摘要
沙田柚果腐病是近年为害沙田柚柚果的主要病害。根据病原菌的形态,结合分子鉴定的方法,将该病的致病菌鉴定为可可毛色二孢(Lasiodiplodia theobromae)。该病菌生长的最适温度为25～30℃;可生长的pH范围为4～11;该菌能有效利用蔗糖、葡萄糖、可溶性淀粉等7种供试碳源,以果糖最好;能利用甘氨酸、亮氨酸等8种供试氮源,以甘氨酸最适,无法利用尿素。
Fruit rot disease was one of the most important diseases harming pomelo in recent years. The pathogen was identified as Lasiodiplodia theobromae according to the morphology and sequence analysis of the internal transcribed spacer region of the ribosomal DNA （ITS）. The optimum temperature for mycelial growth was 25-30℃. The pathogen could grow under pH 4-11. Fructose and glycine could be used as better carbon and nitrogen sources for growth of L. theobromae, respectively. Urea cannot be effectively used.
出处
《中国农学通报》
CSCD
2013年第22期125-128,共4页
Chinese Agricultural Science Bulletin
基金
广东省大学生创新实验项目"沙田柚果腐病的病原鉴定及生物学特性研究"(1134711017)
关键词
沙田柚
可可毛色二孢
果腐病
生物学特性
pomelo
Lasiodiplodia theobroma
fruit rot disease
biological characteristics
