Ethanol and (-)-alpha-Pinene: attractant kairomones for bark and ambrosia beetles in the southeastern US.

abstract：:Resistant willow (Salix viminalis L.) genotypes react with a rapid hypersensitive response (HR) when attacked by the gall midge Dasineura marginemtorquens Bremi. In general, infected plant genotypes or species that react hypersensitively to pathogens accumulate salicylic acid (SA) locally and systemically. Thus, patho...

journal_title：Journal of chemical ecology

authors： Ollerstam O,Larsson S

更新日期：2003-01-01 00:00:00

abstract：:Crude extracts of root of the forage legumesLotus pedunculatus andCoronilla varia (crownvetch) were toxic when administered orally to 3rd instarCostelytra zealandica larvae. A group of 3-nitropropanoyl-D-glucopyranoses was isolated from active fractions of the crude extracts. These toxins, some of which were already k...

journal_title：Journal of chemical ecology

authors： Hutchins RF,Sutherland OR,Gnanasunderam C,Greenfield WJ,Williams EM,Wright HJ

更新日期：1984-01-01 00:00:00

abstract：:Holcus lanatus, a temperate grass, was found to contain low but measurable concentrations of condensed tannins (CT), according to the vanillin-HCl and the butanol-HCl methods. The variation in CT concentrations between different types of tissue including leaf age and reproductive versus nonreproductive tissue was exam...

journal_title：Journal of chemical ecology

authors： Iason GR,Hodgson J,Barry TN

更新日期：1995-08-01 00:00:00

abstract：:Leaves of Chrysanthemum morifolium cv. Ramat were extracted sequentially with hexane, ethyl acetate, and methanol. The methanol fraction, when incorporated into artificial diet was found to reduce the growth of cabbage looper (Trichoplusia ni Hubner) larvae at concentrations between 500 and 5000 ppm of diet. Fractiona...

journal_title：Journal of chemical ecology

authors： Beninger CW,Abou-Zaid MM,Kistner AL,Hallett RH,Iqbal MJ,Grodzinski B,Hall JC

更新日期：2004-03-01 00:00:00

abstract：:Lichen secondary metabolites putatively protect lichens from a variety of environmental stress factors, but it is unknown whether these substances respond to air pollution. To assess such a possibility, the three major phenolics of two epiphytic lichen species with contrasting tolerance to chronic air pollution from M...

journal_title：Journal of chemical ecology

authors： Valencia-Islas N,Zambrano A,Rojas JL

更新日期：2007-08-01 00:00:00

abstract：:Herbivorous insects searching for a host plant need to integrate a sequence of multimodal sensory inputs. We conducted a series of no-choice experiments in a laboratory wind tunnel to examine the behavioral response of the specialist fruit fly, Neoceratitis cyanescens (Diptera: Tephritidae), to host visual and olfacto...

journal_title：Journal of chemical ecology

authors： Brévault T,Quilici S

更新日期：2010-03-01 00:00:00

abstract：:A spatial-temporal model for personal computers is developed that simulates trapping of an insect population based on trap and population parameters that can be varied independently. The model allows individual "insects" to move forward at any step size with right or left turns within any specified angle taken at rand...

journal_title：Journal of chemical ecology

authors： Byers JA

更新日期：1993-09-01 00:00:00

abstract：:Larvae of the western flower thrips Frankliniella occidentalis are known to produce an anal droplet containing decyl acetate (10Ac) and dodecyl acetate (12Ac), which act as an alarm pheromone. Analysis by GC showed that the combined mass of 10Ac and 12Ac per droplet increased with age of second instars from 2 ng to 18...

journal_title：Journal of chemical ecology

authors： MacDonald KM,Hamilton JG,Jacobson R,Kirk WD

更新日期：2003-10-01 00:00:00

abstract：:We investigated postpollination changes in fragrance composition and emission rates, as well as pollinator discrimination in hand-pollinated flower heads of two thistle species: Canada thistle (Cirsium arvense) and sandhill thistle (C. repandum). Following pollination, neither species emitted any novel compounds that ...

journal_title：Journal of chemical ecology

authors： Theis N,Raguso RA

更新日期：2005-11-01 00:00:00

abstract：:The species of desert-dwelling ants of the Cataglyphis bicolor (Hymenoptera: Formicidae) group are difficult to distinguish by morphological features. Analysis of the secretion from the Dufour glands of workers of a number of colonies was undertaken to see if it provided a clear test of species. Linked 6c-ms showed in...

