Baldcypress allelochemics and the inhibition of silkworm enteric microorganisms Some Ecological Considerations.

abstract：:Many parasitic wasps are attracted to volatiles that are released by plants when attacked by potential hosts. The attractiveness of these semiochemicals from damaged plants has been demonstrated in many tritrophic systems, but the physiological mechanisms underlying the insect responses are poorly understood. We recor...

journal_title：Journal of chemical ecology

authors： Gouinguené S,Pickett JA,Wadhams LJ,Birkett MA,Turlings TC

更新日期：2005-05-01 00:00:00

abstract：:The onion fly Delia antiqua is a specialist herbivore attacking only onions and closely related Allium species. n-Dipropyl disulfide (Pr2S2) has long been known to be attractive to onion flies in the laboratory and in the field. However, the insect's response is highly variable. Using behavioral bioassays we found tha...

journal_title：Journal of chemical ecology

authors： Romeis J,Ebbinghaus D,Scherkenbeck J

更新日期：2003-09-01 00:00:00

abstract：:The role of intracellular symbionts contributing to their host has been investigated in the planthoppers,Nilaparvata lugens Stal andLaodelphax striatellus Fallen. We have found that the isolated yeastlike symbionts, identified as a member of the genusCandida, from the host's egg produce ergosterol when cultured. A com...

journal_title：Journal of chemical ecology

authors： Eya BK,Kenny PT,Tamura SY,Ohnishi M,Naya Y,Nakanishi K,Sugiura M

更新日期：1989-01-01 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

authors： Honda H,Yamasaki R,Sumiuchi Y,Uehara T,Matsuyama S,Ando T,Naka H

更新日期：2015-11-01 00:00:00

abstract：:The effects of coumarin on the length, diameter, and branching density of different root types in maize seedlings (Zea mays L. cv. Cecilia) were investigated. The maize root system represents a useful model for morphological studies, as it consists of radicle, seminal, and nodal roots whose origin and development are ...

journal_title：Journal of chemical ecology

authors： Abenavoli MR,Sorgonà A,Albano S,Cacco G

更新日期：2004-09-01 00:00:00

abstract：:Several experiments have been conducted at the University of Illinois, Urbana, Illinois, to determine the role of allelopathic (autotoxicity) effects of alfalfa (Medicago sativa L.) on the establishment of alfalfa. By means of correcting any soil fertility differences and protecting the alfalfa seedlings from fungal a...

journal_title：Journal of chemical ecology

authors： Miller DA

更新日期：1983-08-01 00:00:00

abstract：:All possible isomeric mono-methylpentacosanes as well as 2,6-, 2,8-, 2,10-, 2,12-, and 2,14-dimethylheptacosane were synthesized. The [(13)C]NMR shifts and the Kovats indices were determined, and the relationship to separation of isomeric mixtures of insect cuticular waxes are discussed. When several homologous series...

journal_title：Journal of chemical ecology

authors： George Pomonis J,Hakk H,Fatland CL

更新日期：1989-09-01 00:00:00

abstract：:Volatile chemicals produced by plants mediate host location, mate-finding and oviposition behavior in insects. State-dependent response to plant cues allows for timing of foraging, mating and oviposition on ephemeral host plants or plant parts. Caloptilia fraxinella is a herbivorous specialist on the foliage of ash tr...

journal_title：Journal of chemical ecology

authors： Lemmen-Lechelt JK,Wist TJ,Evenden ML

更新日期：2018-03-01 00:00:00

abstract：:Immature, starved, or multiply mated males of the staphylinid beetle,Aleochara curtula, mimic their females chemically. The titer of the female sex pheromone components (Z)-7-heneicosene and (Z)-7-tricosene was quantified for various physiological types and both sexes by gas chromatography and correlated with the sexu...

journal_title：Journal of chemical ecology

authors： Peschke K

更新日期：1987-10-01 00:00:00

abstract：:Tarbush (Flourensia cernua DC) is a native perennial shrub prevalent in many parts of the Chihuahuan Desert. Ruminants have exhibited limited use of tarbush leaves and new leaders as a forage during the summer growing season. Efforts to increase use of tarbush by lambs through spraying with various organic solvents we...

journal_title：Journal of chemical ecology

authors： Estell RE,Anderson DM,Havstad KM

更新日期：1994-05-01 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

authors： Tierney AJ,Atema T

更新日期：1988-01-01 00:00:00

abstract：:Visual and acoustic cues may serve as aposematic signals that warn predators of poisonous foods. Olfactory aposematism, the use of innocuous odors as warning signals for toxic foods, is another possible means of alerting an animal that a potential food item is unpalatable. Although it has been suggested that olfactory...

journal_title：Journal of chemical ecology

authors： Camazine S

更新日期：1985-09-01 00:00:00

abstract：:Four species of Acridoidea were fed on wheat leaves with and without the condensed tannin, quebracho. In no case was it deleterious to survival and growth at levels below about 10% dry weight on the food. Similarly, consumption, digestibility, and utilization of food were unaffected at up to 10% dry weight. At higher ...

journal_title：Journal of chemical ecology

authors： Bernays EA,Chamberlain DJ,Leather EM

更新日期：1981-03-01 00:00:00

abstract：:We conducted defoliation experiments with 7- to 8-year-old clones of Douglas fir [Pseudotsuga menziesii (Mirb.) Franco var. glauca] to assess the role of monoterpenes as a resistance mechanism to western spruce budworm (Choristoneura occidentalis Freeman) defoliation. The grafted clones were derived from mature trees ...

