MtLAX 2 , a Functional Homologue of the Arabidopsis Auxin In fl ux Transporter AUX 1 , Is Required for Nodule Organogenesis 1 [ CC-BY ]

Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom (S.R., F.R., J.L., C.-W.L., J.S., D.C., C.B., G.O., J.D.M.); Plant Biology Division, Samuel Roberts Noble Foundation, 2510 Sam Noble Parkway, Ardmore, Oklahoma 73401 (S.R., X.C., J.W.); Department of Molecular Microbiology, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, United Kingdom (S.W., J.A.D.); Plant and Crop Science Division, School of Biosciences, University of Nottingham, Nr Loughborough LE12 5RD, United Kingdom (M.J.B., R.S.); and Babraham Institute, Babraham Hall, Babraham CB22 3AT, United Kingdom (S.W.)