Abstract：
:Larvae ofDanaus plexippus feed almost exclusively on milkweed species of the genusAsclepias, whose characteristic secondary metabolites are cardiac glycosides (CGs). Aposematic last-instar larvae were fed with ouabain and other cardiac glycosides of differing polarities. Time course experiments show that ouabain is sequestered in the integument within 48 hr after feeding, whereas midgut tissue and hemolymph function as transient CG storage compartments. About 63% of ouabain was transferred from larvae to the butterflies, whereas 37% of ouabain was lost with larval and pupal exuviae and with the meconium. The main sites of storage in imagines are wings and integument. If mixtures of CGs are fed toD. plexippus larvae, differential sequestration can be observed: The polar ouabain contributes 58.8% of total CGs, followed by digitoxin (19.6%), oleandrin (10.6%), digoxin (4.9%), digoxigenin (4.6%) and proscillaridin A (1.5%). Thus, uptake and sequestration must be selective processes. Uptake of [(3)H]ouabain in vitro by isolated larval midguts was time-, pH-, and temperature-dependent and displayed an activation energy of 49 kJ/mol. Furthermore, the in vitro uptake of ouabain was inhibited (probably competitively) by the structurally similar convallatoxin. These data provide first evidence that ouabain uptake does not proceed by simple diffusion but with the aid of a carrier mechanism, which would explain the differential cardenolide uptake observed in living larvae.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Frick C,Wink Mdoi
10.1007/BF02033701subject
Has Abstractpub_date
1995-05-01 00:00:00pages
557-75issue
5eissn
0098-0331issn
1573-1561journal_volume
21pub_type
杂志文章abstract：:Chromatographic fractions of Himalayan cedarwood oil (Cedrus deodara) were bioassayed against the pulse beetle (Callosobruchus analis F.) and the housefly (Musca domestica L.). Almost all fractions showed insecticidal activity against both test species. Fractions I and V led to the highest mortality and also produced ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01019342
更新日期：1988-04-01 00:00:00
abstract：:Volatile chemicals produced by plants mediate host location, mate-finding and oviposition behavior in insects. State-dependent response to plant cues allows for timing of foraging, mating and oviposition on ephemeral host plants or plant parts. Caloptilia fraxinella is a herbivorous specialist on the foliage of ash tr...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-018-0927-3
更新日期：2018-03-01 00:00:00
abstract：:Seven volatile compounds identified from the headspace of whole wheat bread dough were investigated for their role in attractingGlischrochilus quadrisignatus andG. fasciatus in the field. Traps baited with either whole wheat bread dough or a synthetic seven-component bread dough odor caught similar numbers of these be...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994595
更新日期：1991-12-01 00:00:00
abstract：:To determine how individual phenolic acids in a mixture might affect phosphorus (P) uptake, 15-day-old cucumber seedlings grown in solution culture were treated with ferulic, vanillic,p-coumaric, or equimolar mixtures of these phenolic acids. Phenolic acid and P uptake were determined by solution depletion. The joint ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01017478
更新日期：1990-08-01 00:00:00
abstract：:As a specialist on the reproductive structures of Pastinaca sativa and species in the related genus Heracleum, the parsnip webworm (Depressaria pastinacella) routinely encounters a distinctive suite of phytochemicals in hostplant tissues. Little is known, however, about the detoxification mechanisms upon which this sp...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-012-0073-2
更新日期：2012-02-01 00:00:00
abstract：:In this study, we compared the effects of several preservation methods on the secondary phenolics of the mature leaves of purple willow (Salix purpurea L., salicaceae) with results obtained with fresh leaf analyses. Conventional freeze-drying, in which the leaves were first frozen with liquid nitrogen and then placed ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1010358120482
更新日期：2001-04-01 00:00:00
abstract：:Epoxide hydrolase catalyzes a simple hydrolysis of reactive cyclic ethers that may otherwise alkylate and impair critical proteins and nucleic acids required for life. Although much less studied than the cytochrome P-450 monooxygenases that produce epoxides, differences in subcellular, tissue, pH, substrate, and inhib...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01013483
更新日期：1988-10-01 00:00:00
abstract：:Insects are the largest and most diverse group of organisms on earth, with over 1,000,000 species identified to date. Stick insects ("walkingsticks" or "phasmids", Order Phasmatodea) are known for and name-derived from their camouflage that acts as a primary line of defense from predation. However, many species also p...
