Journal of Chemical Ecology最新文献_第2页

New Polyhydroxysteroids Derivatives from Starfish Asterias amurensis Induce Embryotoxicity in Marine Medaka.

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-03-12 DOI: 10.1007/s10886-025-01594-2

Xiaodong Li, Zhen Lu, Derui Wang, Zhi Yan, Xiuli Yin, Youhou Xu, Song Wang, Ke Li

{"title":"New Polyhydroxysteroids Derivatives from Starfish Asterias amurensis Induce Embryotoxicity in Marine Medaka.","authors":"Xiaodong Li, Zhen Lu, Derui Wang, Zhi Yan, Xiuli Yin, Youhou Xu, Song Wang, Ke Li","doi":"10.1007/s10886-025-01594-2","DOIUrl":"https://doi.org/10.1007/s10886-025-01594-2","url":null,"abstract":"In recent years, multiple population outbreaks of the Northern Pacific starfish (Asterias amurensis) have been documented off the coast of Qingdao. Starfish use chemosensation to regulate their life history and interactions with the environment, with their secondary metabolites serving as deterrents and dispersal agents against predators. While the eggs of marine fish are passive and susceptible, we hypothesized that the secondary metabolites of A. amurensis may cause embryotoxicity and exhibit a more insidious chemical function. In this study, we identified the secondary metabolites of A. amurensis collected from the Yellow Sea of China. Five new polyhydroxysteroid derivatives, (22Z)-26-O-β-D-xylopyranosyl-24-nor-5α-cholestane-22(23)-ene-3β,6α,7α,15α,26-pentaol (1), (24S)-O-β-D-xylopyranosyl-5α-cholestane-3β,6α,7α,15α,24-pentaol (2), (22E,24S)-24-O-[4-O-sulfo-β-D-xylopyranosyl]-5α-cholest-9(11)-ene-3β,6α,7α,15β,24-pentol (3), (24S)-methylene-28-O-sulfo-5α-cholestane-3β,6α,15α,24-tetraol (4), and 6α-O-sulfo-5α-cholestane-3β,5-diol (5), together with two known steroids, (24S)-24-methyl-5α-cholestane-3β,6α,15β,24,24'-pentaol (6) and (20E)-3β,6α-dihydroxy-5α-cholesta-9(11),20(22)-dien-23-one (7) were identified from the n-butanol extract. NMR and HRESI-MS were employed for structure elucidations. The embryotoxicity and teratogenicity of the isolated compounds were assessed using embryos of marine medaka (Oryzias melastigma). Compound 5 induced significantly higher mortality rates than other compounds, causing up to 70% mortality at 96 hpf, with a 96 h-LC50 of 60.51 µM.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 2","pages":"37"},"PeriodicalIF":2.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143615647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: Host Plant Odour and Sex Pheromone Are Integral To Mate Finding in Codling Moth.

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-03-12 DOI: 10.1007/s10886-025-01588-0

Anna Laura Erdei, Maria Sousa, Francisco Gonzalez, Marie Bengtsson, Peter Witzgall

引用次数: 0

Identification and Seasonal Abundance of Web- and Air-Borne Sex Pheromone Components of Western Black Widow Spiders, Latrodectus hesperus.

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-03-12 DOI: 10.1007/s10886-025-01590-6

Andreas Fischer, Alexandra J Fischer, Regine Gries, Emmanuel Hung, Kelvin Lau, Aryan Monfared, Gerhard Gries

