|本期目录/Table of Contents|

[1]何俊烺,何景超,华宏伟,等.1株草地贪夜蛾寄生真菌的分离鉴定及活性测试[J].江苏农业科学,2022,50(8):32-36.
 He Junlang,et al.Identification of a strain of endoparasitic fungus in Spodoptera frugiperda (Lepidoptera:Noctuidae) and its activity test[J].Jiangsu Agricultural Sciences,2022,50(8):32-36.
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第50卷
期数:
2022年第8期
页码:
32-36
栏目:
“草地贪夜蛾防控”专题
出版日期:
2022-04-20

文章信息/Info

Title:
Identification of a strain of endoparasitic fungus in Spodoptera frugiperda (Lepidoptera:Noctuidae) and its activity test
作者:
何俊烺 何景超 华宏伟 周易 程东美
仲恺农业工程学院,广东广州 510225
Author(s):
He Junlanget al
关键词:
草地贪夜蛾病原真菌莱氏绿僵菌致病力
Keywords:
-
分类号:
S476.12
DOI:
-
文献标志码:
A
摘要:
为探明在玉米地被真菌感染的草地贪夜蛾(Spodoptera frugiperda)幼虫的致病菌种,丰富草地贪夜蛾病原真菌资源,为草地贪夜蛾生物防治研究以及生防菌剂的开发利用提供材料,对采集到的草地贪夜蛾僵虫体进行常规分离纯化,通过形态学和核糖体内转录区间(ITS-rDNA)序列分析对分离得到的病原真菌进行鉴定,并采用浸虫法研究病原真菌对2龄草地贪夜蛾幼虫的室内活性。经鉴定,从感病的草地贪夜蛾幼虫上分离获得的病原真菌菌株ZHKUMR1为莱氏绿僵菌(Metarhizium rileyi)。菌株ZHKUMR1接种草地贪夜蛾2龄虫后,幼虫的致死中浓度(LC50)为4.24×105 CFU/mL,最适致病浓度为5×108 CFU/mL,接菌9 d后幼虫半数致死时间(LT50)为4.39 d,累计校正死亡率达97.62%。自玉米地采集的草地贪夜蛾幼虫上分离得到的病原真菌为莱氏绿僵菌,该菌株对草地贪夜蛾幼虫具有高致病性,可作为对草地贪夜蛾的生防菌剂开发应用。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2021-07-20
基金项目:广东省重点领域研发计划(编号:2020B020224002);广东省现代农业产业共性关键技术研发创新团队项目(编号:2020KJ133)。
作者简介:何俊烺(1995—),男,广东佛山人,硕士研究生,从事植物保护研究。E-mail:546201310@qq.com。
通信作者:程东美,博士,副教授,从事植物保护研究。E-mail:zkcdm@163.com。
更新日期/Last Update: 2022-04-20