Adipokinetic hormone signaling regulates adult dehydration resistance in the migratory locust DOI Creative Commons
Xianliang Huang, Dai Shi, Kai Deng

et al.

Journal of Integrative Agriculture, Journal Year: 2024, Volume and Issue: 23(9), P. 3104 - 3117

Published: March 4, 2024

Drought events have become more severe under climate change, and this can pose a major threat to the survival of various organisms. The molecular mechanisms involved in dehydration resistance are not well known. Here, adults migratory locust, Locusta migratoria, were subjected food-mediated dehydration, adipokinetic hormone (AKH) signaling was found play key role regulating resistance. Specifically, shortened lifespan, increased body weight loss, reduced water loss rate adult locusts. Global transcriptome profiles revealed variations tissue-specific gene expression between dehydration-resistant locusts normal Importantly, selection exposure induced prominent AKH genes retrocerebral complex Furthermore, individual knockdown AKH1, AKH2, or receptor (AKHR) accelerated lifespan conditions, trehalose supplementation ameliorated negative effects caused by interference with AKHR. These findings demonstrated that AKH/AKHR signaling-dependent metabolism plays crucial locust thus provide novel insights into regulatory mechanism underlying drought

Language: Английский

Transcriptome and Neuroendocrinome Responses to Environmental Stress in the Model and Pest Insect Spodoptera frugiperda DOI Open Access

Wei Gong,

Jan Lubawy, Paweł Marciniak

et al.

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(2), P. 691 - 691

Published: Jan. 15, 2025

The fall armyworm, Spodoptera frugiperda, is one of the most notorious pest insects, causing damage to more than 350 plant species, and feared worldwide as an invasive species since it exhibits high adaptivity against environmental stress. Here, we therefore investigated its transcriptome responses four different types stresses, namely cold, heat, no water food. We used brain samples our interest was in neuroendocrine responses, while previous studies whole bodies larvae or moths. In general, were complex encompassed a vast array neuropeptides (NPs) biogenic amines (BAs). NPs mainly involved ion homeostasis regulation (ITP ITPL) metabolic pathways (AKH, ILP), this accompanied by changes BA (DA, OA) biosynthesis. Cold no-water stress changed NP gene expression with same patterns but clearly separated from each other, divergent pattern shown after no-food conclusion, data provide foundation important model insect candidate BAs other marker genes response stress, also potential new targets manage insects.

Language: Английский

Citations

1

Adapting to climate extremes: Implications for insect populations and sustainable solutions DOI

Arjumand John,

Amaninder Kaur Riat,

Kaisar Ahmad Bhat

et al.

Journal for Nature Conservation, Journal Year: 2024, Volume and Issue: 79, P. 126602 - 126602

Published: March 16, 2024

Language: Английский

Citations

7

Cross-talk between low temperature and other environmental factors DOI
Leigh Boardman

Current Opinion in Insect Science, Journal Year: 2024, Volume and Issue: 63, P. 101193 - 101193

Published: March 13, 2024

Language: Английский

Citations

5

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

Substantial urbanization‐driven declines of larval and adult moths in a subtropical environment DOI Creative Commons
Michael W. Belitz,

Asia Sawyer,

Lillian K. Hendrick

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(3)

Published: March 1, 2024

Abstract Recent work has shown the decline of insect abundance, diversity and biomass, with potential implications for ecosystem services. These declines are especially pronounced in regions high human activity, urbanization is emerging as a significant contributing factor. However, scale these traits that determine variation species‐specific responses remain less well understood, subtropical tropical regions, where urban footprints rapidly expanding. Here, we surveyed moths across an entire year protected forested sites gradient to test how caterpillar adult life stages (Lepidoptera) impacted by urbanization. Specifically, assess development affects total biomass caterpillars, abundance quantify richness phylogenetic macro‐moths development. Additionally, explore life‐history condition species' At community level, find decreases moth abundance. We also sharp response phylogeny, leading decrease species more sites. Finally, our study found smaller than larger environments, perhaps highlighting tradeoffs metabolic costs heat favoring over relative benefits dispersal moths. In summary, research underscores far‐reaching consequences on provides compelling evidence forests alone may not be sufficient safeguard biodiversity cities.

