Cause for dark, chilling-induced inactivation of photosynthetic oxygen-evolving system in cucumber leaves

Jian Ren Shen, Ichiro Terashima, Sakae Katoh

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

Effects on oxygen evolution of the storage of detached cucumber (Cucumis sativus) leaves at 0°C in the dark were investigated with thylakoids and oxygen-evolving photosystem II membranes isolated from stored leaves. The cold and dark treatment of leaves selectively inactivated electron transport on the oxidizing side of photosystem II. Photosystem II membranes isolated from treated leaves were largely depleted of two proteins of 20 and 14 kilodaltons, which correspond to the extrinsic 23- and 17-kilodalton proteins of spinach functioning in oxygen evolution. The manganese content of photosystem II membranes was also markedly reduced by the treatment. Thus, the inactivation of oxygen evolution induced by the dark, chilling treatment is ascribed to solubilization of the 20- and 14-kilodalton proteins and extraction of manganese.

Original languageEnglish
Pages (from-to)1354-1357
Number of pages4
JournalPlant physiology
Volume93
Issue number4
DOIs
Publication statusPublished - Aug 1990
Externally publishedYes

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science

Fingerprint Dive into the research topics of 'Cause for dark, chilling-induced inactivation of photosynthetic oxygen-evolving system in cucumber leaves'. Together they form a unique fingerprint.

  • Cite this