Soft ticks perform evaporative cooling during blood-feeding

Lazzari, Claudio R.; Fauquet, Aurélie; Lahondère, Chloé; Araújo, Ricardo Nascimento; Pereira, Marcos H.

doi:10.1016/j.jinsphys.2021.104197

Cited by 8 publications

(3 citation statements)

References 41 publications

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“…Another strategy, evaporative cooling, consists of excreting and retaining droplets of fluid in order to cool down (Heinrich, 1980a;Prange, 1996). Several hematophagous arthropods, including sandflies (Sadlova et al, 2013), mosquitoes (Lahondère and Lazzari, 2012) and ticks (Lazzari et al, 2020), use this method to cool down during blood intake. Mosquitoes use prediuresis droplets for evaporative cooling, in which the insect excretes a droplet composed of fresh blood and urine and holds it at the tip of the abdomen to cool down (Lahondère and Lazzari, 2012).…”

Section: Discussionmentioning

confidence: 99%

Beat the heat: Culex quinquefasciatus regulates its body temperature during blood feeding

Reinhold

Shaw

Lahondère

2021

Journal of Thermal Biology

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Section: Discussionmentioning

confidence: 99%

Beat the heat: Culex quinquefasciatus regulates its body temperature during blood feeding

Reinhold

Shaw

Lahondère

2021

Journal of Thermal Biology

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“…Nevertheless, insects have developed strategies to avoid thermal stress and some species can rely on thermoregulation processes (Heinrich, 1993). For example, they can for adjust their body position toward the sun (May, 1976), seek shade (Herrera, 1997), use evaporative cooling of droplets of nectar (Heinrich, 1979) or urine and blood (Lahondère and Lazzari, 2012;Lazzari et al, 2021;Reinhold et al, 2021), or actively produce or release heat via counter-current heat exchangers (Heinrich 1976;Lahondère et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on mosquito olfaction

Lahondère

Vinauger

Liaw

et al. 2023

Preprint

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Mosquitoes use a wide range of cues to find a host to feed on, eventually leading to the transmission of pathogens. Among them, olfactory cues (e.g., host emitted odors, including CO2, and skin volatiles) play a central role in mediating host seeking behaviors. While mosquito olfaction can be impacted by many factors, such as the physiological state of the insect (e.g., age, reproductive state), the impact of environmental temperature on the olfactory system remains unknown. In this study, we quantified the behavioral responses of Aedes aegypti mosquitoes, vectors of dengue, yellow fever and Zika viruses, to host and plant related odors under different environmental temperatures.

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“…Ticks are obligate and hematophagous parasitic arthropods that serve as major vectors for several human and animal pathogens [ 1 ]. They transmit pathogens to the vertebrate host during the blood meal [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Anti-tick vaccine candidate subolesin is important for blood feeding and innate immune gene expression in soft ticks

Nandy,

Tamakloe,

Sonenshine

et al. 2023

PLoS Negl Trop Dis

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Subolesin is a conserved molecule in both hard and soft ticks and is considered as an effective candidate molecule for the development of anti-tick vaccine. Previous studies have reported the role of subolesin in blood feeding, reproduction, development, and gene expression in hard ticks. However, studies addressing the role of subolesin in soft ticks are limited. In this study, we report that subolesin is not only important in soft tick Ornithodoros turicata americanus blood feeding but also in the regulation of innate immune gene expression in these ticks. We identified and characterized several putative innate immune genes including Toll, Lysozyme precursor (Lp), fibrinogen-domain containing protein (FDP), cystatin and ML-domain containing protein (MLD) in O. turicata americanus ticks. Quantitative real-time polymerase chain reaction analysis revealed the expression of these genes in both O. turicata americanus salivary glands and midgut and in all developmental stages of these soft ticks. Significantly increased expression of fdp was noted in salivary glands and midgut upon O. turicata americanus blood feeding. Furthermore, RNAi-mediated knockdown of O. turicata americanus subolesin expression affected blood feeding and innate immune gene expression in these ticks. Significant downregulation of toll, lp, fdp, cystatin, and mld transcripts was evident in sub-dsRNA-treated ticks when compared to the levels noted in mock-dsRNA-treated control. Collectively, our study not only reports identification and characterization of various innate immune genes in O. turicata americanus ticks but also provides evidence on the role of subolesin in blood feeding and innate immune gene expression in these medically important ticks.

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Soft ticks perform evaporative cooling during blood-feeding

Cited by 8 publications

References 41 publications

Beat the heat: Culex quinquefasciatus regulates its body temperature during blood feeding

Beat the heat: Culex quinquefasciatus regulates its body temperature during blood feeding

Effect of temperature on mosquito olfaction

Anti-tick vaccine candidate subolesin is important for blood feeding and innate immune gene expression in soft ticks

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