Repositorio UFRO · Omeka S

Characterization of a novel antarctic plant growth-promoting bacterial strain and its interaction with antarctic hair grass (Deschampsia antarctica Desv)

Primer Autor	Gutierrez-Moraga, Ana
Co-autores	Berrios, Graciela Cabrera, Gustavo Gidekel, Manuel
Título	Characterization of a novel antarctic plant growth-promoting bacterial strain and its interaction with antarctic hair grass (Deschampsia antarctica Desv)
Editorial	SPRINGER
Revista	POLAR BIOLOGY
Lenguaje	en
Resumen	Deschampsia antarctica is the only hair grass that has been able to successfully colonize the Antarctic continent. However, there is little research on the role of microorganisms associated with the rhizosphere that may participate in its growth and development. The objective of this research was to characterize a psychrotolerant bacterial strain isolated from the rhizosphere of D. antarctica. Biochemical and molecular studies were performed to characterize this bacterium. It was determined that this strain secretes a neutral polysaccharide that presents different compositions at different temperatures (4 and 20 A degrees C). Based on biochemical and phylogenetic analyses, the Antarctic rhizobacterium could be a new species of Pseudomonas. To determine their ability to solubilize different sources of inorganic phosphate, qualitative and quantitative analyses were conducted to determine P released at 4 A degrees C. The Antarctic strain of Pseudomonas sp. was able to solubilize all sources of phosphates, and 34.2 mg P/L was released from rock phosphate. Growth physiological parameters were evaluated for seedlings of D. antarctica inoculated with the rhizobacteria. It was found that the bacterial inoculation promoted plant root development. SEM analysis of the roots showed that the bacterium is mainly located in the root hairs of D. antarctica.
Tipo de Recurso	Artículo original
Description	The authors thank Ramon Rossello Mora for his assistance with phylogenetic analyses. The authors thank Charles Guy for his help in the translation and proofreading of the manuscript. Monica Ramirez and Yamile Bernardo are thanked for their assistance with HPLC Analyses. The authors thank INACH 0301 Grants UXMAL S.A.: Doctorate Fellowship CONICYT Graciela Berrios Los autores agradecen a Ramón Rossello Mora su ayuda con los análisis filogenéticos. Los autores agradecen a Charles Guy su ayuda en la traducción y revisión del manuscrito. Se agradece a Mónica Ramírez y Yamile Bernardo su ayuda con los análisis de HPLC. Los autores agradecen a INACH 0301 Grants UXMAL S.A.: Doctorate Fellowship CONICYT Graciela Berrios
doi	10.1007/s00300-012-1264-6
Formato Recurso	pdf
Palabras Claves	Deschampsia antarctica Desv Pseudomonas Psychrotolerant Phosphate solubilizing bacteria Biochemical characterization PHOSPHATE SOLUBILIZING BACTERIA ACID PRODUCTION SP-NOV. INCUBATION-TEMPERATURE TRICALCIUM PHOSPHATE SOIL-MICROORGANISMS INORGANIC-PHOSPHATE PSEUDOMONAS SURFACE EXOPOLYSACCHARIDES Deschampsia antarctica Desv Pseudomonas Psicotolerante Bacteria solubilizadora de fosfato Caracterización bioquímica BACTERIAS SOLUBILIZADORAS DE FOSFATO PRODUCCIÓN DE ÁCIDO SP-NOV. TEMPERATURA DE INCUBACIÓN FOSFATO TRICÁLCICO MICROORGANISMOS DEL SUELO FOSFATO INORGÁNICO PSEUDOMONAS SUPERFICIE EXOPOLIASACÁRIDOS
Ubicación del archivo	http://dx.doi.org/10.1007/s00300-012-1264-6
Materias	Deschampsia antarctica Desv Pseudomonas Psychrotolerant Phosphate solubilizing bacteria Biochemical characterization PHOSPHATE SOLUBILIZING BACTERIA ACID PRODUCTION SP-NOV. INCUBATION-TEMPERATURE TRICALCIUM PHOSPHATE SOIL-MICROORGANISMS INORGANIC-PHOSPHATE PSEUDOMONAS SURFACE EXOPOLYSACCHARIDES Deschampsia antarctica Desv Pseudomonas Psicotolerante Bacteria solubilizadora de fosfato Caracterización bioquímica BACTERIAS SOLUBILIZADORAS DE FOSFATO PRODUCCIÓN DE ÁCIDO SP-NOV. TEMPERATURA DE INCUBACIÓN FOSFATO TRICÁLCICO MICROORGANISMOS DEL SUELO FOSFATO INORGÁNICO PSEUDOMONAS SUPERFICIE EXOPOLIASACÁRIDOS
Disciplinas de la OCDE	Biotecnología agrícola Microbiología Botánica
Título de la cita (Recomendado-único)	Characterization of a novel antarctic plant growth-promoting bacterial strain and its interaction with antarctic hair grass (Deschampsia antarctica Desv)
Revista/Libro	POLAR BIOLOGY
Tipo de ruta	hibrida verde
Access Rights	restringido
Derechos de acceso	restringido
Idioma	en
Identificador del recurso (Mandatado-único)	Artículo original
Versión del recurso (Recomendado-único)	versión publicada
Entidad financiadora	INACH 0301#UXMAL S.A.
Referencia del Financiador (Mandatado si es aplicable-repetible)	INACH 0301 UXMAL S.A.
Editorial	SPRINGER
ISSN	0722-4060
Página de inicio (Recomendado-único)	349
Página final (Recomendado-único)	362
Categoría WOS	Conservación de la biodiversidad Ecología Biodiversity Conservation Ecology
Formato	pdf
Id de Web of Science	WOS:000314852300005