F. succinogenes: Difference between revisions
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==Description and significance== | ==Description and significance== | ||
Fibrobacter succinogenes has been considered as one of the most actively fibrolytic bacteria in the rumen (Forsberg et al. 1997), as this species possesses a varity of fibrolytic enzymes (Malburg & Forsberg 1993; Bera et al. 1999) and is detected in the rumen at high density (Michalet-Doreau et al. 2001; Koike et al. 2003). All previous isolates of this species, comprising 10 strains, use limited soluble substrates such as glucose or short glucose polymer and produce similar fermentation metabolites. Meanwhile, these 10 isolates of F. succinegenes are divided into four different phylogenetic groups (Amann et al. 1992), based on comparative sequence analysis of 16S rRNA gene (16S rDNA). A few differences in phenotypic characters among these four groups have been reported: (i) group 1 is differentiated from the other groups by its pleomorphic coccoid morphology and poor ability to digest cellulose in agar medium (Montgomery et al. 1988); (ii) group 3 is distinguishable from group 2 by production of yellow pigment and requirement for vitamin B12; (iii) groups 2 and 4 cannot be distinguished by any phenotypic characters (Amann et al. 1992). | |||
==Genome structure== | ==Genome structure== | ||
Revision as of 03:50, 24 August 2007
A Microbial Biorealm page on the genus F. succinogenes
Classification (1)
Higher order taxa
cellular organisms; Bacteria; Fibrobacteres/Acidobacteria group; Fibrobacteres; Fibrobacteres (class); Fibrobacterales; Fibrobacteraceae; Fibrobacter
Species
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NCBI: Taxonomy |
Fibrobacter succinogenes
Description and significance
Fibrobacter succinogenes has been considered as one of the most actively fibrolytic bacteria in the rumen (Forsberg et al. 1997), as this species possesses a varity of fibrolytic enzymes (Malburg & Forsberg 1993; Bera et al. 1999) and is detected in the rumen at high density (Michalet-Doreau et al. 2001; Koike et al. 2003). All previous isolates of this species, comprising 10 strains, use limited soluble substrates such as glucose or short glucose polymer and produce similar fermentation metabolites. Meanwhile, these 10 isolates of F. succinegenes are divided into four different phylogenetic groups (Amann et al. 1992), based on comparative sequence analysis of 16S rRNA gene (16S rDNA). A few differences in phenotypic characters among these four groups have been reported: (i) group 1 is differentiated from the other groups by its pleomorphic coccoid morphology and poor ability to digest cellulose in agar medium (Montgomery et al. 1988); (ii) group 3 is distinguishable from group 2 by production of yellow pigment and requirement for vitamin B12; (iii) groups 2 and 4 cannot be distinguished by any phenotypic characters (Amann et al. 1992).
Genome structure
Describe the size and content of the genome. How many chromosomes? Circular or linear? Other interesting features? What is known about its sequence? Does it have any plasmids? Are they important to the organism's lifestyle?
Cell structure and metabolism
Describe any interesting features and/or cell structures; how it gains energy; what important molecules it produces.
Ecology
Describe any interactions with other organisms (included eukaryotes), contributions to the environment, effect on environment, etc.
Pathology
How does this organism cause disease? Human, animal, plant hosts? Virulence factors, as well as patient symptoms.
Application to Biotechnology
Does this organism produce any useful compounds or enzymes? What are they and how are they used?
Current Research
Enter summaries of the most recent research here--at least three required
References
(1) NCBI: Fibrobacter succinogenes, Accessed Aug 22, 2007, <http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=833&lvl=3&lin=f&keep=1&srchmode=1&unlock>
Edited by Woo Cheal Cho, student of Rachel Larsen
