Abstract：
:The protein-precipitating capacities of tanniferous extracts from immature and mature leaves of threeShorea spp. (Dipterocarpaceae) seedlings were measured by an adaptation of Goldstein and Swain's β-glucosidase precipitation assay. Protein precipitation by the extracts was not correlated with total phenolics (Folin-Denis assay) or proanthocyanidin content (BuOH-HCl assay) as measured in an earlier study. Extracts ofS. maxwelliana mature leaves had much lower protein-precipitating capacity than those ofS. acuminata andS. leprosula, but fewer insect species feed on and cause less damage to the foliage ofS. maxwelliana compared with the other species' foliage. Immature leaf extracts ofS. leprosula andS. acuminata had substantial protein-precipitating capacities which in the latter species exceeded that of its mature leaf extracts. Leaf extracts precipitated less protein when initial protein concentration was reduced, although not limiting, but no effect or the reverse effect occurred with quebracho tannin and tannic acid. Problems in the characterization of foliage astringency and the interpretation of its role as a potential antiherbivore defense are discussed.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Becker P,Martin JSdoi
10.1007/BF01403099subject
Has Abstractpub_date
1982-11-01 00:00:00pages
1353-67issue
11eissn
0098-0331issn
1573-1561journal_volume
8pub_type
杂志文章abstract：:The vast spectrum of inducible plant defenses can have direct negative effects on herbivores, or indirect effects, for instance in the form of herbivore-induced plant volatiles (HIPVs) that attract natural enemies. Various arthropods have evolved ways to suppress plant defenses. To test whether this is the case for ca...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-020-01153-x
更新日期：2020-03-01 00:00:00
abstract：:Straight-chained lepidopteran pheromones are now regulated under a group standard in New Zealand, which is generic for moth pheromone products of similar low risk, under the Hazardous Substances and New Organisms Act (1996). This means that compliant new pheromone products can be developed and commercialized with low ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章,评审
doi：10.1007/s10886-016-0728-5
更新日期：2016-07-01 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：: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：:Termite colonies are almost always founded by a pair of winged dispersers, in spite of the high costs and low success rates inherent in independent colony foundation. The dispersal flights of imagoes from natal colonies are followed by mate search, mediated by sex-pairing pheromones. Here, we studied the chemistry of ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-018-0965-x
更新日期：2018-06-01 00:00:00
abstract：:In addition to 2-methyl-4-heptanone, 6-methyl-5-hepten-2-one, and iridodials, the anal gland exudate of the dolichoderine ant,Tapinoma simrothi, contains 4-heptanone and 4-hydroxy-4-methyl-2-pentanone. The secretion functions as an alarm pheromone. ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00990412
更新日期：1983-05-01 00:00:00
abstract：:The ontogeny of the five queen mandibular gland semiochemicals that initiate and maintain the retinue behavior of worker honeybees was investigated by quantitative splitless capillary gas chromatography. No detectable pheromone is present at the time of eclosion, but decenoic acid levels build up rapidly during the fi...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01016495
更新日期：1990-03-01 00:00:00
abstract：:In the laboratory, ovipositor probing in mated femaleOlesicampe monticola was elicited by freshCephalcia lariciphila frass but not by aged frass or freshly spun larval silk. Second instar sawfly larvae andLarix needles also elicited a low level of ovipositor probing. Extracts of frass in dichloromethane, but not hexan...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00988648
更新日期：1981-01-01 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 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：:The bitter and related constituents have been isolated fromVernonia amygdalina (Compositae), a plant ingested by wild chimpanzees possibly suffering from parasite-related diseases in the Mahale Mountains National Park, Tanzania. Isolated from the plant were four known sesquiterpene lactones, seven new steroid glucosid...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02059596
更新日期：1994-03-01 00:00:00
abstract：:Plant phenolics are crucial defense phytochemicals against herbivores and glutathione S-transferase (GST) and carboxylesterase (CarE) in herbivorous insects are well-known detoxification enzymes for such xenobiotics. To understand relationship between a plant phenolic and herbivore GST or CarE genes, we evaluated the ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-017-0859-3
更新日期：2017-07-01 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
pub_type： 杂志文章
doi：10.1007/s10886-005-8399-7
更新日期：2005-12-01 00:00:00
abstract：:A brief 2-hr experience with hostDrosophila larvae in artificial apple-yeast or mushroom microhabitats had three effects on the foraging behavior of femaleLeptopilina heterotoma (Hymenoptera: Eucoilidae) parasitoids under field conditions. First, experienced females released at the center of circular arrays of apple-y...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00979616
更新日期：1990-11-01 00:00:00
abstract：:Pharmacophagy of methyl eugenol (ME)--a highly potent male attractant, by Bactrocera papayae results in the hydroxylation of ME to sex pheromonal components, 2-ally-4,5-dimethoxyphenol (DMP) and (E)-coniferyl alcohol (CF). These compounds, which are also male attractants, are then sequestered and stored in the rectal ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/b:joec.0000048778.02561.70
