Abstract:
:Seasonal changes in the production of primary nutrients (soluble carbohydrates) and secondary metabolites (terpenes, monomeric phenolics, and tannins) in the current needle tissue of Douglas fir were investigated. All four classes of compounds showed significant seasonal changes in concentration during foliage development. Most terpenes increased significantly in concentration from June 11 to August 3, and then showed declining concentrations to September 20. The most dramatic and significant seasonal increases occurred inα-pinene, camphene, and bornyl acetate concentrations. The monomeric phenolics chlorogenic acid, taxifolin glucoside, quercetin galactoside, and those unknown phenolics showed an overall trend of declining in concentration from June 11 through September 20. However, considerable variation between sampling dates in the concentration of these phenolics was noted. Tannin concentration decreased significantly from June 11 to July 9, and then increased in concentration to the September 20 sampling date. Fructose, galactose, glucose, and sucrose tended to decrease from June 11 to September 20. However, significant variation between sampling dates was evident in these compounds as well. Galactose was the major compound in the soluble carbohydrate fraction, amounting to almost 80% of the total concentration throughout the growing season. These data suggest that if phenolics and tannins function as defenses, they would only affect second- and possibly third-instar budworm larvae during the time that these instars mine the buds. Camphene,α-pinene, and bornyl acetate increased in concentration throughout the growing season and may be effective deterrents to the budworm. Both bornyl acetate and camphene have been shown in field and laboratory studies to increase larval mortality and adversely affect budworm larval growth. Carbohydrates generally act as nutrients that enhance herbivore growth. However, in a previous study, galactose was found to cause reduced budworm larval growth and increased larval mortality.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Zou J,Cates RGdoi
10.1007/BF02036736subject
Has Abstractpub_date
1995-04-01 00:00:00pages
387-402issue
4eissn
0098-0331issn
1573-1561journal_volume
21pub_type
杂志文章abstract::FourEscherichia coli strains carrying all the possible combinations of genes controlling sensitivity to near-UV (NUV;nur versusnur (+)) and far-UV (FUV;uvrA6 versusuvrA (+)) were inactivated with broad-spectrum NUV together with specific phototoxins. The inactivation kinetics of the four strains are consistent with th...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01020262
更新日期:1986-04-01 00:00:00
abstract::(E)-11-Hexadecen-1-yl acetate and (E)-11-hexadecen-1-ol were identified in extracts from the abdominal pheromone gland of femaleSceliodes cordalis and in a 1∶1 ratio acted as a potent field attractant for males. Sustained upwind flight by males to this mixture in a wind tunnel confirmed the identity of these compounds...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01041857
更新日期:1986-09-01 00:00:00
abstract::We examined the interaction between host trees and fungi associated with a tree-killing bark beetle, Dendroctonus frontalis. We evaluated (1) the response of four Pinus species to fungal invasion and (2) the effects of plant secondary metabolites on primary growth of and secondary colonization of three consistent fung...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-005-2035-4
更新日期:2005-03-01 00:00:00
abstract::A compiled program, JCE-REFS.EXE (coded in the QuickBASIC language), for use on IBM-compatible personal computers is described. The program converts a DOS text file of current B-I-T-S (BIOSIS Information Transfer System) or BIOSIS Previews references into a DOS file of citations, including abstracts, in a general styl...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00993222
更新日期:1992-09-01 00:00:00
abstract::In field experiments in the Okanagan Valley, British Columbia, the pheromone blend of (11Z)-tetradecen-1-ol acetate (Z11-14:OAc), (11E)-tetradecen-1-ol acetate (E 11-14:OAc), (9Z)-tetradecen-1-ol acetate (Z9-14:OAc) and dodecan-1-ol acetate (12: OAc) at a 100∶64∶2∶1 ratio (western FTLR blend) attracted significantly m...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00980587
更新日期:1993-12-01 00:00:00
abstract::The larva of codling moth Cydia pomonella (Tortricidae, Lepidoptera) is known as the worm in the apple, mining the fruit for food. We here show that codling moth larvae are closely associated with yeasts of the genus Metschnikowia. Yeast is an essential part of the larval diet and further promotes larval survival by r...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-012-0158-y
更新日期:2012-08-01 00:00:00
