期刊文献+

氰烯菌酯对禾谷镰孢菌分生孢子萌发及菌丝生长的影响 预览 被引量:17

Effects of JS399-19 on Conidial Germination and Mycelial Growth of Fusarium graminearum
在线阅读 下载PDF
收藏 分享 导出
摘要 氰烯菌酯(2-氰基-3-氨基-3-苯基丙烯酸乙酯,JS399-19)是一种对禾谷镰孢菌Fusarium graminearum具有专化活性的新型杀菌剂。离体条件下,采用菌丝生长速率法测定了该药剂对禾谷镰孢菌抗性菌株和敏感菌株的生长抑制活性;同时采用孢子萌发法测定了其对禾谷镰孢菌分生孢子萌发的影响。结果表明,氰烯菌酯能够强烈地抑制禾谷镰孢菌敏感菌株菌丝的生长,EC50值分布在0.092~0.141μg/mL之间;并可降低敏感菌株分生孢子的萌发速率,以及影响其萌发的方式,使芽管从分生孢子基部和中间细胞萌发的比率增加;同时氰烯菌酯使敏感菌株分生孢子膨大、畸形,并使其芽管肿胀、扭曲,明显抑制其芽管的伸长生长;但对抗性菌株的抑制作用和致畸作用不明显。 JS399-19 (2-cyano-3-amino-3-phenylacrylic acetate) is a novel fungicide exhibiting specific activity against Fusarium graminearum. In vitro, the inhibitory activity of the fungicide against mycelial growth of both sensitive and resistant isolates of Fusarium graminearum was measured and the influence of the fungicide on conidial germination of Fusasium graminearum was determined. The results showed that JS399-19 could strongly inhibit the mycelial growth of a sensitive isolate of Fusarium graminearum with the ECs0 values 0. 092 - 0. 141μg/mL. JS399-19 decreased the speed of conidial germination of the sensitive isolate of Fusarium graminearum, strongly inhibited the germtube growth of the conidia, and affected the conidia germination by increasing the ratio of the tubes germinated from the basal and that from the middle parts of the conidia increased. Moreover, JS399-19 could cause abnormality of conidia and the tubes of the sensitive isolate, by inducing the conidia, and the tubes swollen and contort, respectively. However, the fungicide weakly affected the JS399-19-resistant isolates.
作者 陈雨 张文芝 周明国 CHEN Yu, ZHANG Wen-zhi, ZHOU Ming-guo ( Key Laboratory of Monitoring and Management of Plant Diseases and Insects, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China )
出处 《农药学学报》 CAS CSCD 2007年第3期 235-239,共5页 Chinese Journal of Pesticide Science
基金 国家“973”计划(2006CB101900) 国家科技支撑计划(2006BAE01A04-08) 国家“863”计划(2006AA10A211) 国家自然科学基金(30671048,30671384) 高等学校博士学科点专项科研基金(20050307028) 江苏省科技攻关项目(BG2006328).
关键词 氰烯菌酯 小麦赤霉病 禾谷镰孢菌 孢子萌发 致畸作用 JS199-19 wheat scab Fusarium graminearum conidial germination abnormal activity
作者简介 陈雨(1982-),男,安徽铜陵人,博士研究生,从事杀菌剂方面研究; 通讯作者(Author for correspondence):周明国(1958-),男,江苏南通人,教授,博士生导师,主要从事植物病害化学防治研究.联系电话:025-84395641;E-mail:mgzhou@njau.edu.cn
  • 相关文献

参考文献13

二级参考文献88

共引文献244

同被引文献190

引证文献17

二级引证文献75

投稿分析

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部 意见反馈