RT Journal Article T1 The Compound 2-Hexyl, 5-Propyl Resorcinol has a key role in biofilm formation by the biocontrol rhizobacterium Pseudomonas chlororaphis PCL1606 A1 Calderón, Claudia E. A1 Tienda Serrano, Sandra A1 Heredia Ponce, Zaira María A1 Arrebola-Díez, Eva María A1 Cárcamo-Oyarce, Gerardo A1 Eberl, Leo A1 Cazorla-López, Francisco Manuel K1 Biopelículas K1 Biopolímeros K1 Bacterias fitopatógenas K1 Agentes de control biológico de plagas K1 Rizobacterias AB The production of the compound 2-hexyl-5-propyl resorcinol (HPR) by the biocontrolrhizobacterium Pseudomonas chlororaphis PCL1606 (PcPCL1606) is crucial for fungalantagonism and biocontrol activity that protects plants against the phytopathogenicfungus Rosellinia necatrix. The production of HPR is also involved in avocado rootcolonization during the biocontrol process. This pleiotrophic response prompted usto study the potential role of HPR production in biofilm formation. The swimmingmotility of PcPLL1606 is enhanced by the disruption of HPR production. Mutantsimpaired in HPR production, revealed that adhesion, colony morphology, and typicalair–liquid interphase pellicles were all dependent on HPR production. The role of HPRproduction in biofilm architecture was also analyzed in flow chamber experiments.These experiments revealed that the HPR mutant cells had less tight unions thanthose producing HPR, suggesting an involvement of HPR in the production of thebiofilm matrix. PB Frontiers YR 2019 FD 2019-02-28 LK https://hdl.handle.net/10630/31130 UL https://hdl.handle.net/10630/31130 LA eng NO Calderón CE, Tienda S, Heredia-Ponce Z, Arrebola E, Cárcamo-Oyarce G, Eberl L and Cazorla FM (2019) The Compound 2-Hexyl, 5-Propyl Resorcinol Has a Key Role in Biofilm Formation by the Biocontrol Rhizobacterium Pseudomonas chlororaphis PCL1606. Front. Microbiol. 10:396. NO This research was supported by the Spanish Plan Nacional I C D C I. Grants AGL2014-52518-C2-1-R and AGL2017-83368-C2-1-R, and both were partially supported by the European Union (FEDER). CC and ST were supported by a grant from FPI,Ministerio de Ciencia e Innovación, Spain. ZH-P was supported by a grant from FPU, Ministerio de Educación, Cultura y Deporte. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026