Nematode-antagonistic trichothecenes from Fusarium equiseti.

abstract：:Bark beetles (Coleoptera: Curculionidae, Scolytinae) have specialized feeding habits, and commonly colonize only one or a few closely related host genera in their geographical ranges. The red turpentine beetle, Dendroctonus valens LeConte, has a broad geographic distribution in North America and exploits volatile cues...

journal_title：Journal of chemical ecology

authors： Erbilgin N,Mori SR,Sun JH,Stein JD,Owen DR,Merrill LD,Bolaños RC,Raffa KF,Montiel TM,Wood DL,Gillette NE

更新日期：2007-01-01 00:00:00

abstract：:The sex pheromone components of the two sibling species of the dingy cutworm that occur on the prairies of western Canada were identified in abdomen-tip extracts from calling female moths. Three monounsaturated acetates, (Z)-7-dodecenyl acetate, (Z)-9-tetradecenyl acetate, and (Z)-11-hexadecenyl acetate, are common to...

journal_title：Journal of chemical ecology

authors： Byers JR,Struble DL

更新日期：1990-10-01 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

authors： Lyu SW,Blum U,Gerig TM,O'Brien TE

更新日期：1990-08-01 00:00:00

abstract：:Quantities of attractive (exo-brevicomin and frontalin) and inhibitory (trans-verbenol, verbenone, and ipsdienol) pheromones were monitored in both sexes ofDendroctonus brevicomis during their colonization of a ponderosa pine. Verbenone was found in males in the greatest amounts at the time of landing, and it declined...

journal_title：Journal of chemical ecology

authors： Byers JA,Wood DL,Craig J,Hendry LB

更新日期：1984-06-01 00:00:00

abstract：:Termite colonies are almost always founded by a pair of winged dispersers, in spite of the high costs and low success rates inherent in independent colony foundation. The dispersal flights of imagoes from natal colonies are followed by mate search, mediated by sex-pairing pheromones. Here, we studied the chemistry of ...

journal_title：Journal of chemical ecology

authors： Dolejšová K,Křivánek J,Kalinová B,Hadravová R,Kyjaková P,Hanus R

更新日期：2018-06-01 00:00:00

abstract：:Feeding by herbivorous insects may change photosynthetic activity of host plants. We studied how feeding and oviposition by herbivorous stink bugs, Murgantia histrionica and Nezara viridula (Heteroptera: Pentatomidae), affect photosynthetic parameters of Brassica oleracea (savoy cabbage) and Phaseolus vulgaris (French...

journal_title：Journal of chemical ecology

authors： Velikova V,Salerno G,Frati F,Peri E,Conti E,Colazza S,Loreto F

更新日期：2010-06-01 00:00:00

abstract：:The presence of a stable radical species in both fresh straw and that which had been submerged in aerated water for up to six months has been demonstrated using electron paramagnetic (spin) resonance (EPR or ESR) spectroscopy. A radical signal was associated also with material shown to contain straw lignin markers, wh...

journal_title：Journal of chemical ecology

authors： Pillinger JM,Cooper JA,Harding CJ

更新日期：1996-05-01 00:00:00

abstract：:The hydrocarbons of honeybee comb wax vary significantly between colonies. This variation is explained in part by genetic (familial) differences among colonies. Even though significant differences in wax hydrocarbons exist among families, there is a high level of consistency within and among families in a correlation ...

journal_title：Journal of chemical ecology

authors： Breed MD,Page RE Jr,Hibbard BE,Bjostad LB

更新日期：1995-09-01 00:00:00

abstract：:Information processing in the olfactory pathway underlying the perception of semiochemicals by insects is discussed. Both the chemical message for mates and the message for food consist of blends of chemicals. Olfactory receptors in an insect species are tuned to the detection of those compounds which comprise such ch...

journal_title：Journal of chemical ecology

authors： Visser JH,de Jong R

更新日期：1988-11-01 00:00:00

abstract：:Coccinellid beetles contain a variety of defensive alkaloids that render them unpalatable to predators. Epilachna paenulata (Coleoptera: Coccinellidae) is a South American ladybird beetle that feeds on plants of the Cucurbitaceae family. The defensive chemistry of E. paenulata has been characterized as a mixture of sy...

