microgamete


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microgamete

[¦mī·krō′ga‚mēt]
(biology)
The smaller, or male gamete produced by heterogametic species.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Host cell infected with three parasites (arrowhead); 5, microgamont (MIC), macrogamont (Ma) and mature meronts (Me); 6, mature microgamonts (MM), attached to the underlying epithelium via a stalk-like structure (arrowhead), shedding microgametes, note disappearance of the parasite membrane and fragmentation of its surface; 7, macrogamontes (Ma) with wall-forming bodies (WF).
Others undergo multiple fission inside cells, forming microgametocytes containing 16 nonflagellated microgametes. Microgametes rupture from the microgametocyte and penetrate macrogametes forming a zygote (fusion of gametes).
Extracellular macrogametes and microgametes may be seen after erythrocytic lysis.
The organism exits in nature in many forms: macro- and microgametes, the oocyte (which releases sporozoites), the tissue cyst, which contains and may release bradyzoite, and tachyzoite.
Microgametes 72-77 [micro]m long and 37-40 [micro]m wide, formed by depauperating divisions (sometimes called degenerate forms in the old literature), presumably belonging to C.
Eukaryotic sex can take place between mating types in isogametic species which lack the differentiation between microgametes or sperm and macrogametes or eggs, the distinction which defines male and female (or their functions in hermaphrodites).
microgametogenesis: Production of microgametes (small gametes) from microspores in the anthers of flowering plants.