Post-meiotic cytokinesis and pollen aperture pattern ontogeny: comparison of development in four species differing in aperture pattern

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 meios...

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Published inAmerican journal of botany Vol. 92; no. 4; pp. 576 - 583
Main Authors Ressayre, Adrienne, Dreyer, Leanne, Triki-Teurtroy, Sarah, Forchioni, Arlette, Nadot, Sophie
Format Journal Article
LanguageEnglish
Published United States Botanical Society of America 01.04.2005
Botanical Society of America, Inc
Subjects
Angiosperms
aperture pattern ontogeny
Asphodelus
Botanics
Botany
callose
Cell division
Cell walls
Comparative analysis
Cytokinesis
Development and Morphogenesis
eudicot
Helleborus foetidus
Life Sciences
Meiosis
meiosis, monocot
Microspores
Microsporocytes
Ontogeny
Phormium tenax
Plant cells
plant development
Plants
Pollen
Protea
Vegetal Biology
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Summary: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.
Bibliography:http://www.amjbot.org/
A. R. received a financial support from the Société de Secours des Amis des Sciences and the Singer‐Polignac Foundation.
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ISSN:0002-9122
1537-2197
DOI:10.3732/ajb.92.4.576