MicroRNAs Are Involved in Regulating Plant Development and Stress Response through Fine-Tuning of TIR1/AFB-Dependent Auxin Signaling

  • Int J Mol Sci. 2022 Jan 3;23(1):510. doi: 10.3390/ijms23010510.
Pan Luo  1 ,  Dongwei Di  2 ,  Lei Wu  3 ,  Jiangwei Yang  1 ,  Yufang Lu  2 ,  Weiming Shi  2
Affiliations
  • 1. College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China.
  • 2. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
  • 3. MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, China.
PMID: 35008937 DOI: 10.3390/ijms23010510
Abstract

Auxin, primarily indole-3-acetic acid (IAA), is a versatile signal molecule that regulates many aspects of plant growth, development, and stress response. Recently, MicroRNAs (miRNAs), a type of short non-coding RNA, have emerged as master regulators of the Auxin response pathways by affecting Auxin homeostasis and perception in Plants. The combination of these miRNAs and the autoregulation of the Auxin signaling pathways, as well as the interaction with other Hormones, creates a regulatory network that controls the level of Auxin perception and signal transduction to maintain signaling homeostasis. In this review, we will detail the miRNAs involved in Auxin signaling to illustrate its in planta complex regulation.

Keywords
TIR1/AFBs (Transport Inhibitor Response 1/Auxin Signaling F-Box Protein); auxin signal; microRNA; precise regulation.