[Effect of low temperature on electron transport in plant mitochondria respiratory chain].
The etiolated 2.5-day winter wheat sprouts were chilled at 3 degrees C during 24 to 144 hours. After 24 h cooling, shoot intact mitochondria showed a high degree of activation of the alternative oxidase, which was measured as sodium azide and benzohydroxamate sensitivity of the organelles respiration with succinate as a substrate. The role of the alternative oxidase in limiting the level of reactive oxygen species produced in the stressed plant tissues is discussed.
Kravets'
V S
VS
Institute of Plant Physiology and Genetics of National Academy of Science of Ukraine, Kyiv.
D003080:Cold Temperature; D004579:Electron Transport; D008928:Mitochondria / Q000378:metabolism*; D014908:Triticum / Q000378:metabolism*