Frequency, Virulence, and Metalaxyl Sensitivity of Pythium spp. Isolated from Apple Roots Under Conventional and Organic Production Systems
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چکیده
منابع مشابه
identification and sensitivity of pythium ultimum isolated from razavi and north khorasan provinces to metalaxyl
abstract some agricultural fields of razevi and north khorasan provinces were sampled for identification and resistance to metalaxyl of pythium ultimum species isolates. isolation was done between years of 2007 to 2009. van der plaats- niterink key to species of pythium and specific its region of rdna were used for morphological and molecular identification respectively. micrometric characteris...
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The aim of this study was to investigate the prevalence of virulence and Cytolethal Distending Toxin (CDT) genes in the Campylobacter isolates from intestinal contents and gall bladders of broilers and, to evalute their cytotoxic effects on HeLa cell cultures. These genes play important roles in bacterial adherence to intestinal mucosa, flagella-mediated motility, invasive capability and the ab...
متن کاملFREQUENCY AND ANTIBACTERIAL RESISTANCE OF LISTERIA SPP. ISOLATED FROM THE FOOD AND ENVIRONMENTAL SAMPLES IN URMIA
Background & Aims: Genus Listeria especially Listeria monocytogenes (L.monocytogenes), as a food-borne pathogen, is the causative agent of Listeriosis that could be fatal in high risk subjects such as pregnant women, immunocompromised persons, neonates, and elderly. Materials & Methods: In the present study, the frequency of Listeria spp. and L.monocytogenes in 277 food and environmental sampl...
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کاتالیست یک سنتز جدید برای تیواترها توصیف شده است. واکنش الکل ها با آریل، هتروآریل و آلکیل تیو ل ها درحضور 1،3،5- تری آزو- 2،4،6- تری فسفرین-2،2،4،4،6،6 هگزاکلراید ((tapc به عنوان یک کاتالیست موُثر، بازده های خوب تا عالی از تیواترها را حاصل می کند. علاوه براین، واکنش تحت شرایط بدون فلز و بدون حلال پیش می رود، بنابراین یک مکمل جالب برای روش های شناخته شده سنتز تیواترها ارائه می دهد. یک مکانیسم ا...
15 صفحه اولSensitivity of North American Isolates of Phytophthora erythroseptica and Pythium ultimum to Mefenoxam (Metalaxyl)
Since their introduction in the late 1970s, phenylamide fungicides have been used effectively to control diseases caused by the Peronosporales. These fungicides have a very specific mode of action; inhibiting fungal ribosomal RNA polymerases (7). Because of this specificity, there is a relatively high risk that resistance to the fungicide may appear quickly in the target fungal population (3). ...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2002
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis.2002.86.6.669