نتایج جستجو برای: لکه برگی باکتریایی و pseudomonas syringae pv maculicola
تعداد نتایج: 834103 فیلتر نتایج به سال:
Pseudomonas syringae pv. syringae is a common plant-associated bacterium that causes diseases of both monocot and dicot plants worldwide. To help delineate traits critical to adaptation and survival in the plant environment, we generated complete genome sequences of P. syringae pv. syringae strains B301D and HS191, which represent dicot and monocot strains with distinct host specificities. Intr...
The gene encoding alginate lyase (algL) in Pseudomonas syringae pv. syringae was cloned, sequenced, and overexpressed in Escherichia coli. Alginate lyase activity was optimal when the pH was 7.0 and when assays were conducted at 42 degrees C in the presence of 0.2 M NaCl. In substrate specificity studies, AlgL from P. syringae showed a preference for deacetylated polymannuronic acid. Sequence a...
Syringomycin is a lipodepsinonapeptide phytotoxin synthesized by Pseudomonas syringae pv. syringae on multienzymatic peptide synthetases. Sequence analysis of the interval between the syrB and syrD genes of P. syringae pv. syringae strain B301D revealed a 1,059-bp open reading frame (ORF), designated syrP. The predicted product of this ORF was a 39.6-kDa protein consisting of 353 amino acid res...
چکیده باکتری عامل شانکر درختان میوه هستهدار Pseudomonas syringae pv. syringae(Pss)، بیمارگر خطرناکی است که به بیش از 200 گونه گیاهی مختلف حمله میکند. به دلیل اهمیت بیماری، هدف از انجام این تحقیق شناسایی دقیق عامل بیماری در استان کهگیلویه و بویراحمد و مقایسهی مقاومت برخی ارقام گیلاس نسبت به عامل بیماری بود.طی سال 1394 تا 1395، از درختان هستهدار دارای علائم شانکر، ترشح صمغ و لکهبرگی، 33 سویه...
A putative RNA-binding protein positively regulates salicylic acid-mediated immunity in Arabidopsis.
RNA-binding proteins (RBP) can control gene expression at both transcriptional and post-transcriptional levels. Plants respond to pathogen infection with rapid reprogramming of gene expression. However, little is known about how plant RBP function in plant immunity. Here, we describe the involvement of an RBP, Arabidopsis thaliana RNA-binding protein-defense related 1 (AtRBP-DR1; At4g03110), in...
Acclimation of plants with an abiotic stress can impart tolerance to some biotic stresses. Such a priming response has not been widely studied. In particular, little is known about enhanced defense capacity of drought stress acclimated plants to fungal and bacterial pathogens. Here we show that prior drought acclimation in Nicotiana benthamiana plants imparts tolerance to necrotrophic fungus, S...
طی فصول مختلف سالهای 1391-1389، از گیاهان مختلفی نظیر هستهداران، دانهداران و غلات در استانهای کهگیلویه و بویراحمد، کردستان، فارس و چهارمهال و بختیاری سی سویه pseudomonas syringae pv. syringae جداسازی گردید. شش سویه برای مطالعات بعدی مورد استفاده قرار گرفتند. برای بررسی نوسانات جمعیتی سویههای مختلف pss، هر سویه به تمام گیاهان مورد مطالعه مایهزنی شد. در برگهای هلو سویههای s18،a10 و p5 ب...
Phytopathogenic strains of Pseudomonas syringae are exposed to plant-produced, detrimental levels of hydrogen peroxide during invasion and colonization of host plant tissue. When P. syringae strains were investigated for their capacity to resist H2O2, they were found to contain 10- to 100-fold-higher levels of total catalase activity than selected strains belonging to nonpathogenic related taxa...
Both Pseudomonas aeruginosa and the phytopathogen P. syringae produce the exopolysaccharide alginate. However, the environmental signals that trigger alginate gene expression in P. syringae are different from those in P. aeruginosa with copper being a major signal in P. syringae. In P. aeruginosa, the alternate sigma factor encoded by algT (sigma22) and the response regulator AlgR1 are required...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید