摘要
培养 1个月的大豆疫霉菌卵孢子在水琼脂或土壤薄膜上均可萌发 ,在水琼脂上萌发只形成芽管 ,在土壤薄膜上萌发形成芽管和孢子囊。卵孢子在两种基质上萌发最适温度为 18- 2 4℃。光照刺激卵孢子萌发 ,抑制孢子囊的形成。卵孢子萌发不需外源养分。不同菌株卵孢子萌发率差异较大。
Oospore of Phytophthora sojae can germinate on water agar(WA) or on thin coat of soil by culturing one month. On WA it only produced germ tubes. On the coat of soil it germinated germ tubes and sporangias. The optimum temperature for oospore germination was 18-24℃. Light stimulated germination of oospores, but restrained them to produce sporagium. Germination of oospores don't need exotexix nutrient. Oospore germination differed significantly among different isolates.
出处
《大豆科学》
CAS
CSCD
北大核心
2002年第2期101-105,共5页
Soybean Science
基金
黑龙江省科委"九五"重大科技攻关项目 (G97B2 -3 )
关键词
大豆
疫霉菌
卵孢子
萌发条件
疫病
Phytophthora sojae
Oopspore
Germinating condition
