Abstract：
:Rapid changes in the Earth's atmosphere and climate associated with human activity can have significant impacts on agriculture including livestock production. CO2 concentration has risen from the industrial revolution to the current time, and is expected to continue to rise. Climatic changes alter physiological processes, growth, and development in numerous plant species, potentially changing concentrations of plant secondary compounds. These physiological changes may influence plant population density, growth, fitness, and toxin concentrations and thus influence the risk of toxic plants to grazing livestock. Locoweeds, swainsonine-containing Astragalus species, are one group of plants that may be influenced by climate change. We evaluated how two different swainsonine-containing Astragalus species responded to elevated CO2 concentrations. Measurements of biomass, crude protein, water soluble carbohydrates and swainsonine concentrations were measured in two chemotypes (positive and negative for swainsonine) of each species after growth at CO2 levels near present day and at projected future concentrations. Biomass and water soluble carbohydrate concentrations responded positively while crude protein concentrations responded negatively to elevated CO2 in the two species. Swainsonine concentrations were not strongly affected by elevated CO2 in the two species. In the different chemotypes, biomass responded negatively and crude protein concentrations responded positively in the swainsonine-positive plants compared to the swainsonine-negative plants. Ultimately, changes in CO2 and endophyte status will likely alter multiple physiological responses in toxic plants such as locoweed, but it is difficult to predict how these changes will impact plant herbivore interactions.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Cook D,Gardner DR,Pfister JA,Stonecipher CA,Robins JG,Morgan JAdoi
10.1007/s10886-017-0820-5subject
Has Abstractpub_date
2017-03-01 00:00:00pages
307-316issue
3eissn
0098-0331issn
1573-1561pii
10.1007/s10886-017-0820-5journal_volume
43pub_type
杂志文章abstract：:The ripe fruit ofMorinda citrifolia, host plant forDrosophila sechellia is highly toxic for three closely related species (D. melanogaster, D. simulans, andD. mauritiana). Green and rotten fruits are not toxic for all species tested. Short fatty acids were found to be present in large quantities in the extract of the ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02066234
更新日期：1994-08-01 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：:The common bright yellow antarctic lamellarian gastropodMarseniopsis mollis was examined for the presence of defensive chemistry. Proton nuclear magnetic resonance (NMR) spectroscopy indicated that a major component of ethanolic extracts purified by reversed-phase column chromatography was homarine. Further high-perfo...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02036190
更新日期：1994-10-01 00:00:00
abstract：:The click beetle species Agriotes acuminatus is distributed in open deciduous forests throughout a large area in Europe. In order to identify its sex pheromone, gland extracts of female beetles were investigated by using GC/MS. Neryl butanoate and 2,6-dimethyl-(Z,E)-2,6-octadien-1,8-diol dihexanoate, in a ratio of app...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-010-9767-5
更新日期：2010-03-01 00:00:00
abstract：:Recent studies have alerted us to the potential for conflicts between pathogen- and herbivore-induced plant defenses. The lack of studies on the induced chemical changes that simultaneous insect and pathogen attacks have on the host plant has become apparent. In the present study, we found that pepper plant volatile p...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-006-9107-y
更新日期：2006-08-01 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：:In response to feeding damage, Lima bean releases herbivore-induced plant volatiles (HIPV), which are generally assumed to attract carnivorous arthropods as an indirect defense. While many studies have focused on such tritrophic interactions, few have investigated effects of HIPV on herbivores. I used natural herbivor...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/b:joec.0000030299.59863.69
更新日期：2004-06-01 00:00:00
abstract：:Since the mid 1990s, Phytophthora ramorum has been responsible for the widespread mortality of tanoaks, as well as several oak species throughout California and Oregon forests. However, not all trees die, even in areas with high disease pressure, suggesting that some trees may be resistant to the pathogen. In this stu...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-007-9332-z
更新日期：2007-09-01 00:00:00
abstract：:The sex pheromone of the hibiscus flower borer Rehimena surusalis (Walker) (Lepidoptera: Crambidae) was analyzed by gas chromatography with electroantennographic detection (GC-EAD) and GC-mass spectrometry (GC/MS). Three EAD-active components were found in crude pheromone gland extracts of calling females. GC/MS and G...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-015-0638-y
更新日期：2015-11-01 00:00:00
abstract：:The promethea moth Callosamia promethea is one of three species of silkmoths from the genus Callosamia that occur in North America. Cross attraction of males to heterospecific calling females has been observed in the field, and hybrid progeny have been produced by pairing heterospecifics in captivity. These observatio...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-013-0349-1
更新日期：2013-10-01 00:00:00
abstract：:Individual analysis of the female sex pheromone of the adzuki bean borer, Ostrinia scapulalis, has shown that the sex pheromone of this species comprised (E)-11-tetradecenyl acetate (E11-14:OAc) and (Z)-11-tetradecenyl acetate (Z11-14:OAc) at variable blend ratios. The pheromone blend could be tentatively categorized ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1014540011854
更新日期：2002-03-01 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：:Leaves of Chrysanthemum morifolium cv. Ramat were extracted sequentially with hexane, ethyl acetate, and methanol. The methanol fraction, when incorporated into artificial diet was found to reduce the growth of cabbage looper (Trichoplusia ni Hubner) larvae at concentrations between 500 and 5000 ppm of diet. Fractiona...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/b:joec.0000018631.67394.e5
更新日期：2004-03-01 00:00:00
abstract：:In studies of feeding by the bark beetle, Ips paraconfusus, two pine stilbenes (pinosylvin and pinosylvin methyl ether), ferulic acid glucoside, and enantiomers of the four most common sugars present in ponderosa pine phloem (sucrose, glucose, fructose, and raffinose) did not stimulate or reduce male feeding when assa...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1023885724220
更新日期：2003-05-01 00:00:00
abstract：:The European rabbit (Oryctolagus cuniculus) uses the secretion of the chin gland to maintain dominance hierarchies in the wild. Recent work has investigated changes in the secretion when social status is manipulated in the rabbit. When a rabbit becomes dominant, a new compound appears in his secretion, 2-phenoxyethano...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1023836319677
更新日期：2003-05-01 00:00:00
abstract：:The glucosinolate-myrosinase system of Brassicaceae is known to hold a defensive function in both a constitutive and an inducible fashion. Glucosinolates are sulfur- and nitrogen-containing metabolites that are hydrolyzed upon tissue disruption by myrosinase enzymes. The resulting products are toxic for most herbivore...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-007-9322-1
更新日期：2007-08-01 00:00:00
abstract：:Two compounds recently isolated from the defensive gland ofNecrodes surinamensis, α-and β-necrodol, first representatives of a new category of monoterpenes (the necrodanes), are shown to be repellent to ants and other insects and irritating to cockroaches and flies. The compounds doubtless play a defensive role inNecr...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01012360
更新日期：1986-06-01 00:00:00
abstract：:Tannic acid and pin oak tannins precipitate large amounts of the abundant leaf protein, ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPC), over a wide pH range (6.15-9.30) in the presence of sodium, potassium, magnesium, and calcium ions at concentrations comparable to those reported in the gut fluids of lepidop...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00989559
更新日期：1985-04-01 00:00:00
abstract：:The behavioral response of female alfalfa seed chalcids is dependent on the polarization of sky light when exposed to olfactory stimuli between 1100 and 1500 hr. Females made no orientation flights to or landings on eight unbaited targets, but when half the targets were baited with the host-plant odor of hexyl acetate...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01021765
更新日期：1990-02-01 00:00:00
abstract：:Mutualistic associations such as the fungal farms of insects are prone to parasitism and are consequently vulnerable to attack by weeds and pests. Therefore, efficient farm management requires quick detection of weeds for their elimination. Furthermore, if the available weedicides are non-specific, then the ability of...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-017-0902-4
更新日期：2017-10-01 00:00:00
abstract：:Recovery studies were conducted with ferulic acid, a common allelopathic agent, using various soils and soil components. Ferulic acid was placed into sterile soil components (gibbsite, geothite, Georgia kaolin, and Utah bentonite), and different sterile soil materials (from different horizons in the same profile) vary...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00982221
更新日期：1983-08-01 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：: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：:Details of the syntheses of the four stereoisomers of 8-methyl-2-decanol and its propanoate ester are given. The racemic ester, two of its stereoisomers, and one stereoisomer as an acetate are attractive to several species ofDiabrotica. The key steps in the syntheses involve high-performance liquid chromatograpic reso...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01012138
更新日期：1985-10-01 00:00:00
abstract：:The outcome of plant-mediated interactions among herbivores from several feeding guilds has been studied intensively. However, our understanding on the effects of nematode root herbivory on leaf miner oviposition behavior and performance remain limited. In this study, we evaluated whether Meloidogyne incognita root he...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-016-0810-z
更新日期：2017-02-01 00:00:00
abstract：:The sorghum shootfly,Atherigona soccata, under low population density conditions lays one egg per sorghum plant. Possible regulatory mechanisms of this oviposition behavior are reported. The presence of an egg thoroughly washed and reattached to a leaf does not deter further oviposition, indicating the absence of visu...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00992377
更新日期：1981-09-01 00:00:00
abstract：:The results of experiments designed to clarify the behavioral function of the odor of the secretion from the inguinal glands of rabbits,Oryctolagus cuniculus, are presented. Members of groups of female rabbits were smeared with odoriferous materials, and the behavior of their penmates towards them was recorded. Eight ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00988314
更新日期：1982-04-01 00:00:00
abstract：:The concentration of leaf mono- and sesquiterpenes is greater in nitrate-limited than in nitrate-richHeterotheca subaxillaris plants and is highest in young leaves and declines with leaf age. To determine whether rates of volatile terpene synthesis and/or loss vary with nitrate availability and leaf age, incorporation...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01012385
更新日期：1989-05-01 00:00:00
abstract：:Brassicaceae plants are nonmycorrhizal. They were found to inhibit VA mycorrhizal infection in their host plants. We tested if they can influence growth of ectomycorrhizal (ECM) fungi. When roots and leaves of Brassicaceae plants and ECM fungi were cultured together in the same petri dishes, the root exudates of turni...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1024257218558
更新日期：2003-06-01 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
