|本期目录/Table of Contents|

[1]赵美荣,李永春,张志超.1株拮抗禾谷镰刀菌生防菌株的筛选鉴定[J].江苏农业科学,2024,52(11):128-133.
 Zhao Meirong,et al.Screening and identification of a biocontrol strain against Fusarium graminearum[J].Jiangsu Agricultural Sciences,2024,52(11):128-133.
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1株拮抗禾谷镰刀菌生防菌株的筛选鉴定(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第52卷
期数:
2024年第11期
页码:
128-133
栏目:
植物保护
出版日期:
2024-06-05

文章信息/Info

Title:
Screening and identification of a biocontrol strain against Fusarium graminearum
作者:
赵美荣李永春张志超
赤峰学院化学与生命科学学院,内蒙古赤峰 024000
Author(s):
Zhao Meironget al
关键词:
禾谷镰刀菌生物防治贝莱斯芽孢杆菌抑菌作用生防菌株
Keywords:
-
分类号:
S432.4+4;S182
DOI:
-
文献标志码:
A
摘要:
为有效预防由禾谷镰刀菌引起的作物病害,提供生物防治新资源,筛选并鉴定可以有效抑制禾谷镰刀菌的生防菌。采用稀释平板法从小麦生境中分离菌株,以禾谷镰刀菌为指示菌,利用平板对峙法筛选生防菌株,通过形态学观察、菌株生理生化检测以及16S rDNA、gyrB基因序列分析对生防菌株进行鉴定,并检验其对5种植物病原真菌的抑菌效果,测定其抑菌范围。筛选出1株对禾谷镰刀菌具有明显抑菌作用的菌株B2-211022-01,抑菌率为5795%,其菌落形态、生理生化特征与芽孢杆菌相一致,通过序列同源性分析发现,该菌株的16S rDNA、gyrB基因序列与贝莱斯芽孢杆菌(Bacillus velezensis)同源性最高,分别为99.9%、100.0%,系统进化树构建结果显示,菌株B2-211022-01与贝莱斯芽孢杆菌属于一个分支,鉴定该菌株为贝莱斯芽孢杆菌,该菌株除了能抑制禾谷镰刀菌外,还对冬瓜枯萎病病菌、芍药灰霉病病菌、番茄灰霉病病菌、牡丹炭疽病病菌、黄瓜枯萎病病菌等5种供试植物病原真菌表现出一定的抑制作用,抑菌范围较广,在农业生产中具有一定的病害防治潜力。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2023-07-31
基金项目:内蒙古自治区高等学校科学研究项目(编号:NJZZ22150、NJZY21137);蒙东地区生物资源开发利用创新团队项目(编号:CFXYKYCXTD202008);赤峰学院一流学科建设项目(编号:CFXYYLXKB202102)。
作者简介:赵美荣(1981—),女,山东济宁人,博士,副教授,硕士生导师,主要从事生物资源开发与利用方面的研究。E-mail:738532543@qq.com。
更新日期/Last Update: 2024-06-05