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Post‐meiotic cytokinesis and pollen aperture pattern ontogeny: comparison of development in four species differing in aperture pattern
Author(s) -
Ressayre Adrienne,
Dreyer Leanne,
TrikiTeurtroy Sarah,
Forchioni Arlette,
Nadot Sophie
Publication year - 2005
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.3732/ajb.92.4.576
Subject(s) - callose , biology , microspore , pollen , aperture (computer memory) , botany , meiosis , cytokinesis , ontogeny , eudicots , genetics , stamen , taxonomy (biology) , cell division , physics , cell wall , gene , acoustics , cell
Pollen aperture patterns vary widely in angiosperms. An increasing number of studies indicate that aperture pattern ontogeny is correlated with the way in which cytokinesis that follows male meiosis is completed. The formation of the intersporal callose walls that isolate the microspores after meiosis was studied in four species with different aperture patterns (two monocots, Phormium tenax and Asphodelus albus , and two eudicots, Helleborus foetidus and Protea lepidocarpodendron ). The way in which post‐meiotic cytokinesis is performed differs between all four species, and variation in callose deposition appears to be linked to aperture pattern definition.