Fe deficiency induces phosphorylation and translocation of Lhcb1 in barley thylakoid membranes

Akihiro Saito, Mizuho Shimizu, Hitomi Nakamura, Shoko Maeno, Riko Katase, Eitaro Miwa, Kyoko Higuchi, Kintake Sonoike

研究成果: Article査読

10 被引用数 (Scopus)

抄録

HvLhcb1 a major light-harvesting chlorophyll a/b-binding protein in barley, is a critical player in sustainable growth under Fe deficiency. Here, we demonstrate that Fe deficiency induces phosphorylation of HvLhcb1 proteins leading to their migration from grana stacks to stroma thylakoid membranes. HvLhcb1 remained phosphorylated even in the dark and apparently independently of state transition, which represents a mechanism for short-term acclimation. Our data suggest that the constitutive phosphorylation-triggered translocation of HvLhcb1 under Fe deficiency contributes to optimization of the excitation balance between photosystem II and photosystem I, the latter of which is a main target of Fe deficiency.

本文言語English
ページ(範囲)2042-2048
ページ数7
ジャーナルFEBS Letters
588
12
DOI
出版ステータスPublished - 2014 7 5

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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