Inhibition of cytokinesis in the microspores of Tradescantia bracteata Small, by caffeine

In isolated stamens of Tradescantia bracteata planted in nutrient medium cytokinesis in microspores was inhibited by caffeine and binucleate pollen grains were formed. Both the nuclei were of similar shape, size and structure and did not undergo further changes. It seems that separation of the polar...

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Bibliographic Details
Main Authors: M. Charzyńska, I. Pannenko
Format: Article
Language:English
Published: Polish Botanical Society 2015-01-01
Series:Acta Societatis Botanicorum Poloniae
Online Access:https://pbsociety.org.pl/journals/index.php/asbp/article/view/4996
Description
Summary:In isolated stamens of Tradescantia bracteata planted in nutrient medium cytokinesis in microspores was inhibited by caffeine and binucleate pollen grains were formed. Both the nuclei were of similar shape, size and structure and did not undergo further changes. It seems that separation of the polarly differentiated microspore protoplast by a cell wall is a necessary condition for differentiation of the gametophyte nuclei to generative and vegetative.
ISSN:2083-9480