甘薯黑痣病菌的生物学特性研究

doi:10.3969/j.issn.2096-1197.2018.05.15

Journal of Northern Agriculture ›› 2018, Vol. 46 ›› Issue (5): 89-92.doi: 10.3969/j.issn.2096-1197.2018.05.15

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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]

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

Abstract

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

CLC Number:

S432.1

ZHAO Yongqiang,XU Zhen,YANG Dongjing, SUN Houjun,XIE Yiping,ZHANG Chengling （Xuzhou Institute of Agricuhural Sciences in Xuhuai Region of Jiangsu, Key Laboratory of Biology and Genetic Improvement of Sweetpotato, Ministry of Agriculture,Xuzhou 221121, China）. Biological characteristics of Monilochaetes infuscans, the pathogen of sweetpotato scurf[J].Journal of Northern Agriculture, 2018, 46(5): 89-92.

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https://journal30.magtechjournal.com/bfnyxb/EN/Y2018/V46/I5/89

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Biological characteristics of Monilochaetes infuscans, the pathogen of sweetpotato scurf

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