Changes of Soluble Protein in Some Organelles of Maize Seedl ing Leaf at Low Temperature

doi:10.3321/j.issn:1000-7091.1990.02.007

Abstract

Abstract: Maize inbred lines different in resistance to cold were exposed to low temperature (4-5C)for p, 24, 48, 72 hours respectively. The content of soluble protein in organelles of non-cold-resistant maize inbred lines decreased markedly，and some new protein bands appeared obviously in electrophoresis, but the decrease in the content of soluble protein in cold-resistant one was not obvious, only one new protein band was visible in the cytoplasm, Mean-while, the activity of protease declined during early low-temperature tre-atment, but tended to increase after 24 hours, and the rates of increase in non-cold-resistant m aize inbred lines w ere faster than that in cold-resistant one, The experiment demonstrated that the change of soluble protein content was the important index to identify cold-resistance of plant, and it was discovered that there was a new protein band which was the important base to research coldresistant protein

Key words: Maize, Inbred line, Cold-resistant, Soluble protein

Wu Lanfang. Changes of Soluble Protein in Some Organelles of Maize Seedl ing Leaf at Low Temperature[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1990, 5(2): 38-43. doi: 10.3321/j.issn:1000-7091.1990.02.007.

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