Effects of abiotic stresses on the turnover of the Di reaction centre II protein. -Physiol. Plant. 101: 635-642.In the 199O's, evidence has accumulated that various unfavourable environmental conditions substantially affect the turnover of the D| protein of reaction centre II, the psbA gene product. Biochemical, molecular and physiological studies in higher plants indicate that alterations of Di protein turnover occur under drought, nutrition deficiency, heat, chemical stress, ozone fumigation as well as UV-B and visible photo-stresses. The behaviour of photosystem II under these various stress conditions indicates that the response of Di protein turnover can be interpreted as a general adaptive response to environmental extremes.
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