Multiple blood feeding bouts in mosquitoes allow for prolonged survival and are predicted to increase viral transmission during drought DOI Open Access
Christopher J. Holmes,

Souvik Chakraborty,

Oluwaseun M. Ajayi

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 2, 2024

Abstract Survival through periods of drought is critical for mosquitoes to reside in semi-arid regions with humans. Dry conditions increase blood feeding propensity mosquitoes, but it unknown if dehydration-induced bloodmeals beyond what necessary reproduction. Following a bloodmeal, prolonged exposure dry increased secondary by nearly two-fold, and chronic allowed survive up twenty days without access water sources. This refeeding did not alter the number eggs generated, suggesting this hydration nutrient replenishment. Exposure desiccating following bloodmeal resulted activity, decreased sleep levels, prompted return CO 2 sensing before egg deposition. Increased during vitellogenic stage higher survival are predicted pathogen transmission, allowing rapid rebound mosquito populations when more favorable return. explains elevated levels specific arbovirus cases association periodic warrants further consideration as climate change progresses. Overall, these results solidify our understanding role on how dehydration contributes vectorial capacity disease transmission dynamics Significance statement Bouts yield substantial changes insects’ physiology behavior. Mosquitoes exceptionally prone due high loss rates, few integrative studies have examined comprehensive impact mosquitoes. Here, we demonstrate that lead multiple events, periods. repeated associated activity an early attraction vertebrate hosts. season frequent mosquito-borne viruses. suggests prevalence will varying impacts diseases.

Language: Английский

Multiple blood feeding bouts in mosquitoes allow for prolonged survival and are predicted to increase viral transmission during dry periods DOI Creative Commons
Christopher J. Holmes,

Souvik Chakraborty,

Oluwaseun M. Ajayi

et al.

iScience, Journal Year: 2025, Volume and Issue: 28(2), P. 111760 - 111760

Published: Jan. 9, 2025

Dry conditions increase blood feeding in mosquitoes, but it is unknown if dehydration-induced bloodmeals are increased beyond what necessary for reproduction. In this study, we investigated the role of dehydration secondary behaviors mosquitoes. Following an initial bloodmeal, prolonged exposure to dry mosquitoes by nearly two-fold, and chronic allowed survive up 20 days without access water. Exposure desiccating following a bloodmeal resulted activity, decreased sleep levels, prompted return CO2 sensing before egg deposition. Increased higher survival during periods predicted pathogen transmission, allowing rapid rebound mosquito populations when favorable return. Overall, these results solidify our understanding how impact that contributes transmission dynamics.

Language: Английский

Citations

2
Dehydration and tomato spotted wilt virus infection combine to alter feeding and survival parameters for the western flower thrips, Frankliniella occidentalis DOI Creative Commons
Samuel T. Bailey,

Alekhya Kondragunta,

Hyojin A. Choi

et al.

Current Research in Insect Science, Journal Year: 2024, Volume and Issue: 6, P. 100086 - 100086

Published: Jan. 1, 2024

Dehydration and tomato spotted wilt virus (TSWV) infection substantially impact the feeding of western flower thrips, Frankliniella occidentalis. Until now, dynamics between these biotic abiotic stresses have not been examined for thrips. Here, we report water balance characteristics changes in other biological parameters during with TSWV There were no apparent differences male or female Our results show that, although thrips are minimally impacted by infection, increase activity when dehydration combined suggests that transmission could be increased under periods drought. Importantly, survival progeny generation impaired bouts. The negative on reproduction interactions will likely reduce populations. opposite effects feeding/activity survival/reproduction infected suggest vectorial capacity minor transmission. As stress significantly impacts insect-plant-virus dynamics, studies highlight need to measure details all understand thrips-TSWV their role as viral vector plants.

Language: Английский

Citations

5
Molecular insights into water balance disruption as a pest control strategy for Rhyzopertha dominica (F.) DOI
Yongsheng Bai,

Guiyao Wang,

Ru Zhang

et al.

Journal of Stored Products Research, Journal Year: 2025, Volume and Issue: 112, P. 102593 - 102593

Published: Feb. 21, 2025

Language: Английский

Citations

0
Multiple blood feeding bouts in mosquitoes allow for prolonged survival and are predicted to increase viral transmission during drought DOI Open Access
Christopher J. Holmes,

Souvik Chakraborty,

Oluwaseun M. Ajayi

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: June 2, 2024

Abstract Survival through periods of drought is critical for mosquitoes to reside in semi-arid regions with humans. Dry conditions increase blood feeding propensity mosquitoes, but it unknown if dehydration-induced bloodmeals beyond what necessary reproduction. Following a bloodmeal, prolonged exposure dry increased secondary by nearly two-fold, and chronic allowed survive up twenty days without access water sources. This refeeding did not alter the number eggs generated, suggesting this hydration nutrient replenishment. Exposure desiccating following bloodmeal resulted activity, decreased sleep levels, prompted return CO 2 sensing before egg deposition. Increased during vitellogenic stage higher survival are predicted pathogen transmission, allowing rapid rebound mosquito populations when more favorable return. explains elevated levels specific arbovirus cases association periodic warrants further consideration as climate change progresses. Overall, these results solidify our understanding role on how dehydration contributes vectorial capacity disease transmission dynamics Significance statement Bouts yield substantial changes insects’ physiology behavior. Mosquitoes exceptionally prone due high loss rates, few integrative studies have examined comprehensive impact mosquitoes. Here, we demonstrate that lead multiple events, periods. repeated associated activity an early attraction vertebrate hosts. season frequent mosquito-borne viruses. suggests prevalence will varying impacts diseases.

Language: Английский

Citations

3