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Herbivory‑induced volatile‑mediated interactions between the diploid cotton Gossypium herbaceum L.and the leafhopper Amrasca biguttula biguttula(Ishida):implications for sustainable pest management 认领 引用
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作者 TONDUR Naveen UDIKERI Shashikant S. JAYANTHI Kamala 《Journal of Cotton Research》 CAS CSCD 2026年第2期263-274,共12页
Background The cotton leafhopper,Amrasca biguttula biguttula(Ishida)(Homoptera:Cicadellidae),is a major pest causing significant quantitative and qualitative losses in cotton production.Its increasing resistance to co... Background The cotton leafhopper,Amrasca biguttula biguttula(Ishida)(Homoptera:Cicadellidae),is a major pest causing significant quantitative and qualitative losses in cotton production.Its increasing resistance to commonly used insecticides underscores the urgent need for alternative,non-pesticidal management strategies.Traditional and less-improved cultivated cotton species are known to retain inherent defense mechanisms,including the production of herbivore-induced plant volatiles(HIPVs)that can repel herbivores or attract their natural enemies.In this context,the present study aimed to identify specific volatile organic compounds(VOCs)emitted by an Asiatic cotton species(Gossypium herbaceum)that elicit behavioral responses in adult female leafhoppers,with the goal of exploring their potential in eco-friendly pest management.Results An attractive response was observed when adult females of A.biguttula biguttula were exposed to volatiles from healthy G.herbaceum plants in olfactometer assays.In contrast,herbivore-induced plant volatiles(HIPVs)from G.herbaceum were found to be repellent.Comparative analysis revealed significant differences between the volatile profiles of healthy plants and those emitting HIPVs.Gas chromatography coupled with electroantennographic detection(GC-EAD)using female leafhoppers identified 18 electrophysiologically active volatile fractions from both healthy and HIPV-emitting plants.Of these,seven compounds were further evaluated through olfactometer assays.Among them,n-undecane,methyl salicylate,4-ethylacetophenone,n-tridecane,and n-pentadecane elicited attractive responses,whereasα-pinene and benzoic acid ethyl ester exhibited repellent effects on female A.biguttula biguttula.Conclusion The results highlight the distinct ecological role of herbivore-induced plant volatiles(HIPVs)from G.herbaceum in mediating interactions with the cotton leafhopper.These HIPVs are produced as part of the plant’s defense mechanism in response to herbivore attack,often acting to repel the herbivores.The electrophysiologically active compounds identified in this study hold potential as effective attractant or repellent cues and could be further explored for developing environmentally sustainable management strategies against cotton leafhoppers. 展开更多
关键词 Cotton Volatile organic compounds(VOCs) Herbivore-induced plant volatiles(HIPVs) Olfactometer assays Gas chromatography coupled with electroantennographic detection(GCEAD)
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RESPONSE OF PARASITOID MICROPLITIS MEDIATOR TO PLANT VOLATILES IN AN OLFACTOMETER 认领 引用 被引量：6
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作者 DONG Wenxia ZHANG Zhong-ning +2 位作者 FANG Yuling ZHANG Feng KAN Wei 《Entomologia Sinica》 2000年第4期344-350,共7页
The behavioral responses of Microplitis mediator were measured in a four-armed olfactometer.Leaves extract of the suitable host plant of its insect host,cotton,elicited higher olfactory responses;while leaves extract ... The behavioral responses of Microplitis mediator were measured in a four-armed olfactometer.Leaves extract of the suitable host plant of its insect host,cotton,elicited higher olfactory responses;while leaves extract of the less suitable host plant of its insect host,tomato or tobacco,elicited moderate responses.Volatiles from the least suitable host plant of its insect host,hot pepper,elicited the lowest responses.The different preferences to four plant leaves extracts suggested that M.mediator could discriminate between suitable and less suitable host plants of its insect host by semiochemicals.Green leaf volatiles(GLVs),cis-3-hexen-1-yl acetate,hexanal,and nonan-1-ol,are the most attractive compound among the 7 tested compounds.The parasitoids preferred host-damaged plant to undamaged plant,suggesting that they were able to distinguish between host and non-host of their insect host through varying chemical blends.Experience with cotton leaves extract prior to experiment enhanced their responses to the same odor. 展开更多
