Chilling injury and nucleotide changes in young cotton plants.
نویسندگان
چکیده
The effects of chilling at 3 to 5 C on the nucleotide composition of roots and leaves of cotton (Gossypium hirsutum L.) seedlings were determined. Chilling decreased the concentration of nucleotides, especially di- and triphosphates, in both leaves and roots. Chilling also caused an increase in free nucleosides. The results are interpreted to mean that general phosphorolytic activity is associated with chilling injury rather than damage to the phosphorylating mechanisms alone. Hardening at 10 to 20 C prior to chilling protected the seedlings against subsequent chilling injury and prevented nucleotide losses.
منابع مشابه
Chilling injury and changes in adenosine triphosphate of cotton seedlings.
Young Gossypium hirsutum L. seedlings chilled at 5 degrees showed a continual decrease in ATP concentration with time of chilling. Chilled plants returned to optimum conditions were able to restore the initial ATP concentration when chilled only 1 day, but not when chilled 2 days. The decrease in ATP with chilling was prevented by hardening the seedlings at 15 degrees for 2 days (14-hr-day-leng...
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Chaplin, G.R. and K.J. Scott. 1980. Association of calcium in chilling injury susceptibility of stored avocados. HortScience 15:514–515. Chaplin, G.R., R.B.H. Wills, and D. Graham. 1983. Induction of chilling injury in stored avocados with exogenous ethylene. HortScience 18:952–953. Cohen, E. 1988. Commercial use of long-term storage of lemon with intermittent warming. HortScience 23:400. Cohen...
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ورودعنوان ژورنال:
- Plant physiology
دوره 48 2 شماره
صفحات -
تاریخ انتشار 1971