Premium
Identification of lipopeptide xantholysins from Pseudomonas sp. DJ15 and their insecticidal activity against Myzus persicae
Author(s) -
Lim Da Jung,
Yang Si Young,
Noh Mi Young,
Lee Chul Won,
Kim Jin Cheol,
Kim In Seon
Publication year - 2017
Publication title -
entomological research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 20
eISSN - 1748-5967
pISSN - 1738-2297
DOI - 10.1111/1748-5967.12241
Subject(s) - myzus persicae , biology , bioassay , pesticide , pseudomonas , pest analysis , biological pest control , aphid , metabolite , ec50 , botany , bacteria , agronomy , biochemistry , ecology , in vitro , genetics
Myzus persicae is an important insect pest that reduces crop production worldwide. The use of pesticides for aphid control has generated much concern related to insect resistance and undesirable environmental effects. In an effort to discover new alternatives to counter M. persicae , we found that Pseudomonas isolate DJ15 produced insecticidal metabolites. To isolate the insecticidal metabolites, a cell‐free supernatant of DJ15 was extracted and subjected to bioassay‐guided chromatography. Based on the structures elucidated in instrumental analyses, the metabolites were identified as xantholysins A and B. The metabolites showed strong insecticidal activity against M. persicae with 50% mortality at levels of 13.4 and 24.6 μg/mL for xantholysins A and B, respectively. This is the first study to identify xantholysins as insecticidal metabolites against M. persicae .