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Structure-Guided Design of an Interface-Derived Inhibitor Peptide Against Spodoptera frugiperda Digestive Trypsins. 一种界面衍生的抗狐夜蛾消化性胰蛋白酶抑制剂肽的结构导向设计。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70164
José Severiche-Castro, Maria Fernanda Valerio, Maria Goreti de Almeida Oliveira
{"title":"Structure-Guided Design of an Interface-Derived Inhibitor Peptide Against Spodoptera frugiperda Digestive Trypsins.","authors":"José Severiche-Castro, Maria Fernanda Valerio, Maria Goreti de Almeida Oliveira","doi":"10.1002/arch.70164","DOIUrl":"10.1002/arch.70164","url":null,"abstract":"<p><p>Spodoptera frugiperda is a major agricultural pest whose control requires safer and more sustainable alternatives. In this study, a rational in silico strategy was applied to design a bioinsecticidal peptide targeting digestive trypsin from S. frugiperda, using a functionally relevant interfacial region of the Dioscorin-trypsin complex as a structural template. Interface analysis allowed the identification of an 11-residue oligopeptide designated as PEP-11. Trypsin-peptide docking, pharmacophore profiling, and triplicate molecular dynamics simulations were performed to characterize its interaction with the trypsin model. Docking analysis revealed that PEP-11 binds through a cooperative network of polar and hydrophobic interactions, supporting favorable molecular recognition. Molecular dynamics analyses showed that the trypsin-PEP-11 complex remained stable throughout the 100 ns simulations, with limited structural deviations and flexibility mainly restricted to terminal and loop-exposed regions. In addition, the radius of gyration and solvent-accessible surface area remained stable, while intermolecular hydrogen bonds increased over time. MM/GBSA calculations yielded negative binding free energy values in all replicas, indicating energetically favorable binding. Overall, these results support the computational prioritization of PEP-11 as an interface-derived peptide candidate for future experimental evaluation, including enzymatic inhibition, selectivity, proteolytic stability, and bioactivity assays.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70164"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13178409/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147947769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative Effects of Artificial Diets and Mulberry Leaves on Growth Performance and Gut Microbiota in Silkworms (Bombyx mori). 人工饲料和桑叶对家蚕生长性能和肠道菌群的影响。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70172
Phonphan Watthanarat, Chaiyapoom Bunchasak, Wannarat Phonphoem, Amornrat Promboon, Uraiwan Ninpetch, Samrit Kiewwong, Ratree Wongpanya
{"title":"Comparative Effects of Artificial Diets and Mulberry Leaves on Growth Performance and Gut Microbiota in Silkworms (Bombyx mori).","authors":"Phonphan Watthanarat, Chaiyapoom Bunchasak, Wannarat Phonphoem, Amornrat Promboon, Uraiwan Ninpetch, Samrit Kiewwong, Ratree Wongpanya","doi":"10.1002/arch.70172","DOIUrl":"10.1002/arch.70172","url":null,"abstract":"<p><p>The silkworm (Bombyx mori L., Thai strain Nanglai) is an important lepidopteran insect whose physiology is influenced by diet. This study compared artificial diet and mulberry leaves in larval performance, digestive enzyme activity, and gut microbiota using 16S rRNA gene sequencing. Survival was reduced in artificial diet-fed larvae at all instars. Mulberry leaf-fed larvae-maintained survival (97.33%-94.33%), whereas artificial diet-fed larvae declined from 84.33% in the first instar to 56.67% in the fifth instar, with survival 31.0% and 37.7% lower during the fourth and fifth instars, respectively. Total larval duration was longer under artificial diet feeding (34.0 vs. 27.67 days), while body weight did not differ significantly. Amylase activity was higher in mulberry leaf-fed larvae (3rd: 1,293; 5th: 2,394 U/mL) than in artificial diet-fed larvae (931 and 603 U/mL). Protease activity was lower in artificial diet-fed larvae at the third instar (779 vs. 886 U/mL) but higher at the fifth instar (462 vs. 352 U/mL). Microbial analyses revealed diet- and stage-dependent differences. At the fifth instar, alpha diversity was higher in mulberry leaf-fed larvae, with greater Chao1 richness, Shannon diversity, and Pielou's evenness. Principal coordinate analysis (PCoA) explained 91.11% of variation and showed clustering by diet and stage. Artificial diet feeding enriched Lactiplantibacillus and Saccharopolyspora, whereas mulberry leaf feeding supported greater taxonomic complexity. These findings indicate that artificial diet reshapes gut microbiota and digestive physiology, which may be associated with the observed reduction in larval survival during late development.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70172"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148026029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative Effects of Different Food Sources on Fitness and Larval Midgut Gene Expression Profiles in Spodoptera frugiperda. 不同食物来源对夜蛾适合度及幼虫中肠基因表达谱的比较影响。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70170
