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QUORUM SENSING ACTIVITY AND CONTROL OF YEAST-MYCELIUM DIMORPHISM IN OPHIOSTOMA FLOCCOSUM

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dc.creatorCLAUDIA ANDREA OVIEDO SILVA
dc.creatorJOSÉ ARTURO NAVARRETE ARAYA
dc.date2014
dc.date.accessioned2025-01-10T14:48:46Z
dc.date.available2025-01-10T14:48:46Z
dc.date.issued2014
dc.description.abstractQUORUM SENSING (QS) ACTIVITY IN OPHIOSTOMA FUNGI HAS NOT BEEN DESCRIBED. WE HAVE EXAMINED THE GROWTH CONDITIONS ON THE CONTROL OF DIMORPHISM IN OPHIOSTOMA FLOCCOSUM, AN ATTRACTIVE BIOCONTROL AGENT AGAINST BLUE-STAIN FUNGI, AND ITS RELATIONSHIP WITH QS ACTIVITY. IN A DEFINED CULTURE MEDIUM WITH L-PROLINE AS THE N SOURCE, A HIGH INOCULUM SIZE (10(7) C.F.U. ML(-1)) WAS THE PRINCIPAL FACTOR THAT PROMOTED YEAST-LIKE GROWTH. INOCULUM SIZE EFFECT CAN BE EXPLAINED BY THE SECRETION OF A QS MOLECULE(S) (QSMS) RESPONSIBLE FOR INDUCING YEAST MORPHOLOGY. QSM CANDIDATES WERE EXTRACTED FROM SPENT MEDIUM AND THEIR STRUCTURE WAS DETERMINED BY GC-MS. THREE CYCLIC SESQUITERPENES WERE FOUND. THE MOST ABUNDANT MOLECULE, AND THEREFORE THE PRINCIPAL CANDIDATE TO BE THE QSM RESPONSIBLE FOR YEAST GROWTH OF O. FLOCCOSUM, WAS 1,1,4A-TRIMETHYL-5,6-DIMETHYLENE-DECALIN (C15H24). OTHER TWO COMPOUNDS WERE ALSO DETECTED.
dc.formatapplication/pdf
dc.identifier.doi10.1007/s10529-014-1514-5
dc.identifier.issn1573-6776
dc.identifier.issn0141-5492
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/9080
dc.languagespa
dc.publisherBIOTECHNOLOGY LETTERS
dc.relation.uri10.1007/s10529-014-1514-5
dc.rightsPUBLICADA
dc.titleQUORUM SENSING ACTIVITY AND CONTROL OF YEAST-MYCELIUM DIMORPHISM IN OPHIOSTOMA FLOCCOSUM
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE QUIMICA
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA EN MADERAS
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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