apospory


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Related to apospory: apogamy

apospory

[′ap·ə‚spȯr·ē]
(mycology)
Suppression of spore formation with development of the haploid (sexual) generation directly from the diploid (asexual) generation.
References in periodicals archive ?
91) suggested that apogamy and apospory would probably be associated with changes in chromosome number.
Apospory in leaf culture of staghorn fern Platycerium bifurcatum.
Efficient induction of apospory and apogamy in vitro in silver fern (Pityrogramma calomelanos L.
Apogamy ("without gametes") and apospory ("without spores") are, to an extent, misnomers, because in some instances gametes and spores are still produced in the life cycle when these phenomena occur; the chromosome complement of the apogamously tbrmed sporophyte and aposporously produced gametophyte is, however, sometimes other than the usual for these generations (for example, both gametophyte and sporophyte in the life cycle may be found to be diploid).