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Table 6 Azospirillum TCS orthologues with inferred biological functions

From: Genome-wide survey of two-component signal transduction systems in the plant growth-promoting bacterium Azospirillum

Genea

Labelb

BBH (% amino acid identity)c

Putative functions

Relevant feature

References

chvG chvI

AZOLI_2965 AZOLI_2966

Rhodospirillum centenum (60 %) Rhodospirillum centenum (84 %)

Virulence and TVISS regulation in A. tumefaciens Biofilm and motility in S. meliloti

Conserved in members of the α-proteobacteria

[68] [66]

phoR phoB

AZOLI_3010 AZOLI_3109

Rhodospirillum centenum (54 %) Rhodopseudomonas palustris (65 %)

Virulence and survival in Vibrio cholerae Biofilm formation in P. fluorescens

phoB located upstream a putative pst ABC transporter

[69] [64]

dctB dctD

AZOLI_p10629 AZOLI_p10628

Arhodomonas aquaeolei (60 %) Pseudomonas fuscovaginae (43 %)

Root colonization and beneficial properties in P. chlororaphis C4-dicarboxylate transport and nitrogen fixation in rhizobia

Located upstream of a putative dctA transporter

[70] [71]

ntrB ntrC

AZOLI_1342 AZOLI_1343

Rhodospirillum centenum (73 %) Rhodospirillum centenum (83 %)

Regulation of nitrogen metabolism, nitrate utilization and ammonium transport

Clustered with ntrXY

[59]

ntrX ntrY

AZOLI_1344 AZOLI_1345

Rhodospirillum centenum (62 %) Rhodospirillum centenum (83 %)

Regulation of nitrogen metabolism, nitrate utilization and ammonium transport

Clustered with ntrBC

[60]

kdpD kdpE

AZOLI_p20517 AZOLI_p20518

Pseudaminobacter salicylatoxidans (76 %) Rhodospirillum bacterium URHD0088 (64 %)

Potassium transport and virulence in S. aureus Osmoadaptation and symbiosis in S. meliloti

Located next to kdpABC encoding a potassium pump

[72] [61]

lytS lytR

AZOLI_p50421 AZOLI_p50422

Rhodospirillum rubrum (74 %) Rhodospirillum rubrum (73 %)

Carbon control network in E. coli Virulence in S. aureus

Located next to genes encoding a putative MDR efflux pump

[73] [67]

flcA

AZOLI_1403

Rhodospirillum centenum (65 %)

Flocculation and root colonization in A. brasilense

Orphan RR

[74]

bphP1

AZOLI_p20424

Stenotrophomonas maltophilia (53 %)

Light-stress tolerance and motility in A. brasilense

Organized in a triad of TCS (HyHK-RR-Bph1)

[48]

  1. aFor each pair, the first gene encodes the HK whereas the second gene encodes the RR
  2. bLabels refer to genes of A. lipoferum 4B. Labels of the orthologues of other Azospirillum strains can be found in Additional file 3: Table S2; Additional file 4: Table S3; Additional file 5: Table S4 and Additional file 6: Table S5
  3. c A. lipoferum 4B amino acid sequences were used as queries
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BMC Genomics

ISSN: 1471-2164

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