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Planta. 1980 Jan;149(4):336-40. doi: 10.1007/BF00571167.

Anti-microtubular herbicides and fungicides affect Ca(2+) transport in plant mitochondria.

Planta

C Hertel, H Quader, D G Robinson, D Marmé

Affiliations

  1. Institut für Biologie III der Universität Freiburg, Schänzlestraße 1, D-7800, Freiburg, Federal Republic of Germany.

PMID: 24306369 DOI: 10.1007/BF00571167

Abstract

The herbicides amiprophosmethyl (APM) trifluralin, and oryzalin as well as the fungicides methylbenzimidazolyl carbamate (MBC), O-isopropyl N-phenyl carbamate (IPC), and chlorisopropyl N-phenyl carbamate (CIPC), which are known to cause the destruction of microtubules in vivo but do not interfere with tubulin polymerization in vitro, have been examined with respect to their ability to affect Ca(2+) transport in isolated cell organelles. In contrast to colchicine which has no effect on Ca(2+) transport in isolated mitochondrial and microsomal fractions, all of the substances investigated caused considerable reduction of ca(2+) net uptake into mitochondrial but not into microsomal fractions. This reduction has been shown to be due to an increase in passive Ca(2+) efflux. These results have been extrapolated to in vivo situations where they are postulated to act by raising cytoplasmic Ca(2+) levels.

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