A previous work inferred that the nifA gene of Enterobacter cloacae did not restore the symbiotic phenotype of Sinorhizobium meliloti nifA mutant. In the present study, two nifA genes of Bradyrhizobiurn japonicum and Mesorhizobium huakuii also did not restore the symbiotic phenotype of S. meliloti nifA mutant. In whole genomic microarray experiments, 238 genes were found to be differentially expressed after S. meliloti nifA had been constitutively expressed in its nifA mutant. In contrast, only 20, 7 and 9 genes changed their transcriptional levels when expressing B. japonium, M. huakuii and Enterobacter cloacae nifA genes in Sm nifA mutant separately. These genes were classified into severai functional groups including house keeping, energy and central intermediary metabolism, transport systems and symbiosis. Interestingly, the genes that of nifH operons showed high expression levels in the presence of either B. japonium or M. huakuii NifA, which was confirmed by subsequent lacZ fusion experiments.
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Univ Nacl Gen San Martin UNSAM, IIB, INTI, Consejo Nacl Invest Cient & Tecn,INTECH, Buenos Aires, DF, ArgentinaUniv Nacl Gen San Martin UNSAM, IIB, INTI, Consejo Nacl Invest Cient & Tecn,INTECH, Buenos Aires, DF, Argentina
Iannino, Florencia
Ugalde, Rodolfo A.
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Univ Nacl Gen San Martin UNSAM, IIB, INTI, Consejo Nacl Invest Cient & Tecn,INTECH, Buenos Aires, DF, ArgentinaUniv Nacl Gen San Martin UNSAM, IIB, INTI, Consejo Nacl Invest Cient & Tecn,INTECH, Buenos Aires, DF, Argentina
Ugalde, Rodolfo A.
Inon de Iannino, Nora
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Univ Nacl Gen San Martin UNSAM, IIB, INTI, Consejo Nacl Invest Cient & Tecn,INTECH, Buenos Aires, DF, ArgentinaUniv Nacl Gen San Martin UNSAM, IIB, INTI, Consejo Nacl Invest Cient & Tecn,INTECH, Buenos Aires, DF, Argentina
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Helmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, Germany
Univ Zagreb, Dept Microbiol, Fac Agr, Zagreb 10000, CroatiaHelmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, Germany
Babic, Katarina Huic
Schauss, Kristina
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Helmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, GermanyHelmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, Germany
Schauss, Kristina
Hai, Brigitte
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Helmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, GermanyHelmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, Germany
Hai, Brigitte
Sikora, Sanja
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Univ Zagreb, Dept Microbiol, Fac Agr, Zagreb 10000, CroatiaHelmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, Germany
Sikora, Sanja
Redzepovic, Sulejman
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Univ Zagreb, Dept Microbiol, Fac Agr, Zagreb 10000, CroatiaHelmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, Germany
Redzepovic, Sulejman
Radl, Viviane
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Helmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, GermanyHelmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, Germany
Radl, Viviane
Schloter, Michael
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Helmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, GermanyHelmholtz Zentrum Munchen, German Res Ctr Environm Hlth, Dept Terr Ecogenet, Inst Soil Ecol, D-85764 Neuherberg, Germany