关键词 Microplitis mediator plant volatiles host plant ost-damaged plant olfactometer
A NO-CHOICE WIND TUNNEL OLFACTOMETER SYSTEM FOR EVALUATING THE ATTRACTIVENESS OF PLANT VOLATILES TO ADULT HELICOVERPA ARMIGERA (HÜBNER) (LEPIDOPTERA:NOCTUIDAE) 认领 引用 被引量：4
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作者 XIAO Chun YANG Zhi-hua +1 位作者 DU Jia-wei ZHANG Zhong-ning 《Entomologia Sinica》 2000年第3期257-264,共8页
A bioassay system to evaluate adult cotton bollworm(CBW),Helicoverpa armigera,behavioral responses to plant volatiles was described.The system was comprised of a no choice olfactometer,a wind tunnel,and a wind tunnel ... A bioassay system to evaluate adult cotton bollworm(CBW),Helicoverpa armigera,behavioral responses to plant volatiles was described.The system was comprised of a no choice olfactometer,a wind tunnel,and a wind tunnel room.The olfactometer was designed to provide for the testing and evaluation of volatiles from a variety of natural and synthetic sources.The behavioral responses in this system demonstrated that the volatiles of wilted leaves of Pterocarya stenoptera,Toona sinensis and Populus canadensis,the main materials of which poplar bundles were made,only could attract virgin females but not mated females and males.The volatiles emitted from fresh carrot and celery flowers did not exhibit significant attractiveness to both sexes of CBW.0.1%phenylacetaldehyde showed significant attraction for virgin females and males.The biological significance of attraction of volatiles from these plants for CBW was discussed. 展开更多
关键词 Olfactometer Wind tunnel Helicoverpa armigera Plant volatiles
Attraction of bruchid beetles Callosobruchus chinensis (L.) (Coleoptera: Bruchidae) to host plant volatiles 认领 引用 被引量：3
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作者 WANG Hong-min BAI Peng-hua +4 位作者 ZHANG Jing ZHANG Xue-min HUI Qin ZHENG Hai-xia ZHANG Xian-hong 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2020年第12期3035-3044,共10页
Host-plant volatiles play an important role as cues for herbivores in search of resources, mates and oviposition sites in complex environments. Plant volatile-based attractants can be developed for pest monitoring and... Host-plant volatiles play an important role as cues for herbivores in search of resources, mates and oviposition sites in complex environments. Plant volatile-based attractants can be developed for pest monitoring and control. Previously, we indicated that mated female adults of Callosobruchus chinensis showed choice preference behavior toward 2-hexenal and benzaldehyde. Our objective here was to investigate the synergistic effect of host-derived attractive volatiles in attracting C. chinensis under laboratory and field conditions in Shanxi Province, China. We hypothesized that the ratio and concentration of volatiles derived from Vigna radiata play critical roles for C. chinensis in locating this host. Therefore, we collected and identified the volatiles of mungbean by using headspace collection and GC-MS. The effectiveness of different ratios and concentrations of two compounds (2-hexenal and benzaldehyde) that elicit C. chinensis searching behavior were examined in Y-tube olfactometer assays. The combination of 300 μg μL^–1 2-hexenal and 180 μg μL^–1 benzaldehyde loadings exhibited a synergistic effect on attracting C. chinensis (82.35%). Compared to control traps, the adults were significantly attracted to traps baited with blends, and more attraction to females than males was found for blend traps in the field experiments. Our results suggest that blends of this specific concentration and ratio of benzaldehyde and 2-hexenal can be used in traps as attractants for C. chinensis monitoring and control in the field. 展开更多
