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You searched for: Subject "insect physiology" Remove constraint Subject: "insect physiology"
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1. Hollow mandibles: Structural adaptation to high-speed and powerful strike in the trap-jaw ant Odontomachus monticola

Author:
Zixin Wang; Yuping Zhan; Yunqiang Yang; Jianing Wu
Source:
Journal of insect physiology 2022 v.141 pp. 104426
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Odontomachus; energy; micro-computed tomography; risk;     Show all 5 Subjects
Abstract:
... The trap-jaw ant Odontomachus monticola manipulates its hollow mandibles to generate extremely high speed to impact various objects through a catapult mechanism, making the violent collision occur between the mandible and the impacted objects, which increases the risk of structural failure. However, how the ant balances the trade-off between the powerful clamping and impact resistance by using thi ...
DOI:
10.1016/j.jinsphys.2022.104426

2. Characterizing the relative abundance of circadian transcription factors in diapausing and nondiapausing Northern house mosquitoes

Author:
Caitlin Peffers; Megan E. Meuti
Source:
Journal of insect physiology 2022 v.140 pp. 104404
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Culex pipiens; West Nile virus; adults; autumn; diapause; photoperiod; summer;     Show all 8 Subjects
Abstract:
... The Northern house mosquito (Culex pipiens) is a major vector of West Nile virus. To survive harsh conditions in winter adult females of Cx. pipiens enter a state of arrested reproductive development called diapause. Diapause is triggered by the short daylengths of late summer and early fall. The methods by which Cx. pipiens measures daylength are still unknown. However, it is suspected that clock ...
DOI:
10.1016/j.jinsphys.2022.104404

3. Calmidazolium induces a decrease in nicotine-induced currents and intracellular calcium levels after pulse application of nicotine onto insect neurosecretory cells

Author:
Jean-Noël Houchat; Alison Cartereau; Emiliane Taillebois; Steeve H. Thany
Source:
Journal of insect physiology 2022 v.139 pp. 104385
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; bungarotoxins; calcium; calmodulin; excretion; insects; mammals; neurohormones; nicotine; nicotinic receptors; reproduction;     Show all 11 Subjects
Abstract:
... Dorsal unpaired median (DUM) neurons, are a class of insect neurosecretory cells, which are involved in the control of several functions, such as excretion and reproduction, or the release of neurohormones. Previous studies demonstrated that they express different nicotinic acetylcholine receptor subtypes, in particular α-bungarotoxin-insensitive receptors, with nAChR1 and nAChR2 subtypes. Here, w ...
DOI:
10.1016/j.jinsphys.2022.104385

4. Crosstalk between the microbiota and insect postembryonic development

Author:
Maxime Girard; Patricia Luis; Claire Valiente Moro; Guillaume Minard
Source:
Trends in microbiology 2022 pp. -
ISSN:
0966-842X
Subject:
insect physiology,   etc   ; hormonal regulation; insect ecology; insects; metamorphosis; microorganisms; molting; pests; vector control;     Show all 9 Subjects
Abstract:
... Insect sequential development evolves from a simple molt towards complete metamorphosis. Like any multicellular host, insects interact with a complex microbiota. In this review, factors driving the microbiota dynamics were pointed out along their development. Special focus was put on tissue renewal, shift in insect ecology, and microbial interactions. Conversely, how the microbiota modulates its h ...
DOI:
10.1016/j.tim.2022.08.013

5. Pigment-dispersing factor is involved in photoperiodic control of reproduction in the brown-winged green bug, Plautia stali

Author:
Masaharu Hasebe; Toyomi Kotaki; Sakiko Shiga
Source:
Journal of insect physiology 2022 v.137 pp. 104359
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Plautia stali; RNA; circadian clocks; immunohistochemistry; neuropeptides; optic lobe; oviposition; photoperiodism;     Show all 9 Subjects
Abstract:
... Animals in temperate regions breed in the appropriate season by sensing seasonal changes through photoperiodism. Many studies suggest the involvement of a circadian clock system in the photoperiodic regulation of reproduction. Pigment-dispersing factor (PDF) is a known brain neuropeptide involved in the circadian control in various insects. Here, we investigated the localization and projection of ...
DOI:
10.1016/j.jinsphys.2022.104359

6. Juvenile hormone regulates reproductive physiology and the production of fertility cues in the swarm-founding wasp Polybia occidentalis

