Journal of Asia-pacific Entomology最新文献_第2页

Identification and stress-responsive expression analysis of two Hsp70 genes in Epicauta impressicornis under temperature and diapause conditions 温滞育条件下印角壁鱼Hsp70基因的鉴定及应激响应分析

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2026-01-16 DOI: 10.1016/j.aspen.2026.102521

Qing Yang , Yangyang Liu , Xuyu Ran , Ling Yang , Jiankun Long , Zhimin Chang , Xiangsheng Chen

{"title":"Identification and stress-responsive expression analysis of two Hsp70 genes in Epicauta impressicornis under temperature and diapause conditions","authors":"Qing Yang , Yangyang Liu , Xuyu Ran , Ling Yang , Jiankun Long , Zhimin Chang , Xiangsheng Chen","doi":"10.1016/j.aspen.2026.102521","DOIUrl":"10.1016/j.aspen.2026.102521","url":null,"abstract":"<div><div>The blister beetle <em>Epicauta impressicornis</em> is known for producing cantharidin, a compound that exhibits anticancer properties. Heat shock protein 70 (Hsp70) plays a vital role in helping insect adapt to stress. The aim of this study was to clone and characterise two <em>Hsp70</em> genes (<em>EiHsp70-1</em> and <em>EiHsp70-2</em>) from this beetle, and to investigate how they are expressed in response to temperature variations and diapause. The full-length cDNA sequences of <em>EiHsp70-1</em> and <em>EiHsp70-2</em> were cloned and bioinformatically analysed using available transcriptomic data (PRJNA679947). Two cytosolic <em>Hsp70</em> genes were successfully identified, each of which contained conserved signature motifs and a C-terminal EEVD sequence. Phylogenetic analysis revealed a high degree of homology with <em>Hsp70s</em> from other insects, particularly <em>E. impressicornis</em>, emphasising evolutionary conservation. The two <em>Hsp70</em> genes in <em>E. impressicornis</em> exhibited the lowest levela of expression on day 3 of the fifth instar, with the highest levels observed in thoracic tissue and during diapause. Expression was strongly up-regulated under high-temperature stress (36 °C), followed by low-temperature stress (12 °C), and was lowest at 30 °C. The expression patterns observed for <em>EiHsp70-1</em> and <em>EiHsp70-2</em> suggest their potential roles in enhancing thermal tolerance and modulating diapause-related stress responses in <em>E. impressicornis.</em> This research lays the groundword for understanding of <em>Hsp70</em> function in insect stress adaptation, particularly during overwintering under extreme temperatures.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"29 1","pages":"Article 102521"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Temporal dynamics of insecticide-resistance mutations in the diamondback moth Plutella xylostella (Linnaeus, 1758) within northern immigration regions 北方移民区小菜蛾（Plutella xylostella, Linnaeus, 1758）杀虫剂抗性突变的时间动态

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2026-02-09 DOI: 10.1016/j.aspen.2026.102532

Ya-Jun Qu , Jin-Cui Chen , Hui-Juan Li , Shuai-Yu Wang , Xue-Yan Zhang , Ary A. Hoffmann , Sen-Shan Wang , Shu-Jun Wei

{"title":"Temporal dynamics of insecticide-resistance mutations in the diamondback moth Plutella xylostella (Linnaeus, 1758) within northern immigration regions","authors":"Ya-Jun Qu , Jin-Cui Chen , Hui-Juan Li , Shuai-Yu Wang , Xue-Yan Zhang , Ary A. Hoffmann , Sen-Shan Wang , Shu-Jun Wei","doi":"10.1016/j.aspen.2026.102532","DOIUrl":"10.1016/j.aspen.2026.102532","url":null,"abstract":"<div><div>The diamondback moth (DBM), <em>Plutella xylostella</em> (Linnaeus, 1758) (Lepidoptera: Plutellidae), is a migratory pest of cruciferous crops. This species cannot survive winters in high-latitude regions, where populations primarily consist of migrants from year-round breeding areas. The movement of these moths between regions can influence insecticide resistance patterns in the recipient region by introducing resistant alleles from source populations. In this study, we investigated the adult population dynamics of DBM in two recipient locations in northern China over multiple years and analyzed variation in resistance mutations during this period. The two sampling locations showed similar DBM population dynamics, with the three highest peaks in the number of captured DBM occurring in late May, late June, and mid-August. Among the 16 loci, Q4594L showed the highest mean frequency, followed by A1060T and G324A. Although average frequencies of resistance mutations remained relatively stable across years, there were marked fluctuations in May to June and August to September, which may be related to the introduction of varied sources by migration and/or local selection. Additionally, we found that deviations from Hardy-Weinberg equilibrium were common for many of the resistance loci. Our study demonstrated variation in resistance mutation frequency in the DBM, likely caused by immigrants from various sources and local selection. These results provide novel insights into the temporal dynamics of insecticide resistance in DBM. They may help in targeting chemical control of this pest, but additional data are required to understand the impacts of long-distance migration versus local selection on resistance.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"29 1","pages":"Article 102532"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 bumblebee Niemann–Pick type C2 protein binds to sperm and is upregulated in the antennae under thermal stress 大黄蜂Niemann-Pick型C2蛋白与精子结合，并在热应激下在触角中上调

