Fatty acids released by Chlorella vulgaris and their role in interference with Pseudokirchneriella subcapitata: experiments and modelling.

abstract：:In order to test a previous conclusion that chain-elongated analogs of (Z)-5-decenyl acetate(1), a pheromone component of the turnip moth,Agrotis segetum, adopt a loop conformation of the terminal alkyl chain in the bioactive conformation, a series of alkyl ether and enol ether analogs of1 and (Z)-5-dodecenyl acetate(...

journal_title：Journal of chemical ecology

authors： Gustavsson AL,Liljefors T,Hansson BS

更新日期：1995-06-01 00:00:00

abstract：:Attraction of (2E,4E,6R,10R)-4,6,10,12-tetramethyl-2,4-tridecadien-7-one [1; (6R,10R)-matsuone] and its antipode [2; (6S,10S)-matsuone] toMatsucoccus thunbergianae males was studied in the laboratory and in the field. They showed stronger response to1. In laboratory bioassays, the threshold concentrations for male att...

journal_title：Journal of chemical ecology

authors： Park SC,Wi AJ,Kim HS

更新日期：1994-09-01 00:00:00

abstract：:Lizards communicate with others via chemical signals, the composition of which may vary among species. Although the selective pressures and constraints affecting chemical signal diversity at the species level remain poorly understood, the possible role of diet has been largely neglected. The chemical signals of many l...

journal_title：Journal of chemical ecology

authors： Baeckens S,García-Roa R,Martín J,Van Damme R

更新日期：2017-09-01 00:00:00

abstract：:With the aim of establishing whether the oxidation of the tricyclic carbon skeleton of scalaradial (1) is specific to Glossodoris mollusks, the chemical investigation of specimens of Glossodoris pallida from two distinct geographical areas (China and Guam) and of Glossodoris vespa and Glossodoris averni from Eastern A...

journal_title：Journal of chemical ecology

authors： Manzo E,Gavagnin M,Somerville MJ,Mao SC,Ciavatta ML,Mollo E,Schupp PJ,Garson MJ,Guo YW,Cimino G

更新日期：2007-12-01 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

authors： Blenn B,Bandoly M,Küffner A,Otte T,Geiselhardt S,Fatouros NE,Hilker M

更新日期：2012-07-01 00:00:00

abstract：:Many mammals and birds roll on or rub themselves with millipedes that discharge benzoquinones. Chemicals transferred from millipedes onto the integument of anointing animals are thought to deter ectoparasites. We tested the lone star tick, Amblyomma americanum (L.), for responses to three widespread components of mill...

journal_title：Journal of chemical ecology

authors： Carroll JF,Kramer M,Weldon PJ,Robbins RG

更新日期：2005-01-01 00:00:00

abstract：:We found that the searching behavior of two acarine predators,Amblyseius fallacis andPhytoseiulus macropilis, for prey,Tetranychus urticae, is affected by the following stimuli: (1) prey silk and associated feces, whose combined physical and chemical properties elicit reduction in the rate of predator movements and lo...

journal_title：Journal of chemical ecology

authors： Hislop RG,Prokopy RJ

更新日期：1981-09-01 00:00:00

abstract：:As a specialist on the reproductive structures of Pastinaca sativa and species in the related genus Heracleum, the parsnip webworm (Depressaria pastinacella) routinely encounters a distinctive suite of phytochemicals in hostplant tissues. Little is known, however, about the detoxification mechanisms upon which this sp...

journal_title：Journal of chemical ecology

authors： Zangerl AR,Liao LH,Jogesh T,Berenbaum MR

更新日期：2012-02-01 00:00:00

abstract：:In the laboratory, ovipositor probing in mated femaleOlesicampe monticola was elicited by freshCephalcia lariciphila frass but not by aged frass or freshly spun larval silk. Second instar sawfly larvae andLarix needles also elicited a low level of ovipositor probing. Extracts of frass in dichloromethane, but not hexan...

