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ER-localized auxin transporter PIN8 regulates auxin homeostasis and male gametophyte development in Arabidopsis

Ding, Zhaojun ; Wang, Bangjun ; Moreno, Ignacio ; Dupláková, Nikoleta ; Simon, Sibu ; Carraro, Nicola ; Reemmer, Jesica ; Pěnčík, Aleš ; Chen, Xu ; Tejos, Ricardo ; Skůpa, Petr ; Pollmann, Stephan ; Mravec, Jozef ; Petrášek, Jan ; Zažímalová, Eva ; Honys, David ; Rolčík, Jakub ; Murphy, Angus ; Orellana, Ariel ; Geisler, Markus ; Friml, Jiří

In: Nature Communications, 2012, p. -

Auxin is a key coordinative signal required for many aspects of plant development and its levels are controlled by auxin metabolism and intercellular auxin transport. Here we find that a member of PIN auxin transporter family, PIN8 is expressed in male gametophyte of Arabidopsis thaliana and has a crucial role in pollen development and functionality. Ectopic expression in sporophytic tissues...