Journal of Chemical Ecology最新文献

How Sugar Quality and Concentration Influence Oviposition Preference in Drosophila Melanogaster. 糖的质量和浓度如何影响黑腹果蝇的产卵偏好。

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-06-20 DOI: 10.1007/s10886-025-01620-3

Julio Otárola-Jiménez, Richard Spehr, Bill S Hansson, Markus Knaden

{"title":"How Sugar Quality and Concentration Influence Oviposition Preference in Drosophila Melanogaster.","authors":"Julio Otárola-Jiménez, Richard Spehr, Bill S Hansson, Markus Knaden","doi":"10.1007/s10886-025-01620-3","DOIUrl":"https://doi.org/10.1007/s10886-025-01620-3","url":null,"abstract":"Female insects possess a complex chemosensory system that enables them to identify optimal oviposition substrates for their developing offspring. Both calorie-rich and protein-rich substrates are particularly attractive for laying eggs. We hypothesize that females detect concentrations of sweet compounds and preferentially select those concentrations that enhance larval survival. To test this, we investigated how female Drosophila melanogaster evaluate substrates with varying concentrations of sugars and amino acids, and whether these preferences correlate with larval survival. Using choice assays, we found that females preferentially deposited eggs on substrates containing 0.1 mol/L sucrose, while higher concentrations (2 mol/L) were consistently avoided-a response not attributable to differences in substrate hardness or prior feeding experience during mating. In contrast, when presented with monosaccharides, females favored intermediate concentrations: 0.5 mol/L for both glucose and fructose, with a marked overall preference for fructose even when combined with an amino acid mixture. Moreover, substrates aligning with the females' oviposition choices often supported best survival of larvae. These findings indicate that female flies assess not only the concentration but might also consider the chemical nature of sweet compounds when making oviposition decisions and they underscore a critical link between maternal site selection and larval development.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 4","pages":"67"},"PeriodicalIF":2.2,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144333158","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

Marking and Deterring Oviposition on Parasitized Hosts by a Host-Marking Pheromone in an Egg Parasitoid. 寄主标记信息素在寄生蜂卵上的标记和阻止产卵。

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-06-12 DOI: 10.1007/s10886-025-01618-x

Zi-Yin Wang, Si-Yu Yin, Jian-Rong Wei, Lan-Fen Qiu, Hao-Yuan Hu, Peng-Cheng Liu

{"title":"Marking and Deterring Oviposition on Parasitized Hosts by a Host-Marking Pheromone in an Egg Parasitoid.","authors":"Zi-Yin Wang, Si-Yu Yin, Jian-Rong Wei, Lan-Fen Qiu, Hao-Yuan Hu, Peng-Cheng Liu","doi":"10.1007/s10886-025-01618-x","DOIUrl":"https://doi.org/10.1007/s10886-025-01618-x","url":null,"abstract":"Mothers typically weigh reproductive options to promote increased survival and fitness for their progeny. In the important quasigregarious parasitoids Anastatus disparis, females exhibit a host discrimination ability to select fresh host eggs and reject already parasitized host eggs for oviposition. Our results from behavioral preference experiments revealed that females lost their selective preference when the parasitized host egg was extracted by the organic solvent n-hexane and preferentially rejected fresh hosts coated with the extract of parasitized hosts. These changes in selection preferences suggest that chemical cues may be used by A. disparis females to recognize parasitized hosts. In this study, which involved gas chromatography (GC) and mass spectrometry (MS), the predominant specific peak was present in the GC profile of extracts from parasitized hosts and absent in fresh host extracts that was identified as (Z)-13-docosen-1-ol. Moreover, gas chromatography-electroantennographic detector (GC-EAD) analysis revealed that female antennae responded to (Z)-13-docosen-1-ol, and the responses were (Z)-13-docosen-1-ol concentration dependent. In addition, female behavioural responses provided further evidence that females preferred to lay eggs into a fresh, untreated host when both a fresh host and a fresh host coated with 1 µl (Z)-13-docosen-1-ol (0.025 µg/µl) were simultaneously provided. Furthermore, females preferred to lay eggs into fresh hosts with lower concentrations of (Z)-13-docosen-1-ol when two fresh hosts with different concentrations of (Z)-13-docosen-1-ol were simultaneously provided. In summary, the above results suggest that (Z)-13-docosen-1-ol is likely the important active component of the host-marking pheromone in A. disparis that functions to deter oviposition of conspecifics on parasitized hosts.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 3","pages":"66"},"PeriodicalIF":2.2,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144275003","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