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2026-02-08 DOI: 10.1016/j.aspen.2026.102531

Bo Yeon Kim , Jin Myung Kim , Hyung Joo Yoon , Kwang Sik Lee , Byung Rae Jin

{"title":"The bumblebee Niemann–Pick type C2 protein binds to sperm and is upregulated in the antennae under thermal stress","authors":"Bo Yeon Kim , Jin Myung Kim , Hyung Joo Yoon , Kwang Sik Lee , Byung Rae Jin","doi":"10.1016/j.aspen.2026.102531","DOIUrl":"10.1016/j.aspen.2026.102531","url":null,"abstract":"<div><div>Niemann–Pick type C2 protein (NPC2) in insects is involved in various physiological processes, including lipid metabolism, immune response, chemical communication, and sperm viability. However, the expression profile of NPC2 under thermal stress remains unclear. Thus, this study aimed to investigate the binding of the bumblebee <em>Bombus terrestris</em> NPC2 (BtNPC2) protein to sperm, as well as the <em>BtNPC2</em> gene expression patterns in male <em>B. terrestris</em> tissues under thermal stress. Binding assays were performed using recombinant BtNPC2, and the specific BtNPC2 antibody demonstrated that BtNPC2 binds to the sperm surface; thus, BtNPC2 functions as a sperm-binding protein in the seminal fluids of males. Furthermore, <em>BtNPC2</em> was highly expressed in the testes and antennae of <em>B. terrestris</em> males, with a significant upregulation in expression noted in the antennae under high-temperature stress. These findings suggest that BtNPC2 may play a role in the physiological responses conducted in the antennae of bumblebees under thermal stress. Our results support the multifunctional roles of NPC2 in bumblebees.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"29 1","pages":"Article 102531"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Body size- and water homeostasis-dependent temperature stress tolerance and transcriptional changes in red fire ant workers 红火蚁工蚁体型和水分稳态依赖的温度胁迫耐受性和转录变化

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2025-12-17 DOI: 10.1016/j.aspen.2025.102518

Wei Gao , Rui Peng , Jian-min Yang , Jian-lin Lu , Hong-yun Cao , Ying-huan Li , Chun Li , Wen Fu , Jin Xu

{"title":"Body size- and water homeostasis-dependent temperature stress tolerance and transcriptional changes in red fire ant workers","authors":"Wei Gao , Rui Peng , Jian-min Yang , Jian-lin Lu , Hong-yun Cao , Ying-huan Li , Chun Li , Wen Fu , Jin Xu","doi":"10.1016/j.aspen.2025.102518","DOIUrl":"10.1016/j.aspen.2025.102518","url":null,"abstract":"<div><div>The physiological processes that link body size to environmental temperature and humidity is vital for understanding the evolutionary significance of insect adaptation strategies and mechanisms. In this study, we demonstrated that both cold and heat stresses significantly affected the survival of <em>Solenopsis invicta</em> workers, with smaller worker ants showing higher mortality than larger ones. Workers who were provided with water or sucrose solution exhibited significantly higher survival under temperature stress than controls. Further measurements showed that smaller workers usually had a higher water loss rate than larger ones, especially under desiccation conditions. Body size- and temperature-specific transcriptional changes were found, where smaller workers had more differentially expressed genes (DEGs) than larger ones, suggesting that smaller workers are likely to incur greater temperature stresses. The most prominent changes were the remarkable upregulation of Hsps related genes in heat stressed workers, whereas their changes in cold stressed workers were not significant. Both cold and heat stresses induced significantly changes in small molecule protectants, antioxidants, cuticle and excretory related DEGs and pathways. Further, a Vasopressin-regulated water reabsorption pathway was enriched in both cold and heat stressed workers. Further analysis revealed 22 water balance related DEGs, such as <em>neurophysin</em>, <em>capa receptor</em>, and <em>diuretic hormone</em>. These results indicate that water homeostasis is crucial for the survival of ants under extreme hot and cold conditions.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"29 1","pages":"Article 102518"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145789438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A C-type lectin from domestic silkworm (Bombyx mori) is involved in bacterial recognition and participates in prophenoloxidase activation 家蚕c型凝集素参与细菌识别并参与酚氧化酶原活化

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2026-01-09 DOI: 10.1016/j.aspen.2026.102522

Yan Huang , Jing Zhang , Jingyao Shi , Jie Wu , Dan Zhang , Qiaoling Zhao , Dongxu Shen

{"title":"A C-type lectin from domestic silkworm (Bombyx mori) is involved in bacterial recognition and participates in prophenoloxidase activation","authors":"Yan Huang , Jing Zhang , Jingyao Shi , Jie Wu , Dan Zhang , Qiaoling Zhao , Dongxu Shen","doi":"10.1016/j.aspen.2026.102522","DOIUrl":"10.1016/j.aspen.2026.102522","url":null,"abstract":"<div><div>C-type lectins (CTLs), which belong to the superfamily of glycan-binding proteins, are characterized by the presence of one or more carbohydrate recognition domains (CRDs). CTLs are involved in biological processes, such as immune recognition, intercellular signaling, cell adhesion, and pathogen clearance, and are widely distributed across diverse organisms, from invertebrates to vertebrates. In this study, we investigated the function of the C-type lectin gene named <em>BmIML-2</em>, in the innate immune response of the domestic silkworm, <em>Bombyx mori</em>. First, our results suggested that <em>BmIML-2</em> was highly expressed in fat body and its transcript levels were significantly up-regulated after induction by different species of bacteria. Afterwards, BmIML-2 was recombinantly expressed using a prokaryotic expression system to delve into its physiological function. Binding assays showed that recombinant BmIML-2 (rBmIML-2) exhibits binding capacity to bacteria, including <em>Escherichia coli</em>, <em>Micrococcus luteus</em>, <em>Staphylococcus aureus</em> and <em>Bacillus subtilis</em>. In addition, Enzyme linked immunosorbent assay (ELISA) demonstrated that rBmIML-2 also binds to cell wall components, such as lipopolysaccharide (LPS) and peptidoglycan (PGN), with more intensely binding affinity to the former. Furthermore, encapsulation assays <em>in vitro</em> suggested that rBmIML-2 was able to accelerate encapsulation and melanization mediated by hemocytes. Finally, we demonstrated that rBmIML-2 significantly potentiates the stimulation pathway of prophenoloxidase (PPO) in plasma. In summary, our results demonstrate that BmIML-2 can act as a pattern recognition receptor (PRR) involved in the host innate immune response.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"29 1","pages":"Article 102522"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Exploring the relationship between dung beetles and mammalian species in Indian subcontinent 探索印度次大陆的蜣螂与哺乳动物物种之间的关系

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2026-02-24 DOI: 10.1016/j.aspen.2026.102538

Sourabh Verma , Neeraj Narayan , Piyush Barnwal , Nesamani Kandasamy , Bhupendra Kumar

{"title":"Exploring the relationship between dung beetles and mammalian species in Indian subcontinent","authors":"Sourabh Verma , Neeraj Narayan , Piyush Barnwal , Nesamani Kandasamy , Bhupendra Kumar","doi":"10.1016/j.aspen.2026.102538","DOIUrl":"10.1016/j.aspen.2026.102538","url":null,"abstract":"<div><div>Dung beetles are opportunistic feeders that consume various types of mammalian dung. In our study at Valmiki Tiger Reserve, India, we collected 5,645 individual dung beetles from two sites. At Site 1 (Sal Forest with <em>Phoenix</em>), we found 2,680 beetles across 45 species, while at Site 2 (Mixed moist Deciduous Forest), we recorded 965 beetles from 30 species. The highest species richness at Site 1 was in spotted deer dung, while at Site 2, it was in human feces; sambar dung had the lowest species richness at both sites. <em>Sisyphus longipes</em> was the most abundant dung beetle species at Site 1, and <em>Onthophagus hamaticeps</em> at Site 2. Resource partitioning among dung beetle species was generally low, indicating low food specialization. However, some species, like <em>Paragymnopleurus sinuatus</em> and <em>Onthophagus crassicollis</em> at Site 1, exhibited high dung specialization, while <em>Copris sinicus</em> and <em>Sisyphus hirtus</em> showed more generalized feeding patterns. At Site 2, <em>Onthophagus hamaticeps</em> and <em>Onthophagus crassicollis</em> displayed high dung specialization, whereas <em>Caccobius unicornis</em> and <em>Onthophagus abreui</em> were more generalized. This study suggests that the dung preference of dung beetles is species specific, and varies with both the mammalian species and the feeding site.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"29 1","pages":"Article 102538"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147396879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Thermal and host-plant modulation of development, reproduction, and population growth of the spiraling whitefly, Aleurodicus dispersus (Hemiptera: Aleyrodidae) 粉虱发育、繁殖和种群增长的热调控和寄主植物调控（半翅目：粉虱科）

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2026-02-19 DOI: 10.1016/j.aspen.2026.102534

T. Boopathi , N. Anusha , J.G. Prasuna , K. Divya

{"title":"Thermal and host-plant modulation of development, reproduction, and population growth of the spiraling whitefly, Aleurodicus dispersus (Hemiptera: Aleyrodidae)","authors":"T. Boopathi , N. Anusha , J.G. Prasuna , K. Divya","doi":"10.1016/j.aspen.2026.102534","DOIUrl":"10.1016/j.aspen.2026.102534","url":null,"abstract":"<div><div>Temperature and host-plant quality are key ecological drivers influencing the physiology, reproduction, and population dynamics of poikilothermic insect pests by directly constraining metabolic rates and energy allocation typical of ectotherms. This study investigated the interactive effects of temperature (25, 30, and 35 °C) and host plants (cassava and eggplant) on the developmental duration, fecundity, longevity, and demographic parameters of the spiraling whitefly, <em>Aleurodicus dispersus</em> (Hemiptera: Aleyrodidae), under controlled conditions. Developmental rate increased with temperature within the tested range up to 30 °C, followed by a sharp decline at 35 °C, indicating thermal stress under the highest temperature treatment. Cassava consistently supported shorter developmental periods, higher fecundity, and greater intrinsic (r = 0.066 day<sup>−1</sup>) and net reproductive rates (R<sub>0</sub> = 9.94 offspring female<sup>−1</sup>) compared with eggplant. Regression analyses revealed overall negative associations between total developmental period and fecundity, and positive association between egg hatchability and adult emergence, largely reflecting temperature-driven differences among treatments. Age-stage, two-sex life table analysis indicated 30 °C as the most favorable temperature among those tested for population growth, while performance was substantially reduced at 35 °C. These findings highlight that temperature and host quality jointly shape the demographic potential of <em>A. dispersus</em>, offering valuable insights for forecasting pest outbreaks and developing climate-informed integrated pest management (IPM) strategies in tropical and subtropical cropping systems.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"29 1","pages":"Article 102534"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147396880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Removing gut commensal bacteria affects nutritional performance of diapause-destined larvae of Helicoverpa armigera 去除肠道共生菌会影响棉铃虫滞育幼虫的营养性能

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2026-01-03 DOI: 10.1016/j.aspen.2025.102517

