protonemata

常见例句

Protonema (pl. protonemata) The young bryophyte gametophyte that develops following spore germination.
原丝体：苔藓植物中直接由孢子萌发形成的结构称为原丝体。
The mature gametophyte plants develop from buds that form at several points along the protonema.
原丝体上形成1个或几个芽体，芽体进一步发育为配子体。
Protonema The green, filamentous growth that arises from spore germination in liverworts and mosses and eventually gives rise to a mature gametophyte.
由叶苔或苔藓的孢子萌芽发展而成的绿色丝状生长物,最终发展成配子体。
Describing the characters and developmental features of spore germination and protonema development of moss applied in this research by microscopy.
采用显微观察的方法具体描述了藓类植物孢子萌发与原丝体发育的特征及发育特点。
The process from the spore germination 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。
In plant kingdom, having a protonema stage after spore germination is a specific character of moss and a marked difference compared with other plant group.
在植物界，孢子萌发后的原丝体发育阶段是藓类植物所独有的特征，也是该类群区别于其它类群的一个显著特点。