journal_title：Journal of chemical ecology

authors： Camarano S,González A,Rossini C

更新日期：2009-01-01 00:00:00

abstract：:The plant secondary metabolite papyriferic acid (PA) deters browsing by snowshoe hares (Lepus americanus) on the juvenile developmental stage of the Alaska paper birch (Betula neoalaskana). However, the physiological mechanism that reduces browsing remains unknown. We used pharmacological assays and molecular modeling...

journal_title：Journal of chemical ecology

authors： Forbey JS,Pu X,Xu D,Kielland K,Bryant J

更新日期：2011-12-01 00:00:00

abstract：:To evaluate methods for promoting consumption of tamarisk plants by beavers (Castor canadensis), we determined the feeding responses by captive beavers to diets that contained tannins and sodium chloride (hereafter referred to as tamarisk diet). In two-choice tests, beavers consumed equivalent quantities of tamarisk d...

journal_title：Journal of chemical ecology

authors： Kimball BA,Perry KR

更新日期：2008-08-01 00:00:00

abstract：:Phlorotannins are ubiquitous secondary metabolites in brown algae that are phenotypically plastic and suggested to have multiple ecological roles. Traditionally, phlorotannins have been quantified as total soluble phlorotannins. Here, we modify a quantification procedure to measure, for the first time, the amount of c...

journal_title：Journal of chemical ecology

authors： Koivikko R,Loponen J,Honkanen T,Jormalainen V

更新日期：2005-01-01 00:00:00

abstract：:Moths belonging to the speciesSpodoptera sunia have been recognized as a new pest of cotton in Central America. By means of electro-physiologic investigations, solid sample injection gas chromatography, and combined gas chromatography-mass spectrometry, (Z)-9-tetradecenyl acetate, (9Z,12E)-9,12-tetradecadienyl acetate...

journal_title：Journal of chemical ecology

authors： Bestmann HJ,Attygalle AB,Schwarz J,Vostrowsky O,Knauf W

更新日期：1988-02-01 00:00:00

abstract：:The sweetpotato weevil, Cylas formicarius (Fabricius) (Coleoptera: Brentidae), is the most serious pest of sweetpotato around the world, damaging sweetpotatoes in the field and in storage, as well as being a quarantine pest. Because the larval period is spent within vines or tubers, and the adults are nocturnal, chemi...

journal_title：Journal of chemical ecology

authors： Reddy GV,Gadi N,Taianao AJ

更新日期：2012-07-01 00:00:00

abstract：:The synthesis of the major component of the sex pheromone of the processionary mothThaumetopoea pityocampa is described. The synthesis uses the carbocupration of acetylene, followed by the coupling with the appropriate 1-iodoalkyne. This synthetic pheromone was shown to be of 98.8%Z purity. ...

journal_title：Journal of chemical ecology

authors： Gardette M,Alexakis A,Normant JF

更新日期：1983-02-01 00:00:00

abstract：:The bioactivity of 22 essential oils from aromatic and medicinal plants was tested uponAcanthoscelides obtectus Say (Coleoptera, Bruchidae), a pest of kidney bean (Phaseolus vulgaris L.). The insecticidal effect was evaluated by determination of 24- and 48-hr LC50 and LC50 (from 1.50 mg/ dm(3) to more than 1000 mg/dm(...

journal_title：Journal of chemical ecology

authors： Regnault-Roger C,Hamraoui A,Holeman M,Theron E,Pinel R

更新日期：1993-06-01 00:00:00

abstract：:Adult females of Monochamus alternatus are known to use palpation to recognize oviposition scars that contain eggs and to be deterred from oviposition. This study investigated the oviposition-deterring activity of a jellylike secretion deposited by the females immediately after oviposition and methanol extracts of fem...

journal_title：Journal of chemical ecology

authors： Anbutsu H,Togashi K

更新日期：2001-06-01 00:00:00

abstract：:Epinotia aporema (Walsingham) is a Neotropical pest of legumes in southern South America. Its importance has increased during the last decade owing to the significant growth of soybean production in the region. Monitoring of E. aporema is difficult due to the cryptic behavior of the larvae, and hence, chemical control...

journal_title：Journal of chemical ecology

authors： Altesor P,Rossini C,Zarbin PH,González A

更新日期：2009-03-01 00:00:00

abstract：:The analyses of virgin female sex pheromone gland extracts by gas chromatography (GC), GC-electroantennographic detection (GC-EAD) and GC-mass spectrometry (GC-MS) followed by field-trapping experiments, have identified (E)-9-tetradecenyl acetate (E9-14:Ac) as the primary sex pheromone component of the spruce budmoth,...