更新日期：2004-11-01 00:00:00
abstract：:Aggregation pheromones were isolated fromCryptolestes pusillus (Schönherr), a coleopteran pest of stored products. Porapak Q-captured beetle and frass volatiles were fractionated by preparative gas-liquid chromatography. The fractions were bioassayed with an arena olfactometer and/or with a two-choice, pitfall olfacto...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01020675
更新日期：1985-08-01 00:00:00
abstract：:Hypericin, an anthrone dimer inHypericum perforatum (Guttiferae), is shown for the first time to be phototoxic to generalist lepidopteran larvae; survivorship was reduced and development prolonged forHeliothis zea (Noctuidae) andPlatynota flavedana (Tortricidae) that consumed hypericin diets in the presence of light. ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01015183
更新日期：1989-03-01 00:00:00
abstract：:The quinolizidine alkaloids (QA) of golden rain,Laburnum anagyroides, and those of phytophagous insects associated with the plant, as well as of parasitoids of the latter, were analyzed by capillary GLC and GLC-MS. The alkaloid content in samples of vegetative plant parts was high at the beginning of the season, then ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00984688
更新日期：1991-08-01 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
pub_type： 杂志文章
doi：10.1007/s10886-007-9265-6
更新日期：2007-04-01 00:00:00
abstract：:Sex pheromone biosynthesis in the codling mothCydia pomonella (Lepidoptera; Tortricidae) was studied by topical application of deuterated fatty acids in DMSO to pheromone glands. The incorporation of deuterium label into fatty acids and alcohols in the pheromone gland was monitored by gas chromatography with flame ion...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01018782
更新日期：1988-03-01 00:00:00
abstract：:Analysis of ovipositor extracts of lab-reared (> 120 generations) and wildHeliothis zea indicated small but significant differences in the percent composition of the four aldehyde components of the sex pheromone. (Z)-11-hexadecen-1-ol (Z11-16∶OH) was present in both populations and amounted to only 2.8% of the total p...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01014828
更新日期：1989-04-01 00:00:00
abstract：:The free-living soil nematodeCaenorhabditis elegans forms a nonfeeding dispersal stage at the second molt called the dauer larva when exposed to environmental cues indicating crowding and limited food. An improved bioassay, tenfold more sensitive than that used previously, has been used in the characterization of the ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00988553
更新日期：1984-08-01 00:00:00
abstract：:Experiments were conducted in commercial apple orchards to determine if improved efficiencies in pheromone delivery may be realized by using aerosol pheromone dispensers for codling moth (CM), Cydia pomonella L., mating disruption. Specifically, we tested how reducing: pheromone concentration, period of dispenser oper...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-016-0724-9
更新日期：2016-07-01 00:00:00
abstract：:Crude extracts of root of the forage legumesLotus pedunculatus andCoronilla varia (crownvetch) were toxic when administered orally to 3rd instarCostelytra zealandica larvae. A group of 3-nitropropanoyl-D-glucopyranoses was isolated from active fractions of the crude extracts. These toxins, some of which were already k...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00987645
更新日期：1984-01-01 00:00:00
abstract：:Previous analyses of the scent gland secretions of snakes have focused on the nonvolatile components. Gas chromatography-mass spectrometry of secretions from North American garter snakes (Thamnophis butleri, T. couchi, T. elegans, T. melanogaster, andT. sirtalis) indicated the following seven major volatile components...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02036652
更新日期：1995-02-01 00:00:00
abstract：:Lespedeza cuneata contains high levels of phenolics and is a common food plant of the meadow vole (Microtus pennsylvanicus);Penstemon digitalis contains substantial quantities of alkaloids and is a common food plant of meadow voles and prairie voles (M. ochrogaster). We investigated the palatability of these plants an...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01012104
更新日期：1986-03-01 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：:The intertidal pulmonate limpetTrimusculus reticulatus, which is found in caves or crevices along the California coast, was previously reported to contain two novel diterpenoids, 6β-isovaleroxylabda-8,13-dien-7α,15-diol (1) and 2α,7α-diacetoxy-6β-isovaleroxylabda-8,13-dien-15-ol (2). Dissection of the animals prior to...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02040197
更新日期：1996-01-01 00:00:00
abstract：:Two components were identified from aeration extracts of the virgin female Madeira mealybug, Phenacoccus madeirensis as trans-(1R,3R)-chrysanthemyl (R)-2-methylbutanoate and (R)-lavandulyl (R)-2-methylbutanoate (with a ratio of 3:1) by a combination of gas chromatography retention time matches, mass spectrometry, and ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-009-9649-x
更新日期：2009-06-01 00:00:00
abstract：:DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one), a secondary metabolite found in cereal extracts, confers resistance in wheat to aphids. Its effect on beneficial organisms was tested on larvae of the aphid predatorEriopis connexa Germar. Larvae were fed until pupation on artificial diets to which different conce...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994245
更新日期：1992-03-01 00:00:00
