Abstract：
:Phorodon humuli (Damson-hop aphid) is one of the major pests of hops in the northern hemisphere. It causes significant yield losses and reduces hop quality and economic value. Damson-hop aphid is currently controlled with insecticides, but the number of approved pesticides is steadily decreasing. In addition, the use of insecticides almost inevitably results in the development of resistant aphid genotypes. An integrated approach to pest management in hop cultivation is therefore badly needed in order to break this cycle and to prevent the selection of strains resistant to the few remaining registered insecticides. The backbone of such an integrated strategy is the breeding of hop cultivars that are resistant to Damson-hop aphid. However, up to date mechanisms of hops resistance towards Damson-hop aphids have not yet been unraveled. In the experiments presented here, we used metabolite profiling followed by multivariate analysis and show that metabolites responsible for hop aroma and flavor (sesquiterpenes) in the cones can also be found in the leaves, long before the hop cones develop, and may play a role in resistance against aphids. In addition, aphid feeding induced a change in the metabolome of all hop genotypes particularly an increase in a number of oxidized compounds, which suggests this may be part of a resistance mechanism.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Undas AK,Weihrauch F,Lutz A,van Tol R,Delatte T,Verstappen F,Bouwmeester Hdoi
10.1007/s10886-018-0980-ysubject
Has Abstractpub_date
2018-08-01 00:00:00pages
711-726issue
7-8eissn
0098-0331issn
1573-1561pii
10.1007/s10886-018-0980-yjournal_volume
44pub_type
杂志文章abstract：:Selected combinations of (Z)-5-decenyl, (Z)-7-dodecenyl, and (Z)-9-tetradecenyl acetates, the pheromone components of the turnip mothAgrotis Segetum were tested for field attractancy at six, two, and three sites in Europe, Asia, and Africa, respectively. At all of the sites in Eurasia and in northern Africa the ternar...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994360
更新日期：1992-08-01 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：:Glutathione transferase activity towards various plant isothiocyanates was studied in larvae of the two generalists, fall armyworm [Spodoptera frugiperda (J.E. Smith)], and cabbage looper [Trichoplusia ni (Hübner)], and the specialist, velvetbean caterpillar (Anticarsia gemmatalis Hübner) using the midgut soluble frac...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01019352
更新日期：1988-04-01 00:00:00
abstract：:We evaluated the effects of tannic acid and purified perrsimmon tannin on survival and reproduction of bean bugs, Riptortus clavatus.Feeding behavior of R. clavatus was also examined on sweet (cv. Fuyu) and astringent (cv. Chongdosi) persimmon fruits. Soluble tannin in sweet persimmon fruits decreased from 3% in early...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/b:joec.0000048788.35693.23
更新日期：2004-11-01 00:00:00
abstract：:The effect of cacalol and extracts (water and petroleum ether) derived from the roots ofPsacalium decompositum (Asteraceae) on the germination and radicle growth of two plants.Amaranthus hypochondriacus (Amaranthaceae) andEchinochloa crusgalli (Poaceae), and on the radial growth of four phytopathogenic fungi is descri...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02033643
更新日期：1996-03-01 00:00:00
abstract：:Larvae of the mothUtetheisa ornatrix are shown to cannibalize eggs in the laboratory. They proved most cannibalistic if they were systemically deficient in pyrrolizidine alkaloid (PA), the defensive agent that protectsUtetheisa at all stages of development against predation, and whichUtetheisa acquire as larvae from t...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00987992
更新日期：1991-11-01 00:00:00
abstract：:The influence of mustelid anal-gland compounds on population dynamics of the deer mouse (Peromyscus maniculatus) was investigated. Densities of deer mice were not found to be significantly different between treated and control areas. However, on average, numbers of deer mice were lower on treated areas following the J...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02059606
更新日期：1994-03-01 00:00:00
abstract：:Three allelochemicals from rye or its breakdown products were evaluated for activity on garden cress (Lepidum sativum L.), barnyardgrass [Echinochloa crus-galli (L.) Beauv.], cucumber (Cucumis sativus L.), and snap bean (Phaseolus vulgaris L.). 2,4-Dihydroxy-1,4(2H)-benzoxazin-3-one (DIBOA), 2(3H)-benzoxazolinone (BOA...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994418
更新日期：1991-01-01 00:00:00
abstract：:Many plant secondary compounds induce detoxification activity in herbivorous insects. Although inducibility may be advantageous as a means of reducing costs associated with maintenance of metabolism, another benefit of inducibility is that it may allow insects to tailor their detoxification profiles to multiple substr...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1023/a:1016292317948
更新日期：2002-07-01 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：: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：:The presence of a stable radical species in both fresh straw and that which had been submerged in aerated water for up to six months has been demonstrated using electron paramagnetic (spin) resonance (EPR or ESR) spectroscopy. A radical signal was associated also with material shown to contain straw lignin markers, wh...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02029950
更新日期：1996-05-01 00:00:00
abstract：:In field tests synthetic (3E,5Z)-3,5-tetradecadienyl acetate was found to attract large numbers of males ofRecurvaria leucatella Clerck into sticky traps. The other geometrical isomers did not influence catches. Of the corresponding monoenic compounds, (3E)-3-tetradecenyl acetate was highly attractive to a close relat...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00980065
更新日期：1992-07-01 00:00:00
abstract：:Sasa (Sasa cernua Makino) is a very serious weed pest. Its allelopathy was studied using lettuce, wheat, timothy, and green amaranth as testing species. Cultured in the rhizosphere soil ofSasa cernua, the seedlings were inhibited by 42-80% compared with the controls cultured in normal soil and vermiculite. The phenoli...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF02751103
