protonema

英 /ˌprəʊtə'ni:mə/ 美 /ˌproʊtə'nimə/

中文释义

n.原丝体，丝状体

Protonema ( pl . protonemata ) The young bryophyte gametophyte that develops following spore germination.

苔藓植物中直接由孢子萌发形成的结构称为原丝体.
The production of massive protonema immediately follows and then caulonema, chloronema and secondary rhizoides.

孢子萌发后直接产生块状原丝体;块状原丝体上产生轴丝体、绿丝体和次生假根.
The process and protonema growth to development of the gametophyte are illustrated and taken microphotographs.

在光学显微镜下对配子体发生进行了观察、描绘和照相.