Carter, R. A., Yeoman, K. H., Klein, A., Hosie, A. H. F., Sawers, G., Poole, P. S. and Johnston, A. W. B. (2002) dpp genes of Rhizobium leguminosarum specify uptake of δ-aminolevulinic acid. Molecular Plant-Microbe Interactions, 15 (1). pp. 69-74. ISSN 0894-0282
Carter, R.A., Worsley, P.S., Sawers, G., Challis, G.L., Dilworth, M.J., Carson, K.C., Lawrence, J.A., Wexler, M., Johnston, A.W.B. and Yeoman, K.H. (2002) The vbs genes that direct synthesis of the siderophore vicibactin in Rhizobium leguminosarum: their expression in other genera requires ECF s factor Rpol. Molecular Microbiology, 44 (5). pp. 1153-1166. ISSN 0950-382X
Carter, R.A., Yeoman, K.H., Klein, A., Hosie, A.H.F., Sawers, G., Poole, P.S and Johnston, A.W.B. (2002) dpp genes of Rhizobium leguminosarum specify uptake of delta-aminolevulinic acid. Molecular Plant-Microbe Interactions, 15. pp. 69-74. ISSN 1943-7706