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Megagametophyte


Ovule literally means "small egg." In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: The integuments forming its outer layer, the nucellus,...
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Aspects of the topic megagametophyte are discussed in the following places at Britannica. Assorted References heterospory in plants ( in plant (life form): Heterosporous life histories ) The spores produce two types of gametophytes: each microspore develops into a microgametophyte (male gametophyte), which ultimately produces male gametes (sperm), and each...
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Megagametophyte - Definition of Megagametophyte at Dictionary.com a free online ... In the seed plants, the megagametophyte generation is very small and lives its ...
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megagametophyte synonyms, megagametophyte antonyms. Information about megagametophyte in the ... seed plants, the megagametophyte generation is very small ...
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GardenWeb Shopping Organization Directory Events Calendar Hortiplex Glossary ... megagametophyte. megagametophyte. The female gametophyte, formed by vegetative ...
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Encyclopedia article about megagametophyte. Information about megagametophyte in the Columbia Encyclopedia, Computer Desktop Encyclopedia, computing dictionary.
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Fig. 10–12. Development of the five-nucleate megagametophyte. Potentilla nivea. ... megaspore nuclei (arrows) enter the megagametophyte tubes as they move into ...
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Male (staminate) pine cones are very small in size, ranging from 1 to 2 ... of the pollen tube, the megagametophyte (pollen grain) has developed to the ...
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Organogenesis from megagametophyte and zygotic embryo explants of the ... Keywords: cycad; gymnosperm; organogenesis; megagametophyte; in vitro; Dioon edule ...
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Lecture notes and slides providing an overview of conifer distribution, life cycle, and structure. ... The remaining megaspore divides to produce a Megagametophyte. ...
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9/22/2003: Lily Mature Megagametophyte ... Lily Mature Megagametophyte. Entire structure is Embryo. sac. Integument. Egg apparatus: ...
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... each ovule and develops into a multi-nucleated megagametophyte. ... The fusion of two sperm nuclei with megagametophyte nuclei is called double fertilization. ...
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