
Bacillus simplex treatment promotes soybean defence against soybean cyst nematodes: A metabolomics study using GC-MS
Author(s) -
Wenshu Kang,
Lijie Chen,
Yuanyuan Wang,
Xiaofeng Zhu,
Xiaoyu Liu,
Haiyan Fan,
Yuxi Duan
Publication year - 2020
Publication title -
plos one
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.99
H-Index - 332
ISSN - 1932-6203
DOI - 10.1371/journal.pone.0237194
Subject(s) - biology , soybean cyst nematode , trehalose , food science , microbiology and biotechnology , maltose , biochemistry , metabolomics , fructose , sucrose , bioinformatics , gene
We aimed to profile the metabolism of soybean roots that were infected with soybean cyst nematodes and treated with Bacillus simplex to identify metabolic differences that may explain nematode resistance. Compared with control soybean roots, B . simplex -treated soybean roots contained lower levels of glucose, fructose, sucrose, and trehalose, which reduced the nematodes’ food source. Furthermore, treatment with B . simplex led to higher levels of melibiose, gluconic acid, lactic acid, phytosphingosine, and noradrenaline in soybean roots, which promoted nematocidal activity. The levels of oxoproline, maltose, and galactose were lowered after B . simplex treatment, which improved disease resistance. Collectively, this study provides insight into the metabolic alterations induced by B . simplex treatment, which affects the interactions with soybean cyst nematodes.