[1] Univ Bordeaux 2, CNRS, Lab Biogenese Membranaire, UMR 5200, F-33076 Bordeaux, France
[2] Donald Danforth Plant Sci Ctr, St Louis, MI USA
[3] Univ N Texas, Dept Biol Sci, Denton, TX 76203 USA
[4] USDA ARS, US Arid Land Agr Res Ctr, Maricopa, AZ 85238 USA
[5] Univ Warwick, Warwick HRI, Wellesbourne CV35 9EF, Warwick, England
[6] Inst Allgemeine Bot, D-22609 Hamburg, Germany