“…Experimental and theoretical studies suggest that organization of plant cortical microtubules into ordered arrays depends on intrinsic microtubule behaviors, such as polymer treadmilling, encounters between microtubules with angle-dependent outcomes, microtubule-dependent microtubule nucleation, and alteration of essential properties, such as plus-end stability in specific cell domains (Shaw et al, 2003;Dixit and Cyr, 2004;Baulin et al, 2007;Kawamura and Wasteneys, 2008;Allard et al, 2010;Eren et al, 2010;Hawkins et al, 2010;Nakamura et al, 2010;Shi and Ma, 2010;Tindemans et al, 2010;Ambrose et al, 2011;Deinum et al, 2011). While clues to how arrays might attain parallel organization are arising from these studies, outstanding questions are how particular array orientations are obtained, how arrays are dynamically reorganized by developmental and environmental cues, and what microtubule properties and behaviors are important for array reorganization.…”