oogamous


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oogamous

[ō′äg·ə·məs]
(biology)
Of sexual reproduction, characterized by fusion of a motile sperm with an oogamete.
References in periodicals archive ?
In addition to the active digestion of male organelle nuclei by the nuclease, the difference in size between male and female gametes in anisogamous and oogamous organisms indicates that the contribution to the progeny of male organellar genomes (DNA) is small, while that of female gametes is large, suggesting that anisogamy and oogamy reinforce maternal inheritance.
In summary, the last common ancestor of stoneworts and embryophytes can tentatively be proposed to have possessed a multicellular, oogamous, haploid gametophyte that did not produce zoospores (absent in Chara and embryophytes, present in Coleochaete).
A single-celled oogonium (not a multicellular archegonium, as found in embryophytes) surrounds the single egg cell; however, the nonmotile female gamete, and oogamous reproduction, are similar to embryophytes.