Live calcium imaging of Aedes aegypti neuronal tissues reveals differential importance of chemosensory systems for life-history-specific foraging strategies.

Autor: Bui M; Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA., Shyong J; Department of Entomology and Riverside Center for Disease Vector Research, Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, 92521, USA., Lutz EK; Department of Biology, University of Washington, Seattle, WA, 98195, USA., Yang T; Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA., Li M; Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA., Truong K; Department of Entomology and Riverside Center for Disease Vector Research, Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, 92521, USA., Arvidson R; Department of Entomology and Riverside Center for Disease Vector Research, Institute for Integrative Genome Biology, University of California, Riverside, Riverside, CA, 92521, USA., Buchman A; Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA., Riffell JA; Department of Biology, University of Washington, Seattle, WA, 98195, USA., Akbari OS; Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA. oakbari@ucsd.edu.; Tata Institute for Genetics and Society, University of California, San Diego, La Jolla, CA, 92093, USA. oakbari@ucsd.edu.
Jazyk: angličtina
Zdroj: BMC neuroscience [BMC Neurosci] 2019 Jun 17; Vol. 20 (1), pp. 27. Date of Electronic Publication: 2019 Jun 17.
DOI: 10.1186/s12868-019-0511-y
Abstrakt: Background: The mosquito Aedes aegypti has a wide variety of sensory pathways that have supported its success as a species as well as a highly competent vector of numerous debilitating infectious pathogens. Investigations into mosquito sensory systems and their effects on behavior are valuable resources for the advancement of mosquito control strategies. Numerous studies have elucidated key aspects of mosquito sensory systems, however there remains critical gaps within the field. In particular, compared to that of the adult form, there has been a lack of studies directed towards the immature life stages. Additionally, although numerous studies have pinpointed specific sensory receptors as well as responding motor outputs, there has been a lack of studies able to monitor both concurrently.
Results: To begin filling aforementioned gaps, here we engineered Ae. aegypti to ubiquitously express a genetically encoded calcium indicator, GCaMP6s. Using this strain, combined with advanced microscopy, we simultaneously measured live stimulus-evoked calcium responses in both neuronal and muscle cells with a wide spatial range and resolution.
Conclusions: By coupling in vivo live calcium imaging with behavioral assays we were able to gain functional insights into how stimulus-evoked neural and muscle activities are represented, modulated, and transformed in mosquito larvae enabling us to elucidate mosquito sensorimotor properties important for life-history-specific foraging strategies.
Databáze: MEDLINE
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