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Response of Bradyrhizobium japonicum wild type and mutant strains to genistein

ABSTRACT: This SuperSeries is composed of the following subset Series: GSE8570: Comparison of B. japonicum mutant strain Δ901 induced versus wild type uninduced GSE8571: Comparison of B. japonicum 110spc4 (wild type) induced versus uninduced GSE8572: Comparison of B. japonicum mutant strain 613 induced versus wild type uninduced Keywords: SuperSeries Refer to individual Series

ORGANISM(S): Bradyrhizobium japonicum

SUBMITTER: Michael Göttfert

PROVIDER: E-GEOD-8580 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The genistein stimulon of Bradyrhizobium japonicum.

Lang Kathrin K Lindemann Andrea A Hauser Felix F Göttfert Michael M

Molecular genetics and genomics : MGG 20080124 3

An initializing step in the rhizobia-legume symbiosis is the secretion of flavonoids by plants that leads to the expression of nodulation genes in rhizobia. Here we report the genome-wide transcriptional response of Bradyrhizobium japonicum to genistein, an isoflavone secreted by soybean. About 100 genes were induced in the wild type. This included all nod box-associated genes, the flagellar cluster and several genes that are likely to be involved in transport processes. To elucidate the role of ...[more]

PMID: 18214545

Similar Datasets

Comparison of B. japonicum 110spc4 (wild type) induced versus uninduced

Project description:An initializing step in the rhizobia-legume symbiosis is the secretion of flavonoids by plants that leads to the expression of nodulation genes in rhizobia. Here we report the genome-wide transcriptional response of Bradyrhizobium japonicum to genistein, an isoflavone secreted by soybean. About 100 genes were induced in the wild type. This included all nod box-associated genes, the flagellar cluster and several genes that are likely to be involved in transport processes. To elucidate the role of known regulators, we analysed mutant strains. This revealed that the two-component response regulator NodW is essential for induction of almost all genistein-inducible genes, with the exception of 8 genes. The phenotype of the nodW mutant could be partially suppressed by overexpression of NwsB, which is also a two-component response regulator. These data indicate that genistein has a much broader function than mere induction of nod genes. Keywords: transcriptional analysis, genistein induction 3 biological replicates of wild type uninduced and wild type induced with genistein were compared.

2007-10-15 | E-GEOD-8571 | biostudies-arrayexpress

Comparison of B. japonicum mutant strain 613 induced versus wild type uninduced

Project description:An initializing step in the rhizobia-legume symbiosis is the secretion of flavonoids by plants that leads to the expression of nodulation genes in rhizobia. Here we report the genome-wide transcriptional response of Bradyrhizobium japonicum to genistein, an isoflavone secreted by soybean. About 100 genes were induced in the wild type. This included all nod box-associated genes, the flagellar cluster and several genes that are likely to be involved in transport processes. To elucidate the role of known regulators, we analysed mutant strains. This revealed that the two-component response regulator NodW is essential for induction of almost all genistein-inducible genes, with the exception of 8 genes. The phenotype of the nodW mutant could be partially suppressed by overexpression of NwsB, which is also a two-component response regulator. These data indicate that genistein has a much broader function than mere induction of nod genes. Keywords: transcriptional analysis, genistein induction 3 biological replicates of wild type (uninduced) and mutant strain 613 (nodW mutant; induced with genistein) were compared.

2007-10-15 | E-GEOD-8572 | biostudies-arrayexpress

Comparison of B. japonicum mutant strain M-NM-^T901 induced versus wild type uninduced

Project description:An initializing step in the rhizobia-legume symbiosis is the secretion of flavonoids by plants that leads to the expression of nodulation genes in rhizobia. Here we report the genome-wide transcriptional response of Bradyrhizobium japonicum to genistein, an isoflavone secreted by soybean. About 100 genes were induced in the wild type. This included all nod box-associated genes, the flagellar cluster and several genes that are likely to be involved in transport processes. To elucidate the role of known regulators, we analysed mutant strains. This revealed that the two-component response regulator NodW is essential for induction of almost all genistein-inducible genes, with the exception of 8 genes. The phenotype of the nodW mutant could be partially suppressed by overexpression of NwsB, which is also a two-component response regulator. These data indicate that genistein has a much broader function than mere induction of nod genes. Keywords: transcriptional analysis, genistein induction 3 biological replicates of wild type (uninduced) and mutant strain M-NM-^T901 (overexpressed nwsB; induced with genistein) were compared.

2007-10-14 | E-GEOD-8570 | biostudies-arrayexpress

Bradyrhizobium japonicum

Project description:Comparison of B. japonicum 110spc4 (wild type) induced versus uninduced

| PRJNA105267 | ENA

Bradyrhizobium japonicum

Project description:Comparison of B. japonicum mutant strain Δ901 induced versus wild type uninduced

| PRJNA105385 | ENA

Bradyrhizobium japonicum

Project description:Comparison of B. japonicum mutant strain 613 induced versus wild type uninduced

| PRJNA105269 | ENA

B. thetaiotaomicron or B. longum mono-association vs. bi-association

Project description:This SuperSeries is composed of the following subset Series: GSE5865: B.thetaiotaomicron or B. longum mono-association versus B. thetaiotaomicron/B. longum co-colonization, PR chow, NMRI GSE5866: B.thetaiotaomicron mono-association versus B. thetaiotaomicron co-colonization with B. longum, PR chow, B6 GSE5867: B.thetaiotaomicron mono-association versus B. thetaiotaomicron co-colonization with B. animalis or L. casei, PR chow, B6 Refer to individual Series

2010-07-01 | E-GEOD-5869 | biostudies-arrayexpress

Over-expression of ODDSOC2 in Golden Promise

Project description:Comparison of wild type barley plants versus plants over-expressing ODDSOC2; a vernalization responsive MADS box gene ****[PLEXdb(http://www.plexdb.org) has submitted this series at GEO on behalf of the original contributor, Aaron Greenup. The equivalent experiment is BB93 at PLEXdb.] genotype: Wild-Type(3-replications); genotype: Over-expression(3-replications)

2010-05-12 | E-GEOD-21804 | biostudies-arrayexpress

B.thetaiotaomicron mono-association versus B. thetaiotaomicron co-colonization with B. longum, PR chow, B6

Project description:Genome wide transcriptional comparison of B. thetaiotaomicron mono-association vs. B. thetaiotaomicron bi-association with B. longum. Cecal populations from 10d colonizations with b6 gnotobiotic mice fed a standard-chow polysaccharide rich (PR) diet (n=5 samples/group) were profiled. Total RNA was prepared from cecal contents of 10 day associated gnotobiotic mice and hybridized to B. thetaiotaomicron/B. longum GeneChips.

2010-07-01 | E-GEOD-5866 | biostudies-arrayexpress

B.thetaiotaomicron mono-association versus B. thetaiotaomicron co-colonization with B. animalis or L. casei, PR chow, B6

Project description:Genome wide transcriptional comparison of B. thetaiotaomicron mono-association vs. B. thetaiotaomicron bi-association with B.animalis or L. casei. Cecal populations from 20d colonizations with B6 gnotobiotic mice fed a standard-chow polysaccharide rich (PR) diet (n=5 samples/group) were profiled. Total RNA was prepared from cecal contents of 20 day associated gnotobiotic mice and hybridized to B. thetaiotaomicron/B. longum GeneChips.

2010-07-01 | E-GEOD-5867 | biostudies-arrayexpress

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