NOVELTY - An isolated Clostridium bacterium comprising a 16S rRNA nucleotide sequence encoded in part by a nucleotide sequence with greater than 99.8% identity to SEQ ID NO. 13, is new. Sequences not defined here may be found at ftp://ftp.wipo.int/pub/published_pct_sequences/publication.    USE - The bacterium is useful for producing fermentation end-product; producing ethanol; and converting organic material into chemical energy; hydrolyzing and fermenting hexose or pentose sugars, cellulosic and/or lignocellulosic material; and for utilizing cellulose or xylose as its sole carbon source. The fermentation end-product is a chemical, a fuel, an alcohol, or 1,4-diacid (succinic, fumaric or malic), 2,5-furan dicarboxylic acid, 3-hydroxy propionic acid, aspartic acid, aspartate, glucaric acid, glutamic acid, glutamate, malate, itaconic acid, levulinic acid, 3-hydroxybutyrolactone, glycerol, sorbitol, xylitol/arabinitol, butanediol, an isoprenoid, a terpene, ethanol, propanol, isopropanol, n-butanol, hydrogen, formic acid, lactic acid acetic acid, formate, lactate or acetate (all claimed).    ADVANTAGE - The invention provides microorganisms useful for increased production of fermentation end products in large-scale continuous fermentations.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are: (1) an isolated Clostridium bacterium comprising a 16S rRNA nucleotide sequence encoded in part by SEQ ID NO. 13; an isolated Clostridium bacterium comprising one or more nucleotide sequences comprising at least 400 nucleotides with at least 90% identity to SEQ ID NO. 17-42, where the nucleotide sequences encode for a protein or protein fragment; an isolated Clostridium bacterium comprising one or more nucleotide sequences comprising at least 400 nucleotides with at least 90% identity to SEQ ID NO. 1, where the nucleotide sequences encode for a protein or protein fragment; an isolated Clostridium bacterium comprising: (a) a 16S rRNA nucleotide sequence encoded in part by a nucleotide sequence with greater than 90% identity to SEQ ID NO. 13; and (b) one or more nucleotide sequences comprising at least 400 nucleotides with at least 90% identity to SEQ ID NO. 17-42, where the nucleotide sequence encodes for a protein or protein fragment; an isolated Clostridium bacterium comprising: (a) a 16S rRNA nucleotide sequence encoded in part by a nucleotide sequence with greater than 90% identity to SEQ ID NO. 13; and (b) one or more nucleotide sequences comprising at least 400 nucleotides with at least 90% identity to SEQ ID NO. 1, where the nucleotide sequences encode for a protein or protein fragment; or an isolated Clostridium bacterium where the bacterium is deposited under NRRL Accession Numbers NRRL B-50361, NRRL B-50362, or NRRL B-50363; (2) a method of producing a fermentation end-product; (3) a method of producing ethanol; (4) a fermentation end-product produced by the method; (5) a system for producing fermentation end-product comprising: (a) a fermentation vessel; (b) a carbonaceous biomass; (c) an isolated Clostridium bacterium, where the isolated Clostridium bacterium comprises a 16S rRNA nucleotide sequence encoded in part by a nucleotide sequence with greater than 99.8% identity to SEQ ID NO. 13; and (d) a medium; or a system for producing a fermentation end-product comprising: (a) a fermentation vessel; (b) a carbonaceous biomass; (c) an isolated microorganism, where the isolated microorganism comprises one or more nucleotide sequences comprising at least 400 nucleotides with at least 90% identity to SEQ ID NO. 17-42, where the nucleotide sequences encode for a protein or protein fragment; and (d) a medium; (6) a fuel plant comprising a fermentation vessel configured to house a medium and an isolated Clostridium bacterium, where the fermentation vessel comprises a cellulosic and/or lignocellulosic material, where the isolated Clostridium bacterium comprises a 16S rRNA nucleotide sequence encoded in part by a nucleotide sequence with greater than 99.8% identity to SEQ ID NO. 13; or a fuel plant comprising a fermentation vessel configured to house a medium and isolated microorganism where the fermentation vessel comprises a cellulosic and/or lignocellulosic material, where the isolated microorganism comprises one or more nucleotide sequences comprising at least 400 nucleotides with at least 90% identity to SEQ ID NO. 17-42, where the nucleotide sequences encode for a protein or protein fragment; (7) a composition comprising an isolated Gram-positive bacterium, where the bacterium is an anaerobic, obligate mesophile that produces beige-pigmented colonies, where the bacterium can use hexose or pentose sugars as a carbon source and can ferment the sugars into ethanol, organic acids, biofuels and other chemical products; (8) a method for growing an isolated Gram-positive bacterium, designated Clostridium sp. Q.D; (9) a method of converting an organic material into chemical energy; (10) an isolated microorganism comprising one or more nucleotide sequences comprising at least 400 nucleotides with at least 90% identity to SEQ ID NO. 17-42, where the nucleotide sequences encode for a protein or protein fragment; and (11) an isolated microorganism comprising one or more nucleotide sequences comprising at least 400 nucleotides with at least 90% identity to SEQ ID NO. 1, where the nucleotide sequences encode for a protein or protein fragment. Sequences not defined here may be found at ftp://ftp.wipo.int/pub/published_pct_sequences/publication.