Author:
Amanda Prato; Rafael Carvalho da Silva; Cintia Akemi Oi; Izabel Cristina Casanova Turatti; Fabio Santos do Nascimento
Source:
Chemoecology 2022 v.32 no.4-5 pp. 171-180
ISSN:
0937-7409
Subject:
insect physiology,   etc   ; Polybia occidentalis; adults; chemical compounds; juvenile hormones; methoprene; polyethism; reproduction; wasps;     Show all 9 Subjects
Abstract:
... Juvenile hormone (JH) has important functions that regulate insect life. In adult individuals, it induces gonadotropic and behavioral changes. Manipulating JH levels helps to understand how it influences insect physiology. The effects of JH on Epiponini swarm-founding wasps have shown contrasting results, affecting reproduction, chemical compound expression, behavior, and age polyethism. In this s ...
DOI:
10.1007/s00049-022-00376-6

7. Behavioural response of Culex pipiens biotype molestus to oviposition pheromone

Author:
Anastasia Fytrou; Dimitrios P. Papachristos; Panagiotis G. Milonas; Athanasios Giatropoulos; Spyros E. Zographos; Antonios Michaelakis
Source:
Journal of insect physiology 2022 v.138 pp. 104383
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Culex pipiens; biotypes; food choices; insect behavior; males; oviposition; pheromones; sensory system;     Show all 9 Subjects
Abstract:
... Insect behaviour relies on an olfactory sensory system that controls a range of activities, from food choice and mating to oviposition, where pheromones play a central role. In Culex mosquitoes, egg-laying is accompanied by the release of mosquito oviposition pheromone (MOP), which has been shown to affect the oviposition behaviour of conspecifics. Here, we investigated for the first time the effe ...
DOI:
10.1016/j.jinsphys.2022.104383

8. The female Euscepes postfasciatus refractory period is induced by the male but length is determined by the female

Author:
Chihiro Himuro; Atsushi Honma; Yusuke Ikegawa; Norikuni Kumano
Source:
Journal of insect physiology 2022 pp. 104427
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Cylas formicarius elegantulus; Euscepes postfasciatus; body size; ejaculation; females; males; polyandry; variance;     Show all 9 Subjects
Abstract:
... Females of many animals mate multiple times during their lives (i.e., polyandry). The period between matings (mating interval) is called the refractory period (RP). In the West Indian sweet potato weevil (Euscepes postfasciatus), males use the ejaculate to induce the RP in females to prevent re-mating. By measuring the RP, a large variation of 1–49 days was observed. This variation may be due to t ...
DOI:
10.1016/j.jinsphys.2022.104427

9. Differences in olfactory sensitivity and odor detection correlate with foraging task specialization in honeybees Apis mellifera

Author:
Emilia Moreno; María José Corriale; Andrés Arenas
Source:
Journal of insect physiology 2022 v.141 pp. 104416
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Apis mellifera; brood pheromone; electroantennography; electrophysiology; labor; linalool; nectar; odors; pollen; proboscis; taste;     Show all 12 Subjects
Abstract:
... Division of labor is central to the ecological success of social insects. Among honeybees foragers, specialization for collecting nectar or pollen correlates with their sensitivity to gustatory stimuli (e.g. sugars). We hypothesize that pollen and nectar foragers also differ in their sensitivity to odors, and therefore in their likelihood to show odor-mediated responses. To assess foragerś sensiti ...
DOI:
10.1016/j.jinsphys.2022.104416

10. Thermal boldness: Volunteer exploration of extreme temperatures in fruit flies

Author:
Carlos A. Navas; Gustavo A. Agudelo-Cantero; Volker Loeschcke
Source:
Journal of insect physiology 2022 v.136 pp. 104330
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Drosophila melanogaster; cold; ectothermy; fasting; fruits; interspecific variation; natural history; temperature; thermal stability;     Show all 10 Subjects
Abstract:
... A dominant perception is that small and motile ectothermic animals must use behavior to avoid exposure to critical or sub-critical temperatures impairing physiological performance. Concomitantly, volunteer exploration of extreme environments by some individuals may promote physiological adjustments and enhance ecological opportunity. Here we introduce to the literature a Thermal Decision System (T ...
DOI:
10.1016/j.jinsphys.2021.104330