journal_title：Journal of chemical ecology

authors： Silk PJ,Butterworth EW,Kuenen LP,Northcott CJ,Dunkelblum E,Kettela EG

更新日期：1989-10-01 00:00:00

abstract：:The results of laboratory experiments carried out with both monogynous and artificially polygynousMessor barbarus ant colonies (which under natural conditions are always monogynous) have shown that the workers belonging to monogynous colonies were able to discriminate between intruders from other monogynous colonies a...

journal_title：Journal of chemical ecology

authors： Provost E,Riviere G,Roux M,Bagneres AG,Clement JL

更新日期：1994-11-01 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

authors： Hedenström E,Andersson F

更新日期：2002-06-01 00:00:00

abstract：:The effect of brief pheromone exposures on responses of codling moth (Cydia pomonella L.) males was tested by flight-tunnel and electroantennogram (EAG) studies. Males were preexposed to pheromone for up to 3 min as they sat in release cages or for shorter times (a few seconds to several min) upon initiating flights o...

journal_title：Journal of chemical ecology

authors： Stelinski LL,Gut LJ,Miller JR

更新日期：2006-07-01 00:00:00

abstract：:A two-choice, wind-tunnel olfactometer was designed and contructed to determine whether second-instar eastern spruce budworm larvae,Christoneura fumiferana (Clem.), could detect and discriminate among host-plant volatiles. Volatiles of current year's growth ofPicea glauca were preferred over those ofP. rubens, P. mari...

journal_title：Journal of chemical ecology

authors： Ascoli A,Albert PJ

更新日期：1985-07-01 00:00:00

abstract：:Jasmonic acid (JA) is a key molecule initiating plant defensive responses to herbivory. Our previous work has shown that this phytohormone is often present at high concentrations in eggs and neonates of lepidopteran species. In this work, we document the concentrations of JA found in various tissues of larval H. vires...

journal_title：Journal of chemical ecology

authors： Tooker JF,De Moraes CM

更新日期：2006-10-01 00:00:00

abstract：:Several properties of the compound 3,4-dihydro-2H-pyrrole(A1-pyrroline), which has been reported as a component of the male-produced Mediterranean fruit fly pheromone, have been determined by [(1)H]- and [(13)C]nuclear magnetic resonance spectroscopy. The stability of Δ(1)-pyrroline in several solvents and at moderate...

journal_title：Journal of chemical ecology

authors： Baker JD,Heath RR,Millar JG

更新日期：1992-09-01 00:00:00

abstract：:The parasitoidsB. intermedia andB. lasus aggregate at sites previously frequented. Extracts from filter paper conditioned by aggregated parasitoids were chromatographed (adsorption column and gas-liquid chromatography) and bioassayed. An active component that elicited aggregation response forB. intermedia was isolated...

journal_title：Journal of chemical ecology

authors： Mohamed MA,Coppel HC

更新日期：1987-06-01 00:00:00

abstract：:Chemical investigation of the Dufour gland contents of three species ofMyrmecia by GC and GC-MS showed thatM. gulosa andM. nigriceps contain predominantly linear hydrocarbons, whereasM. pilosula contains acetates, aldehydes, and propionates. The major components ofM. gulosa andM. nigriceps are (Z)-8-heptadecene, penta...

journal_title：Journal of chemical ecology

authors： Jackson BD,Billen JP,Morgan ED

更新日期：1989-08-01 00:00:00

abstract：:Selected combinations of (Z)-5-decenyl, (Z)-7-dodecenyl, and (Z)-9-tetradecenyl acetates, the pheromone components of the turnip mothAgrotis Segetum were tested for field attractancy at six, two, and three sites in Europe, Asia, and Africa, respectively. At all of the sites in Eurasia and in northern Africa the ternar...

journal_title：Journal of chemical ecology

authors： Tòth M,Löfstedt C,Blair BW,Cabello T,Farag AI,Hansson BS,Kovalev BG,Maini S,Nesterov EA,Pajor I,Sazonov AP,Shamshev IV,Subchev M,Szöcs G

更新日期：1992-08-01 00:00:00

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 s...

journal_title：Journal of chemical ecology

authors： Blight MM,Pickett JA,Wadhams LJ,Woodcock CM

更新日期：1995-11-01 00:00:00