Zobellia galactanivorans
| Zobellia galactanivorans | |
|---|---|
Scientific classification 
| |
| Domain: | Bacteria |
| Phylum: | Bacteroidota |
| Class: | Flavobacteriia |
| Order: | Flavobacteriales |
| Family: | Flavobacteriaceae |
| Genus: | Zobellia |
| Species: | Z. galactanivorans
|
| Binomial name | |
| Zobellia galactanivorans Barbeyron et al., 2001
| |
Zobellia galactanivorans is a gram-negative marine bacterium isolated from the surface of red algae of the coast of France. Z. galactanivorans forms yellow colonies with a bacillus or diplobacillus morphology. Furthermore, it is mesophilic and can grow degrade carrageenans and agars - both found in the cell wall of red algae.[1] Z. galactanivorans contains the gene porA and porB, each encoding a β-porphyranase.[2]
β-porphyranase
[edit]porA and porB are catalytic enzymes that hydrolyze the β-D-galactopyranose (1→4) α-L-galactopyranose-6-sulfate linkage in porphyran.[3] There is a 35% sequence similarity between β-Porphyranase-B and β-Porphyranase-A. [3]
Horizontal gene transfer
[edit]Orthologs between Z. galactanivorans and Bacteroides plebeius-1698, a strain of Bacteroides plebeius, contain a sequence similarity of 48%-69%.[3] Homologous genes between other Bacteroides species only have a 30% sequence similarity.[3] Moreover, porphyranase genes in both Z. galactanivorans and B. plebeius are located in similar orders along their chromosome, or are syntenic.
References
[edit]- ^ Barbeyron T, L'Haridon S, Corre E, Kloareg B, Potin P (May 2001). "Zobellia galactanovorans gen. nov., sp. nov., a marine species of Flavobacteriaceae isolated from a red alga, and classification of [Cytophaga] uliginosa (ZoBell and Upham 1944) Reichenbach 1989 as Zobellia uliginosa gen. nov., comb. nov". International Journal of Systematic and Evolutionary Microbiology. 51 (Pt 3): 985–97. doi:10.1099/00207713-51-3-985. PMID 11411725.
- ^ Hehemann JH, Correc G, Thomas F, Bernard T, Barbeyron T, Jam M, Helbert W, Michel G, Czjzek M (August 2012). "Biochemical and structural characterization of the complex agarolytic enzyme system from the marine bacterium Zobellia galactanivorans". The Journal of Biological Chemistry. 287 (36): 30571–84. doi:10.1074/jbc.M112.377184. PMC 3436304. PMID 22778272.
- ^ a b c d Hehemann JH, Correc G, Barbeyron T, Helbert W, Czjzek M, Michel G (April 2010). "Transfer of carbohydrate-active enzymes from marine bacteria to Japanese gut microbiota". Nature. 464 (7290): 908–12. Bibcode:2010Natur.464..908H. doi:10.1038/nature08937. PMID 20376150. S2CID 2820027.