11. Life stage and the environment as effectors of transposable element activity in two bee species

Author:
Sarah Signor; George Yocum; Julia Bowsher
Source:
Journal of insect physiology 2022 v.137 pp. 104361
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Megachile rotundata; Osmia lignaria; bees; cell cycle; diapause; genome; genomics; heterochromatin; stress tolerance; temperature; transposons;     Show all 12 Subjects
Abstract:
... Diapause is a complex physiological phenomenon that allows insects to weather stressful environmental conditions. The regulation of diapause is accordingly complex, including signaling pathways that involve both small RNA and mRNA and affect the cell cycle, stress resistance, and developmental timing. Transposable elements, mobile genetic elements that replicate within the genome, are also thought ...
DOI:
10.1016/j.jinsphys.2022.104361

12. Spatial distancing by fungus-exposed Myrmica ants is prompted by sickness rather than contagiousness

Author:
Claire Detrain; Jean-Baptiste Leclerc
Source:
Journal of insect physiology 2022 v.139 pp. 104384
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Metarhizium brunneum; Myrmica rubra; death; disease outbreaks; disease transmission; entomopathogenic fungi; nests; risk; social behavior;     Show all 10 Subjects
Abstract:
... The ecological success of ants relies on their high level of sociality and cooperation between genetically related nestmates. However, these group-living insects suffer from elevated risks of disease outbreak in the whole nest. To face this sanitary challenge, social and spatial distancing of pathogen-exposed individuals from susceptible nestmates appear to be simple, although efficient, ways to l ...
DOI:
10.1016/j.jinsphys.2022.104384

13. Effect of chemical dechorionation on silkworm embryo viability

Author:
David Urbán-Duarte; Shuichiro Tomita; Hiroki Sakai; Hideki Sezutsu; José Fernando De La Torre-Sánchez; Yooichi Kainoh; Seiichi Furukawa; Keiro Uchino
Source:
Journal of insect physiology 2022 v.137 pp. 104327
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; chorion; cryopreservation; eggs; embryogenesis; instars; larvae; nylon; potassium hydroxide; silkworms; sodium hypochlorite; strength (mechanics); viability;     Show all 13 Subjects
Abstract:
... The chorion covering/protecting insect egg, which has some effective functions such as providing mechanical strength, protecting eggs from external environments, and keeping moisture adjustment, is one of the principal barriers to manipulation, cryopreservation, and study of insect embryos. Here we evaluated the silkworm embryo viability after dechorionation using chemical reagents. We have develo ...
DOI:
10.1016/j.jinsphys.2021.104327

14. Increasing adult density compromises survival following bacterial infections in Drosophila melanogaster

Author:
Paresh Nath Das; Aabeer Kumar Basu; Nagaraj Guru Prasad
Source:
Journal of insect physiology 2022 v.141 pp. 104415
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Drosophila melanogaster; disease prevention; disease transmission; immune response; immune system; mortality; population density; risk; starvation;     Show all 10 Subjects
Abstract:
... The density-dependent prophylaxis hypothesis predicts that risk of pathogen transmission increases with increase in population density, and in response to this, organisms mount a prophylactic immune response when exposed to high density. This prophylactic response is expected to help organisms improve their chances of survival when exposed to pathogens. Alternatively, organisms living at high dens ...
DOI:
10.1016/j.jinsphys.2022.104415

15. Sex peptide receipt alters macronutrient utilization but not optimal yeast-sugar ratio in Drosophila melanogaster females

Author:
Mareike Koppik; Claudia Fricke
Source:
Journal of insect physiology 2022 v.139 pp. 104382
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Drosophila melanogaster; absorption; digestive system; eggs; longevity; males; nutrient uptake; peptides; reproduction; sugars; taste; yeasts;     Show all 13 Subjects
Abstract:
... Upon mating, females alter a multitude of physiological and morphological traits to accommodate the demands of reproduction. Changes not only include reproductive tissues but also non-reproductive tissues. For example, in Drosophila melanogaster the gut increases in circumference after mating, likely to facilitate a higher absorption and provision of macronutrients to maturing eggs. A male ejacula ...
DOI:
10.1016/j.jinsphys.2022.104382

