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(jié)構(gòu)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(gè)或幾個(gè)芽體，芽體進(jìn)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(zhǎng)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(diǎn)。
• The process from the spore germination and protonema growth to development of the gametophyte are illustrated and taken microphotographs.
  在光學(xué)顯微鏡下對(duì)配子體發(fā)生進(jìn)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(dú)有的特征，也是該類群區(qū)別于其它類群的一個(gè)顯著特點(diǎn)。
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