Abstract：
:Plants synthesize a wide range of bioactive secondary metabolites to defend against pests and pathogens. Red alder (Alnus rubra) bark, root, and leaf extract have a long history of use in traditional medicine and hygiene. Diarylheptanoids, especially oregonin ((5S)-1,7-bis(3,4-dihydroxyphenyl)-5-(β-D-xylopyranosyloxy)-heptan-3-one), have been identified as major bioactive constituents. Diarylheptanoids have become a focus of research following reports of their antioxidant, antifungal, and anti-cancer activities. Recent data suggest that high oregonin concentration is associated with resistance of red alder leaves to western tent caterpillar (Malacosoma californicum) defoliation. Here we test effects of this compound directly on leaf-eating insects. Purified oregonin was examined in insect choice and toxicity tests using lepidopteran caterpillars. The compound exhibited significant anti-feedant activity against cabbage looper (Trichoplusia ni), white-marked tussock moth (Orgyia leucostigma), fall webworm (Hyphantria cunea), and M. californicum at concentrations corresponding to oregonin content of the most resistant alder clones in previous experiments. Toxicity tests were carried out with cabbage looper larvae only, but no contact or ingested toxicity was detected. Our results suggest that oregonin at levels found in red alder leaves early in the growing season may contribute to protecting red alder from leaf-eating insects.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Lea CS,Bradbury SG,Constabel CPdoi
10.1007/s10886-021-01244-3subject
Has Abstractpub_date
2021-01-21 00:00:00eissn
0098-0331issn
1573-1561pii
10.1007/s10886-021-01244-3pub_type
杂志文章abstract：:Splitless capillary gas chromatography indicated the presence of (Z)- and (E)-11-tetradecenyl acetate and (Z)-11-tetradecenyl alcohol in the washes of female abdominal tips of the blackheaded fireworm,Rhopobota naevana (Hubner). Gas chromatography combined with mass spectroscopy confirmed the presence of tetradecenyl ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01020546
更新日期：1987-05-01 00:00:00
abstract：:Males ofCarpophilus antiquus Melsheimer (Coleoptera: Nitidulidae) emit an aggregation pheromone that was found to be a novel hydrocarbon, (3E,5E,7E,9E)-6,8-diethyl-4-methyl-3,5,7,9-dodecatetraene. A synthetic scheme and spectra (mass and proton NMR) are given for the compound. Beetles produced the pheromone when feedi...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00979658
更新日期：1993-10-01 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：:The pear barkminer moth, Spulerina astaurota Meyrick (Gracillariidae: Gracillariinae), is a harmful pest of the Asian-pear tree. Pheromone components of the female were analyzed by gas chromatography (GC) with an electroantennographic (EAG) detector and GC coupled with mass spectrometry. The analyses of a crude pherom...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-011-0032-3
更新日期：2011-11-01 00:00:00
abstract：:The tea shot-hole borer beetle (TSHB, Euwallacea fornicatus) causes serious damage in plantations of tea, Camellia sinensis var. assamica, in Sri Lanka and South India. TSHB is found in symbiotic association with the ambrosia fungus, Monacrosporium ambrosium (syn. Fusarium ambrosium), in galleries located within stems...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-017-0913-1
更新日期：2018-01-01 00:00:00
abstract：:The bark beetleIps pini (Say) displays variation in its response to and production of enantiomeric blends of its pheromone ipsdienol. One of the principal predators ofIps pini isThanasimus dubius (F.), which uses ipsdienol as a kairomone for prey location. During 1988 and 1989, in Wisconsin and Michigan, the response ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00984698
更新日期：1991-08-01 00:00:00
abstract：:The bioactivity of 22 essential oils from aromatic and medicinal plants was tested uponAcanthoscelides obtectus Say (Coleoptera, Bruchidae), a pest of kidney bean (Phaseolus vulgaris L.). The insecticidal effect was evaluated by determination of 24- and 48-hr LC50 and LC50 (from 1.50 mg/ dm(3) to more than 1000 mg/dm(...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00987383
更新日期：1993-06-01 00:00:00
abstract：:Maize, a genetically diverse crop, is the domesticated descendent of its wild ancestor, teosinte. Recently, we have shown that certain maize landraces possess a valuable indirect defense trait not present in commercial hybrids. Plants of these landraces release herbivore-induced plant volatiles (HIPVs) that attract bo...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-015-0570-1
更新日期：2015-04-01 00:00:00
abstract：:The antiherbivore potential of the glucosinolate-myrosinase defense system found in plants of the order Capparales is heavily influenced by the types of hydrolysis products (e.g. isothiocyanates, nitriles) formed from the parent glucosinolates upon plant damage. However, comparison of the effects of glucosinolate hydr...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-006-9149-1
更新日期：2006-11-01 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
abstract：:Two components, (Z)-5- and (Z)-7-tetradecenyl acetates, in the sex pheromone gland of aPlanotortrix excessana sibling species, were found to vary continuously from a ratio of 3∶97 to 71∶29 in individual female moths reared from wild larvae collected around New Zealand. Two laboratory colonies were established from pop...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01014692
更新日期：1989-02-01 00:00:00
abstract：:The genus Phyllodesmium (Aeolidoidea, Gastropoda) comprises shell-less marine snails, whose defense strategies are not well investigated yet. Here we report results of the first chemical investigation of P. briareum, as well as a re-investigation of P. longicirrum and P. magnum. Briarane diterpenes were isolated from ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-014-0496-z
更新日期：2014-09-01 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：:To understand the interference mechanism of the weed, cogongrass,Imperata cylindrica (L.) Beauv., its effect on nutrient availability and mycoflora of its soil rhizosphere as well as nodule characteristics, root length, and root/shoot ratio of Melilotus parviflora Desf. were investigated. Additionally, the effect of t...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994337
更新日期：1991-02-01 00:00:00
abstract：:Many species of insects are known to produce and secrete benzoquinone derivatives. These compounds are usually defined as "defense chemicals." However, in many cases, it has not been determined what the chemicals are meant to defend against. Tribolium beetles produce up to three benzoquinones, but their specific funct...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-007-9293-2
更新日期：2007-06-01 00:00:00
abstract：:Much of the growing interest in avian chemical signals has focused on the role of kin recognition or mate attraction, often with an emphasis on males, with uropygial gland secretions perhaps providing information about an individual's identity and quality. Yet, data collected to date suggest sexual dimorphism in uropy...