journal_title：Journal of chemical ecology
pub_type： 临床试验,杂志文章
doi：10.1007/s10886-012-0183-x
更新日期：2012-09-01 00:00:00
abstract：:Ilex opaca andIlex verticillata are woody species bearing lowquality, bird-dispersed fall fruits that persist for several months. Tests of secondary chemistry show that fruits of both species contain phenolics and saponins as major classes of secondary metabolites. Soluble carbohydrates are the major nutrients in both...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01402936
更新日期：1991-06-01 00:00:00
abstract：:HPLC analysis of crude dichloromethane extracts of shaken liquid cultures of the hyphomycetous fungusTolypocladium geodes Gams revealed the presence of efrapeptins. These peptides, which have mitochondrial ATPase inhibitory activity as well as antifungal and insecticidal properties, are previously known only from the ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00992580
更新日期：1991-10-01 00:00:00
abstract：:The nitidulid beetle Lobiopa insularis is an important pest of strawberry crops in the United States and Brazil. Both larvae and adults feed on ripe strawberries, causing 20-70% loss in production during serious infestations. Aiming at the development of efficient, clean, and highly specific pest management systems, s...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-017-0851-y
更新日期：2017-06-01 00:00:00
abstract：:Polydimethylsiloxane (PDMS) materials were used to quantify levels of the photosynthesis inhibitor sorgoleone in the undisturbed rhizosphere of sorghum plants. The materials used included stir bars coated with PDMS (stir bar sorptive extraction), technical grade optical fiber coated with a thin film of PDMS (matrix-so...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-005-1337-x
更新日期：2005-02-01 00:00:00
abstract：:Populations ofAedes sierrensis (Ludlow) completed development in tannic acid solutions over a wide concentration range (i.e., 0-1.0 g/liter) in artificial microcosms exposed to field conditions. The most notable effects of high tannic acid concentration were to slow larval developmental rates and to reduce numbers of ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00987373
更新日期：1993-06-01 00:00:00
abstract：:The major component of the sex pheromone of femaleSpodoptera littoralis, (Z,E)-9,11-tetradecadienyl acetate (1), elicited all steps of the male behavioral sequence, i.e., wing fanning and taking flight, oriented upwind flight and arrival to the middle of the tunnel, close approach and contact with the source. The acti...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02027947
更新日期：1996-06-01 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
pub_type： 杂志文章
doi：10.1007/s10886-009-9613-9
更新日期：2009-04-01 00:00:00
abstract：:Parasitoids respond to volatiles that plants produce when injured by herbivores. A considerable body of literature addresses the chemical pathways of herbivore-induced volatile production. However, there is almost no theory or data on how timing of volatile release in relationship to host availability for parasitizati...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9471-x
更新日期：2008-07-01 00:00:00
abstract：:Chemically based resistance of plants to herbivorous insects is today essentially synonymous with allelochemically based resistance; the importance of plant secondary compounds in determining patterns of host-plant utilization has been established in a wide variety of insect-plant interactions. In contrast, primary me...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02033799
更新日期：1995-07-01 00:00:00
abstract：:The olfactory discrimination ability in a fruit-eating bat,Carollia perspicillata, was investigated. In a food-rewarded flight training procedure, four animals were taught to choose one of two odors simultaneously presented in a three-choice apparatus.Carollia chose the odor of ripe banana over that of unripe banana i...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00982099
更新日期：1990-12-01 00:00:00
abstract：:The species of desert-dwelling ants of the Cataglyphis bicolor (Hymenoptera: Formicidae) group are difficult to distinguish by morphological features. Analysis of the secretion from the Dufour glands of workers of a number of colonies was undertaken to see if it provided a clear test of species. Linked 6c-ms showed in...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1013521123356
