نتایج جستجو برای: pseudomonas fluorescens cha0
تعداد نتایج: 53246 فیلتر نتایج به سال:
The root-colonizing bacterium Pseudomonas fluorescens CHA0 was used to construct an oxygen-responsive biosensor. An anaerobically inducible promoter of Pseudomonas aeruginosa, which depends on the FNR (fumarate and nitrate reductase regulation)-like transcriptional regulator ANR (anaerobic regulation of arginine deiminase and nitrate reductase pathways), was fused to the structural lacZ gene of...
تنش های مختلف محیطی شامل تنش های زنده و غیرزنده سبب تولید رادیکال های آزاد اکسیژن می شوند از جمله این تنش ها می توان به برهمکنش گیاه-ویروس اشاره کرد. گیاهان با دارا بودن سیستم ضد اکسنده که شامل ترکیبات آنزیمی و غیر آنزیمی می باشد معمولا سطوح رادیکال های آزاد اکسیژن را در سلول در حد متعادل نگه می دارند. هدف از انجام این تحقیق، بررسی اثر ویروس پیچیدگی شدید بوته چغندرقند (bsctv) و همچنین اثر این و...
Understanding the environmental factors that regulate the biosynthesis of antimicrobial compounds by disease-suppressive strains of Pseudomonas fluorescens is an essential step toward improving the level and reliability of their biocontrol activity. We used liquid culture assays to identify several minerals and carbon sources which had a differential influence on the production of the antibioti...
The two-component regulatory system comprised of the sensor kinase, GacS, and its response regulator, GacA, is involved in regulation of secondary metabolism and many other aspects of bacterial physiology. Although it is known that the sensor kinases RetS and LadS feed into the GacS/GacA system, the mechanism through which this occurs is unknown, as are the protein–protein interactions in this ...
In the plant-beneficial soil bacterium Pseudomonas fluorescens CHA0, the production of biocontrol factors (antifungal secondary metabolites and exoenzymes) is controlled at a posttranscriptional level by the GacS/GacA signal transduction pathway involving RNA-binding protein RsmA as a key regulatory element. This protein is assumed to bind to the ribosome-binding site of target mRNAs and to blo...
The Pseudomonas aeruginosa antimetabolite L-2-amino-4-methoxy-trans-3-butenoic acid (AMB) shares biological activities with 4-formylaminooxyvinylglycine, a related molecule produced by Pseudomonas fluorescens WH6. We found that culture filtrates of a P. aeruginosa strain overproducing AMB weakly interfered with seed germination of the grassy weed Poa annua and strongly inhibited growth of Erwin...
The efficacy of single and combined application Trichoderma harzianum Pseudomonas fluorescens (CHA0) in the controlling Meloidogyne javanica on tomato plants was evaluated under green house conditions. Seeds susceptible cv. Early-Urbana were sown clean plastic pots containing 1.5 kg steam sterilized soil. Four weeks after planting, soil each pot infested with a suspension 20 ml/kg T. (10 6 spor...
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