Excitation of the abdominal ganglion affects the electrophysiological activity of indirect flight muscles of the honeybee Apis mellifera
Electromyograms reveal that the neural activity change of the abdominal ganglion affects the physiological activity of the indirect flight muscles in honeybees. The response characteristics of indirect flight muscles after the excitation of the abdominal ganglion are profiled. AbstractOur understanding of the nervous tissues that affect the wing flapping of insects mainly focuses on the brain, but wing flapping is a rhythmic movement related to the central pattern generator in the ventral nerve cord. To verify whether the neural activity of the abdominal ganglion of the honeybee (Apis mellifera) affects the flapping-wing f...
Source: Insect Science - November 1, 2023 Category: Biology Authors: Haojia Ding,
Shaoze Yan Tags: ORIGINAL ARTICLE Source Type: research
Implications of mosquito metabolism on vector competence
AbstractMosquito-borne diseases (MBDs) annually kill nearly half a million people. Due to the lack of effective vaccines and drugs on most MBDs, disease prevention relies primarily on controlling mosquitoes. Despite huge efforts having been put into mosquito control, eco-friendly and sustainable mosquito-control strategies are still lacking and urgently demanded. Most mosquito-transmitted pathogens have lost the capacity ofde novo nutrition biosynthesis, and rely on their vertebrate and invertebrate hosts for sustenance during the long-term obligate parasitism process. Therefore, a better understanding of the metabolic int...
Source: Insect Science - November 1, 2023 Category: Biology Authors: Li Gao,
Wenxu Yang,
Jingwen Wang Tags: REVIEW Source Type: research
Complex interactions among insect viruses ‐insect vector‐arboviruses
AbstractInsects are the host or vector of diverse viruses including those that infect vertebrates, plants, and fungi. Insect viruses reside inside their insect hosts and are vertically transmitted from parent to offspring. The insect virus –host relationship is intricate, as these viruses can impact various aspects of insect biology, such as development, reproduction, sex ratios, and immunity. Arthropod-borne viruses (arboviruses) that cause substantial global health or agricultural problems can also be vertically transmitted to ins ect vector progeny. Multiple infections with insect viruses and arboviruses are common in...
Source: Insect Science - October 26, 2023 Category: Biology Authors: Hui Wang,
Qian Chen,
Taiyun Wei Tags: REVIEW Source Type: research
Resistance risk assessment of six pyrethroids and acephate toward the resistant adult tarnished plant bug, Lygus lineolaris
This study evaluated the resistance levels of late fall field-collected tarnished plant bugs (TPB) to six common pyrethroids and acephate. Interestingly, higher resistance levels were observed in October for all six pyrethroids compared to July. Additionally, these field-resistant TPBs displayed significantly elevated detoxification enzyme activities. AbstractDue to rapidly developed resistance, pest management relies less on pyrethroids to control economically damaging infestations of the tarnished plant bug (TPB),Lygus lineolaris (Palisot de Beauvois) in cotton fields of Mississippi. Yet, pyrethroid resistance remains pr...
Source: Insect Science - October 18, 2023 Category: Biology Authors: Yuzhe Du,
Shane Scheibener,
Yucheng Zhu,
Maribel Portilla,
Mingling Zhang Tags: ORIGINAL ARTICLE Source Type: research
Spirotetramat reduces fitness of the spotted ‐wing Drosophila, Drosophila suzukii
Oral take up of spirotetramat byDrosophila suzukii females inhibits the activity of acetyl-CoA decarboxylase (ACC) that is needed for fecundity and desiccation resitance. AbstractWith climate change, the spotted-wing Drosophila (SWD,Drosophila suzukii) invades a great number of fruit production regions worldwide. A plethora of insecticides are being applied for management of this pest. As expected, SWD develops resistance against some potent insecticides or is rather insensitive to some others. Therefore, there is an urgent need to identify and characterize alternative insecticides to control SWD populations. Here, we have...
