کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2205185 1100869 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spatial control of Rho (Rac-Rop) signaling in tip-growing plant cells
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی بیولوژی سلول
پیش نمایش صفحه اول مقاله
Spatial control of Rho (Rac-Rop) signaling in tip-growing plant cells
چکیده انگلیسی

Spatially restricted signaling by Rho GTPases is essential for the polarization of eukaryotic cells, which is required for the morphogenesis, mobility and division of single cells, and for the development of multicellular organisms. Rac-Rop GTPases, which constitute a plant-specific Rho GTPase subfamily, accumulate at the apical plasma membrane of pollen tubes and root hairs, where they control rapid polar cell expansion by a process known as tip growth. Here, recent insights into the spatial control of Rac-Rop-dependent signaling in tip-growing plant cells by regulatory proteins (i.e. Rho GTPase-activating proteins, Rho guanine nucleotide dissociation inhibitors, Rho guanine nucleotide-exchange factors and phosphoinositide-specific phospholipase C) and lipids [phosphatidylinositol (4,5)-bisphosphate and diacyl glycerol] are summarized. A model is presented, which integrates the current knowledge concerning the molecular mechanisms that maintain the polarization of Rho signaling in plant cells.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: - Volume 18, Issue 3, March 2008, Pages 119–127
نویسندگان
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