Assessment of mosquito larvicidal potency of cyclic lipopeptides produced by Bacillus subtilis strains

Das, Kishore ; Mukherjee, Ashis K. (2006) Assessment of mosquito larvicidal potency of cyclic lipopeptides produced by Bacillus subtilis strains Acta Tropica, 97 (2). pp. 168-173. ISSN 0001706X

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Official URL: http://doi.org/10.1016/j.actatropica.2005.10.002

Related URL: http://dx.doi.org/10.1016/j.actatropica.2005.10.002

Abstract

In this study, mosquito larvicidal potency of cyclic lipopeptides (CLPs) secreted by two Bacillus subtilis strains were determined. LC50 of the crude CLPs secreted by B. subtilis DM-03 and DM-04 strains against third instar larvae of Culex quinquefasciatus was 120.0 ± 5.0 and 300.0 ± 8.0 mg/l respectively post 24 h of treatment. Physico-chemical factors such as pH of water, incubation temperature, heating and exposure to sunlight hardly influenced the larvicidal potency of these CLPs. Present study provided the evidence that B. subtilis lipopeptides were safe to Indian major carp Labeo rohita, a non-target aquatic organism. These properties of B. subtilis CLPs can be exploited for the formulation of a safer, novel biopesticide for effective control of mosquito larvae.

Item Type:Article
Source:Copyright of this article belongs to Elsevier B.V.
Keywords:Bacillus subtilis, Culex quinquefasciatus, Larvicidal potency, Cyclic lipopeptides, Labeo rohita
ID Code:126901
Deposited On:13 Oct 2022 08:09
Last Modified:13 Oct 2022 08:09

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