate occurred in 1 day - 2 years old.Statistical analysis showed the presence of significant correlation between sex, age and the three varieties glucose, protein and total cell count the results showed there is no significant differences between the studied factors.The study also includes sensitivity for some antibiotics, the results showed that gram positive bacteria were the more sensitive to Vancomycin and Cefatriaxone as well as Clindamycin while gram negative bacteria showed sensitivity and resistance percentages of bacteria in general were varied to other antibiotics under study.

دراسة تاثير مستخلصات القرفة (Cinnamomum zeylanicum) والسماق (Rhus coriaria) في التثبيط المايكروبي وبعض المعايير الحيوية في ذكور الجرذان == Study The Effects of Cinnamon (Cinnamomum Zeylanicum) And Sumac (Rhus Coriaria) Extracts On Microbial Inhibition And Some Biological Parameters In Rats Male

Author name: فراس عدنان حسين الزيدي

Supervisor name: كركز محمد ثلج الجبوري

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

Abstract: صممت الدراسة في مختبرات قسم علوم الحياة / كلية التربية وقسم علوم الاغذية / كلية الزراعة في جامعة تكريت, اذ تضمنت الدراسة التعرف على المواد الفعالة في المستخلصات المائية والكحولية في كل من قلف القرفة وبذور السماق واختبار فعاليتها التثبيطية عند تركيز 10, 25 | This study was conducted in Biology department laboratory / Education college and Food science department in Agriculture college in Tikrit University. the study was conducted to investigated to the aquaies and alcoholic activities extracts from each Cinnamon bark and sumac seeds and assay of inhibition activity concentration at 10, 25, 50 and 100 mg/wells against gram positive and negative bacteria and phagocytosis Immunity level after injection by E.coli type, further more to study the effect it in some physiological parameters in male rats after oral administration for 8 days by 50 and 100 mg/kg from rats body weight from each aquais and alcoholic extracts. The results was illustrated the aquaies and alcoholic extracts from each Cinnamon bark and sumac seeds were contains the active groups from compound such as Tannins, Resins, Phenols, Flavonoids, Alkaloids, Glycosides, Coumarins. while the effects was found the aquaies extracts a high significantly effects (p < 0.05) from alcoholic by inhibition ability when assay. The Minimum inhibition concentration (MIC) from each ones which mass 50 and 125 mg/ml from culture media to inhibition concentration by E.coli and S.pyogen cinnamon bark aquaies extract. it was 75 and 100 mg/ml from culture media to inhibition concentration by E.coli and S.pyogen from alcohol extracting its inhibiting efficiency throw the measure of the diameter of the inhibiting area that has shown that the gratest effect was E.coli bacteria which its diameter of inhibiting area 17 mm and when the concentration is 100 mg/wells from the alcoholic and aquaies extracting and the less effect is S.pyogen and S.aeruginosa in case of the extraction from cinnamon bark it was 17 mm the diameter of inhibiting area of E.coli bacteria. when the concentration 100 mg/wells from aquaies extracting from sumac. whether with alcohol extraction, the bacterial type were similar in their sensitivity in diameter of inhibiting from 18 to 20 mm but the oral administration of the extract on the level of phagocytosis process through the injection of rats in affixed number from E.coli bacteria. The result was illustrated the type of concentration from each cinnamon bark and sumac seeds such as aquaies and alcoholic was caused an increase in the phagocytosis process through the significantly decrease in the number of bacteria with increase of the concentration from the groups that oral administration from extraction that there number wear (zero) on the concentration 100 mg/kg from rats body weight when the time is 120 minute which was equal with effincy of the ciprofloxacin antibiotic on the concentration 5 mg/kg from rats body weight. The result also showed the effect of oral administration from the extraction of cinnamon bark and sumac seeds such as aquaies and alcoholic, that significantly caused the decreased in the concentration of the hemoglobin and Total count red blood cells and the packed cell volume on the concentration 100 mg/kg from the weight but the measures have not significantly changed the parameters MCV, MCH, MCHC with increase of concentration from extraction compared with the group of controlling. The white blood cells also decreased in the significantly aquaeis and alcoholic extracting from the cinnamon bark it was 6.8 × 103/mm3 on the oral administration of the rats from the concentration 100 mg/kg from the body weight of the aquaeis extracting, and 6.8 × 103/mm3 on the oral administration of the rats from the concentration 100 mg/kg from the body weight of the alcoholic extracting, That numbers have not affected during the oral administration from the extractions of sumac only on the concentration 100 mg/kg from the body weight of the alcohol extracting which was 5.6 × 103/mm3 the increase was in the ratio of the number of the neutrophils in the whole extraction alcoholic and aquaies for the both of plants. While the effect of oral administration from the extraction in the lipids profiles was clear in the decrease significantly in the concentration of the glucose and albumin and Urea and uric acid and creatinine and triglyceride and, cholesterol, and the low density lipoproteins (LDL) and very low density lipoproteins (VLDL), significant increasing in globulin and high density lipoproteins (HDL) in aquaies and alcoholic extraction of sumac seeds while the value of Total protein and HDL is not significantly differtited in aquaies and alcoholic extraction moreover oral administration of the both of plants. The enzyme activity value was included significantly decreased of the Alkaline phosphtase activity value with the increased orally administration from aquaies and alcoholic extracts from both of plants, while increased significantly Aspartames amenotransferase (AST) activity value in all cinnamon extracts while was significantly decreased when administrate from sumac seeds extract, But don’t significantly differ Alanine amenotransferase (ALT) activity value in all concentration from aquaies and alcoholic extracts from both of plants.

