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-blind research design using either extract or placebo. The study reported here employed quantitative gas chromatography-mass spectrometry (GC-MS) techniques to determine the concentration of several steroids in the male and female axillary secretion extracts. The steroids examined were: androsterone sulfate, dehydroepiandrosterone sulfate, and the volatile steroid androstenol. The results suggest the following: (1) The concentration of androstenol produced by secretion donors varied during the collection period. Males appear to produce more androstenol at certain times; women's secretions show a menstrual variation in androstenol; the highest concentrations of this compound appear to be produced in the midfollicular phase, prior to ovulation. (2) The concentration of dehydroepiandrosterone sulfate is significantly greater in men than in women. (3) In addition to the steroids, a series of aliphatic acids which range from C2 to C18 in chain length were found. The more volatile members of this series may contribute to the odor of the secretions.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Preti G,Cutler WB,Christensen CM,Lawley H,Huggins GR,Garcia CRdoi
10.1007/BF01020154subject
Has Abstractpub_date
1987-04-01 00:00:00pages
717-31issue
4eissn
0098-0331issn
1573-1561journal_volume
13pub_type
杂志文章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
pub_type： 杂志文章
doi：10.1007/s10886-007-9330-1
更新日期：2007-08-01 00:00:00
abstract：:Yeast-insect interactions have been well characterized in drosophilid flies, but not in tephritid fruit flies, which include many highly polyphagous pest species that attack ripening fruits. Using the Queensland fruit fly (Bactrocera tryoni) as our model tephritid species, we identified yeast species present in the gu...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-017-0877-1
更新日期：2017-09-01 00:00:00
abstract：:The leading hypothesis for the evolution of the metal hyperaccumulation trait in plants is as a defense against herbivores. A central piece of evidence expected for this hypothesis is that plants benefit from herbivores being deterred from eating high metal tissues. While many studies have investigated whether or not ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章,meta分析
doi：10.1007/s10886-009-9607-7
更新日期：2009-03-01 00:00:00
abstract：:The chemical compositions of anal sac secretions of seven mustelid species were examined by thin-layer chromatography, gas chromatography, and mass spectrometry. The analyses showed great similarities between species belonging to the genusMustela, i.e.,M. erminea,M. nivalis,M. vison, andM. putorius, whereasMaries mart...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00988779
更新日期：1983-06-01 00:00:00
abstract：:TheNp mutant of pea (Pisum sativum L.) is characterized by two physiological responses: growth of callus under pea weevil (Bruchus pisorum L., Coleoptera: Bruchidae) oviposition on pods, and formation of neoplastic callus on pods of indoor-grown plants. Although these two responses are conditioned byNp, they are anato...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02033665
更新日期：1995-01-01 00:00:00
abstract：:A two-choice, wind-tunnel olfactometer was designed and contructed to determine whether second-instar eastern spruce budworm larvae,Christoneura fumiferana (Clem.), could detect and discriminate among host-plant volatiles. Volatiles of current year's growth ofPicea glauca were preferred over those ofP. rubens, P. mari...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01012072
更新日期：1985-07-01 00:00:00
abstract：:Biological pesticides based on nucleopolyhedroviruses (NPVs) can provide an effective and environmentally benign alternative to synthetic chemicals. On some crops, however, the efficacy and persistence of NPVs is known to be reduced by plant specific factors. The present study investigated the efficacy of Helicoverpa ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-010-9748-8
更新日期：2010-02-01 00:00:00
abstract：:Locoweeds are Astragalus and Oxytropis species that contain the toxic alkaloid swainsonine. Swainsonine accumulates in all parts of the plant with the highest concentrations found in the above ground parts. A fungal endophyte, Undifilum oxytropis, found in locoweed plant species, is responsible for the synthesis of sw...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-009-9710-9
更新日期：2009-10-01 00:00:00
abstract：:The presence of pheromones produced by larvae ofGlossina morsitans morsitans andG. m. centralis, respectively, which attract gravid females and result in aggregation of pupae, is confirmed. Behavioral experiments indicated that females preferred to larviposit over moist sand conditioned by previously allowing larvae t...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02266961
更新日期：1996-07-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-018-1040-3
更新日期：2019-01-01 00:00:00
abstract：:The genus Phyllodesmium (Aeolidoidea, Gastropoda) comprises shell-less marine snails, whose defense strategies are not well investigated yet. Here we report results of the first chemical investigation of P. briareum, as well as a re-investigation of P. longicirrum and P. magnum. Briarane diterpenes were isolated from ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-014-0496-z
更新日期：2014-09-01 00:00:00
abstract：:Natural leachates ofEucalyptus globulus (throughfall, stemflow, and soil percolates) were collected daily during rainy spells in the vegetative period (February-July), and their effects on the germination and radicle growth ofLactuca sativa were measured. Concurrently, the effects ofL. sativa of topsoil and leachates ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994428
更新日期：1991-01-01 00:00:00
abstract：:Lodgepole pines, Pinus contorta Douglas ex Louden var. latifolia Engelm. ex S. Watson, are encountering increased abiotic stress and pest activity due to recent increases in temperature and changes in precipitation throughout their range. This tree species counters these threats by producing secondary metabolites, inc...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-011-9958-8
