安徽农业大学学报2012，Vol.39Issue(3)：470-473,4.
水稻稻曲病菌生长与侵染影响因子的研究
Influencing factors on the growth and germination of Ustilaginoidea virens
摘要
Abstract
Effects of environmental conditions on the mycelial growth, conidial germination of Ustilagi-noidea virens were studied, and the effects of host growth stage on pathogen infection were also examined. The results showed that temperature ranging from 10'C to 30 °C was available for the mycelial growth, with the optimum of 28'C; this pathogen could possess the ability to grow from pH 3 to pH 10, while the optimum was pH 6-pH 7. The suitable temperature for spores germination was 281. The best carbon and nitrogen source were sucrose and L-asparagus gate amide, and the optimal concentrations were 2% and 0.2%-0.3%, respectively; the best inorganic source was the combination of disodium hydrogen phosphate and magnesium sulfate. The spores release was influenced by climatic conditions, mainly at night in the sunny days and all day in the rainy days. The main infection period of pathogen was at early booting and mid-booting of rice.关键词
稻曲病/稻曲病菌/影响因子Key words
rice false smut/ Ustilaginoidea virens/ influence factors分类
农业科技引用本文复制引用
王丽梅,陈莉,丁克坚,孙众..水稻稻曲病菌生长与侵染影响因子的研究[J].安徽农业大学学报,2012,39(3):470-473,4.基金项目
国家科技支撑计划课题项目(2006BAD02A06)资助. （2006BAD02A06）