دراسة التاثير المثبط لبعض انواع بكتريا حامض اللاكتيك ضد بعض انواع الفطريات الممرضة والمنتجة للسموم == Study The Inhibition Effect of Some Species of Lactic Acid Bacteria Against Some Pathogenic And Toxins Producing Fungi Types

Author name: لؤي برهان مصطفى محمد

Supervisor name: كركز محمد ثلج الجبوري

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

Abstract: اجريت الدراسة في مختبرات قسم علوم الحياة في كلية التربية بهدف عزل وتشخيص بعض انواع بكتريا حامض اللاكتيك ومحاولة اختبار قابلية خلاياها او النواتج الايضية منها وكذلك دراسة تاثير المستويات المختلفة من درجة الحرارة والاس الهيدروجيني في القابليـة التثبيطية لب | This work aimed to investigate the effects of some lactic acid bacteria (LAB) species (cells or their metabolic products) at different temperatures and pH levels on some soil pathogenic or toxin produced fungi species. Six LAB isolates and the identification was depended on the morphological and cultural characterized and biochemical testes, the isolates were determined as Lactobacillus delubricii subsp. delubricii, Lactobacillus delubricii subsp. bulgaricus, Lactobcillus casei, Lactobacillus acidophilus, Leuconostoc mesentroides and Streptococcus thermophilus, and four fungal species Microsporum canis, Trichophyton mentagrophytes, Aspergillus fumigatus and Rhizopus stolinfer were identified. In this study the highest inhibition effect against the above mentioned fungi was shown by L. acidophilus as a significant (P< 0.05) efficacy where the diameter of inhibition zone in case of M. canis, T. mentagrophytes, A. fumigtus and R. stolonifer was 26, 32, 30 and 28 mm respectively. Less inhibition activity was exhibited by Leu. mesentroides and Str. thermophilus while the lowest inhibition was shown by L. delubricii. Results showed also that the temperature optimal for the growth of bacterial species (except L. casei and Str. thermophilus) tested and their inhibition activity was 30 °C. However, temperature of 35 °C was the optimal for the highest inhibitory effect of both L. casei and Str. thermophilus. At 25 °C of studied bacterial species showed decreased inhibitory effect against the tested fungi. Concerning the pH, the present study showed that the highest inhibitory of all tested bacteria species (except L. acidophilus) was at pH 6.5, L. acidophilus showed such activity at pH 5.5. This study revealed that the inhibitory effect of metabolites produced mixture of the tested bacterial species was directly proportional with its concentrate. Where this mixture was used at media concentration of 10, 20 and 40 mg/ml cultural. However, metabolic products from L. acidophilus, Leu. mesentroides and Str. thermophilus was the most effective in inhibition activity compared with the rest of the bacteria species used particularly at 40 mg/ml cultural media

