Characterization and antifungal activity against Pestalotiopsis of a fusaricidin-type compound produced by Paenibacillus polymyxa Y-1

被引：17

作者：

Yang, Anming ^{[1
]}

Zeng, Song ^{[1
]}

Yu, Lu ^{[1
]}

He, Ming ^{[1
]}

Yang, Yuanyou ^{[1
]}

Zhao, Xiaozhen ^{[1
]}

Jiang, Chaolin ^{[1
]}

Hu, Deyu ^{[1
]}

Song, Baoan ^{[1
]}

机构：

[1] Guizhou Univ, State Key Lab Breeding Base Green Pesticide & Agr, Minist Educ, Key Lab Green Pesticide & Agr Bioengn, Guiyang 550025, Guizhou, Peoples R China

来源：

PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY | 2018年 / 147卷

基金：

中国国家自然科学基金;

关键词：

Dendrobium nobile; Pestalotiopsis; Endophytic bacterium; Fusaricidin; Antifungal mechanism; DRAFT GENOME SEQUENCE; GROWTH-PROMOTING RHIZOBACTERIUM; BACILLUS-POLYMYXA; ANTIMICROBIAL ACTIVITY; STRUCTURE ELUCIDATION; BIOLOGICAL-ACTIVITY; PROTEOMIC ANALYSIS; MASS-SPECTROMETRY; ANTIBIOTICS; STRAIN;

D O I：

10.1016/j.pestbp.2017.08.012

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Dendrobium nobile (D. nobile) is a valuable Chinese herbal medicine. The discovery of microbial resources from has provided a wealth of raw materials. Stalk rot, which is caused by Pestalotiopsis, is one of the most serious diseases of D. nobile and has resulted in serious losses in production. However, an effective method for the prevention and control of stalk rot remains lacking. In this study, we aimed to identify a biocontrol strain against Pestalotiopsis. We isolated Paenibacillus polymyxa Y-1, an endophytic bacterium, from the stem of D. nobile. Three pairs of active metabolites isolated from this bacterium were identified as fusaricidin compounds. We then investigated the mechanism of fusaricidin compounds on Pestalotiopsis via proteomics. Proteomics data showed that the compounds mainly inhibit energy generation in the respiratory chain and amino acid biosynthesis of Pestalotiopsis.

引用

页码：67 / 74

页数：8

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