protonemata

常見例句

Protonema (pl. protonemata) The young bryophyte gametophyte that develops following spore germination.
原絲體：苔蘚植物中直接由孢子萌發(fā)形成的結構稱為原絲體。
The mature gametophyte plants develop from buds that form at several points along the protonema.
原絲體上形成1個或幾個芽體，芽體進一步發(fā)育為配子體。
Protonema The green, filamentous growth that arises from spore germination in liverworts and mosses and eventually gives rise to a mature gametophyte.
由葉苔或苔蘚的孢子萌芽發(fā)展而成的綠色絲狀生長物,最終發(fā)展成配子體。
Describing the characters and developmental features of spore germination and protonema development of moss applied in this research by microscopy.
采用顯微觀察的方法具體描述了蘚類植物孢子萌發(fā)與原絲體發(fā)育的特征及發(fā)育特點。
The process from the spore germination and protonema growth to development of the gametophyte are illustrated and taken microphotographs.
在光學顯微鏡下對配子體發(fā)生進行了觀察、描繪和照相。
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，孢子萌發(fā)后的原絲體發(fā)育階段是蘚類植物所獨有的特征，也是該類群區(qū)別于其它類群的一個顯著特點。