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Что (кто) такое Macrospore - определение
A TYPE OF SPORE THAT IS PRESENT IN HETEROSPOROUS PLANTS; LARGE SPORE, GERMINATES INTO A FEMALE GAMETOPHYTE, WHICH PRODUCES EGG CELLS. THESE ARE FERTILIZED BY SPERM PRODUCED BY THE MALE GAMETOPHYTE DEVELOPING FROM THE MICROSPORE
Macrospore; Megaspores; Megasporocyte
Macrospore
·noun One of the specially large spores of certain flowerless plants, as Selaginella, ·etc.
Megaspore
Megaspores, also called macrospores, are a type of spore that is present in heterosporous plants. These plants have two spore types, megaspores and microspores.
megaspore
¦ noun Botany the larger of the two kinds of spores produced by some ferns. Compare with microspore.
Википедия
Megaspore
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 fertilized by sperm produced by the male gametophyte developing from the microspore. Heterosporous plants include seed plants (gymnosperms and flowering plants), water ferns (Salviniales), spikemosses (Selaginellaceae) and quillworts (Isoetaceae).