Source: Insect Science - October 18, 2023 Category: Biology Authors: Jing Yang,
Justin Flaven ‐Pouchon,
Yiwen Wang,
Bernard Moussian Tags: ORIGINAL ARTICLE Source Type: research
Matrix metalloproteinase 2 degrades collagen I to regulate ovarian development by association with an insulin ‐like peptide
The ovary generally undergoes tissue remodeling during the larval to pupal transition, with membrane degenerating and ovarioles growing to ensure the maturity of the eggs in insects. In our study, we found that BmILP induces the phosphorylation of AKT at the S1 stage to regulate MMP2 expressing highly in the S2 stage, and it would have negative feedback for AKT dephosphorylation. At the PP stage, MMP2 degrades collagen I to promote cell proliferation, cell migration, and ECM remodeling, which results in ovarian capsule degradation. On the other hand, BmILP remained highly expressed to promote the development of ovarian and...
Source: Insect Science - October 17, 2023 Category: Biology Authors: Yi Wei,
Xiao ‐Lin Zhou,
Peng Chen,
Tai‐Hang Liu,
Cheng Lu,
Min‐Hui Pan Tags: ORIGINAL ARTICLE Source Type: research
Risk assessment, fitness cost, cross ‐resistance, and mechanism of tetraniliprole resistance in the rice stem borer, Chilo suppressalis
In this study, the tetraniliprole-selection (Tet-R) strain was obtained through 10 continuous generations of selection with tetraniliprole 30% lethal concentration (LC30). The realized heritability (h2) of the Tet-R strain was 0.387, indicating that resistance of RSB to tetraniliprole developed rapidly under the continuous selection of tetraniliprole. The Tet-R strain had a high fitness cost (relative fitness = 0.53). We established the susceptibility baseline of RSB to tetraniliprole (lethal concentration at LC50 = 0.727 mg/L) and investigated the resistance level of 6 field populations to tetraniliprole. All tested...
Source: Insect Science - October 17, 2023 Category: Biology Authors: Hao Sun,
Shuai Wang,
Chong Liu,
Wen ‐Kai Hu,
Jin‐Wei Liu,
Ling‐Jun Zheng,
Meng‐Yue Gao,
Fang‐Rui Guo,
Song‐Tao Qiao,
Jun‐Li Liu,
Bo Sun,
Cong‐Fen Gao,
Shun‐Fan Wu Tags: ORIGINAL ARTICLE Source Type: research
Lactobacillus melliventris promotes hive productivity and immune functionality in Bombus terrestris performance in the greenhouse
Here, we evaluated how supplementation withLactobacillus melliventris isolated from bumblebee gut affected the colony development ofBombus terrestris in laboratory and field conditions. In the laboratory,L. melliventris colonized robustly and persisted long-term in bumblebees, changing the gut microbiota composition. The Wnt and mTOR pathways of the gut were downregulated and the tyrosine metabolism of the brain and fat body were upregulated, leading to a significantly higher in immunity and tyrosine metabolism. The field experiment in the greenhouse revealed that supplementation ofL. melliventris led to a 2.5-fold increas...
Source: Insect Science - October 14, 2023 Category: Biology Authors: Qianhui Yu,
Yan Liu,
Shanshan Liu,
Shaogang Li,
Yifan Zhai,
Qingchao Zhang,
Li Zheng,
Hao Zheng,
Yifan Zhai,
Xiaofei Wang Tags: ORIGINAL ARTICLE Source Type: research
Object use in insects
Insects have been demonstrated to exhibit rich object-use behaviors. The intelligence, pre-existing manipulation behavior (e.g., ant use materials in nest building as pre-existing behavior to cover inaccessible surfaces or drop particles behavior or food bury), and anatomical structure affect the innovation of object use. In addition, learning and imitation (e.g., bumblebees learn to pull string) may be the best forms to spread object-use behavior in the population. AbstractInsects are the most diverse group of organisms in the animal kingdom, and some species exhibit complex social behaviors. Although research on insect o...