Huiyin Hu, Huanqian Yao, Shuyin He, Guangwei He, Veeran Sethuraman, Jingjing Zhang, Benshui Shu
{"title":"Comparative Effects of Different Food Sources on Fitness and Larval Midgut Gene Expression Profiles in Spodoptera frugiperda.","authors":"Huiyin Hu, Huanqian Yao, Shuyin He, Guangwei He, Veeran Sethuraman, Jingjing Zhang, Benshui Shu","doi":"10.1002/arch.70170","DOIUrl":"10.1002/arch.70170","url":null,"abstract":"<p><p>The fall armyworm, Spodoptera frugiperda, is a highly polyphagous pest threatening global agriculture, with over 353 host plants identified. However, its performance on many hosts remains poorly understood. This study aimed to determine whether S. frugiperda larvae can successfully develop on banana and sweet potato and what transcriptional mechanisms underlie such host adaptation. To address this question, we documented life cycle parameters and compared midgut transcriptomic profiles of S. frugiperda fed on maize, banana, sweet potato, and an artificial diet. The pest completed development on all diets, though growth and development varied. Comparative transcriptomics of larval midguts revealed 630, 3182, and 5083 differentially expressed genes (DEGs) in response to artificial diet, banana, and sweet potato, respectively, relative to maize. Notably, the substantially higher number of DEGs in banana and sweet potato groups compared to the artificial diet indicates that both plant diets impose greater transcriptional demands, likely due to host plant secondary metabolites. GO and KEGG enrichment analyses found that these DEGs were significantly enriched in metabolism terms and detoxification pathways, suggesting that transcriptional reprogramming of detoxification and digestive processes underlies host plant adaptation in S. frugiperda. These results confirm that S. frugiperda larvae can transcriptionally adapt to banana and sweet potato, suggesting that these crops may support larval development and should therefore be considered in risk assessment and monitoring efforts. Our findings provide foundational insights into the molecular mechanisms underlying host adaptability in S. frugiperda.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70170"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147970043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Functional Characterization of HvGRK2 in Metamorphic Development and 20E-Related Signaling in Heortia vitessoides. HvGRK2在葡萄籽变质发育和20e相关信号传导中的功能表征
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70167
Mingxu Sun, Hanyang Wang, Na Liu, Jiahe Liang, Tong Lin
{"title":"Functional Characterization of HvGRK2 in Metamorphic Development and 20E-Related Signaling in Heortia vitessoides.","authors":"Mingxu Sun, Hanyang Wang, Na Liu, Jiahe Liang, Tong Lin","doi":"10.1002/arch.70167","DOIUrl":"10.1002/arch.70167","url":null,"abstract":"<p><p>G protein-coupled receptor kinases (GRKs) are key regulators of G protein-coupled receptor signaling, but the role of GRK2 in insect metamorphic development remains incompletely understood. This study investigated the function of HvGRK2 in the agarwood pest Heortia vitessoides. HvGRK2 was identified and cloned from H. vitessoides. Developmental and tissue-specific expression patterns were analyzed by RT-qPCR. Transcriptional responses of HvGRK2 to exogenous 20-hydroxyecdysone (20E) injection and tebufenozide treatment were examined. RNA interference (RNAi) was used to assess the function of HvGRK2 during metamorphosis, and the expression of 20E-responsive genes and hemolymph 20E titer were subsequently measured. HvGRK2 showed stage- and tissue-specific expression, with elevated transcript levels in late larval instars and a peak at the pre-pupal stage. HvGRK2 expression was enriched in the larval gut and fat body. Exogenous 20E induced a dynamic transcriptional response of HvGRK2, and tebufenozide treatment caused dose-dependent changes in HvGRK2 expression. RNAi-mediated knockdown of HvGRK2 reduced larval body weight, increased mortality, and caused pupation failure and adult deformities. Knockdown of HvGRK2 also reduced the expression of the 20E-responsive genes E75, HR3, and HR4, whereas USP showed no significant change. In addition, hemolymph 20E titer decreased at 24 h after dsHvGRK2 injection. These findings provide a basis for understanding the role of HvGRK2 in endocrine-associated development in this species.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70167"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147947703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Towards CRISPR/Cas9 Genome Editing in Spodoptera frugiperda: A Proof-of-Concept Targeting Wing and Eye Color Genes. 向CRISPR/Cas9基因组编辑的方向发展:针对翅膀和眼睛颜色基因的概念验证。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70161