更新日期：2002-01-01 00:00:00
abstract：:Olfactory reception of potential pheromones and host-plant odors by male and female tarnished plant bugs (TPBs),Lygus lineolaris (Hemiptera: Miridae), was investigated by utilizing electroantennogram (EAG) techniques. In general, EAGs were similar between the sexes. Among 31 compounds of seven chemical groups tested, ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02033724
更新日期：1994-12-01 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
pub_type： 杂志文章
doi：10.1007/BF02055099
更新日期：1996-02-01 00:00:00
abstract：:Headspace extracts obtained from agar plate cultures of two marine bacteria from the North Sea (Germany), Loktanella strain BIO-204 and Dinoroseobacter shibae strain DFL-27, were analyzed by GC-MS. Several gamma-lactones and one delta-lactone were identified, besides pyrazines and some sulfur compounds. The absolute c...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-005-3553-9
更新日期：2005-04-01 00:00:00
abstract：:Male cabbage looper moths,Trichoplusia ni, from two colonies in which all females express an abnormal sex pheromone production phenotype were evaluated in a laboratory wind tunnel for upwind flight responses to the normal and abnormal sex pheromones. The abnormal sex pheromone blend consisted of 20 times as much (Z)-9...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02064433
更新日期：1994-02-01 00:00:00
abstract：:Coccinellid beetles contain a variety of defensive alkaloids that render them unpalatable to predators. Epilachna paenulata (Coleoptera: Coccinellidae) is a South American ladybird beetle that feeds on plants of the Cucurbitaceae family. The defensive chemistry of E. paenulata has been characterized as a mixture of sy...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9570-8
更新日期：2009-01-01 00:00:00
abstract：:The subsocial tenebrionid Parastizopus armaticeps Pér. is parasitized by the closely related Eremostibes opacus Koch (Coleoptera: Tenebrionidae). We found that the pygidial defensive secretions of both species are similar and contain a mixture of 1,4-benzoquinones, 1-alkenes, and monoterpene hydrocarbons. The 1-alkene...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-006-9028-9
更新日期：2006-04-01 00:00:00
abstract：:After an extensive examination of the release rates and blend ratios of pheromonal components emitted by field-collected femalePectinophora gossypiella (Saunders), we find no evidence of resistance to pheromones applied to cotton fields to disrupt mating. Females from fields with 3-5 years of exposure to disruptant ph...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00988424
更新日期：1984-11-01 00:00:00
abstract：:Termite societies are abundant in the tropics, and are therefore exposed to multiple enemies and predators, especially during foraging activity. Soldiers constitute a specialized defensive caste, although workers also participate in this process, and even display suicidal behavior, which is the case with the species N...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-019-01098-w
更新日期：2019-09-01 00:00:00
abstract：:Derivatives of 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylic acid (chrysanthemic acid) are classic natural pyrethroids discovered in pyrethrum plants and show insecticidal activity. Chrysanthemic acid, with two asymmetric carbons, has four possible stereoisomers, and most natural pyrethroids have the (1R,...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-017-0879-z
更新日期：2017-08-01 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
pub_type： 杂志文章
doi：10.1007/BF02266971
更新日期：1996-07-01 00:00:00
abstract：:Behavioral bioassays have shown that volatile oviposition-deterring chemicals are present in the frass of Ostrinia zealis, O. furnacalis, O. scapulalis, and O. latipennis larvae fed on an artificial diet. These chemicals were extractable with acetone, and could be partitioned into a polar lipid fraction. This fraction...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/b:joec.0000037750.64844.4b
更新日期：2004-07-01 00:00:00
