Response on the ground of bark beetle and weevil species colonizing conifer stumps and roots to terpenes and ethanol.

abstract：:Tachinid flies commonly use the pheromones and allomones of stink bugs (Pentatomidae) as host-finding kairomones. Pheromone-baited traps for predaceous (Podisus spp.) and phytophagous (Euschistus spp.) pentatomids were used to obtain tachinid parasitoids in order to study the semiochemical relationships between these ...

journal_title：Journal of chemical ecology

authors： Aldrich JR,Zhang A

更新日期：2002-08-01 00:00:00

abstract：:This study describes the identification of an aggregation pheromone for the pepper weevil,Anthonomus eugenii and field trials of a synthetic pheromone blend. Volatile collections and gas chromatography revealed the presence of six male-specific compounds. These compounds were identified using chromatographic and spect...

journal_title：Journal of chemical ecology

authors： Eller FJ,Bartelt RJ,Shasha BS,Schuster DJ,Riley DG,Stansly PA,Mueller TF,Shuler KD,Johnson B,Davis JH,Sutherland CA

更新日期：1994-07-01 00:00:00

abstract：:Many parasitic wasps are attracted to volatiles that are released by plants when attacked by potential hosts. The attractiveness of these semiochemicals from damaged plants has been demonstrated in many tritrophic systems, but the physiological mechanisms underlying the insect responses are poorly understood. We recor...

journal_title：Journal of chemical ecology

authors： Gouinguené S,Pickett JA,Wadhams LJ,Birkett MA,Turlings TC

更新日期：2005-05-01 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：:Astrans-2-nonenal (T2N) acts as an insect repellent, an insecticide, and a flavor compound, it would be desirable to manipulate its concentration in plants. Simple, rapid, and accurate trapping on cartridges of activated charcoal detected T2N in headspace over carrot roots and regenerants. Concentrations ranged from 0...

journal_title：Journal of chemical ecology

authors： Chamberlain DA,Wilson G,Ryan MF

更新日期：1991-03-01 00:00:00

abstract：:The plant secondary metabolite papyriferic acid (PA) deters browsing by snowshoe hares (Lepus americanus) on the juvenile developmental stage of the Alaska paper birch (Betula neoalaskana). However, the physiological mechanism that reduces browsing remains unknown. We used pharmacological assays and molecular modeling...

journal_title：Journal of chemical ecology

authors： Forbey JS,Pu X,Xu D,Kielland K,Bryant J

更新日期：2011-12-01 00:00:00

abstract：:Several major chemicals in the glandular heads of type VI trichomes ofLycopersicon species were identified and quantified by gas chromatography and mass spectrometry. Two normal odd-chained ketones, 2-undecanone (47 ng) and 2-tridecanone (146 ng), and one unknown sesquiterpene (5 ng), comprised approximately 95% of th...

journal_title：Journal of chemical ecology

authors： Lin SY,Trumble JT,Kumamoto J

更新日期：1987-04-01 00:00:00

abstract：:The ability to discriminate nestmates from non-nestmates in insect societies is essential to protect colonies from conspecific invaders. The acceptance threshold hypothesis predicts that organisms whose recognition systems classify recipients without errors should optimize the balance between acceptance and rejection....

journal_title：Journal of chemical ecology

authors： Nascimento DL,Nascimento FS

更新日期：2012-11-01 00:00:00

abstract：:Pheromone communication systems have a reliable signal with a restricted window of amounts and ratios released and perceived. We propose a model based on a Gaussian response profile that allows a quantification of the response peak (location of optimum) and a measure of the peak width (response window). Interpreting t...

journal_title：Journal of chemical ecology

authors： Schlyter F,Svensson M,Zhang QH,Knízek M,Krokene P,Ivarsson P,Birgersson G

更新日期：2001-07-01 00:00:00

abstract：:Female cowpea weevils,Callosobruchus maculatus, produce a sex pheromone that elicits orientation and sexual behavior in males. Bioassay-directed isolation of the sex pheromone was conducted and compounds in the active fraction were identified and synthesized. Volatiles were collected from individual virgin females by ...

journal_title：Journal of chemical ecology

authors： Phillips TW,Phillips JK,Webster FX,Tang R,Burkholder WE

更新日期：1996-12-01 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：: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：:Adoxophyes honmai, a serious pest of tea plants, prefers to lay eggs on mature tea leaves rather than young leaves. Here, we examined a hypothesis that Ascogaster reticulata, an egg-larval parasitoid of A. honmai, increases the likelihood of encountering host egg masses by searching mature tea leaves when host-derived...

journal_title：Journal of chemical ecology

authors： Komatsuzaki S,Piyasaengthong N,Matsuyama S,Kainoh Y

更新日期：2021-02-01 00:00:00

abstract：:Bark beetles (Coleoptera: Curculionidae, Scolytinae) have specialized feeding habits, and commonly colonize only one or a few closely related host genera in their geographical ranges. The red turpentine beetle, Dendroctonus valens LeConte, has a broad geographic distribution in North America and exploits volatile cues...

journal_title：Journal of chemical ecology

authors： Erbilgin N,Mori SR,Sun JH,Stein JD,Owen DR,Merrill LD,Bolaños RC,Raffa KF,Montiel TM,Wood DL,Gillette NE

更新日期：2007-01-01 00:00:00

abstract：:The cucurbitacins are oxygenated tetracyclic triterpenoids produced as secondary plant compounds by nearly all genera of Cucurbitaceae. The very bitter and toxic cucurbitacins are effective semiochemicals acting ecologically as allomones to protect the Cucurbitaceae from attack by a variety of invertebrate and vertebr...

journal_title：Journal of chemical ecology

authors： Metcalf RL

更新日期：1986-05-01 00:00:00

abstract：:Extracts of Amphimallon solstitiale (L.), a well known, widely distributed and rather common European scarab beetle, were analyzed by GC-MS and GC-EAD. Acetoin - (R):(S) > 9:1 - as well as 2,3-butanediol - (2R,3R): (2S,3S):meso = 1:1:9 - were present in extracts of both males and females. Although (2S,3S)-butanediol d...

journal_title：Journal of chemical ecology

authors： Tolasch T,Sölter S,Tóth M,Ruther J,Francke W

更新日期：2003-04-01 00:00:00

abstract：:The Evolution of Increased Competitive Ability (EICA) hypothesis posits that invasive plants in introduced habitats with reduced herbivore pressure will evolve reduced levels of costly resistance traits. In light of this hypothesis, we examined the constitutive and inducible expression of five chemical defense traits ...

journal_title：Journal of chemical ecology

authors： Cipollini D,Mbagwu J,Barto K,Hillstrom C,Enright S

更新日期：2005-06-01 00:00:00

abstract：:Plants synthesize a wide range of bioactive secondary metabolites to defend against pests and pathogens. Red alder (Alnus rubra) bark, root, and leaf extract have a long history of use in traditional medicine and hygiene. Diarylheptanoids, especially oregonin ((5S)-1,7-bis(3,4-dihydroxyphenyl)-5-(β-D-xylopyranosyloxy)...

journal_title：Journal of chemical ecology

authors： Lea CS,Bradbury SG,Constabel CP

更新日期：2021-01-21 00:00:00

abstract：:Male Pieris napi butterflies previously have been shown to synthesize and transfer an antiaphrodisiac, methyl salicylate (MeS), to females at mating. This substance curtails courtship and decreases the likelihood of female remating. Here, we show that similar systems occur in Pieris rapae and Pieris brassicae. In P. r...

journal_title：Journal of chemical ecology

authors： Andersson J,Borg-Karlson AK,Wiklund C

更新日期：2003-06-01 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：:Steroidal glycoalkaloids, found in species of the Solanaceae, elicit bursting activity in galeal and tarsal chemosensilla of adult Colorado potato beetles. The effect has an average latency of 6-12 sec, depending on the sensillum/alkaloid combination. A 20-sec alkaloid treatment is often suffficient to render galeal s...

journal_title：Journal of chemical ecology

authors： Mitchell BK,Harrison GD

更新日期：1985-01-01 00:00:00

abstract：:Ethanolic extract of aerial parts of Artemisia annua L. and artemisinin were evaluated as anti-insect products. In a feeding deterrence assay on Epilachna paenulata Germ (Coleoptera: Coccinellidae) larvae, complete feeding rejection was observed at an extract concentration of 1.5 mg/cm2 on pumpkin leaf tissue. The sam...

journal_title：Journal of chemical ecology

authors： Maggi ME,Mangeaud A,Carpinella MC,Ferrayoli CG,Valladares GR,Palacios SM

更新日期：2005-07-01 00:00:00

abstract：:Many plant secondary compounds induce detoxification activity in herbivorous insects. Although inducibility may be advantageous as a means of reducing costs associated with maintenance of metabolism, another benefit of inducibility is that it may allow insects to tailor their detoxification profiles to multiple substr...

journal_title：Journal of chemical ecology

authors： Cianfrogna JA,Zangerl AR,Berenbaum MR

更新日期：2002-07-01 00:00:00

abstract：:Several experiments have been conducted at the University of Illinois, Urbana, Illinois, to determine the role of allelopathic (autotoxicity) effects of alfalfa (Medicago sativa L.) on the establishment of alfalfa. By means of correcting any soil fertility differences and protecting the alfalfa seedlings from fungal a...

journal_title：Journal of chemical ecology

authors： Miller DA

更新日期：1983-08-01 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：:Sasa (Sasa cernua Makino) is a very serious weed pest. Its allelopathy was studied using lettuce, wheat, timothy, and green amaranth as testing species. Cultured in the rhizosphere soil ofSasa cernua, the seedlings were inhibited by 42-80% compared with the controls cultured in normal soil and vermiculite. The phenoli...

journal_title：Journal of chemical ecology

authors： Li HH,Nishimura H,Hasegawa K,Mizutani J

更新日期：1992-10-01 00:00:00

abstract：:Tannins, a diverse group of water-soluble phenolics with high affinity to proteins, are widely distributed in various parts of plants, and have negative effects in herbivores after ingestion. Some mammalian species are thought to counteract tannins by secreting tannin-binding salivary proteins (TBSPs). Several types o...

journal_title：Journal of chemical ecology

authors： Shimada T

更新日期：2006-06-01 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：:The Dufour's gland of the parasitic waspNemeritis (= Venturia) canescens (Grav.) was shown by gas chromatography and mass spectrometry to contain a mixture of C21, C23, and C25 saturated and monounsaturated hydrocarbons. The main component (62%) was (Z)-10-tricosene. The biological activity of the components is discus...

journal_title：Journal of chemical ecology

authors： Mudd A,Fisher RC,Smith MC

更新日期：1982-07-01 00:00:00

abstract：:Straight-chained lepidopteran pheromones are now regulated under a group standard in New Zealand, which is generic for moth pheromone products of similar low risk, under the Hazardous Substances and New Organisms Act (1996). This means that compliant new pheromone products can be developed and commercialized with low ...

journal_title：Journal of chemical ecology

authors： Suckling DM,El-Sayed AM,Walker JT

更新日期：2016-07-01 00:00:00