Effect of the phytotoxins tentoxin,HmT-toxin,and HV-toxin on K+ efflux from unilamellar liposomes |
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| Institution: | 1. Institut für Botanik, Universität Würzburg, Mittlerer Dallenbergweg 64, D-8700 Würzburg, FRG;2. Institut für Botanik, Technische Hochschule, Schnittspahnstr. 3–5, D-6100 Darmstadt F.R.G.;3. Department of Plant Pathology, University of Missouri-Columbia, 108 Waters Hall, Columbia, MO 65211 U.S.A.;1. Department of Aquaculture, Institute of Aquaculture and Environmental Safety, Faculty of Agricultural and Environmental Sciences, Szent István University, 1. Páter Károly St., H-2100, Gödöll?, Hungary;2. Department of Environmental Safety and Ecotoxicology, Institute of Aquaculture and Environmental Safety, Faculty of Agricultural and Environmental Sciences, Szent István University, 1. Páter Károly St., H-2100, Gödöll?, Hungary;1. Food, Feed and Veterinary Public Health (FFVPH), Agricultural Research Council-Onderstepoort Veterinary Institute (ARC-OVI), Private Bag X05, Onderstepoort, 0110, South Africa;2. Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Private Bag X04, Onderstepoort, 0110, South Africa;3. Molecular Epidemiology and Diagnostics (MED), Agricultural Research Council-Onderstepoort Veterinary Institute (ARC-OVI), Private Bag X05, Onderstepoort, 0110, South Africa;1. ARC-Grain Crops Institute, Private Bag X1251, Potchefstroom, 2520, South Africa;2. Department of Plant Sciences, University of the Free State, P.O. Box 339, Bloemfontein, 9300, South Africa;3. Unit for Environmental Science and Management, Faculty of Natural Sciences, North-West University, Private Bag X6001, Potchefstroom, 2520, South Africa;1. National Research Tomsk Polytechnic University, Lenina 30, Tomsk 634050, Russia;2. Omsk State Technical University, Mira 11, Omsk 644050, Russia;1. College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518055, PR China;2. College of Physics and Energy, Shenzhen University, Shenzhen 518055, PR China;3. Department of Materials Science and Engineering, South University of Science and Technology, Shenzhen 518055, PR China |
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| Abstract: | Unilamellar liposomes containing 1 mM K+-phosphate were prepared from soybean (Glycine max Merr.) lipids. The non-host-specific tentoxin induced an immediate and strong efflux of K+ and a contaminant shrinkage of the vesicles. In comparison, Helminthosporium maydis toxin and Helminthosporium victoriae toxin, which are specific for certain plant genotypes (host-selective toxins) had a much smaller effect on the K+ efflux, which was comparable to that exerted by the specific K+ ionophore valinomycin. |
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