دراسة بكتريولوجية لبيئة بعض كهوف شمال العراق والتحري عن الدور الجرثومي فيها == A Bacteriological Study On Some North Iraqi Caves Environment And Detection On The Bacterial Role In It

Author name: امنة غانم عمر العاني

Supervisor name: جهاد ذياب محل الجنابي | اميرة محمود محمد الراوي

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

Abstract: تضمنت الدراسة اجراء عدد من الفحوصات البيئية والبكتريولوجية على عينات الصخور ومياه النضح البالغ عددها 100 عينة والماخوذة من بعض كهوف المنطقة الشمالية في العراق التي شملت بهيري, شرانش, خنس, بجيل وانشكي للفترة ما بين تشرين الثاني - 2010 لغاية نيسان - 2011.ت | This study was included some of ecological and bacteriological tests on rocks and dripping water samples which were included 100 samples taken from some of north region caves in Iraq including Beherii, Sharanish, Khanas, Bejeel and Inishky from the period between November - 2010 to April - 2011.The results of ecological tests which represented with cave environment temperature were ranged from (13 - 24)?C and dripping water temperature were ranged from (11 - 20)?C while the results of pH values for the same sample shows simple variation between (7 - 8) for dripping water and (6 - 9) for the rocks samples. The results of geological screening and mineralization by using X - Ray Fluorescence and X - Ray - Diffraction showed that Beherii cave was mainly composed of manganese with 102 ppm comparing with other caves. While the concentration of iron and sulfur oxides were very low for all caves. The rocks of Beherii and Khanas caves were mainly composed of Dolomite (CaMg (CO3)2), Sharanish cave was composed of Calcite (CaCO3) and Dolomite with the closed ratio, while the rocks of Bejeel and Inishky were composed mainly of Calcite. The isolated bacteria in this study were identified according to cultural and morphological characteristics and biochemical tests, while the bacillus species were identified by using Microgen Bacillus Id System. Twenty two bacterial isolates were identified from total samples. There were nine (9)identified isolates from Beherii cave with 40.9% including Arthrobacter spp., Lysobacter spp., Caulobacter spp., Bacillus freudenreichii and Bacillus subtilis in with 4.5% for each isolate, while there was 18.1% of Methanogenic bacteria with its four genuses including Methanobacterium spp., Methanobrevibacter spp. Methanospirillium spp. and Methanosata spp. In Sharanish cave there was one isolate of sulfur oxidizing bacteria with 4.5 % from the total isolates. Three isolates were identified from Khanas cave included Pseudomonas spp., Xanthobacter spp., Clostridium spp. with 4.5% for each isolate. In addition, it was obtained from a cave Bejeel on six isolates included Bacillus lichiniformis, Bacillus lentus and 2 isolates of Bacillus cereus group, Streptomyces spp. and Gallionella spp. with 4.5% for each isolate and Merismopedia spp., Myxococcus Xanthus, Clostridium spp. were Isolated from Inishky cave with 4.5%for each isolate. The relation between some of bacterial species were studied by detection of the lytic ability of Lysobacter spp. and Myxococcus xanthus for Arthrobacter spp.The microbial role in caves were studied by detection of the ability of some isolated bacteria in Calcium Carbonate (calcite) formation and estimatation of calcite production, Xanthobacter spp. was the highest productive bacteria which gives0.2073 gram during 14 days comparing with other bacterial species.In addition, the effect of temperature and pH on calcite formation by Bacillus freudenreichii were studied, the results showed variation on calcite shape in 20?C and 30?C while the highest value of calcite production in pH.8 was 0.1336 gram comparing with pH.9 with 0.0190 calcite gram. The study also detected the ability of some isolated bacteria to oxidize of iron, manganese and sulfur, where Streptomyces spp. Gallionella spp. and one isolate of bacillus cereus group have shown the ability of oxidize iron on leptothrix medium while Bacillus freudenreichii, Bacillus lichinformis, Bacillus lentus, one isolate of Bacillus cereus group and Streptomyces spp. have shown the ability to the oxidize of manganese on Krumbein and Altmann Agar Medium. In addition, sulfur oxidizing bacteria has shown ability to oxidize sulfur on M.S. Agar and produce sulfuric acid as a product of the oxidation process.