Hoda Zamani, Azam Mikani, Mohammad Mehrabadi, Saeid Moharramipour

{"title":"Removing gut commensal bacteria affects nutritional performance of diapause-destined larvae of Helicoverpa armigera","authors":"Hoda Zamani, Azam Mikani, Mohammad Mehrabadi, Saeid Moharramipour","doi":"10.1016/j.aspen.2025.102517","DOIUrl":"10.1016/j.aspen.2025.102517","url":null,"abstract":"<div><div><em>Helicoverpa armigera</em> (Hübner) (Lepidoptera: Noctuidae) is a highly polyphagous species that undergoes pupal diapause when fifth-instar larvae are exposed to short day lengths, enabling survival under unfavorable conditions. Diapause-destined larvae accumulate nutritional reserves that sustain the pupal stage, yet the role of gut symbiotic bacteria in this process remains unclear. We eliminated gut microbiota with antibiotics and compared nutritional indices, approximate digestibility (AD), efficiency of conversion of ingested food (ECI), efficiency of conversion of digested food (ECD), relative consumption rate (RCR), and relative growth rate (RGR), in diapause-destined (D) and nondiapause (ND) larvae during the fifth and sixth instars. Diapause-destined larvae with intact gut microbiota (D<sup>+</sup>) exhibited higher ECI, ECD, and RGR but lower RCR than antibiotic-treated larvae (D<sup>−</sup>), indicating efficient nutrient conversion and energy accumulation. In contrast, D<sup>−</sup> larvae consumed more food but achieved lower growth efficiency, suggesting compensatory feeding. Similar trends were observed in nondiapause larvae, with ND<sup>+</sup> individuals displaying higher growth efficiency than ND<sup>−</sup> counterparts. Nutritional indices were generally greater in sixth instar larvae compared to fifth instar larvae, reflecting intensified reserve accumulation during the prediapause phase. Removal of gut bacteria reduced larval weight, fecal output, and conversion efficiencies, highlighting their importance in nutritional performance and biomass gain. These findings demonstrate that gut <strong>commensal</strong> bacteria play a critical role in optimizing nutrient utilization and supporting diapause preparation in <em>H. armigera</em>.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"29 1","pages":"Article 102517"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Diverse cellulolytic bacterial community in the gut of Trypoxylus dichotomus larvae: a promising source for novel cellulose-degrading microorganisms 二叉地瓜幼虫肠道内纤维素分解菌群的多样性：新型纤维素降解微生物的一个有希望的来源

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2026-01-26 DOI: 10.1016/j.aspen.2026.102525

Ao Li , Linyao Weng , Jiajing Ye, Simin Peng, Yujie Fan, Xinqi Zhang, Qingyun Wang, Shouke Zhang, Junhao Huang

{"title":"Diverse cellulolytic bacterial community in the gut of Trypoxylus dichotomus larvae: a promising source for novel cellulose-degrading microorganisms","authors":"Ao Li , Linyao Weng , Jiajing Ye, Simin Peng, Yujie Fan, Xinqi Zhang, Qingyun Wang, Shouke Zhang, Junhao Huang","doi":"10.1016/j.aspen.2026.102525","DOIUrl":"10.1016/j.aspen.2026.102525","url":null,"abstract":"<div><div>The gut microbiota of herbivorous insects is crucial for cellulose degradation. This study characterized the cellulolytic bacterial community in <em>Trypoxylus dichotomus</em> larvae, isolating 115 aerobic and facultatively anaerobic strains. 16S rDNA sequence analysis classified these isolates into 30 species, 19 genera, 13 families, and 4 phyla, with Pseudomonadota dominating (71.0%), followed by Actinobacteria (12.9%), Firmicutes (9.7%), and Bacteroidetes (6.4%). Distinct compositional differences were observed between the midgut and hindgut communities. Notably, the cellulolytic diversity in <em>T. dichotomus</em> is comparable to that of termites, indicating convergent, specialized adaptation for lignocellulose digestion. These findings establish the rhinoceros beetle gut as a significant reservoir for cellulolytic microbes and provide insights into the evolutionary adaptations of detritivorous insects and their symbiotic microbiota for efficient lignocellulose degradation.</div></div>","PeriodicalId":15094,"journal":{"name":"Journal of Asia-pacific Entomology","volume":"29 1","pages":"Article 102525"},"PeriodicalIF":1.3,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A new mayfly species of Crephlebia Chen & Zheng (Ephemeroptera: Leptophlebiidae) from mid-Cretaceous Kachin amber 中白垩世克钦琥珀中的一新种（蜉蝣目：细蝇科）

IF 1.3 3区农林科学

Journal of Asia-pacific Entomology Pub Date : 2026-03-01 Epub Date: 2025-12-11 DOI: 10.1016/j.aspen.2025.102512

Meiru Wu , Diying Huang , Chenyang Cai

引用次数: 0