Immunological vulnerability and adjustments to environmental thermal variability

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dc.contributor.authorBozinovic, Francisco
dc.contributor.authorCatalan, Tamara P.
dc.contributor.authorKalergis, Alexis M.
dc.date.accessioned2025-01-24T00:07:04Z
dc.date.available2025-01-24T00:07:04Z
dc.date.issued2013
dc.description.abstractEcological physiologists recognize the potential impacts of temperature on physiological traits, however less attention has been paid to changes in thermal variation on a scale that pertains directly to living organisms. Also, few studies have examined the effects of temperature variation or other climatic drivers on host-pathogen interactions. We evaluated the effect of acclimation to ambient temperature variability (0, 4 and 8 degrees C daily variability) on the immune performance in the insect Tenebrio molitor (Coleoptera). We observed that antibacterial activity differed significantly between treatments. In addition, variances of antibacterial activity were larger under the more variable thermal conditions. Similarly to antibacterial responses, tyrosinase phenoloxidase activity was higher in animals living in the most variable thermal condition. We hypothesized that a stress-associated mechanism may affect negatively the constitutive immune activity in T molitor It is well known that acute stress can cause in insects a transient impairment in the resistance to bacterial infection. This increase in susceptibility to diseases is mediated, at least in part, by the release of neuro-hormones in response to stress.
dc.fuente.origenWOS
dc.identifier.eissn0717-6317
dc.identifier.issn0716-078X
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101892
dc.identifier.wosidWOS:000332750700009
dc.issue.numero4
dc.language.isoen
dc.pagina.final483
dc.pagina.inicio475
dc.revistaRevista chilena de historia natural
dc.rightsacceso restringido
dc.subjectecoimmunology
dc.subjectimmune performance
dc.subjectmealworm beetles
dc.subjecttemperature
dc.subjecttyrosinase phenoloxidase
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleImmunological vulnerability and adjustments to environmental thermal variability
dc.typeartículo
dc.volumen86
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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