Abstract：
:The response of theCeutorhynchus assimilis antenna to volatiles in air entrainment-derived extracts of oilseed rape,Brassica napus, was studied using coupled gas chromatography (GC)-electroantennography (EAG) and coupled GC-single cell recording (SCR). By means of these techniques and coupled gas chromatography-mass spectrometry (GC-MS), 25 active compounds were identified, including isoprenoids and compounds derived from fatty acids and amino acids. Some of the latter, the isothiocyanates and goitrin, and probably indole and benzyl cyanide, are catabolites of glucosinolates. The electrophysiological activity of the identified compounds was confirmed by EAG using a physiologically discriminating dose, and by SCR studies. The importance of the combined use of the EAG and SCR techniques was demonstrated, since specific olfactory cells were located for five compounds that did not elicit significant EAG responses. The majority of the olfactory cells from which single cell recordings were obtained showed very high specificity, and in numerous recordings there were consistent pairings of specific cell types.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Blight MM,Pickett JA,Wadhams LJ,Woodcock CMdoi
10.1007/BF02033667subject
Has Abstractpub_date
1995-11-01 00:00:00pages
1649-64issue
11eissn
0098-0331issn
1573-1561journal_volume
21pub_type
杂志文章abstract：:Nitrogen-limited plants ofHeterotheca subaxillaris accumulate greater quantities of leaf volatile terpenes than do nitrogen-rich plants. A series of feeding trials were performed to determine if such nitrate-limited plants are better defended against generalist-feeding insect herbivores. Soybean looper (Pseudoplusia i...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01012871
更新日期：1987-11-01 00:00:00
abstract：:The evolution of male moth responses to pheromone blends may be constrained by a trade-off between two response traits: sensitivity and breadth of response. Population genetic simulations predict that if sensitivity and breadth of response are negatively correlated (i.e., a trade-off exists), then selection will favor...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9546-8
更新日期：2008-11-01 00:00:00
abstract：:Many plant secondary compounds induce detoxification activity in herbivorous insects. Although inducibility may be advantageous as a means of reducing costs associated with maintenance of metabolism, another benefit of inducibility is that it may allow insects to tailor their detoxification profiles to multiple substr...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1016292317948
更新日期：2002-07-01 00:00:00
abstract：:We investigated volatile infochemicals possibly involved in location of the generalist predatory mite Neoseiulus californicus to plants infested with spider mites in a Y-tube olfactometer. The predators significantly preferred volatiles from lima bean leaves infested with Tetranychus urticae to uninfested lima bean le...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-005-6075-6
更新日期：2005-09-01 00:00:00
abstract：:To determine how individual phenolic acids in a mixture might affect phosphorus (P) uptake, 15-day-old cucumber seedlings grown in solution culture were treated with ferulic, vanillic,p-coumaric, or equimolar mixtures of these phenolic acids. Phenolic acid and P uptake were determined by solution depletion. The joint ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01017478
更新日期：1990-08-01 00:00:00
abstract：:Olfactory responses of 72- to 96-hr-old, 24-hr starved adult male, female, or mixed-sex groups of the red flour beetle,Tribolium castaneum (Herbst), to volatiles from wheat and millet kernels, certain milled fractions, and solvent extracts were recorded by using a lightsensitive apparatus. Wheat-germ volatiles from in...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00989103
更新日期：1982-12-01 00:00:00
abstract：:Lycopersicon hirsutum, a wild relative of the tomato, is highly resistant to arthropod herbivores. Both botanic forms ofL. hirsutum, L. hirsutum f.glabratum (C.H. Mull.) andL. hirsutum f.typicum (Humb. & Bonpl.), are resistant to two-spotted spider mites,Tetranychus urticae Koch. However, leaves and trichome secretion...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00980597
更新日期：1993-12-01 00:00:00
abstract：:The fumigant toxicity of 28 essential oils extracted from various spice and herb plants and some of their major constituents were assessed for adult coleopteransRhyzopertha dominica, Oryzaephilus surinamensis, Tribolium castaneum, andSitophilus oryzae. Three groups of active materials were distinguished: (1) The compo...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00982120
更新日期：1991-03-01 00:00:00
abstract：:A detailed characterization of two humic fractions was performed: One with low relative molecular mass (LMr<3,500 Da) and one with high relative molecular mass (HMr>3,500 Da). Distinct (1)H NMR spectroscopic patterns were observed for the two fractions. HMr showed an aromatic proton region, an intense and broad region...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-006-9206-9
更新日期：2007-01-01 00:00:00
abstract：:Bees of the genusTrigona and subgenusTrigona possess volatile materials in their mandibular glands, used as alarm substances and as marking pheromones. Heads of workers ofTrigona fulviventris were analyzed by gas chromatography-mass spectrometry. The two major volatile components were nerol (∼ 50%), and octyl caproate...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00990750
更新日期：1982-09-01 00:00:00
abstract：:Many species of longhorn beetles (Coleoptera: Cerambycidae) utilize male-produced aggregation-sex pheromones that attract both sexes. However, the reasons why and the details of how this type of pheromone is used by cerambycids and other coleopteran species that utilize analogous male-produced pheromones remain unclea...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-019-01047-7
更新日期：2019-03-01 00:00:00
abstract：:The suitability of the Bradford protein assay for measuring plant protein was evaluated and a standard method developed. The assay involves extraction of dried, fresh, or frozen plant material in 0.1 NaOH for 30 min. Replicate 100-μl aliquots of centrifuged supernatant are assayed with 5 ml Bio-Rad Bradford dye reagen...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01015193
更新日期：1989-03-01 00:00:00
abstract：:The onion fly Delia antiqua is a specialist herbivore attacking only onions and closely related Allium species. n-Dipropyl disulfide (Pr2S2) has long been known to be attractive to onion flies in the laboratory and in the field. However, the insect's response is highly variable. Using behavioral bioassays we found tha...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1025642703888
更新日期：2003-09-01 00:00:00
abstract：:The qualitative and quantitative composition of the principal lipid constituents of Siberian musk deer (Moschus moschiferus) preputial gland secretion, main odor carriers and potential precursors of odorous substances, was investigated by means of high-performance liquid chromatography. Free fatty acids and phenols (1...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01020352
更新日期：1987-01-01 00:00:00
abstract：:Temporal gland secretion (TGS), obtained from 15 different mature African elephants in Kruger National Park was analyzed for volatile constituents. Only five volatile components were present.p-Cresol was present in all samples, but phenol was found as an appreciable component of only one sample and as trace amounts in...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994782
更新日期：1982-05-01 00:00:00
abstract：:Phenolic acids and related compounds were separated by gas chromatography using three separate columns. One of these columns was coupled to a Fourier transform infrared spectrometer. The trimethylsilyl derivatives could be separated and identified by comparing the relative retention times of the three different column...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01025891
更新日期：1987-02-01 00:00:00
abstract：:The role of the steroidal glycoalkaloid α-tomatine in the hostplant resistance of tomato to the Colorado potato beetle,Leptinotarsa decemlineata (Say) was examined in short- (24 hr; using first- and fourth-instar larvae) and long-term (first-instar larvae reared through the prepupal stage) feeding experiments. Consump...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01395604
更新日期：1991-05-01 00:00:00
abstract：:The relative activities of 10 glucosinolates in stimulating oviposition byP. rapae andP. napi oleracea were compared under the same conditions. When tested at the same concentration, the structurally different glucosinolates stimulated both butterfly species to widely varying degrees. In most cases,P. rapae was more s...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02059739
更新日期：1994-05-01 00:00:00
abstract：:Male olive fruit fly attraction to the four synthetic components of the female sex attractant pheromone was studied under laboratory and field conditions. In laboratory tests males responded to all four components tested separately. Component I, (1,7-dioxaspiro[5.5]undecane) was more attractive than any of the remaini...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01411425
