Aguilar OM, Reilander H, Arnold W, Pühler A (1987) Rhizobium meliloti nifN (fixF) gene is part of an operon regulated by a nifA dependent promoter and codes for a polypeptide homologous to the nifK gene product. J Bacteriol 169:5393–5400
Google Scholar
Banfalvi Z, Kondorosi A (1989) Production of root hair deformation factors by Rhizobium meliloti nodulation genes in Escherichia coli:hsnD (nodH) is involved in the plant host specific modification of the nodABC factor. Plant Mol Biol 13:1–12
Google Scholar
Banfalvi Z, Randhawa GS, Kondorosi E, Kiss A, Kondorosi A (1983) Construction and characterization of R prime plasmids carrying symbiotic genes of Rhizobium meliloti. Mol Gen Genet 189:129–135
Google Scholar
Berg DE, Weiss A, Crossland L (1980) Polarity of Tn5 insertion mutations in Escherichia coli. J Bacteriol 142:439–446
Google Scholar
Beringer JE, Beynon JL, Buchanan-Wollaston AV, Johnston AWB (1978) Transfer of the drug resistance transposon Tn5 to Rhizobium. Nature 276:633–634
Google Scholar
Casadaban MJ (1975) Fusion of the Escherichia coli lac genes to the ara promoter: A general technique using bacteriophage Mu-1 insertions. Proc Natl Acad Sci USA 72:809–813
Google Scholar
Casadaban MJ (1976) Transposition and fusion of the lac genes to selected promoters in Escherichia coli using bacteriophage lambda and Mu. J Mol Biol 104:541–555
Google Scholar
Cervantes E, Sharma SB, Maillet F, Vasse J, Truchet G, Rosenberg C (1989) The Rhizobium meliloti host range nodQ gene encodes a protein which shares homology with translation elongation and initiation factors. Mol Microbiol 3:745–755
Google Scholar
Chang ACY, Cohen SN (1978) Construction and characterization of amplifiable multicopy DNA cloning vehicles derived from the p15A cryptic miniplasmid. J Bacteriol 134:1141–1156
Google Scholar
Corbin D, Barran L, Ditta G (1983) Organization and expression of Rhizobium meliloti nitrogen fixation genes. Proc Natl Acad Sci USA 80:3005–3009
Google Scholar
Corpet F (1988) Multiple sequence alignment with hierarchical clustering. Nucleic Acids Res 16:10881–10890
Google Scholar
Debellé F, Rosenberg C, Vasse J, Maillet F, Martinez E, Dénarié J, Truchet G (1986) Assignment of symbiotic developmental phenotypes to common and specific nodulation (nod) genetic loci of Rhizobium meliloti. J Bacteriol 168:1075–1086
Google Scholar
de Bruijn FJ, Lupski JR (1984) The use of transposon Tn5 mutagenesis in the rapid generation of correlated physical and genetic map of DNA segments cloned into multicopy plasmids — a review. Gene 27:131–149
Google Scholar
Ditta G, Stanfield S, Corbin D, Helinski DR (1980) Broad host range DNA cloning system for gram-negative bacteria: construction of a gene bank of Rhizobium meliloti. Proc Natl Acad Sci USA 77:7347–7351
Google Scholar
Downie JA (1989) The nodL gene from Rhizobium leguminosarum is homologous to the acetyl transferases encoded by lacA and cysE. Mol Microbiol 3:1649–1651
Google Scholar
Economou A, Hamilton WDO, Johnston AWB, Downie JA (1990) The Rhizobium nodulation gene nodO encodes a Ca2+-binding protein that is exported without N-terminal cleavage and is homologous to haemolysin and related proteins. EMBO J 9:349–354
Google Scholar
Faucher C, Maillet F, Vasse J, Rosenberg C, Van Brussel AAN, Truchet G, Dénarié J (1988) Rhizobium meliloti host range nodes gene determines production of an alfalfa-specific extracellular signal. J Bacteriol 170:5489–5499
Google Scholar
Fickett JW (1982) Recognition of protein coding regions in DNA sequences. Nucleic Acids Res 10:5302–5318
Google Scholar