Subramanian Geerthana, Dhawane Yogi, Akshay Kumar, Ramasamy Asokan, Krishnasamy Suresh, Nalini Prabhakar, Balakrishnan Usha Rani, Kandasamy Thangaraj, Mariappan Paramasivam, Vijayakumar Kaninika, Rampura Kidinethra Chiranth, A M Shankarnarayan, Chalapathi Pradeep, Maligeppagol Manamohan
{"title":"Towards CRISPR/Cas9 Genome Editing in Spodoptera frugiperda: A Proof-of-Concept Targeting Wing and Eye Color Genes.","authors":"Subramanian Geerthana, Dhawane Yogi, Akshay Kumar, Ramasamy Asokan, Krishnasamy Suresh, Nalini Prabhakar, Balakrishnan Usha Rani, Kandasamy Thangaraj, Mariappan Paramasivam, Vijayakumar Kaninika, Rampura Kidinethra Chiranth, A M Shankarnarayan, Chalapathi Pradeep, Maligeppagol Manamohan","doi":"10.1002/arch.70161","DOIUrl":"10.1002/arch.70161","url":null,"abstract":"<p><p>Fall armyworm (Spodoptera frugiperda), a globally significant destructive lepidopteran invasive pest, has recently invaded Africa and Asia, threatening food security. Conventional method of management, including chemical insecticides, are often ineffective due to various reasons compelling the need to explore alternative strategies. In this regard, CRISPR/Cas9 based genome editing has emerged as a powerful tool for functional genomics in insects, enabling to introduce site-specific mutations for various purposes. In this study, we applied multiplex CRISPR/Cas9 ribonucleoprotein (RNP) injections to disrupt two key genes in S. frugiperda: the spalt (Sfspalt), which regulates wing patterning, and tryptophan 2,3-dioxygenase (Sfto/vermillion) gene, involved in eye pigmentation. Microinjection of sgRNA/Cas9 ribonucleoprotein complex into freshly laid eggs resulted in distinct phenotypic alterations, including altered wing pigmentation and modified eyespot patterns, as well as golden-yellow eye color mutants. Genotyping and ICE analysis confirmed the presence of frameshift mutations in the target loci, supporting the phenotypic changes. Notably, while mutations were detected, only a single individual was confirmed to carry mutations in both genes simultaneously. These results demonstrate the technical feasibility of multiplex CRISPR/Cas9 editing in S. frugiperda, but also reveal a low frequency of confirmed events under the present experimental conditions. Therefore, this study is considered a proof of concept establishing a preliminary workflow in multiplex platform. The findings provide foundational insights for further optimization of genome editing strategies targeting sex related genes in this agriculturally important pest.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70161"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147810047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Decoupling of Axonal Targeting and Behavioral Function in the Drosophila melanogaster Sex Peptide Receptor. 果蝇性肽受体轴突靶向与行为功能的解耦。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70168
Xinyue Zhou, Hongyu Miao, Tianmu Zhang, Woo Jae Kim
{"title":"Decoupling of Axonal Targeting and Behavioral Function in the Drosophila melanogaster Sex Peptide Receptor.","authors":"Xinyue Zhou, Hongyu Miao, Tianmu Zhang, Woo Jae Kim","doi":"10.1002/arch.70168","DOIUrl":"10.1002/arch.70168","url":null,"abstract":"<p><p>The Sex Peptide Receptor (SPR), a G-protein coupled receptor (GPCR), is essential for mediating post-mating behavioral responses in Drosophila melanogaster females. While SPR is known to be localized to axons, the molecular mechanisms driving this process and its functional necessity for behavior have been unclear. Here, we demonstrate that the N-terminal domain of SPR is necessary for its axonal targeting in both Drosophila ventral nerve cord neurons and mouse hippocampal neurons. We mapped this targeting function to a critical region (amino acids 41-80) containing a conserved tyrosine-based sorting motif (YGNE). Structural modeling predicts a potential interaction between this region and the m3A subunit of the AP-3 adaptor complex, indicating a potential mechanism for AP-3 mediated trafficking. We report a striking functional decoupling between receptor localization and behavioral output. The N-terminal domain, and therefore axonal localization, was found to be dispensable for SPR's primary role in regulating female remating behavior. Conversely, the C-terminal domain, while less critical for axonal targeting than the N-terminus, proved essential for this behavioral function. These findings provide a new mechanistic insight into SPR sorting and reveal that signaling from non-axonal compartments is sufficient to control this key reproductive behavior.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70168"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147947755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated Transcriptomic and Enzymatic Analysis Reveals the Detoxification Response of Asian Spongy Gypsy Moth Lymantria dispar asiatica to Chlorantraniliprole. 亚洲舞毒蛾Lymantria dispar asiatica对氯虫酰胺解毒反应的转录组学和酶学综合分析。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70163
