Protein kinase activity in different stages of potato (Solanum tuberosum L.) microtuberization

In vitro culture was used to study morphogenetic aspects of the tuberization process under controlled conditions in potato (Solanum tuberosum L.) plants. This paper accurately defines four stages of tuber development and their correlation to external morphological characteristics and histological st...

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Bibliographic Details
Published in:Plant cell reports 1997-03, Vol.16 (6), p.426-429
Main Authors: Ulloa, R.M, Mac Intosh, G.C, Melchiorre, M, Mentaberry, A.N, Dallari, P, Moriconi, D.N, Tellez-Inon, M.T
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biotechnology
developmental stages
enzyme activity
Eukaryotic cell cultures
Fundamental and applied biological sciences. Psychology
histology
in vitro culture
Kinases
Methods. Procedures. Technologies
Miscellaneous
organogenesis
Peptides
plant anatomy
Plant cells and fungal cells
plant morphology
Plant physiology and development
Potatoes
Proteins
Solanum tuberosum
Tissue cultures, protoplasts
tubers
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Summary:In vitro culture was used to study morphogenetic aspects of the tuberization process under controlled conditions in potato (Solanum tuberosum L.) plants. This paper accurately defines four stages of tuber development and their correlation to external morphological characteristics and histological structures. Protein kinase activity, assayed in each stage using Histone IIAS as substrate, was differentially expressed during the tuberization process. Phosphorylation was maximum in the first stages of tuber formation. The incorporation of [32PO4-] to endogenous peptides containing serine/threonine amino acidic residues followed the same pattern that the protein kinase activity did.
ISSN:0721-7714
1432-203X
DOI:10.1007/BF01146787