更新日期：1992-10-01 00:00:00
abstract：:Jasmonic acid (JA) is a key molecule initiating plant defensive responses to attack by pathogens and herbivores. This phytohormone is produced at sites of insect damage and is ingested by feeding insects, but its subsequent occurrence in insect tissues remains to be studied. We report the presence of JA in eggs and ne...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-005-8553-2
更新日期：2005-11-01 00:00:00
abstract：:Sterol acquisition by soilborne plant pathogens of the genus Phytophthora is presumed to involve extracellular proteins belonging to class-I elicitins. However, little is known about the relationship between sterol availability and elicitin secretion. The objective of this study was to determine the expression of clas...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-009-9653-1
更新日期：2009-07-01 00:00:00
abstract：:The spherical mealybug Nipaecoccus viridis is a pest of several major crops including soybeans, grapes and citrus varieties. Sessile virgin females of N. viridis release two volatiles, 2,2,3,4-tetramethyl-3-cyclopentene-1-methanol (γ-necrodol) and γ-necrodyl isobutyrate, on a circadian rhythm with peak at 17:00 (11 hr...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-019-01075-3
更新日期：2019-06-01 00:00:00
abstract：:In laboratory experiments conducted to compare the kairomonal activity forMicroplitis croceipes (Cresson) of frass fromHeliothis zea (Boddie) larvae fed on different host plants,M. croceipes females responded to extracts of frass from larvae reared on cotton or soybeans but not on corn. The lack of response to frass f...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00987627
更新日期：1981-11-01 00:00:00
abstract：:The free amino acids have been shown by isolational work and choice bioassays to be more important than all other factors evaluated in defining leaf-feeding resistance of corn (Zea mays L.) to fall armyworm (FAW) [(Spodoptera frugiperda J.E. Smith)] larvae. 6-MBOA (6-methoxybenzoxazolinone) and maysin, toxins present ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01020510
更新日期：1990-06-01 00:00:00
abstract：:In nature, parasitoid wasps encounter and sometimes show oviposition behavior to nonhost species. However, little is known about the effect of such negative incidences on their subsequent host-searching behavior. We tested this effect in a tritrophic system of maize plants (Zea mays), common armyworms (hosts), tobacco...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-019-01064-6
更新日期：2019-04-01 00:00:00
abstract：:Many grass species are symbiotic with systemic, vertically-transmitted, asymptomatic Epichloë endophytic fungi. These fungi often produce alkaloids that defend the host against herbivores. We studied how environmental variables affect alkaloids in endophyte-infected tall fescue (Schedonorus phoenix) from three Norther...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-016-0667-1
更新日期：2016-02-01 00:00:00
abstract：:Males of several species of longhorned beetles in the subfamily Cerambycinae produce sex or aggregation pheromones consisting of 2,3-hexanediols and/or hydroxyhexanones. We tested the hypothesis that this diol/hydroxyketone pheromone motif is highly conserved within the subfamily, and the resulting prediction that mul...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-007-9275-4
更新日期：2007-05-01 00:00:00
abstract：:The rice stalk stink bug, Tibraca limbativentris, is an important rice pest in Brazil with a high invasive potential for Mexico and the USA. The sex pheromone of this species was previously identified as a combination of two stereoisomers of 1,10-bisaboladien-3-ol (zingiberenol), but the absolute configurations of the...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-019-01125-w
更新日期：2020-01-01 00:00:00
abstract：:The alfalfa seed chalcid (ASC),Bruchophagus roddi, is a monophagous pest of alfalfa that parasitizes developing seeds. To further understand the olfactory basis of host-plant recognition by ASCs, we recorded electroantennograms (EAGs) from females and males to 39 volatiles from both alfalfa and red clover. The chemore...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994235
更新日期：1992-03-01 00:00:00
abstract：:Feeding of theophylline to hornet workers from their moment of eclosion during the summer results in the following effects on the hornets: loss of appetite for proteins, inhibited ovarial development, no cell-building activity, negative phototaxis, gradual slow-down of spontaneous motor activity, difficulty in flight ...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00984011
更新日期：1982-01-01 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：:Heritable cuticular hydrocarbon patterns ofSolenopsis invicta workers are consistent within colonies for a given sampling time but vary sufficiently from colony to colony to distinguish the colonies from each other. In addition, cuticular hydrocarbon patterns change within colonies over time. Nestmate recognition cues...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF01207442
更新日期：1989-07-01 00:00:00
abstract：:An improved understanding of the complex interactions between plants and aphids is emerging. Recognition of aphid feeding in plant tissues involves production of several defense response signaling pathways and downstream production of defense and detoxification compounds. Feeding by Russian wheat aphid, Diuraphis noxi...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-011-9949-9
更新日期：2011-05-01 00:00:00
abstract：:Acetic, propionic, butyric, isobutyric, valeric, and isovaleric acids have been identified in extracts of the excreta of the house cricket,Acheta domesticus (L.), by gas-liquid chromatography. Solutions of propionic acid applied to filter paper aggregated 1- to 2-week-old larvae, while solutions of acetic, butyric, va...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/BF00994799
更新日期：1983-09-01 00:00:00
abstract：:We report the identification, synthesis, and field bioassays of a volatile, male-produced aggregation pheromone of a long-horned beetle, the banded alder borer, Rosalia funebris Mots. Headspace collections from males contained a major male-specific compound, (Z)-3-decenyl (E)-2-hexenoate, and several minor components,...
journal_title：Journal of chemical ecology
pub_type： 杂志文章
doi：10.1007/s10886-008-9576-2
更新日期：2009-01-01 00:00:00
