Inhibition of salvinia (Salvinia molesta Mitchell) by parthenium (Parthenium hysterophorus L.). I. Effect of leaf residue and allelochemicals.

abstract：:The biological activity of aqueous extracts of velvetleaf (Abutilon theophrasti Medik.) seed coats and their flavonoid components against three plant species and five soil fungi was investigated. Aqueous extracts slightly inhibited germination and significantly inhibited radicle growth of all plant species tested. Fun...

journal_title：Journal of chemical ecology

authors： Paszkowski WL,Kremer RJ

更新日期：1988-07-01 00:00:00

abstract：:The sex pheromone components of the two sibling species of the dingy cutworm that occur on the prairies of western Canada were identified in abdomen-tip extracts from calling female moths. Three monounsaturated acetates, (Z)-7-dodecenyl acetate, (Z)-9-tetradecenyl acetate, and (Z)-11-hexadecenyl acetate, are common to...

journal_title：Journal of chemical ecology

authors： Byers JR,Struble DL

更新日期：1990-10-01 00:00:00

abstract：:Chemosensory proteins (CSPs) have been proposed to capture and transport hydrophobic chemicals to receptors on sensory neurons. We identified and cloned 24 CSP genes to better understand the physiological function of CSPs in Helicoverpa armigera. Quantitative real-time polymerase chain reaction assays indicate that CS...

journal_title：Journal of chemical ecology

authors： Li ZQ,Zhang S,Luo JY,Zhu J,Cui JJ,Dong SL

更新日期：2015-05-01 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：:Membrane feeding studies were conducted to determine the effects of raw juices and chemical extracts of leaves of aphid-resistant (ICV-12) and aphid-susceptible (ICV-1) cultivars of cowpea [Vigna unguiculata L. (Walp.)], on the survival, growth, and reproduction of cowpea aphidAphis craccivora Koch. Life table and dem...

journal_title：Journal of chemical ecology

authors： Annan IB,Tingey WM,Schaefers GA,Saxena KN

更新日期：1996-07-01 00:00:00

abstract：:Simple inorganic salts of the ions K(+), NH 4 (+) , Cs(+), NO 3 (-) , and Cl(-) are strongly repellent to infective second-stage larvae of the root knot nematode,Meloidogyne incognita. Some of these salts are known to be beneficial to plant growth. The results suggest a new means of plant protection. ...

journal_title：Journal of chemical ecology

authors： Castro CE,Belser NO,McKinney HE,Thomason IJ

更新日期：1990-04-01 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

authors： Heil M

更新日期：2004-06-01 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

authors： Tolasch T,von Fragstein M,Steidle JL

更新日期：2010-03-01 00:00:00

abstract：:The synthesis of the major component of the sex pheromone of the processionary mothThaumetopoea pityocampa is described. The synthesis uses the carbocupration of acetylene, followed by the coupling with the appropriate 1-iodoalkyne. This synthetic pheromone was shown to be of 98.8%Z purity. ...

journal_title：Journal of chemical ecology

authors： Gardette M,Alexakis A,Normant JF

更新日期：1983-02-01 00:00:00

abstract：:Aphids have long been recognized as good phytochemists. They are small sap-feeding plant herbivores with complex life cycles that can involve cyclical parthenogenesis and seasonal host plant alternation, and most are plant specialists. Aphids have distinctive traits for identifying and exploiting their host plants, in...

journal_title：Journal of chemical ecology

authors： Abbot P,Tooker J,Lawson SP

更新日期：2018-09-01 00:00:00

abstract：:One commonly observed effect of phytotoxic compounds is the inhibition or delay of germination of sensitive seeds. Mustard (Sinapis alba L.) seeds were incubated with aqueous extracts of sunflower (Helianthus annuus L.) leaves. Although sunflower phytotoxins did not influence seed viability, extracts completely inhibi...

journal_title：Journal of chemical ecology

authors： Kupidłowska E,Gniazdowska A,Stepień J,Corbineau F,Vinel D,Skoczowski A,Janeczko A,Bogatek R

更新日期：2006-12-01 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：: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

authors： Papaj DR,Vet LE

更新日期：1990-11-01 00:00:00

abstract：:Olfactometric bioassays showed that nymphs of crowded desert locusts,Schistocerca gregaria, aggregated in response to volatiles derived from their feces and to volatiles emitted from the feces of young adults, but were indifferent to volatiles emitted by older adult feces. On the other hand, young and older adults wer...

journal_title：Journal of chemical ecology

authors： Obeng-Ofori D,Torto B,Njagi PG,Hassanali A,Amiani H

更新日期：1994-08-01 00:00:00

abstract：:Bioassays were carried out to test extracts of roots and leaves ofPiqueria trinervia and solutions of piquerol A and B, in order to appraise their allelopathic potential. Leaves seem to have greater concentrations of inhibitory compounds than roots. Both piquerol compounds show strong biological activity, but piquerol...

journal_title：Journal of chemical ecology

authors： De La Parra MG,Anaya AL,Espinosa F,Jiménez M,Castillo R

更新日期：1981-05-01 00:00:00

abstract：:The elytra of females of the white-spotted longhorn beetle, Anoplophora malasiaca (Coleoptera: Cerambycidae), are coated with a contact sex pheromone, which was previously shown to be composed of at least three chemical groups. Individually, the chemical groups had little pheromonal activity, but a blend of all three ...

journal_title：Journal of chemical ecology

authors： Fujiwara-Tsujii N,Yasui H,Yasuda T,Wakamura S,Akino T,Fukaya M,Suzuki T,Hoshi T,Hagiwara H,Ono H

