Members of a recently discovered subfamily of cytokinin receptors display differences and similarities to their classical counterparts

Nijuscha Gruhn, M.F. Seidl, Mhyeddeen Halawa, Alexander Heyl*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

Cytokinins represent a group of plant hormones that have been shown to be essential for plant growth and development. A recent large-scale phylogenetic analysis of components of the cytokinin signal transduction pathway revealed, among other findings, the existence of a second, previously unknown subfamily of cytokinin receptors. Here we report that the cytokinin binding domains of the members of the 2 subfamilies contain residues that are highly conserved in either or in both subfamilies. Experiments using fluorescence microscopy hint at an ER and a plasma membrane localization for 2 members of the newly identified subfamily. These data provide new insights in the conservation of sequence and localization properties among the 2 subfamilies.

Original languageEnglish
Article numbere984512
JournalPlant Signaling & Behavior
Volume10
Issue number2
DOIs
Publication statusPublished - 2015

Keywords

  • Cytokinin
  • Cytokinin receptor
  • Evolution
  • Signal transduction
  • Two-component signaling

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