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Metabolism of Ribonucleic Acid and Protein in Ripening Apple Fruits

Authors
Journal
Journal of Plant Physiology
0176-1617
Publisher
Elsevier
Publication Date
Volume
139
Issue
5
Identifiers
DOI: 10.1016/s0176-1617(11)80371-8
Keywords
  • Malus Sylvestris Mill.
  • Poly(A)+Rna
  • Polysome
  • Protein Synthesis
  • Ripening Gradient
  • Rna Synthesis
Disciplines
  • Biology

Abstract

Summary In climacteric apples, the incorporation of 3H-uridine and 3H-leucine into RNA and protein significantly increased along with increases in total polysomal RNA and Poly(A) +RNA, indicating that increased RNA and protein production plays an important role in ripening. There were substantial differences between the outer and inner tissue zones in soluble-solids content, RNA and protein synthetic rate, and protein content. The relatively high soluble-solids content in the outer tissue was associated with relatively high RNA and protein synthesis as well as high protein content. The formation of the ripening gradient is discussed.

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