解剖学和形态学
麻醉学
听力与言语-语言病理学
行为科学
心脏和心血管系统
细胞和组织工程学
临床神经病学
危重症监护医学
牙科,口腔外科和医学
皮肤病学
急诊医学
内分泌学和新陈代谢
肠胃学和肝脏学
老人病学和老年医学
卫生保健科学和服务
血液学
免疫学
传染病
综合和补充性医学
医学伦理学
医学信息学
医学实验室技术
医学,全科和内科
医学,法律
医学,研究和试验
神经系统科学
护理
营养学和饮食学
产科医学和妇科医学
肿瘤学
眼科学
整形外科学
耳鼻喉科学
病理学
儿科学
周围血管疾病
药理学和药剂学
生理学
基本医疗保健
精神病学
公共、环境和职业卫生
放射学,核医学和医学成像
康复学
生殖生物学
呼吸系统
风湿病学
运动科学
外科学
毒理学
热带医学
泌尿学和肾脏学
病毒学
老年医学
健康政策和服务
心理学,临床
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
pub_type: 杂志文章
doi:10.1023/b:joec.0000030269.07833.8f
更新日期:2004-06-01 00:00:00
abstract::In response to feeding damage, Lima bean releases herbivore-induced plant volatiles (HIPV), which are generally assumed to attract carnivorous arthropods as an indirect defense. While many studies have focused on such tritrophic interactions, few have investigated effects of HIPV on herbivores. I used natural herbivor...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/b:joec.0000030299.59863.69
更新日期:2004-06-01 00:00:00
abstract::Extracts of glandular trichomes from Medicago sativa were tested for their ability to disrupt the settling behavior of the potato leafhopper, Empoasca fabae. Erect and procumbent glandular trichomes were mechanically isolated from stem sections of resistant genotype "G98A," and nonglandular trichomes were collected fr...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/b:joec.0000028459.45035.90
更新日期:2004-05-01 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
pub_type: 杂志文章
doi:10.1023/b:joec.0000028428.53797.cb
更新日期:2004-04-01 00:00:00
abstract::The Colorado potato beetle feeds only on glycoalkaloid-laden solanaceous plants, appears to be toxic to predators, and has aposematic coloration, suggesting the beetle may sequester alkaloids from its host plants. This study tested 4th instars and adults, as well as isolated hemolymph and excrement, to determine if th...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/b:joec.0000028495.26931.c7
更新日期:2004-04-01 00:00:00
abstract::Leaves of Chrysanthemum morifolium cv. Ramat were extracted sequentially with hexane, ethyl acetate, and methanol. The methanol fraction, when incorporated into artificial diet was found to reduce the growth of cabbage looper (Trichoplusia ni Hubner) larvae at concentrations between 500 and 5000 ppm of diet. Fractiona...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/b:joec.0000018631.67394.e5
更新日期:2004-03-01 00:00:00
abstract::Cuticular hydrocarbons are among the prime candidates for nestmate recognition in social insects. We analyzed the variation of cuticular hydrocarbons in the termite species M. subhyalinus in West Africa (Comoë National Park) on a small spatial scale (< 1 km). We found considerable variation in the composition of cutic...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/b:joec.0000017983.89279.c5
更新日期:2004-02-01 00:00:00
abstract::Thirty-seven flavonoid compounds (9 flavones, 18 flavonols, 8 flavanones, and 2 flavanonols) were investigated for their effect on feeding choice with bertha armyworm (Mamestra configurata Walker; BAW). Feeding choice was dependent upon subtle differences in biochemical structure. Unsubstituted flavone and flavanone w...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/b:joec.0000013185.62475.65
更新日期:2004-01-01 00:00:00
abstract::The attractiveness of different synthetic host odors and a synthetic aggregation pheromone (grandisoic acid [GA]) to overwintered adult plum curculios (PCs), Conotrachelus nenuphar (Herbst) (Coleoptera: Curculionidae), was examined using two types of traps (sticky panels and black pyramids) placed in border areas surr...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/b:joec.0000008017.16911.aa
更新日期:2003-12-01 00:00:00
abstract::The tropical rainforest shrub Piper cenocladum, which is normally defended against herbivores by a mutualistic ant, contains three amides that have various defensive functions. While the ants are effective primarily against specialist herbivores, we hypothesized that these secondary compounds would be effective agains...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1026310001958
更新日期:2003-11-01 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
pub_type: 杂志文章
doi:10.1023/a:1026270329989
更新日期:2003-10-01 00:00:00
abstract::Larvae of the western flower thrips Frankliniella occidentalis are known to produce an anal droplet containing decyl acetate (10Ac) and dodecyl acetate (12Ac), which act as an alarm pheromone. Analysis by GC showed that the combined mass of 10Ac and 12Ac per droplet increased with age of second instars from 2 ng to 18...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1026244931536
更新日期:2003-10-01 00:00:00
abstract::Mycorrhizas are the most important mutualistic symbioses on earth. The most prevalent type are the arbuscular mycorrhizas (AMs) that develop between roots of most terrestrial plants and fungal species of the Zygomycota. The AM fungi are able to grow into the root cortex forming intercellular hyphae from which highly b...