abstract::The major component of the rectal glandular extract and volatile emission of maleBactrocera cacuminatus is racemic 1,7-dioxaspiro[5.5]undecane. l-Hydroxy-5-nonanone as its open chain form, together with 6-n-butyl-3,4-dihydro-2H-pyran are minor components. 1,7-Dioxaspiro[5.5]undecan-4-ol is present at a low level and i...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00994347
更新日期:1991-02-01 00:00:00
abstract::Chemoreception in the adults of the freshwater prawnMacrobrachium rosenbergii was investigated under controlled laboratory conditions, using behavioral assays. Tests were carried out on groups, as well as on individuals, all at their intermolt stages of the molt cycle, and prestarved for three to four days. Of 28 diff...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01014678
更新日期:1987-09-01 00:00:00
abstract::Despite the recognition that phytohormonal signaling mediates induced responses to herbivory, we still have little understanding of how such signaling varies among closely related species and may generate herbivore-specific induced responses. We studied closely related milkweeds (Asclepias) to link: 1) plant damage by...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-014-0449-6
更新日期:2014-07-01 00:00:00
abstract::A study of two related plants (Antirrhinum majus L. and Linaria vulgaris Mill.) containing the same defensive compound (the iridoid glucoside, antirrhinoside) but with reproductive strategies that differ during ontogeny was undertaken. Young leaves are important to plants due to their higher photosynthetic rates and, ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-009-9715-4
更新日期:2009-11-01 00:00:00
abstract::We investigated the plume structure of a piezo-electric sprayer system, set up to release ethanol in a wind tunnel, using a fast response mini-photoionizaton detector. We recorded the plume structure of four different piezo-sprayer configurations: the sprayer alone; with a 1.6-mm steel mesh shield; with a 3.2-mm steel...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-007-9349-3
更新日期:2007-10-01 00:00:00
abstract::Holcus lanatus, a temperate grass, was found to contain low but measurable concentrations of condensed tannins (CT), according to the vanillin-HCl and the butanol-HCl methods. The variation in CT concentrations between different types of tissue including leaf age and reproductive versus nonreproductive tissue was exam...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF02228314
更新日期:1995-08-01 00:00:00
abstract::Solid phase microextraction (SPME) has become a common technique for volatile sampling due to its ease of use and limited technical requirements. The solvent-free nature of SPME is also exceptionally attractive for gas chromatography mass spectrometry (GC/MS) analysis. To ensure efficient transfer of the sample to the...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-021-01247-0
更新日期:2021-01-18 00:00:00
abstract::We investigated postpollination changes in fragrance composition and emission rates, as well as pollinator discrimination in hand-pollinated flower heads of two thistle species: Canada thistle (Cirsium arvense) and sandhill thistle (C. repandum). Following pollination, neither species emitted any novel compounds that ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-005-7615-9
更新日期:2005-11-01 00:00:00
abstract::Root exudates were collected over a 27 day period from defoliated and non-defoliated Lolium perenne L. plants grown under sterile conditions in microlysimeters. Eleven individual sugars, including both aldehyde and alcohol sugars, were identified and quantified with a gas chromatograph-mass spectrometer (GC-MS). There...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-008-9536-x
更新日期:2008-11-01 00:00:00
abstract::Chemical mimicry is an effective strategy when signal receivers recognize and discriminate models by relying on chemical cues. Some aphid enemies mimic the cuticular chemicals of aphids through various means thus avoiding detection and attack by aphid-tending ants. However, because ants have been reported to learn the...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-016-0676-0
更新日期:2016-03-01 00:00:00
abstract::Bark beetles (Coleoptera: Curculionidae, Scolytinae) have specialized feeding habits, and commonly colonize only one or a few closely related host genera in their geographical ranges. The red turpentine beetle, Dendroctonus valens LeConte, has a broad geographic distribution in North America and exploits volatile cues...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-006-9200-2
更新日期:2007-01-01 00:00:00
abstract::The major volatile components in the extract of the female sex pheromone gland ofAmorbia cuneana consisted of (E,E)- and (E,Z)-10,12-tetradecadien-1-ol acetates. The identification was based on electroantennogram bioassay of gas Chromatographic effluent from sex pheromone gland extract, relative retention times on pol...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00984021
更新日期:1982-01-01 00:00:00
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 se...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF02033701
更新日期:1995-05-01 00:00:00
abstract::Evidence is presented indicating the presence of the tick sex pheromone, 2,6-dichlorophenol in lipid droplets in the foveal glands ofDermacentor variabilis (Say) andDermacentor andersoni Stiles. The pheromone appears to be dissolved in the lipid droplets. The droplets consist of neutral lipids, mostly triacylglyceride...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00995757
更新日期:1981-03-01 00:00:00
abstract::Phytotoxicity-directed extraction and fractionation of the aerial parts of Mikania micrantha H.B.K. led to the isolation and identification of three sesquiterpenoids: dihydromikanolide, deoxymikanolide, and 2,3-epoxy-1-hydroxy-4,9-germacradiene-12,8:15,6-diolide. These sesquiterpenoids inhibited both germination and s...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-005-5805-0
更新日期:2005-07-01 00:00:00
abstract::Pyrrolizidine alkaloids (PAs) are a typical class of plant secondary metabolites that are constitutively produced as part of the plant's chemical defense. While roots are a well-established site of pyrrolizidine alkaloid biosynthesis, comfrey plants (Symphytum officinale; Boraginaceae) have been shown to additionally ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-018-0990-9
更新日期:2019-02-01 00:00:00
abstract::The parsnip webworm,Depressaria pastinacella (Lepidoptera: Oecophoridae), feeds on plants rich in furanocoumarins, phototoxic allomones. Final-instar larvae possess high levels of activities of antioxidant enzymes (Superoxide dismutase, catalase, glutathione reductase), which detoxify oxygen radicals generated from th...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01017468
更新日期:1990-08-01 00:00:00
abstract::Stingless bees (Hymenoptera, Apidae: Meliponini) represent a highly diverse group of social bees confined to the world's tropics and subtropics. They show a striking diversity of structural and behavioral adaptations and are important pollinators of tropical plants. Despite their diversity and functional importance, t...
journal_title:Journal of chemical ecology
pub_type: 杂志文章,评审
doi:10.1007/s10886-017-0837-9
更新日期:2017-04-01 00:00:00
abstract::Egg deposition by the Large Cabbage White butterfly Pieris brassicae on Brussels sprouts plants induces indirect defense by changing the leaf surface, which arrests the egg parasitoid Trichogramma brassicae. Previous studies revealed that this indirect defense response is elicited by benzyl cyanide (BC), which is pres...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-012-0132-8
更新日期:2012-07-01 00:00:00
abstract::Early theories on plant chemical defense against herbivory emphasized that apparent and unapparent plants were primarily defended by different types of compounds. More and more evidence suggests that both quantitative and qualitative defenses are found in apparent plants and that they can play a defensive role against...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01014103
更新日期:1990-05-01 00:00:00
abstract::3,7-Dimethyl-2-undecanol, 3,7,9-trimethyl-2-tridecanol, and 3,7, 11-trimethyl-2-tridecanol were synthesized as racemic mixtures in moderate yields. The alcohols are known precursors of the female sex pheromones of the pine sawfly species Diprion nipponica, Macrodiprion nemoralis, and Microdiprion pallipes, respectivel...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1016289902732
更新日期:2002-06-01 00:00:00
abstract::Herbivorous insects searching for a host plant need to integrate a sequence of multimodal sensory inputs. We conducted a series of no-choice experiments in a laboratory wind tunnel to examine the behavioral response of the specialist fruit fly, Neoceratitis cyanescens (Diptera: Tephritidae), to host visual and olfacto...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-010-9766-6
更新日期:2010-03-01 00:00:00
abstract::Racemicezo-brevicomin, racemic frontalin, and myrcene were released at two proportions (5∶1∶400 and 1∶1∶1), each at three levels (1 ×, 10 ×, and 100 ×) in a ponderosa pine forest in central California. The 5∶1∶400 mix was based on an estimate of the relative amounts released from a ponderosa pine under attack by the w...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00988303
更新日期:1985-06-01 00:00:00
abstract::Individual families of gypsy moth collected from a single population exhibited different degrees of fitness when fed diets of white alder, a suitable broadleaf host, and Douglas-fir, an unsuitable conifer host. Members of families on diets of Douglas-fir had significantly lower survival, longer larval periods, lower p...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00993728
更新日期:1991-09-01 00:00:00