نتایج جستجو برای: a. oligospora
تعداد نتایج: 13431842 فیلتر نتایج به سال:
To study the molecular basis for predator-prey coevolution, we investigated how Caenorhabditis elegans responds to the predatory fungus Arthrobotrys oligospora. C. elegans and other nematodes were attracted to volatile compounds produced by A. oligospora. Gas-chromatographic mass-spectral analyses of A. oligospora-derived volatile metabolites identified several odors mimicking food cues attract...
Over one-year period, 150 pasture soil samples and 138 sheep faecal samples, collected from different parts of Iran were screened for the presence of nematophagous fungi. The samples were cultured at 25ºC on chloramphenicol-2% water agar (CHF-WA) plates in the presence of Haemonchus contortus third stage larvae (L3) and checked over a two-month period for characteristic conidia, conidiophores a...
Most commonly occurring predacious fungus Arthrobotrys oligospora showed great variation in size and shape of conidia on some media. The formation of larger conidia was recorded on beef extract and nutrient agar media. The length of conidia in Richard's YPSS, Sabouraud's, PDA and corn meal agar media was of medium size while smaller conidia were produced on Czapek's, Jensen's, Martin's medium. ...
In their natural habitat, bacteria are consumed by bacterivorous nematodes; however, they are not simply passive preys. Here we report a defensive mechanism used by certain bacteria to mobilize nematode-trapping fungi to kill nematodes. These bacteria release urea, which triggers a lifestyle switch in the fungus Arthrobotrys oligospora from saprophytic to nematode-predatory form; this predaciou...
Two nematode trapping fungi were isolated from aerated soil samples collected fron Anand district( Gujarat) India and identified on the basis of their culture –morphological characteristics and 18S rRNA gene sequencing as Arthrobotrys oligospora and Duddingtonia flagrans . These fungal isolates were assessed for their trapping efficiency further. Trapping structures such as ring like structures...
over one-year period, 150 pasture soil samples and 138 sheep faecal samples, collected from different parts of iran were screened for the presence of nematophagous fungi. the samples were cultured at 25ºc on chloramphenicol-2% water agar (chf-wa) plates in the presence of haemonchus contortus third stage larvae (l3) and checked over a two-month period for characteristic conidia, conidiophores a...
در این تحقیق از تعامل نماتد caenorhabditis elegans، قارچ arthrobotrys oligospora و باکتری bacillus subtilis در کنترل نماتد مولد گره ریشه meloidogyne javanica استفاده شد. باکتری مذکور جهت تحریک سیستم دفاعی گیاه در بدو تیمار و به عنوان غذای نماتد c. elegans و نماتد c. elegans به منظور افزایش تولید تله استفاده شد. قارچoligospora a. پس از 72 ساعتموجب مرگ و میر 77% لاروهای نماتد m. javanica گردید، و...
Nematode-trapping fungi are "carnivorous" and attack their hosts using specialized trapping devices. The morphological development of these traps is the key indicator of their switch from saprophytic to predacious lifestyles. Here, the genome of the nematode-trapping fungus Arthrobotrys oligospora Fres. (ATCC24927) was reported. The genome contains 40.07 Mb assembled sequence with 11,479 predic...
در این تحقیق از تعامل نماتد Caenorhabditis elegans، قارچ Arthrobotrys oligospora و باکتری Bacillus subtilis در کنترل نماتد مولد گره ریشه Meloidogyne javanica استفاده شد. باکتری مذکور جهت تحریک سیستم دفاعی گیاه در بدو تیمار و به عنوان غذای نماتد C. elegans و نماتد C. elegans به منظور افزایش تولید تله استفاده شد. قارچoligospora A. پس از 72 ساعتموجب مرگ و میر 77% لاروهای نماتد M. javanica گردید، ...
The nematophagous fungus Arthrobotrys oligospora captures nematodes using adhesive polymers present on special hyphae (traps) which form a three-dimensional network. To understand further the adhesion mechanisms, A. oligospora surface polymers were visualized by transmission electron microscopy and characterized by chemical methods. Both traps and hyphae were surrounded by a fibrillar layer of ...
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