Antagonizing Aspergillus parasiticus and Promoting Peanut Growth of Bacillus Isolated from Peanut Geocarposphere Soil

作     者：XIAO Wei YAN Pei-sheng WU Han-qi LIN Feng 

作者机构：School of Marine Science and TechnologyHarbin Institute of Technology 

出 版 物：《Journal of Integrative Agriculture》 (农业科学学报（英文版）)

年 卷 期：2014年第13卷第11期

页      面：2445-2451页

核心收录：

学科分类：09[农学] 0904[农学-植物保护] 

基　　金：supported by the National Natural Science Foundation of China (30571244, 30870003) the National Key Technology R&D Program of China (2009BADA0B05-4) 

主　　题：Bacillus strains anti-Aspergillus parasiticus PGPR features peanut 

摘      要：A set of 38 Bacillus strains isolated from peanut geocarposphere soil were screened as potential biological control agent anti-Aspergillus parasiticus. Tip-culture method with rapid and quantitative characteristics was used to determine anti-A. parasiticus activity and the process of isolation could be accelerated with this method. 12 out of 38 Bacillus strains showed high anti-alfatoxin production activity. These 12 Bacillus strains were selected to identify the characteristics of promoting peanuts germination rate. Pot experiment in greenhouse was carried out by using these strains which can promote peanuts germination. Phytohormones in the fermentation broth were also detected as another important reference factor to select the isolates as biological control agent with PGPR features. These Bacillus strains isolated from peanut geocarposphere soil not only had high ability anti-Aspergillus parasiticus, but also promoted peanut growth. Therefore, these Bacillus strains were well adapted to peanut production in the ifeld as biological control agent with plant growth promoting rhizobacteria （PGPR） features.