Protein and peroxidase changes in various root-cell fractions of two upland rice cultivars differing in A1 tolerance

F. Jan, K. Yamashita, H. Matsumoto, M. Maeda

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The quantitative changes in proteins and peroxidases associated with A1 toxicity were investigated in various root-cell fractions of upland rice cultivars that differ in A1 tolerance. The impact of A1 on growth of the A1-sensitive rice cultivar IR45 was related to a marked reduction of protein content in cytoplasm and an increase in the covalently-bound cell wall fractions. Regardless of cellular fractions, A1 also induced peroxidase activities in IR45 indicating a root-damage response to A1. In contrast, the A1 tolerant rice cultivar BG35 maintained the content of cellular proteins and enzyme activities under A1 stress.

Original languageEnglish
Pages (from-to)141-146
Number of pages6
JournalEnvironmental and Experimental Botany
Volume46
Issue number2
DOIs
Publication statusPublished - Oct 1 2001
Externally publishedYes

Keywords

  • Aluminium sensitivity
  • Cellular fractions
  • Oryza sativa
  • Peroxidases
  • Proteins
  • Upland rice

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Agronomy and Crop Science
  • Plant Science

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