microgametophyte

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mi·cro·ga·me·to·phyte

(mī′krō-gə-mē′tə-fīt′)

The male gametophyte that arises from a microspore of a heterosporous plant. In seed plants, the microgametophyte is contained in the pollen grain.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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Noun

microgametophyte - the male gametophyte produced by a microspore

gametophyte - the gamete-bearing individual or phase in the life cycle of a plant having alternation of generations

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References in periodicals archive ?

Developmental bases for key innovations in the seed-plant microgametophyte. Trends in Plant Science 12(7): 317-326.

Rescuing Robert Brown--the origins of angio-ovuly in seed cones of conifers

In some species, this binucleate microgametophyte is the mature pollen.

Chapter 12: Sexual reproduction and inheritance

Postpollination effects on seed paternity: mechanisms in addition to microgametophyte competition operate in wild radish.

"Excess" flower production and selective fruit abortion: a model of potential benefits

The poorly understood events starting at pollination and terminating at fertilization involve complex and harmonious interactions between the microgametophyte and the pistil.

Pollen-pistil interactions result in reproductive isolation between Sorghum bicolor and divergent Sorghum species

There are not many reports on the size of microgametophyte populations within pistils of naturally pollinated flowers, but considerable interplant variation has been shown on occasions (Levin 1990, Niesenbaum 1994).

The role of colored accessory bracts in the reproductive biology of Lavandula stoechas

bears several pairs of sperm per microgametophyte. Up to 16 sperm have

Comparative development of the spermatozoids of cycads and Ginkgo biloba

Absence of the micropyle might have contributed to sterility since it is through the micropyle that the microgametophyte enters the megagametophyte.