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Bacillus glucanolyticus, a New Species That Degrades a Variety of p-Glucans

Bacillus glucanolyticus, a New Species That Degrades a Variety of p-Glucans,BRIAN ALEXANDER,FERGUS G. PRIEST

Bacillus glucanolyticus, a New Species That Degrades a Variety of p-Glucans   (Citations: 17)
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A new species, Bacillus glucanolyticus, is proposed for a group of facultatively anaerobic endospore-forming bacteria isolated from soil that hydrolyze various P-glucans, including carboxymethyl cellulose and pustulan. Of the 14 strains examined, 11 were phenotypically homogeneous, and five of these strains showed high levels of deoxyribonucleic acid (DNA) relatedness (>68 %) to a reference strain. Two pustulan-hydrolyzing strains were atypical, with low levels of DNA relatedness (52 to 57%), and a third strain was not classified as B. glucanolyticus. B. glucanolyticus strains produce motile microcolonies similar to those of Bacillus alvei but can be distinguished from this taxon by several phenotypic characteristics and a higher DNA base composition (48 mol%). B. glucanolyticus is similar to Bacillus circulans and related species; indeed, four strains were received as B. circulans, but distinctive phenotypic characteristics and low levels of DNA homology with B. circuhns, Bacillus amylolyticus, Bacillus lautus, Bacillus pabuli, and Bacillus validus strains support its introduction as a new species. The type strain of B. glucanolyticus is strain S93 (= DSM 5162T). Members of the genus Bacillus secrete a variety of extra- cellular enzymes, including several types of P-glucanases (12). These enzymes are generally active on 1,4-P-linked (cellulose) and 1,3-P-linked (laminarin) polymers or mixed 1,4/1,3-P-linked polymers (1, 3, 15), but a class active on 1,6-P-linked polymers, of which pustulan is an example, has been detected in Bacillus circulans (17). P-1,6-Glucanases seem to be relatively rare, and, in a comprehensive numer- ical taxonomic study of the genus Bacillus, pustulan hydrol- ysis was associated with only 2 of the 49 clusters described (14). Both of these taxa contained bacteria previously la- beled B. circulans. One (taxon 7) has since been shown to be identical to Bacillus pabuli, a species that was recently resurrected (7) to accommodate certain strains that had previously borne that name. The other (taxon 4) contained strains that were distinct from all other species, including those related to B. circulans. We propose that taxon 4 organisms should be given species status as Bacillus glu- canolyticus.
Published in 1989.
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    • ...(data from 12 strains from this study); 2, P. lautus (5 strains; data from Alexander & Priest, 1989); 3, P. glucanolyticus (11 strains; Alexander & Priest, 1989); 4, P. macerans (15 strains; Logan & Berkeley, 1984); 5, P. polymyxa (15 strains; Logan & Berkeley, 1984)...
    • ...(data from 12 strains from this study); 2, P. lautus (5 strains; data from Alexander & Priest, 1989); 3, P. glucanolyticus (11 strains; Alexander & Priest, 1989); 4, P. macerans (15 strains; Logan & Berkeley, 1984); 5, P. polymyxa (15 strains; Logan & Berkeley, 1984)...

    Patsy Scheldemanet al. Paenibacillus lactis sp. nov., isolated from raw and heat-treated milk

    • ...(Alexander & Priest, 1989; N. A. Logan, unpublished observations), and also reminiscent of colonies of Paenibacillus alvei (illustrated in Logan & Turnbull, 2003), but they did not have the odour associated with cultures of P. alvei...

    Niall A. Loganet al. Paenibacillus cineris sp. nov. and Paenibacillus cookii sp. nov., from...

    • ...Previous reports said that P. illinoisensis, P. pabuli, and P. amylolyticus were gram positive, whereas P. macquariensis and Paenibacillus glucanolyticus were gram negative (1, 9, 19, 31)...

    Yasuko Itoet al. Cloning, Expression, and Cell Surface Localization of Paenibacillus sp...

    • ... II.D.3.iv Nakamura (1984) Paenibacillus apiarius II.D.4.i Nakamura (1996) Paenibacillus azotofixans I.A.1 Shida et al. (1997a) Paenibacillus borealis I.B.3.i Elo et al. (2001) Paenibacillus chibensis IV.B.1.iii Shida et al. (1997b) Paenibacillus chondroitinus IV.D.3.i Nakamura (1987) Paenibacillus curdlanolyticus IV.B.2.ii Kanzawa et al. (1995) Paenibacillus dendritiformis II.C.4 Tcherpakov et al. (1999) Paenibacillus glucanolyticus II.D.3.ii ...

    O. N. Revaet al. Simplified technique for identification of the aerobic spore-forming b...

    • ...One feature of several members of the genus Paenibacillus is that they produce extracellular polysaccharide-degrading enzymes (Shida et al., 1997a; Nakamura, 1987; Alexander & Priest, 1989; Claus & Berkeley, 1986; Priest et al., 1988)...

    Marianna Tcherpakovet al. Paenibacillus dendritiformis sp. nov., proposal for a new pattern-form...

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