The polarity of PIN proteins determine the intercellular flow of these types of molecules.
The overexpression of AXI 4 or other cation-chloride co-transporters triggers growth of protoplasts independent of these molecules. This class of molecule binds to ABP-1 to regulate clathrin-mediated endocytosis. The polarity of PIN proteins determine the intercellular flow of these types of molecules. This hormone is linked to the action of expansin, which causes cell enlargement, because it turns on proton ATPase. In large quantities, this hormone will stimulate the production of ethylene, which causes leaf abscission. The asymmetric distribution of this molecule regulates both gravitropism and phototropism. Indole-3-acetic acid is, for 10 points, a member of what class of plant hormones that promotes elongation of coleoptiles and enhance apical dominance.
The overexpression of AXI 4 or other cation-chloride co-transporters triggers growth of protoplasts independent of these molecules.
auxin [accept indole-3-acetic acid before mention]