ABCB1 and ABCB19 auxin transporters have synergistic effects on early and late Arabidopsis anther development Effect of Polar Auxin Transport on Rice Root Development Advances in Study of Polar Auxin Transport Adenosine Diphosphate Ribosylation Factor-GTPase-Activating Protein Stimulates the Transport of AUX1 Endosome, Which Relies on Actin Cytoskeletal Organization in Rice Root Development Polarity, Continuity, and Alignment in Plant Vascular Strands