Archives of Insect Biochemistry and Physiology最新文献

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Transgenerational Effects of the Flavonoid Rutin on Population Fitness and Metabolic Dynamics in Spodoptera frugiperda 黄酮类化合物芦丁对夜蛾种群适应度和代谢动态的跨代影响。
IF 1.9 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-04-08 DOI: 10.1002/arch.70156
Xin Zhang, Yuanhong Luo, Zhujun Han, Ruonan Meng, Shubao Geng, Yunhui Zhang, Mengfang Du, Risong Na, Xiaoguang Liu, Shiheng An
{"title":"Transgenerational Effects of the Flavonoid Rutin on Population Fitness and Metabolic Dynamics in Spodoptera frugiperda","authors":"Xin Zhang,&nbsp;Yuanhong Luo,&nbsp;Zhujun Han,&nbsp;Ruonan Meng,&nbsp;Shubao Geng,&nbsp;Yunhui Zhang,&nbsp;Mengfang Du,&nbsp;Risong Na,&nbsp;Xiaoguang Liu,&nbsp;Shiheng An","doi":"10.1002/arch.70156","DOIUrl":"10.1002/arch.70156","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 <p><i>Spodoptera frugiperda</i> is a highly destructive agricultural pest that poses a significant threat to crops worldwide. While traditional insecticides offer effective control, their environmental impact and potential for fostering pest resistance raise critical concerns. Present study investigates the effect of rutin, a plant-derived flavonoid, on the ecological fitness of FAW larvae. Our bioassays demonstrate that flavonoid rutin exposure leads to a significant reduction in body weight and size in a dose-dependent manner. Furthermore, an analysis using age-stage, two-sex life tables reveal detrimental effects on survival rates and an extension of developmental duration in both F<sub>0</sub> and F<sub>1</sub> generations, with transgenerational impacts observed. Importantly, reduced food consumption correlates with altered gene expression and enzyme activities related to sugar and lipid metabolism in the midgut of F<sub>0</sub> larvae. These findings enhance our understanding of the ecological implications of phytochemicals like rutin on pest population dynamics, highlighting their potential as eco-friendly alternatives for integrated pest management strategies.</p>\u0000 </section>\u0000 </div>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147637500","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
Resveratrol Mitigates Imidacloprid-Induced Neurotoxicity, Intestinal Dysfunction and Other Stresses in Newly Emerged Bees (Apis mellifera) 白藜芦醇减轻吡虫啉引起的神经毒性、肠道功能障碍和新出现蜜蜂(蜜蜂)的其他应激。
IF 1.9 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-04-08 DOI: 10.1002/arch.70154
Jiali Hao, Wensu Han, Fen Li, Yongjun Liu, Qiang Wang, Li Zhang, Shuwei Wang, Pingli Dai, Jing Gao, Yanyan Wu
{"title":"Resveratrol Mitigates Imidacloprid-Induced Neurotoxicity, Intestinal Dysfunction and Other Stresses in Newly Emerged Bees (Apis mellifera)","authors":"Jiali Hao,&nbsp;Wensu Han,&nbsp;Fen Li,&nbsp;Yongjun Liu,&nbsp;Qiang Wang,&nbsp;Li Zhang,&nbsp;Shuwei Wang,&nbsp;Pingli Dai,&nbsp;Jing Gao,&nbsp;Yanyan Wu","doi":"10.1002/arch.70154","DOIUrl":"10.1002/arch.70154","url":null,"abstract":"<div>\u0000 \u0000 <p>Neonicotinoid imidacloprid is an environmentally contaminant that poses a high toxicity to non-target organisms, honey bees (<i>Apis mellifera</i>). Newly emerged bees are critical for colony resilience but vulnerable. This study evaluated the potential of phytochemical resveratrol in mitigating the toxicity induced by imidacloprid in newly emerged bees. To simulate a combined-stress scenario, bees were exposed to imidacloprid at a concentration (0.25 mg/L) that represents elevated field residues. Newly emerged bees were administered a diet supplemented with resveratrol. A series of assays were conducted to evaluate survival rate, physiological indices, histomorphological alterations, enzyme activities, and transcriptomic profiles. The results demonstrated that dietary supplementation with resveratrol (0.6 mg/L resveratrol and 0.25 mg/L imidacloprid) exhibited significantly higher survival rates and improved food utilization efficiency compared to bees exposed to imidacloprid alone. Resveratrol mitigated imidacloprid-induced midgut injury, aberrant sucrose enzyme activity, and restored homeostasis of genes involved in energy and nutrient metabolism (e.g. ATP synthesis, lipid, carbohydrate, and tyrosine metabolism), which were dysregulated by imidacloprid. Resveratrol alleviated oxidative stress via modulated CAT/GST activity and normalized MDA level, and upregulated genes in phase I and II detoxification pathways (e.g. <i>GST</i>, <i>UGTs</i>, <i>P450</i>). Notably, resveratrol attenuated imidacloprid-induced brain injury and alleviated neurotoxicity by preserving cholinergic integrity and modulating gene expression associated with neural signaling pathway (e.g. AChE activity and the expression of <i>nAChR</i> and <i>GABA</i> receptor genes). The present work suggested the protective effects of resveratrol on the newly emerged bees in agroecosystems contaminated with neonicotinoid and provided a promising practical strategy.</p></div>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147637576","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
RNAi Targeting Chitin synthase Genes Specifically Affects Larval Performance in Tuta absoluta 靶向几丁质合成酶基因的RNAi特异性影响绝对图塔幼虫的生产性能。
IF 1.9 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-04-08 DOI: 10.1002/arch.70153
Juan Peng, Yu-Die Zheng, Ya-Hao Rao, Lan-Lan Liao, Yi-Kuan Wu, Lin Jin, Guo-Qing Li
{"title":"RNAi Targeting Chitin synthase Genes Specifically Affects Larval Performance in Tuta absoluta","authors":"Juan Peng,&nbsp;Yu-Die Zheng,&nbsp;Ya-Hao Rao,&nbsp;Lan-Lan Liao,&nbsp;Yi-Kuan Wu,&nbsp;Lin Jin,&nbsp;Guo-Qing Li","doi":"10.1002/arch.70153","DOIUrl":"10.1002/arch.70153","url":null,"abstract":"<div>\u0000 \u0000 <p>An RNA interference (RNAi)-based management strategy has a great potential for control of the tomato leafminer <i>Tuta absoluta</i>, a microlepidoptera pest damaging a broad range of Solanaceae hosts. Nevertheless, whether RNAi efficiency of the target genes is affected by dsRNA reachability and mRNA levels remains to be established in <i>T. absoluta</i>. Two chitin synthase genes, <i>TaChSA</i> and <i>TaChSB</i>, were highly expressed in ectodermally-derived cells and midgut respectively, facilitating to test dsRNA reachability using oral delivery. According to the 2<sup>−</sup><sup>ΔCT</sup> value, <i>TaChSA</i> average level was much higher than that of <i>TaChSB</i>, allowing us to compare the mRNA levels on RNAi effectiveness. We found that ingestion of bacterially-expressed ds<i>ChSA</i> or ds<i>ChSB</i> for 24 h identically decreased the target mRNA levels in whole body, and in the head, epidermis, foregut and hindgut. Feeding ds<i>ChSA</i> affected larval growth and leaf mining, caused 19.7% larval lethality and 31.6% non-emerged adults. Moreover, RNAi against <i>TaChSA</i> damaged rectum integrity, decreased cuticle thickness, and thinned tracheae. By contrast, ingesting ds<i>ChSB</i> decreased larval weight, led to 3.8% larval lethality and 43.2% of resulting pupae failing to emerge. Taken together, ds<i>ChSA</i> and ds<i>ChSB</i> might be systemically transported, and exerted a strong RNAi efficiency irrespective of target mRNA levels. Our results indicate a possible application of bacterially-expressed ds<i>ChSA</i> and ds<i>ChSB</i> in the field to protect growing crops against <i>T. absoluta</i>.</p></div>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147637574","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 Evaluation of Mealworm (Tenebrio molitor) Larvae as an Alternative Diet for the Mass Rearing of Nesidiocoris tenuis. 粉虫(黄粉虫)幼虫作为大规模饲养黄粉虫替代饲料的比较评价。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-04-01 DOI: 10.1002/arch.70160
