J Integr Plant Biol ›› 2010, Vol. 52 ›› Issue (2): 131-137.DOI: 10.1111/j.1744-7909.2010.00922.x
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Ying Fu*
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The organization and dynamics of the actin cytoskeleton play key roles in many aspects of plant cell development. The actin cytoskeleton responds to internal developmental cues and environmental signals and is involved in cell division, subcellular organelle movement, cell polarity and polar cell growth. The tipgrowing pollen tubes provide an ideal model system to investigate fundamental mechanisms of underlying polarized cell growth. In this system, most signaling cascades required for tip growth, such as Ca2+-, small GTPases- and lipid-mediated signaling have been found to be involved in transmitting signals to a large group of actin-binding proteins. These actin-binding proteins subsequently regulate the structure of the actin network, as well as the rapid turnover of actin filaments (F-actin), thereby eventually controlling tip growth. The actin cytoskeleton acts as an integrator in which multiple signaling pathways converge, providing a general growth and regulatorymechanism that applies not only for tip growth but also for polarized diffuse growth in plants.
Fu Y (2010) The actin cytoskeleton and signaling network during pollen tube tip growth. J. Integr. Plant Biol. 52(2), 131–137.
Ying Fu. The Actin Cytoskeleton and Signaling Network in the Pollen Tube Tip Growth[J]. J Integr Plant Biol, 2010, 52(2): 131-137.
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https://www.jipb.net/CN/Y2010/V52/I2/131