温度和年龄对成年雌蚊的体型、体重和身体组成有单独和相互作用的影响

IF 2.3 2区 农林科学 Q1 ENTOMOLOGY
Jordyn S. Barr, Tania Y. Estevez-Lao, Marina Khalif, Saksham Saksena, Sagnik Yarlagadda, Ommay Farah, Yasmine Shivere, Julián F. Hillyer
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引用次数: 0

摘要

大多数昆虫都是恒温昆虫和外温昆虫,因此它们的体温会波动,并与环境温度密切相关。全球气温的上升正在通过改变昆虫的生存、繁殖和传播疾病的能力来影响它们的生理机能。衰老也会影响昆虫的生理机能,因为随着昆虫的衰老,身体会衰老。尽管温度和年龄都会影响昆虫生物学,但这些因素在历史上一直是单独研究的。因此,尚不清楚温度和年龄是否或如何相互作用来塑造昆虫的生理机能。在这里,我们研究了温暖的温度(27°C、30°C和32°C)、衰老(羽化后1、5、10和15天)及其相互作用对冈比亚按蚊体型和身体组成的影响。我们发现,通过腹部和胫骨长度测量,温度升高会导致成年蚊子体型略小。衰老会改变腹部长度和干重,其方式与能量资源的增加和变态后发生的组织重塑以及随后发生的基于衰老的衰退有关。此外,成年蚊子的碳水化合物和脂质含量不受温度的显著影响,而是受衰老的影响:碳水化合物含量随着年龄的增长而增加,而脂质含量在成年后的头几天增加,然后减少。蛋白质含量随着温度的升高和衰老而降低,而与衰老相关的降低在温度升高时加速。总之,温度和年龄,无论是单独的还是在较小程度上相互作用,都决定了成年蚊子的大小和组成。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Temperature and age, individually and interactively, shape the size, weight, and body composition of adult female mosquitoes

Temperature and age, individually and interactively, shape the size, weight, and body composition of adult female mosquitoes

Most insects are poikilotherms and ectotherms, so their body temperature fluctuates and closely aligns with the temperature of their environment. The rise in global temperatures is affecting the physiology of insects by altering their ability to survive, reproduce, and transmit disease. Aging also impacts insect physiology because the body deteriorates via senescence as the insect ages. Although temperature and age both impact insect biology, these factors have historically been studied in isolation. So, it is unknown whether or how temperature and age interact to shape insect physiology. Here, we investigated the effects of warmer temperature (27 °C, 30 °C and 32 °C), aging (1, 5, 10, and 15 days post-eclosion), and their interaction on the size and body composition of the mosquito, Anopheles gambiae. We found that warmer temperatures result in slightly smaller adult mosquitoes, as measured by abdomen and tibia length. Aging alters both abdominal length and dry weight in a manner that correlates with the increase in energetic resources and tissue remodeling that occurs after metamorphosis and the senescence-based decline that ensues later. Moreover, the carbohydrate and lipid contents of adult mosquitoes are not meaningfully affected by temperature but are altered by aging: carbohydrate content increases with age whereas lipid content increases over the first few days of adulthood and then decreases. Protein content decreases with both rising temperature and aging, and the aging-associated decrease accelerates at warmer temperatures. Altogether, temperature and age, individually and to a lesser extent interactively, shape the size and composition of adult mosquitoes.

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来源期刊
Journal of insect physiology
Journal of insect physiology 生物-昆虫学
CiteScore
4.50
自引率
4.50%
发文量
77
审稿时长
57 days
期刊介绍: All aspects of insect physiology are published in this journal which will also accept papers on the physiology of other arthropods, if the referees consider the work to be of general interest. The coverage includes endocrinology (in relation to moulting, reproduction and metabolism), pheromones, neurobiology (cellular, integrative and developmental), physiological pharmacology, nutrition (food selection, digestion and absorption), homeostasis, excretion, reproduction and behaviour. Papers covering functional genomics and molecular approaches to physiological problems will also be included. Communications on structure and applied entomology can be published if the subject matter has an explicit bearing on the physiology of arthropods. Review articles and novel method papers are also welcomed.
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