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Plant Signal Behav. 2010 Nov;5(11):1342-6. Epub 2010 Nov 1.

RALFs: peptide regulators of plant growth.

Author information

1
Department of Biology, Colorado State University, Fort Collins, CO, USA. Bedinger@colostate.edu

Abstract

Peptide signaling regulates a variety of developmental processes and environmental responses in plants. For example, the peptide systemin induces the systemic defense response in tomato and defensins are small cysteine-rich proteins that are involved in the innate immune system of plants. The CLAVATA3 peptide regulates meristem size and the SCR peptide is the pollen self-incompatibility recognition factor in the Brassicaceae. LURE peptides produced by synergid cells attract pollen tubes to the embryo sac. RALFs are a recently discovered family of plant peptides that play a role in plant cell growth.

PMID:
21045555
PMCID:
PMC3115231
DOI:
10.4161/psb.5.11.12954
[Indexed for MEDLINE]
Free PMC Article

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