Germicidal effect of UV light on epiphytic fungi isolated from blueberry

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dc.contributor.authorLatorre, Bernardo A.
dc.contributor.authorRojas, Susana
dc.contributor.authorDiaz, Gonzalo A.
dc.contributor.authorChuaqui, Hernan
dc.date.accessioned2024-01-10T13:48:49Z
dc.date.available2024-01-10T13:48:49Z
dc.date.issued2012
dc.description.abstractB.A. Latorre, S. Rojas, G.A. Diaz, and H. Chuaqui. 2012. Germicidal effect of UV light on epiphytic fungi isolated from blueberry. Cien. Inv. Agr. 39(3): 473-480. The present study examined the inactivation effect of ultraviolet (UV) light on the conidia of Botrytis cinerea Cladosporium cladosporioides, C. herbarum and Pestalotiopsis clavispora, common pathogens of blueberry (Vaccinium corymbosum), often found as epiphytes. The fungi were grown at 20 degrees C in acidified potato dextrose agar (APDA) in the dark; conidial suspensions (10(6) conidia mL(-1)) were placed the bottom of 5 cm glass Petri plates with a maximum height of 0.5 mm. Uncovered plates were immediately exposed to either UVA (lambda = 361 nm), UVB (lambda = 302 nm) or UVC (lambda = 254 nm) at doses between 40 and 110 mJ.cm(2). The results were expressed as survival ratios Nt/N0 (the number of colonies obtained after conidia were exposed to UV irradiance/the total number of fungal colonies in the non-irradiated controls). The fungal-dependent rate constants (k), a measure of the mortality rate, were estimated from an exponential model. The species in order of greatest to least resistance to UV light were Cladosporium cladosporioides, C. herbarum, R clavispora and B. cinerea. The type of fungal species and the dose of UV irradiance had a significant (P <= 0.001) influence on Nt/N0. The interaction between the fungal species and the UV irradiance dose was significant (P <= 0.004) only when the conidia were exposed to UVB or UVC. The resistance of Cladosporium spp. to UV radiation may explain the ubiquity of Cladosporium spp. in nature and could allow for the abundant populations of Cladosporium spp. often found on the foliage, flowers and fruits of blueberries.
dc.description.funderConicyt Chile
dc.format.extent8 páginas
dc.fuente.origenWOS
dc.identifier.doi10.4067/S0718-16202012000300007
dc.identifier.issn0304-5609
dc.identifier.urihttps://doi.org/10.4067/S0718-16202012000300007
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79400
dc.identifier.wosidWOS:000313400900007
dc.information.autorucAgronomía e Ing. Forestal; Diaz G;S/I;189542
dc.information.autorucAgronomía e Ing. Forestal; Latorre B;S/I;98977
dc.information.autorucFísica;Chuaqui H ;S/I;98761
dc.information.autorucFísica;Rojas S ;S/I;177460
dc.issue.numero3
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final480
dc.pagina.inicio473
dc.publisherPONTIFICIA UNIV CATOLICA CHILE, FAC AGRONOMIA INGENIERIA FORESTAL
dc.revistaCIENCIA E INVESTIGACION AGRARIA
dc.rightsregistro bibliográfico
dc.subjectBotrytis cinerea
dc.subjectCladosporium
dc.subjectblueberry
dc.subjectfungi
dc.subjectPestalotiopsis
dc.subjectUV radiation
dc.subjectVaccinium corymbosum
dc.subjectSOLAR ULTRAVIOLET-RADIATION
dc.subjectTERRESTRIAL ECOSYSTEMS
dc.subjectHEAT-TREATMENT
dc.subjectLEAF REMOVAL
dc.subjectWINE GRAPES
dc.subjectCONIDIA
dc.subjectROT
dc.subjectPROPAGULES
dc.subjectRECOVERY
dc.subjectSURVIVAL
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleGermicidal effect of UV light on epiphytic fungi isolated from blueberry
dc.typeartículo
dc.volumen39
sipa.codpersvinculados189542
sipa.codpersvinculados98977
sipa.codpersvinculados98761
sipa.codpersvinculados177460
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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