Immunological vulnerability and adjustments to environmental thermal variability

Ecological 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 c...

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Autores principales:	BOZINOVIC,FRANCISCO, CATALÁN,TAMARA P, KALERGIS,ALEXIS M
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2013
Materias:	ecoimmunology immune performance mealworm beetles temperature tyrosinase phenoloxidase
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2013000400009
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spelling	oai:scielo:S0716-078X20130004000092014-02-03Immunological vulnerability and adjustments to environmental thermal variabilityBOZINOVIC,FRANCISCOCATALÁN,TAMARA PKALERGIS,ALEXIS M ecoimmunology immune performance mealworm beetles temperature tyrosinase phenoloxidase Ecological 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 °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.info:eu-repo/semantics/openAccessSociedad de Biología de ChileRevista chilena de historia natural v.86 n.4 20132013-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2013000400009en10.4067/S0716-078X2013000400009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	ecoimmunology immune performance mealworm beetles temperature tyrosinase phenoloxidase
spellingShingle	ecoimmunology immune performance mealworm beetles temperature tyrosinase phenoloxidase BOZINOVIC,FRANCISCO CATALÁN,TAMARA P KALERGIS,ALEXIS M Immunological vulnerability and adjustments to environmental thermal variability
description	Ecological 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 °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.
author	BOZINOVIC,FRANCISCO CATALÁN,TAMARA P KALERGIS,ALEXIS M
author_facet	BOZINOVIC,FRANCISCO CATALÁN,TAMARA P KALERGIS,ALEXIS M
author_sort	BOZINOVIC,FRANCISCO
title	Immunological vulnerability and adjustments to environmental thermal variability
title_short	Immunological vulnerability and adjustments to environmental thermal variability
title_full	Immunological vulnerability and adjustments to environmental thermal variability
title_fullStr	Immunological vulnerability and adjustments to environmental thermal variability
title_full_unstemmed	Immunological vulnerability and adjustments to environmental thermal variability
title_sort	immunological vulnerability and adjustments to environmental thermal variability
publisher	Sociedad de Biología de Chile
publishDate	2013
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2013000400009
work_keys_str_mv	AT bozinovicfrancisco immunologicalvulnerabilityandadjustmentstoenvironmentalthermalvariability AT catalantamarap immunologicalvulnerabilityandadjustmentstoenvironmentalthermalvariability AT kalergisalexism immunologicalvulnerabilityandadjustmentstoenvironmentalthermalvariability
_version_	1718439686727270400

Immunological vulnerability and adjustments to environmental thermal variability

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