{"title":"Identification and Seasonal Abundance of Web- and Air-Borne Sex Pheromone Components of Western Black Widow Spiders, Latrodectus hesperus.","authors":"Andreas Fischer, Alexandra J Fischer, Regine Gries, Emmanuel Hung, Kelvin Lau, Aryan Monfared, Gerhard Gries","doi":"10.1007/s10886-025-01590-6","DOIUrl":"10.1007/s10886-025-01590-6","url":null,"abstract":"Sex pheromones mediate mate location in many animal taxa. Widow spider males are attracted to sex pheromones disseminating from female webs. Upon arrival on a web, males court in response to web-borne contact pheromone components. N-3-Methylbutanoyl-O-methylpropanoyl-L-serine methyl ester (1) is the single known, weakly effective, contact pheromone component of female western black widows, Latrodectus hesperus. Moreover, the seasonal periodicity of pheromone signalling by female spiders is unknown. We tested the hypotheses that females of L. hesperus (1) deposit multiple contact pheromone components on their web that transition to mate-attractant pheromone components, and (2) increase pheromone signalling during the primary mating season. Analyses of web extract by gas and liquid chromatography-mass spectrometry (GC-MS; LC-MS) revealed N-3-methylbutanoyl-O-methylpropanoyl-L-serine (7), the corresponding acid of 1. Web extract of unmated female L. hesperus, and the synthetic blend of 1 and 7, were equally effective in eliciting courtship by males but web extract induced more sustained courtship. Tested singly, 7 prompted longer courtship behaviour by males than 1. Synthetic isobutyric acid (10), the hydrolysis product of 1 and 7, attracted male spiders in a field experiment. The abundance of 1 and 7 on female webs, with expected corresponding dissemination of 10 from webs, peaked during the summer when males are most abundant, indicating strategic sexual signalling by female spiders.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 2","pages":"36"},"PeriodicalIF":2.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11903603/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143615643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nuance in the Narrative of a Brown Poison Frog: Environmental Alkaloids and Specialized Foraging in a Presumed Toxin-Free and Diet-Generalized Species.

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-03-12 DOI: 10.1007/s10886-025-01584-4

Jeffrey L Coleman, Steven Y Wang, Paul E Marek, Colin R Morrison, Brian E Sedio, David C Cannatella

{"title":"Nuance in the Narrative of a Brown Poison Frog: Environmental Alkaloids and Specialized Foraging in a Presumed Toxin-Free and Diet-Generalized Species.","authors":"Jeffrey L Coleman, Steven Y Wang, Paul E Marek, Colin R Morrison, Brian E Sedio, David C Cannatella","doi":"10.1007/s10886-025-01584-4","DOIUrl":"https://doi.org/10.1007/s10886-025-01584-4","url":null,"abstract":"In poison frogs (Dendrobatidae), conspicuous colors have evolved repeatedly in tandem with high numbers and quantities of skin toxins (alkaloids). Here, we focus on an inconspicuously-colored species-Silverstoneia flotator-which has long been deemed toxin-free and thought to forage opportunistically on mites and ants. Both assumptions have received some empirical support, but there is also evidence that predators avoid S. flotator. In a Panamanian S. flotator population, we sampled invertebrates in frog diets and the surrounding environment (using Berlese and pitfall traps) and screened for skin, dietary, and environmental alkaloids using untargeted metabolomics. We found that while the frogs are opportunistic consumers of mites and ants, they display preferences at finer taxonomic scales (for symphypleonan springtails and Pheidole ants). We also annotated 64 skin compounds as alkaloids, 38 of which were present in the environment. One alkaloid present in the skin and environment is likely the highly potent epibatidine. While the average biosynthetic (class and superclass) diversity of alkaloids in a dorsal skin sample is higher than that of a ventral skin and environmental-but not dietary-sample, environmental samples diverge more in their alkaloids' biosynthetic diversities than do dietary or skin samples. The frogs consume a consistent set of alkaloids, forage in a variable chemical space, and possess diverse dorsal skin alkaloids. They might use finer-scale diet specialization to modulate the types, quantities, and numbers of alkaloids they ingest. We encourage further examination of inconspicuously-colored taxa to better understand the ecological importance of diet-acquired toxins and specialized diets in these organisms.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 2","pages":"38"},"PeriodicalIF":2.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143615649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Neglected Microbes in Floral Nectar: Influence of Filamentous Fungi on Nectar Scent and Parasitoid Olfactory Responses.

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-03-12 DOI: 10.1007/s10886-025-01586-2

Jay Darryl L Ermio, Ezio Peri, Salvatore Guarino, Patrizia Bella, Stefano Colazza, Bart Lievens, Michael Rostás, Antonino Cusumano

{"title":"Neglected Microbes in Floral Nectar: Influence of Filamentous Fungi on Nectar Scent and Parasitoid Olfactory Responses.","authors":"Jay Darryl L Ermio, Ezio Peri, Salvatore Guarino, Patrizia Bella, Stefano Colazza, Bart Lievens, Michael Rostás, Antonino Cusumano","doi":"10.1007/s10886-025-01586-2","DOIUrl":"10.1007/s10886-025-01586-2","url":null,"abstract":"Floral nectar is a sugar-rich resource which is ubiquitously inhabited by a wide array of microorganisms. Fermentation by nectar-inhabiting microbes can alter several nectar traits, including nectar scent, via changes in the blend of volatile organic compounds (VOCs). Although there is growing evidence on how yeasts and bacteria influence the foraging behavior of flower-visiting insects, the potential role of other microbial taxa that can colonize nectar has been largely neglected. In this study, we investigated how filamentous fungi isolated from the floral nectar of buckwheat, Fagopyrum esculentum, affect nectar scent and the olfactory responses of two co-occurring egg parasitoid species, Trissolcus basalis and Ooencyrtus telenomicida. Among nectar-feeding insects, adult parasitoids are common visitors of flowers as they depend on sugar-rich resources to satisfy their energetic and nutritional needs. In olfactometer assays, we found that nectar fermentation by two out of six fungal strains, namely Cladosporium sp. SAAF 22.2.11 and Cladosporium sp. SAAF 22.3.29, elicited a behavioral response in the egg parasitoid species when tested against non-fermented nectar. In particular, O. telenomicida displayed positive olfactory responses to both Cladosporium-fermented nectars, while T. basalis only responded positively to nectar fermented by Cladosporium sp. SAAF 22.2.11. Chemical investigations revealed significant differences in the VOC blends across all six fungus-fermented nectars, despite a partial overlap between the blends emitted by attractive versus non-attractive nectars. Altogether, these findings highlight previously unexplored interactions between flower-visiting insects and flower-associated microbes, broadening our understanding beyond the well-studied influences of yeasts and bacteria.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 2","pages":"33"},"PeriodicalIF":2.2,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11903542/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143615645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Growth-Promoting Endophytes as Immunity Booster for Brassica juncea against Insect Attack.

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-03-11 DOI: 10.1007/s10886-025-01583-5

Kavita Verma, Surbhi Agarwal, Garima Sharma, Apeksha Singhal, Richa Mullick, Vartika Mathur

{"title":"Growth-Promoting Endophytes as Immunity Booster for Brassica juncea against Insect Attack.","authors":"Kavita Verma, Surbhi Agarwal, Garima Sharma, Apeksha Singhal, Richa Mullick, Vartika Mathur","doi":"10.1007/s10886-025-01583-5","DOIUrl":"https://doi.org/10.1007/s10886-025-01583-5","url":null,"abstract":"Endophytes play a pivotal role in plant growth, metabolism, and defense mechanisms. Many of these endophytes are known to promote plant growth and/or contribute in stress alleviation by producing an array of secondary metabolites and phytohormones. In agroecosystem, plants are continuously exposed to various biotic stressors which affect their growth and development as well as quality and quantity of the crop. This study for the first time, focuses on the growth promoting bacterial potential of endophytes in enhancing plant resistance against the polyphagous pest Spodoptera litura in Brassica juncea (Indian mustard). A total of the 30 bacterial and fungal endophytes were isolated from B. juncea and ten isolates namely, Acinetobacter sp. WEL105, Acinetobacter sp. WEL1051, Acinetobacter sp. WEL1052, Acinetobacter sp. WEL1072 and Acinetobacter sp. BJWEL1, Zasmidium sp. PWEL1031, Cladosporium sp. PWEL1032, Cladosporium sp. PWEL1033, Cladosporium sp. PWEL1034 and Cladosporium sp. PWEL104 were shortlisted based on their plant growth-promoting potential. Among these, Acinetobacter sp. WEL1072 and Acinetobacter sp. BJWEL1 supplementation showed significant increase in biomass, phytohormones production (indole acetic acid and gibberellic acid), phenol and condensed tannins concentrations. Endophyte-treated plants exhibited improved biomass and increased production of defence compounds, namely phenols, condensed tannins and serine protease inhibitors. Our study thus highlights the dual potential of endophytes in enhancing plant growth and strengthening defence mechanisms, thus offering a sustainable approach to agricultural pest management.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 2","pages":"32"},"PeriodicalIF":2.2,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143605110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ABOV: A Novel System of Direct Headspace Skin Sampling to Study Human Body Odor. ABOV：研究人体气味的新型直接顶空皮肤采样系统

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-03-08 DOI: 10.1007/s10886-025-01581-7

Valentine Brémond Bostoen, Stéphane Richard Ortegón, Nicolas Barthès, Bruno Buatois, Florence Nicolè, Damien Steyer, Laurent Dormont, Camille Ferdenzi