journal_title:Journal of chemical ecology
pub_type: 杂志文章,评审
doi:10.1023/a:1025695032113
更新日期:2003-09-01 00:00:00
abstract::The onion fly Delia antiqua is a specialist herbivore attacking only onions and closely related Allium species. n-Dipropyl disulfide (Pr2S2) has long been known to be attractive to onion flies in the laboratory and in the field. However, the insect's response is highly variable. Using behavioral bioassays we found tha...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1025642703888
更新日期:2003-09-01 00:00:00
abstract::The synthetic aggregation pheromone of the large milkweed bug, Oncopeltus fasciatus (Dallas) (Lygaeinae), also attracted males of the plant bug, Phytocoris difficilis Knight (Miridae). Field testing partial blends against the six-component blend comprising the Oncopeltus pheromone showed that cross-attraction of P. di...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1024850211619
更新日期:2003-08-01 00:00:00
abstract::In nature, Papilio polytes utilizes a limited range of rutaceous plants as hosts. We isolated and identified oviposition stimulants for the butterfly from the foliage of its primary host plant Toddalia asiatica. Females readily deposited eggs in response to a methanolic extract of the plant. Partition of the extract w...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1024274814402
更新日期:2003-07-01 00:00:00
abstract::Brassicaceae plants are nonmycorrhizal. They were found to inhibit VA mycorrhizal infection in their host plants. We tested if they can influence growth of ectomycorrhizal (ECM) fungi. When roots and leaves of Brassicaceae plants and ECM fungi were cultured together in the same petri dishes, the root exudates of turni...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1024257218558
更新日期:2003-06-01 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
pub_type: 杂志文章
doi:10.1023/a:1024277823101
更新日期:2003-06-01 00:00:00
abstract::The European rabbit (Oryctolagus cuniculus) uses the secretion of the chin gland to maintain dominance hierarchies in the wild. Recent work has investigated changes in the secretion when social status is manipulated in the rabbit. When a rabbit becomes dominant, a new compound appears in his secretion, 2-phenoxyethano...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1023836319677
更新日期:2003-05-01 00:00:00
abstract::In studies of feeding by the bark beetle, Ips paraconfusus, two pine stilbenes (pinosylvin and pinosylvin methyl ether), ferulic acid glucoside, and enantiomers of the four most common sugars present in ponderosa pine phloem (sucrose, glucose, fructose, and raffinose) did not stimulate or reduce male feeding when assa...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1023885724220
更新日期:2003-05-01 00:00:00
abstract::Bioassays with a variety of overripe fruits, including mango, plum, pear, and grape, and their extracts showed that odors from overripe mango were most attractive to adult vinegar flies, Drosophila melanogaster. Combined gas chromatography-electroantennographic detection (GC-EAD) analyses of solid-phase microextractio...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1022931816351
更新日期:2003-04-01 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
pub_type: 杂志文章
doi:10.1023/a:1022992516854
更新日期:2003-04-01 00:00:00
abstract::Osmoderma eremita (Scopoli) is an endangered scarab beetle living in hollow trees. It has mainly been known for its characteristic odor, typically described as a fruity, peachlike or plumlike aroma. The odor emanating from a single beetle can sometimes be perceived from a distance of several meters. In this paper, we ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1022850704500
更新日期:2003-03-01 00:00:00
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
pub_type: 杂志文章
doi:10.1023/a:1022828921763
