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RNA Synthesis in Spring and Winter Wheat during Cold Acclimation
Author(s) -
SARHAN F.,
D'AOUST M. J.
Publication year - 1975
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1975.tb03868.x
Subject(s) - acclimatization , spring (device) , ribosomal rna , biology , rna , winter wheat , transfer rna , botany , agronomy , biochemistry , gene , mechanical engineering , engineering
Marked increases were obtained in the levels of ribosomal and soluble RNA fractions in winter wheat submitted to cold acclimation temperatures. In comparison, the change in the rRNA and sRNA of spring wheat, grown under similar conditions, were less pronounced. With the cold acclimation treatment, sRNA accumulated by winter wheat shows an important change in its (G + C)/ (A +Ψ+ U) ratio, whereas no change in base composition is observed in the sRNA of spring wheat or the rRNA of both spring and winter wheat. It is suggested that in winter wheat, cold acclimation temperatures potentiate increased synthesis of specific sRNAs, this possibly being part of the increased capacity for protein synthesis associated with cold acclimation.