关键词: 红苞蔓绿绒幼苗, 低温, 光照, 膜脂过氧化

Abstract: Effects of low temperature and light on membrane-lipid peroxidation of Philodendro cv.Wend-imbe seedlings were studied. The differences of damage between low temperature treatments and the control were not significant. The contents of MDA and the activities of CAT and POD and membrane permeability were higher than those of the control, suggesting that the level of the membrane-lipid peroxidation increased with low temperature stress. The membrane permeability, the contents of MDA and the activities of CAT and POD were higher under darkness than that under light at 5℃. The results at 10℃ turned out contrary to that at 5℃.

Key words: Philodendron cv.Wend-imbe seedlings, low temperature, light, membrane- lipid peroxidation