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 attack, results suggest that there is a release of phytotoxic factors from the previous crop on reestablishing alfalfa. Field results indicate that the best preceding crop for alfalfa establishment is corn (Zea mays L.), followed by various small grains, soybeans (Glycine max L.), and the worst preceding crop is alfalfa. Results indicate there were no major genetic differences among cultivars for resistance to autotoxicity. There was no evidence supporting saponins as being phytotoxic to alfalfa. Exudates of different saponin level cultivars indicated that saponin content is not the suspected phytotoxic factor.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Miller DAdoi
10.1007/BF00982211subject
Has Abstractpub_date
1983-08-01 00:00:00pages
1059-72issue
8eissn
0098-0331issn
1573-1561journal_volume
9pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1023/a:1015297315104
更新日期:2002-05-01 00:00:00
abstract::Several plants and invertebrates interact and communicate by means of volatile organic compounds (VOCs). These compounds may play the role of infochemicals, being able to carry complex information to selected species, thus mediating inter- or intra-specific communications. Volatile organic compounds derived from the w...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-015-0610-x
更新日期:2015-08-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/b:joec.0000045588.67710.74
更新日期:2004-10-01 00:00:00
abstract::Locoweeds are Astragalus and Oxytropis species that contain the toxic alkaloid swainsonine. Swainsonine accumulates in all parts of the plant with the highest concentrations found in the above ground parts. A fungal endophyte, Undifilum oxytropis, found in locoweed plant species, is responsible for the synthesis of sw...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-009-9710-9
更新日期:2009-10-01 00:00:00
abstract::The four major components of the setal exudate of nymphs of the andromeda lace bug,Stephanitis takeyai, were identified. They are 7-hydroxy-3-nonylchromanone1, the novel 3,5-dihydroxy-2-dodecanoylcyclohex-2-en-1-one2,2',6'-dihydroxydodecanophenone3, and its 3-hydroxy derivative4. Only three species ofStephanitis commo...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01026934
更新日期:1990-07-01 00:00:00
abstract::Brook charr (Salvelinus fontinalis) lay their eggs in gravel nests called redds. The nests are not defended for extended periods and the eggs and young may be subject to predation from predators that travel through the substrate into the redd. In this study we tested whether long-term exposure of brook charr eggs to c...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1010404624556
更新日期:2001-09-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01014093
更新日期:1990-05-01 00:00:00
abstract::Herbivore-induced plant volatiles (HIPVs) are important cues for natural enemies to find their hosts. HIPVs are usually present as blends and the effects of combinations of individual components are less studied. Here, we investigated plant volatiles in a tritrophic system, comprising the parasitoid wasp Lytopylus ruf...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-019-01088-y
更新日期:2019-08-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00994245
更新日期:1992-03-01 00:00:00
abstract::The enantiomers of analogs of (Z)-5-decenyl acetate, a pheromone component ofAgrotis segetum, substituted by a methyl group in the 2, 3, 4, 7, and 8 positions and dimethyl substituted in the 4,7 positions, have been synthesized and studied by an electrophysiological single-cell technique and by molecular mechanics cal...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00994319
更新日期:1993-03-01 00:00:00
abstract::The significance of the geminal dimethyl group at C-6 of (+)-trans-veibenyl acetate (Ib), a sex pheromone mimic of the American cockroach, was investigated. Our interest was first directed to eliminating either methyl group of the geminal dimethyl group. Consequently, alcohols (IIIa and IVa) possessing a monomethyl gr...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00990225
更新日期:1983-04-01 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
pub_type: 杂志文章
doi:10.1007/BF01402936
更新日期:1991-06-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1020553531658
更新日期:2002-09-01 00:00:00
abstract::Adults and larvae of the thrips Callococcithrips fuscipennis (Moulton) (Thysanoptera: Tubulifera: Phlaeothripidae) live in the sticky wax masses of adult females of the felt scale insect Callococcus acaciae (Maskell) (Sternorrhyncha: Coccoidea: Eriococcidae). The scale is sessile and feeds on Kunzea shrubs (Myrtales: ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-008-9494-3
更新日期:2008-06-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01015183