journal_title：Journal of chemical ecology

authors： Chen Z,Kolb TE,Clancy KM

更新日期：2002-05-01 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：:Jasmonic acid (JA) is a key molecule initiating plant defensive responses to herbivory. Our previous work has shown that this phytohormone is often present at high concentrations in eggs and neonates of lepidopteran species. In this work, we document the concentrations of JA found in various tissues of larval H. vires...

journal_title：Journal of chemical ecology

authors： Tooker JF,De Moraes CM

更新日期：2006-10-01 00:00:00

abstract：:Lichen secondary metabolites putatively protect lichens from a variety of environmental stress factors, but it is unknown whether these substances respond to air pollution. To assess such a possibility, the three major phenolics of two epiphytic lichen species with contrasting tolerance to chronic air pollution from M...

journal_title：Journal of chemical ecology

authors： Valencia-Islas N,Zambrano A,Rojas JL

更新日期：2007-08-01 00:00:00

abstract：:Of the aglycone flavonoids identified in the exudate of cistus ladanifer, two, the flavone apigenin-4'-(O)-methyl and the flavonol kaempferol-3,7-di(O)-methyl inhibit development of the seedlings of Rumex crispus at 0.5 and 1 mM. Additive effects were observed between the major flavonols of the exudate kaempferol-3-(O...

journal_title：Journal of chemical ecology

authors： Chaves N,Sosa T,Escudero JC

更新日期：2001-03-01 00:00:00

abstract：:The herbivore-induced response of alfalfa (Medicago sativa) was examined through assays with Spodoptera littoralis larvae and analyses of important secondary substances. In food preference experiments, larvae preferred young undamaged alfalfa plants over plants that had been damaged by feeding larvae 5 and 7 days earl...

journal_title：Journal of chemical ecology

authors： Agrelli J,Oleszek W,Stochmal A,Olsen M,Anderson P

更新日期：2003-02-01 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

authors： Barja I,Silván G,Martínez-Fernández L,Illera JC

更新日期：2011-03-01 00:00:00

abstract：:Multicomponent pheromone systems are common in many insect species. As our knowledge about the number of different chemical compounds actually involved in a particular communication system increases, so too does the need for an efficient neural mechanism for the encoding of behaviorially relevant odor compounds. Here ...

journal_title：Journal of chemical ecology

authors： O'Connell RJ,Beauchamp JT,Grant AJ

更新日期：1986-02-01 00:00:00

abstract：:High foliar phenolics are generally assumed to increase resistance to insect herbivores, but recent studies show that tobacco lines modified to over- and underexpress phenolics do not exhibit higher constitutive resistance to caterpillars. This is contrary to the expectation that ingestion of tobacco phenolics, partic...

journal_title：Journal of chemical ecology

authors： Johnson KS,Felton GW

更新日期：2001-12-01 00:00:00

abstract：:Attempted purification of synthetic racemic grandisal1 by silica gel chromatography resulted in severe decomposition. The nature of this reaction was studied on silica gel and in an ether solution ofp-toluenesulfonic acid. The same products resulted from both reaction systems, although in different ratios. Five racemi...

journal_title：Journal of chemical ecology

authors： Webster FX,Zeng XN,Silverstein RM

更新日期：1987-07-01 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

authors： Do ND,Ohbayashi K,Naka H,Nakada K,Ando T

更新日期：2011-11-01 00:00:00

abstract：:The soldier frontal gland secretion ofNasutitermes princeps induces strong short-range caste-specific alarm and attraction in both soldiers and workers. Soldiers are excited and patrol the surroundings of the source. The secretion per se does not induce ejection of additional secretion. Large workers of the second sta...

journal_title：Journal of chemical ecology

authors： Roisin Y,Everaerts C,Pasteels JM,Bonnard O

更新日期：1990-10-01 00:00:00

abstract：:The response of the sawtoothed grain beetle,Oryzaephilus surinamensis (L.), and the merchant grain beetle,O. mercator (Fauvel), to synthetic racemic and chiral macrolide aggregation pheromones was assessed in pitfall olfactometers.O.mercator utilizes theR enantiomers of (Z)-3-dodecen-11-olide and (Z,Z)-3,6-dodecadien-...

journal_title：Journal of chemical ecology

authors： Pierce AM,Pierce HD Jr,Oehlschlager AC,Czyzewska E,Borden JH

更新日期：1987-06-01 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：:The cardenolide content of the gut, wings, and fat body ofOncopeltus fasciatus was examined. The female fat body contained 4-5% of the total cardenolide content of the insect. The cardenolide content of male fat body, and gut and wings of both sexes was below the detection limit of the cardenolide assay. Thin-layer ch...

journal_title：Journal of chemical ecology

authors： Moore LV,Scudder GG

更新日期：1985-05-01 00:00:00

abstract：:The potent phytotoxic trichothecene roridins and baccharinoids occur naturally in the Brazilian plants,Baccharis coridifolia andB. megapotamica. Biosynthesis of roridins inB. coridifolia appears to be linked to pollination, and the phytotoxins then accumulate in the seed. The roles of the phytotoxins in pollination, s...

journal_title：Journal of chemical ecology

authors： Kuti JO,Jarvis BB,Mokhtari-Rejali N,Bean GA

更新日期：1990-12-01 00:00:00

abstract：:Four acetates,Z-5-decenyl acetate,Z-5-,Z-7-, andZ-9-dodecenyl acetates, in microgram ratios of 1∶200∶2∶1 or 1∶200∶6∶2 were excellent, specific sex pheromone blends for capturing male redbacked cutworm moths in cone traps. Blends in ratios of 1∶200∶2∶1 and 2∶200∶2∶1 at 1000 μg/ rubber septum dispenser remained highly e...

journal_title：Journal of chemical ecology

authors： Struble DL

更新日期：1981-05-01 00:00:00