Work

Inhibition by Polyamines of Macromolecular Synthesis and Its Implication for Ethylene Production and Senescence Processes

Year: 1982

Type: article

Abstract: Applied diamines and polyamines inhibited the incorporation of radioactively labeled leucine and uridine into trichloroacetic acid-insoluble material in apple (Malus domestica Borkh, cv Golden Delicious) fruit tissue. The inhibitory effect was in general more pronounced with the higher molecular weight amines. Putrescine at 5 millimolar inhibited leucine incorporation by 37% and uridine by 44%. Spermidine and spermine at the same concentration inhibited uridine incorporation by 60%. The polyamines at concentrations between 0.1 and 1.0 millimolar inhibited leucine incorporation by 55 to 90%. The inhibitory effect of 0.1 to 10 millimolar polyamines on dark- and wound-induced senescence or ethylene production, is discussed in the light of interference with macromolecular synthesis.

Source: PLANT PHYSIOLOGY

DOI: 10.1104/pp.70.4.1221

Authors: Akiva Apelbaum, Isaac Icekson, Alan C. Burgoon, Morris Lieberman

Institution: Agricultural Research Organization

Language: English

Topic: Polyamine Metabolism and Applications

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Zero hunger

Open Access status: green

OpenAlex ID: W2014838599