更新日期:2003-03-01 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::The mating behaviour of the signal crayfish, Pacifastacus leniusculus (Dana), has been categorised into seven distinct stages: orientation; contact; seizure; turning; mounting; spermatophore deposition; and dismounting. These categories were used in the development of a bioassay to test whether mature females release ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1022646414938
更新日期:2003-02-01 00:00:00
abstract::Three amino acid-derived compounds were identified in extracts from the pheromone glands of the scarab beetle Phyllophaga elenans, i.e., L-isoleucine methyl ester (LIME), N-formyl L-isoleucine methyl ester (For-LIME), and N-acetyl L-isoleucine methyl ester (Ac-LIME). The compounds were characterized from their spectra...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1021916327715
更新日期:2003-01-01 00:00:00
abstract::Resistant willow (Salix viminalis L.) genotypes react with a rapid hypersensitive response (HR) when attacked by the gall midge Dasineura marginemtorquens Bremi. In general, infected plant genotypes or species that react hypersensitively to pathogens accumulate salicylic acid (SA) locally and systemically. Thus, patho...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1021936832258
更新日期:2003-01-01 00:00:00
abstract::A previous study showed that Sitka black-tailed deer (Odocoileus hemionus sitkensis) consumption was negatively correlated with monoterpene content in western redcedar (Thuja plicata). To test whether these monoterpenes were deterrent to Sitka black-tailed deer, we performed feeding choice experiments with four hydroc...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1021423816695
更新日期:2002-12-01 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
pub_type: 杂志文章
doi:10.1023/a:1021444321238
更新日期:2002-12-01 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
pub_type: 杂志文章
doi:10.1023/a:1021089013754
更新日期:2002-11-01 00:00:00
abstract::Entomophagous insects are often repelled by the secondary compounds of the plants eaten by their prey. These compounds, therefore, take on a defensive role for the phytophagous species that sequester them. Given that numerous entomophagous species are capable of learning, the effects on the foraging behavior of a repe...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1021009618298
更新日期:2002-11-01 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
pub_type: 杂志文章,评审
doi:10.1023/a:1020785525081
更新日期:2002-10-01 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
pub_type: 杂志文章
doi:10.1023/a:1020706129624
更新日期:2002-10-01 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::Optically pure synthetic enantiomers of (E)-conophthorin [(E)-7-methyl-1,6-dioxaspiro[4.5]decane], one of the volatiles affecting coniferophagous bark beetles, were tested on antennae of Ips typographus, I. duplicatus, I. subelongatus, Dendroctonus micans, and five Scolytus spp. by using combined gas chromatography-el...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1020569303433
更新日期:2002-09-01 00:00:00
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
pub_type: 杂志文章
doi:10.1023/a:1019972312132
更新日期:2002-08-01 00:00:00
abstract::Phaseolus vulgaris L. cv. 'Pinto' bean is a local lesion host for the plant pathogen Southern bean mosaic virus (SBMV) and its vector is the Mexican bean beetle, Epilachna varivestis Mulsant. The objective of this study was to determine if prior feeding by the beetle would affect 'Pinto' bean's resistance to SBMV and ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1019985417720
更新日期:2002-08-01 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
pub_type: 杂志文章
doi:10.1023/a:1016292317948
更新日期:2002-07-01 00:00:00
abstract::Twenty ent-labdane diterpenes, isolated from the aquatic plants Ruppia maritima and Potamogeton natans, were tested to detect their effects on aquatic organisms from different trophic levels. Toxicity tests were performed on aquatic producers (the alga Selenastrum capricornutum), and consumers including a rotifer (Bra...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1016213630957
更新日期:2002-06-01 00:00:00