更新日期:1989-03-01 00:00:00
abstract::Acrolepiopsis assectella andPlutella xylostella frass volatiles, trapped on Tenax GC, were examined by capillary gas chromatography. In both moths, the same three disulfides, dimethyl, dipropyl, and methyl propyl, were the most abundant substances, but in different proportions. The synthetic disulfides elicited the sa...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01014838
更新日期:1989-04-01 00:00:00
abstract::Plant defensive compounds may be a cost rather than a benefit when plants are attacked by specialist insects that may overcome chemical barriers by strategies such as sequestering plant compounds. Plants may respond to specialist herbivores by compensatory growth rather than chemical defense. To explore the use of def...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-011-9955-y
更新日期:2011-05-01 00:00:00
abstract::Several major chemicals in the glandular heads of type VI trichomes ofLycopersicon species were identified and quantified by gas chromatography and mass spectrometry. Two normal odd-chained ketones, 2-undecanone (47 ng) and 2-tridecanone (146 ng), and one unknown sesquiterpene (5 ng), comprised approximately 95% of th...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01020164
更新日期:1987-04-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-006-9149-1
更新日期:2006-11-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-005-7108-x
更新日期:2005-10-01 00:00:00
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journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-004-7949-8
更新日期:2004-12-01 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
pub_type: 杂志文章
doi:10.1007/BF01403099
更新日期:1982-11-01 00:00:00
abstract::Three compounds have been identified as sex pheromone components produced by female fall webworm moths,Hyphantria cunea (Drury). These compounds are: (Z,Z)-9,12-octadecadienal (I), (Z,Z,Z)-9,12,15-octadecatrienal (II), and (Z,Z)-3,6-cis-9,10-epoxyheneicosadiene (III). The ratio of these compounds was approximately 5∶6...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00987787
更新日期:1982-02-01 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
pub_type: 杂志文章
doi:10.1007/s10886-005-0974-4
更新日期:2005-01-01 00:00:00
abstract::The Dufour's gland of the parasitic waspNemeritis (= Venturia) canescens (Grav.) was shown by gas chromatography and mass spectrometry to contain a mixture of C21, C23, and C25 saturated and monounsaturated hydrocarbons. The main component (62%) was (Z)-10-tricosene. The biological activity of the components is discus...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00987884
更新日期:1982-07-01 00:00:00
abstract::In this study, we compared the effects of several preservation methods on the secondary phenolics of the mature leaves of purple willow (Salix purpurea L., salicaceae) with results obtained with fresh leaf analyses. Conventional freeze-drying, in which the leaves were first frozen with liquid nitrogen and then placed ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1010358120482
更新日期:2001-04-01 00:00:00
abstract::Phenolic compounds have been identified as the most common allelochemicals produced by higher plants. Inhibitions of cinnamic acid, its related phenolic derivatives, and abscisic acid (ABA) on seedling growth and seed germination of lettuce were studied.trans-Cinnamic acid, ando-,m-, andp-coumaric acids inhibited the ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00982307
更新日期:1993-08-01 00:00:00
abstract::Male olive fruit fly attraction to the four synthetic components of the female sex attractant pheromone was studied under laboratory and field conditions. In laboratory tests males responded to all four components tested separately. Component I, (1,7-dioxaspiro[5.5]undecane) was more attractive than any of the remaini...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01411425
更新日期:1985-03-01 00:00:00
abstract::The effect of protein and birch bark powder (BBP) content of forage on detoxification capacity of root voles (Microtus oeconomus) was studied. Young voles were fed with eight different diets for two weeks. Individuals on low (3%) protein diets had significantly lighter livers and kidneys than those on moderate (6%) or...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF02033581
更新日期:1996-04-01 00:00:00
abstract::The analyses of virgin female sex pheromone gland extracts by gas chromatography (GC), GC-electroantennographic detection (GC-EAD) and GC-mass spectrometry (GC-MS) followed by field-trapping experiments, have identified (E)-9-tetradecenyl acetate (E9-14:Ac) as the primary sex pheromone component of the spruce budmoth,...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01020374
更新日期:1989-10-01 00:00:00