关键词 Callosobruchus chinensis plant volatiles synergistic effect olfactometer attractant
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Identification of Extracts Responsible for the Effect of Tick Reppeling Activity of Turmeric 认领 引用
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作者 Wattevidanage J. Perera Prasad Senadeera +1 位作者 Parthirage P. D. C. Perera Derrick R. Kulatunge 《Open Journal of Applied Sciences》 2022年第1期51-58,共8页
Turmeric (Curcuma longa L.) is one of the essential condiments all over the world. Turmeric is an important medicine in the eastern medical systems and its therapeutic properties have been well recorded. Curcumin, com... Turmeric (Curcuma longa L.) is one of the essential condiments all over the world. Turmeric is an important medicine in the eastern medical systems and its therapeutic properties have been well recorded. Curcumin, commonly called diferuloyl methane (hydrophobic polyphenol), was studied extensively for its biological properties. Sri Lankan turmeric records relatively higher percentage (up to 9%) of curcumin. The bioactive compounds with insecticidal or pesticidal activity were studied from the Sri Lankan turmeric as there is an increasing demand for natural products to control ticks and fleas in dogs against the chemicals that induce some secondary effects. Fifty grams (50 g) of dried coarsely ground turmeric (Curcuma longa L.) was subjected to sequential extractions with four different solvents in ascending order of polarity using Soxhlet apparatus. The treatments consisted of solvent-fractionated turmeric extracts from hexane, dichloromethane (CH2Cl2), ethyl acetate (EtOAc) and Methanol (CH3OH) dissolved in the water to 100 ppm. The test carried out using a modified olfactometer and the degree of repellency of common tick species Rhipicephalus sanguineus was recorded. The hexane extract from dried turmeric powder showed the highest repellence of 80% whereas other fractions showed lesser repellence. Further studies in the direction of purification, dose dependent repellency and persistency. 展开更多
关键词 Curcumin Modified Olfactometer Fractionated Curcuma longa L. Sequential Therapeutic
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Involvement of chemosensory proteins in host plant searching in the bird cherry-oat aphid 认领 引用 被引量：5
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作者 Xiong Peng Lang Liu +6 位作者 Yi-Xiao Huang Su-Ji Wang De-Xian Li Shu-Ting Chen Jean-Christophe Simon Ming-Jing Qu Mao-Hua Chen 《Insect Science》 SCIE CAS CSCD 2021年第5期1338-1353,共16页
Chemosensory systems are considered to play an important role in host plant selection in herbivorous insects.However,few studies have focused on chemosensory proteins(CSPs)for aphid host-location mechanisms.The roles ... Chemosensory systems are considered to play an important role in host plant selection in herbivorous insects.However,few studies have focused on chemosensory proteins(CSPs)for aphid host-location mechanisms.The roles of CSPs in searching for different Poaceae species(wheat,barley,triticale,maize and sorghum)were tested in Rhopalosiphum padi,an important cereal pest.The olfactometer assays showed that R.padi responds to plant odors.Seven R.padi CSP genes were identified.Influence of aphid morph,tissue and starvation state on expression patterns of CSPs was evaluated.Expression levels of CSPI,CSP4,CSP5 and CSP6 in winged aphids were significantly higher than those in wingless ones.Transcription levels of four genes(CSPI,CSP4,CSP5 and CSP6)were relatively higher in the head with antennae,and the four genes tended to be upregulated follow ing starvation.Silencing of three CSPs(CSP4,CSP5 and CSP6)altered aphid host-location behavior in response to the five different host plants tested.Three volatile compounds of host plants(octanal,[E]-2-hexenol and linalool)have signif-icant attraction to winged R.padi according to the four-arm olfactometer tests.Molecular docking predicted hydrogen bonding sites which played key roles in the binding of CSP4,CSP5 and CSP6 with volatile compounds.Knockdown of CSP4 or CSP5 significantly decreased the staying time of R.padi in the arms with octanal.However,knockdown of CSP6 could not affect the response of R.padi to octanal.These results bring evidence for the involvement of three CSPs in R.padi host-location behavior. 展开更多
