Byrsonic acid--the clue to floral mimicry involving oil-producing flowers and oil-collecting bees.

abstract：:Olfactory responses of the cereal stemborer parasitoid Cotesia sesamiae to volatiles emitted by gramineous host and nonhost plants of the stemborers were studied in a Y-tube olfactometer. The host plants were maize (Zea mays) and sorghum (Sorghum bicolor), while the nonhost plant was molasses grass (Melinis minutiflor...

journal_title：Journal of chemical ecology

authors： Gohole LS,Overholt WA,Khan ZR,Pickett JA,Vet LE

更新日期：2003-03-01 00:00:00

abstract：:Synthetic pheromone was released from a dispenser stretched across the width of a wind tunnel. Beetles in pheromone-free wind wandered in all directions and did not appear to orient to the wind. A dosage series showed that pheromone decreased the walking rate and deviations from the upwind direction, and it increased ...

journal_title：Journal of chemical ecology

authors： Patrick Akers R,Wood DL

更新日期：1989-04-01 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：:Cucumber seeds and seedlings at various ages (7-19 days old) were treated with a single treatment or multiple treatments (at 2-day intervals) of ferulic acid in nutrient culture. Ferulic acid treatments of cucumber seeds during stages of germination and radicle growth did not significantly reduce subsequent seedling g...

journal_title：Journal of chemical ecology

authors： Blum U,Dalton BR

更新日期：1985-03-01 00:00:00

abstract：:Root exudates of 100 cultivars ofSorghum bicolor L. (Moench) were screened for their ability to inhibit seed germination and seedling growth ofAmaranthus retroflexus L. Exudates of some of the test cultivars were found to inhibit significantly seed germination and/or seedling growth ofA. retroflexus, and most of the i...

journal_title：Journal of chemical ecology

authors： Alsaadawi IS,Al-Uqaili JK,Alrubeaa AJ,Al-Hadithy SM

更新日期：1986-01-01 00:00:00

abstract：:The iridoid glucoside, antirrhinoside, is constitutively distributed throughout Antirrhinum majus L. in a manner consistent with its possible role as an allelochemical, but there is no evidence that it has a defensive function with respect to insect herbivory. To address this question, two generalist herbivores, Lyman...

journal_title：Journal of chemical ecology

authors： Beninger CW,Cloutier RR,Grodzinski B

更新日期：2008-05-01 00:00:00

abstract：:FourEscherichia coli strains carrying all the possible combinations of genes controlling sensitivity to near-UV (NUV;nur versusnur (+)) and far-UV (FUV;uvrA6 versusuvrA (+)) were inactivated with broad-spectrum NUV together with specific phototoxins. The inactivation kinetics of the four strains are consistent with th...

journal_title：Journal of chemical ecology

authors： Tuveson RW,Berenbaum MR,Heininger EE

更新日期：1986-04-01 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：:Two components, (Z)-5- and (Z)-7-tetradecenyl acetates, in the sex pheromone gland of aPlanotortrix excessana sibling species, were found to vary continuously from a ratio of 3∶97 to 71∶29 in individual female moths reared from wild larvae collected around New Zealand. Two laboratory colonies were established from pop...

journal_title：Journal of chemical ecology

authors： Foster SP,Clearwater JR,Muggleston SJ

更新日期：1989-02-01 00:00:00

abstract：:Male-specific compounds, previously identified from Phyllotreta cruciferae and synthesized or isolated from natural sources, attracted both sexes of the beetle in field trials and therefore function as components of a male-produced aggregation pheromone. Six field experiments of 7 to 10 d duration each were conducted ...

journal_title：Journal of chemical ecology

authors： Soroka JJ,Bartelt RJ,Zilkowski BW,Cossé AA

更新日期：2005-08-01 00:00:00

abstract：:The doubly cyclized bile pigment sarpedobilin (3) represents a unique case in nature. In spite of being present in trace amounts in many butterfly and moth species containing pterobilin (1) or phorcabilin (2) as the main bilin, this substance occurs as the main pigment in a restricted number of species geographically ...

journal_title：Journal of chemical ecology

authors： Barbier M

更新日期：1990-03-01 00:00:00

abstract：:Visual and acoustic cues may serve as aposematic signals that warn predators of poisonous foods. Olfactory aposematism, the use of innocuous odors as warning signals for toxic foods, is another possible means of alerting an animal that a potential food item is unpalatable. Although it has been suggested that olfactory...

journal_title：Journal of chemical ecology

authors： Camazine S

更新日期：1985-09-01 00:00:00

abstract：:Semiochemicals such as sex pheromones and plant volatiles are crucial components of insect mating systems and host plant localization. In the olfactory signal transduction pathway, odorant-binding proteins (OBPs) are important elements that function in the first step of the pathway by carrying hydrophobic semiochemica...

journal_title：Journal of chemical ecology

authors： Sun L,Gu SH,Xiao HJ,Zhou JJ,Guo YY,Liu ZW,Zhang YJ

更新日期：2013-09-01 00:00:00

abstract：:It is widely believed that most orchid flowers attract insects by using deception or chemical rewards in the form of nectar. Flowers of Bulbophyllum vinaceum produce a large array of phenylpropanoids that lure tephritid fruit fly males and also act as floral reward, which the flies subsequently convert to pheromone co...

journal_title：Journal of chemical ecology

authors： Tan KH,Tan LT,Nishida R

更新日期：2006-11-01 00:00:00

abstract：:Analysis by gas chromatography (GC) and GC-mass spectroscopy disclosed that droplets of anal fluid produced by second-instar western flower thrips,Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), contain a two-component alarm pheromone, comprised of decyl acetate and dodecyl acetate, in a molar ratio o...

journal_title：Journal of chemical ecology

authors： Teerling CR,Pierce HD Jr,Borden JH,Gillespie DR

更新日期：1993-04-01 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：: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：:A bicyclic sesquiterpene dialdehyde, polygodial did not inhibit root elongation up to a concentration of 12.5 microg/ml in a lettuce seedling assay: trans-Cinnamic acid inhibited the elongation by 50% at 1.2 microg/ml (8.1 microM). The inhibitory activity of trans-cinnamic acid was enhanced 17-fold when used in combin...

journal_title：Journal of chemical ecology

authors： Fujita K,Kubo I

更新日期：2003-10-01 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：:Cellulose triacetate was investigated as a chiral stationary phase for preparatively separating the enantiomers of lineatin, frontalin, exo-brevicomin, endo-brevicomin, verbenone, (E)-conophthorin, and grandisol. Tens of milligrams of both enantiomers were efficiently prepared in high percentage enantiomeric excess fr...

journal_title：Journal of chemical ecology

authors： Keeling CI,Ngo HT,Benusic KD,Slessor KN

更新日期：2001-03-01 00:00:00

abstract：:To understand the interference mechanism of the weed, cogongrass,Imperata cylindrica (L.) Beauv., its effect on nutrient availability and mycoflora of its soil rhizosphere as well as nodule characteristics, root length, and root/shoot ratio of Melilotus parviflora Desf. were investigated. Additionally, the effect of t...

journal_title：Journal of chemical ecology

authors： Inderjit,Dakshini KM

更新日期：1991-02-01 00:00:00

abstract：:We report the identification, synthesis, and field bioassays of a volatile, male-produced aggregation pheromone of a long-horned beetle, the banded alder borer, Rosalia funebris Mots. Headspace collections from males contained a major male-specific compound, (Z)-3-decenyl (E)-2-hexenoate, and several minor components,...

journal_title：Journal of chemical ecology

authors： Ray AM,Millar JG,McElfresh JS,Swift IP,Barbour JD,Hanks LM

更新日期：2009-01-01 00:00:00

abstract：:The olfactory system of living organisms can accurately discriminate numerous odors by recognizing the pattern of activation of several odorant receptors (ORs). Thus, development of an odorant sensor array based on multiple ORs presents the possibility of mimicking biological odor discrimination mechanisms. Recently, ...

journal_title：Journal of chemical ecology

authors： Termtanasombat M,Mitsuno H,Misawa N,Yamahira S,Sakurai T,Yamaguchi S,Nagamune T,Kanzaki R

更新日期：2016-07-01 00:00:00

abstract：:In 2002-2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (-)-alpha-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North ...

journal_title：Journal of chemical ecology

authors： Miller DR,Rabaglia RJ

更新日期：2009-04-01 00:00:00

abstract：:Jasmonic acid (JA) is a key molecule initiating plant defensive responses to attack by pathogens and herbivores. This phytohormone is produced at sites of insect damage and is ingested by feeding insects, but its subsequent occurrence in insect tissues remains to be studied. We report the presence of JA in eggs and ne...

journal_title：Journal of chemical ecology

authors： Tooker JF,De Moraes CM

更新日期：2005-11-01 00:00:00

abstract：:Hard clams, Mercenaria mercenaria, are sessile, filter-feeding organisms that are heavily preyed upon by blue crabs, which find their clam prey using chemical cues. Clams may evade blue crabs by reducing their pumping (feeding) behavior when a threat is perceived. The purpose of this study was to determine the type of...

journal_title：Journal of chemical ecology

authors： Smee DL,Weissburg MJ

更新日期：2006-03-01 00:00:00

abstract：:Attraction of (2E,4E,6R,10R)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one [1; (6R,10R)-matsuone] and its antipode [2; (6S,10S)-matsuone] toMatsucoccus thunbergianae males was studied in the laboratory and in the field. They showed stronger response to1. In laboratory bioassays, the threshold concentrations for male att...

journal_title：Journal of chemical ecology

authors： Park SC,Wi AJ,Kim HS

更新日期：1994-09-01 00:00:00

abstract：:The cowpea weevil, Callosobruchus maculatus, is a major pest of stored pulses. Females of this species produce a contact sex pheromone that elicits copulation behavior in males. Pheromone was extracted from filter-paper shelters taken from cages that housed females. Crude ether extract stimulated copulation in male C....

journal_title：Journal of chemical ecology

authors： Nojima S,Shimomura K,Honda H,Yamamoto I,Ohsawa K

更新日期：2007-05-01 00:00:00

abstract：:Solid phase microextraction (SPME) has become a common technique for volatile sampling due to its ease of use and limited technical requirements. The solvent-free nature of SPME is also exceptionally attractive for gas chromatography mass spectrometry (GC/MS) analysis. To ensure efficient transfer of the sample to the...

journal_title：Journal of chemical ecology

authors： Gaffke AM,Alborn HT

更新日期：2021-01-18 00:00:00

abstract：:The chemical composition of some volatile (2-heptanol) and nonvolatile constituents (a homologous 9-alkene/alkane series) of Mormolyca ringens flowers and Scaptotrigona sp. queen waxes (homologous 9-alkene/alkane series) and cephalic extracts (homologous series of 2-alkanols, including 2-heptanol) involved with the ps...

journal_title：Journal of chemical ecology

authors： Flach A,Marsaioli AJ,Singer RB,Amaral Mdo C,Menezes C,Kerr WE,Batista-Pereira LG,Corrêa AG

更新日期：2006-01-01 00:00:00