Source: Insect Science - October 13, 2023 Category: Biology Authors: Chao Wen,
Cai Wang,
Xiaoli Guo,
Hongyu Li,
Haijun Xiao,
Junbao Wen,
Shikui Dong Tags: REVIEW Source Type: research
Cover Caption
AbstractThe pleasing lacewings (Dilaridae) are a distinctive family of the holometabolous order Neuroptera, mainly characterized by the sexually dimorphic antennae and long tubular ovipositor, which are widely distributed in most zoogeographic regions except for Australia. The female egg-laying behaviors, and the anatomy of the larval head are reported in detail for understanding their phylogeny and larval adaptation to subterranean habitat (see pages 1449-1467). Photo provided by Yuezheng Tu. (Source: Insect Science)
Source: Insect Science - October 13, 2023 Category: Biology Tags: CONTENTS Source Type: research
Issue Information
(Source: Insect Science)
Source: Insect Science - October 13, 2023 Category: Biology Tags: ISSUE INFORMATION Source Type: research
Fatty acids derived from oviposition systems guide female black soldier flies (Hermetia illucens) toward egg deposition sites
While the polyphagous larvae of the black soldier fly (Hermetia illucens) are gaining interest as an alternative protein source for food and feed, little research has been done on the behavior of the adults. We identified three fatty acids and one fatty acid methyl ester derived from old oviposition sites and aimed to elucidate their effect on preference behavior and oviposition site selection using Y-tubing olfactometry and prepared oviposition sites, respectively. Exposure to tetradecanoic acid attracted gravid females significantly and stimulated oviposition most strongly. In addition, females kept in mixed-sex populati...
Source: Insect Science - October 12, 2023 Category: Biology Authors: Patrick Kl über,
Emna Arous,
Jeanny Jerschow,
Marco Fraatz,
Daniel Bakonyi,
Martin Rühl,
Holger Zorn Tags: ORIGINAL ARTICLE Source Type: research
Cytoplasmic FKBPs are involved in molting and metamorphosis through regulating the nuclear localization of EcR
RNAi of 2 cytoplasmicFKBPs, specificallyFKBP45 andFKBP12b, prevented the nuclear localization ofEcR, and ultimately affected molting and metamorphosis in insects. AbstractMolting and metamorphosis are important physiological processes in insects that are tightly controlled by ecdysone receptor (EcR) through the 20-hydroxyecdysone (20E) signaling pathway. EcR is a steroid nuclear receptor (SR). Several FK506-binding proteins (FKBPs) have been identified from the mammal SR complex, and are thought to be involved in the subcellular trafficking of SR. However, their roles in insects are poorly understood. To explore whether FK...
Source: Insect Science - October 12, 2023 Category: Biology Authors: Xian Zhang,
Qiao ‐Ran Wang,
Qian Wu,
Jun Gu,
Li‐Hua Huang Tags: ORIGINAL ARTICLE Source Type: research
The neglect of nonnative orthopterans as potential invaders: A call for awareness
The spread of nonnative orthopterans. AbstractDespite the potential ecological and economic impacts of invasive species, there is a dearth of data on the presence, impacts, and management implications of potentially invasive Orthoptera species. This lack of research and inconsistent data, including risk screenings and impact assessments, is especially evident in Europe. Consequently, assessing the status, distribution, and potential threats of nonnative Orthoptera in Europe remains challenging, impeding the development of effective management strategies. To address this gap, we call for increased efforts to collect and cur...
Source: Insect Science - October 12, 2023 Category: Biology Authors: Anna K. Kulessa,
Paride Balzani,
Ismael Soto,
Anton ín Kouba,
David Renault,
Ali Serhan Tarkan,
Phillip J. Haubrock Tags: REVIEW Source Type: research
Bacterial plant pathogens affect the locomotor behavior of the insect vector: a case study of Citrus volkameriana –Triozae erytreae–Candidatus Liberibacter asiaticus system
This study aimed to characterize theCLas effects prior and after its acquisition onT. erytreae psyllid. The probing behavior of uninfectedT. erytrea is little affected by the infected status of the plant.T. erytrea individuals previously reared onCLas-infected plants exhibited (1) a modification of their locomotive behavior and (2) a lower mass, water rate, and lipid rate. AbstractPlant pathogens can alter the behavior of their insect vectors as well as their survival and reproduction. The African psyllid,Trioza erytreae, is one of the vectors of Huanglongbing, a citrus disease caused mainly by “Candidatus Liberibacter a...
Source: Insect Science - October 12, 2023 Category: Biology Authors: Arnaud Ameline,
Alain Karkach,
Thomas Denoirjean,
Martial Grondin,
Florencia Molinari,
Patrick Turpin,
H élène Delatte,
Bernard Reynaud Tags: ORIGINAL ARTICLE Source Type: research
