Theory of Phyllotaxis. 2. Crystallographic Interpretation of the Interrelation between Lower and Superior Phyllotaxis Forms

Theory of Phyllotaxis. 2. Crystallographic Interpretation of the Interrelation between Lower and... Cross-opposite phyllotaxis forms are defined as superior with respect to the alternate ones and verticillate phyllotaxis forms as superior with respect to the opposite ones. Different phyllotaxis forms can be interpreted as a result of stretching of crystal-like structures of the embryo formed by dense packing of rudiments. Based on hypothetical concepts of the properties of plant rudiments and embryos, possible mechanisms of the formation of superior phyllotaxis forms from the lower ones have been analyzed. It was shown that the superior phyllotaxis forms can be considered as the results of additive summation of the lower forms. The theoretical conclusions are confirmed by the examples of polymorphic phyllotaxis in conspecific plants and by the facts of accidental splitting of superior phyllotaxis forms into the corresponding lower forms in nature and in experiment. The hexagonal-tetragonal type of phyllotaxis was theoretically predicted and found in nature. The mechanism underlying the formation of multiple forms of the helical phyllotaxis was considered. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Theory of Phyllotaxis. 2. Crystallographic Interpretation of the Interrelation between Lower and Superior Phyllotaxis Forms

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Publisher
Springer Journals
Copyright
Copyright © 2002 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1023/A:1021167028857
Publisher site
See Article on Publisher Site

Abstract

Cross-opposite phyllotaxis forms are defined as superior with respect to the alternate ones and verticillate phyllotaxis forms as superior with respect to the opposite ones. Different phyllotaxis forms can be interpreted as a result of stretching of crystal-like structures of the embryo formed by dense packing of rudiments. Based on hypothetical concepts of the properties of plant rudiments and embryos, possible mechanisms of the formation of superior phyllotaxis forms from the lower ones have been analyzed. It was shown that the superior phyllotaxis forms can be considered as the results of additive summation of the lower forms. The theoretical conclusions are confirmed by the examples of polymorphic phyllotaxis in conspecific plants and by the facts of accidental splitting of superior phyllotaxis forms into the corresponding lower forms in nature and in experiment. The hexagonal-tetragonal type of phyllotaxis was theoretically predicted and found in nature. The mechanism underlying the formation of multiple forms of the helical phyllotaxis was considered.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Oct 13, 2004

References

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