Phenol contents, oxidase activities, and the resistance of coffee to the leaf miner Leucoptera coffeella.

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：:Investigation of the lipid extract of the Australian chrysomelid beetle,Monolepta australis, has revealed a novel homologous series of long-chain, unsaturated-saturated dialkyl ethers in the cuticular wax. Gas chromatography-mass spectrometry, proton magnetic resonance, infrared spectroscopy, and chemical degradation ...

journal_title：Journal of chemical ecology

authors： Southwell IA,Stiff IA

更新日期：1989-01-01 00:00:00

abstract：:Two applications of isolates ofPaecilomyces marquandii from suppressive chinampa soils or P. lilacinus from Peru, fungi that parasitize nematode eggs, generally gave better control of tomato root-knot due toMeloidogyne incognita than did a single application. The effects on root galling by each of thePaecilomyces isol...

journal_title：Journal of chemical ecology

authors： Marban-Mendoza N,Garcia-E R,Dicklow MB,Zuckerman BM

更新日期：1992-05-01 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：:Secondary metabolites produced by endophytic microorganisms can provide benefits to host plants, such as stimulating growth and enhancing the plant's resistance toward biotic and abiotic factors. During its life, a host plant may be inhabited by many species of endophytes within a restrictive environment. This conditi...

journal_title：Journal of chemical ecology

authors： Chagas FO,Dias LG,Pupo MT

更新日期：2013-10-01 00:00:00

abstract：:Larvae ofDanaus plexippus feed almost exclusively on milkweed species of the genusAsclepias, whose characteristic secondary metabolites are cardiac glycosides (CGs). Aposematic last-instar larvae were fed with ouabain and other cardiac glycosides of differing polarities. Time course experiments show that ouabain is se...

journal_title：Journal of chemical ecology

authors： Frick C,Wink M

更新日期：1995-05-01 00:00:00

abstract：:We focus this mini-review on how naturally occurring chemical cues mediate ecological interactions, especially interspecific competition and predation in freshwater communities. Although freshwater chemical ecology lags behind terrestrial and marine chemical ecology, we identify recent progress toward: (1) identifying...

journal_title：Journal of chemical ecology

authors： Burks RL,Lodge DM

更新日期：2002-10-01 00:00:00

abstract：:The chemical compositions of anal sac secretions of seven mustelid species were examined by thin-layer chromatography, gas chromatography, and mass spectrometry. The analyses showed great similarities between species belonging to the genusMustela, i.e.,M. erminea,M. nivalis,M. vison, andM. putorius, whereasMaries mart...

journal_title：Journal of chemical ecology

authors： Brinck C,Erlinge S,Sandell M

更新日期：1983-06-01 00:00:00

abstract：:Male pink bollworm,Pectinophora gossypiella, were tested in a sustained flight tunnel to 119 blend-dosage combinations of the sex pheromone components, (Z,Z)- and (Z,E)-7,11-hexadecadienyl acetates, which are released by conspecific females in a 61∶39 ratio. Hierarchical cluster analysis was used to define an area of ...

journal_title：Journal of chemical ecology

authors： Linn CE Jr,Roelofs WL

更新日期：1985-11-01 00:00:00

abstract：:The genetic nature of pheromone variation within species has rarely been studied, and never for male-produced long-range pheromones. Males from western North American populations of Ips pini produce predominantly (R)-(-)-ipsdienol, whereas those from eastern North American populations produce higher proportions of (S)...

journal_title：Journal of chemical ecology

authors： Domingue MJ,Starmer WT,Teale SA

更新日期：2006-05-01 00:00:00

abstract：:In field experiments in the Okanagan Valley, British Columbia, the pheromone blend of (11Z)-tetradecen-1-ol acetate (Z11-14:OAc), (11E)-tetradecen-1-ol acetate (E 11-14:OAc), (9Z)-tetradecen-1-ol acetate (Z9-14:OAc) and dodecan-1-ol acetate (12: OAc) at a 100∶64∶2∶1 ratio (western FTLR blend) attracted significantly m...

journal_title：Journal of chemical ecology

authors： Deland JP,Gries R,Gries G,Judd GJ,Roitberg BD

更新日期：1993-12-01 00:00:00

abstract：:In bioassays conducted with walking beetles in the laboratory (S)-(+)-, (R)-(-)-, and (±)-ipsdienol were attractive alone, but reduced the attraction of both sexes of the mountain pine beetle,Dendroctonus ponderosae Hopkins, to extracts of female frass. Field trapping studies indicated that attraction ofD. ponderosae ...

journal_title：Journal of chemical ecology

authors： Hunt DW,Borden JH

更新日期：1988-01-01 00:00:00

abstract：:Certain insect species can induce gall formation on numerous plants species. Although the mechanism of gall development is largely unknown, it is clear that insects manipulate their hosts' anatomy, physiology, and chemistry for their own benefit. It is well known that insect-induced galls often contain vast amounts of...

journal_title：Journal of chemical ecology

authors： Rand K,Bar E,Ari MB,Davidovich-Rikanati R,Dudareva N,Inbar M,Lewinsohn E

更新日期：2017-02-01 00:00:00

abstract：:Sirex noctilio females are known to be attracted to stem sections of stressed pine trees for oviposition. The volatile profiles and attractiveness of Eastern white pine (Pinus strobus) and two chemotypes of Scots pine (P. sylvestris) were compared after stem injection with herbicide. In general, trap captures on herbi...

journal_title：Journal of chemical ecology

authors： Böröczky K,Zylstra KE,McCartney NB,Mastro VC,Tumlinson JH

更新日期：2012-02-01 00:00:00

abstract：:The effect of volatiles of diethyl ether-extracted dominant male mouse lemur urine on conspeciflc testosterone plasma concentrations was determined in an apparatus permitting olfactory isolation of the experimental subjects. Two experimental groups were exposed to air odorized with either ether or aqueous extracts of ...

journal_title：Journal of chemical ecology

authors： Perret M,Schilling A

更新日期：1987-03-01 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

authors： Seifelnasr YE,Hopkins TL,Mills RB

更新日期：1982-12-01 00:00:00

abstract：:The enantiomers of analogs of (Z)-5-decenyl acetate, a pheromone component ofAgrotis segetum, substituted by a methyl group in the 2, 3, 4, 7, and 8 positions and dimethyl substituted in the 4,7 positions, have been synthesized and studied by an electrophysiological single-cell technique and by molecular mechanics cal...

journal_title：Journal of chemical ecology

authors： Jönsson S,Malmström T,Liljefors T,Hansson BS

更新日期：1993-03-01 00:00:00

abstract：:Phorodon humuli (Damson-hop aphid) is one of the major pests of hops in the northern hemisphere. It causes significant yield losses and reduces hop quality and economic value. Damson-hop aphid is currently controlled with insecticides, but the number of approved pesticides is steadily decreasing. In addition, the use ...

journal_title：Journal of chemical ecology

authors： Undas AK,Weihrauch F,Lutz A,van Tol R,Delatte T,Verstappen F,Bouwmeester H

更新日期：2018-08-01 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：:Cuticular hydrocarbons are among the prime candidates for nestmate recognition in social insects. We analyzed the variation of cuticular hydrocarbons in the termite species M. subhyalinus in West Africa (Comoë National Park) on a small spatial scale (< 1 km). We found considerable variation in the composition of cutic...

journal_title：Journal of chemical ecology

authors： Kaib M,Jmhasly P,Wilfert L,Durka W,Franke S,Francke W,Leuthold RH,Brandl R

更新日期：2004-02-01 00:00:00

abstract：:We analyzed phenolic compounds and other elements in leaf extracts and compared morphology of three species of the Phytolaccaceae family found in South Korea. To test allelochemical effects of the three Phytolacca species, we also examined seed germination and dry weight of seedlings of Lactuca indica and Sonchus oler...

journal_title：Journal of chemical ecology

authors： Kim YO,Johnson JD,Lee EJ

更新日期：2005-05-01 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

authors： Leal WS,Oehlschlager AC,Zarbin PH,Hidalgo E,Shannon PJ,Murata Y,Gonzalez L,Andrade R,Ono M

更新日期：2003-01-01 00:00:00

abstract：:Dendroctonus ponderosae Hopkins andIps paraconfusus Lanier of both sexes produced most of their complement of terpene alcohols at normal to elevated levels in the absence of readily culturable microorganisms. However, there was some evidence that microbial involvement may be required by maleI. paraconfusus to produce ...

journal_title：Journal of chemical ecology

authors： Hunt DW,Borden JH

更新日期：1989-05-01 00:00:00

abstract：:Lizards communicate with others via chemical signals, the composition of which may vary among species. Although the selective pressures and constraints affecting chemical signal diversity at the species level remain poorly understood, the possible role of diet has been largely neglected. The chemical signals of many l...

journal_title：Journal of chemical ecology

authors： Baeckens S,García-Roa R,Martín J,Van Damme R

更新日期：2017-09-01 00:00:00

abstract：:The promethea moth Callosamia promethea is one of three species of silkmoths from the genus Callosamia that occur in North America. Cross attraction of males to heterospecific calling females has been observed in the field, and hybrid progeny have been produced by pairing heterospecifics in captivity. These observatio...

journal_title：Journal of chemical ecology

authors： Gago R,Allison JD,McElfresh JS,Haynes KF,McKenney J,Guerrero A,Millar JG

更新日期：2013-10-01 00:00:00

abstract：:Phytotoxicity-directed extraction and fractionation of the aerial parts of Mikania micrantha H.B.K. led to the isolation and identification of three sesquiterpenoids: dihydromikanolide, deoxymikanolide, and 2,3-epoxy-1-hydroxy-4,9-germacradiene-12,8:15,6-diolide. These sesquiterpenoids inhibited both germination and s...

journal_title：Journal of chemical ecology

authors： Shao H,Peng S,Wei X,Zhang D,Zhang C

更新日期：2005-07-01 00:00:00

abstract：:Roots of the carrot cultivars Vertou L.D. (resistant) and Long Chantenay (susceptible) were subjected to detailed chemical analysis to identify extracts and compounds influencing larval host-finding (preference/non-preference) behavior and to compare concentrations of these compounds in resistant and susceptible culti...

journal_title：Journal of chemical ecology

authors： Maki A,Kitajima J,Abe F,Stewart G,Ryan MF

更新日期：1989-06-01 00:00:00

abstract：:The field responses of English populations of the Dutch elm disease vectors,Scolytus multistriatus andS. scolytus to baits containing 4-methyl-3-heptanol, a host synergist [(-)-α-cubebene or (-)-limonene] and (±)-α-, (+)-β-, (-)-β-, (±)-γ-, or (±)-δ-multistriatin were examined. (±)-α-Multistriatin, released at 5-10 μg...

journal_title：Journal of chemical ecology

authors： Blight MM,Fielding NJ,King CJ,Ottridge AP,Wadhams LJ,Wenham MJ

更新日期：1983-01-01 00:00:00

abstract：:Insects are the largest and most diverse group of organisms on earth, with over 1,000,000 species identified to date. Stick insects ("walkingsticks" or "phasmids", Order Phasmatodea) are known for and name-derived from their camouflage that acts as a primary line of defense from predation. However, many species also p...

journal_title：Journal of chemical ecology

authors： Dossey AT,Whitaker JM,Dancel MC,Vander Meer RK,Bernier UR,Gottardo M,Roush WR

更新日期：2012-09-01 00:00:00

abstract：:Broad bean plants (Viciafaba) infested by the pea aphid, Acyrthosiphonpisum, play akey role in the in-flightorientation of the parasitoidAphidius ervi, by producing host-induced synomones (HIS). These volatiles are herbivore-specific and are systemically released from insect-free parts of an infested plant, suggesting...

journal_title：Journal of chemical ecology

authors： Guerrieri E,Poppy GM,Powell W,Rao R,Pennacchio F

更新日期：2002-09-01 00:00:00