کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4517276 1624940 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Evaluation of larvicidal potency of Bacillus subtilis SPB1 biosurfactant against Ephestia kuehniella (Lepidoptera: Pyralidae) larvae and influence of abiotic factors on its insecticidal activity
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Evaluation of larvicidal potency of Bacillus subtilis SPB1 biosurfactant against Ephestia kuehniella (Lepidoptera: Pyralidae) larvae and influence of abiotic factors on its insecticidal activity
چکیده انگلیسی

Microbial-derived biosurfactants are amphipathic surface active molecules produced by diverse bacterial genera. A well-known class of such compounds includes the lipopeptides. Many strains of Bacillus are known to produce broad spectrum lipopeptides including surfactin, iturin, bacillomycin, fengycin, lichenysin, etc. In this study, lepidopteran larvicidal potency of the biosurfactant secreted by Bacillus subtilis SPB1 strain was determined. The LC50 of the biosurfactant against third instar larvae of Ephestia kuehniella (Lepidoptera: Pyralidae) was 257.0 μg/g six days post treatment. Interestingly, this insecticide could withstand environmental stresses such as extreme pH and temperature and sunlight/UV radiation. Its larvicidal potency was also resistant to proteases action. These properties of B. subtilis biosurfactant could be exploited for the formulation of a novel biopesticide for effective control of lepidopteran larvae.


► Bacillus subtilis SPB1 biosurfactant was active against Ephestia kuheniella.
► The LC50 was of about 257 ng/g.
► B. subtilis biosurfactant exhibits high stability to varied environmental conditions.
► Its larvicidal potency was also resistant to proteases action.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Stored Products Research - Volume 48, January 2012, Pages 68–72
نویسندگان
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