journal_title：Journal of chemical ecology

authors： Longhurst C,Baker R

更新日期：1981-01-01 00:00:00

abstract：:Atmospheric levels of carbon dioxide (CO2) have been increasing steadily over the last century. Plants grown under elevated CO2 conditions experience physiological changes, particularly in phytochemical content, that can influence their suitability as food for insects. Flavonoids are important plant defense compounds ...

journal_title：Journal of chemical ecology

authors： O'Neill BF,Zangerl AR,Dermody O,Bilgin DD,Casteel CL,Zavala JA,DeLucia EH,Berenbaum MR

更新日期：2010-01-01 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

authors： Camarano S,González A,Rossini C

更新日期：2009-01-01 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

authors： Herms DA,Haack RA,Ayres BD

更新日期：1991-08-01 00:00:00

abstract：:Many compounds related to (+)-bornyl acetate (a sex phero-mone mimic of the American cockroach) were synthesized and tested for sex pheromonal activity. All compounds except for esters of (+)- and (-)-borneol were inactive, whereas (+)-bornyl acetate (Ib) and propionate (Ic) showed the activity at 0.05 mg. Although (-...

journal_title：Journal of chemical ecology

authors： Manabe S,Nishino C

更新日期：1983-03-01 00:00:00

abstract：:Male spruce budworm [Chorisloneura fumiferana (Clem.)] moths were held for 3 hr in a wind tunnel and subjected to various concentrations of background synthetic pheromone. They were then exposed to calling females and their response was recorded. The background pheromone was presented either as discrete turbulent plum...

journal_title：Journal of chemical ecology

authors： Sanders CJ

更新日期：1982-02-01 00:00:00

abstract：:Bacillus subtilis strains are known to produce a vast array of antimicrobial compounds. However, some compounds remain to be identified. Disk assays performed in vitro with Bacillus subtilis CU12 showed a significant reduction in mycelial growth of Alternaria solani, Botrytis cinerea, Fusarium sambucinum, and Pythium ...

journal_title：Journal of chemical ecology

authors： Wise C,Novitsky L,Tsopmo A,Avis TJ

更新日期：2012-12-01 00:00:00

abstract：:Maize roots respond to feeding by larvae of the beetle Diabrotica virgifera virgifera by releasing (E)-beta-caryophyllene. This sesquiterpene, which is not found in healthy maize roots, attracts the entomopathogenic nematode Heterorhabditis megidis. In sharp contrast to the emission of virtually only this single compo...

journal_title：Journal of chemical ecology

authors： Hiltpold I,Turlings TC

更新日期：2008-05-01 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

authors： López P,Amo L,Martín J

更新日期：2006-02-01 00:00:00

abstract：:Steroidal glycoalkaloids, found in species of the Solanaceae, elicit bursting activity in galeal and tarsal chemosensilla of adult Colorado potato beetles. The effect has an average latency of 6-12 sec, depending on the sensillum/alkaloid combination. A 20-sec alkaloid treatment is often suffficient to render galeal s...

journal_title：Journal of chemical ecology

authors： Mitchell BK,Harrison GD

更新日期：1985-01-01 00:00:00

abstract：:The sex pheromone ofCydia toreuta (Grote), the eastern pine seedworm, was investigated using electroantennogram (AG) measurements, gas chromatography (combined GC-FID-EAD) measurements, and field tests. (E,Z)-8,10-dodecadienyl acetate (E,Z8,10-12:Ac) and (E,E)-8,10-dodecadienyl actetate (E,E8,10-12: Ac) produced both ...

journal_title：Journal of chemical ecology

authors： Katovich SA,Swedenborg PD,Giblin M,Underhill EW

更新日期：1989-02-01 00:00:00

abstract：:Dufour's gland is the origin of the trail pheromone of Gnamptogenys striatula. Chemical analysis of the glandular extracts revealed a series of new natural products, especially esters of (2E)-3,4,7-trimethyl-2,6-octadien-1-ol (4-methylgeraniol), and (2E)-3,4,7-trimethyl-2,6-nonadien-1-ol (a bishomogeraniol isomer) wit...

journal_title：Journal of chemical ecology

authors： Blatrix R,Schulz C,Jaisson P,Francke W,Hefetz A

更新日期：2002-12-01 00:00:00

abstract：:The genetic nature of pheromone variation within species has rarely been studied, and never for male-produced long-range pheromones. Males from western North American populations of Ips pini produce predominantly (R)-(-)-ipsdienol, whereas those from eastern North American populations produce higher proportions of (S)...

journal_title：Journal of chemical ecology

authors： Domingue MJ,Starmer WT,Teale SA

更新日期：2006-05-01 00:00:00

abstract：:Plants perceive insect herbivores via a sophisticated surveillance system that detects a range of alarm signals, including herbivore-associated molecular patterns (HAMPs). Fatty acid-amino acid conjugates (FACs) are HAMPs present in oral secretions (OS) of lepidopteran larvae that induce defense responses in many plan...

journal_title：Journal of chemical ecology

authors： Grissett L,Ali A,Coble AM,Logan K,Washington B,Mateson A,McGee K,Nkrumah Y,Jacobus L,Abraham E,Hann C,Bequette CJ,Hind SR,Schmelz EA,Stratmann JW

更新日期：2020-03-01 00:00:00

abstract：:The protein-precipitating capacities of tanniferous extracts from immature and mature leaves of threeShorea spp. (Dipterocarpaceae) seedlings were measured by an adaptation of Goldstein and Swain's β-glucosidase precipitation assay. Protein precipitation by the extracts was not correlated with total phenolics (Folin-D...

journal_title：Journal of chemical ecology

authors： Becker P,Martin JS

更新日期：1982-11-01 00:00:00

abstract：:Communication during tandem running inPachycondyla obscuricornis is chemically mediated by a pheromone produced in the pygidial gland, which is composed of a cluster of gland cells and an associated reservoir located beween the 6th and 7th tergites of the gaster. The secretion of the gland appears to be transferred to...

journal_title：Journal of chemical ecology

authors： Traniello JF,Hölldobler B

更新日期：1984-05-01 00:00:00

abstract：:Evidence for the the ability of birds to detect olfactory signals is now well documented, yet it remains unclear whether birds secrete chemicals that can be used as social cues. A potential source of chemical cues in birds is the secretion from the uropygial gland, or preen gland, which is thought to waterproof, maint...

journal_title：Journal of chemical ecology

authors： Tuttle EM,Sebastian PJ,Posto AL,Soini HA,Novotny MV,Gonser RA

更新日期：2014-09-01 00:00:00

abstract：:Adult females of Monochamus alternatus are known to use palpation to recognize oviposition scars that contain eggs and to be deterred from oviposition. This study investigated the oviposition-deterring activity of a jellylike secretion deposited by the females immediately after oviposition and methanol extracts of fem...

journal_title：Journal of chemical ecology

authors： Anbutsu H,Togashi K

更新日期：2001-06-01 00:00:00

abstract：:Microplitis croceipes is a solitary parasitoid that specializes on noctuid larvae of Helicoverpa zea and Heliothis virescens. Both the parasitoid and its hosts are naturally distributed across a large part of North America. When parasitoids deposit their eggs into hosts, venom and polydnaviruses (PDVs) are also inject...

journal_title：Journal of chemical ecology

authors： Tan CW,Peiffer M,Hoover K,Rosa C,Felton GW

更新日期：2019-12-01 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

authors： Kamm JA

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

authors： Katariya L,Ramesh PB,Gopalappa T,Desireddy S,Bessière JM,Borges RM

更新日期：2017-10-01 00:00:00

abstract：:A detailed characterization of two humic fractions was performed: One with low relative molecular mass (LMr<3,500 Da) and one with high relative molecular mass (HMr>3,500 Da). Distinct (1)H NMR spectroscopic patterns were observed for the two fractions. HMr showed an aromatic proton region, an intense and broad region...

journal_title：Journal of chemical ecology

authors： Muscolo A,Sidari M,Francioso O,Tugnoli V,Nardi S

更新日期：2007-01-01 00:00:00