Salinity tolerance mechanisms in glycophytes: An overview with the central focus on rice plants

Tomoaki Horie*, Ichirou Karahara, Maki Katsuhara

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

314 Scopus citations

Abstract

Elevated Na+ levels in agricultural lands are increasingly becoming a serious threat to the world agriculture. Plants suffer osmotic and ionic stress under high salinity due to the salts accumulated at the outside of roots and those accumulated at the inside of the plant cells, respectively. Mechanisms of salinity tolerance in plants have been extensively studied and in the recent years these studies focus on the function of key enzymes and plant morphological traits. Here, we provide an updated overview of salt tolerant mechanisms in glycophytes with a particular interest in rice (Oryza sativa) plants. Protective mechanisms that prevent water loss due to the increased osmotic pressure, the development of Na+ toxicity on essential cellular metabolisms, and the movement of ions via the apoplastic pathway (i.e. apoplastic barriers) are described here in detail.

Original languageEnglish
Article number11
JournalRice
Volume5
Issue number1
DOIs
StatePublished - 2012

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Soil Science
  • Plant Science

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