| coexistence of multiple proteobacterial endosymbionts in the gills of the wood-boring bivalve lyrodus pedicellatus (bivalvia: teredinidae). | wood-boring bivalves of the family teredinidae (commonly called shipworms) are known to harbor dense populations of gram-negative bacteria within specialized cells (bacteriocytes) in their gills. these symbionts are thought to provide enzymes, e.g., cellulase and dinitrogenase, which assist the host in utilizing wood as a primary food source. a cellulolytic, dinitrogen-fixing bacterium, teredinibacter turnerae, has been isolated from the gill tissues of numerous teredinid bivalves and has been p ... | 2002 | 12450854 |
| the complete genome of teredinibacter turnerae t7901: an intracellular endosymbiont of marine wood-boring bivalves (shipworms). | here we report the complete genome sequence of teredinibacter turnerae t7901. t. turnerae is a marine gamma proteobacterium that occurs as an intracellular endosymbiont in the gills of wood-boring marine bivalves of the family teredinidae (shipworms). this species is the sole cultivated member of an endosymbiotic consortium thought to provide the host with enzymes, including cellulases and nitrogenase, critical for digestion of wood and supplementation of the host's nitrogen-deficient diet. t. t ... | 2009 | 19568419 |
| a novel salt-tolerant endo-beta-1,4-glucanase cel5a in vibrio sp. g21 isolated from mangrove soil. | although cellulases have been isolated from various microorganisms, no functional cellulase gene has been reported in the vibrio genus until now. in this report, a novel endo-beta-1,4-glucanase gene, cel5a, 1,362 bp in length, was cloned from a newly isolated bacterium, vibrio sp. g21. the deduced protein of cel5a contains a catalytic domain of glycosyl hydrolase family 5 (gh5), followed by a cellulose binding domain (cbm2). the gh5 domain shows the highest sequence similarity (69%) to the bifun ... | 2010 | 20393708 |
| physiological traits of the symbiotic bacterium teredinibacter turnerae isolated from the mangrove shipworm neoteredo reynei. | nutrition in the teredinidae family of wood-boring mollusks is sustained by cellulolytic/nitrogen fixing symbiotic bacteria of the teredinibacter clade. the mangrove teredinidae neoteredo reynei is popularly used in the treatment of infectious diseases in the north of brazil. in the present work, the symbionts of n. reynei, which are strictly confined to the host's gills, were conclusively identified as teredinibacter turnerae. symbiont variants obtained in vitro were able to grow using casein a ... | 2009 | 21637522 |
| teredinibacter turnerae gen. nov., sp. nov., a dinitrogen-fixing, cellulolytic, endosymbiotic gamma-proteobacterium isolated from the gills of wood-boring molluscs (bivalvia: teredinidae). | a cellulolytic, dinitrogen-fixing bacterium isolated from the gill tissue of a wood-boring mollusc (shipworm) lyrodus pedicellatus of the bivalve family teredinidae and 58 additional strains with similar properties, isolated from gills of 24 bivalve species representing 9 of 14 genera of teredinidae, are described. the cells are gram-negative, rigid, rods (0.4-0.6 x 3-6 microm) that bear a single polar flagellum. all isolates are capable of chemoheterotrophic growth in a simple mineral medium su ... | 2002 | 12508896 |
| simiduia agarivorans gen. nov., sp. nov., a marine, agarolytic bacterium isolated from shallow coastal water from keelung, taiwan. | a gram-negative, heterotrophic, agarolytic, marine bacterium, designated strain sa1t, was isolated from a seawater sample collected in the shallow coastal region of keelung, taiwan. cells were straight to slightly curved rods. nearly all of the cells were non-motile and non-flagellated during the exponential phase of growth in broth cultures; a few cells (<1 %) were motile and were considered to have monotrichous flagella. the isolate required nacl for growth and grew optimally at 30-35 degrees ... | 2008 | 18398190 |
| saccharophagus degradans gen. nov., sp. nov., a versatile marine degrader of complex polysaccharides. | gammaproteobacteria belonging and related to the genus microbulbifer are an emerging group of complex carbohydrate-degrading marine bacteria. previously, all of the representatives were placed within microbulbifer or were unclassified. recently, a new genus, teredinibacter, represented by a single species, teredinibacter turnerae, was formed to include an endosymbiotic branch of these organisms. in this study, based on 16s rrna gene sequence similarity and phenotypic analyses, a new genus, sacch ... | 2005 | 16014479 |
