sentence: Related models have been put forward when studying fundamental aspects of cellular activity , including cytoskeleton function , endocytic protein sorting , and ribosome biogenesis , perturbation of which consistently resulted in phenotypes that could be linked to altered auxin responses ( Dhonukshe et al ., 2008 ; Kitakura et al ., 2011 ; Retzer et al ., 2014 ; Rosado et al ., 2010 ; Wang et al ., 2013a ; Zhou et al ., 2010 ) .