نتایج جستجو برای: metarhizium
تعداد نتایج: 1337 فیلتر نتایج به سال:
Beauveria bassiana (Balsamo) Vuellemin, Metarhizium anisopliae (Metschnikoff) Sorokin and Vertillium lecanii are entomopathogenic fungi (EPF) that occur naturally in the environment and have a potential as biological control agents against many insect pests. A laboratory study was conducted to mass produce entomopathogenic fungus, Beauveria bassiana, Metarhizium anisopliae and Verticillium leca...
Increased potential for disease transmission among nest-mates means living in groups has inherent costs. This increased potential is predicted to select for disease resistance mechanisms that are enhanced by cooperative exchanges among group members, a phenomenon known as social immunity. One potential mediator of social immunity is diet nutritional balance because traits underlying immunity ca...
در این پژوهش ابتدا زهرآگینی سه جدایه از قارچ metarhizium anisopliae (ascomycota, clavicipitaceae) روی لارو سن دو تریپس پیاز، lindman thrips tabaci با روش زیست سنجی موسوم به thrips entomopathogenic bioassay system (tebs) و با استفاده از برج پاشش به صورت مستقیم در شش غلظت 103 تا 108 کنیدی در میلی لیتر ارزیابی شد. جدایه ی m. anisopliae eut118 با ایجاد بالاترین مرگ و میر کل و نیز داشتن کمترین مقدار...
subterranean termites are one of the most important pests of buildings, historic monuments and agricultural crops in some parts of iran. using entomopathogenic fungi as microbial insecticides is usually a part of biological control and insect pest management. the pathogenicity of entomopathogenic fungus, metarhizium anisopliae (metschnikoff) sorokin (demi 001) isolated from rhynchophorus ferrug...
Heat tolerance is well known to be key to fungal survival in many habitats, but our mechanistic understanding of how organisms adapt to heat stress is still incomplete. Using Metarhizium robertsii, an emerging model organism for assessing evolutionary processes, we report that pyruvate is in the vanguard of molecules that scavenge heat-induced reactive oxygen species (ROS). We show that, as wel...
Swainsonine-a cytotoxic fungal alkaloid and a potential cancer therapy drug-is produced by the insect pathogen and plant symbiont Metarhizium robertsii, the clover pathogen Slafractonia leguminicola, locoweed symbionts belonging to Alternaria sect. Undifilum, and a recently discovered morning glory symbiont belonging to order Chaetothyriales. Genome sequence analyses revealed that these fungi s...
Most plants obtain nitrogen through nitrogen-fixing bacteria and microbial decomposition of plant and animal material. Many vascular plants are able to form close symbiotic associations with endophytic fungi. Metarhizium is a common plant endophyte found in a large number of ecosystems. This abundant soil fungus is also a pathogen to a large number of insects, which are a source of nitrogen. It...
background the brown-banded cockroach supella longipalpa (f.) as a mechanical vector of pathogens and source of allergens has recently become widespread in the city of ahvaz, southwestern iran. objectives this research was done to evaluate the efficacy of a dust-formulation of metarhizium anisopliae isolate iran 437c, as a common entomopathogenous fungus, against s. longipalpa. materials and me...
زهرآگینی کنیدی ها و بلاستوسپورهای تولیدی قارچ metarhizium anisopliae در محیط های کشت مختلف علیه پوره ها و حشرات بالغ سن گندم eurygaster integriceps بررسی شد. آزمایش ها با آرایش فاکتوریل در قالب طرح کاملاً تصادفی با سه تکرار انجام شد. کلیۀ آزمون های تعیین زهرآگینی به روش زیست سنجی غوطه وری با غلظت های 103 تا 107 اسپور بر میلی لیتر انجام شد. نتایج نشان داد زهرآگینی بلاستوسپورها و کنیدی های حاصل از...
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