关键词 host choice experiment olfactometer Rhopalosiphum padi RNAi starvation wing form
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Kairomonal effect of sex pheromone components of two lepidopteran olive pests on Trichogramma wasps 认领 引用 被引量：1
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作者 Panos Milonas Basilios E.Mazomenos Maria A.Konstantopoulou 《Insect Science》 SCIE CAS 2009年第2期131-136,共6页
Egg parasitoids are known to use a wide range of chemicals,emitted by plants,host eggs or adults,for host selection.The effect of the sex pheromone components of the lepidopteran olive pests Prays oleae(Lepidoptera:Yp... Egg parasitoids are known to use a wide range of chemicals,emitted by plants,host eggs or adults,for host selection.The effect of the sex pheromone components of the lepidopteran olive pests Prays oleae(Lepidoptera:Yponomeutidae)and Palpita unionalis(Lepidoptera:Pyralidae)was studied under laboratory conditions,on the foraging behaviour of the egg parasitoid Trichogramma oleae(Hymenoptera:Trichogrammatidae).The re-sponse of T.oleae wasps to(Z)-7-tetradecenal and(E)-1 l-hexadecenal,major sex phero-mone components ofP.oleae and P.unionalis respectively,depended on the dose of the pheromone used in a Y-tube olfactometer bioassay.(E)-11-hexadecenal elicited maximum attraction(70%)at a dose of 1 pg,while a dose of 100 pg(Z)-7-tetradecenal attracted 80%of the tested wasps.(E)-11-hexadecenyl acetate,the second sex pheromone component of P.unionalis,and the binary blend of(E)-i 1-hexadecenyl acetate:(E)-11-hexadecenal(7:3)were not attractive at these doses.The results of this research are discussed in view that they may be considered as alternatives in the biological control of these pests. 展开更多
关键词 egg parasitoids olive pest semiochemicals Y-tube olfactometer
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Effect of the postfeeding interval on olfactory responses of thrips to herbivore-induced cotton plants 认领 引用 被引量：2
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作者 Rehan Silva Gimme H. Walter +1 位作者 Lewis J. Wilson Michael J. Furlong 《Insect Science》 SCIE CAS CSCD 2016年第6期881-892,共12页
We investigated the responses of 3 thrips species, Frankliniella schultzei Tryborn, E occidentalis Pergrande, and Thrips tabaci Lindeman （Thysanoptera： Thripidae） to herbivore-damaged and undamaged cotton seedlings... We investigated the responses of 3 thrips species, Frankliniella schultzei Tryborn, E occidentalis Pergrande, and Thrips tabaci Lindeman （Thysanoptera： Thripidae） to herbivore-damaged and undamaged cotton seedlings （Gossypium hirsutum L. [Malvales： Malvaceae]） at a range of time intervals following damage by adult Tetranychus urticae （Koch）, adult T. ludeni （Zacher） （Acari： Tetranychidae） or Helicoverpa armigera （Hubner） （Lepidoptera： Noctuidae） larvae in olfactometer assays. The intensity/frequency of the response of thrips to herbivore-induced plants decreased with time and ultimately disappeared in all cases; however, the rate at which the response declined was related to the herbivore species that inflicted the damage. All 3 species of thrips were attracted to plants damaged by T. urticae for longer than they were to plants damaged by T. ludeni. The duration for which damaged plants remained attractive was also affected by the degree of damage inflicted on cotton seedlings. For example, E schultzei was attracted to plants damaged by a higher density of two-spotted spider mites （100/plant） for much longer than to plants damaged by a lower density of these mites （50/plant）. The results reinforce previous studies that demonstrate that arrangement of variables influences the responses of thrips to their herbivore-induced cotton host plants. Results also show that these responses are variable in time following herbivore damage to cotton plants, which further demonstrates how difficult it is to generalize about the functional significance of these interactions. 展开更多
关键词 attraction cotton duration induced responses olfactometer Thysanoptera
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Age at reproductive maturity and effect of age and time of day on sex attraction in the potato psyllid Bactericera cockerelli 认领 引用 被引量：2
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作者 Christelle Guédot David R.Horton Peter J.Landolt 《Insect Science》 SCIE CAS CSCD 2012年第5期585-594,共10页
The potato psyllid,Baetericera(=Paratrioza)cockerelli(gulc)(Hemiptera:Triozidae),is a major pest of potato.Studies were conducted to determine the age at which both males and females reach reproductive maturity and th... The potato psyllid,Baetericera(=Paratrioza)cockerelli(gulc)(Hemiptera:Triozidae),is a major pest of potato.Studies were conducted to determine the age at which both males and females reach reproductive maturity and the effect of age and time of day on sex attraction.Adult B.cockerelli reach reproductive maturity within 48 h post-eclosion,with females being mature on the day of eclosion and males at 1 day post-eclosion.Oviposition generally began 2 days after mating but was delayed when females mated within 2 days post-eclosion.In laboratory olfactometer assays,the age of females used as odor sources and the age of males assayed to these odors did not affect sex attraction,with both younger(1-4-day-old)and older(8-10-day-old)males being attracted to females,regardless of female age(1-4-day-old or 8-10-day-old).Males assayed to live females at different times during the photophase(between 8:00 and 20:00 hours)were attracted to females between 11:00 and 17:00 hours,showing a temporal periodicity in sex attraction with B.cockerelli at least during the photophase. 展开更多
关键词 mate attraction olfactometer oviposition periodicity potato preference,Triozidae
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Influence of cornicle droplet secretions of the cabbage aphid, Brevicoryne brassicae, on parasitism behavior of na'fve and experienced Diaeretiella rapae 认领 引用 被引量：1
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作者 Hamid R. S. Moayerit Arash Rasekh Annie Enkegaard 《Insect Science》 SCIE CAS CSCD 2014年第1期56-64,共9页
Insects have evolved amazing methods of defense to ward off enemies. Many aphids release cornicle secretions when attacked by predators and parasitoids. These se cretions contain an alarm pheromone that alerts other c... Insects have evolved amazing methods of defense to ward off enemies. Many aphids release cornicle secretions when attacked by predators and parasitoids. These se cretions contain an alarm pheromone that alerts other colony members of danger, thereby providing indirect fitness benefits to the releaser. In addition, contact with cornicle se cretions could also threaten an attacker and could provide direct fitness to the releaser. However, cornicle secretions may also be recruited as a kairomonal cue by aphid natural enemies. In this study, we investigated the effect of the cornicle droplet volatiles of the cabbage aphid, Brevicoryne brassicae （L.）, on the hostsearching behavior of naive and experienced female Diaeretiella rapae （M＇Intosh） parasitoids in olfactometer studies. In addition, we evaluated the role ofB. brassicae cornicle droplets on the oviposition prefer ence of the parasitoid in a twochoice bioassay. Naive females did not exhibit any preference between volatiles from aphids secreting cornicle droplets over nonsecreting aphids, while experienced parasitoids exploited the secretions in their host location. Experienced females were also able to choose volatiles from both secreting and nonsecreting aphids over clean air, while this ability was not observed in naive females. Although secretion of cornicle droplets did not influence the percentage of first attack in either naive or experienced females, the success of attack （i.e. resulting in a larva） was significantly different between secreting and nonsecreting aphids in the case of experienced parasitoids. 展开更多
关键词 alarm pheromone kairomone learning oviposition preference physiologi-cal cost Y-tube olfactometer
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