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Increase in temperature enriches heat tolerant taxa in Aedes aegypti midguts.


ABSTRACT: Insect midgut microbial symbionts have been considered as an integral component in thermal adaptation due to their differential thermal sensitivity. Altered midgut microbial communities can influence both insect physiology and competence for important vector-borne pathogens. This study sought to gain insights into how Aedes aegypti midgut microbes and life history traits are affected by increase in baseline diurnal temperature. Increase in temperature resulted in the enrichment of specific taxa with Bacillus being the most enriched. Bacillus is known to be heat tolerant. It also resulted in a dissimilar microbial assemblage (Bray-Curtis Index, PERMANOVA, F?=?2.2063; R2?=?0.16706; P?=?0.002) and reduced survivorship (Log-rank [Mantel-Cox] test, Chi-square?=?35.66 df?=?5, P?

SUBMITTER: Onyango GM 

PROVIDER: S-EPMC7644690 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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Increase in temperature enriches heat tolerant taxa in Aedes aegypti midguts.

Onyango Gorreti Maria GM   Bialosuknia M Sean MS   Payne F Anne FA   Mathias Nicholas N   Ciota T Alexander TA   Kramer D Laura DL  

Scientific reports 20201105 1


Insect midgut microbial symbionts have been considered as an integral component in thermal adaptation due to their differential thermal sensitivity. Altered midgut microbial communities can influence both insect physiology and competence for important vector-borne pathogens. This study sought to gain insights into how Aedes aegypti midgut microbes and life history traits are affected by increase in baseline diurnal temperature. Increase in temperature resulted in the enrichment of specific taxa  ...[more]

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