Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/135323
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Mobilization of Pollutant-Degrading Bacteria by Eukaryotic Zoospores |
Autor: | Sungthong, R. CSIC ORCID; Van West, Pieter; Heyman, F.; Jensen, D.F.; Ortega Calvo, J. J. CSIC ORCID | Palabras clave: | Aromatic hydrocarbons Biodegradation Bioremediation Biotechnology Cells Computer aided analysis Cytology Pollution Polycyclic aromatic hydrocarbons Bacterial motility Computer-assisted analysis Degrading bacteria |
Fecha de publicación: | 19-jul-2016 | Editor: | American Chemical Society | Citación: | Environmental Science and Technology 50(14):7633-7640 (2016) | Resumen: | The controlled mobilization of pollutant-degrading bacteria has been identified as a promising strategy for improving bioremediation performance. We tested the hypothesis whether the mobilization of bacterial degraders may be achieved by the action of eukaryotic zoospores. We evaluated zoospores that are produced by the soil oomycete Pythium aphanidermatum as a biological vector, and, respectively, the polycyclic aromatic hydrocarbon (PAH)-degrading bacteria Mycobacterium gilvum VM552 and Pseudomonas putida G7, acting as representative nonflagellated and flagellated species. The mobilization assay was performed with a chemical-in-capillary method, in which zoospores mobilized bacterial cells only when they were exposed to a zoospore homing inducer (5% (v/v) ethanol), which caused the tactic response and settlement of zoospores. The mobilization was strongly linked to a lack of bacterial motility, because the nonflagellated cells from strain M. gilvum VM552 and slightly motile, stationary-phase cells from P. putida G7 were mobilized effectively, but the actively motile, exponentially grown cells of P. putida G7 were not mobilized. The computer-assisted analysis of cell motility in mixed suspensions showed that the swimming rate was enhanced by zoospores in stationary, but not in exponentially grown, cells of P. putida G7. It is hypothesized that the directional swimming of zoospores caused bacterial mobilization through the thrust force of their flagellar propulsion. Our results suggest that, by mobilizing pollutant-degrading bacteria, zoospores can act as ecological amplifiers for fungal and oomycete mycelial networks in soils, extending their potential in bioremediation scenarios | Descripción: | 8 páginas.-- 2 figuras.-- 2 tablas.-- 29 referencias.-- The Supporting Information is available free of charge on the ACS Publications website at DOI: 10.1021/acs.est.6b00994. | Versión del editor: | http://dx.doi.org/10.1021/acs.est.6b00994 | URI: | http://hdl.handle.net/10261/135323 | DOI: | 10.1021/acs.est.6b00994 | ISSN: | 0013-936X |
Aparece en las colecciones: | (IRNAS) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Sungthong_Mobilization_2016_Postprint.pdf | 445,42 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
3
checked on 22-abr-2024
WEB OF SCIENCETM
Citations
4
checked on 28-feb-2024
Page view(s)
216
checked on 22-abr-2024
Download(s)
271
checked on 22-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.