sexual spore

sexual spore

[′sek·shə·wəl ′spȯr]
(biology)
A spore resulting from conjugation of gametes or nuclei of opposite sex.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Asexual spores produced from one parent are present in larger numbers in the atmosphere, more so than sexual spores which require genetic input from two parents.
During the winter, the pathogen survives on chickpea leaves and stems left behind in the field after harvest and forms sexual spores called "ascospores." The ascospores, in turn, can infect springtime chickpea plantings and sometimes wipe out entire crops.
But in addition to the asexual bodies, Trichoderma also have a form that produces microscopic sexual spores with genes that have recombined.