نتایج جستجو برای: vbnc
تعداد نتایج: 208 فیلتر نتایج به سال:
Unculturable and non sporulating fungi represent a great challenge in studying biotrophic ,endotrophic mycorrhizal fungal groups. In this study novel culture dependent technique complemented with PCR was used to detect identify of unculturable soil . To develop techniques for cultivation the purpose expanding studies on biodiversity , Soil Infusion Agar (SIA) developed By technique, from higher...
lactobacillus species play an important role in gastrointestinal (gi) tract function, intestinal microbiota balance, and the immune system activity by exerting a strong activity against many intestinal pathogens. the aim of this study was to isolate lactobacillus species from fecal samples, investigate their antimicrobial properties, and characterixe their bacteriocins encoding genes. 48 fecal ...
BACKGROUND The yeaZ gene product forms part of the conserved network YjeE/YeaZ/YgjD essential for the survival of many gram-negative eubacteria. Among other as yet unidentified roles, YeaZ functions as a resuscitation promoting factor required for survival and resuscitation of cells in a viable but non-culturable (VBNC) state. METHODOLOGY/PRINCIPAL FINDINGS In order to investigate in detail t...
We recently proposed a scout model of the microbial life cycle (S. S. Epstein, Nature 457:1083, 2009), the central element of which is the hypothesis that dormant microbial cells wake up into active (so-called scout) cells stochastically, independently of environmental cues. Here, we check the principal prediction of this hypothesis: under growth-permissive conditions, dormant cells initiate gr...
زمینه: تشخیص آلودگی میکروبی آب شرب به‌روش کشت علاوه بر هزینه بری، زمان‌بر بوده و بر حسب میزان آلودگی چند روز به‌طول می‌انجامد. این درحالی است که شهروندان در این زمان از آب مورد بررسی استفاده می‌نمایند. روش‌های ملکولی دارای حساسیت و سرعت عمل بالایی و زمان عملیاتی کمتری هستند. در این تحقیق روش Multiplex PCR جهت ارزیابی سریع میکروبی آب از نظر کلی فرم، Ecoli و تشخیص احتمالی باکتری‌های VBNC در آزمای...
Introduction: Biodegradation of azo dyes under harsh environmental conditions has been of great interest for the treatment of colored effluents. The present study aims to evaluate Klebsiella quasipneumoniae GT7 for degrading azo dye Carmoisine under extreme pH conditions and high salinity. Materials and Methods: The growth profiles of bacteria were compared under different conditions of salini...
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