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The action of tentoxin on membrane processes in plants
Author(s) -
Klotz Martin G.
Publication year - 1988
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1988.tb02021.x
Subject(s) - guard cell , phytotoxin , mode of action , biology , botany , ion transporter , chemistry , biochemistry , membrane , toxin
Tentoxin, a fungal phytotoxin, with its complex mode of action on plant membrane processes, is currently the best known example of a phytotoxic substance, with the literature going back more than 20 years and including a number of conflicting reports, which have not yet been adequately reconciled. This minireview covers all effects of tentoxin obtained at different levels of organization in several plant species (chloroplast structure and function, stomatal movements and guard cell protoplasts, leaf and root plasmalemma, ion uptake and translocation and internal ion concentrations) and suggests a number of targets for tentoxin which merit investigation. Besides the demonstration of the complexity of phytotoxin action and its possible relationship with other signal exchange mechanisms operating between microorganisms and plants, tentoxin may also provide a valuable tool for obtaining further information about the regulation of ion transport in plants.

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