Importance of Tyrosine Phosphorylation in Hormone-Regulated Plant Growth and Development

Weimeng Song, Li Hu, Zhihui Ma, Lei Yang, Jianming Li*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

7 Citations (Scopus)


Protein phosphorylation is the most frequent post‐translational modification (PTM) that plays important regulatory roles in a wide range of biological processes. Phosphorylation mainly occurs on serine (Ser), threonine (Thr), and tyrosine (Tyr) residues, with the phosphorylated Tyr sites accounting for ~1–2% of all phosphorylated residues. Tyr phosphorylation was initially be-lieved to be less common in plants compared to animals; however, recent investigation indicates otherwise. Although they lack typical protein Tyr kinases, plants possess many dual‐specificity protein kinases that were implicated in diverse cellular processes by phosphorylating Ser, Thr, and Tyr residues. Analyses of sequenced plant genomes also identified protein Tyr phosphatases and dual-specificity protein phosphatases. Recent studies have revealed important regulatory roles of Tyr phosphorylation in many different aspects of plant growth and development and plant interactions with the environment. This short review summarizes studies that implicated the Tyr phosphoryla-tion in biosynthesis and signaling of plant hormones.

Original languageEnglish
Article number6603
Number of pages18
JournalInternational Journal of Molecular Sciences
Issue number12
Early online date13 Jun 2022
Publication statusPublished - Jun 2022

Scopus Subject Areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

User-Defined Keywords

  • protein tyrosine phosphorylation
  • phytohormones
  • plant growth and development
  • brassinosteroids


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