Surfactin: a novel <i>Aphis gossypii</i> killing surfactin produced by <i>Bacillus australimaris</i> TRM82479 of Taklamakan Desert origin.

ABSTRACT:

Introduction

The cotton aphid Aphis gossypii poses a global, serious threat to cotton yield and quality. Although chemical pesticides are effective, pollution and resistance are increasingly prominent, making development of new biopesticides a priority in the context of green agricultural development.

Methods

Given that reports on the activity of surfactins against A. gossypii are limited, here, 107 Bacillus strains isolated from the extreme environment of the Chinese Taklamakan Desert were screened for insecticidal activity against A. gossypii using the leaf-dip method. Active strains were characterized by morphological observation, 16S rRNA gene sequencing, and phylogenetic analysis. Secondary metabolite synthesis genes were identified by whole-

SUBMITTER: Wang Y 

PROVIDER: S-EPMC11936896 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature