Composition and antifungal activity of the essential oil of the Brazilian Chenopodium ambrosioides L.

abstract：:Calocedrus formosana Florin (Cupressaceae) is an endemic tree species in Taiwan; its timber is recognized for natural decay resistance. To examine the antitermitic and antifungal activities of leaf essential oil and its main constituents, C. formosana leaves were extracted and the essential oils analyzed by GC-MS. Bio...

journal_title：Journal of chemical ecology

authors： Cheng SS,Wu CL,Chang HT,Kao YT,Chang ST

更新日期：2004-10-01 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：:Two major orthodihydroxy phenolics ofLycopersicon esculentum, rutin and chlorogenic acid, have previously been identified as potential sources of host-plant resistance against the tomato fruitwormHeliothis zea. We report here the possible incompatibility of these chemically based resistance factors with viral control ...

journal_title：Journal of chemical ecology

authors： Felton GW,Duffey SS,Vail PV,Kaya HK,Manning J

更新日期：1987-04-01 00:00:00

abstract：:Chemical plant strengtheners find increasing use in agriculture to enhance resistance against pathogens. In an earlier study, it was found that treatment with one such resistance elicitor, BTH (benzo-(1, 2, 3)-thiadiazole-7-carbothioic acid S-methyl ester), increases the attractiveness of maize plants to a parasitic w...

journal_title：Journal of chemical ecology

authors： Sobhy IS,Erb M,Sarhan AA,El-Husseini MM,Mandour NS,Turlings TC

更新日期：2012-04-01 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：:A sex pheromone produced by female banded cucumber beetle adults,Diabrotica balteata LeConte, was isolated from volatiles trapped on Porapak Q and identified as 6,12-dimethylpentadecan-2-one. The structure was elucidated by spectroscopic analyses and confirmed by synthesis. The synthesized racemic compound was equal t...

journal_title：Journal of chemical ecology

authors： Chuman T,Guss PL,Doolittle RE,McLaughlin JR,Krysan JL,Schalk JM,Tumlinson JH

更新日期：1987-07-01 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：:Communication during tandem running inPachycondyla obscuricornis is chemically mediated by a pheromone produced in the pygidial gland, which is composed of a cluster of gland cells and an associated reservoir located beween the 6th and 7th tergites of the gaster. The secretion of the gland appears to be transferred to...

journal_title：Journal of chemical ecology

authors： Traniello JF,Hölldobler B

更新日期：1984-05-01 00:00:00

abstract：:Attempted purification of synthetic racemic grandisal1 by silica gel chromatography resulted in severe decomposition. The nature of this reaction was studied on silica gel and in an ether solution ofp-toluenesulfonic acid. The same products resulted from both reaction systems, although in different ratios. Five racemi...

journal_title：Journal of chemical ecology

authors： Webster FX,Zeng XN,Silverstein RM

更新日期：1987-07-01 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 inhibition of ATP synthesis, proton uptake, and electron transport (basal, phosphorylating, and uncoupled) from water to methylviologen by zaluzanin C indicates that it acts as an electron transport inhibitor. Uncoupled photosystem I electron transport rate was not affected by zaluzanin C; however, uncoupled photo...

journal_title：Journal of chemical ecology

authors： Lotina-Hennsen B,Bernal-Morales E,Roo De Vivar A,Perez-C AL,Castro-R A,Aguilar-Martinez M

更新日期：1992-11-01 00:00:00

abstract：:Many mammals and birds roll on or rub themselves with millipedes that discharge benzoquinones. Chemicals transferred from millipedes onto the integument of anointing animals are thought to deter ectoparasites. We tested the lone star tick, Amblyomma americanum (L.), for responses to three widespread components of mill...

journal_title：Journal of chemical ecology

authors： Carroll JF,Kramer M,Weldon PJ,Robbins RG

更新日期：2005-01-01 00:00:00

abstract：:In field tests in Europe, traps baited with a blend of isoamyl alcohol, acetic acid, and isobutanol (compounds previously found attractive to a number of noctuids in North America) caught the following noctuid moths: Agrotis segetum Schiff., Agrotis crassa Hbn., Agrotis exclamationis L., Amathes (Xestia) c-nigrum L., ...

journal_title：Journal of chemical ecology

authors： Tóth M,Szarukán I,Dorogi B,Gulyás A,Nagy P,Rozgonyi Z

更新日期：2010-06-01 00:00:00

abstract：:Stingless bees (Hymenoptera, Apidae: Meliponini) represent a highly diverse group of social bees confined to the world's tropics and subtropics. They show a striking diversity of structural and behavioral adaptations and are important pollinators of tropical plants. Despite their diversity and functional importance, t...

journal_title：Journal of chemical ecology

authors： Leonhardt SD

更新日期：2017-04-01 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：:A sequence of reactions is presented for inverting the configurations of both epoxide carbons in 1,2-disubstituted epoxides. As examples, (+)-disparlure was converted to its enantiomer, (-)-disparlure, andexo-endo conversion of a cyclohexene oxide was demonstrated. ...

journal_title：Journal of chemical ecology

authors： Oliver JE,Waters RM,Harrison DJ

更新日期：1996-02-01 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：:Trichothecene mycotoxins were produced byFusarium sporotrichioides DAOM 197255 isolated from a spruce budworm cadaver. An extract from the culture filtrate containing these metabolites was toxic to budworm when ingested at concentrations as low as 10 ppm in diet, and survivors were predisposed to infection with a fung...

journal_title：Journal of chemical ecology

authors： Strongman DB,Strunz GM,Yu CM

更新日期：1990-05-01 00:00:00

abstract：:Anal (proctodeal) glands of maleMicrotus agrestis housed in social isolation undergo severe atrophy. Their weight and volume is significantly lower than those of the stock control males. The atrophied glands can be revived by subjecting deprived voles to various social odors. Atrophied glands of isolated males do not ...

journal_title：Journal of chemical ecology

authors： Khan TY,Stoddart DM

更新日期：1986-12-01 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：:The milfoil weevil Euhrychiopsis lecontei is a specialist aquatic herbivore that feeds, oviposits, and mates on the invasive freshwater macrophyte Myriophyllum spicatum. We characterized the weevil's preference for M. spicatum, and through bioassay-driven fractionation, isolated and identified two chemicals released b...

journal_title：Journal of chemical ecology

authors： Marko MD,Newman RM,Gleason FK

更新日期：2005-12-01 00:00:00

abstract：:The outcome of plant-mediated interactions among herbivores from several feeding guilds has been studied intensively. However, our understanding on the effects of nematode root herbivory on leaf miner oviposition behavior and performance remain limited. In this study, we evaluated whether Meloidogyne incognita root he...

journal_title：Journal of chemical ecology

authors： Arce CC,Machado RA,Ribas NS,Cristaldo PF,Ataíde LM,Pallini Â,Carmo FM,Freitas LG,Lima E

更新日期：2017-02-01 00:00:00

abstract：:Insects use a wide range of structurally diverse pheromones for intra-specific communication. Compounds in the class of terpenes are emitted as sex, aggregation, alarm, or trail pheromones. Despite the common occurrence of terpene pheromones in different insect lineages, their origin from dietary host plant precursors...

journal_title：Journal of chemical ecology

authors： Lancaster J,Lehner B,Khrimian A,Muchlinski A,Luck K,Köllner TG,Weber DC,Gundersen-Rindal DE,Tholl D

更新日期：2019-02-01 00:00:00

abstract：:Bacteria swim by rotating semirigid, left-handed helical flagellar filaments; counterclockwise (CCW) rotation produces straight swims, known as "runs," and clockwise (CW) rotation generates abrupt changes in direction, known as "tumbles." As a cell moves through its environment, alternately running and tumbling, it de...

journal_title：Journal of chemical ecology

authors： Manson MD

更新日期：1990-01-01 00:00:00

abstract：:The potential for pheromone-based mating disruption of the Brassica pest Contarinia nasturtii was tested, both in small-scale plots with Brussels sprouts and in commercial-scale fields with either broccoli or cauliflower. Experiments in the small-scale plots used laboratory-reared insects released into a previously un...

journal_title：Journal of chemical ecology

authors： Samietz J,Baur R,Hillbur Y

更新日期：2012-09-01 00:00:00

abstract：:The novel pyrazines, (E)- and (Z)-5-methyl-3-(2-methylbutyl)-2-(3-methylbut-1-enyl)pyrazine, (E)- and (Z)-5-methyl-3-isopentyl-2-(3-methylbut-1-enyl) pyrazine, (E)- and (Z)-5-methyl-3-(2-methylbutyl)-2-(3-methylpent-1-enyl)pyrazine, (E)- and (Z)-5-methyl-3-isopentyl-2-(3-methylpentl-enyl) pyrazine, together with the k...

journal_title：Journal of chemical ecology

authors： Tecle B,Sun CM,Brophy JJ,Toia RF

更新日期：1987-08-01 00:00:00

abstract：:Membrane feeding studies were conducted to determine the effects of raw juices and chemical extracts of leaves of aphid-resistant (ICV-12) and aphid-susceptible (ICV-1) cultivars of cowpea [Vigna unguiculata L. (Walp.)], on the survival, growth, and reproduction of cowpea aphidAphis craccivora Koch. Life table and dem...

journal_title：Journal of chemical ecology

authors： Annan IB,Tingey WM,Schaefers GA,Saxena KN

更新日期：1996-07-01 00:00:00

abstract：:Dufour's gland is the origin of the trail pheromone of Gnamptogenys striatula. Chemical analysis of the glandular extracts revealed a series of new natural products, especially esters of (2E)-3,4,7-trimethyl-2,6-octadien-1-ol (4-methylgeraniol), and (2E)-3,4,7-trimethyl-2,6-nonadien-1-ol (a bishomogeraniol isomer) wit...

journal_title：Journal of chemical ecology

authors： Blatrix R,Schulz C,Jaisson P,Francke W,Hefetz A

更新日期：2002-12-01 00:00:00

abstract：:Cuticular hydrocarbons play a significant role in the regulation of cuticular permeability and also in the chemical communication of insects. In the parasitoid Lariophagus distinguendus (Hymenoptera: Pteromalidae), male courtship behavior is mediated by a female-produced sex pheromone. Previous studies have shown that...

journal_title：Journal of chemical ecology

authors： Steiner S,Mumm R,Ruther J

更新日期：2007-04-01 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