Exemplar Abstract for Rhizobium fredii Scholla and Elkan 1984, Sinorhizobium fredii (Scholla and Elkan 1984) Chen et al. 1988 emend. De Lajudie et al. 1994 and Ensifer fredii Young 2003 emend. Hördt et al. 2020.

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Dorothea Taylor ◽  
George M Garrity
Keyword(s):  
Sinorhizobium Fredii ◽  
Rhizobium Fredii

scholarly journals Characterization of the Overlapping Promoters of nolB and nolW, Two Soybean Cultivar Specificity Genes from Rhizobium fredii Strain USDA257

1997 ◽  
Vol 10 (1) ◽  
pp. 138-141 ◽  
Author(s):  
Jun Gu ◽  
Pedro A. Balatti ◽  
Hari B. Krishnan ◽  
Steven G. Pueppke
Keyword(s):  
Regulatory Gene ◽  
Initiation Site ◽  
Dual Control ◽  
Start Site ◽  
Rhizobium Fredii ◽  
Normal Expression ◽  
Transcript Initiation ◽  
Cultivar Specificity ◽  
Transcript Start Site

The transcripts of nolW and nolB, two divergently oriented cultivar specificity genes of Rhizobium fredii strain USDA257, are known to be initiated 14 bp apart from promoters that face one another. We show here that expression of nolB is dependent both on induction with flavonoid signals and on the regulatory gene, nodD1. Expression of nolW is constitutive and independent of flavonoids and nodD1. Normal expression of nolB is retained with a promoter that extends only 61 bp upstream of the transcript start site, but it is lost if an additional 24 bp are removed. Substantial expression of nolW is retained with a promoter that contains only 34 bp of DNA upstream from the transcript initiation site. The dual control region for the two genes is thus only about 109 bp in length.

Transcriptional organization and expression of noIXWBTUV, a locus that regulates cultivar-specific nodulatlon of soybean by Rhizobium fredii USDA257

1995 ◽  
Vol 17 (5) ◽  
pp. 923-933 ◽  
Author(s):  
Laszlo G. Kovacs ◽  
Pedro A. Balatti ◽  
Hari B. Krishnan ◽  
Steven G. Pueppke
Keyword(s):  
Rhizobium Fredii

scholarly journals Complete Genome Sequence of the Broad-Host-Range Strain Sinorhizobium fredii USDA257

2012 ◽  
Vol 194 (16) ◽  
pp. 4483-4483 ◽  
Author(s):  
J. Schuldes ◽  
M. Rodriguez Orbegoso ◽  
C. Schmeisser ◽  
H. B. Krishnan ◽  
R. Daniel ◽  
...  
Keyword(s):  
Host Range ◽  
Genome Sequence ◽  
Complete Genome Sequence ◽  
Complete Genome ◽  
Broad Host Range ◽  
Sinorhizobium Fredii

Cloning and Expression in Pseudomonas putida of Two of the Histidine Utilization Genes from Rhizobium fredii

1997 ◽  
Vol 34 (1) ◽  
pp. 55-60
Author(s):  
Robert R. Burke ◽  
Diana D. Heard ◽  
Anthony J. Nieuwkoop
Keyword(s):  
Pseudomonas Putida ◽  
Cloning And Expression ◽  
Rhizobium Fredii

Incompatibility may not be the rule in the Sinorhizobium fredii –soybean interaction

2001 ◽  
Vol 33 (6) ◽  
pp. 837-840 ◽  
Author(s):  
L.B. Videira ◽  
G.N. Pastorino ◽  
P.A. Balatti
Keyword(s):  
Sinorhizobium Fredii

scholarly journals Proteomics and lipidomics integrated analysis of outer membrane vesicles indicates that glycerophospholipid metabolism contributes to the early symbiosis between Sinorhizobium fredii HH103 and soybean

2022 ◽  
Author(s):  
Dongzhi Li ◽  
Ziqi Li ◽  
Jing Wu ◽  
Zhide Tang ◽  
Fuli Xie ◽  
...  
Keyword(s):  
Outer Membrane ◽  
Root Hairs ◽  
Membrane Vesicles ◽  
Outer Membrane Vesicles ◽  
Integrated Analysis ◽  
Two Component System ◽  
Sinorhizobium Fredii ◽  
Peptidoglycan Biosynthesis ◽  
Functional Studies ◽  
Flagellar Assembly

Gram-negative bacteria can produce outer membrane vesicles (OMVs), and most functional studies of OMVs have been focused on mammalian-bacterial interactions. However, research on the OMVs of rhizobia is still limited so far. In this work, we isolated and purified OMVs from Sinorhizobium fredii HH103 under free-living conditions that was set as control (C-OMVs) and symbiosis-mimicking conditions that was induced by genistein (G-OMVs). The soybean roots treated with G-OMVs displayed significant deformation of root hairs. G-OMVs significantly induced the expression of nodulation genes related to early symbiosis, while inhibited that of the defense genes of soybean. Proteomics analysis identified a total of 93 differential proteins between C-OMVs and G-OMVs, which are mainly associated with ribosome synthesis, flagellar assembly, two-component system, ABC transporters, oxidative phosphorylation, nitrogen metabolism, quorum sensing, glycerophospholipid metabolism and peptidoglycan biosynthesis. A total of 45 differential lipids were identified in lipidomics analysis. Correlation analysis of OMV proteome and lipidome data revealed that glycerophospholipid metabolism is the enriched KEGG metabolic pathway, and the expression of phosphatidylserine decarboxylase was significantly up-regulated in G-OMVs. The changes in three lipids related to symbiosis in the glycerophospholipid metabolism pathway were verified by ELISA. Our results indicate that glycerophospholipid metabolism contributes to rhizobia-soybean symbiosis via OMVs.

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