Influence of Fusicoccin on the Control of Cell Division by Auxins | Zendy

Armen Kurkdjian | Zendy; Jean-Jacques Leguay | Zendy; Jean Guern | Zendy

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Influence of Fusicoccin on the Control of Cell Division by Auxins

Author(s) -

Armen Kurkdjian,

Jean-Jacques Leguay,

Jean Guern

Publication year - 1979

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.64.6.1053

Subject(s) - fusicoccin , auxin , acer pseudoplatanus , cell division , intracellular , stimulation , extracellular , microbiology and biotechnology , biology , cell , chemistry , biochemistry , biophysics , botany , atpase , enzyme , gene , neuroscience

An indirect stimulation of cell division by fusicoccin is demonstrated. The distribution of 2,4-dichlorophenoxyacetic acid molecules between Acer pseudoplatanus cells and their culture medium is strongly modified by a fusicoccin treatment, through the extracellular acidification induced by the toxin. As a consequence, a stimulation of cell division is observed when the intracellular auxin concentration is sufficiently increased to reach the threshold control level (Leguay JJ, J Guern 1977 Plant Physiol 60: 265-270).Independently of this indirect action on cell division, the number of cells per cluster is decreased and the volume of the cells increased in fusicoccintreated cells which show a typical enlargement response.

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