{"title":"ABOV: A Novel System of Direct Headspace Skin Sampling to Study Human Body Odor.","authors":"Valentine Brémond Bostoen, Stéphane Richard Ortegón, Nicolas Barthès, Bruno Buatois, Florence Nicolè, Damien Steyer, Laurent Dormont, Camille Ferdenzi","doi":"10.1007/s10886-025-01581-7","DOIUrl":"10.1007/s10886-025-01581-7","url":null,"abstract":"Chemicals emitted by the human body convey information about the individuals. However, our understanding of the chemical underpinnings of human chemical communication remains limited, partly due to methodological constraints. Here, we describe a novel sampling technique, named ABOV (Analysis of Body Odor Volatiles), for analyzing the chemical composition of human skin odor. The ABOV device was designed to be easy to use and comfortable, adaptable to different contexts and body parts, and to collect in a non-contact manner airborne chemicals potentially involved in chemical communication. Twenty participants were sampled with this technique in their right and left axillae and neck, and their chemical profiles were obtained through gas chromatography-mass spectrometry (GC-MS) analysis. We robustly showed higher similarity of odor profiles between left/right sides of a given individual than between his/her odor sources (axilla vs. neck) or - even more prominently - than between different individuals. Further, exploratory analyses (PLS-DA) confirmed that the axilla and neck significantly differ in their chemical profiles, and that differences between men's and women's body odor profiles are also present although less pronounced. Several compounds were identified as being more characteristic of one source or sex than the other, and we concluded that predicting sex based on skin volatile profiles has limited reliability (at best 34% error) while prediction reliability was rather good for odor source (11% error). Overall, the novel device ABOV may be used in the future for ecological body odor sampling, even on moving subjects during behavioral experiments, to further investigate the chemical bases of human odor diversity and chemical communication.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 2","pages":"31"},"PeriodicalIF":2.2,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143582311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine Learning Predicts Non-Preferred and Preferred Vertebrate Hosts of Tsetse Flies (Glossina spp.) Based on Skin Volatile Emission Profiles.

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-03-07 DOI: 10.1007/s10886-025-01582-6

Olabimpe Y Orubuloye, David P Tchouassi, Abdullahi A Yusuf, Christian W W Pirk, Daniel K Masiga, Edward Kariuki, Baldwyn Torto

{"title":"Machine Learning Predicts Non-Preferred and Preferred Vertebrate Hosts of Tsetse Flies (Glossina spp.) Based on Skin Volatile Emission Profiles.","authors":"Olabimpe Y Orubuloye, David P Tchouassi, Abdullahi A Yusuf, Christian W W Pirk, Daniel K Masiga, Edward Kariuki, Baldwyn Torto","doi":"10.1007/s10886-025-01582-6","DOIUrl":"10.1007/s10886-025-01582-6","url":null,"abstract":"Tsetse fly vectors of African trypanosomosis preferentially feed on certain vertebrates largely determined by olfactory cues they emit. Previously, we established that three skin-derived ketones including 6-methyl-5-hepten-2-one, acetophenone and geranyl acetone accounted for avoidance of zebra by tsetse flies. Here, we tested the hypothesis that these three ketones serve as biomarkers for tsetse flies to distinguish between non-preferred- and preferred-vertebrate hosts. We used coupled gas chromatography/mass spectrometry to analyze and compare the skin volatile emissions of two non-preferred- (waterbuck and zebra) and four preferred- (buffalo, donkey, horse, warthog) vertebrate hosts in two wildlife parks in Kenya. We detected a total of 96 volatile organic compounds (VOCs) in the skin emissions composed mainly of aldehydes, ketones, alcohols, phenols and alkanes, which varied with the vertebrate host. Using random forest analysis, we found a weak correlation between the three skin-odor repellent ketones and non-preferred and preferred vertebrate hosts. However, we found that the three repellent ketones plus skin background odors may be more sensitive chemical signals for tsetse flies to discriminate vertebrate hosts. These results contribute to understanding tsetse fly vertebrate host preferences in their natural habitat across geographic scales.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 2","pages":"30"},"PeriodicalIF":2.2,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11889071/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143573050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of Nectar Composition and Nectar Yeasts on Volatile Emissions and Parasitoid Behavior.