| genome sequence of strain imcc1989, a novel member of the marine gammaproteobacteria. | strain imcc1989 is a novel member of the oligotrophic marine gammaproteobateria (omg) group, and is closely related with a symbiont group of genera teredinibacter and "candidatus endobugula". here we present the genome sequence of strain imcc1989 that was isolated from the yellow sea by using dilution-to-extinction culturing. | 2011 | 21602334 |
| pseudoteredinibacter isoporae gen. nov., sp. nov., a marine bacterium, isolated from the reef-building coral isopora palifera. | a gram-negative, heterotrophic, marine bacterium, designated strain sw-11t, was isolated from the reef-building coral isopora palifera in kenting, taiwan. cells were rods and motile by a single polar flagellum. the optimum growth temperature was 30-35°c. cells grew best in ph 7.0-8.0 and 2-3%(w/v) nacl. the 16s rrna gene sequence analysis demonstrated that the strain sw-11t was unique, showing <93.5 % similarity with respect to the genera teredinibacter (maximum of 93.2 % similarity) and sacchar ... | 2010 | 20833889 |
| genetic modification of teredinibacter turnerae, an endosymbiont with biotechnological potential. | teredinibacter turnerae belongs to a group of biotechnologically relevant bacteria. gene transfer into t. turnerae was achieved by using pprobe'-gfp[asv] derived plasmids through conjugative mating with escherichia coli dh5alpha prk2073. transferred plasmids were stably maintained and t. turnerae could also act as a donor to transfer these mobilizable plasmids. constructs for both constitutive and iptg-inducible gene expression were obtained, representing new tools for gene overexpression in t. ... | 2010 | 20559015 |
| celab, a multifunctional cellulase encoded by teredinibacter turnerae t7902t, a culturable symbiont isolated from the wood-boring marine bivalve lyrodus pedicellatus. | we characterized a multifunctional cellulase (celab) encoded by the endosymbiont teredinibacter turnerae t7902(t). celab contains two catalytic and two carbohydrate-binding domains, each separated by polyserine linker regions. celab binds cellulose and chitin, degrades multiple complex polysaccharides, and displays two catalytic activities, cellobiohydrolase (ec 3.2.1.91) and beta-1,4(3) endoglucanase (ec 3.2.1.4). | 2007 | 17933945 |
| marinimicrobium koreense gen. nov., sp. nov. and marinimicrobium agarilyticum sp. nov., novel moderately halotolerant bacteria isolated from tidal flat sediment in korea. | two moderately halotolerant gram-negative bacteria were isolated from tidal flat sediment of the south sea in korea (the korea strait). the strains, designated m9t and m18t, were strictly aerobic, rod-shaped and non-spore-forming and motile with a flagellum and their major fatty acids were c(16:0) and c(19:0) cyclo omega8c. strains m9t and m18t could grow in the presence of up to 13-15% (w/v) nacl, but their optimum salt concentrations were relatively low (0-3%, w/v). the major predominant isopr ... | 2006 | 16514044 |
| extensive variation in intracellular symbiont community composition among members of a single population of the wood-boring bivalve lyrodus pedicellatus (bivalvia: teredinidae). | shipworms (wood-boring bivalves of the family teredinidae) harbor in their gills intracellular bacterial symbionts thought to produce enzymes that enable the host to consume cellulose as its primary carbon source. recently, it was demonstrated that multiple genetically distinct symbiont populations coexist within one shipworm species, lyrodus pedicellatus. here we explore the extent to which symbiont communities vary among individuals of this species by quantitatively examining the diversity, ab ... | 2006 | 16391072 |
| maricurvus nonylphenolicus gen. nov., sp. nov., a nonylphenol-degrading bacterium isolated from seawater. | a novel aerobic, gram-negative bacterial strain, designated ku41e(t) , which degrades p-n-nonylphenol, was isolated from seawater obtained from the coastal region of ishigaki island, japan. cells are motile, curved rods with a single polar flagellum. strain ku41e(t) grew at 20-35 °c, ph 7.0-8.0, in the presence of 1.0-4.0% nacl. the predominant respiratory lipoquinone was ubiquinone-8, and the major cellular fatty acids were summed feature 3 (c(15:0) iso 2oh and/or c(16:1) ω7c, 28.4%), c(18:1 ... | 2011 | 22133150 |
| umboniibacter marinipuniceus gen. nov., sp. nov., a marine gammaproteobacterium isolated from the mollusc umbonium costatum from the sea of japan. | two bacterial strains, kmm 3891(t) and kmm 3892, were isolated from internal tissues of the marine mollusc umbonium costatum collected from the sea of japan. the novel isolates were gram-negative, aerobic, faint pink-reddish-pigmented, rod-shaped, non-motile, stenohaline and psychrotolerant bacteria that were unable to degrade most tested complex polysaccharides. polar lipids consisted of phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol. fatty acid analysis revealed c(17 ... | 2010 | 19654350 |