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PMID: 16735405 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Review

Enigma variations for peptides and their transporters in higher plants.

Annals of botany ·Vol. 98 ·No. 1 ·2006-07-00 ·Pages 1-8

Waterworth WM, Bray CM

Abstract

Two families of proteins that transport small peptides, the oligopeptide transporters (OPTs) and the peptide transporters (PTRs), have been recognized in eukaryotes. Higher plants contain a far greater number of genes for these transporters than do other eukaryotes. This may be indicative of the relative importance of (oligo)peptides and their transport to plant growth and metabolism. Recent studies are now allowing us to assign functions to these transporters and are starting to identify their in-planta substrates, revealing unexpected and important contributions of the transporters to plant growth and developmental processes. This Botanical Briefing appraises recent findings that PTRs and OPTs have key roles to play in the control of plant cell growth and development. Evidence is presented that some of these transporters have functions outside that of nitrogen nutrition and that these carriers can also surprise us with their totally unexpected choice of substrates.

MeSH Terms
Arabidopsis/cytology,growth & development,metabolism Arabidopsis Proteins/classification,metabolism,physiology Membrane Transport Proteins/classification,metabolism,physiology Multigene Family Oligopeptides/metabolism Peptides/metabolism Phylogeny Plant Proteins/classification,metabolism,physiology Plants/metabolism Substrate Specificity
Chemicals
Arabidopsis Proteins Membrane Transport Proteins Oligopeptides Peptides Plant Proteins
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Waterworth Wanda M
Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK.
Bray Clifford M
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Article Info
Journal
Annals of botany
Abbr.
Ann Bot
ISSN
0305-7364
DOI
10.1093/aob/mcl099
Published
2006-07-00
Epub
2006-00-30
Pages
1-8
Language
English
Region
England
NLM ID
0372347
PMCID
PMC2803549
Subset
IM
External Links
PubMed source DOI: 10.1093/aob/mcl099 PMC Full Text View journal details
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