西南地区玉米灰斑病菌生物学特性研究

S855.1; 为了进一步防治玉米灰斑病奠定基础,对西南地区玉蜀黍尾孢菌的生物学特性进行了初步研究.结果表明,该病菌生长温度为10 ～35℃,最适生长温度为20～25℃;病原菌对酸碱度的适应范围较广,在pH 4 -11都能生长,以pH 5 ～7为最适pH值;分生孢子萌发温度为5 ～35℃,最适温度为20 ～25℃;光照对菌丝和孢子萌发无显著影响;病原菌最适碳源为葡萄糖,最适氮源为酵母青,致死温度为55℃(10 min)....

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Published in西南农业学报 Vol. 25; no. 2; pp. 494 - 497
Main Author 崔丽娜 张小飞 邹成佳 李晓 杨晓蓉 罗怀海
Format Journal Article
LanguageChinese
Published 四川省农业科学院植保所,四川成都,610066%四川省农业厅植保站,四川成都,610041 2012
Subjects
玉米
玉蜀黍尾孢菌
生物学特性
玉蜀黍尾孢菌
生物学特性
玉米
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ISSN1001-4829
DOI10.3969/j.issn.1001-4829.2012.02.028

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Summary:S855.1; 为了进一步防治玉米灰斑病奠定基础,对西南地区玉蜀黍尾孢菌的生物学特性进行了初步研究.结果表明,该病菌生长温度为10 ～35℃,最适生长温度为20～25℃;病原菌对酸碱度的适应范围较广,在pH 4 -11都能生长,以pH 5 ～7为最适pH值;分生孢子萌发温度为5 ～35℃,最适温度为20 ～25℃;光照对菌丝和孢子萌发无显著影响;病原菌最适碳源为葡萄糖,最适氮源为酵母青,致死温度为55℃(10 min).
Bibliography:Maize; Cercospora zeae-maydis; Biological characters
CUI Li-na,ZHANG Xiao-fei,ZOU Cheng-jia,LI Xiao,YANG Xiao-rong,LUO Huai-hai （1.Institute of Plant Protection,Sichuan Academy of Agricultural Sciences,Sichuan Chengdu 610066,China;2.Plant Protection Station,Department of Agriculture of Sichuan,Sichuan Chengdu 610041 China）
51-1213/S
Some biological characters of Cercospora zeae-maydis were studied in this experiment.The results showed that the pathogen could grow and develop between 10 and 35 ℃,and the optimum temperature was between 20 and 25 ℃.For growth of the pathogen,there had no strict pH requirement： the favorable pH was 4-11 and the optimum pH was 5-7.For germination of conidia,the favorable temperature for conidial germination was between 5 and 35 ℃ and the optimum temperature was 20-25 ℃.Effect of light was not obvious on mycelial growth and conidial germination.The optimum carbon source was glucose,and the optimum nitrogen source wa s yeast extract.The lethal temperature for pathogen was at 55 ℃ for 1
ISSN:1001-4829
DOI:10.3969/j.issn.1001-4829.2012.02.028