دراسة بيئية ومايكروبايولوجية في شركة مصافي الشمال

Author name: سعاد حمود محمد حماد البشار

Supervisor name: رشيد حميد حسن السامرائي

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

دراسة بكتريولوجية ووراثية لبعض البكتريا المعزولة من اخماج الجهاز التنفسي السفلي لدى البالغين في مدينة تكريت == Bacteria Isolated From Lower Respiratory Tract Infections In Adult at Tikrit City

Author name: هدى صالح خضر

Supervisor name: وعد محمود رؤوف | علي صالح حسين

General topic: Biology

Specific topic: Microbiology

Degree: Doctorate

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

دراسة بعض الظروف البيئية ومكونات الوسط الغذائي في تنمية الفطر Aspergillus niger وانتاجه لانزيم الانيولينيز وقدرته التثبيطية ضد بعض الانواع البكتيرية الممرضة == A study of some environmental conditions and medium composition in Aspergillus niger growth, inulinase production and its inhibition ability against some pathogenic bacterial species

Author name: نور لطفي علي محمود

Supervisor name: امين سليمان بدوي | كركز محمد ثلج

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

تاثير المستخلصات المائية والكحولية لنوعين من الحامول Cuscuta في نمو بعض انواع الاحياء المجهرية == Effect of the aqueous and alcoholic extracts of two Cuscuta species in growth of some species of Micro - organism

Author name: مصطفى قحطان مصطفى السماعيل

Supervisor name: طالب عويد الخزرجي

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

تاثير بكتريا Lactobacillus acidophilus وBifidobacterium bifidum وبعض المستخلصات النباتية على نمو وضراوة النوع Streptococcus pyogenes == Effect of Lactobacilus acidophilus and Bifidobacterium bifidum and some Plant Extracts on Growth and Virulence of Streptococcus pyogenes

Author name: مروة حسن عبد الوهاب الصميدعي

Supervisor name: كـركـز محمــد ثلــج

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

عزل وتشخيص بعض انواع بكتريا حامض اللاكتيك العلاجيه ودراسة تاثيرها على بعض المتغيرات الفسلجية والكيموحيوية في الجرذان نوع Albino == Isolation and Identification of some Types of Therapeutic Lactic Acid Bacteria and Study its effect on the Biochemical and Physiological Parameters in Albino Rats

Author name: صلاح صديم صالح الدوري

Supervisor name: كركز محمد ثلج | امين سليمان بدوي

General topic: Biology

Specific topic: Microbiology

Degree: Doctorate

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

دراسة بعض العوامل المؤثرة على انتاج المضادات الحيوية من انواع بكتيريا Streptomyces المعزولة محليا == Study the Some Factors Effects on Antibiotics Produce by Locally Isolated of Steptomyces Species Bacteria

