Antimycin A treatment decreases respiratory internal rotenone-insensitive NADH oxidation capacity in potato leaves |
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| Authors: | Daniela?A?Geisler Fredrik?I?Johansson ??Staffan?Svensson Email author" target="_blank">Allan?G?RasmussonEmail author |
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| Institution: | 1.Dept of Cell and Organism Biology,Lund University,Lund,Sweden;2.Dept of Plant Biology,The Royal Veterinary and Agricultural University,Frederiksberg C,Denmark |
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| Abstract: | Background The plant respiratory chain contains several energy-dissipating enzymes, these being type II NAD(P)H dehydrogenases and the
alternative oxidase, not present in mammals. The physiological functions of type II NAD(P)H dehydrogenases are largely unclear
and little is known about their responses to stress. In this investigation, potato plants (Solanum tuberosum L., cv. Desiree) were sprayed with antimycin A, an inhibitor of the cytochrome pathway. Enzyme capacities of NAD(P)H dehydrogenases
(EC 1.6.5.3) and the alternative oxidase were then analysed in isolated leaf mitochondria. |
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