Juhyeok Lee, Hwal-Su Hwang, Yuyan Li, Kyeong-Yeoll Lee
{"title":"Comparative Evaluation of Mealworm (Tenebrio molitor) Larvae as an Alternative Diet for the Mass Rearing of Nesidiocoris tenuis.","authors":"Juhyeok Lee, Hwal-Su Hwang, Yuyan Li, Kyeong-Yeoll Lee","doi":"10.1002/arch.70160","DOIUrl":"10.1002/arch.70160","url":null,"abstract":"<p><p>Nesidiocoris tenuis is an important natural enemy widely used for the biological control of small pests in vegetable crop systems. Its successful implementation in commercial programs depends on reliable and cost-effective mass rearing, which typically relies on pyralid moth eggs as a food source, although this is relatively expensive. In this study, we evaluated Tenebrio molitor larvae (mealworm) as a cost-effective alternative diet for N. tenuis, comparing them with two commonly used factitious prey, Cadra cautella eggs and hydrated Artemia cysts. Nymphal survival (n = 30 per diet) was similar when reared on C. cautella (86.7%) or T. molitor (83.3%) but markedly lower with Artemia (33.3%). Developmental periods differed significantly among diets, increasing in the order C. cautella < T. molitor < Artemia. Adult longevity did not differ significantly among diets but was longer in males (25.11 ± 4.58 days) than in females (16.09 ± 1.62 days). Pre-oviposition periods and fecundity also did not differ significantly among diets; however, reproductive parameters in the Artemia treatment group were based on a reduced sample size due to low survival and should be interpreted with caution. These results indicate that T. molitor larvae provide dietary performance comparable to that of C. cautella eggs, producing similar life-history traits in N. tenuis, whereas hydrated Artemia cysts are unsuitable under the tested conditions due to significant nymphal mortality. Thus, mealworms could serve as a practical alternative diet to moth eggs for predatory bug rearing, offering a promising approach to improving cost-effectiveness in natural enemy production.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":"e70160"},"PeriodicalIF":2.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147760317","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
Role of Advanced Glycation End-Products in Altering Cellular Homeostasis and Suppressing Developmental Cycle in Drosophila melanogaster. 晚期糖基化终产物在改变黑腹果蝇细胞稳态和抑制发育周期中的作用。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-04-01 DOI: 10.1002/arch.70147
Bismita Nayak, Swastik Arya, Sarbani Ashe
{"title":"Role of Advanced Glycation End-Products in Altering Cellular Homeostasis and Suppressing Developmental Cycle in Drosophila melanogaster.","authors":"Bismita Nayak, Swastik Arya, Sarbani Ashe","doi":"10.1002/arch.70147","DOIUrl":"10.1002/arch.70147","url":null,"abstract":"<p><p>Advanced glycation end-products (AGEs) accumulate during hyperglycemia and contribute to metabolic and neurodegenerative complications. This study investigates the effects of AGEs on Drosophila melanogaster by evaluating locomotion, oxidative stress, DNA damage, and metabolic alterations. Flies subjected to an AGEs-enriched diet exhibited erratic movement patterns, indicating neuromuscular dysfunction. Increased oxidative stress markers were observed, accompanied by significant DNA damage and disruptions in cell cycle progression, indicating genotoxic stress and the induction of apoptosis. Metabolic assessment revealed disrupted glucose and lipid homeostasis, suggesting insulin resistance and metabolic reprogramming. These findings reinforce D. melanogaster as an effective model for studying AGEs-induced metabolic and neurodegenerative dysfunctions. Understanding the pathways involved in AGEs-mediated toxicity could provide insights into AGEs-related pathologies and potential therapeutic interventions.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":"e70147"},"PeriodicalIF":2.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147760547","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
