Changes in Activities and Levels of Pyruvate, Orthophosphate Dikinase with Induction of Crassulacean Acid Metabolism in Mesembryanthemum crystallinum L.

Kazuyuki Saitou, Yasunori Nakamura, Yosinobu Kawamitsu, Makoto Matsuoka, Muneaki Samejima, Waichi Agata

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

In Mesembryanthemum crystallinum L. leaves exhibiting C3 photosynthesis, Crassulacean acid metabolism (CAM), as characterized by CO2 uptake during the dark period, was induced by exposing the plant roots to high NaCl concentration over a week. The increase in malate content in the leaves at the end of the dark period correlated with the increases in the activities of phosphoenolpyruvate carboxylase (PEPCase), NADP malic enzyme (NADP-ME) and pyruvate, orthophosphate dikinase (PPDK) which exhibited a maximum about a week after NaCl treatment. It was found that PPDK existed in C3-M. crystallinum and the increases in the activities of PEPCase and PPDK were accompanied by the de novo synthesis of these proteins.

Original languageEnglish
Pages (from-to)146-152
Number of pages7
JournalJapanese Journal of Crop Science
Volume60
Issue number1
DOIs
Publication statusPublished - Jan 1991

All Science Journal Classification (ASJC) codes

  • Food Science
  • Agronomy and Crop Science
  • Genetics

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