journal_title：Journal of chemical ecology

authors： Gökçen OA,Morgan ED,Dani FR,Agosti D,Wehner R

更新日期：2002-01-01 00:00:00

abstract：:Multicomponent pheromone systems are common in many insect species. As our knowledge about the number of different chemical compounds actually involved in a particular communication system increases, so too does the need for an efficient neural mechanism for the encoding of behaviorially relevant odor compounds. Here ...

journal_title：Journal of chemical ecology

authors： O'Connell RJ,Beauchamp JT,Grant AJ

更新日期：1986-02-01 00:00:00

abstract：:The concentration of leaf mono- and sesquiterpenes is greater in nitrate-limited than in nitrate-richHeterotheca subaxillaris plants and is highest in young leaves and declines with leaf age. To determine whether rates of volatile terpene synthesis and/or loss vary with nitrate availability and leaf age, incorporation...

journal_title：Journal of chemical ecology

authors： Mihaliak CA,Lincoln DE

更新日期：1989-05-01 00:00:00

abstract：:(E)-11-Hexadecen-1-yl acetate and (E)-11-hexadecen-1-ol were identified in extracts from the abdominal pheromone gland of femaleSceliodes cordalis and in a 1∶1 ratio acted as a potent field attractant for males. Sustained upwind flight by males to this mixture in a wind tunnel confirmed the identity of these compounds...

journal_title：Journal of chemical ecology

authors： Clearwater JR,Galbreath RA,Benn MH,Young H

更新日期：1986-09-01 00:00:00

abstract：:Root herbivores can indirectly affect aboveground herbivores by altering the food quality of the plant. However, it is largely unknown whether plant genotypes differ in their response to root herbivores, leading to variable defensive phenotypes. In this study, we investigated whether root-feeding insect larvae (Agriot...

journal_title：Journal of chemical ecology

authors： Wurst S,Van Dam NM,Monroy F,Biere A,Van der Putten WH

更新日期：2008-10-01 00:00:00

abstract：:Hydroxamic acids have been shown to be toxic to many pest insects and pathogens. In this study, the behavioral responses of western corn rootworm larvae to naturally occurring and synthetic hydroxamic acids were investigated. In a choice test between corn roots treated with hydroxamic acids and roots treated with dist...

journal_title：Journal of chemical ecology

authors： Xie Y,Arnason JT,Philogéne BJ,Atkinson J,Morand P

更新日期：1992-07-01 00:00:00

abstract：:Chemical communication is a dominant method of communication throughout the animal kingdom and can be especially important in group-living animals in which communicating threats, either from predation or other dangers, can have large impacts on group survival. Social insects, in particular, have evolved a number of ph...

journal_title：Journal of chemical ecology

authors： Norman VC,Butterfield T,Drijfhout F,Tasman K,Hughes WO

更新日期：2017-03-01 00:00:00

abstract：:The fire ant, Solenopsis invicta (Hymenoptera: Formicidae), is considered one of the most aggressive and invasive species in the world. Toxic bait systems are used widely for control, but they also affect non-target ant species and cannot be used in sensitive ecosystems such as organic farms and national parks. The fi...

journal_title：Journal of chemical ecology

authors： Suckling DM,Stringer LD,Bunn B,El-Sayed AM,Vander Meer RK

更新日期：2010-07-01 00:00:00

abstract：:Brassica nigra plants, characterized by high levels of sinigrin, and artificial aphid diets to which sinigrin was selectively added were used to rear the crucifer specialist, Brevicoryne brassicae. Aphids were provided as a food source to two species of polyphagous ladybird, Adalia bipunctata and Coccinella septempunc...

journal_title：Journal of chemical ecology

authors： Pratt C,Pope TW,Powell G,Rossiter JT

更新日期：2008-03-01 00:00:00

abstract：:Optically pure synthetic enantiomers of (E)-conophthorin [(E)-7-methyl-1,6-dioxaspiro[4.5]decane], one of the volatiles affecting coniferophagous bark beetles, were tested on antennae of Ips typographus, I. duplicatus, I. subelongatus, Dendroctonus micans, and five Scolytus spp. by using combined gas chromatography-el...

journal_title：Journal of chemical ecology

authors： Zhang QH,Tolasch T,Schlyter F,Francke W

更新日期：2002-09-01 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

authors： Collignon RM,Cale JA,McElfresh JS,Millar JG

更新日期：2019-03-01 00:00:00

abstract：:HPLC analysis of crude dichloromethane extracts of shaken liquid cultures of the hyphomycetous fungusTolypocladium geodes Gams revealed the presence of efrapeptins. These peptides, which have mitochondrial ATPase inhibitory activity as well as antifungal and insecticidal properties, are previously known only from the ...

journal_title：Journal of chemical ecology

authors： Krasnoff SB,Gupta S

更新日期：1991-10-01 00:00:00

abstract：:Parthenium (Parthenium hysterophorus L.) leaf residue (LP, leaf powder) inhibited salvinia (Salvinia molesta Mitchell) biomass and the number of healthy fronds at 0.25% (w/v) and killed the treated plants at and above 0.75% (w/v) in about 5-15 days, depending on the quantity of the residue. At the lethal dose, the LP ...

journal_title：Journal of chemical ecology

authors： Pandey DK

更新日期：1994-12-01 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

authors： Morse D,Meighen EA

更新日期：1990-05-01 00:00:00

abstract：:A sequence of reactions is presented for inverting the configurations of both epoxide carbons in 1,2-disubstituted epoxides. As examples, (+)-disparlure was converted to its enantiomer, (-)-disparlure, andexo-endo conversion of a cyclohexene oxide was demonstrated. ...

journal_title：Journal of chemical ecology

authors： Oliver JE,Waters RM,Harrison DJ

更新日期：1996-02-01 00:00:00

abstract：:Individual families of gypsy moth collected from a single population exhibited different degrees of fitness when fed diets of white alder, a suitable broadleaf host, and Douglas-fir, an unsuitable conifer host. Members of families on diets of Douglas-fir had significantly lower survival, longer larval periods, lower p...

journal_title：Journal of chemical ecology

authors： Joseph G,Miller JC,Berry RE,Wernz J,Moldenke AF,Kelsey RG

更新日期：1991-09-01 00:00:00

abstract：:We investigated the plume structure of a piezo-electric sprayer system, set up to release ethanol in a wind tunnel, using a fast response mini-photoionizaton detector. We recorded the plume structure of four different piezo-sprayer configurations: the sprayer alone; with a 1.6-mm steel mesh shield; with a 3.2-mm steel...

journal_title：Journal of chemical ecology

authors： Girling RD,Cardé RT

更新日期：2007-10-01 00:00:00

abstract：:Extracts of glandular trichomes from Medicago sativa were tested for their ability to disrupt the settling behavior of the potato leafhopper, Empoasca fabae. Erect and procumbent glandular trichomes were mechanically isolated from stem sections of resistant genotype "G98A," and nonglandular trichomes were collected fr...

journal_title：Journal of chemical ecology

authors： Ranger CM,Backus EA,Winter RE,Rottinghaus GE,Ellersieck MR,Johnson DW

更新日期：2004-05-01 00:00:00

abstract：:The significance of the geminal dimethyl group at C-6 of (+)-trans-veibenyl acetate (Ib), a sex pheromone mimic of the American cockroach, was investigated. Our interest was first directed to eliminating either methyl group of the geminal dimethyl group. Consequently, alcohols (IIIa and IVa) possessing a monomethyl gr...

journal_title：Journal of chemical ecology

authors： Manabe S,Takayanagi H,Nishino C

更新日期：1983-04-01 00:00:00

abstract：:DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one), a secondary metabolite found in cereal extracts, confers resistance in wheat to aphids. Its effect on beneficial organisms was tested on larvae of the aphid predatorEriopis connexa Germar. Larvae were fed until pupation on artificial diets to which different conce...

journal_title：Journal of chemical ecology

authors： Martos A,Givovich A,Niemeyer HM

更新日期：1992-03-01 00:00:00

abstract：:Plants perceive insect herbivores via a sophisticated surveillance system that detects a range of alarm signals, including herbivore-associated molecular patterns (HAMPs). Fatty acid-amino acid conjugates (FACs) are HAMPs present in oral secretions (OS) of lepidopteran larvae that induce defense responses in many plan...

journal_title：Journal of chemical ecology

authors： Grissett L,Ali A,Coble AM,Logan K,Washington B,Mateson A,McGee K,Nkrumah Y,Jacobus L,Abraham E,Hann C,Bequette CJ,Hind SR,Schmelz EA,Stratmann JW

更新日期：2020-03-01 00:00:00