Biochemistry and molecular biology of competence of plant cell differentiation and regeneration in vitro—a review

In spite of accumulation of voluminous literature on induction of cell division and differentiation in tissue culture, little information is available about the biochemical and molecular events that control it. In Brassica oleracea, exogenous supply of hormones, polyamines and certain amino acids le...

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Bibliographic Details
Published in:Current science (Bangalore) 1990-03, Vol.59 (6), p.308-311
Main Authors: Sethi, Urmil, Guha-Mukherjee, Sipra
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Amino acids
Biochemistry
Biological and medical sciences
Cell cycle
Cell division
Cellular differentiation
Cultured cells
Economic plant physiology
Fundamental and applied biological sciences. Psychology
Hormones
In vitro culture
Plant cells
Plant physiology and development
Plant tissues
Polyamines
REVIEW ARTICLE
Tissue cultures, protoplasts
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Summary:In spite of accumulation of voluminous literature on induction of cell division and differentiation in tissue culture, little information is available about the biochemical and molecular events that control it. In Brassica oleracea, exogenous supply of hormones, polyamines and certain amino acids lead to vigorous proliferation, whereas addition of inhibitors to inhibit polyamine or ethylene biosynthesis, transcription and translation, or abscisic acid, results in differentiation. Red/far-red light also induces proliferation or differentiation. There are also evidences to suggest that the phosphoinositide intracellular signalling system to generate second messengers, well established in the animal kingdom, also exists in plants. Some constituents of this cycle have been identified. It appears that through control of the cell cycle by arresting cells at G1 or G2 phases, it is possible to ensure differentiation in plant tissue culture.
ISSN:0011-3891