Air sampling of volatile sex pheromone components in a closed jar.

abstract：:The pear barkminer moth, Spulerina astaurota Meyrick (Gracillariidae: Gracillariinae), is a harmful pest of the Asian-pear tree. Pheromone components of the female were analyzed by gas chromatography (GC) with an electroantennographic (EAG) detector and GC coupled with mass spectrometry. The analyses of a crude pherom...

journal_title：Journal of chemical ecology

authors： Do ND,Ohbayashi K,Naka H,Nakada K,Ando T

更新日期：2011-11-01 00:00:00

abstract：:Atmospheric levels of carbon dioxide (CO2) have been increasing steadily over the last century. Plants grown under elevated CO2 conditions experience physiological changes, particularly in phytochemical content, that can influence their suitability as food for insects. Flavonoids are important plant defense compounds ...

journal_title：Journal of chemical ecology

authors： O'Neill BF,Zangerl AR,Dermody O,Bilgin DD,Casteel CL,Zavala JA,DeLucia EH,Berenbaum MR

更新日期：2010-01-01 00:00:00

abstract：:A study was undertaken to assess the effect of parthenin--a sesquiterpene lactone from Parthenium hysterophorus--on the germination, growth, and some associated physiological changes in Ageratum conyzoides. The study reveals that germination and growth of A. conyzoides was severely reduced by parthenin in the concentr...

journal_title：Journal of chemical ecology

authors： Singh HP,Batish DR,Kohli RK,Saxena DB,Arora V

更新日期：2002-11-01 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：: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：:Immature, starved, or multiply mated males of the staphylinid beetle,Aleochara curtula, mimic their females chemically. The titer of the female sex pheromone components (Z)-7-heneicosene and (Z)-7-tricosene was quantified for various physiological types and both sexes by gas chromatography and correlated with the sexu...

journal_title：Journal of chemical ecology

authors： Peschke K

更新日期：1987-10-01 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：:2-Methyl-1,4-benzoquinone (toluquinone) and 2-methoxy-3-methyl-1,4-benzoquinone are the most common components of defensive secretions of juliform millipedes (Diplopoda: Juliformia). A natural and a synthetic millipede-defensive secretion composed of these two substances attract dung beetles of a few Onthophagus speci...

journal_title：Journal of chemical ecology

authors： Schmitt T,Krell FT,Linsenmair KE

更新日期：2004-04-01 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：:Since the mid 1990s, Phytophthora ramorum has been responsible for the widespread mortality of tanoaks, as well as several oak species throughout California and Oregon forests. However, not all trees die, even in areas with high disease pressure, suggesting that some trees may be resistant to the pathogen. In this stu...

journal_title：Journal of chemical ecology

authors： Ockels FS,Eyles A,McPherson BA,Wood DL,Bonello P

更新日期：2007-09-01 00:00:00

abstract：:We tested the activity of 11 main compounds identified from Pinus plants on the growth of Dictyostelium discoideum NC4. Four concentrations (1, 0.1, 0.01, 0.001 microg/microl) of each compound were tested using a disk volatilization technique following germination of D. discoideum NC4 spores. Photographs of D. discoid...

journal_title：Journal of chemical ecology

authors： Hwang JY,Kim JH,Yun KW

更新日期：2004-06-01 00:00:00

abstract：:Chlorophylls, the most prominent natural pigments, are part of the daily diet of herbivorous insects. The spectrum of ingested and digested chlorophyll metabolites compares well to the pattern of early chlorophyll-degradation products in senescent plants. Intact chlorophyll is rapidly degraded by proteins in the front...

journal_title：Journal of chemical ecology

authors： Badgaa A,Büchler R,Wielsch N,Walde M,Heintzmann R,Pauchet Y,Svatos A,Ploss K,Boland W

更新日期：2015-11-01 00:00:00

abstract：:The ability to detoxify defensive compounds of competitors provides key ecological advantages that can influence community-level processes. Although common in plants and bacteria, this type of detoxification interaction is extremely rare in animals. Here, using laboratory behavioral assays and analyses of videotaped i...

journal_title：Journal of chemical ecology

authors： LeBrun EG,Diebold PJ,Orr MR,Gilbert LE

更新日期：2015-10-01 00:00:00

abstract：:Forty-five species of brown algae (Phaeophyceae) were surveyed for their capacity to respond by an oxidative burst to challenges with alginate oligosaccharides. Intertidal frondose brown algae (Fucales) constitutively released high quantities of peroxide. The capacity to recognize oligoguluronates and to react with an...

