Pest Management Science最新文献

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Large-scale exchange of RNA between parasitic plant Orobanche cumana and its host Helianthus annuus. 寄主向日葵(Helianthus annuus)与寄生植物香蕉(orobche cumana)间RNA的大规模交换。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-19 DOI: 10.1002/ps.70846
Chong Yang,Qionglin Chen,Jian Wang,Shouli Feng,Xiaoyuan Tao,Shengchun Xu
{"title":"Large-scale exchange of RNA between parasitic plant Orobanche cumana and its host Helianthus annuus.","authors":"Chong Yang,Qionglin Chen,Jian Wang,Shouli Feng,Xiaoyuan Tao,Shengchun Xu","doi":"10.1002/ps.70846","DOIUrl":"https://doi.org/10.1002/ps.70846","url":null,"abstract":"BACKGROUNDThe growth and yield of Helianthus annuus (sunflower) are severely constrained by the root-parasitic plant Orobanche cumana in China. Translocated RNAs from stocks via heterografting can act as mobile signals to modulate physiological processes in scions, including defense and stress responses. Because the interaction between parasitic plants and their host plants can be seen as a form of 'perfect graft', it is necessary to investigate the trans-species movement of RNAs between O. cumana and its host sunflower, to understand their interaction in search for new strategies to control this parasitic weed.RESULTSUsing RNA sequencing and functional analyses, we demonstrated dynamic, stage-specific RNA transfer during key parasitic stages (haustorium penetration and vascular connection). A significant proportion of reads (≤5.4% from O. cumana to sunflower and 1.8% in reverse) were identified as mobile, with enriched functional categories such as translation, protein folding and translational elongation. Gene silencing of OcPar1-a highly abundant mobile gene derived from O. cumana-in sunflower led to a reduction in infection, whereas overexpression of this gene enhanced the parasitism of O. cumana on sunflower, demonstrating the critical role of mobile transcripts during the invasion of O. cumana into sunflower. Additionally, mobile lncRNAs were identified, and the function of the O. cumana-originated lncRNAs in sunflower was predicted, suggesting cross-species regulatory potential.CONCLUSIONThese findings reveal that trans-species RNA mobility is not merely passive, but a regulated process with functional significance, shaping both parasitic adaptation and host defense mechanisms. This study provides foundational insights into RNA-mediated communication between parasitic and host plants, offering potential strategies for controlling parasitic weeds. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"11 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147719428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Identification of potential RNAi targets and analysis of dsRNA stability and intracellular transport in the underground pest Holotrichia parallela. 地下害虫平行Holotrichia parallela潜在RNAi靶点鉴定及dsRNA稳定性和细胞内转运分析。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-19 DOI: 10.1002/ps.70832
Yubo Yang,Jian Wei,Qian Wang,Zhanhai Kang,Zhilong Niu,Yingnan Gao,Wei Guo,Dan Zhao
{"title":"Identification of potential RNAi targets and analysis of dsRNA stability and intracellular transport in the underground pest Holotrichia parallela.","authors":"Yubo Yang,Jian Wei,Qian Wang,Zhanhai Kang,Zhilong Niu,Yingnan Gao,Wei Guo,Dan Zhao","doi":"10.1002/ps.70832","DOIUrl":"https://doi.org/10.1002/ps.70832","url":null,"abstract":"BACKGROUNDHolotrichia parallela is a significant underground pest causing severe crop damage. RNA interference (RNAi) represents a specific and environmentally sustainable strategy for pest control. This study aimed to identify lethal RNAi targets and clarify key factors affecting RNAi efficiency in H. parallela.RESULTSAmong 24 candidate genes, six genes (HpTUB2, HpCHT2, HpVAA, HpCP, HpGST, and HpAPN1) were identified with high RNAi efficacy, inducing 77.78-87.5% larval mortality and strong growth inhibition. Midgut nucleases were identified as the primary barrier to oral RNAi, while low RNase activity in the hemolymph contributed to enhanced RNAi susceptibility. Double-stranded RNA (dsRNA) mainly accumulated in the fat body, midgut, and epidermis. Furthermore, silencing core RNAi pathway genes disrupted the insect RNAi machinery and rendered subsequent dsRNA treatments ineffective.CONCLUSIONThis study identifies a reliable set of RNAi target genes for H. parallela control. The findings provide essential theoretical support for optimizing RNAi-based strategies, particularly with respect to dsRNA stability, tissue-specific delivery, and cellular uptake mechanisms. This work advances the development of precise and sustainable pest management tools. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"9 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147719434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Efficient control of Tribulium castaneum using zeolitic imidazolate framework-8 nanocarrier-mediated delivery of dsRNA targeting Paramyosin. 沸石咪唑酸框架-8纳米载体介导的靶向副肌球蛋白的dsRNA的有效控制。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-19 DOI: 10.1002/ps.70839
Linlin Jiang,Xiaopeng Lu,Yanping Jiang,Chaojie Jin,Lanying Wang,Zhiqing Ma,Hua Wu
{"title":"Efficient control of Tribulium castaneum using zeolitic imidazolate framework-8 nanocarrier-mediated delivery of dsRNA targeting Paramyosin.","authors":"Linlin Jiang,Xiaopeng Lu,Yanping Jiang,Chaojie Jin,Lanying Wang,Zhiqing Ma,Hua Wu","doi":"10.1002/ps.70839","DOIUrl":"https://doi.org/10.1002/ps.70839","url":null,"abstract":"BACKGROUNDTribolium castaneum is a major pest that affects stored grains globally. RNA insecticides present a promising strategy for the management of insect pests; however, they encounter challenges in target gene discovery, cost and efficiency. The paramyosin (PM) gene has shown potential as a target for RNAi-based insecticides. This study aims to explore the potential of ZIF-8@dsTcPM complexes as an RNA insecticide, assessing their effectiveness in targeting the TcPM gene while ensuring stability and protection of dsRNA.RESULTSThis study discovered that the PM gene exists throughoutthe life cycle of T. castaneum and is predominantly located in adult muscle tissues. The dsTcPM notably downregulated TcPM gene expression, causing high mortalities in larvae and adults. The PM gene was highly conserved across diverse insect orders but absent in vertebrates, suggesting that the RNA insecticides targeting this gene may offer broad-spectrum control of insect pests with mammalian safety. The L4440-HT115 produced functional dsTcPM efficiently (2.15 μg mL-1) via fermentation under optimized conditions (0.8 mm IPTG at 37 °C for 6 h). ZIF-8 can spontaneously form stable complexes with dsTcPM with an average particle size of 125.64 nm to effectively protect dsTcPM from nuclease and hemolymph degradation. ZIF-8@dsTcPM not only exhibited safety for HEK293T cells, but also demonstrated significant toxicity to adult T. castaneum via the feeding method, with a mortality of 62.22% on the ninth day post-treatment.CONCLUSIONThis work demonstrates that the ZIF-8@dsTcPM offers a promising option for the effective prevention and sustainable control of T. castaneum. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"23 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147719395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 novel cytochrome P450 gene, CYP12A2, regulates reproduction of Mythimna separata by modulating 20E biosynthesis. 一种新的细胞色素P450基因CYP12A2通过调节20E生物合成来调节Mythimna separata的繁殖。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-18 DOI: 10.1002/ps.70853
Lingling Li,Wenmeng Li,Jing Liao,Peiying Li,Changgeng Dai,Hongbo Li
{"title":"A novel cytochrome P450 gene, CYP12A2, regulates reproduction of Mythimna separata by modulating 20E biosynthesis.","authors":"Lingling Li,Wenmeng Li,Jing Liao,Peiying Li,Changgeng Dai,Hongbo Li","doi":"10.1002/ps.70853","DOIUrl":"https://doi.org/10.1002/ps.70853","url":null,"abstract":"BACKGROUNDSeveral P450 genes in the 20-hydroxyecdysone (20E) signaling pathway are known to critically regulate reproductive development in insects. However, the contribution of other P450 family members to insect reproduction remains poorly characterized.RESULTSHere, we identified a novel P450 gene, CYP12A2, from the highly polyphagous pest Mythimna separata. Quantitative real-time polymerase chain reaction analysis revealed that CYP12A2 was upregulated during sexual maturation and predominantly enriched in the ovaries of 3-day-old female adults. RNA interference (RNAi)-mediated knockdown of CYP12A2 severely disrupted ovarian development and downregulated the expression of vitellogenesis-related genes (Vg and VgR) as well as eggshell formation-related genes (CB-Ld329 and FCP3C), ultimately leading to reduced fecundity. Moreover, silencing of CYP12A2 significantly decreased 20E titers and suppressed the expression of key 20E biosynthetic genes (CYP307A1, CYP306A1, CYP302A1 and CYP315A1). Importantly, exogenous 20E injection substantially rescued the defects in ovarian development and restored the expression of reproduction-related genes that were impaired by CYP12A2 depletion.CONCLUSIONThese findings indicate that CYP12A2 regulates reproduction of M. separata by modulating 20E biosynthesis. Our study uncovers a novel reproductive role for CYP12A2 and highlights its potential as a target for RNAi-based pest management strategies. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"4 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147708461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Cereal rye (Secale cereale) and canola (Brassica napus) cover crops reduce dry bean (Phaseolus vulgaris) herbivore damage. 谷类黑麦(Secale cereale)和油菜(Brassica napus)覆盖作物减少干豆(Phaseolus vulgaris)食草动物的伤害。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-18 DOI: 10.1002/ps.70821
Zoe Economos,Elias H Bloom,Uriel D Menalled,Sarah J Pethybridge,Matthew R Ryan,Clare L Casteel
{"title":"Cereal rye (Secale cereale) and canola (Brassica napus) cover crops reduce dry bean (Phaseolus vulgaris) herbivore damage.","authors":"Zoe Economos,Elias H Bloom,Uriel D Menalled,Sarah J Pethybridge,Matthew R Ryan,Clare L Casteel","doi":"10.1002/ps.70821","DOIUrl":"https://doi.org/10.1002/ps.70821","url":null,"abstract":"BACKGROUNDCover crops can support soil health and increase habitats for beneficial insects in diverse cropping systems. The aim of this study was to evaluate the impact of cover crop-conditioned soil on plant defense responses and insect pest damage using dry bean (Phaseolus vulgaris L.) as a model.RESULTSIn a 2-year, multi-location field experiment comparing four cover crop treatments and a tilled control, we found that dry beans no-till planted into mechanically terminated cereal rye (Secale cereale L.) and canola (Brassica napus L.) experienced less insect damage than controls. In the laboratory, microbiome extracts from canola-enriched field soil increased dry bean jasmonic acid levels and reduced cowpea aphid (Aphis craccivora Koch) survival compared with other soil microbiome extracts. No differences in defense hormones were detected for dry bean grown in cereal rye soil microbiome extracts, however aphid survival was reduced on these plants compared to the controls.CONCLUSIONSCereal rye and canola cover crops reduced insect damage in dry bean fields. Soil microbiomes associated with canola enhanced defense-related compounds in dry bean, suggesting a potential mechanism for pest suppression in the field. However, the impacts of canola varied across microbiome sources, highlighting the need for additional studies. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"5 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147708457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Demographic, genetic, and physiological responses of montane water voles to trapping-based control across different landscape contexts. 不同景观环境下山地水田鼠对诱捕控制的人口统计学、遗传和生理反应。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-18 DOI: 10.1002/ps.70814
Aitor Somoano,Alejandro Núñez-Carbajal,Jacint Ventura,Marcos Miñarro
{"title":"Demographic, genetic, and physiological responses of montane water voles to trapping-based control across different landscape contexts.","authors":"Aitor Somoano,Alejandro Núñez-Carbajal,Jacint Ventura,Marcos Miñarro","doi":"10.1002/ps.70814","DOIUrl":"https://doi.org/10.1002/ps.70814","url":null,"abstract":"BACKGROUNDThe montane water vole (Arvicola scherman) is a major pest in grasslands and perennial crops, where densities may exceed 1000 individuals/ha and control campaigns often show variable effectiveness. While control methods have been widely assessed, little is known about the responses of surviving individuals or the influence of landscape structure on post-control recovery. This study evaluated temporal changes in population structure, body condition, and gene flow under a trapping-based control program across a heterogeneous landscape.RESULTSThree populations from the northern Iberian Peninsula (Oles, Priesca, and Fresnadiello), representing agrarian, mosaic, and forested landscapes respectively, showed contrasting demographic, physiological, and genetic responses linked to landscape context. Oles and Priesca exhibited high abundance in 2011 followed by sharp declines in 2012; Priesca partially recovered by 2013, whereas Oles continued to decline. Fresnadiello increased from low abundance to a 2012 peak and then stabilized. Age structure shifted toward adult dominance over time, while sex ratios remained stable. Body condition showed site- and sex-specific trends. Genetic responses paralleled demography: Oles suffered marked losses of allelic richness and heterozygosity with limited immigration; Priesca gained novel alleles through increased migrant input; and Fresnadiello maintained high genetic diversity, with indications of incipient inbreeding.CONCLUSIONPopulation responses to control depend strongly on landscape structure and connectivity rather than demographic crashes alone. Effective management of A. scherman requires integrating removal intensity with dispersal context and adaptive monitoring to limit recolonization and ensure long-term control. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"66 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147702051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Phytotoxic activity of grammicin produced by the fungus Xylaria grammica (Ascomycota) recovered from infected lesions on Handroanthus serratifolius (Bignoniaceae) leaves. 麦豆木耳菌(Xylaria grammica,子囊菌属)产生的grammicin的植物毒活性从大叶参科(bignonaceae)叶片的感染损伤中恢复。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-18 DOI: 10.1002/ps.70803
Debora Luiza Costa Barreto,Charles L Cantrell,Amber Callahan Reichley,Joanna Bajsa-Hirschel,Prabin Tamang,Zhiqiang Pan,T Casey Barickman,Pankaj Pandey,Amar G Chittiboyina,Shabana Iqrar Khan,Stephen Oscar Duke,Franck E Dayan,Catherine Traxler,Camila Rodrigues de Carvalho,Sonia Claudia do Nascimento de Queiroz,Luiz Henrique Rosa
{"title":"Phytotoxic activity of grammicin produced by the fungus Xylaria grammica (Ascomycota) recovered from infected lesions on Handroanthus serratifolius (Bignoniaceae) leaves.","authors":"Debora Luiza Costa Barreto,Charles L Cantrell,Amber Callahan Reichley,Joanna Bajsa-Hirschel,Prabin Tamang,Zhiqiang Pan,T Casey Barickman,Pankaj Pandey,Amar G Chittiboyina,Shabana Iqrar Khan,Stephen Oscar Duke,Franck E Dayan,Catherine Traxler,Camila Rodrigues de Carvalho,Sonia Claudia do Nascimento de Queiroz,Luiz Henrique Rosa","doi":"10.1002/ps.70803","DOIUrl":"https://doi.org/10.1002/ps.70803","url":null,"abstract":"BACKGROUNDWe report the bioassay-guided isolation and identification of phytotoxic compounds from an extract of the fungus Xylaria grammica (Ascomycota), isolated from leaf lesions of seedlings of Handroanthus serratifolius (Bignoniaceae), from the Atlantic Rain Forest in Brazil. From the fungal crude extract, grammicin (1) and xylaric acid methyl ester (2) were purified and identified using one- and two-dimensional nuclear magnetic resonance and high-resolution mass spectrometry analysis.RESULTSGrammicin exhibited activity against Lactuca sativa (lettuce) and Agrostis stolonifera (bentgrass) at 1 mg mL-1, resulting in 100% inhibition of seed germination. Compound 2 had no activity against L. sativa but showed