Basic principles of terminal flower formation

Basic principles of terminal flower formation Studies of inflorescences of the mutants bractea and terminal flower1 and double mutant bra tfl1 of Arabidopsis thaliana (L.) Heynh. have shown that the presence of a developed leaf in the node preceding the terminal flower is a necessary condition for the formation of the terminal flower perianth. This means that perianth cannot develop in an abracteose inflorescence of terminal flower. The second necessary condition for the terminal flower formation is a sufficient level of expression of the genes responsible for floral morphogenesis. Combination of these two conditions suffices for the development of a terminal flower with perianth. Since the general principles of organization are common for the majority of Angiosperms, it can be stated that if the abracteose inflorescence is terminated by a flower with perianth, this is a consequence of displacement of the lateral flower into the terminal position. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Basic principles of terminal flower formation

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2005 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Developmental Biology; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1007/s11174-005-0012-z
Publisher site
See Article on Publisher Site

Abstract

Studies of inflorescences of the mutants bractea and terminal flower1 and double mutant bra tfl1 of Arabidopsis thaliana (L.) Heynh. have shown that the presence of a developed leaf in the node preceding the terminal flower is a necessary condition for the formation of the terminal flower perianth. This means that perianth cannot develop in an abracteose inflorescence of terminal flower. The second necessary condition for the terminal flower formation is a sufficient level of expression of the genes responsible for floral morphogenesis. Combination of these two conditions suffices for the development of a terminal flower with perianth. Since the general principles of organization are common for the majority of Angiosperms, it can be stated that if the abracteose inflorescence is terminated by a flower with perianth, this is a consequence of displacement of the lateral flower into the terminal position.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Apr 27, 2005

References

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