Does the Difference in the Aggregation-Sex Pheromone Release Pattern Between Monochamus alternatus Hope (Coleoptera: Cerambycidae) and Monochamus saltuarius Gebler Ensure Reproductive Isolation in the Cohabitation Area? 互花田鼠（鞘翅目：天牛科）与沙腹田鼠聚集-性信息素释放模式的差异是否保证了其同居区域的生殖隔离？

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-06-06 DOI: 10.1007/s10886-025-01617-y

Min-Jung Huh, Il-Kwon Park

{"title":"Does the Difference in the Aggregation-Sex Pheromone Release Pattern Between Monochamus alternatus Hope (Coleoptera: Cerambycidae) and Monochamus saltuarius Gebler Ensure Reproductive Isolation in the Cohabitation Area?","authors":"Min-Jung Huh, Il-Kwon Park","doi":"10.1007/s10886-025-01617-y","DOIUrl":"10.1007/s10886-025-01617-y","url":null,"abstract":"In our study, we analyzed diel, daily, and weekly pheromone emission patterns to determine whether pheromone release pattern may facilate reproductive isolation between two species that use the same aggregation-sex pheromone, namely Monochamus alternatus Hope (Coleoptera: Cerambycidae) and Monochamus saltuarius Gebler, (Coleoptera: Cerambycidae) in areas where they are sympatric. The daily emission of monochamol by males of both species showed irregular but constant patterns, with M. saltuarius males releasing the pheromone earlier than their M. alternatus counterparts after cuticular sclerotization. The first emission of the pheromone occurred, on average, 10.6 and 5 days after sclerotization for M. alternatus and M. saltuarius, respectively. Weekly patterns of monochamol emission showed a peak in the 3rd week after adult eclosion for both species. Monochamus saltuarius released more pheromone than M. alternatus from 13:00 to 19:00 during three different time periods throughout the day. Both species continuously released pheromones both before and after copulation. Monochamus saltuarius displayed mating behavior by mounting and attempting copulation with a glass rod coated with the female extract of M. saltuarius, while they showed no response to the female extract of M. alternatus. In contrast, male M. alternatus adults did not distinguish conspecifics through substances present on the surface of females. These findings enhance our understanding of the strategies employed to avoid interspecific competition between these two species in cohabitation areas.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 3","pages":"65"},"PeriodicalIF":2.2,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12144045/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144234289","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

Correction to: Effect of Seasonal Variation on the Cuticular Chemical Composition of Atta laevigata (Smith 1858) (Hymenoptera: Formicidae). 修正：季节变化对小蜂表皮化学成分的影响（Smith 1858）（膜翅目：蚁科）。

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-06-05 DOI: 10.1007/s10886-025-01604-3

Jean Carlos Dos Santos Lima, Elivelto da Silva Cavalcante, Cristiano Ramos Gonçalves, Sidnei Eduardo Lima-Junior, Claudia Andrea Lima Cardoso, William Fernando Antonialli-Junior

引用次数: 0

Aphid Colony Size in Tansy is Affected by Plant Chemical Composition but not by Belowground Herbivory. 三色堇蚜虫种群大小受植物化学成分的影响，但不受地下食草性的影响。

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-05-29 DOI: 10.1007/s10886-025-01609-y

Annika Neuhaus-Harr, Lina Ojeda-Prieto, Xiaoyuan Zhang, Jörg-Peter Schnitzler, Wolfgang W Weisser, Robin Heinen

{"title":"Aphid Colony Size in Tansy is Affected by Plant Chemical Composition but not by Belowground Herbivory.","authors":"Annika Neuhaus-Harr, Lina Ojeda-Prieto, Xiaoyuan Zhang, Jörg-Peter Schnitzler, Wolfgang W Weisser, Robin Heinen","doi":"10.1007/s10886-025-01609-y","DOIUrl":"10.1007/s10886-025-01609-y","url":null,"abstract":"Plants are hosts for above- and belowground insect communities that can influence each other via above-belowground plant-physiological dynamics. To mediate interactions, plants produce secondary metabolites, including terpenoids, and mixtures can differ intraspecifically. While intraspecific variation in plant chemistry gained increased interest, the extent to which intraspecific differences in plant chemistry mediate above-belowground interactions of herbivores remains unclear. We used a full factorial design with six distinct terpenoid chemotypes, differing in their chemical diversity of tansy (Tanacetum vulgare). We exposed these to the aboveground herbivore Macrosiphoniella tanacetaria (Hemiptera: Aphididae), the belowground herbivore Agriotes sp. (Coleoptera: Elateridae), no herbivore or both herbivores, to determine if chemotypes or the chemical diversity of plant compounds affected aphid performance and if the interactions between herbivores were mediated by the chemical profile. We found that aphid colony size differed between chemotypes, with the strongest colony increase over time in a mixed chemotype, and the weakest in a β-thujone chemotype. Root herbivory had no effect on aphid colony size, regardless of the chemotype. Aphid colony size was positively correlated with terpenoid evenness, but not with terpenoid Shannon diversity, terpenoid richness, or relative terpenoid concentration. Tansy chemotypes differed in their morphological responses (final plant height and final plant dry weight) and average leaf chlorophyll content to aboveground herbivory, whereas belowground herbivory exerted minimal impacts. Overall, our results show that intraspecific variation in terpenoid profiles directly modify ecological interactions on a plant, with plant chemistry mediating aphid performance and chemotypes differing in their morphological responses to herbivory.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 3","pages":"63"},"PeriodicalIF":2.2,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12122609/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144181849","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

