[1]董晓雪,彭国袁,常卓凡,等.西藏土壤芽孢杆菌的分离鉴定及生防促生菌筛选[J].江苏农业科学,2023,51(23):114-123.
 Dong Xiaoxue,et al.Isolation and identification of Bacillus in soils and screening of biocontrol growth-promoting bacteria in Tibet[J].Jiangsu Agricultural Sciences,2023,51(23):114-123.
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西藏土壤芽孢杆菌的分离鉴定及生防促生菌筛选()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第51卷
期数:
2023年第23期
页码:
114-123
栏目:
植物保护
出版日期:
2023-12-05

文章信息/Info

Title:
Isolation and identification of Bacillus in soils and screening of biocontrol growth-promoting bacteria in Tibet
作者:
董晓雪1彭国袁1常卓凡1于文娟2旺姆1
1.西藏农牧学院植物科学学院,西藏林芝 860000; 2.四川省农业科学院植物保护研究所,四川成都 610000
Author(s):
Dong Xiaoxueet al
关键词:
芽孢杆菌分离鉴定生防促生青稞网斑病
Keywords:
-
分类号:
S182
DOI:
-
文献标志码:
A
摘要:
青稞是西藏人民的主要粮食作物,在种植生长过程中有多种病害对其产生危害,直接影响青稞的产量和质量。本研究针对如何绿色防治西藏青稞网斑病立题,以期找到对某一种或几种青稞病害高效的生防菌株,为青稞网斑病防治及生产实际提供材料。采集林芝市鲁朗镇扎西岗村的青稞网斑病植株活体样本,采用组织分离法和离体培养法获得青稞网斑菌菌株XZQKWB。从西藏自治区不同采样点采集根际土壤,采用温度筛选法和平板涂布法分离得到11 718株芽孢杆菌。以分离得到的芽孢杆菌为材料,以6种病原菌为靶标,共筛选得到 14 株对 6 种病原菌均具有不同程度的抑制效果的芽孢杆菌:91-5、92-1、92-10、92-3、27-36、32-69、94-19、44-36、5-142、58-59、58-7、59-60、63-35和 66-53。结合形态特征、生理生化特征、16S rDNA 序列分析,初步鉴定 58-7、59-60、27-36、63-35、44-36、58-59 和66-53 为阿氏芽孢杆菌(Priestia aryabhattai);菌株 94-19 和 32-69 为沙福芽孢杆菌(Bacillus safensis);菌株 92-10 和 92-3 为萎缩芽孢杆菌(Bacillus atrophaeus);菌株 91-5 为贝莱斯芽孢杆菌(Bacillus velezensis);菌株 92-1和 5-142 为枯草芽孢杆菌(Bacillus subtilis)。对14株菌进行生防盆栽和促生盆栽试验,结果表明菌株 92-10 兼具溶无机磷能力、解钾能力、固氮能力等促生特性,对藏青 2000 种子的根长、芽长、株高、地上部鲜质量都有明显的促生效果,在平皿对峙试验中对6个病原菌的抑制率均达到50%以上,在青稞网斑病的盆栽防治试验中防效达到 76.5%。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2023-02-25
基金项目:西藏自治区重点研发及转化项目(编号:XZ202001ZY0026N);研究生教育创新与学科建设(藏财预指2022-1号)(编号:YJS2022-44)。
作者简介:董晓雪(1999—),女,山西晋中人,硕士研究生,从事资源利用与植物保护研究。E-mail:2687224615@qq.com。
通信作者:旺姆,博士,教授,从事青稞遗传育种研究。E-mail:wm1252354663@163.com。
更新日期/Last Update: 2023-12-05