单词 prothallus 释义 BETA

Examples ofprothallus

Dictionary> Examples ofprothallusprothallusisn’t in the Cambridge Dictionary yet. You can help!Add a definitionIf conditions are right, a spore will germinate and grow into a rather inconspicuous plant body called aprothallus.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Theprothallusis red to whitish in the inner part, red the in outer part.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.This eventually results in the formation of a notch at the anterior edge of theprothallus, giving it a roughly heart-shaped appearance (cordate).FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.The haploidprothallusdoes not resemble the sporophyte, and as such ferns and their allies have a heteromorphic alternation of generations.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.One of the cells at the top margin of theprothallusthen divides obliquely when it has 5, 10, or more cells across its width.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Young fern sporelings can often be found with theprothallusgametophyte still attached at the base of their fronds.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.The gametophyte of some non-thallophyte plants -- clubmosses, horsetails, and ferns is termedprothallus.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.Rhizoids anchor theprothallusto the soil.FromWikipediaThis example is from Wikipedia and may be reused under a CC BY-SA license.

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