Author name: شيماء ناجي دحام التكريتي

Supervisor name: علي صالح حسين الجبوري

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

دراسة قابلية بكتريا Lactobacillus acidophilus وBifidobacterium bifidum في الوقاية والعلاج من التهاب الامعاء المحدث بال Salmonella typhimurium في الجرذان == Study of ability of Lactobacillus acidophilus and Bifidobacterium bifidum in the prevention and Treatment from enteritis induced by Salmonella typhimurium in Rats

Author name: زينب نشات شكر محمود السعدي

Supervisor name: عبد المجيد عبد الله السعدي | علي صالح حسين الجبوري

General topic: Biology

Specific topic: Microbiology

Degree: Doctorate

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

دراسة بكتريولوجية مقارنة بين مسببات اخماج الجهاز التنفسي المعزولة من المرضى العاملين في شركة مصافي الشمال ومرضى مستشفى تكريت التعليمي == Comparative Bacteriological Study between Bacterial Causes of Respiratory Infections Isolated from Patients Working in NRC and those from Tikrit Teaching Hospital

Author name: اشواق يونس نوري

Supervisor name: محيميد مد الله الجبوري

General topic: Biology

Specific topic: Microbiology

Degree: Doctorate

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

دراسة المكورات العنقودية الذهبية المعزولة من اجسام المصورين الشعاعيين == Study Of Staphylococcus aureus Isolated From X-Rays' Technicians

Author name: اشواق يونس نوري الدوري

Supervisor name: علي صالح حسين | اياد محمد علي فاضل

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

تمثيل السكريات بوساطة السيانوبكتريا المثبتة للنيتروجين المعزولة محليا == The Assimilation of Sugar by Nitrogen Fixing cyanobactera Locally Isolated

Author name: محمد نظير معروف الدوري

Supervisor name: علي صالـح حسين الجبوري

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

عزل وتشخيص مسببات التهاب الاذن الوسطى القيحي المزمن للمرضى الوافدين الى مستشفى رزكاري التعليمي في محافظة اربيل == Isolation and Identification of Causative Agents of Chronic Suppurative Otitis Media in Patients Admitted to Rizgari Teaching Hospital in Erbil Government

Author name: شيلان صلاح عبد الله

Supervisor name: فريدون عبد القادر صالح

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

دراسة كفاءة الزيوت الطيارة المستخلصة من بعض النباتات الطبية في تثبيط نمو انواع من البكتريا الممرضة والفطريات الجلدية == Study the inhibitory effect of volatile oils extracted form some midical plants on some phathogenic bacteria and fungi

Author name: سندس جاسم محمد الجبوري

Supervisor name: علي اسماعيل السنافي | امين سليمان بدوي

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

التحلل الحيوي لانواع من النفط الخام بفعل الجراثيم المعزولة من ترب مصافي العراق الشمالية == The Biodegradation of Some Types of Crude Oil by the Action of the Germs Isolated from Soils in North Iraqi Refineries

Author name: ياسين حسين عويد وسمي الجبوري

Supervisor name: علي صالح حسين الجبوري | جهاد ذياب محل الجنابي

General topic: Biology

Specific topic: Microbiology

Degree: Doctorate

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

دراسة جرثومية للنوعين Haemophilus parainfluenzae وHaemophilus aphrophilus المعزولين من المرضى المصابين باصابات الجهاز التنفسي العلوي في مدينة الموصل == BACTERIOLOGICAL STUDY OF Haemophilus parainfluenzae AND Haemophilus aphrophilus ISOLATED FROM THE PATIENTS WITH UPPER RESPIRATORY TRACT INFECTION IN MOSUL CITY

Author name: اوس ابراهيم سليمان نادر

Supervisor name: علي صالح حسين

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages:

دراسة مايكروبية على لبن وجبن مدينة تكريت

Author name: بيمان علي كريم

Supervisor name: علي صالح حسين الجبوري | امين سليمان بدوي

General topic: Biology

Specific topic: Microbiology

Degree: Master

University: Tikrit University - Faculty Of Education - Department Of Biology

Language: Arabic

University location: Salahaddin

First pages: