نتایج جستجو برای: زنبور aphidius ervi
تعداد نتایج: 1876 فیلتر نتایج به سال:
It is of adaptive value for a plant to prepare its defenses when a threat is detected, and certain plant volatiles associated with insect damage, such as cis-jasmone (CJ), are known to switch-on defense metabolism. We used aphid and aphid parasitoid responses to Arabidopsis thaliana as a model system for studying gene expression and defense chemistry and its impact at different trophic levels. ...
Sugars are critical substrates for insect metabolism, but little is known about the transporters and epithelial routes that ensure their constant supply from dietary resources. We have characterized glucose and fructose uptakes across the apical and basolateral membranes of the isolated larval midgut of the aphid parasitoid Aphidius ervi. The uptake of radiolabeled glucose at the basal side of ...
Symbiotic associations between animals and inherited micro-organisms are widespread in nature. In many cases, hosts may be superinfected with multiple inherited symbionts. Acyrthosiphon pisum (the pea aphid) may harbour more than one facultative symbiont (called secondary symbionts) in addition to the obligate primary symbiont, Buchnera aphidicola. Previously we demonstrated that, in a controll...
Temperature changes are common in nature and insects are particularly exposed and sensitive to such variations which can be potential stresses, ultimately affecting life history traits and overall fitness. Braconids have been widely used to study the effects of temperature on host-parasitoid interactions and the present work focused on the solitary endoparasitoid Aphidius ervi Haliday (Hymenopt...
Associative odour learning affects mating behaviour in Aphidius ervi males (Hymenoptera: Braconidae)
زنبورهای زیرخانواده aphidiinae (hymenoptera: braconidae) در کنترل زیستی شته¬ها (hom. : aphididae) از اهمیت زیاد برخوردارند. استفاده¬ی موفقیت آمیز این گروه عوامل کنترل زیستی مستلزم شناسایی سریع و صحیح آن ها می باشد. در برخی موارد به دلیل ریز جثه بودن این زنبورها و وجود اختلافات اندک بین برخی گونه ها، شناسایی آن ها چالش برانگیز است. به این منظور طی سال های 1391 تا 1392زنبور های پارازیتوئید شته ها...
Vertically transmitted micro-organisms can increase in frequency in host populations by providing net benefits to hosts. While laboratory studies have identified diverse beneficial effects conferred by inherited symbionts of insects, they have not explicitly examined the population dynamics of mutualist symbiont infection within populations. In the pea aphid, Acyrthosiphon pisum, the inherited ...
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