نتایج جستجو برای: ژن 23s rdna
تعداد نتایج: 29237 فیلتر نتایج به سال:
Lactic acid bacteria (LAB) associated with gaseous spoilage of modified-atmosphere-packaged, raw, tomato-marinated broiler meat strips were identified on the basis of a restriction fragment length polymorphism (RFLP) (ribotyping) database containing DNAs coding for 16S and 23S rRNAs (rDNAs). A mixed LAB population dominated by a Leuconostoc species resembling Leuconostoc gelidum caused the spoi...
Seventy phytoplasma isolates, including 10 previously characterized reference strains, of the aster yellows group were examined by RFLP analysis of PCR-amplified rDNA and RFLP and sequence analysis of the tuf gene. On the basis of rDNA restriction profiles, seven previously proposed 16S rDNA subgroups (16SrI-A, -B, -C, -D, -E, -F and -K) were recognized in the material examined. In addition, th...
Arachis hypogaea. L is a legume of economic importance, which is nodulated by Bradyrhizobium, a slow-growing bacteria. However there is no well characterization of this rhizobia in many areas of China. In the present study, cross-inoculation experiments were performed in cowpea and soybean. The isolated bacteria strains were characterized physiologyically, biochemically and id...
Bacterial leaf blight of rice caused by pathogen Xanthomonas oryzae pv oryzae is a serious pest leading to major loss of rice production world wide. Early detection of pathogen can help in taking necessary precautionary measures to avoid onset and spread of disease. Conventional methods of pathogen identification are laborious, time taking and give inconsistent results. Rapid molecular methods ...
Polymerase chain reactions (PCR) were performed to accomplish quick and accurate detection of Vibrio species. The primers prepared with 16S-23S rDNA intergenic spacer (IGS) region exhibited an excellent species-specificity for Vibrio sp and detected Vibrio sp more successfully than the conventional culture method. Multiplex PCR was also fruitful not only forthe identification of the 5 standard ...
نورتابی زیستی (بیولومینانس) واکنشی شیمیایی است که سبب نشر نور در موجودات زنده میگردد. باکتریهای نورافشان، فراوانترین موجودات نورافشان در طبیعت هستند. برای شناسایی این باکتریها از آزمونهای بیوشیمیایی استفاده میشود. بررسی مولکولی ژن luxA که توالی آن در باکتریهای نورافشان متفاوت است، میتواند در تشخیص این باکتریها مناسب باشد. در پژوهش حاضر، نتایج تعیین جنس باکتریهای نورافشان بر اساس آزمو...
Prochlorococcus is a marine cyanobacterium which is found at high abundances in world's tropical and subtropical oligotrophic oceans. The genus Prochlorococcus can be divided into two major groups based on light physiology. Both of these groups can be further subdivided into genetically distinct lineages, or ecotypes. Real-time polymerase chain reaction (PCR) assays based on sequence difference...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید