THE FIRST AND 6TH CHROMOSOMES OF SOFT WINTER-WHEAT D-GENOME CONTROL THE SYNTHESIS OF 310-KD COLD-SHOCK PROTEIN

1D and 6D chromosomes of wheat (Triticum aestivum L.) cv. Bezostaya 1 were substituted with the corresponding chromosomes of frost-tolerant cv. Albidum 114, and the effects of this substitution on the content o f a stress protein with a mol wt of 310 kD were studied. It was sugges ted that the 1D and 6D chromosomes of frost-tolerant winter wheat cont ain genes that control the expression of this stress protein. Mitochon dria from winter wheat seedlings were found to contain an antigen cros s-reacting with antibodies against a 310-kD protein. Under hypothermia , this protein was shown to reduce the proton control of oxidative pho sphorylation in mitochondria.