Molecular mechanisms mediating root hydrotropism: what we have observed since the rediscovery of hydrotropism

Yutaka Miyazawa, Hideyuki Takahashi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Roots display directional growth toward moisture in response to a water potential gradient. Root hydrotropism is thought to facilitate plant adaptation to continuously changing water availability. Hydrotropism has not been as extensively studied as gravitropism. However, comparisons of hydrotropic and gravitropic responses identified mechanisms that are unique to hydrotropism. Regulatory mechanisms underlying the hydrotropic response appear to differ among different species. We recently performed molecular and genetic analyses of root hydrotropism in Arabidopsis thaliana. In this review, we summarize the current knowledge of specific mechanisms mediating root hydrotropism in several plant species.

Original languageEnglish
Pages (from-to)3-14
Number of pages12
JournalJournal of Plant Research
Volume133
Issue number1
DOIs
Publication statusPublished - 2020 Jan 1

Keywords

  • Abscisic acid
  • Auxin
  • Hydrotropism
  • MIZU-KUSSEI1 (MIZ1)
  • MIZU-KUSSEI2 (MIZ2)

ASJC Scopus subject areas

  • Plant Science

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