Journal
SEMINARS IN CELL & DEVELOPMENTAL BIOLOGY
Volume 22, Issue 8, Pages 816-824Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.semcdb.2011.06.004
Keywords
ROP signaling; Vesicular trafficking; Cell wall mechanics; Actin dynamics; Oscillation
Categories
Funding
- Institute of Plant Physiology and Ecology
- Chinese Academy of Sciences
- NIH [GM081451]
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Pollen tubes extend rapidly in an oscillatory manner by the extreme form of polarized growth, tip growth, and provide an exciting system for studying the spatiotemporal control of polarized cell growth. The Rho-family ROP GTPase is a key signaling molecule in this growth control and is periodically activated at the apical plasma membrane to spatially define the apical growth region and temporally precede the burst of growth. The spatiotemporal dynamics of ROP GTPase is interconnected with actin dynamics and polar exocytosis that is required for tip-targeted membrane and wall expansion. Recent advances in the study of the mechanistic interlinks between ROP-centered signaling and spatiotemporal dynamics of cell membrane and wall remodeling will be discussed. Published by Elsevier Ltd.
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