Sindho Wagan, Jiawen Zhang, Muneer Ahmed Khoso, Yasmeen Batool, Lili Sun, Chuanwang Cao
{"title":"Integrated Transcriptomic and Enzymatic Analysis Reveals the Detoxification Response of Asian Spongy Gypsy Moth Lymantria dispar asiatica to Chlorantraniliprole.","authors":"Sindho Wagan, Jiawen Zhang, Muneer Ahmed Khoso, Yasmeen Batool, Lili Sun, Chuanwang Cao","doi":"10.1002/arch.70163","DOIUrl":"10.1002/arch.70163","url":null,"abstract":"<p><p>The Asian spongy moth, Lymantria dispar asiatica, is a polyphagous defoliator capable of damaging a wide range of tree species and is recognized as a major forest pest worldwide. Chlorantraniliprole, a widely used anthranilic diamide insecticide, is highly effective against lepidopteran pests; however, the molecular detoxification mechanisms employed by L. dispar asiatica in response to this compound remain poorly understood. In this study we investigated the integrated transcriptomic and enzymatic detoxification response of third-instar L. dispar asiatica larvae following exposure to response to acute LC₅₀ exposure concentrations of chlorantraniliprole. Toxicity was first determined using a leaf-dip bioassay. Transcriptomic analysis identified 167769 differentially expressed genes (DEGs), which were significantly enriched in metabolic and detoxification-related pathways, including drug metabolism, glutathione metabolism, and cytochrome P450 pathways. Quantitative real-time PCR (q-RT-PCR) further validated the upregulation of several key detoxification genes, including CYP6AN15v1, CYP6AE51, GSTe1, and UGT2. Interestingly, transcriptome-wide analysis also revealed a broad downregulation of numerous genes within the cytochrome P450 and UDP-glycosyltransferase (UGT) families. Consistent with these transcriptional patterns, enzyme activity assays demonstrated significant inhibition of cytochrome P450, glutathione S-transferase (GST), and UDP-glycosyltransferase (UGT) enzyme activities, whereas carboxylesterase (CarE) activity was markedly induced. Collectively, these findings demonstrated that chlorantraniliprole elicits a multifaceted detoxification response in L. dispar asiatica characterized by selective transcriptional activation of specific detoxification genes alongside the broad suppression of major detoxification enzymes. The inhibition of CYP450, GST and, UGT activities, appears to represent a key mechanistic basis underlying the high efficacy of chlorantraniliprole against this pest.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70163"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147947693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of Two UDP-Glycosyltransferase Genes in Grapholita molesta and Their Detoxification Roles Against Three Insecticides. 两种糖基转移酶基因的鉴定及其对三种杀虫剂的解毒作用
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70171
Ming-Gao Li, Shuang Zhan, Wenzhe Wang, Cenyue Li, Lijun Zhang, Ruiyan Ma, Lingling Gao, Yanqiong Guo
{"title":"Characterization of Two UDP-Glycosyltransferase Genes in Grapholita molesta and Their Detoxification Roles Against Three Insecticides.","authors":"Ming-Gao Li, Shuang Zhan, Wenzhe Wang, Cenyue Li, Lijun Zhang, Ruiyan Ma, Lingling Gao, Yanqiong Guo","doi":"10.1002/arch.70171","DOIUrl":"10.1002/arch.70171","url":null,"abstract":"<p><p>Grapholita molesta is a major pest of economically important fruit crops worldwide. UDP-glycosyltransferases (UGTs), as phaseⅡdetoxification enzymes, play a crucial role in insect detoxification metabolism. However, the molecular characteristics and insecticide detoxification functions of G. molesta UGTs remain unknown. In this study, UGT40BA1 and UGT46A28-two UGT genes-were cloned, characterized, and subjected to phylogenetic analysis. Results showed UGT40BA1 is closely related to Spodoptera exigua's homolog and UGT46A28 to Bombyx mori's. While UGT40BA1 was highly expressed in the second-instar and UGT46A28 in the first and third, both genes showed high expression in the adult midgut. Exposure to imidacloprid and lambda-cyhalothrin significantly altered the expression of both UGT genes, whereas avermectin treatment did not induce significant transcriptional changes. Furthermore, inhibition of UGT activity by sulfinpyrazone significantly enhanced the susceptibility of G. molesta to the three insecticides. These results suggest that UGT40BA1 and UGT46A28 may participate in the detoxification of these insecticides in G. molesta.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70171"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148026064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative Insights Into Detoxification, Regulation, and Evolution of Neonicotinoid Resistance in Three Planthoppers. 三种飞虱的解毒、调控和新烟碱抗性进化的比较研究。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70165
