Interplay between behavioural thermoregulation and immune response in mealworms

Catalán, Tamara P.; Niemeyer, Hermann M.; Kalergis, Alexis M.; Bozinovic, Francisco

doi:10.1016/j.jinsphys.2012.08.011

Cited by 19 publications

(13 citation statements)

References 53 publications

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“…To our knowledge no studies have reported upon the development of thermal choice behaviour in zebrafish larvae or upon the activation of the immune system under such conditions. A few studies have suggested that fish larvae selecting higher environmental temperatures would exhibit an improved immune performance (Casterlin, 1977;Catalán et al, 2012) however no gene expression data was reported.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Behavioural fever in zebrafish larvae

Rey

Moiche

Mackenzie

2017

Developmental & Comparative Immunology

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28• Behavioural fever is a synergic immune response to infection in ectotherms. 29• Zebrafish larvae (Danio rerio) select their preferred temperature within a 30 vertical gradient tank. 31• The onset of the behavioural fever response was established at 18-20 dpf. 32• Under an immersion challenge with double-stranded RNA (dsRNA) zebrafish 33 larvae display a behavioural fever response coupled to increased antiviral 34 mRNA transcript abundance. 35 Abstract 36Behavioural fever has been reported in different species of mobile ectotherms 37 including the zebrafish, Danio rerio, in response to exogenous pyrogens. In this study 38 we report, to our knowledge for the first time, upon the ontogenic onset of behavioural Keywords 59Zebrafish larvae, thermo-preference, behavioural fever, antiviral response, dsRNA 60 challenge, larval development, temperature choice.

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Section: Accepted Manuscriptmentioning

confidence: 99%

Behavioural fever in zebrafish larvae

Rey

Moiche

Mackenzie

2017

Developmental & Comparative Immunology

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“…Rates of enzymatic‐based immune responses, such as PO activation, have been shown to increase positively with increasing temperature within a threshold range (Adamo & Lovett, 2011; Catalán, Niemeyer, & Kalergis, 2012; Ferguson, Heinrichs, & Sinclair, 2016; Fuller, Postava‐Davignon, West, & Rosengaus, 2011), but other commonly recorded immune measures report a more moderate optimum. The ability of mosquitoes to melanize sephadex beads, for example, significantly decreased as temperature increased from 24–30°C (Suwanchaichinda & Paskewitz, 1998) and has been shown to peak at 18°C (Murdock et al., 2012).…”

Section: Introductionmentioning

confidence: 99%

“…Alternatively, hosts may be able to use temperature to their advantage, employing behavioral thermoregulation to induce a fever that restricts pathogen growth (Elliot, Blanford, & Thomas, 2002). Work has started to investigate the temperature effects on immune responses and life‐history parameters following challenge with an immune elicitor (Catalán et al., 2012). However, temperature stress was only applied postchallenge.…”

Section: Introductionmentioning

confidence: 99%

“…Rates of enzymatic-based immune responses, such as PO activation, have been shown to increase positively with increasing temperature within a threshold range (Adamo & Lovett, 2011;Catalán, Niemeyer, & Kalergis, 2012;Ferguson, Heinrichs, & Sinclair, 2016;Fuller, Postava-Davignon, West, & Rosengaus, 2011), but other commonly recorded immune measures report a more moderate optimum.…”

Section: Introductionmentioning

confidence: 99%

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Responses to a warming world: Integrating life history, immune investment, and pathogen resistance in a model insect species

Laughton

O'Connor

Knell

2017

Ecology and Evolution

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Environmental temperature has important effects on the physiology and life history of ectothermic animals, including investment in the immune system and the infectious capacity of pathogens. Numerous studies have examined individual components of these complex systems, but little is known about how they integrate when animals are exposed to different temperatures. Here, we use the Indian meal moth (Plodia interpunctella) to understand how immune investment and disease resistance react and potentially trade‐off with other life‐history traits. We recorded life‐history (development time, survival, fecundity, and body size) and immunity (hemocyte counts, phenoloxidase activity) measures and tested resistance to bacterial (E. coli) and viral (Plodia interpunctella granulosis virus) infection at five temperatures (20–30°C). While development time, lifespan, and size decreased with temperature as expected, moths exhibited different reproductive strategies in response to small changes in temperature. At cooler temperatures, oviposition rates were low but tended to increase toward the end of life, whereas warmer temperatures promoted initially high oviposition rates that rapidly declined after the first few days of adult life. Although warmer temperatures were associated with strong investment in early reproduction, there was no evidence of an associated trade‐off with immune investment. Phenoloxidase activity increased most at cooler temperatures before plateauing, while hemocyte counts increased linearly with temperature. Resistance to bacterial challenge displayed a complex pattern, whereas survival after a viral challenge increased with rearing temperature. These results demonstrate that different immune system components and different pathogens can respond in distinct ways to changes in temperature. Overall, these data highlight the scope for significant changes in immunity, disease resistance, and host–parasite population dynamics to arise from small, biologically relevant changes to environmental temperature. In light of global warming, understanding these complex interactions is vital for predicting the potential impact of insect disease vectors and crop pests on public health and food security.

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“…The melanin-based immune system, in a number of insect species, is regulated by environmental factors such as the thermal environment because temperature influences the host-pathogen interaction by regulating pathogen growth and host disease resistance [ 22 , 23 ]. A host will invest more in immune function when exposed to a greater risk of infection by a pathogen [ 24 ], as a result this will influence body color.…”

Section: Introductionmentioning

confidence: 99%

An Opposite Pattern to the Conventional Thermal Hypothesis: Temperature-Dependent Variation in Coloration of Adults of Saccharosydne procerus (Homoptera: Delphacidae)

et al. 2015

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Melanism is a common polymorphism in many insect species that also influences immune function. According to the thermal melanin hypothesis, ectothermic individuals from cooler environments have darker cuticles and higher polyphenol oxidase (PO) levels, which represent a better immunocompetence. In this study, the links among environmental temperature, melanism, and PO activity of Saccharosydne procerus (Matsumura) were examined. Most S. procerus have a black spot on their forewings at high temperatures in the field and in the laboratory. In PO activity assay, a positive association between PO level and temperature was found. Our results showed that a diversification of melanism occurred under different temperatures and that melanism in S. procerus presented an opposite pattern to the one proposed by the thermal hypothesis.

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Interplay between behavioural thermoregulation and immune response in mealworms

Cited by 19 publications

References 53 publications

Behavioural fever in zebrafish larvae

Behavioural fever in zebrafish larvae

Responses to a warming world: Integrating life history, immune investment, and pathogen resistance in a model insect species

An Opposite Pattern to the Conventional Thermal Hypothesis: Temperature-Dependent Variation in Coloration of Adults of Saccharosydne procerus (Homoptera: Delphacidae)

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