Distinct Host Gene Expression Patterns Induced by Covert Deformed Wing Virus Infections in Honeybees (Apis mellifera). 蜜蜂隐性变形翼病毒感染诱导的不同宿主基因表达模式。
IF 2 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-04-01 DOI: 10.1002/arch.70158
Ali Sinan Kara, Samet Okuyan, Hatice Nur Kaynak, Serap Sakarya, Zeynep Ebrar Yavuz, Salim Aktürk, Gökhan Akdeniz, Aydin Turkec, Stuart J Lucas
{"title":"Distinct Host Gene Expression Patterns Induced by Covert Deformed Wing Virus Infections in Honeybees (Apis mellifera).","authors":"Ali Sinan Kara, Samet Okuyan, Hatice Nur Kaynak, Serap Sakarya, Zeynep Ebrar Yavuz, Salim Aktürk, Gökhan Akdeniz, Aydin Turkec, Stuart J Lucas","doi":"10.1002/arch.70158","DOIUrl":"10.1002/arch.70158","url":null,"abstract":"<p><p>Deformed Wing Virus (DWV) is a widespread insect pathogen and a major contributor to honeybee colony losses. While overt infections cause characteristic deformities and behavioral changes, covert or low-level infections remain poorly understood. Here, we hypothesize that nonsymptomatic DWV infections induce distinct host transcriptional responses compared to symptomatic cases, which may influence the ultimate outcome of infection. Transcriptomic analysis of Apis mellifera anatoliaca worker bees from an experimental apiary revealed a high DWV RNA load in a minority of colonies. Assembly of the viral genome from these asymptomatic colonies identified a novel DWV-A/DWV-B recombinant (DWV_Ord1; GenBank Accession PX394756). Comparative gene expression analysis showed that covertly infected bees upregulated several genes associated with venom production, cuticular integrity, and light perception, suggesting heightened defensive readiness. These results provide insight into early molecular responses to DWV and identify potential biomarkers of low-level infection in honeybee colonies.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":"e70158"},"PeriodicalIF":2.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13101036/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147760281","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
Monitoring the Acaricide Resistance Status and Baseline Susceptibility of Field-Collected Populations of Tetranychus urticae Koch in Korea 韩国荨麻疹叶螨田间采集种群抗螨现状及基线敏感性监测。
IF 1.9 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-03-30 DOI: 10.1002/arch.70151
Md Munir Mostafiz, Hwal-Su Hwang, Sushant Raj Sharma, Kyeong-Yeoll Lee
{"title":"Monitoring the Acaricide Resistance Status and Baseline Susceptibility of Field-Collected Populations of Tetranychus urticae Koch in Korea","authors":"Md Munir Mostafiz,&nbsp;Hwal-Su Hwang,&nbsp;Sushant Raj Sharma,&nbsp;Kyeong-Yeoll Lee","doi":"10.1002/arch.70151","DOIUrl":"10.1002/arch.70151","url":null,"abstract":"<p>The two-spotted spider mite, <i>Tetranychus urticae</i> Koch, a major pest in Korean strawberry production, is known to rapidly develop resistance to acaricides. To establish <i>T. urticae</i>'s baseline susceptibility and assess its current resistance status in Korea, we tested 15 populations collected from major strawberry-growing regions across the country in 2022 and 2023. Eight acaricides representing distinct IRAC mode-of-action (MoA) groups, including fenpropathrin, abamectin, etoxazole, chlorfenapyr, flufenoxuron, acequinocyl, pyridaben, and cyflumetofen, were evaluated using a standardized direct-spray bioassay. Lethal concentration (LC<sub>50</sub>) values were compared to those of a laboratory strain maintained without acaricide exposure for more than 10 years to determine resistance ratios (RRs). Most field populations exhibited susceptibility (RR &lt; 1) or low resistance (RR &lt; 5) to fenpropathrin, etoxazole, flufenoxuron, pyridaben, and cyflumetofen. However, several populations have developed moderate resistance (RR = 5–10) to abamectin, chlorfenapyr, and acequinocyl, with one population from Jangseong exhibiting high resistance to abamectin (RR = 31.23). The geographic pattern of resistance, with regional differences, highlights localized selection pressures. These findings provide baseline susceptibility data for Korean strawberry-infesting populations of <i>T. urticae</i> and support the design of region-specific acaricide rotation strategies for use in integrated pest management programs.</p>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13035252/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147580400","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
Cloning and Characterization of a Serpin, DiSpn27A, Expressed in the Salivary Glands of the Larvae of Drino inconspicuoides (Diptera: Tachinidae) 小飞蛾幼虫唾液腺丝氨酸蛋白disn27a的克隆及特征分析。
IF 1.9 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-03-30 DOI: 10.1002/arch.70150
Zhaolang Kuang, Kai Zhang, Sota Jinnai, Rui Wang, Seiichi Furukawa
{"title":"Cloning and Characterization of a Serpin, DiSpn27A, Expressed in the Salivary Glands of the Larvae of Drino inconspicuoides (Diptera: Tachinidae)","authors":"Zhaolang Kuang,&nbsp;Kai Zhang,&nbsp;Sota Jinnai,&nbsp;Rui Wang,&nbsp;Seiichi Furukawa","doi":"10.1002/arch.70150","DOIUrl":"10.1002/arch.70150","url":null,"abstract":"<div>\u0000 \u0000 <p>Tachinid flies must respond to the host immune system. <i>Drino inconspicuoides</i>, an endoparasitoid tachinid fly, does not require the injection of immunosuppressive factors during oviposition but ensures successful larval development within the host. In this study, a serine protease inhibitor DiSpn27A, which is secreted into the host hemolymph was identified and characterized from the salivary glands of <i>D. inconspicuoides</i> larvae at 24 h post-parasitization. Recombinant DiSpn27A (rDiSpn27A) significantly inhibited melanization when mixed with the host <i>Mythimna separata</i> larvae hemolymph in vitro. Melanization was inhibited in vivo when beads coated with rDiSpn27A were implanted into host larvae or injected with rDiSpn27A into the host body. Furthermore, rDiSpn27A interacted with the host prophenoloxidase-activating enzyme derived from <i>M. separata</i>, leading to significant suppression of melanization. DiSpn27A may function as an immune suppressor targeting the phenoloxidase activation cascade. Moreover, the RNAi-mediated knockdown of <i>DiSpn27A</i> significantly reduced the parasitism success of <i>D. inconspicuoides</i>, indicating that the suppression of host melanization is a critical factor for the successful development of <i>D. inconspicuoides</i> within its hosts. These results provide novel insights into the molecular mechanisms underlying host immune regulation in tachinid flies.</p></div>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147580344","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
The Origin of Hyperspread Cells, a Group of Circulating Hemocytes in Mythimna separata 超扩散细胞的起源,一组循环血细胞的神话分离。
IF 1.9 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-03-30 DOI: 10.1002/arch.70148
Hiroshi Matsutani, Yuki Okumura, Tomomi Sawa, Toshiharu Tanaka, Yutaka Nakamatsu
