نتایج جستجو برای: xanthomonas
تعداد نتایج: 4292 فیلتر نتایج به سال:
Following publication of our article [1], we found errors in analyses performed by the corresponding author (DJS) related to the phylogenetic relationship between Xylella species and the other xanthomonads. These errors do not make any difference to the main findings and conclusions reported in our paper. For example, the phylogenetic positions of NCPPB1131, NCPPB1132 and NCPPB4393 within the G...
Xanthomonas campestris pv. campestris is a necrotrophic bacterial pathogen of crucifers. We report here the draft genome sequences of isolates ICMP 4013 and ICMP 21080 from New Zealand. These sequences will facilitate the identification of race-specific factors in X. campestris pv. campestris.
Xanthomonas oryzae pv. oryzae is the causal agent of rice bacterial blight disease. Numerous genes critical for virulence have been identified. This article reviews current knowledge on the molecular mechanisms of X. oryzae pv. oryzae virulence.
xanthan gum is a microbial polysaccharide of great commercial importance as it has unusual rheological properties in solution and consequent range of applications. in this study, a series of mutants were isolated from xanthomonas campestris ptcc 1473 by ethyl methanesulfonate mutagenesis. the polysaccharide yield of one mutant, xc1473e2, was 30% better than that of the parent strain. it also sh...
صمغ زانتان یک اگزوپلی ساکارید میکروبی و بیوپلیمری با کاربرد های گسترده در صنایع مختلف است. بیشتر مطالعات، وابستگی آشکاری میان سویه مورد استفاده و بازده و ویژگی های صمغ زانتان را گزارش می دهند و جداسازی سویه های xanthomonas spp. از زیستگاه های طبیعی هنوز کاراترین روش غربالگری سویه هایی با توانایی تولید زانتان و کیفیت رئولوژیکی بالا می باشد. در این مطالعه 71 نمونه از خاک زمین های زراعی حومه شهره...
-----------------------------------------------------ABSTRACT----------------------------------------------------Xanthan gum is a natural polysaccharide having an industrial importance. It is commonly called as heteropolysaccharide which is produced by Xanthomonas campestris. In the present investigation Xanthan gum fermentation by local isolates of Xanthomonas campestris NRRL-B-1449 from sugar...
توسکا یکی از مهم ترین گونه های درختی جنگل های شمال کشور بوده و از نظر اقتصادی به عنوان چهارمین درخت تجاری محسوب می شود. یک بیماری لکه برگی ناشی از گونه ای زانتوموناس در توسکا ییلاقی (alnus subcordata subsp. subcordata) در چند منطقه جنگلی استان مازندران گزارش شده است (rahimian et al. 1383. 16th iran. plant protec. cong.,439). براساس یک بررسی ژنومی که در سال های اخیر انجام شده بود باکتری عامل بیم...
Xanthomonas campestris pv. campestris, a plant-associated pathogenic bacterium, is the causal agent of foliar spots and blights in crucifers. The major outer membrane protein, Omp37, of 37 kDa, has been identified, purified to homogeneity, and its characterization has also been carried out. Native Omp37 behaved as a trimer, as revealed by gel filtration and SDS-PAGE. FTIR measurements revealed ...
We have devised a rapid four-step procedure for the generation of directed and unmarked chromosomal deletions in bacteria, based on the use of a novel cloning vector containing the Bacillus subtilis sacB gene that encodes levansucrase and confers sucrose sensitivity, which can be used for counter-selection. Using this technique, we describe the construction of a 6.5 kb directed and unmarked del...
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