Stress-induced changes in peptidyl-prolyl cis-trans isomerase activity of Sorghum bicolor seedlings

Academic Article

Abstract

  • Developmental changes and effects of various abiotic stresses on peptidyl prolyl cis-trans isomerase (PPIase) activity were studied in the seedlings of sorghum [Sorghum bicolor (L.) Moench cv. CSH-6]. The PPIase activity of sorghum seedlings markedly decreased after two days of germination. Up to 90 % of the PPIase activity was inhibited by cyclosporin-A. Maximal increase in specific PPIase activity in the 3-d-old seedlings was observed in response to osmotic stress and it was transient in nature. The stress-induced enhancement in PPIase activity, depending upon tissue and stress treatment, was due to induction of cyclophilins as well as other PPIases. Osmotic stress-induced enhancement in PPIase activity in the drought susceptible cv. SPRU-94008B was maximal in roots, as compared to shoots in the drought tolerant cv. ICSV-272.
  • Digital Object Identifier (doi)

    Author List

  • Sharma AD; Wajapeyee N; Yadav V; Singh P
  • Start Page

  • 367
  • End Page

  • 371
  • Volume

  • 47
  • Issue

  • 3