Alkyl ether and enol ether analogs of (Z)-5-decenyl acetate, a pheromone component of the turnip moth,Agrotis segetum: probing a proposed bioactive conformation for chain-elongated analogs.

abstract：:We examined the interaction between host trees and fungi associated with a tree-killing bark beetle, Dendroctonus frontalis. We evaluated (1) the response of four Pinus species to fungal invasion and (2) the effects of plant secondary metabolites on primary growth of and secondary colonization of three consistent fung...

journal_title：Journal of chemical ecology

authors： Hofstetter RW,Mahfouz JB,Klepzig KD,Ayres MP

更新日期：2005-03-01 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：:Electroantennogram techniques were used to elucidate antennal olfactory response of male and female boll weevils to a dilution series of grandlure, its components, and some vicinal dimethyl analogs. At higher concentrations, response to the mixture of the two aldehyde components of grandlure was significantly higher t...

journal_title：Journal of chemical ecology

authors： Gutmann A,Payne TL,Roberts EA,Schulte-Elte KH,Giersch W,Ohloff G

更新日期：1981-11-01 00:00:00

abstract：:Volatile monoterpenes such as 1,8-cineole inhibit the growth of Brassica campestris seedlings in a dose-dependent manner, and the growth-inhibitory effects are more severe for roots than hypocotyls. The preferential inhibition of root growth may be explained if the compounds inhibit cell proliferation more severely th...

journal_title：Journal of chemical ecology

authors： Yoshimura H,Sawai Y,Tamotsu S,Sakai A

更新日期：2011-03-01 00:00:00

abstract：:The protein-precipitating capacities of tanniferous extracts from immature and mature leaves of threeShorea spp. (Dipterocarpaceae) seedlings were measured by an adaptation of Goldstein and Swain's β-glucosidase precipitation assay. Protein precipitation by the extracts was not correlated with total phenolics (Folin-D...

journal_title：Journal of chemical ecology

authors： Becker P,Martin JS

更新日期：1982-11-01 00:00:00

abstract：:Aggregation pheromones were isolated fromCryptolestes pusillus (Schönherr), a coleopteran pest of stored products. Porapak Q-captured beetle and frass volatiles were fractionated by preparative gas-liquid chromatography. The fractions were bioassayed with an arena olfactometer and/or with a two-choice, pitfall olfacto...

journal_title：Journal of chemical ecology

authors： Millar JG,Pierce HD Jr,Pierce AM,Oehlschlager AC,Borden JH,Barak AV

更新日期：1985-08-01 00:00:00

abstract：:Courtship inCardiochiles nigriceps (Viereck) (Hymenoptera: Braconidae) involves male attraction to females and male antennation of females followed by mounting and copulation. Once the female is located, antennation and mounting of the female are mediated by the hydrocarbon fraction of female's Dufour's gland and cuti...

journal_title：Journal of chemical ecology

authors： Syvertsen TC,Jackson LL,Blomquist GJ,Vinson SB

更新日期：1995-12-01 00:00:00

abstract：:Several chemical modifications of a synthetic fermented egg (SFE) lure were field tested on free-ranging coyotes (Canis latrans) to determine the effects of odor intensity and quality on their behavioral responses. SFE was modified for testing by (1) enhancing one of the four basic odor components (fruity, sulfurous, ...

journal_title：Journal of chemical ecology

authors： Bullard RW,Turkowski FJ,Kilburn SR

更新日期：1983-07-01 00:00:00

abstract：:Castilleja (Scrophulariaceae) species of the western United States contain pyrrolizidine and quinolizidine alkaloids. TheCastilleja obtain the alkaloids by root parasitism on host plants, withSenecio atratus andS. triangularis (Asteraceae) furnishing the pyrrolizidines, and quinolizidines being obtained fromLupinus sp...

journal_title：Journal of chemical ecology

authors： Stermitz FR,Harris GH

更新日期：1987-08-01 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

authors： Barbour JD,Kennedy GG

更新日期：1991-05-01 00:00:00

abstract：:Larvae of Heliconius butterflies (Nymphalidae: Heliconiinae) feed exclusively on cyanogenic leaves of Passiflora (passion vine). Most Heliconius manufacture cyanogenic glycosides (cyanogens) and some species sequester cyanogens from host plants. We compare ability to sequester simple monoglycoside cyclopentenyl (SMC) ...

journal_title：Journal of chemical ecology

authors： Engler-Chaouat HS,Gilbert LE

更新日期：2007-01-01 00:00:00

abstract：:Effects of 2-beta-D-glucopyranosyloxy-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA-Glc) and DIMBOA-Glc N-O-methylated (HDMBOA-Glc), two compounds present in high concentration in maize, were tested on the aphid Metopolophium dirhodum reared on artificial diet. HDMBOA-Glc and DIMBOA-Glc decrease survival of adults ...

journal_title：Journal of chemical ecology

authors： Cambier V,Hance T,De Hoffmann E

更新日期：2001-02-01 00:00:00

abstract：:Electroantennograms (EAGs) were recorded from male and female moths of two sympatric leaf folder species,Cnaphalocrocis medinalis (Gue-née) andMarasmia patnalis Bradley (Lepidoptera: Pyralidae) to 91 volatile chemicals of plant origin. Responses of both leaf folder species were similar to all compounds except to three...

journal_title：Journal of chemical ecology

authors： Ramachandran R,Khan ZR,Caballero P,Juliano BO

更新日期：1990-09-01 00:00:00

abstract：:Four litters of king snakes (Lampropeltis getulus), a snake-eating species, were tested for responses to chemicals from colubrid and crotaline snakes. King snakes presented with swabs rubbed against the dorsal skin of living snakes and with swabs treated with methylene chloride extracts of shed snake skins tongue-flic...

journal_title：Journal of chemical ecology

authors： Weldon PJ,Schell FM

更新日期：1984-10-01 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

authors： Tolosa TA,Tamiru A,Midega CAO,Van Den Berg J,Birkett MA,Woodcock CM,Bruce TJA,Kelemu S,Pickett JA,Khan ZR

更新日期：2019-12-01 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：:The effect of protein and birch bark powder (BBP) content of forage on detoxification capacity of root voles (Microtus oeconomus) was studied. Young voles were fed with eight different diets for two weeks. Individuals on low (3%) protein diets had significantly lighter livers and kidneys than those on moderate (6%) or...

journal_title：Journal of chemical ecology

authors： Harju A

更新日期：1996-04-01 00:00:00

abstract：:Although several studies have elucidated the role of plant epicuticular waxes in host recognition and oviposition by herbivorous insects, there is little known about this subject in Chrysomelidae. In the present study, chemical cues for host recognition behavior and oviposition by the monophagous chrysomelid species C...

journal_title：Journal of chemical ecology

authors： Müller C,Hilker M

更新日期：2001-05-01 00:00:00

abstract：:Bioassays were carried out to test extracts of roots and leaves ofPiqueria trinervia and solutions of piquerol A and B, in order to appraise their allelopathic potential. Leaves seem to have greater concentrations of inhibitory compounds than roots. Both piquerol compounds show strong biological activity, but piquerol...

journal_title：Journal of chemical ecology

authors： De La Parra MG,Anaya AL,Espinosa F,Jiménez M,Castillo R

更新日期：1981-05-01 00:00:00

abstract：:The leading hypothesis for the evolution of the metal hyperaccumulation trait in plants is as a defense against herbivores. A central piece of evidence expected for this hypothesis is that plants benefit from herbivores being deterred from eating high metal tissues. While many studies have investigated whether or not ...

journal_title：Journal of chemical ecology

authors： Vesk PA,Reichman SM

更新日期：2009-03-01 00:00:00

abstract：:The ability to cope with plant defense chemicals differs between specialist and generalist species. In this study, we examined the effects of the concentration of the two main iridoid glycosides (IGs) in Plantago lanceolata, aucubin and catalpol, on the performance of a specialist and two generalist herbivores and the...

journal_title：Journal of chemical ecology

authors： Reudler JH,Biere A,Harvey JA,van Nouhuys S

更新日期：2011-07-01 00:00:00

abstract：:Mammalian scent marking is often associated with territorial defense. However, males and females may demonstrate different activity patterns and play different roles. Female mammals nurture the young during lactation, while males purportedly perform other tasks more frequently, such as territorial maintenance and defe...

journal_title：Journal of chemical ecology

authors： Rosell F,Thomsen LR

更新日期：2006-06-01 00:00:00

abstract：:Plants that contain elevated foliar metal concentrations can be categorized as accumulators or, if the accumulation is extreme, hyperaccumulators. The defense hypothesis suggests that these plants may be defended against folivore attack, and recent research has indicated that metal concentrations at or below the accum...

journal_title：Journal of chemical ecology

authors： Jhee EM,Boyd RS,Eubanks MD

更新日期：2006-02-01 00:00:00

abstract：:The feasibility of using the synthetic sex pheromone, disparlure, as a mating confusant of the nun moth (Lymantria monacha L.) was investigated on wild populations occurring in outbreak proportions in Poland and in low density in Czechoslovakia. The size of experimental plots ranged from 1 to 12 hectares. The amounts ...

journal_title：Journal of chemical ecology

authors： Zďárek J,Vrkoč J,Hochmut R,Kolk A

更新日期：1988-02-01 00:00:00

abstract：:The vast spectrum of inducible plant defenses can have direct negative effects on herbivores, or indirect effects, for instance in the form of herbivore-induced plant volatiles (HIPVs) that attract natural enemies. Various arthropods have evolved ways to suppress plant defenses. To test whether this is the case for ca...

journal_title：Journal of chemical ecology

authors： De Lange ES,Laplanche D,Guo H,Xu W,Vlimant M,Erb M,Ton J,Turlings TCJ

更新日期：2020-03-01 00:00:00

abstract：:The larva of codling moth Cydia pomonella (Tortricidae, Lepidoptera) is known as the worm in the apple, mining the fruit for food. We here show that codling moth larvae are closely associated with yeasts of the genus Metschnikowia. Yeast is an essential part of the larval diet and further promotes larval survival by r...

journal_title：Journal of chemical ecology

authors： Witzgall P,Proffit M,Rozpedowska E,Becher PG,Andreadis S,Coracini M,Lindblom TU,Ream LJ,Hagman A,Bengtsson M,Kurtzman CP,Piskur J,Knight A

更新日期：2012-08-01 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

authors： Muscolo A,Sidari M,Francioso O,Tugnoli V,Nardi S

更新日期：2007-01-01 00:00:00

abstract：:Cardenolides are classically studied steroidal defenses in chemical ecology and plant-herbivore coevolution. Although milkweed plants (Asclepias spp.) produce up to 200 structurally different cardenolides, all compounds seemingly share the same well-characterized mode of action, inhibition of the ubiquitous Na+/K+ ATP...

journal_title：Journal of chemical ecology

authors： Züst T,Petschenka G,Hastings AP,Agrawal AA

更新日期：2019-01-01 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：:The cardenolide content of the gut, wings, and fat body ofOncopeltus fasciatus was examined. The female fat body contained 4-5% of the total cardenolide content of the insect. The cardenolide content of male fat body, and gut and wings of both sexes was below the detection limit of the cardenolide assay. Thin-layer ch...

journal_title：Journal of chemical ecology

authors： Moore LV,Scudder GG

更新日期：1985-05-01 00:00:00