Minyoung Choi, Murtaza Khan, Juil Kim
{"title":"Comparative Insights Into Detoxification, Regulation, and Evolution of Neonicotinoid Resistance in Three Planthoppers.","authors":"Minyoung Choi, Murtaza Khan, Juil Kim","doi":"10.1002/arch.70165","DOIUrl":"10.1002/arch.70165","url":null,"abstract":"<p><p>Planthoppers, the brown planthopper (BPH, Nilaparvata lugens), white-backed planthopper (WBPH, Sogatella furcifera), and small BPH (SBPH, Laodelphax striatellus) are among the most destructive rice pests in Asia. Neonicotinoid insecticides, particularly imidacloprid, have been widely deployed for their control, but intensive use has driven rapid evolution of high-level resistance across multiple species and regions. Long-term monitoring reveals pronounced spatial and temporal variation in resistance levels, shaped by local selection pressure and seasonal migration dynamics. Resistance is predominantly mediated by metabolic detoxification, with cytochrome P450 monooxygenases (CYPs), especially CYP6ER1 in BPH and its orthologs in WBPH and SBPH playing a central role, as confirmed by RNAi, heterologous expression, and genome-editing studies. Carboxylesterases, glutathione S-transferases, UDP-glycosyltransferases, and ATP-binding cassette transporters contribute additional detoxification capacity, whereas target-site mutations in nicotinic acetylcholine receptors remain comparatively minor in field populations. Transcriptomic analyses reveal that regulatory networks, including CncC/MafK, HNF4, and MAPK signaling-govern CYP overexpression, with comparative evidence highlighting convergent evolution of detoxification pathways across species. This review synthesizes current knowledge on resistance monitoring, molecular mechanisms, and evolutionary dynamics of neonicotinoid resistance in rice planthoppers, with emphasis on the BPH-imidacloprid system and comparative insights from WBPH and SBPH. Implications for integrated resistance management and sustainable pest control, including RNAi-based approaches, are also discussed.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70165"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13178405/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147947682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The SNARE Protein RpUSE1 Is Essential for Female Reproduction and Organelle Homeostasis in Riptortus pedestris. 陷阱蛋白RpUSE1在行走Riptortus的雌性生殖和细胞器稳态中至关重要。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-05-01 DOI: 10.1002/arch.70166
Yan-Yan Yang, Ying Tian, Qing-Kai Feng, Chuan-Xi Zhang, Jia-Bao Lu
{"title":"The SNARE Protein RpUSE1 Is Essential for Female Reproduction and Organelle Homeostasis in Riptortus pedestris.","authors":"Yan-Yan Yang, Ying Tian, Qing-Kai Feng, Chuan-Xi Zhang, Jia-Bao Lu","doi":"10.1002/arch.70166","DOIUrl":"10.1002/arch.70166","url":null,"abstract":"<p><p>The SNARE protein USE1 plays a critical role in retrograde membrane traffic from the Golgi to the endoplasmic reticulum (ER) in yeast, yet its function in insects remains unclear. This study investigates the role of the RpUSE1 gene in the agricultural pest Riptortus pedestris. Domain analysis confirmed that RpUSE1 is a 248-amino-acid SNARE protein containing a C-terminal transmembrane domain and a SNARE motif featuring a conserved aspartate residue at the central \"0\" layer. It is ubiquitously expressed in R. pedestris, with the highest transcript levels in the female reproductive system. RNAi-mediated knockdown of RpUSE1 severely impaired nymph survival and development. Moreover, silencing RpUSE1 in adult females completely disrupted egg development and caused structural disorder of the lateral oviducts, including ER disorganization. Notably, there was a significant accumulation of lipid droplets within the lateral oviduct lumen. In contrast, silencing RpUSE1 in male adults did not affect fertility. These findings demonstrate that RpUSE1 is essential for nymphal survival and female reproductive success, highlighting its crucial role in maintaining organelle structure and intracellular transport.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"122 1","pages":"e70166"},"PeriodicalIF":2.0,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147947727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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