福建农业学报 ›› 2018, Vol. 33 ›› Issue (2): 190-194.doi: 10.19303/j.issn.1008-0384.2018.02.015

• 植物保护 • 上一篇    

建兰茎腐病原菌尖孢镰刀菌的生物学特性研究

姚锦爱1,2, 黄鹏1, 陈峰1, 余德亿1,2   

  1. 1. 福建省农业科学院植物保护研究所, 福建 福州 350013;
    2. 福建省作物有害生物监测与治理重点实验室, 福建 福州 350012
  • 收稿日期:2017-11-28 修回日期:2018-01-08 发布日期:2019-03-29
  • 通讯作者: 余德亿(1972-),男,研究员,主要从事病虫害生物防治方面的研究(E-mail:yudy_2004@126.com) E-mail:yudy_2004@126.com
  • 作者简介:姚锦爱(1978-),女,副研究员,主要从事植病生防方面的研究(E-mail:yaoja@163.com)
  • 基金资助:
    福建省科技计划项目——省属公益类科研院所基本科研专项(2015R1024-6);福建省区域发展项目(2015N3010);福建省财政专项——福建省农业科学院科技创新团队建设项目(STIT2017-2-2)

Biological Characteristics of Fusarium oxysporum, a Pathogen of Stem Rot on Cymbidium ensifolium

YAO Jin-ai1,2, HUANG Peng1, CHEN Feng1, YU De-yi1,2   

  1. 1. Institute of Plant Protection, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350013, China;
    2. Fujian Key Laboratory for Monitoring and Integrated Management of Crop Pests, Fuzhou, Fujian 350012, China
  • Received:2017-11-28 Revised:2018-01-08 Published:2019-03-29

摘要: 为明确建兰茎腐病原菌尖孢镰刀菌的生物学特性,室内测定了温度、pH值、光照、碳氮源对病原菌生长和产孢量的影响,以及病原菌孢子的致死温度及时间。结果表明:该病原菌生长及产孢最适温度为25℃、pH值为7、光照条件为12 h光暗交替、碳源为a-乳糖、氮源为NaNO2,病原菌孢子的致死温度及时间为55℃水浴5 min。研究结果可为建兰茎腐病的有效防控措施的选择奠定基础。

关键词: 建兰, 茎腐病, 尖孢镰刀菌, 生物学特性

Abstract: Biological characteristics of pathogenic Fusarium oxysporum, which causes stem rot disease on Cymbidium ensiflium, were studied. Effects of temperature, pH, light, and carbon and nitrogen sources on the hyphal growth and sporulation of the pathogen were examined. In addition, the lethal temperature and time of F. oxysporum spores were determined. The results showed that the optimal conditions for the growth and sporulation of the pathogen were 25℃, pH 7, 12-h-L:12-h-D exposure, lactose monohydrate for carbon, and NaNO2 for nitrogen. The lethality of the spores was 5 min in 55℃ water. The study provided reference for the effective control of stem rot on C. ensifolium.

Key words: Cymbidium ensifolium, stem rot, Fusarium oxysporum, biological characteristics

中图分类号: 

  • S436.8