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@article{1710076, author = {Zhang, Xixi and Adamowski, Maciek and Marhava, Petra and Tan, Shutang and Zhang, Yuzhou and Rodriguez, Lesia and Zwiewka, Marta and Pukyšová, Vendula and Sanchez Cerdan, Asier and Raxwal, Vivek Kumar and Hardtke, Christian S. and Nodzynski, Tomasz and Friml, Jiří}, article_location = {Rockville}, article_number = {5}, doi = {http://dx.doi.org/10.1105/tpc.19.00869}, keywords = {P-TYPE ATPASE; TRANS-GOLGI NETWORK; APICAL-BASAL AXIS; GENE-EXPRESSION; PHOSPHOLIPID FLIPPASES; MEDIATES ENDOCYTOSIS; MEMBRANE TRAFFICKING; VACUOLAR TRAFFICKING; PROTEIN TRAFFICKING; BETA-SUBUNIT}, language = {eng}, issn = {1040-4651}, journal = {Plant Cell}, title = {Arabidopsis Flippases Cooperate with ARF GTPase Exchange Factors to Regulate the Trafficking and Polarity of PIN Auxin Transporters}, url = {https://doi.org/10.1105/tpc.19.00869}, volume = {32}, year = {2020} }
TY - JOUR ID - 1710076 AU - Zhang, Xixi - Adamowski, Maciek - Marhava, Petra - Tan, Shutang - Zhang, Yuzhou - Rodriguez, Lesia - Zwiewka, Marta - Pukyšová, Vendula - Sanchez Cerdan, Asier - Raxwal, Vivek Kumar - Hardtke, Christian S. - Nodzynski, Tomasz - Friml, Jiří PY - 2020 TI - Arabidopsis Flippases Cooperate with ARF GTPase Exchange Factors to Regulate the Trafficking and Polarity of PIN Auxin Transporters JF - Plant Cell VL - 32 IS - 5 SP - 1644-1664 EP - 1644-1664 PB - American Society of Plant Biologists SN - 10404651 KW - P-TYPE ATPASE KW - TRANS-GOLGI NETWORK KW - APICAL-BASAL AXIS KW - GENE-EXPRESSION KW - PHOSPHOLIPID FLIPPASES KW - MEDIATES ENDOCYTOSIS KW - MEMBRANE TRAFFICKING KW - VACUOLAR TRAFFICKING KW - PROTEIN TRAFFICKING KW - BETA-SUBUNIT UR - https://doi.org/10.1105/tpc.19.00869 L2 - https://doi.org/10.1105/tpc.19.00869 N2 - Cell polarity is a fundamental feature of all multicellular organisms. PIN auxin transporters are important cell polarity markers that play crucial roles in a plethora of developmental processes in plants. Here, to identify components involved in cell polarity establishment and maintenance in plants, we performed a forward genetic screening of PIN2:PIN1-HA;pin2 Arabidopsis (Arabidopsis thaliana) plants, which ectopically express predominantly basally localized PIN1 in root epidermal cells, leading to agravitropic root growth. We identified the regulator of PIN polarity 12 (repp12) mutation, which restored gravitropic root growth and caused a switch in PIN1-HA polarity from the basal to apical side of root epidermal cells. Next Generation Sequencing and complementation experiments established the causative mutation of repp12 as a single amino acid exchange in Aminophospholipid ATPase3 (ALA3), a phospholipid flippase predicted to function in vesicle formation. repp12 and ala3 T-DNA mutants show defects in many auxin-regulated processes, asymmetric auxin distribution, and PIN trafficking. Analysis of quintuple and sextuple mutants confirmed the crucial roles of ALA proteins in regulating plant development as well as PIN trafficking and polarity. Genetic and physical interaction studies revealed that ALA3 functions together with the ADP ribosylation factor GTPase exchange factors GNOM and BIG3 in regulating PIN polarity, trafficking, and auxin-mediated development. ER -
ZHANG, Xixi, Maciek ADAMOWSKI, Petra MARHAVA, Shutang TAN, Yuzhou ZHANG, Lesia RODRIGUEZ, Marta ZWIEWKA, Vendula PUKYŠOVÁ, Asier SANCHEZ CERDAN, Vivek Kumar RAXWAL, Christian S. HARDTKE, Tomasz NODZYNSKI and Jiří FRIML. Arabidopsis Flippases Cooperate with ARF GTPase Exchange Factors to Regulate the Trafficking and Polarity of PIN Auxin Transporters. \textit{Plant Cell}. Rockville: American Society of Plant Biologists, 2020, vol.~32, No~5, p.~1644-1664. ISSN~1040-4651. Available from: https://dx.doi.org/10.1105/tpc.19.00869.
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