Integrating Chemical Ecology with Behavioural Bioassays to Understand Host Preferences in the Stink Bug Egg Parasitoids Trissolcus basalis and Trissolcus oenone (Hymenoptera: Scelionidae). 结合化学生态学和行为生物学分析研究臭虫卵寄主偏好（膜翅目：蜂科）。

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-05-28 DOI: 10.1007/s10886-025-01616-z

Thomas E Saunders, Lee-Anne M Manning, Kye Chung Park, Gregory I Holwell, Gonzalo A Avila

{"title":"Integrating Chemical Ecology with Behavioural Bioassays to Understand Host Preferences in the Stink Bug Egg Parasitoids Trissolcus basalis and Trissolcus oenone (Hymenoptera: Scelionidae).","authors":"Thomas E Saunders, Lee-Anne M Manning, Kye Chung Park, Gregory I Holwell, Gonzalo A Avila","doi":"10.1007/s10886-025-01616-z","DOIUrl":"10.1007/s10886-025-01616-z","url":null,"abstract":"Current approaches to assessing potential non-target risks associated with biological control agents are conservative, and they often rely on oviposition experiments conducted in quarantine laboratories. By their nature, such tests offer robust evidence of a parasitoid's ability to attack and develop in a host. However, they exclude many important chemical cues present in the natural environment, which play a key role in the ability of a parasitoid to search for and locate hosts. We conducted a series of experiments with Trissolcus basalis and Trissolcus oenone to better understand the chemical basis mediating differences in host-specificity between these parasitoids. First, we compared the searching behaviour of T. basalis and T. oenone in open arena arrestment bioassays contaminated with footprint compounds of Nezara viridula or Cuspicona simplex. Trissolcus basalis spent four times longer searching for N. viridula than C. simplex, while T. oenone spent four times longer searching for C. simplex than N. viridula. We then conducted competition experiments to assess factors important to determining the outcomes of extrinsic and intrinsic contests between these parasitoids when they are simultaneously exposed to C. simplex egg masses. Trissolcus oenone was the superior competitor in extrinsic and intrinsic contests. Finally, we recorded the antennal responses of T. basalis to egg extracts of N. viridula, to tentatively identify potential contact kairomones used by this parasitoid to recognise and accept hosts. We discuss our results in the context of combining behavioural and chemical ecological techniques for pre-release risk assessments of classical biological control agents.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 3","pages":"60"},"PeriodicalIF":2.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12116658/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144159335","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

The Effect of Plant Quercetin on Immune Function of Microtus Fortis. 植物槲皮素对东方田鼠免疫功能的影响。

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-05-28 DOI: 10.1007/s10886-025-01614-1

Yuting An, Dongmei Yang, Bo Ma, Dongming Liu, Kaidong Deng, Shuanglun Tao, Huijuan Cai, Yangjing Ou, Junnian Li

