Increase in temperature enriches heat tolerant taxa in Aedes aegypti midguts.
Increase in temperature enriches heat tolerant taxa in Aedes aegypti midguts.
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DOI：
10.1038/s41598-020-76188-x
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发表时间：
2020-11-05
影响因子：
4.6
通讯作者：
Kramer DL
中科院分区：
文献类型：
--
作者：
Onyango GM;Bialosuknia MS;Payne FA;Mathias N;Ciota TA;Kramer DL
昆虫中肠微生物共生体因其对温度的敏感性而被认为是昆虫热适应的重要组成部分。改变中肠微生物群落可以影响昆虫生理和重要的媒介传播病原体的能力。本研究旨在深入了解埃及伊蚊中肠微生物和生活史特征如何受到基线昼夜温度升高的影响。温度的升高导致特定类群的富集，其中芽孢杆菌属的富集程度最高。已知芽孢杆菌是耐热的。它还导致不同的微生物聚集（Bray-Curtis指数，PERMANOVA，F = 2.2063; R2 = 0.16706; P = 0.002）和存活率降低（对数秩[Mantel-Cox]检验，卡方= 35.66 df = 5，P < 0.0001）。吸血导致蚊子中肠中病原菌如嗜酸金杆菌的增殖。这些结果表明，温度在实际参数范围内的变化，如2 °C Ae。自然界中的埃及伊蚊可能会影响中肠微生物组，有利于特定的分类群，从而改变蚊子的适应性、适应性和病媒-病原体的相互作用。
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 < 0.0001). Blood meal intake resulted in proliferation of pathogenic bacteria such as Elizabethkingia in the midgut of the mosquitoes. These results suggest that alteration of temperature within realistic parameters such as 2 °C for Ae. aegypti in nature may impact the midgut microbiome favoring specific taxa that could alter mosquito fitness, adaptation and vector–pathogen interactions.
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影响因子：
3.7
作者：
Apte-Deshpande A;Paingankar M;Gokhale MD;Deobagkar DN
通讯作者：
Deobagkar DN
DOI：
10.1017/s0007485300053499
发表时间：
1958-01-01
期刊：
BULL ENT RES
影响因子：
--
作者：
BAR-ZEEV, MICHA
通讯作者：
BAR-ZEEV, MICHA
影响因子：
4.6
作者：
Buck M;Nilsson LK;Brunius C;Dabiré RK;Hopkins R;Terenius O
通讯作者：
Terenius O
DOI：
10.1098/rspb.2008.1957
发表时间：
2009-06-07
影响因子：
4.7
作者：
Huey, Raymond B.;Deutsch, Curtis A.;Garland, Theodore, Jr.
通讯作者：
Garland, Theodore, Jr.
影响因子：
2.1
作者：
BRIEGEL, H
通讯作者：
BRIEGEL, H