Cytokinin activity – transport and homeostasis at the whole plant, cell, and subcellular levels

Yangjie Hu*, Eilon Shani*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Cytokinins (CKs) are important plant hormones that regulate a variety of biological processes implicated in plant development and stress responses. Here, we summarize the most recent advances in discovering and characterizing the membrane transporters involved in long- and short-distance translocation of CKs and their significance in CK signal activity. We highlight the discovery of PUP7 and PUP21 tonoplast-localized transporters and propose potential mechanisms for CK subcellular homeostasis. Finally, we discuss the importance of subcellular hormone transport in light of the localization of histidine kinase receptors of CKs at the endoplasmic reticulum and plasma membrane.

Original languageEnglish
Pages (from-to)1603-1608
Number of pages6
JournalNew Phytologist
Volume239
Issue number5
DOIs
StatePublished - Sep 2023

Funding

FundersFunder number
European Research Council757683‐RobustHormoneTrans
Human Frontier Science ProgramHFSP‐LIY000540/2020
Israel Science Foundation3419/20, 2378/19

    Keywords

    • PUP transporters
    • cytokinin activity
    • cytokinin transport
    • meristem
    • plant hormones

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