{"title":"The Effect of Plant Quercetin on Immune Function of Microtus Fortis.","authors":"Yuting An, Dongmei Yang, Bo Ma, Dongming Liu, Kaidong Deng, Shuanglun Tao, Huijuan Cai, Yangjing Ou, Junnian Li","doi":"10.1007/s10886-025-01614-1","DOIUrl":"10.1007/s10886-025-01614-1","url":null,"abstract":"Quercetin, a widely occurring phytogenic flavonoid, is the primary secondary metabolite in the diet of Microtus fortis. This study investigated the effects of dietary quercetin on immune organ development and cytokine levels in Microtus fortis. Microtus fortis were fed a standard diet containing 0, 1.5%, 3%, 5%, or 8% quercetin for 20 consecutive days. The results show that, compared to the control group, treatment with 5% quercetin increased the spleen and thymus indices by 14.47% and 11.67%, respectively. The proliferation of T lymphocytes, B lymphocytes and macrophages in Microtus fortis varied significantly cross groups, depending on the concentrations of quercetin in the culture medium. Additionally, IL-2 and IL-10 secretion levels increased by 8.90% and 14.99%, while TNF-α and IL-1β decreased by 11.13% and 17.40%. However, at an 8% quercetin concentration, compared with the 5% treatment, the indices of spleen and thymus decreased by 9.09% and 7.79%, respectively Similarly, IL-2 and IL-10 secretion levels decreased by 8.86% and 5.34%, while TNF-α and IL-1β secretion increased by 10.7% and 6.22%, respectively. These findings suggest that low concentrations of quercetin promote immune organ development and cytokine secretion in Microtus fortis, whereas higher concentrations exert inhibitory effects.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 3","pages":"61"},"PeriodicalIF":2.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12119769/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144173141","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

Cyclopogon guayanensis is an Unusual Orchid with a Generalistic Pollination System and Hexose Dominant Nectar. 瓜亚蓝是一种罕见的兰花，具有广泛的授粉系统和己糖优势花蜜。

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-05-28 DOI: 10.1007/s10886-025-01611-4

Thiago E C Meneguzzo, Sueli M Gomes, João A N Batista, Antonio J C Aguiar, Aline C Martins, Thomas C R Williams, Carolyn E B Proença

{"title":"Cyclopogon guayanensis is an Unusual Orchid with a Generalistic Pollination System and Hexose Dominant Nectar.","authors":"Thiago E C Meneguzzo, Sueli M Gomes, João A N Batista, Antonio J C Aguiar, Aline C Martins, Thomas C R Williams, Carolyn E B Proença","doi":"10.1007/s10886-025-01611-4","DOIUrl":"https://doi.org/10.1007/s10886-025-01611-4","url":null,"abstract":"Cyclopogon is a large Neotropical orchid genus pollinated by halictid bees that offers nectar as a reward. In a recent phylogenetic tree, Brachystele guayanensis emerged nested within Cyclopogon and was transferred to that genus. The hypothesis for this study was that C. guayanensis would show similar floral biology to Cyclopogon, although distinctive in its small, congested white flowers. Data on floral biology, pollinators, micromorphology, histochemistry, and nectar sugar composition of C. guayanensis from samples from the the Distrito Federal, Brazil were gathered. C. guayanensis is pollinated by at least four species of bees belonging to the genera Exomalopsis, Nomada, Tetrapedia (Apidae), and Dialictus (Halictidae) foraging for nectar. Nectar is produced in visually imperceptible quantities by papillae on the inner surface of the labellum; similar papillae occur in other species of Cyclopogon but C. guayanensis nectar is hexose dominant (< 10% sucrose). This type of nectar is class 4 in the traditional Baker and Baker system and our record is the second record of this nectar class in the Orchidaceae in the literature. Pollinia are dorsally adhesive and probably attach to the underside of the bee labrum, as in other Cyclopogon. The inflorescence rachis, bracteoles, and outer surfaces of the base of the sepals are covered with lipid-secreting glandular trichomes; sepals and petals have numerous raphid-rich idioblasts. This is the first record of papillae on a spurless labellum shown to produce nectar in the Orchidoideae. We suggest that hexose dominant nectars in the Orchidaceae are associated with a geophytic habit, small pale flowers, exposed nectaries, visually imperceptible quantities of nectar, and a generalistic pollination system, and coin the term 'modest pollination strategy' for this suite of characters.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 3","pages":"62"},"PeriodicalIF":2.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144172901","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

The In Vitro and In Vivo Fungal Volatile Organic Compounds Associated with Rapid 'Ōhi'a Death and the Response of Xyleborine Ambrosia Beetles to those Compounds. 体外和体内与快速‘Ōhi’a死亡相关的真菌挥发性有机化合物及木耳甲虫对这些化合物的反应

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-05-27 DOI: 10.1007/s10886-025-01606-1

Kylle Roy, Eva Brill, Dan Mikros, Kelsey Tobin, Jennifer Juzwik, Brandon Mcnellis, Douglass Jacobs, Lisa Keith, Dong H Cha, Matthew Ginzel

