Abstract：
:Plant secondary metabolites have an important role in defense responses against herbivores and pathogens, and as a chemical barrier to elevated levels of harmful air pollutants. This study involves the rapid chemical profiling of phenolic and diterpene resin acids in needles of two (ozone-tolerant and ozone-sensitive) white pine (Pinus strobus) clones, fumigated with different ozone levels (control, and daily events peaking at 80 and 200 ppb) for 40 days. The phenolic and resin acids were measured using thermally assisted hydrolysis and methylation (THM) gas chromatography/mass spectrometry. Short-term fumigation affected the levels of two phenolic acids, i.e., 3-hydroxybenzoic and 3,4-dihydroxybenzoic acids, in that both showed a substantial decrease in concentration with increased ozone dose. The decrease in concentration of these THM products may be caused by inhibition of the plant's shikimate biochemical pathway caused by ozone exposure. The combined occurrence of these two ozone-sensitive indicators has a role in biomonitoring of ozone levels and its impact on forest productivity. In addition, chromatographic profile differences in the major diterpene resin acid components were observed between ozone-tolerant and ozone-sensitive clones. The resin acids anticopalic, 3-oxoanticopalic, 3beta-hydroxyanticopalic, and 3,4-cycloanticopalic acids were present in the ozone-sensitive pine; however, only anticopalic acid was present in the ozone-tolerant clone. This phenotypic variation in resin acid composition may be useful in distinguishing populations that are differentially adapted to air pollutants.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Shadkami F,Helleur RJ,Cox RMdoi
10.1007/s10886-007-9314-1subject
Has Abstractpub_date
2007-07-01 00:00:00pages
1467-76issue
7eissn
0098-0331issn
1573-1561journal_volume
33pub_type
杂志文章abstract：:Oxidative responses of plants to pathogens and other environmental stresses have received considerable recent attention. We propose that an oxidative response also occurs following attack by herbivores. Our data strongly indicate a shift in the oxidative status of soybean following herbivory by the insectHelicoverpa z...
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
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
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01403099
更新日期：1982-11-01 00:00:00
abstract：:The study of food repulsion in ungulates is of practical importance for controlling browsing damage to forest trees and agricultural crops. Experiments with domestic sheep assessed the repulsive value of three natural and two synthetic products, using a food-choice situation. Animals were individually presented with t...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00993691
更新日期：1993-02-01 00:00:00
abstract：:The olfactory system of living organisms can accurately discriminate numerous odors by recognizing the pattern of activation of several odorant receptors (ORs). Thus, development of an odorant sensor array based on multiple ORs presents the possibility of mimicking biological odor discrimination mechanisms. Recently, ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-016-0726-7
更新日期：2016-07-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-015-0593-7
更新日期：2015-06-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9537-9
更新日期：2008-10-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-007-9313-2
更新日期：2007-07-01 00:00:00
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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
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-016-0687-x
更新日期：2016-04-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-009-9639-z
更新日期：2009-05-01 00:00:00
abstract：:The evolution of male moth responses to pheromone blends may be constrained by a trade-off between two response traits: sensitivity and breadth of response. Population genetic simulations predict that if sensitivity and breadth of response are negatively correlated (i.e., a trade-off exists), then selection will favor...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9546-8
更新日期：2008-11-01 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
abstract：:Larvae of Heliconius butterflies (Nymphalidae: Heliconiinae) feed exclusively on cyanogenic leaves of Passiflora (passion vine). Most Heliconius manufacture cyanogenic glycosides (cyanogens) and some species sequester cyanogens from host plants. We compare ability to sequester simple monoglycoside cyclopentenyl (SMC) ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-006-9207-8
更新日期：2007-01-01 00:00:00
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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：:Temporal gland secretion (TGS), obtained from 15 different mature African elephants in Kruger National Park was analyzed for volatile constituents. Only five volatile components were present.p-Cresol was present in all samples, but phenol was found as an appreciable component of only one sample and as trace amounts in...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994782
更新日期：1982-05-01 00:00:00
abstract：:Calocedrus formosana Florin (Cupressaceae) is an endemic tree species in Taiwan; its timber is recognized for natural decay resistance. To examine the antitermitic and antifungal activities of leaf essential oil and its main constituents, C. formosana leaves were extracted and the essential oils analyzed by GC-MS. Bio...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/b:joec.0000045588.67710.74
更新日期：2004-10-01 00:00:00
abstract：:In spite of the importance of chemoreception in social organization and sexual selection of lizards, there is a lack of general knowledge on how the characteristics of chemical signals mediate these behaviors. Moreover, it is unknown which are the mechanisms that might confer honesty to the information provided by che...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-005-9012-9
更新日期：2006-02-01 00:00:00
abstract：:Interdigital secretions were collected from eight male white-tailed deer of various ages. Analysis of volatiles was performed by gas chromatography-mass spectrometry with a modified headspace technique. Forty-six volatile compounds were found including alkanes, arenes, aldehydes, ketones, aliphatic acids, esters, pyrr...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02272407
更新日期：1996-09-01 00:00:00
abstract：:2,4-Dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), the major hydroxamic acid present in corn, and its tritiated derivative, were prepared synthetically for use in the determination of the toxicokinetics of this insect deterrent in the European corn borer (ECB),Ostrinia nubilalis. In growth studies with DIMBOA (0, ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01207432
更新日期：1989-07-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02033667
更新日期：1995-11-01 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：:TheMaladera matrida beetle (Coleoptera, Scarabaeidae, Melolonthinae), a relatively new species to science, was first identified in Israel in 1983. In the course of field observations it was found that adultM. matrida beetles emerged from the soil at sunset to feed and mate. During the first 20 min of flight, most of t...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02036200
更新日期：1994-10-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00980203
更新日期：1987-07-01 00:00:00
abstract：:Latex occurs in 10% of plant families, has evolved independently many times, and is the most effective defense of milkweeds against its chewing herbivores. Here we report on new experiments on the heritability and inducibility of latex in several milkweed species. In addition, we review what is known about the genetic...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-019-01119-8
更新日期：2019-12-01 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
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00988039
更新日期：1983-02-01 00:00:00
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journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02028506
更新日期：1996-10-01 00:00:00
abstract：:The host selection process ofBlepharipa pratensis (Meigen), a tachinid parasite of the gypsy moth,Lymantria dispar L., was investigated. Once in the host's habitat, and following contact with a recently damaged leaf edge (cut, torn, eaten), the fly orients perpendicular to the edge and moves back and forth with the fr...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00987859
更新日期：1984-02-01 00:00:00
abstract：:The cuticular lipid composition of lower and upper leaves of five genotypes of field-grown corn,Zea mays L., was determined by combined gas chromatography-mass spectrometry. Surface lipids of the upper leaves had a higher proportion ofn-alkanes (45-52%) than the lower leaves, while the lower leaves had higher percenta...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00983808
更新日期：1993-09-01 00:00:00
