2026-06-07T06:29:51Zhttps://riuma.uma.es/rest/oai/requestoai:riuma.uma.es:10630/181742026-02-03T12:29:20Zcom_10630_2254col_10630_37959
RIUMA. Repositorio Institucional de la Universidad de Málaga
author
Heredia Ponce, Zaira María
author
Purtschert, G.
author
Gutiérrez Barranquero, José Antonio
author
Eberl, Leo
author
De-Vicente-Moreno, Antonio
author
Cazorla-López, Francisco Manuel
2019-07-29T10:39:30Z
2019-07-29T10:39:30Z
2019-07
Heredia-Ponce et a., 2019. A Psl-like polysaccharide has a key role in the biofilm architecture of two plant-associated Pseudomonas. ISMPMI 2019 Proceeding book, 854-22
https://hdl.handle.net/10630/18174
The Psl polysaccharide has only been studied in Pseudomonas aeruginosa, and its role in bacteria that interact with plants is still unknown. On the one hand, P. syringae is a model of study of plant-pathogen interactions. On the other hand, P. chlororaphis is a biocontrol agent of plant-fungal diseases, as the white root rot caused by Rosellinia necatrix. In silico analysis have let us identify in both species a genomic region which is ortholog to the Psl-encoding region of P. aeruginosa PAO1. We constructed mutants of this region in both strains and analysed its phenotype in biofilm formation, both in static microwell plates and dynamic flow-cell chamber experiments. The results revealed a different and an important role of this polysaccharide in the biofilm architecture of both strains. Furthermore, in P. syringae this Psl-like polysaccharide has a very important role in swarming motility. All these striking phenotypes led us further study the implication of this polysaccharide in the lifestyles of both models of plant-bacteria interaction.
eng
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
A Psl-like polysaccharide has a key role in the biofilm architecture of two plant-associated Pseudomonas
conference output
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URL
https://riuma.uma.es/bitstreams/2913ac70-f659-496e-88e0-139d936cfb80/download
File
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c6c3cb57dc2d8ce42a10e946bfb87b85
31473
application/pdf
Abstract MPMI Glasgow - Zaira Heredia.pdf