Figurski DH, Helinski DR (1979) Replication of an origin-containing derivative of plasmid RK2 dependent on a plasmid function provided in trans. Proc Natl Acad Sci USA 76:1648–1652
Google Scholar
Fisher F, Egelhoff TT, Mulligan JT, Long SR (1988) Specific binding of proteins from Rhizobium meliloti cell-free extracts containing nodD to DNA sequences upstream of inducible nodulation genes. Genes Dev 2:282–293
Google Scholar
Gerhold D, Stacey G, Kondorosi A (1989) Use of a promoter-specific probe to identify two loci from the Rhizobium meliloti nodulation regulon. Plant Mol Biol 12:181–188
Google Scholar
Ghosh S, Blumental HJ, Davidson E, Roseman S (1960) Glucosamine metabolism V Enzymatic synthesis of glucosamine-6-phosphate. J Biol Chem 235:1265–1273
Google Scholar
Henikoff S (1987) Unidirectional digestion with Exonuclease III in DNA sequence analysis. Methods Enzymol 155:156–165
Google Scholar
Hong GF, Burn JE, Johnston AWB (1987) Evidence that DNA involved in the expression of nodulation (nod) genes in Rhizobium binds to the product of the regulatory gene nodD. Nucleic Acids Res 15:9677–9689
Google Scholar
Horvath B, Kondorosi E, John M, Schmidt J, Török I, Györgypal Z, Barabas I, Wieneke U, Schell J, Kondorosi A (1986) Organization, structure and symbiotic function of Rhizobium meliloti nodulation genes determining host specificity for alfalfa. Cell 46:335–343
Google Scholar
Horvath B, Bachem C, Schell J, Kondorosi A (1987) Host specific regulation of nodulation genes in Rhizobium is mediated by a plant signal, interacting with the nodD gene product. EMBO J 6:841–848
Google Scholar
Kondorosi A, Svab Z, Kiss GB, Dixon RA (1977) Ammonia assimilation and nitrogen fixation in Rhizobium meliloti. Mol Gen Genet 151:221–226
Google Scholar
Kondorosi E, Banfalvi Z, Kondorosi A (1984) Physical and genetic analysis of a symbiotic region of Rhizobium meliloti: Identification of nodulation genes. Mol Gen Genet 193:445–452
Google Scholar
Kondorosi E, Gyuris J, Schmidt J, John M, Duda E, Hoffmann B, Schell J, Kondorosi A (1989) Positive and negative control of nod gene expression in Rhizobium meliloti is required for optimal nodulation. EMBO J 8:1331–1340
Google Scholar
Laemmli UK (1970) Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature 227:680–685
Google Scholar
Lerouge P, Roche P, Faucher C, Maillet F, Truchet G, Prome JC, Dénarié J (1990) Symbiotic host-specificity of Rhizobium meliloti is determined by a sulphated and acylated oligosaccharide signal. Nature 344:781–784
Google Scholar
Long SR (1989) Rhizobium-legume nodulation: Life together in the underground. Cell 56:203–214
Google Scholar
Maentsaelae P, Zalkin H (1984) Glutamine nucleotide sequence of Saccharomyces cerevisiae ADE4 encoding phosphoribosyl-pyrophosphate amidotransferase. J Biol Chem 259:8478–8484
Google Scholar
Maniatis T, Fritsch EF, Sambrook J (1982) Molecular cloning: A laboratory manual, Cold Spring Harbor Laboratory Press, Cold Spring Harbor, NY
Google Scholar
Miller JH (1972) Experiments in molecular genetics. Cold Spring Harbor Laboratory Press, Cold Spring Harbor, NY
Google Scholar
Mount DW, Conrad B (1984) Microcomputer programs for graphic analysis of nucleic acid and protein sequences. Nucleic Acids Res 12:811–817
Google Scholar
Mulligan JT, Long SR (1985) Induction of Rhizobium meliloti nodC expression by plant exudate requires nodD. Proc Natl Acad Sci USA 82:6609–6613
Google Scholar
Petersen GB, Stockwell PA, Hill DF (1988) Messenger RNA recognition in Escherichia coli: a possible second site of interaction with 16S ribosomal RNA. EMBO J 7:3957–3962
Google Scholar