{"title":"The Origin of Hyperspread Cells, a Group of Circulating Hemocytes in Mythimna separata","authors":"Hiroshi Matsutani,&nbsp;Yuki Okumura,&nbsp;Tomomi Sawa,&nbsp;Toshiharu Tanaka,&nbsp;Yutaka Nakamatsu","doi":"10.1002/arch.70148","DOIUrl":"10.1002/arch.70148","url":null,"abstract":"<div>\u0000 \u0000 <p>In <i>Mythimna separata</i> (Ms) larvae, a hyperspread cell (HSC) has been identified as a new type of hemocyte, in addition to the existing five types of hemocytes: prohemocytes, granulocytes, plasmatocytes, spherulocytes, and oenocytoids. HSCs adhere to invading foreign substances, deposit melanin granules, and promote the adhesion of other hemocytes, thereby playing an important role in the early phase of cellular immune response, such as encapsulation and nodulation. However, the origin of HSCs remained unclear. Nodulation caused by artificial injection of a large number of yeast cells lowered HSC population density temporarily but later recovered to keep 2%–5% among total hemocytes, suggesting continuous de novo supply from specific source tissues. The origin of HSCs was examined by some possibilities as follows: (1) self-renewal, (2) the existing circulating hemocytes, and (3) hematopoietic organs. Propidium iodide staining confirmed that HSCs undergo cell death following immune reactions on foreign surfaces, ruling out self-renewal possibility as the origin. Further, circulating hemocytes were fractionated based on adhesive specificity. In vitro incubation revealed that the non-adherent fraction (prohemocytes, spherulocytes, and oenocytoids) produced HSCs, whereas the adherent fraction (granulocytes and plasmatocytes) did not. Separation using a discontinuous Percoll cushion demonstrated that the prohemocytes differentiated into HSCs. In vitro hematopoietic organs incubation released prohemocytes and other hemocytes gradually within 1–24 h; however, HSC differentiation occurred with a time lag. Moreover, hematopoietic organs extirpation did not affect the HSC population recovery after yeast-injection. These results showed that HSCs originate from prohemocytes released from hematopoietic organs in the circulation.</p></div>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147580396","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
Juvenile Hormone Acid O-Methyltransferase (JHAMT): A Key Gene in Juvenile Hormone Signaling Pathway in Insects 幼体激素酸o -甲基转移酶(JHAMT):昆虫幼体激素信号通路的关键基因。
IF 1.9 4区 农林科学
Archives of Insect Biochemistry and Physiology Pub Date : 2026-03-30 DOI: 10.1002/arch.70149
Zhang Ruiling, Zhang Zhong
{"title":"Juvenile Hormone Acid O-Methyltransferase (JHAMT): A Key Gene in Juvenile Hormone Signaling Pathway in Insects","authors":"Zhang Ruiling,&nbsp;Zhang Zhong","doi":"10.1002/arch.70149","DOIUrl":"10.1002/arch.70149","url":null,"abstract":"<div>\u0000 \u0000 <p>The sesquiterpenoid juvenile hormone (JH) plays a central role in insect life and is involved in the regulation of multiple biological functions. Precise control of JH biosynthesis is crucial for normal insect development. JH acid O-methyltransferase (JHAMT) is a key regulatory enzyme that functions in the final step of JH biosynthesis, which is highly specific to insects. Significant progress has been made in identifying and characterizing the features of the JHAMT. Functional studies have confirmed that JHAMT is involved in metamorphosis, development, reproduction, and a wide range of other biological processes, such as diapause, behavior, and vitellogenin gene expression in different insect species through regulating titers of JH. Herein, we summarized the current knowledge regarding the diverse functions of JHAMT and the interactions of JHAMT with other genes, translation factors, and signaling networks governing the growth and development of insects, and the structures of JHAMT. This wealth of knowledge will contribute to novel insights into the role of JHAMT in insects and its practical implications for pest management.</p></div>","PeriodicalId":8281,"journal":{"name":"Archives of Insect Biochemistry and Physiology","volume":"121 4","pages":""},"PeriodicalIF":1.9,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147580326","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}
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