journal_title：Journal of chemical ecology
pub_type： 杂志文章,评审
doi：10.1007/s10886-020-01230-1
更新日期：2021-01-01 00:00:00
abstract：:Cardenolides are classically studied steroidal defenses in chemical ecology and plant-herbivore coevolution. Although milkweed plants (Asclepias spp.) produce up to 200 structurally different cardenolides, all compounds seemingly share the same well-characterized mode of action, inhibition of the ubiquitous Na+/K+ ATP...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-018-1040-3
更新日期：2019-01-01 00:00:00
abstract：:A current model of amino acid chemoreception has generated the idea that pH affects the efficiency of stimulus-receptor binding by altering the charge distribution on stimulus molecules. The model suggests that amino acids are maximally stimulatory near their isoelectric points. We point out that, within a broad range...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01022537
更新日期：1988-01-01 00:00:00
abstract：:Brook charr (Salvelinus fontinalis) lay their eggs in gravel nests called redds. The nests are not defended for extended periods and the eggs and young may be subject to predation from predators that travel through the substrate into the redd. In this study we tested whether long-term exposure of brook charr eggs to c...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1010404624556
更新日期：2001-09-01 00:00:00
abstract：:Electroantennograms (EAGs) were recorded from male and female black turpentine beetles,Dendroctonus terebrans (Olivier), exposed to bark beetle pheromones and host terpenes. The dose-response curves indicated similarities in the receptor mechanisms for both sexes for each compound. Antennal sensitivity was greatest to...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01021029
更新日期：1990-04-01 00:00:00
abstract：:The sex pheromone of the western hemlock looper (WHL),Lambdina fiscellaria lugubrosa (Hulst), comprises three methylated hydrocarbons: 5,11-dimethylheptadecane (5,11), 2,5-dimethylheptadecane (2,5), and 7-methylheptadecane (7). Compounds extracted from female pheromone glands were identified by coupled gas chromatogra...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00992534
更新日期：1993-05-01 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
abstract：:Boron (B) deficiency is a common micronutrient deficiency that has been reported to affect the phenolic metabolism of plants. Thus, it may play a role in defense against herbivorous animals. However, the role of B in a plant's resistance to herbivores has not received any particular attention from researchers. In this...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-011-9948-x
更新日期：2011-05-01 00:00:00
abstract：:Most snakes and lizards produce eggs with flexible shells that interact with the environment to maintain water balance. Geckos produce rigid eggshells that are independent of an external source of water and can be oviposited in more open, dryer locations. In this study, we analyzed and compared the amino acid composit...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-005-7108-x
更新日期：2005-10-01 00:00:00
abstract：:Avoidance of occupied ovisposition sites supposes that females perceive information related to their own progency. Fatty acids identified from egg extracts have been reevaluated using a different extraction method, and we have investigated the dose-dependent oviposition response of European grape vine moths (Lobesia b...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02040207
更新日期：1996-01-01 00:00:00
abstract：:Few studies have addressed how chemosensation may be impaired by chemical alterations of the environment and anthropogenic disturbance. Humic acid (HA) is a pervasive, naturally occurring organic derivative found in aquatic and terrestrial environments; human activity, however, can lead to elevated levels of HA. Recen...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-007-9377-z
更新日期：2007-11-01 00:00:00
abstract：:The effect of volatiles of diethyl ether-extracted dominant male mouse lemur urine on conspeciflc testosterone plasma concentrations was determined in an apparatus permitting olfactory isolation of the experimental subjects. Two experimental groups were exposed to air odorized with either ether or aqueous extracts of ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01880095
更新日期：1987-03-01 00:00:00
abstract：:This study was designed to compare the chemistry of elaiosomes of three sympatric species ofTrillium to discover if there are correlations between chemistry and dispersal rates by ants. We quantified the amount of proteins and neutral lipids and qualitatively analyzed the fatty acids occurring in triglyceride, diglyce...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00993754
更新日期：1992-02-01 00:00:00
abstract：:Oxytropis lambertii has been considered to be one of the major locoweeds responsible for livestock poisoning on rangelands, but there has been much confusion as to its taxonomic identity. The objective of this study was to conduct a field survey of several populations of each of the three varieties [var. lambertii Pur...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1015228507950
更新日期：2002-04-01 00:00:00
abstract：:The relationship among physiological stress responses, fecal marking behavior, and reproduction in male and female European pine martens was investigated. Between July 2004 and June 2007, 145 fresh fecal samples were collected in a protected area of northwest Spain. Fecal DNA was used for specific identification by us...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-011-9928-1
更新日期：2011-03-01 00:00:00