更新日期：1985-03-01 00:00:00
abstract：:In laboratory experiments conducted to compare the kairomonal activity forMicroplitis croceipes (Cresson) of frass fromHeliothis zea (Boddie) larvae fed on different host plants,M. croceipes females responded to extracts of frass from larvae reared on cotton or soybeans but not on corn. The lack of response to frass f...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00987627
更新日期：1981-11-01 00:00:00
abstract：:We have developed a flexible, moderately priced, behavioral analysis system which has been used to determine the response of salmonids to certain olfactory stimulants. The system, which we call ITS for interactive computer-video tracking system, consists of a 128K Apple IIe computer with software, a video camera and v...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01020536
更新日期：1987-05-01 00:00:00
abstract：:Plants have evolved intricate defence strategies against herbivore attack which can include activation of defence in response to stress-related volatile organic compounds (VOCs) emitted by neighbouring plants. VOCs released by intact molasses grass (Melinis minutiflora), have been shown to repel stemborer, Chilo parte...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-019-01122-z
更新日期：2019-12-01 00:00:00
abstract：:The released pheromone and the glandular lipids, labeled with [(14)C]acetate, were analyzed fromChoristoneura orae andChoristoneura fumiferana budworm moths by thin-layer chromatography and autoradiography. Radiolabeled lipids in the gland appeared to be identical in the two moths with both insects containing high amo...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01014083
更新日期：1990-05-01 00:00:00
abstract：:Two components were identified from aeration extracts of the virgin female Madeira mealybug, Phenacoccus madeirensis as trans-(1R,3R)-chrysanthemyl (R)-2-methylbutanoate and (R)-lavandulyl (R)-2-methylbutanoate (with a ratio of 3:1) by a combination of gas chromatography retention time matches, mass spectrometry, and ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-009-9649-x
更新日期：2009-06-01 00:00:00
abstract：:3,7-Dimethyl-2-undecanol, 3,7,9-trimethyl-2-tridecanol, and 3,7, 11-trimethyl-2-tridecanol were synthesized as racemic mixtures in moderate yields. The alcohols are known precursors of the female sex pheromones of the pine sawfly species Diprion nipponica, Macrodiprion nemoralis, and Microdiprion pallipes, respectivel...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1016289902732
更新日期：2002-06-01 00:00:00
abstract：:Results of experiments conducted on ink recovered from the squid Sepioteuthis australis indicate that there is no epinephrine or protein naturally present in the ink as it would be ejected in vivo. Protein content was effectively zero when ink was syringed from the duct end of the ink sac of freshly killed animals. By...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-010-9869-0
更新日期：2010-11-01 00:00:00
abstract：:Tree volatiles and pheromones produced by southern bark beetles were bioassayed for response by the clerid predatorThanasimus dubius (F.). Upwind flights in a laboratory olfactometer, modified from Visser (1976), were used to determine the attractiveness of compounds. Differences in response to a solvent control and p...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00987655
更新日期：1984-01-01 00:00:00
abstract：:The major component of the rectal glandular extract and volatile emission of maleBactrocera cacuminatus is racemic 1,7-dioxaspiro[5.5]undecane. l-Hydroxy-5-nonanone as its open chain form, together with 6-n-butyl-3,4-dihydro-2H-pyran are minor components. 1,7-Dioxaspiro[5.5]undecan-4-ol is present at a low level and i...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994347
更新日期：1991-02-01 00:00:00
abstract：:Plants synthesize a wide range of bioactive secondary metabolites to defend against pests and pathogens. Red alder (Alnus rubra) bark, root, and leaf extract have a long history of use in traditional medicine and hygiene. Diarylheptanoids, especially oregonin ((5S)-1,7-bis(3,4-dihydroxyphenyl)-5-(β-D-xylopyranosyloxy)...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-021-01244-3
更新日期：2021-01-21 00:00:00
abstract：:Three amino acid-derived compounds were identified in extracts from the pheromone glands of the scarab beetle Phyllophaga elenans, i.e., L-isoleucine methyl ester (LIME), N-formyl L-isoleucine methyl ester (For-LIME), and N-acetyl L-isoleucine methyl ester (Ac-LIME). The compounds were characterized from their spectra...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1021916327715
更新日期：2003-01-01 00:00:00