更新日期：2019-06-01 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：:The role of extracellular fatty acids in the interference between two algae, Chlorella vulgaris Beijerink and Pseudokirchneriella subcapitata (Korshikov) Hindak, was assessed by the co-cultivation of the two selected strains, as well as by the chemical analysis of exudates from the culture media of single strain cultu...

journal_title：Journal of chemical ecology

authors： DellaGreca M,Zarrelli A,Fergola P,Cerasuolo M,Pollio A,Pinto G

更新日期：2010-03-01 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

authors： Delorme JD,Payne TL

更新日期：1990-04-01 00:00:00

abstract：:MaleGrapholitha molesta hairpencil components are ethyltrans-cinnamate, mellein, methyl jasmonate, and methyl 2-epijasmonate. The natural behavioral effect elicited by hairpencil-displaying males during courtship in attracting sex-pheromone-releasing females from several centimeters away can be duplicated by mixtures ...

journal_title：Journal of chemical ecology

authors： Nishida R,Baker TC,Roelofs WL

更新日期：1982-06-01 00:00:00

abstract：:The feasibility of using the synthetic sex pheromone, disparlure, as a mating confusant of the nun moth (Lymantria monacha L.) was investigated on wild populations occurring in outbreak proportions in Poland and in low density in Czechoslovakia. The size of experimental plots ranged from 1 to 12 hectares. The amounts ...

journal_title：Journal of chemical ecology

authors： Zďárek J,Vrkoč J,Hochmut R,Kolk A

更新日期：1988-02-01 00:00:00

abstract：:Analyses of two-dimensional chromatographic flavonoid patterns of butterflies reared on different grass species have shown that the flavonoid pattern ofMelanargia galathea is dependent on the flavonoid content of the larval diet. This confirms the dietary origin of flavonoid pigments inM. galathea. The flavonoid patte...

journal_title：Journal of chemical ecology

authors： Wilson A

更新日期：1985-09-01 00:00:00

abstract：:Several properties of the compound 3,4-dihydro-2H-pyrrole(A1-pyrroline), which has been reported as a component of the male-produced Mediterranean fruit fly pheromone, have been determined by [(1)H]- and [(13)C]nuclear magnetic resonance spectroscopy. The stability of Δ(1)-pyrroline in several solvents and at moderate...

journal_title：Journal of chemical ecology

authors： Baker JD,Heath RR,Millar JG

更新日期：1992-09-01 00:00:00

abstract：:The fire ant, Solenopsis invicta (Hymenoptera: Formicidae), is considered one of the most aggressive and invasive species in the world. Toxic bait systems are used widely for control, but they also affect non-target ant species and cannot be used in sensitive ecosystems such as organic farms and national parks. The fi...

journal_title：Journal of chemical ecology

authors： Suckling DM,Stringer LD,Bunn B,El-Sayed AM,Vander Meer RK

更新日期：2010-07-01 00:00:00

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)...

journal_title：Journal of chemical ecology

authors： Lea CS,Bradbury SG,Constabel CP

更新日期：2021-01-21 00:00:00

abstract：:When provided a choice between grass species with C3 or C4 photosynthetic pathways, larvae of range caterpillar,Hemileuca oliviae Cockerell, selected C4 grasses. The basis for host selection was examined by conducting analyses of moisture, crude protein, total available carbohydrate, sucrose, glucose, astringency, con...

journal_title：Journal of chemical ecology

authors： Capinera JL,Renaud AR,Roehrig NE

更新日期：1983-10-01 00:00:00

abstract：:The effects of differential leaf water, leaf nitrogen and cyclic hydroxamate (DIMBOA) concentrations in corn seedlings were analyzed for a polyphagous insect, the southern armyworm (Spodoptera eridania Cram.). Six different combinations of nutrients and allelochemicals [DIMBOA = 2,4-dihydroxy-7-methoxy(2H)-benzoxazin-...

journal_title：Journal of chemical ecology

authors： Manuwoto S,Scriber JM

更新日期：1985-11-01 00:00:00

abstract：:Ilex opaca andIlex verticillata are woody species bearing lowquality, bird-dispersed fall fruits that persist for several months. Tests of secondary chemistry show that fruits of both species contain phenolics and saponins as major classes of secondary metabolites. Soluble carbohydrates are the major nutrients in both...

journal_title：Journal of chemical ecology

authors： Gargiullo MB,Stiles EW

更新日期：1991-06-01 00:00:00

abstract：:Chinavia and Nezara spp. stink bugs (Heteroptera: Pentatomidae) include over100 species, with highest diversity in Afrotropical and Neotropical regions. Species thus far studied in these genera utilize trans-(Z)-(4 S)-bisabolene epoxide (BE) and cis-(Z)-(4 S)-BE as major sex pheromone components, with species specific...

journal_title：Journal of chemical ecology

authors： Blassioli-Moraes MC,Laumann RA,Oliveira MW,Woodcock CM,Mayon P,Hooper A,Pickett JA,Birkett MA,Borges M

更新日期：2012-07-01 00:00:00

abstract：:Coniferyl benzoate, a secondary metabolite found in quaking aspen (Populus tremuloides) and other plants, is an avian feeding deterrent of ecological and potential commercial importance. This study was conducted to determine if coniferyl benzoate is a trigeminal stimulant for birds and to ascertain if trigeminal chemo...

journal_title：Journal of chemical ecology

authors： Jakubas WJ,Mason JR

更新日期：1991-11-01 00:00:00