When fat is not bad: the regulation of actin dynamics by phospholipid signaling molecules.
The actin cytoskeleton plays a key role in the plant morphogenesis and is involved in polar cell growth, movement of subcellular organelles, cell division, and plant defense. Organization of actin cytoskeleton undergoes dynamic remodeling in response to internal developmental cues and diverse environmental signals. This dynamic behavior is regulated by numerous actin-binding proteins (ABPs) that integrate various signaling pathways. Production of the signaling lipids phosphatidylinositol 4,5-bisphosphate and phosphatidic acid affects the activity and subcellular distribution of several ABPs, and typically correlates with increased actin polymerization. Here we review current knowledge of the inter-regulatory dynamics between signaling phospholipids and the actin cytoskeleton in plant cells.
Institute of Experimental Botany, v. v. i., Academy of Sciences of the Czech Republic Prague, Czech Republic.
Roman
R
Pleskot
Institute of Experimental Botany, v. v. i., Academy of Sciences of the Czech Republic Prague, Czech Republic.
Přemysl
P
Pejchar
Department of Biological Sciences, Purdue University West Lafayette, IN, USA.
Christopher J
CJ
Staiger
Institute of Experimental Botany, v. v. i., Academy of Sciences of the Czech Republic Prague, Czech Republic.
Martin
M
Potocký
actin; actin-binding proteins; capping protein; cytoskeleton; phosphatidic acid; phosphatidylinositol 4,5-bisphosphate; phospholipase D; signaling