Phytomelatonin inhibits seed germination by regulating germination-related hormone signaling in Arabidopsis

Plant Signal Behav. 2021 Dec 2;16(12):1970447. doi: 10.1080/15592324.2021.1970447. Epub 2021 Oct 11.

Abstract

Seed germination is a vital initial stage in the life cycle of a plant, which determines subsequent vegetative growth and reproduction. Melatonin acts as a plant's master regulator and is also involved in the process of seed germination. In a recent study, we show that the high concentration melatonin inhibited seed germination in Arabidopsis. Transcriptome and phenotype analysis implied that melatonin-mediated seed germination interacted with phytohormones abscisic acid (ABA), gibberellin (GA), and auxin. In this short communication, we discuss the mechanism of phytomelatonin that inhibits seed germination through ABA, GA, and IAA in Arabidopsis.

Keywords: Arabidopsis; Phytomelatonin; phytohormone; seed germination.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Abscisic Acid / pharmacology
  • Arabidopsis Proteins* / metabolism
  • Arabidopsis* / genetics
  • Gene Expression Regulation, Plant
  • Germination / physiology
  • Gibberellins / pharmacology
  • Melatonin* / pharmacology
  • Seeds / metabolism

Substances

  • Arabidopsis Proteins
  • Gibberellins
  • Abscisic Acid
  • Melatonin

Grants and funding

This work was supported by the Yunnan Foundamental Research Projects [202001AU070125]; Yunnan Foundamental Research Projects [202001AW070009]; Natural Science Foundation of China [32060136]; Natural Science Foundation of China [31801023].