北方农业学报 ›› 2018, Vol. 46 ›› Issue (5): 89-92.doi: 10.3969/j.issn.2096-1197.2018.05.15

• 著者文摘 • 上一篇    下一篇

甘薯黑痣病菌的生物学特性研究

赵永强;徐振;杨冬静;孙厚俊;谢逸萍;张成玲   

  1. 徐州农业科学研究所农业部甘薯生物学与遗传育种重点实验室,江苏徐州221121
  • 收稿日期:2018-08-01 出版日期:2018-08-19 发布日期:2019-08-19
  • 作者简介:赵永强(1986-),男,硕士,主要从事植物病理学的研究工作。;通讯作者:张成玲(1983-),女,副研究员,博士,主要从事甘薯病虫害的研究工作。
  • 基金资助:
    江苏省自然科学基金项目(BK20140230);国家甘薯产业技术体系项目(CARS-10-B15)

Biological characteristics of Monilochaetes infuscans, the pathogen of sweetpotato scurf

ZHAO Yongqiang[1];XU Zhen[1];YANG Dongjing[1];SUN Houjun[1];XIE Yiping[1];ZHANG Chengling[1]   

  1. Xuzhou Institute of Agricuhural Sciences in Xuhuai Region of Jiangsu,Key Laboratol~y-of Biology and Genetic Improvement of Sweetpotato,Ministry of Agriculture,Xuzhou 221121,China
  • Received:2018-08-01 Online:2018-08-19 Published:2019-08-19

摘要: 为了明确甘薯黑痣病菌(Monilochaetes infuscans E11.et Halst.ex Harler)的生物学特性,为病害防治提供理论依据,从江苏徐州甘薯研究中心试验田采集甘薯黑痣病典型症状薯块,分离获得病原菌,然后利用液嫩培养测量菌丝嫩干重的方法开展了病菌生物学特性研究。结果表明:甘薯黑痣病菌对碳源的适应范围较广,菌丝生长的最适碳源是葡萄糖;仅可有效利用有机氯源,最适氯源是酵母粉;生长的最适宜pH值为8-9,温度为25-30℃;分生孢子致死温度为57℃,5 min,且光照对病原菌的生长无显著影响。

关键词: 甘薯黑痔病;甘薯毛链孢;菌丝干重;生物学特性

Abstract: Biological characteristics of M. infuscans, 1he causative agent of sweetpotato scurf', were studied to provide a theoretical basis for the disease prevention and treatment. Diseased sweetpotatoes were collected from a field in Xuzhou, Jiangsu province. A tissue separation method was used to isolate the pathogens, and biological characteristics in liquid medium were detemflned. The results showed that glucose and yeast were the optimum carbon and nitrogen resources for its mycelium growth in liquid media, with the most suitable pH 8-9. The optimum temperature for the pathogen growth was 25-30 ℃ and there was no significant effect of light on the growth of the pathogen in liquid media. The lethal temperature for the conidia was 57 ℃ for 5 minutes.

Key words: Sweetpotato scuff;Monilochaetes infuscans;Dry weight of mycelium;Biological characteristics

中图分类号: 

  • S432.1