摘要
用透射电子显微镜观察了春、夏、秋、冬四个季节的沙棘根瘤,以及瘤瓣上、中、下三个部位。结果表明,不同季节,不同部位的瘤瓣内,根瘤内生菌有7种不同形态。即侵染菌丝体、繁殖菌丝体、营养菌丝体、春孢子及春孢子囊、泡囊,冬孢子及冬孢子囊和类菌体。在多年生珊瑚状的根瘤中,它们的世代交替是:春夏季以侵染菌丝、繁殖菌丝、营养菌丝、春孢子囊及春孢子、泡囊为主;秋冬季以衰退的营养菌丝、衰老泡囊、冬孢子囊和冬孢子、类菌体为主。冬孢子和类菌体是休眠体。
The root nodules of H. rhamnoides and the upper, middle and lower parts of the nodule, in the four seasons of a.year, were observed under transmission electron microscope. And the findings are that the root nodule endophyte has seven shapes in different parts of the nodule in different seasons: infectious mycelium, reproduceable mycelium, vegetative mycelium, spring sporangium and spring spore, vesicle, winter spore and winter sporangium, and bacteroid-like cell. In the perennial coralloid root nodules, their alternation of generations is infectious mycelium, reproduceable mycelium, vegetative mycelium, spring sporangium and spring spore, and vesicle in spring and summer; and vegetative mycelium, decying vesicles, winter sporangium and winter spore and bacteroid-like cell in autumn and winter. Winter spore and bacteroid-like cell are dormant body.
出处
《微生物学报》
CAS
CSCD
北大核心
1996年第5期389-393,共5页
Acta Microbiologica Sinica
