Time to pump iron: iron-deficiency-signaling mechanisms of higher plants

Elsbeth L. Walker, Erin L. Connolly

Research output: Contribution to journalReview article

171 Citations (Scopus)

Abstract

Iron is an essential nutrient for plants, yet it often limits plant growth. On the contrary, overaccumulation of iron within plant cells leads to oxidative stress. As a consequence, iron-uptake systems are carefully regulated to ensure that iron homeostasis is maintained. In response to iron limitation, plants induce expression of sets of activities that function at the root-soil interface to solubilize iron and subsequently transfer it across the plasma membrane of root cells. Recent advances have revealed key players in the signaling pathways that function to induce these iron-uptake responses. Transcription factors belonging to the basic helix-loop-helix, ABI3/VP1(B3), and NAC families appear to function either directly or indirectly in the upregulation of iron deficiency responses.

Original languageEnglish (US)
Pages (from-to)530-535
Number of pages6
JournalCurrent Opinion in Plant Biology
Volume11
Issue number5
DOIs
StatePublished - Oct 1 2008

Fingerprint

pumps
iron
uptake mechanisms
homeostasis
oxidative stress
plasma membrane
transcription factors
plant growth
cells
nutrients
soil

All Science Journal Classification (ASJC) codes

  • Plant Science

Cite this

@article{dd245155d9c2472eb3b3cc6ce98fe16e,
title = "Time to pump iron: iron-deficiency-signaling mechanisms of higher plants",
abstract = "Iron is an essential nutrient for plants, yet it often limits plant growth. On the contrary, overaccumulation of iron within plant cells leads to oxidative stress. As a consequence, iron-uptake systems are carefully regulated to ensure that iron homeostasis is maintained. In response to iron limitation, plants induce expression of sets of activities that function at the root-soil interface to solubilize iron and subsequently transfer it across the plasma membrane of root cells. Recent advances have revealed key players in the signaling pathways that function to induce these iron-uptake responses. Transcription factors belonging to the basic helix-loop-helix, ABI3/VP1(B3), and NAC families appear to function either directly or indirectly in the upregulation of iron deficiency responses.",
author = "Walker, {Elsbeth L.} and Connolly, {Erin L.}",
year = "2008",
month = "10",
day = "1",
doi = "10.1016/j.pbi.2008.06.013",
language = "English (US)",
volume = "11",
pages = "530--535",
journal = "Current Opinion in Plant Biology",
issn = "1369-5266",
publisher = "Elsevier Limited",
number = "5",

}

Time to pump iron : iron-deficiency-signaling mechanisms of higher plants. / Walker, Elsbeth L.; Connolly, Erin L.

In: Current Opinion in Plant Biology, Vol. 11, No. 5, 01.10.2008, p. 530-535.

Research output: Contribution to journalReview article

TY - JOUR

T1 - Time to pump iron

T2 - iron-deficiency-signaling mechanisms of higher plants

AU - Walker, Elsbeth L.

AU - Connolly, Erin L.

PY - 2008/10/1

Y1 - 2008/10/1

N2 - Iron is an essential nutrient for plants, yet it often limits plant growth. On the contrary, overaccumulation of iron within plant cells leads to oxidative stress. As a consequence, iron-uptake systems are carefully regulated to ensure that iron homeostasis is maintained. In response to iron limitation, plants induce expression of sets of activities that function at the root-soil interface to solubilize iron and subsequently transfer it across the plasma membrane of root cells. Recent advances have revealed key players in the signaling pathways that function to induce these iron-uptake responses. Transcription factors belonging to the basic helix-loop-helix, ABI3/VP1(B3), and NAC families appear to function either directly or indirectly in the upregulation of iron deficiency responses.

AB - Iron is an essential nutrient for plants, yet it often limits plant growth. On the contrary, overaccumulation of iron within plant cells leads to oxidative stress. As a consequence, iron-uptake systems are carefully regulated to ensure that iron homeostasis is maintained. In response to iron limitation, plants induce expression of sets of activities that function at the root-soil interface to solubilize iron and subsequently transfer it across the plasma membrane of root cells. Recent advances have revealed key players in the signaling pathways that function to induce these iron-uptake responses. Transcription factors belonging to the basic helix-loop-helix, ABI3/VP1(B3), and NAC families appear to function either directly or indirectly in the upregulation of iron deficiency responses.

UR - http://www.scopus.com/inward/record.url?scp=51649126661&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=51649126661&partnerID=8YFLogxK

U2 - 10.1016/j.pbi.2008.06.013

DO - 10.1016/j.pbi.2008.06.013

M3 - Review article

C2 - 18722804

AN - SCOPUS:51649126661

VL - 11

SP - 530

EP - 535

JO - Current Opinion in Plant Biology

JF - Current Opinion in Plant Biology

SN - 1369-5266

IS - 5

ER -