WebMegaspore definition, the larger of the two kinds of spores characteristically produced by seed plants and a few fern allies, developing into a female gametophyte. See more. WebMegasporangium: Structure and Functions Introduction. Megasporangium is part of the female reproductive system in plants. Alternatively, it can be called an... …
Megaspore plant anatomy Britannica
WebSole functioning Megaspore (n) Endosporic gametophyte (n) Diploid megasporangium (nucellus)One of the megaspores germinates and grows, attached to the nucellus and the sporophyte. 5. Highly ReducedGametophytes The job of the gametophyte remains the same, which is to produce gametes. Most seed plants make two archegonia, each with … Megaspores, also called macrospores, are a type of spore that is present in heterosporous plants. These plants have two spore types, megaspores and microspores. Generally speaking, the megaspore, or large spore, germinates into a female gametophyte, which produces egg cells. These are … See more In gymnosperms and flowering plants, the megaspore is produced inside the nucellus of the ovule. During megasporogenesis, a diploid precursor cell, the megasporocyte or megaspore mother cell, undergoes meiosis to … See more • Megasporangium • Microspore • Spore • Double fertilization See more After megasporogenesis, the megaspore develops into the female gametophyte (the embryo sac) in a process called megagametogenesis. … See more pleasant lake school michigan
Megaspore - an overview ScienceDirect Topics
Webfunction In plant: Heterosporous life histories Megasporangia (female sporangia) produce megasporocytes (megameiocytes) that yield megaspores. The sporangia may be borne in specialized structures such … WebMegaspores germinate into a female gametophyte, which produces female gametes or eggs. Megaspores are the larger of two spores produced by heterosporous plants. Some … WebThe particular type of megagametogenesis is a function of mitotic divisions, the formation of new cells, and the fusion of existing nuclei or cells. This sequence of events defines what … prince george metis housing society