Polar auxin transport pathway of rice. Even though we have shown a representative diagram of influx and efflux proteins on different but adjacent cells, the auxin influx and efflux transport proteins when present in the same cell, are often located in the plasma membrane of cell's opposite side or on the sides (left/right). All the different paralogs of influx and efflux proteins may not be present in the same cell. Often their expression and localization is tissue, cell, organ and development stage specific. This helps in directing the flow of auxin towards 'auxin maxima' sites in plant organs and cells as needed. In some cases auxin can permeate through the plasma membrane. e31 c6d e70 fc8 c10 b90 af9 c34 Plasma mambrane H+ ATPase PIN1 Homolog: Auxin eflux transporter Synonym: proton Synonym: IAA Synonym: IAA(-) ion PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter PIN1 Homolog: Auxin eflux transporter Synonym: IAA(-) ion Synonym: proton Synonym: proton Auxin influx transporter Auxin influx transporter Auxin influx transporter Auxin influx transporter Auxin influx transporter Synonym: IAA Synonym: IAA(-) ion Synonym: proton Synonym: IAA(-) ion Synonym: proton Synonym: proton Plasma mambrane H+ ATPase Synonym: proton 21631728 PubMed Adenosine diphosphate ribosylation factor-GTPase-activating protein stimulates the transport of AUX1 endosome, which relies on actin cytoskeletal organization in rice root development. J Integr Plant Biol 2011 Du C Xu Y Wang Y Chong K hormone signaling pathway PW:0000465 Pathway Ontology 16085936 PubMed A PIN1 family gene, OsPIN1, involved in auxin-dependent adventitious root emergence and tillering in rice. Plant Cell Physiol 2005 Xu M Zhu L Shou H Wu P 22882529 PubMed The putative auxin efflux carrier OsPIN3t is involved in the drought stress response and drought tolerance. Plant J 2012 Zhang Q Li J Zhang W Yan S Wang R Zhao J Li Y Qi Z Sun Z Zhu Z transport pathway PW:0000103 Pathway Ontology 25311360 PubMed OsAUX1 controls lateral root initiation in rice (Oryza sativa L.). Plant Cell Environ 2014 Zhao H Ma T Wang X Deng Y Ma H Zhang R Zhao J 21777365 PubMed Over-expression of OsPIN2 leads to increased tiller numbers, angle and shorter plant height through suppression of OsLAZY1. Plant Biotechnol J 2012 Chen Y Fan X Song W Zhang Y Xu G 25177324 PubMed The role of auxin transporters in monocots development. Front Plant Sci 2014 Balzan S Johal GS Carraro N 25888593 PubMed A strigolactone signal is required for adventitious root formation in rice. Ann Bot 2015 Sun H Tao J Hou M Huang S Chen S Liang Z Xie T Wei Y Xie X Yoneyama K Xu G Zhang Y 19825657 PubMed Expression of PIN genes in rice (Oryza sativa L.): tissue specificity and regulation by hormones. Mol Plant 2009 Wang JR Hu H Wang GH Li J Chen JY Wu P