Antagonistic activity of endophytic actinobacteria from native potatoes (Solanum tuberosum subsp. tuberosum L.) against Pectobacterium carotovorum subsp. carotovorum and Pectobacterium atrosepticum

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dc.contributor.authorPadilla-Gálvez, Natalia
dc.contributor.authorLuengo-Uribe, Paola
dc.contributor.authorMancilla, Sandra
dc.contributor.authorMaurin, Amandine
dc.contributor.authorTorres, Claudia
dc.contributor.authorRuiz, Pamela
dc.contributor.authorFrance, Andrés
dc.contributor.authorAcuña, Ivette
dc.contributor.authorUrrutia, Homero
dc.date.accessioned2023-06-15T21:53:49Z
dc.date.available2023-06-15T21:53:49Z
dc.date.issued2021-12
dc.descriptionIndexación: Scopus.es
dc.description.abstractBackground: The native potatoes (Solanum tuberosum subsp. tuberosum L.) grown in Chile (Chiloé) represent a new, unexplored source of endophytes to fnd potential biological control agents for the prevention of bacterial diseases, like blackleg and soft rot, in potato crops. Result: The objective of this study was the selection of endophytic actinobacteria from native potatoes for antago‑ nistic activity against Pectobacterium carotovorum subsp. carotovorum and Pectobacterium atrosepticum, and their potential to suppress tissue maceration symptoms in potato tubers. This potential was determined through the quorum quenching activity using a Chromobacterium violaceaum ATCC 12472 Wild type (WT) bioassay and its colo‑ nization behavior of the potato plant root system (S. tuberosum) by means of the Double labeling of oligonucleotide probes for fuorescence in situ hybridization (DOPE-FISH) targeting technique. The results showed that although Strep tomyces sp. TP199 and Streptomyces sp. A2R31 were able to inhibit the growth of the pathogens, only the Streptomyces sp. TP199 isolate inhibited Pectobacterium sp. growth and diminished tissue maceration in tubers (p≤0.05). Streptomy ces sp. TP199 had metal-dependent acyl homoserine lactones (AHL) quorum quenching activity in vitro and was able to colonize the root endosphere 10 days after inoculation. Conclusions: We concluded that native potatoes from southern Chile possess endophyte actinobacteria that are potential agents for the disease management of soft rot and blackleg.es
dc.description.urihttps://bmcmicrobiol.biomedcentral.com/articles/10.1186/s12866-021-02393-x
dc.identifier.citationBMC Microbiology. Volume 21, Issue 1. December 2021. Article number 335es
dc.identifier.doi10.1186/s12866-021-02393-x
dc.identifier.issn1471-2180
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/50782
dc.language.isoenes
dc.publisherBioMed Central Ltdes
dc.rights.licenseAtribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectEndophytic Actinobacteriaes
dc.subjectStreptomyces sp.es
dc.subjectQuorum Quenchinges
dc.subjectConfocal Laser Microscopyes
dc.subjectBlackleges
dc.subjectSoft Rotes
dc.subjectPotatoes
dc.titleAntagonistic activity of endophytic actinobacteria from native potatoes (Solanum tuberosum subsp. tuberosum L.) against Pectobacterium carotovorum subsp. carotovorum and Pectobacterium atrosepticumes
dc.typeArtículoes
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