Language: Английский

Citations

4

Integrating water balance mechanisms into predictions of insect responses to climate change DOI
Brent J. Sinclair,

Stefane Saruhashi,

John S. Terblanche

et al.

Journal of Experimental Biology, Journal Year: 2024, Volume and Issue: 227(10)

Published: May 15, 2024

ABSTRACT Efficient water balance is key to insect success. However, the hygric environment changing with climate change; although there are compelling models of thermal vulnerability, often neglected in predictions. Insects survive desiccating conditions by reducing loss, increasing their total amount (and replenishing it) and tolerance dehydration. The physiology underlying these traits reasonably well understood, as sources variation phenotypic plasticity. intersect at high temperatures, such that mortality sometimes determined dehydration, rather than heat (especially during long exposures dry conditions). Furthermore, interact determine survival. In this Commentary, we propose identifying a threshold where cause shifts between dehydration temperature, it should be possible predict from trait measurements perhaps eventually priori physiological or -omic markers).

Language: Английский

Citations

4

Characterizing the Roles of Life Stage and Season on the Prevalence of Select Viral Pathogens in Acheta domesticus Crickets on a Commercial Cricket Farm in the United States DOI Creative Commons
Kimberly L. Boykin,

Amy Bitter,

Zoey N. Lex

et al.

Veterinary Sciences, Journal Year: 2025, Volume and Issue: 12(3), P. 191 - 191

Published: Feb. 20, 2025

Commercial cricket production has been plagued by viral disease outbreaks that have decimated their potential outputs and profit margins. To date, no epidemiological studies performed to estimate the prevalence of major viruses affecting crickets raised in commercial settings. A cross-sectional study was three important (Acheta domesticus densovirus [AdDV], Acheta volvovirus [AdVVV], invertebrate iridovirus 6 [CrIV]). Samples were collected across age groups (2-, 4-, 6-week-olds) seasons (January, May, August, October) determine effect these variables had on rates. Quantitative real-time PCR revealed following high overall rates: 46.7, 100, 100% for AdDV, AdVVV, CrIV, respectively. Viral loads varied from 101–5 102–7 102–9 CrIV. AdDV rates statistically significant season (age: χ2 = 8.3, p 0.015; season: 59.7, < 0.001), with more likely be infected as they aged during colder winter months. CrIV followed similar trends when looking at changes between ages seasons. AdVVV experienced a spike all month August. Understanding epidemiology is instrumental determining best management practices commercially crickets.

Language: Английский

Citations

0

Water stress and tomato yellow ring orthotospovirus (TYRV) infection impact the demographic parameters of the western flower thrips, Frankliniella occidentalis (Thysanoptera: Thripidae) DOI
Maryam Aleosfoor, Lida Fekrat, Kambiz Minaei

et al.

Crop Protection, Journal Year: 2025, Volume and Issue: unknown, P. 107179 - 107179

Published: Feb. 1, 2025

Language: Английский

Citations

0

Crop pest responses to global changes in climate and land management DOI
Chun‐Sen Ma, Bingxin Wang, Xuejing Wang

et al.

Nature Reviews Earth & Environment, Journal Year: 2025, Volume and Issue: 6(4), P. 264 - 283

Published: April 8, 2025

Language: Английский

Citations

0

The impact of sugar diet on humidity preference, survival, and host landing in mosquitoes DOI
Shyh‐Chi Chen, Christopher J. Holmes, Oluwaseun M. Ajayi

et al.

Journal of Medical Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: April 13, 2025

Mosquito-borne diseases have caused more than 1 million deaths each year. There is an urgent need to develop effective way reduce mosquito-host interaction mitigate disease transmission. Sugar diets long been linked abnormal physiology in animals, making them potential candidates for mosquito control. Here, we show the impact of sugar on humidity preference and survival Aedes aegypti (Gainesville) Culex pipiens (Buckeye). Two-choice assays with high low relative (80% 50% RH) that species-specific. In comparison Cx. pipiens, various resulted marked reductions avidity Ae. aegypti, which exhibited significant differences. Among diets, arabinose significantly reduced rate mosquitoes at concentrations. Moreover, found host landing was not impacted by feeding different types. Our study suggests specific treatments could be applied control dampening their reducing lifespan, thus mosquito-borne

Language: Английский

Citations

0