moderate activity against A. stolonifera, inhibiting seed germination at 1 mg mL-1. Against Lemna paucicostata (duckweed), grammicin inhibited growth by 50% (IC50) at 87.7 μM, while compound 2 had no activity. Neither compound had antifungal activity against the plant pathogen Colletotrichum fragariae. Grammicin is structurally similar to the natural compound patulin, which is reported to be phytotoxic by inhibition of photosystem II (PSII). Molecular modeling of the interaction of grammicin with the D1 protein of PSII predicts it to be a strong PSII inhibitor; however, in vivo testing indicated that it is a very weak PSII inhibitor. Patulin was highly cytotoxic to mammalian cells whereas grammicin was not cytotoxic.CONCLUSIONSThis is the first report unveiling the phytotoxicity of grammicin, which could serve as a scaffold for developing more potent herbicides with improved physicochemical properties and without any potential for cytotoxicity. © 2026 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"7 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147708456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Cirsium arvense management with electrical weed control and clopyralid. 用电除草和氯吡唑啉管理鸢尾草。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-18 DOI: 10.1002/ps.70736
Luisa Carolina Baccin,Marcelo L Moretti
{"title":"Cirsium arvense management with electrical weed control and clopyralid.","authors":"Luisa Carolina Baccin,Marcelo L Moretti","doi":"10.1002/ps.70736","DOIUrl":"https://doi.org/10.1002/ps.70736","url":null,"abstract":"BACKGROUNDCanada thistle [Cirsium arvense (L.) Scop.] is a perennial weed that is difficult to control due to its extensive root system and prolific seed production. Although herbicides such as clopyralid provide effective control, they are not suitable for all production systems. Electrical weed control (EWC) is a nonchemical method that applies high voltage to plant tissues, causing irreversible cellular damage through loss of cellular integrity. This study evaluated the efficacy of EWC using a commercial tractor-mounted unit (EH30; Zasso), clopyralid, and integrated EWC-clopyralid programs for managing C. arvense, including single and sequential applications of each approach.RESULTSIn Corvallis, EWC provided 39% and 53% control with one and two applications, respectively, whereas in Canby, control increased from 38% with a single application to 94% with two applications. Clopyralid provided 96% control with a single application and 95% with two applications in Corvallis, compared with 43% and 78% in Canby. Two EWC applications reduced shoot biomass by 95% in Canby. Combined treatments were highly effective: EWC followed by clopyralid achieved 89% control in Corvallis and 87% in Canby, and the reverse sequence achieved 98% control.CONCLUSIONEWC provided transient control of C. arvense, and integration with clopyralid improved control, supporting its role in integrated weed management. Because C. arvense is a perennial species, multiyear studies are needed to determine the long-term effectiveness of EWC. © 2026 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"69 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147708462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Deorphanization of the odorant receptor CsepOR1 identifies a biphasic behavioral modulator in Coccinella septempunctata (Coleoptera: Coccinellidae). 气味受体CsepOR1的去孤儿化鉴定了七星瓢虫(鞘翅目:瓢虫科)的双相行为调节剂。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-18 DOI: 10.1002/ps.70842
Qi Liang,Mengqing Tang,Jingxuan Wu,Yufeng Qi,Jingyue Chen,Jiali Yang,Yanfen Ma,Hao Guo
