Plant Hormone Transport and Localization: Signaling Molecules on the Move

Yuqin Zhang, Amichai Berman, Eilon Shani

Research output: Contribution to journalReview articlepeer-review

22 Scopus citations

Abstract

Plant hormones are a group of small signaling molecules produced by plants at very low concentrations that have the ability to move and function at distal sites. Hormone homeostasis is critical to balance plant growth and development and is regulated at multiple levels, including hormone biosynthesis, catabolism, perception, and transduction. In addition, plants move hormones over short and long distances to regulate various developmental processes and responses to environmental factors. Transporters coordinate these movements, resulting in hormone maxima, gradients, and cellular and subcellular sinks. Here, we summarize the current knowledge of most of the characterized plant hormone transporters with respect to biochemical, physiological, and developmental activities. We further discuss the subcellular localizations of transporters, their substrate specificities, and the need for multiple transporters for the same hormone in the context of plant growth and development.

Original languageEnglish
Pages (from-to)453-479
Number of pages27
JournalAnnual Review of Plant Biology
Volume74
DOIs
StatePublished - 22 May 2023

Keywords

  • ABA
  • Abscisic acid
  • Auxin
  • CK
  • Cytokinin
  • Ethylene
  • GA
  • Gibberellin
  • Hormone homeostasis
  • IAA
  • JA
  • Jasmonic acid
  • Phytohormones
  • Plant hormones
  • Transport mechanisms
  • Transporter

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