The Pbo cluster from Pseudomonas syringae pv. phaseolicola NPS3121 is thermoregulated and required for phaseolotoxin biosynthesis
| dc.contributor.author | Guardado-Valdivia, Lizeth | |
| dc.contributor.author | Chacón-López, Alejandra | |
| dc.contributor.author | Murillo Martínez, Jesús | |
| dc.contributor.author | Poveda Arias, Jorge | |
| dc.contributor.author | Hernández Flores, José Luis | |
| dc.contributor.author | Xoca-Orozco, Luis | |
| dc.contributor.author | Aguilera, Selene | |
| dc.contributor.department | Institute for Multidisciplinary Research in Applied Biology - IMAB | en |
| dc.date.accessioned | 2021-09-07T15:25:22Z | |
| dc.date.available | 2021-09-07T15:25:22Z | |
| dc.date.issued | 2021 | |
| dc.description.abstract | The bean (Phaseolus vulgaris) pathogen Pseudomonas syringae pv. phaseolicola NPS3121 synthe-sizes phaseolotoxin in a thermoregulated way, with optimum production at 18 °C. Gene PSPPH_4550 was previously shown to be thermoregulated and required for phaseolotoxin bio-synthesis. Here, we established that PSPPH_4550 is part of a cluster of 16 genes, the Pbo cluster, included in a genomic island with a limited distribution in P. syringae and unrelated to the posses-sion of the phaseolotoxin biosynthesis cluster. We identified typical non-ribosomal peptide syn-thetase, and polyketide synthetase domains in several of the pbo deduced products. RT-PCR and the analysis of polar mutants showed that the Pbo cluster is organized in four transcriptional units, including one monocistronic and three polycistronic. Operons pboA and pboO are both es-sential for phaseolotoxin biosynthesis, while pboK and pboJ only influence the amount of toxin produced. The three polycistronic units were transcribed at high levels at 18 °C but not at 28 °C, whereas gene pboJ was constitutively expressed. Together, our data suggest that the Pbo cluster synthesizes secondary metabolite(s), which could participate in the regulation of phaseolotoxin biosynthesis. | es_ES |
| dc.description.sponsorship | The authors thank the Consejo Nacional de Ciencia y Tecnología (CONACyT) for the scholarship granted to Lizeth Guardado-Valdivia. The work reported was funded by research grant CB-2015-01-255155 from the CONACyT, to S. Aguilera, and by the Spanish Plan Nacional I+D+I grant AGL2017-82492-C2-2-R, from the Ministerio de Economía y Competitividad (MINECO), co-financed by the Fondo Europeo de Desarrollo Regional (FEDER), to J. Murillo. | en |
| dc.format.extent | 15 p. | |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.doi | 10.3390/toxins13090628 | |
| dc.identifier.issn | 2072-6651 (Electronic) | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/40461 | |
| dc.language.iso | eng | en |
| dc.publisher | MDPI | en |
| dc.relation.ispartof | Toxins 2021, 13, 628 | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2017-82492-C2-2-R/ES/ | |
| dc.relation.publisherversion | https://doi.org/10.3390/toxins13090628 | |
| dc.rights | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Pseudomonas syringae | en |
| dc.subject | Pseudomonas amygdali | en |
| dc.subject | Pseudomonas savastanoi | en |
| dc.subject | Phaseolotoxin | en |
| dc.subject | Pbo cluster | en |
| dc.subject | Non-ribosomal peptide synthetases | en |
| dc.subject | Genomic island | en |
| dc.subject | Antimetabolite toxin | en |
| dc.subject | Polyketide synthetase | en |
| dc.title | The Pbo cluster from Pseudomonas syringae pv. phaseolicola NPS3121 is thermoregulated and required for phaseolotoxin biosynthesis | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 3f350c70-2e68-4b9b-95d6-26e9cc1540a0 | |
| relation.isAuthorOfPublication | 85d07390-8e9d-444e-a969-87fff3f1497e | |
| relation.isAuthorOfPublication.latestForDiscovery | 3f350c70-2e68-4b9b-95d6-26e9cc1540a0 |