{"title":"Deorphanization of the odorant receptor CsepOR1 identifies a biphasic behavioral modulator in Coccinella septempunctata (Coleoptera: Coccinellidae).","authors":"Qi Liang,Mengqing Tang,Jingxuan Wu,Yufeng Qi,Jingyue Chen,Jiali Yang,Yanfen Ma,Hao Guo","doi":"10.1002/ps.70842","DOIUrl":"https://doi.org/10.1002/ps.70842","url":null,"abstract":"BACKGROUNDThe seven-spot ladybird beetle, Coccinella septempunctata, is a key predatory natural enemy widely deployed for biological control of agricultural pests. Olfaction is crucial for prey location and searching, yet the molecular mechanisms of chemoreception in this species remain largely unknown.RESULTSAntennal transcriptome analysis identified a repertoire of 24 odorant receptors (ORs), of which CsepOR1 exhibited the highest expression level in the antennae. Quantitative real-time polymerase chain reaction (qPCR) analysis confirmed that CsepOR1 is predominantly expressed in female antennae. Heterologous expression of CsepOR1 in Drosophila T1 neurons, combined with single sensillum recordings, revealed narrow tuning to butyl salicylate among 362 tested odorants. Y-tube olfactometer assays demonstrated that butyl salicylate acts as a strong attractant for female C. septempunctata at low doses (10 μg) but becomes repellent at higher doses (100 μg). Predation assays further showed that 10 μg of butyl salicylate significantly enhances predation efficiency in female ladybirds, whereas higher doses inhibit it.CONCLUSIONThese results represent the first deorphanization of a key odorant receptor in C. septempunctata and identify butyl salicylate as a dose-dependent behavioral modulator with strong potential for applications in conservation biological control. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"53 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147702283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Mechanisms of rebound suppression of oil-in-water emulsion droplet on superhydrophobic surface. 超疏水表面水包油乳化液抑制回弹机理研究。
IF 4.1 1区 农林科学
Pest Management Science Pub Date : 2026-04-17 DOI: 10.1002/ps.70834
Chen Gong,Mingzhi Yan,Aichen Wang,Can Kang
{"title":"Mechanisms of rebound suppression of oil-in-water emulsion droplet on superhydrophobic surface.","authors":"Chen Gong,Mingzhi Yan,Aichen Wang,Can Kang","doi":"10.1002/ps.70834","DOIUrl":"https://doi.org/10.1002/ps.70834","url":null,"abstract":"BACKGROUNDMitigating the rebounding of pesticide droplets on superhydrophobic leaf is of great significance for improving pesticide utilization. The purpose of this study is to elucidate the physical mechanism by which oil-in-water emulsions suppress rebounding, analyze the effects of emulsion concentration, impact velocity and droplet diameter on the impact process, identify the critical Weber number at which rebound ceases, and provide theoretical guidance for spray application.RESULTSFour distinct outcomes were observed for droplet impact on superhydrophobic surfaces: complete rebound, partial rebound, transition, and adhesion. With increasing emulsion concentration, impact velocity, and droplet diameter, droplets were more likely to adhere to the superhydrophobic surface. When adhesion occurred, splashing was typically observed during the spreading stage, accompanied by satellite droplets separation during the retraction stage. When the emulsion concentration is less than or equal to 0.6%, the droplet impact outcomes can be categorized by the Weber number; the critical Weber number for droplets adhering to the superhydrophobic surface is 279.CONCLUSIONThe suppression of droplet rebounding is governed by a wetting-induced energy dissipation mechanism. Surface wetting increases the contact area between the droplet and the surface, which enhances frictional resistance and energy dissipation. The maximum spreading velocity and coefficient of droplets increase with impact velocity and droplet diameter; accordingly, greater shear gradients and wetted areas lead to higher viscous dissipation and frictional energy loss. Furthermore, larger droplet diameter and higher impact velocity reduce the droplet's resistance to deformation and breakup, resulting in satellite droplets separation and therefore greater energy loss. © 2026 Society of Chemical Industry.","PeriodicalId":218,"journal":{"name":"Pest Management Science","volume":"97 1","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147702053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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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