更新日期：2011-06-01 00:00:00
abstract：:Broad bean plants (Viciafaba) infested by the pea aphid, Acyrthosiphonpisum, play akey role in the in-flightorientation of the parasitoidAphidius ervi, by producing host-induced synomones (HIS). These volatiles are herbivore-specific and are systemically released from insect-free parts of an infested plant, suggesting...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1020553531658
更新日期：2002-09-01 00:00:00
abstract：:The rice stalk stink bug, Tibraca limbativentris, is an important rice pest in Brazil with a high invasive potential for Mexico and the USA. The sex pheromone of this species was previously identified as a combination of two stereoisomers of 1,10-bisaboladien-3-ol (zingiberenol), but the absolute configurations of the...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-019-01125-w
更新日期：2020-01-01 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
pub_type： 杂志文章
doi：10.1007/BF01013905
更新日期：1988-02-01 00:00:00
abstract：:Electroantennograms (EAGs) were recorded from male and female moths of two sympatric leaf folder species,Cnaphalocrocis medinalis (Gue-née) andMarasmia patnalis Bradley (Lepidoptera: Pyralidae) to 91 volatile chemicals of plant origin. Responses of both leaf folder species were similar to all compounds except to three...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00988076
更新日期：1990-09-01 00:00:00
abstract：:Toads of the genus Bufo synthesize and accumulate bufadienolides (BDs) in their parotoid glands. BDs are cardiotonic steroids that play an important role in defense against the toads' predators. Three bufonid taxa occur in mainland Japan, Bufo japonicus formosus, B. j. japonicus, and B. torrenticola. The chemical stru...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-020-01217-y
更新日期：2020-10-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-007-9322-1
更新日期：2007-08-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02035149
更新日期：1995-10-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02065992
更新日期：1994-01-01 00:00:00
abstract：:(Z)-5-Tetradecenyl acetate and tetradecyl acetate were identified as sex pheromone components of an unnamedPlanotortrix leafroller moth species found onAvicennia resinifera (mangrove). An equal mixture of the two compounds used as bait gave field trap catches at least as good as those baited with caged virgin females....
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01880105
更新日期：1987-03-01 00:00:00
abstract：:Males ofCarpophilus antiquus Melsheimer (Coleoptera: Nitidulidae) emit an aggregation pheromone that was found to be a novel hydrocarbon, (3E,5E,7E,9E)-6,8-diethyl-4-methyl-3,5,7,9-dodecatetraene. A synthetic scheme and spectra (mass and proton NMR) are given for the compound. Beetles produced the pheromone when feedi...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00979658
更新日期：1993-10-01 00:00:00
abstract：:An inexpensive, silent, maintenance-free suction/adsorption system is described for efficiently collecting submicrogram quantities of odors over a wide range of volatilities under field conditions. The samples can later be submitted to gas chromatographic-mass spectrometric analyses. An example is given with odors sam...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00984001
更新日期：1982-01-01 00:00:00
abstract：:Maize roots respond to feeding by larvae of the beetle Diabrotica virgifera virgifera by releasing (E)-beta-caryophyllene. This sesquiterpene, which is not found in healthy maize roots, attracts the entomopathogenic nematode Heterorhabditis megidis. In sharp contrast to the emission of virtually only this single compo...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9467-6
更新日期：2008-05-01 00:00:00
abstract：:Levels of phenolic secondary metabolites in the leaves of four west African rain-forest plants,Acacia pennata, Cynometra leonensis, Diopyros thomasii, andTrema guineensis, were correlated with incident light intensity at both the inter- and intraindividual level. Enhanced phenolic levels under high light intensity app...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01022527
更新日期：1988-01-01 00:00:00
abstract：:The sorghum shootfly,Atherigona soccata, under low population density conditions lays one egg per sorghum plant. Possible regulatory mechanisms of this oviposition behavior are reported. The presence of an egg thoroughly washed and reattached to a leaf does not deter further oviposition, indicating the absence of visu...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00992377
更新日期：1981-09-01 00:00:00
abstract：:Many species of insects are known to produce and secrete benzoquinone derivatives. These compounds are usually defined as "defense chemicals." However, in many cases, it has not been determined what the chemicals are meant to defend against. Tribolium beetles produce up to three benzoquinones, but their specific funct...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-007-9293-2
更新日期：2007-06-01 00:00:00
abstract：:The herbivore-induced response of alfalfa (Medicago sativa) was examined through assays with Spodoptera littoralis larvae and analyses of important secondary substances. In food preference experiments, larvae preferred young undamaged alfalfa plants over plants that had been damaged by feeding larvae 5 and 7 days earl...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1022625810395
更新日期：2003-02-01 00:00:00
abstract：:Most studies on rhizosphere chemicals are carried out in substrate-free set-ups or in artificial substrates using sampling methods that require an air flow and may thus cause disturbance to the rhizosphere. Our study aimed to develop a simplified and inexpensive system that allows analysis of rhizosphere chemicals at ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-015-0559-9
更新日期：2015-03-01 00:00:00