journal_title：Journal of chemical ecology

authors： Küpper FC,Müller DG,Peters AF,Kloareg B,Potin P

更新日期：2002-10-01 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：:The antifungal activity of essential oil (EO) from the Brazilian epazote (Chenopodium ambrosioides L.) was evaluated by the poison food assay at concentrations of 0.3%, 0.1%, and 0.05% with eight postharvest deteriorating fungi (Aspergillus flavus, Aspergillus glaucus, Aspergillus niger, Aspergillus ochraceous, Collet...

journal_title：Journal of chemical ecology

authors： Jardim CM,Jham GN,Dhingra OD,Freire MM

更新日期：2008-09-01 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：:Several properties of the compound 3,4-dihydro-2H-pyrrole(A1-pyrroline), which has been reported as a component of the male-produced Mediterranean fruit fly pheromone, have been determined by [(1)H]- and [(13)C]nuclear magnetic resonance spectroscopy. The stability of Δ(1)-pyrroline in several solvents and at moderate...

journal_title：Journal of chemical ecology

authors： Baker JD,Heath RR,Millar JG

更新日期：1992-09-01 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：:The sex pheromone of the hibiscus flower borer Rehimena surusalis (Walker) (Lepidoptera: Crambidae) was analyzed by gas chromatography with electroantennographic detection (GC-EAD) and GC-mass spectrometry (GC/MS). Three EAD-active components were found in crude pheromone gland extracts of calling females. GC/MS and G...

journal_title：Journal of chemical ecology

authors： Honda H,Yamasaki R,Sumiuchi Y,Uehara T,Matsuyama S,Ando T,Naka H

更新日期：2015-11-01 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：:Previous studies have shown that menstrual cycle length and fertility are affected by a regular pattern of either: (1) intimate contact with men; or (2) contact with extracts from male axillary secretions; and (3) the axillary extracts of women. Experiments utilizing axillary extracts employed a controlled, double-bli...

journal_title：Journal of chemical ecology

authors： Preti G,Cutler WB,Christensen CM,Lawley H,Huggins GR,Garcia CR

更新日期：1987-04-01 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：:Lichen secondary metabolites putatively protect lichens from a variety of environmental stress factors, but it is unknown whether these substances respond to air pollution. To assess such a possibility, the three major phenolics of two epiphytic lichen species with contrasting tolerance to chronic air pollution from M...

journal_title：Journal of chemical ecology

authors： Valencia-Islas N,Zambrano A,Rojas JL

更新日期：2007-08-01 00:00:00

abstract：:Much of the growing interest in avian chemical signals has focused on the role of kin recognition or mate attraction, often with an emphasis on males, with uropygial gland secretions perhaps providing information about an individual's identity and quality. Yet, data collected to date suggest sexual dimorphism in uropy...

journal_title：Journal of chemical ecology

authors： Whittaker DJ,Hagelin JC

更新日期：2021-01-01 00:00:00

abstract：:We analyzed phenolic compounds and other elements in leaf extracts and compared morphology of three species of the Phytolaccaceae family found in South Korea. To test allelochemical effects of the three Phytolacca species, we also examined seed germination and dry weight of seedlings of Lactuca indica and Sonchus oler...

journal_title：Journal of chemical ecology

authors： Kim YO,Johnson JD,Lee EJ

更新日期：2005-05-01 00:00:00

abstract：:We evaluated the effects of tannic acid and purified perrsimmon tannin on survival and reproduction of bean bugs, Riptortus clavatus.Feeding behavior of R. clavatus was also examined on sweet (cv. Fuyu) and astringent (cv. Chongdosi) persimmon fruits. Soluble tannin in sweet persimmon fruits decreased from 3% in early...

journal_title：Journal of chemical ecology

authors： Park CG,Lee KC,Lee DW,Choo HY,Albert PJ

更新日期：2004-11-01 00:00:00

abstract：:The pattern of variation in gross cardenolide concentration of 111Asclepias speciosa plants collected in six different areas of California is a positively skewed distribution which ranges from 19 to 344 μg of cardenolide per 0.1 g dry weight with a mean of 90 μg per 0.1 g. Butterflies reared individually on these plan...

journal_title：Journal of chemical ecology

authors： Brower LP,Seiber JN,Nelson CJ,Lynch SP,Holland MM

更新日期：1984-04-01 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：:The original version of this article unfortunately contained some mistakes. ...

journal_title：Journal of chemical ecology

authors： Marneweck C,Jürgens A,Shrader AM

更新日期：2019-04-01 00:00:00