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, which was leached from the rotting straw into surrounding water. Fresh straw treated with strong alkali to remove phenolics did not show a radical signal. The possible effect of a dissolved stable free radical is discussed in relation to the antagonistic effect of rotting straw on algal and cyanobacterial growth in water to which straw has been added as a nuisance algal control agent.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Pillinger JM,Cooper JA,Harding CJdoi
10.1007/BF02029950subject
Has Abstractpub_date
1996-05-01 00:00:00pages
1001-11issue
5eissn
0098-0331issn
1573-1561journal_volume
22pub_type
杂志文章abstract::In field experiments in the Okanagan Valley, British Columbia, the pheromone blend of (11Z)-tetradecen-1-ol acetate (Z11-14:OAc), (11E)-tetradecen-1-ol acetate (E 11-14:OAc), (9Z)-tetradecen-1-ol acetate (Z9-14:OAc) and dodecan-1-ol acetate (12: OAc) at a 100∶64∶2∶1 ratio (western FTLR blend) attracted significantly m...
journal_title:Journal of chemical ecology
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abstract::Potato cyst nematodes (PCNs) are a major pest of solanaceous crops such as potatoes, tomatoes, and eggplants and have been widely studied over the last 30 years, with the majority of earlier studies focusing on the identification of natural hatching factors. As a novel approach, we focused instead on chemicals involve...
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
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abstract::Chemical orientation of adult maleSchistosoma mansoni was studied during cultivation in vitro. Directional preference was assessed in culture vessels marked with compass coordinates by the application of circular statistics for determining clustering and orientation to a predicted direction. Organic solvent extracts o...
journal_title:Journal of chemical ecology
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journal_title:Journal of chemical ecology
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abstract::The presence of Palmer amaranth (AMAPA) residues in the soil reduced fresh weight accumulation in onions and carrots and markedly decreased seedling field establishment of carrots. Solid-phase separation techniques were used to isolate fractions containing water-soluble organic compounds from AMAPA residues and soil a...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
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更新日期:1987-01-01 00:00:00
abstract::Larvae ofDanaus plexippus feed almost exclusively on milkweed species of the genusAsclepias, whose characteristic secondary metabolites are cardiac glycosides (CGs). Aposematic last-instar larvae were fed with ouabain and other cardiac glycosides of differing polarities. Time course experiments show that ouabain is se...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF02033701
更新日期:1995-05-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
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更新日期:1992-07-01 00:00:00
abstract::Mycorrhizas are the most important mutualistic symbioses on earth. The most prevalent type are the arbuscular mycorrhizas (AMs) that develop between roots of most terrestrial plants and fungal species of the Zygomycota. The AM fungi are able to grow into the root cortex forming intercellular hyphae from which highly b...
journal_title:Journal of chemical ecology
pub_type: 杂志文章,评审
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更新日期:2003-09-01 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
pub_type: 杂志文章
doi:10.1007/BF01012193
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00984949
更新日期:1992-12-01 00:00:00
abstract::Responses ofRhagoletis pomonella (Walsh) (Diptera: Tephritidae) flies to host fruit visual stimuli (apples or models of apples) and chemical stimuli (synthetic apple volatile blend) were studied in semidwarf field-caged apple trees. Three different fruit or model densities (1, 4, or 16 fruit or models/ tree) and two o...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00980700
更新日期:1993-11-01 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
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更新日期:2003-02-01 00:00:00
abstract::Polydimethylsiloxane (PDMS) materials were used to quantify levels of the photosynthesis inhibitor sorgoleone in the undisturbed rhizosphere of sorghum plants. The materials used included stir bars coated with PDMS (stir bar sorptive extraction), technical grade optical fiber coated with a thin film of PDMS (matrix-so...
journal_title:Journal of chemical ecology
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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::In 2002-2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (-)-alpha-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North ...
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更新日期:2004-11-01 00:00:00
abstract::The silkworm Bombyx mori is a molecular genetic model for the Lepidoptera. Its odorant receptor genes have been described, and preliminary studies suggest that several are expressed specifically in the larval caterpillar stage. This study was undertaken to identify olfactory behaviors specific to the larvae. A two-cho...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-009-9639-z
更新日期:2009-05-01 00:00:00
abstract::Termite colonies are almost always founded by a pair of winged dispersers, in spite of the high costs and low success rates inherent in independent colony foundation. The dispersal flights of imagoes from natal colonies are followed by mate search, mediated by sex-pairing pheromones. Here, we studied the chemistry of ...
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pub_type: 杂志文章
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更新日期:2018-06-01 00:00:00
abstract::Quantities of attractive (exo-brevicomin and frontalin) and inhibitory (trans-verbenol, verbenone, and ipsdienol) pheromones were monitored in both sexes ofDendroctonus brevicomis during their colonization of a ponderosa pine. Verbenone was found in males in the greatest amounts at the time of landing, and it declined...
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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
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
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abstract::Levels of phenolic secondary metabolites in the leaves of four west African rain-forest plants,Acacia pennata, Cynometra leonensis, Diopyros thomasii, andTrema guineensis, were correlated with incident light intensity at both the inter- and intraindividual level. Enhanced phenolic levels under high light intensity app...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
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更新日期:1994-08-01 00:00:00
abstract::Two genetically diverse strains of Trypanosoma cruzi were tested in vitro for susceptibility to the solanum-derived triglycoside alkaloids solasonine and solamargine. Cytolytic assays were performed on epimastigotes (EMs) and bloodstream form trypomastigotes (BSFs) lifecycle stages by using serial dilutions of each al...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
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更新日期:2006-11-01 00:00:00