The role of monoterpenes in resistance of Douglas fir to western spruce budworm defoliation.

abstract：:Fertile queens of the antMonomorium pharaonis produce a chemical substance which is not present in worker ants or in young, alate (virgin) queens. The material has been identified as (E,E,E)-1-isopropenyl-4,8,12-trimethylcyclotetradeca-3,7,11-triene (neocembrene). This chemical is produced in the Dufour's gland of fer...

journal_title：Journal of chemical ecology

authors： Edwards JP,Chambers J

更新日期：1984-12-01 00:00:00

abstract：:Analysis of the volatile compounds derived from cephalic glands of the fire beeTrigona (Oxytrigona) tataira by GC-MS was undertaken. The following compounds were readily identified: hydrocarbons:n-C11H24,n-C13H28,n-C14H30,n-C15H32,n-C17H36,n-C23H48,n-C15H30,n-C17H34,n-C21 H42, andn-C23H46; carboxylic acids: palmitic a...

journal_title：Journal of chemical ecology

authors： Bian Z,Fales HM,Blum MS,Jones TH,Rinderer TE,Howard DF

更新日期：1984-03-01 00:00:00

abstract：:Three allelochemicals from rye or its breakdown products were evaluated for activity on garden cress (Lepidum sativum L.), barnyardgrass [Echinochloa crus-galli (L.) Beauv.], cucumber (Cucumis sativus L.), and snap bean (Phaseolus vulgaris L.). 2,4-Dihydroxy-1,4(2H)-benzoxazin-3-one (DIBOA), 2(3H)-benzoxazolinone (BOA...

journal_title：Journal of chemical ecology

authors： Chase WR,Nair MG,Putnam AR

更新日期：1991-01-01 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：:Olfactory reception of potential pheromones and host-plant odors by male and female tarnished plant bugs (TPBs),Lygus lineolaris (Hemiptera: Miridae), was investigated by utilizing electroantennogram (EAG) techniques. In general, EAGs were similar between the sexes. Among 31 compounds of seven chemical groups tested, ...

journal_title：Journal of chemical ecology

authors： Chinta S,Dickens JC,Aldrich JR

更新日期：1994-12-01 00:00:00

abstract：:In addition to 2-methyl-4-heptanone, 6-methyl-5-hepten-2-one, and iridodials, the anal gland exudate of the dolichoderine ant,Tapinoma simrothi, contains 4-heptanone and 4-hydroxy-4-methyl-2-pentanone. The secretion functions as an alarm pheromone. ...

journal_title：Journal of chemical ecology

authors： Hefetz A,Lloyd HA

更新日期：1983-05-01 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：: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：:Bracon hebetor is a larval ectoparasitoid that utilizes several pests belonging to the family Pyralidae (Lepidoptera) as hosts. In the present study, we analyzed the kairomonal response of this wasp to the male-produced sex pheromone of a host, the greater wax moth Galleria mellonella, an economically important pest o...

journal_title：Journal of chemical ecology

authors： Dweck HK,Svensson GP,Gündüz EA,Anderbrant O

更新日期：2010-02-01 00:00:00

abstract：:The egg dispersion strategy of the olive fruit flyDacus oleae, which is dependent on chemicals from the fruit, was investigated. In particular, the exact role ofo-diphenolic compounds, such as the typical olive glucosides, oleuropein and demethyloleuropein, and their derivatives was clarified. It appears that the stro...

journal_title：Journal of chemical ecology

authors： Lo Scalzo R,Scarpati ML,Verzegnassi B,Vita G

更新日期：1994-08-01 00:00:00

abstract：:Analysis ofChelone glabra (Scrophulariaceae) by gas chromatography showed that leaves of this plant contained primarily the iridoid glycoside catalpol, and in a few individuals some aucubin was also detected. There was no difference in the iridoid glycoside content of damaged compared to undamaged plants, nor was ther...

journal_title：Journal of chemical ecology

authors： Bowers MD,Boockvar K,Collinge SK

更新日期：1993-04-01 00:00:00

abstract：:Individual analysis of the female sex pheromone of the adzuki bean borer, Ostrinia scapulalis, has shown that the sex pheromone of this species comprised (E)-11-tetradecenyl acetate (E11-14:OAc) and (Z)-11-tetradecenyl acetate (Z11-14:OAc) at variable blend ratios. The pheromone blend could be tentatively categorized ...

journal_title：Journal of chemical ecology

authors： Huang Y,Takanashi T,Hoshizaki S,Tatsuki S,Ishikawa Y

更新日期：2002-03-01 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

authors： Nordlund DA,Ed Sauls C

更新日期：1981-11-01 00:00:00

abstract：:The role of volatile infochemicals emitted by feces of larvae in the host-searching behavior of the parasitoidCotesia rubecula was evaluated during single- and dual-choice tests inside a wind tunnel. The following treatments were tested: feces produced by second and fourth instars ofPieris rapae (preferred host), seco...

journal_title：Journal of chemical ecology

authors： Agelopoulos NG,Dicke M,Posthumus MA

更新日期：1995-11-01 00:00:00

abstract：:The attractiveness of different synthetic host odors and a synthetic aggregation pheromone (grandisoic acid [GA]) to overwintered adult plum curculios (PCs), Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae), was examined using two types of traps (sticky panels and black pyramids) placed in border areas surr...

journal_title：Journal of chemical ecology

authors： Piñero JC,Prokopy RJ

更新日期：2003-12-01 00:00:00

abstract：:Conifers possess a suite of physiochemical defenses that protect their subcortical tissues from bark beetle - fungal complexes. These defenses include rapid induction of terpenoids and phenolics at the site of attack. Studies of the distribution, induction, and bioactivity of conifer terpenoids have focused heavily on...

journal_title：Journal of chemical ecology

authors： Mason CJ,Klepzig KD,Kopper BJ,Kersten PJ,Illman BL,Raffa KF

更新日期：2015-06-01 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：:Global climate change includes concomitant changes in many components of the abiotic flux necessary for plant life. In this paper, we investigate the combined effects of elevated CO2 (720 ppm) and temperature (+2 K) on the phytochemistry of three deciduous tree species. The analysis revealed that elevated CO(2) genera...

journal_title：Journal of chemical ecology

authors： Veteli TO,Mattson WJ,Niemelä P,Julkunen-Tiitto R,Kellomäki S,Kuokkanen K,Lavola A

更新日期：2007-02-01 00:00:00

abstract：:A strain of the fungus Fusarium equiseti isolated from soybean cyst nematode secretes nematode-antagonistic compounds. Bioassay-guided fractionation of an extract of the culture broth was undertaken to identify the compounds. Fractions were assayed for activity against a root-knot nematode (Meloidogyne incognita), a p...

journal_title：Journal of chemical ecology

authors： Nitao JK,Meyer SL,Schmidt WF,Fettinger JC,Chitwood DJ

更新日期：2001-05-01 00:00:00

abstract：:Using traps baited with natural and synthetic onion volatiles, we examined the effects of different habitats and mating on the olfactory behavior of laboratory-reared and wild onion flies. Rankings of olfactory treatments as host-finding stimuli for females were dependent on their mating status and the habitat in whic...

journal_title：Journal of chemical ecology

authors： Judd GJ,Borden JH

更新日期：1992-04-01 00:00:00

abstract：:Stingless bees (Apidae: Meliponini) are the most diverse group of Apid bees and represent common pollinators in tropical ecosystems. Like honeybees they live in large eusocial colonies and rely on complex chemical recognition and communication systems. In contrast to honeybees, their ecology and especially their chemi...

journal_title：Journal of chemical ecology

authors： Leonhardt SD,Blüthgen N,Schmitt T

更新日期：2011-01-01 00:00:00

abstract：:The soldier frontal gland secretion ofNasutitermes princeps induces strong short-range caste-specific alarm and attraction in both soldiers and workers. Soldiers are excited and patrol the surroundings of the source. The secretion per se does not induce ejection of additional secretion. Large workers of the second sta...

journal_title：Journal of chemical ecology

authors： Roisin Y,Everaerts C,Pasteels JM,Bonnard O

更新日期：1990-10-01 00:00:00

abstract：:Volatile lipids from the mandibular gland secretions of bees (Hymenoptera: Apoidea) are potent olfactory repellents of foraging ants (Formica, Crematogaster) in biologically relevant contexts and quantities. In contrast, differential success in capture of bee and fly prey by predatory asilid flies (Efferia), reduviid ...

journal_title：Journal of chemical ecology

authors： Cane JH

更新日期：1986-06-01 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：:Volatile chemicals produced by plants mediate host location, mate-finding and oviposition behavior in insects. State-dependent response to plant cues allows for timing of foraging, mating and oviposition on ephemeral host plants or plant parts. Caloptilia fraxinella is a herbivorous specialist on the foliage of ash tr...

journal_title：Journal of chemical ecology

authors： Lemmen-Lechelt JK,Wist TJ,Evenden ML

更新日期：2018-03-01 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：: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

authors： Mazomenos BE,Haniotakis GE

更新日期：1985-03-01 00:00:00

abstract：:The structure elucidation of sex pheromones of Lepidoptera by a solid-sample injection technique in conjunction with capillary gas chromatography is described. The applicability of this method in GC and GC-MS modes was demonstrated by reanalyzing the sex attractants of females ofOstrinia nubilalis andBombyx mori. The ...

journal_title：Journal of chemical ecology

authors： Attygalle AB,Herrig M,Vostrowsky O,Bestmann HJ

更新日期：1987-05-01 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：:Recent studies have shown the occurrence of plant derived pyrrolizidine alkaloids (PAs) in retail honeys and pollen loads, but little is known about how these compounds influence the fitness of foraging honey bees. In feeding experiments, we tested a mix of tertiary PAs and the corresponding N-oxides from Senecio vern...

journal_title：Journal of chemical ecology

authors： Reinhard A,Janke M,von der Ohe W,Kempf M,Theuring C,Hartmann T,Schreier P,Beuerle T

更新日期：2009-09-01 00:00:00