Sporophyte-gametophyte interactions between anther and male gametophyte in petunia

Sporophyte-gametophyte interactions between anther and male gametophyte in petunia Sporophyte-gametophyte interactions between anther and male gametophyte were investigated in two (fertile and sterile) clones of petunia (Petunia hybrida L.) with different reproductive strategies. Structural and functional reorganization of sporophyte tissues in the developing anther of fertile clone is closely coordinated with each of the successive stages of male gametophyte development (from meiosis to the formation of binuclear pollen) and comprises not only destruction of tapetum and three middle layers of the wall but also an activation of gas exchange and a rise in the content of sugars (sucrose, fructose, and glucose). In sterile clone, degradation of tapetum and anomalies in the development of sporogenic tissue were simultaneously observed in the prophase of meiosis. The death of microsporocytes and degeneration of tapetum were accompanied by a decrease in the level of sucrose delivered to the anther tissues and changes in the ratio between sucrose and hexoses in favor of glucose. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Sporophyte-gametophyte interactions between anther and male gametophyte in petunia

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2009 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Plant Sciences ; Plant Physiology
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1134/S1021443709030133
Publisher site
See Article on Publisher Site

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