Small Signaling Peptides in Arabidopsis Development: How Cells Communicate Over a Short Distance

To sustain plants' postembryonic growth and development in a structure of cells fixed in cell walls, a tightly controlled short distance cell-cell communication is required. The focus on phytohormones, such as auxin, has historically overshadowed the importance of small peptide signals, but it...

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Bibliographic Details
Published in:The Plant cell 2012-08, Vol.24 (8), p.3198-3217
Main Authors: Murphy, Evan, Smith, Stephanie, De Smet, Ive
Format: Article
Language:English
Subjects:
Amino Acid Sequence
Arabidopsis - growth & development
Arabidopsis - physiology
Arabidopsis Proteins - metabolism
Arabidopsis thaliana
auxins
Cell Communication
Cell Differentiation
cell walls
Daughter cells
Developmental biology
growth and development
Guard cells
Membrane Proteins - metabolism
Microsporocytes
Peptides
Phenotypes
Plant cells
Plant Cells - physiology
plant hormones
Plant roots
Plant Stomata - growth & development
Plant Stomata - metabolism
Plant Vascular Bundle - metabolism
Plants
Protein Processing, Post-Translational
Protein Sorting Signals
Proteolysis
Receptors
REVIEW
Secretory Pathway
Seeds - growth & development
Seeds - metabolism
signal peptide
Stem cells
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Summary:To sustain plants' postembryonic growth and development in a structure of cells fixed in cell walls, a tightly controlled short distance cell-cell communication is required. The focus on phytohormones, such as auxin, has historically overshadowed the importance of small peptide signals, but it is becoming clear that secreted peptide signals are important in cell-cell communication to coordinate and integrate cellular functions. However, of the more than 1000 potential secreted peptides, so far only very few have been functionally characterized or matched to a receptor. Here, we will describe our current knowledge on how small peptide signals can be identified, how they are modified and processed, which roles they play in Arabidopsis thaliana development, and through which receptors they act.
ISSN:1040-4651
1532-298X
DOI:10.1105/tpc.112.099010