Article
Arabidopsis H+-PPase AVP1 regulates auxin-mediated organ development.
Science (New York, N.Y.) - 7 Oct 2005
Li Jisheng, Yang Haibing, Peer Wendy Ann, Richter Gregory, Blakeslee Joshua, Bandyopadhyay Anindita, Titapiwantakun Boosaree, Undurraga Soledad, Khodakovskaya Mariya, Richards Elizabeth L, Krizek Beth, Murphy Angus S, Gilroy Simon, Gaxiola Roberto
Abstract excerpt
The transport of auxin controls developmental events in plants. Here, we report that in addition to maintaining vacuolar pH, the H+-pyrophosphatase, AVP1, controls auxin transport and consequently auxin-dependent development. AVP1 overexpression results in increased cell division at the onset of organ formation, hyperplasia, and increased auxin transport. In contrast, avp1-1 null mutants have severely disrupted...
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