Temperature effect on nitrate reductase activity in vivo

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    Temperature effect on the in vivo activity of nitrate reductase in barley leaf strips following 2-min treatment was studied. Exposures to temperatures above 20°C brought about an increase in the in vivo activity. The most effective temperature was 45°C, which caused a 3-4 fold increase of activity. The enhancing effect of the treatment at 45°C was largely reversible by an immediate consecutive 2-min treatment at low temperature, and vice versa. The enhancing effect was also found to revert back to normal during 2-h incubation period at room temperature. The significance of these findings with respect to the regulation of nitrate reductase activity is discussed.

    Original languageEnglish
    Pages (from-to)225-231
    Number of pages7
    JournalPlant Science Letters
    Issue number3
    StatePublished - 1 Jan 1977


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