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-03-06 DOI: 10.1007/s10886-025-01587-1

Islam S Sobhy, Tim Goelen, Felix Wäckers, Kevin J Verstrepen, Tom Wenseleers, Hans Jacquemyn, Bart Lievens

{"title":"Impact of Nectar Composition and Nectar Yeasts on Volatile Emissions and Parasitoid Behavior.","authors":"Islam S Sobhy, Tim Goelen, Felix Wäckers, Kevin J Verstrepen, Tom Wenseleers, Hans Jacquemyn, Bart Lievens","doi":"10.1007/s10886-025-01587-1","DOIUrl":"10.1007/s10886-025-01587-1","url":null,"abstract":"Nectar yeasts can significantly influence the scent of floral nectar and therefore the foraging behavior of flower-visiting insects. While these effects likely depend on nectar chemistry and yeast species, their joint impact on nectar volatile profiles and associated insect responses remain poorly understood. Here, we used four synthetic nectar types varying in sugar and amino acid concentration and two specialist nectar yeasts (Metschnikowia gruessii and Metschnikowia reukaufii) to investigate how nectar composition and yeast species affect volatile profiles and the olfactory responses of the generalist aphid parasitoid Aphidius ervi. Olfactometer assays showed that A. ervi females significantly preferred fermented nectars with high amino acid-low sugar content (HL) and low amino acid-high sugar (LH) content, regardless being fermented by M. gruessii or M. reukaufii, over non-inoculated nectars. This effect was not observed for nectars with low amino acid-low sugar (LL) and high amino acid-high sugar (HH) content. Moreover, LL nectar fermented with M. gruessii became even repellent to the parasitoids. GC-MS analysis of volatile organic compounds (VOCs) revealed that VOC profiles of fermented nectars depended significantly on nectar type (i.e., chemical composition), yeast species, and their interaction. Whereas propyl acetate, isobutyl acetate, styrene, α-guaiene and pentyl-octanoate were associated with the LH fermented nectars, ethyl acetate and E-methyl isoeugenol were mainly associated with the HL fermented nectars, suggesting possible involvement in A. ervi attraction to these nectars. In contrast, isopropyl-hexadecanoate was associated with the non-attractive or repellent LL fermented nectars. Altogether, our results indicate that nectar composition has a strong impact on nectar scent when fermented by specialist nectar yeasts and subsequently on insect foraging behavior.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 2","pages":"29"},"PeriodicalIF":2.2,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11885403/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143567316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Antennal Responses to Volatiles Related to Host Location in the Ambrosia Beetle Platypus quercivorus (Murayama).

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-02-25 DOI: 10.1007/s10886-025-01580-8

Ryuichi Okada, Yasuto Ito, Michimasa Yamasaki

{"title":"Antennal Responses to Volatiles Related to Host Location in the Ambrosia Beetle Platypus quercivorus (Murayama).","authors":"Ryuichi Okada, Yasuto Ito, Michimasa Yamasaki","doi":"10.1007/s10886-025-01580-8","DOIUrl":"https://doi.org/10.1007/s10886-025-01580-8","url":null,"abstract":"The ambrosia beetle Platypus quercivorus (Murayama) is a vector of Japanese oak wilt, a fungal pathogen that causes mass mortality of Fagaceae trees. The male locates and lands on the host tree and releases an aggregation pheromone that attracts both males and females. Thus, aggregation pheromones and host tree volatiles are important chemicals for host location. However, the antennal responses to these volatiles have not yet been examined. To obtain physiological property of P. quercivorus antennae, we electrophysiologically recorded the antennal responses of this beetle to candidate volatiles, including isoprene and other leaf volatiles (1-hexanol, 2-ethyl-1-hexanol, trans-2-hexenal, decanal, and benzaldehyde) of the host trees, as well as quercivorol (aggregation pheromone) and ethanol (widely used for trapping this insect in the field). Electroantennograms (EAGs) exhibited clear dose-dependent responses to the tested volatiles, but antennae did not respond to decanal. Sexual differences in responses were not observed for almost all volatiles. However, the EAGs suggested that the quercivorol and trans-2-hexenal sensitivity of males was higher than that of females. Ethanol elicited a large EAG amplitude in both sexes, but the sensitivity of males or females to ethanol was lower than that to the other volatiles. EAGs showed a very weak response to isoprene only in males, although isoprene is considered a possible attractant for host location. Our study will facilitate to understand the mechanism of the host location ecologically and neurophysiologically.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 2","pages":"27"},"PeriodicalIF":2.2,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143492044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0