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dc.contributor.author
Tropeano, Mauro
dc.contributor.author
Vazquez, Susana Claudia
dc.contributor.author
Coria, Silvia
dc.contributor.author
Turjanski, Adrian
dc.contributor.author
Cicero, Daniel
dc.contributor.author
Bercovich, Andrés
dc.contributor.author
Cormack, Mac
dc.date.available
2015-11-12T14:31:03Z
dc.date.issued
2013-10
dc.identifier.citation
Tropeano, Mauro; Vazquez, Susana Claudia; Coria, Silvia; Turjanski, Adrian; Cicero, Daniel; et al.; Extracellular hydrolytic enzyme production by proteolytic bacteria from the Antarctic; De Gruyter Open; Polish Polar Research; 34; 3; 10-2013; 253-267
dc.identifier.issn
0138-0338
dc.identifier.uri
http://hdl.handle.net/11336/2746
dc.description.abstract
Cold−adapted marine bacteria producing extracellular hydrolytic enzymes are important for their industrial application and play a key role in degradation of particulate organic matter in their natural environment. In this work, members of a previously−obtained protease−producing bacterial collection isolated from different marine sources from Potter Cove (King George Island, South Shetlands) were taxonomically identified and screened for their ability to produce other economically relevant enzymes. Eighty−eight proteolytic bacterial isolates were grouped into 25 phylotypes based on their Amplified Ribosomal DNA Restriction Analysis profiles. The sequencing of the 16S rRNA genes from representative isolates of the phylotypes showed that the predominant culturable protease−producing bacteria belonged to the class Gammaproteobacteria and were affiliated to the genera Pseudomonas, Shewanella, Colwellia, and Pseudoalteromonas, the latter being the predominant group (64% of isolates). In addition, members of the classes Actinobacteria, Bacilli and Flavobacteria were found. Among the 88 isolates screened we detected producers of amylases (21), pectinases (67), cellulases (53), CM−cellulases (68), xylanases (55) and agarases (57). More than 85% of the isolates showed at least one of the extracellular enzymatic activities tested, with some of them producing up to six extracellular enzymes. Our results confirmed that using selective conditions to isolate producers of one extracellular enzyme activity increases the probability of recovering bacteria that will also produce additional extracellular enzymes. This finding establishes a starting point for future programs oriented to the prospecting for biomolecules in Antarctica.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
De Gruyter Open
dc.rights
info:eu-repo/semantics/openAccess
dc.rights
Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5 AR)
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Bioinformatica
dc.subject
Anataritda
dc.subject
Genomica
dc.subject
Enzimas
dc.subject.classification
Biología Celular, Microbiología
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Extracellular hydrolytic enzyme production by proteolytic bacteria from the Antarctic
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-03-30 10:35:44.97925-03
dc.journal.volume
34
dc.journal.number
3
dc.journal.pagination
253-267
dc.journal.pais
Deu
dc.journal.ciudad
Berlin
dc.description.fil
Fil: Tropeano, Mauro. Biosidus; Argentina
dc.description.fil
Fil: Vazquez, Susana Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina
dc.description.fil
Fil: Coria, Silvia. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.description.fil
Fil: Turjanski, Adrian. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Química Biológica; Argentina
dc.description.fil
Fil: Cicero, Daniel. Fundación Instituto Leloir; Argentina. University of Rome “Tor Vergata”. Department of Chemical Science and Technology; Italia
dc.description.fil
Fil: Bercovich, Andrés. Biosidus; Argentina
dc.description.fil
Fil: Cormack, Mac. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
dc.journal.title
Polish Polar Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.2478/popore-2013-0014
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.degruyter.com/view/j/popore.2013.34.issue-3/popore-2013-0014/popore-2013-0014.xml
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/issn/0138-0338


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