16. Behavioural and physiological regulation of protein and carbohydrates in mealworm larvae: A geometric analysis

Author:
Myung Suk Rho; Kwang Pum Lee
Source:
Journal of insect physiology 2022 v.136 pp. 104329
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Tenebrio molitor; biomass; carbohydrate content; carbohydrates; geometry; nutrient content; nutrition; physiological regulation; protein content; survival rate;     Show all 11 Subjects
Abstract:
... Protein-carbohydrate regulation in the larvae of the mealworm beetle (Tenebrio molitor L.) was analyzed using the Geometric Framework for nutrition. In this study, the ingestive and post-ingestive responses were measured from T. molitor larvae that were subjected to choice and no-choice experiments. In the choice experiment, T. moitor larvae were simultaneously presented with one of two protein-bi ...
DOI:
10.1016/j.jinsphys.2021.104329

17. Bombyx mori Flap endonuclease 1 correlates with the repair of ultraviolet-induced DNA damage

Author:
Qi Tang; Yue Liu; Yutong Liu; Feifei Zhu; Qian Yu; Huiqing Chen; Liang Chen; Shangshang Ma; Huixin Xu; Keping Chen; Guohui Li
Source:
Journal of insect physiology 2022 v.142 pp. 104424
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Bombyx mori; DNA; DNA damage; DNA repair; DNA replication; Escherichia coli; nuclear localization signals; ultraviolet radiation;     Show all 9 Subjects
Abstract:
... Solar ultraviolet radiation (UV) can cause DNA damage in microorganisms. Flap endonuclease 1 (FEN1) is a structure-specific nuclease and plays important roles in DNA replication and repair. At present, the properties and functions of FEN1 have not been characterized in detail in invertebrates such as Bombyx mori. In this study, Bombyx mori FEN1 (BmFEN1) was expressed in E. coli, and was shown to h ...
DOI:
10.1016/j.jinsphys.2022.104424

18. Regulation of membrane phospholipids during the adult life of worker honey bee

Author:
N. Martin; A.J. Hulbert; T.W. Mitchell; P.L. Else
Source:
Journal of insect physiology 2022 v.136 pp. 104310
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; females; honey; larvae; life history; lipid peroxidation; liquids; longevity; phospholipids; pollen; royal jelly; worker honey bees;     Show all 12 Subjects
Abstract:
... Two female castes that are genetically identical are found in honey bees: workers and queens. Adult female honey bees differ in their morphology and behaviors, but the most intriguing difference between the castes is the difference in their longevity. Queens live for years while workers live generally for weeks. The mechanisms that mediate this extraordinary difference in lifespan remain mostly un ...
DOI:
10.1016/j.jinsphys.2021.104310

19. Schistocerca neuropeptides – An update

Author:
Lapo Ragionieri; Rik Verdonck; Heleen Verlinden; Elisabeth Marchal; Jozef Vanden Broeck; Reinhard Predel
Source:
Journal of insect physiology 2022 v.136 pp. 104326
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Locusta migratoria; Schistocerca gregaria; data collection; genes; information sources; mass spectrometry; nervous system; neuropeptides; peptidomics; transcriptome;     Show all 11 Subjects
Abstract:
... We compiled a comprehensive list of 67 precursor genes encoding neuropeptides and neuropeptide-like peptides using the Schistocerca gregaria genome and several transcriptome datasets. 11 of these 67 precursor genes have alternative transcripts, bringing the total number of S. gregaria precursors identified in this study to 81. Based on this precursor information, we used different mass spectrometr ...
DOI:
10.1016/j.jinsphys.2021.104326

20. Lipid droplets in the pheromone glands of bombycids: Effects of larval diet on their size and pheromone titer

Author:
Takeshi Fujii; Sayo Kodama; Yukio Ishikawa; Masanobu Yamamoto; Takeshi Sakurai; Adrien Fónagy
Source:
Journal of insect physiology 2022 v.142 pp. 104440
ISSN:
0022-1910
Subject:
insect physiology,   etc   ; Bombyx mori; acetates; artificial diets; biosynthesis; body weight; conspecificity; droplets; females; larvae; leaves; lipids; mulberries; sex pheromones;     Show all 14 Subjects
Abstract:
... In addition to the blend ratio, the quantity of sex pheromone components secreted by female moths may affect the efficient attraction of conspecific males. The present study using the silkmoth Bombyx mori, which has bombykol as its pheromone component, demonstrated that pheromone titer, body weight, and lipid droplet (LD) diameter in the pheromone gland were affected by the larval diet. Although t ...
DOI:
10.1016/j.jinsphys.2022.104440