Putnoky P, Kondorosi A (1986) Two gene clusters of Rhizobium meliloti code for early essential nodulation functions and a third influences nodulation efficiency. J Bacteriol 167:881–887
Google Scholar
Ratet P, Schell J, de Bruijn FJ (1988) Mini-Mu lac transposons with broad-host-range origins of conjugal transfer and replication designed for gene regulation studies in Rhizobiaceae. Gene 63:41–52
Google Scholar
Rose RE (1988) The nucleotide sequence of pACYC184. Nucleic Acids Res 16:355
Google Scholar
Rostas K, Kondorosi E, Horvath B, Simoncsits A, Kondorosi A (1986) Conservation of extended promoter regions of nodulation genes in Rhizobium. Proc Natl Acad Sci USA 83:1757–1761
Google Scholar
Ruvkun GB, Ausubel FM (1981) A general method for site-directed mutagenesis in procaryotes. Nature 289:85–88
Google Scholar
Sanger F, Nicklen S, Coulson AR (1977) DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci USA 74:5463–5467
Google Scholar
Schmidt J, John M, Kondorosi E, Kondorosi A, Wieneke U, Schröder G, Schröder J, Schell J (1984) Mapping of the proteincoding regions of Rhizobium meliloti common nodulation genes. EMBO J 3:1705–1711
Google Scholar
Schmidt J, Wingender R, John M, Wieneke U, Schell J (1988) Rhizobium meliloti nodA and nodB genes are involved in generating compounds that stimulate mitosis of plant cells. Proc Natl Acad Sci USA 8:8578–8582
Google Scholar
Schwedock J, Long SR (1990) ATP sulphurylase activity of the nodP and nodQ gene products of Rhizobium meliloti. Nature 348:644–647
Google Scholar
Shearman CA, Rossen L, Johnston AWB, Downie JA (1986) The Rhizobium leguminosarum nodulation gene nodF encodes a polypeptide similar to acyl-carrier protein and its regulated by nodD plus a factor in pea root exudate. EMBO J 5:647–652
Google Scholar
Shine J, Dalgarno L (1974) The 3′-terminal sequence of Escherichia coli 16S ribosomal RNA: complementarity to nonsense triplets and ribosome binding sites. Proc Natl Acad Sci USA 71:1341–1346
Google Scholar
Spaink HP, Wijffelman CA, Pees E, Okker RJH, Lugtenberg BJJ (1987) Rhizobium nodulation gene nodD as a determinant of host specificity. Nature 328:337–340
Google Scholar
Surin BP, Downie JA (1988) Characterization of the Rhizobium leguminosarum genes nodLMN involved in efficient host-specific nodulation. Mol Microbiol 2:173–183
Google Scholar
Tso JY, Salkin H, pan Cleemput M, Yanofsky C, Smith JM (1982) Nucleotide sequence of Escherichia coli purF and deduced amino acid sequence of glutamine phosphoribosylpyrophosphate amidotransferase. J Biol Chem 257:3525–3531
Google Scholar
Vollmer SJ, Switzer RL, Hermodson MA, Bower SG, Zalkin H (1983) The glutamine-utilizing site of Bacillus subtilis glutamine phosphoribosylpyrophosphate amidotransferase. J Biol Chem 258:10582–10585
Google Scholar
Von Heijne G (1986) A new method for predicting signal sequence cleavage sites. Nucleic Acids Res 14:4683–4690
Google Scholar
Walker JF, Gay NJ, Saraste M, Eberle AN (1984) DNA sequence around the Escherichia coli unc operon. Biochem J 224:799–815
Google Scholar
Wu HC, Wu TC (1971) Isolation and characterization of a glucosamine-requiring mutant of Escherichia coli K12 defective in glucosamine-6-phosphate synthetase. J Bacteriol 105:455–466
Google Scholar
Yanisch-Perron C, Vieira J, Messing J (1985) Improved M13 phage cloning vectors and host strains: nucleotide sequence of the M13mp18 and pUC19 vectors. Gene 33:103–119
Google Scholar
Zaat SAJ, Van Brussel AAN, Tak T, Pees E, Lugtenberg BJJ (1987) Induction of the promoter of Rhizobium leguminosarum sym plasmid pRL1JI by plant flavanones and flavones. J Bacteriol 169:3388–3391
Google Scholar