{"title":"The In Vitro and In Vivo Fungal Volatile Organic Compounds Associated with Rapid 'Ōhi'a Death and the Response of Xyleborine Ambrosia Beetles to those Compounds.","authors":"Kylle Roy, Eva Brill, Dan Mikros, Kelsey Tobin, Jennifer Juzwik, Brandon Mcnellis, Douglass Jacobs, Lisa Keith, Dong H Cha, Matthew Ginzel","doi":"10.1007/s10886-025-01606-1","DOIUrl":"10.1007/s10886-025-01606-1","url":null,"abstract":"Rapid 'ōhi'a death (ROD), caused by fungal pathogens Ceratocystis lukuohia and Ceratocystis huliohia, is devastating 'ōhi'a (Metrosideros polymorpha), the keystone forest tree species of Hawai'i. Ceratocystidaceae fungi produce fruity volatile organic compounds (VOCs) and sticky sexual spores, suggesting they are adapted for insect dispersal. In this study, we explored chemical signaling of the causal agents of the ROD disease complex and how those VOCs mediate ambrosia beetle (Coleoptera: Curculiondiae: Scolytidae)-plant interactions. Four species of ambrosia beetles (Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, and Xyleborus perforans) are direct vectors of the ROD pathogens in addition to spreading the fungi indirectly through contaminated frass. To further understand the extent to which semiochemicals mediate relationships between agents of the ROD pathosystem, we identified fungal VOCs both in vitro and in vivo. We then tested behavioral responses of the ROD-associated ambrosia beetles to the odor of the fungi using still-air olfactometer assays. Similar fruity and banana-like fusel alcohols and acetates were produced by C. lukuohia and C. huliohia in culture and when colonizing 'ōhi'a seedlings, which could be detected one-day post-inoculation, nine days before symptom onset. X. affinis was attracted to both C. lukuohia and C. huliohia, while X. ferrugineus positively responded to C. lukuohia and X. perforans to C. huliohia. These findings suggest a semiochemical association and potential support for the hypothesis of coevolutionary history between Ceratocystis fungi and insects.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 3","pages":"59"},"PeriodicalIF":2.2,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12116855/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144159340","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

Cotton Fleahopper Herbivory on Cotton Squares Induces Plant Volatile Emissions that Repel Conspecifics. 棉蚤在棉花上的取食诱导植物挥发性排放物排斥同种昆虫。

IF 2.2 3区环境科学与生态学

Journal of Chemical Ecology Pub Date : 2025-05-24 DOI: 10.1007/s10886-025-01612-3

Malek A Alwedyan, Anjel M Helms, John M Grunseich, Michael J Brewer

{"title":"Cotton Fleahopper Herbivory on Cotton Squares Induces Plant Volatile Emissions that Repel Conspecifics.","authors":"Malek A Alwedyan, Anjel M Helms, John M Grunseich, Michael J Brewer","doi":"10.1007/s10886-025-01612-3","DOIUrl":"https://doi.org/10.1007/s10886-025-01612-3","url":null,"abstract":"The cotton fleahopper, Pseudatomoscelis seriatus, is a piercing-sucking insect that feeds on several plant species, including squares (pre-floral buds) of upland cotton, Gossypium hirsutum, causing square abscission and yield reductions. Current control of cotton fleahoppers relies on pesticide applications, but there is growing interest in using chemical ecology to develop more sustainable methods for integrated pest management. Herbivore foraging behavior is often mediated by plant-produced volatile organic compounds (VOCs), which can serve as attractants or repellants during host-plant selection. This study aimed to evaluate the influence of cotton fleahopper herbivory on VOC emissions from cotton squares under field conditions and to investigate the behavioral responses of conspecific insects to these VOCs. Using dynamic headspace sampling, we identified seven VOCs emitted from cotton squares, with three compounds emitted in higher abundance following cotton fleahopper herbivory: (E)-β-ocimene, (E)-β-caryophyllene, and (E)-β-farnesene. The total emission of VOCs from squares with cotton fleahopper herbivory was greater than non-damaged (control) cotton squares. Using dual choice olfactometer assays, we found that adult cotton fleahoppers preferred VOCs from non-damaged squares compared to VOCs from squares with conspecific herbivory. Furthermore, cotton fleahoppers were attracted to synthetic (E)-β-ocimene but repelled by synthetic (E)-β-caryophyllene or the combination of (E)-β-ocimene and (E)-β-caryophyllene. Our findings suggest that cotton VOCs influence cotton fleahopper foraging, and that compounds identified in this study have potential for development as lures or repellants to use in integrated pest management.","PeriodicalId":15346,"journal":{"name":"Journal of Chemical Ecology","volume":"51 3","pages":"58"},"PeriodicalIF":2.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135928","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