Structural Changes of Cell Surface in Callus of Fagopyrum esculentum Moench. during Induction of Morphogenesis

Structural Changes of Cell Surface in Callus of Fagopyrum esculentum Moench. during Induction of... Scanning electron microscopy was used to study the structure of callus of Fagopyrum esculentum Moench. during induction of morphogenesis. It was found that transferring of callus on the medium lacking growth regulators induced several simultaneous developmental programs: embryoidogenesis, rhizogenesis, and gemmogenesis. The program of embryoidogenesis prevailed over the others. Various morphological structures were found to appear on the callus surface in the following order: trichome (on the 2nd day), roots (the 2nd or 3rd day), embryoids (the 6th to 8th day), and buds (the 10th to 14th day). It was shown that morphogenesis is preceded by loosening of the callus surface and by appearance of the secret on it. Possible functions of secretion in the induction of the observed processes are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Plant Physiology Springer Journals

Structural Changes of Cell Surface in Callus of Fagopyrum esculentum Moench. during Induction of Morphogenesis

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Publisher
Nauka/Interperiodica
Copyright
Copyright © 2005 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Plant Sciences; Plant Physiology
ISSN
1021-4437
eISSN
1608-3407
D.O.I.
10.1007/s11183-005-0057-y
Publisher site
See Article on Publisher Site

Abstract

Scanning electron microscopy was used to study the structure of callus of Fagopyrum esculentum Moench. during induction of morphogenesis. It was found that transferring of callus on the medium lacking growth regulators induced several simultaneous developmental programs: embryoidogenesis, rhizogenesis, and gemmogenesis. The program of embryoidogenesis prevailed over the others. Various morphological structures were found to appear on the callus surface in the following order: trichome (on the 2nd day), roots (the 2nd or 3rd day), embryoids (the 6th to 8th day), and buds (the 10th to 14th day). It was shown that morphogenesis is preceded by loosening of the callus surface and by appearance of the secret on it. Possible functions of secretion in the induction of the observed processes are discussed.

Journal

Russian Journal of Plant PhysiologySpringer Journals

Published: May 19, 2005

References

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