Abstract:
:The allelopathic interaction between sorghum [Sorghum bicolor (L.) Moench] and 10 species of grass and broadleaf weeds was investigated. Germination of weed seeds was slightly inhibited or stimulated, depending on species, when incubated in closed Petri dishes with germinating sorghum. Subsequent radicle and hypocotyl or coleoptile elongation of weeds was significantly inhibited by the germinating sorghum. For weeds interplanted with sorghum and grown under greenhouse conditions. The inhibitory effect on some weed species was still evident after 2 months of growth. Significant differences were found in the dry matter per weed plant grown in pots in proximity to sorghum vs. weeds grown in monoculture. Aqueous leachates from pots planted with sorghum alone or from a system in which sorghum roots protruded into water had strong allelopathic activity. These results indicate that water-soluble allelochemicals are produced by germinating sorghum seeds and that production of these substances continues during seedling growth.
journal_name
J Chem Ecoljournal_title
Journal of chemical ecologyauthors
Panasiuk O,Bills DD,Leather GRdoi
10.1007/BF01012370subject
Has Abstractpub_date
1986-06-01 00:00:00pages
1533-43issue
6eissn
0098-0331issn
1573-1561journal_volume
12pub_type
杂志文章abstract::The Yunnan pine caterpillar Dendrolimus houi Lajonquière is a serious defoliator of coniferous forests in southwestern China. Gas chromatography-electroantennography (GC-EAG) analyses of extracts of female sex pheromone glands of D. houi moths revealed the presence of three compounds eliciting antennal responses. Thes...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-007-9313-2
更新日期:2007-07-01 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
pub_type: 杂志文章
doi:10.1007/BF00988039
更新日期:1983-02-01 00:00:00
abstract::The influence of mustelid anal-gland compounds on population dynamics of the deer mouse (Peromyscus maniculatus) was investigated. Densities of deer mice were not found to be significantly different between treated and control areas. However, on average, numbers of deer mice were lower on treated areas following the J...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF02059606
更新日期:1994-03-01 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
pub_type: 杂志文章
doi:10.1007/s10886-010-9810-6
更新日期:2010-07-01 00:00:00
abstract::Populations ofAedes sierrensis (Ludlow) completed development in tannic acid solutions over a wide concentration range (i.e., 0-1.0 g/liter) in artificial microcosms exposed to field conditions. The most notable effects of high tannic acid concentration were to slow larval developmental rates and to reduce numbers of ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00987373
更新日期:1993-06-01 00:00:00
abstract::Three adult cave-dwelling ground beetle species were induced to discharge secretions of their pygidial glands into vials. Dichloromethane extraction was used to obtain the secretions. In total, 42 compounds were identified by GC/MS analysis. Pheggomisetes ninae contained 32 glandular compounds, Laemostenus (Pristonych...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-015-0593-7
更新日期:2015-06-01 00:00:00
abstract::Chemical communication is a dominant method of communication throughout the animal kingdom and can be especially important in group-living animals in which communicating threats, either from predation or other dangers, can have large impacts on group survival. Social insects, in particular, have evolved a number of ph...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-017-0821-4
更新日期:2017-03-01 00:00:00
abstract::Bark beetles (Coleoptera: Curculionidae, Scolytinae) have specialized feeding habits, and commonly colonize only one or a few closely related host genera in their geographical ranges. The red turpentine beetle, Dendroctonus valens LeConte, has a broad geographic distribution in North America and exploits volatile cues...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-006-9200-2
更新日期:2007-01-01 00:00:00
abstract::A previous study showed that Sitka black-tailed deer (Odocoileus hemionus sitkensis) consumption was negatively correlated with monoterpene content in western redcedar (Thuja plicata). To test whether these monoterpenes were deterrent to Sitka black-tailed deer, we performed feeding choice experiments with four hydroc...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1021423816695
更新日期:2002-12-01 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::Bioassays with a variety of overripe fruits, including mango, plum, pear, and grape, and their extracts showed that odors from overripe mango were most attractive to adult vinegar flies, Drosophila melanogaster. Combined gas chromatography-electroantennographic detection (GC-EAD) analyses of solid-phase microextractio...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1022931816351
更新日期:2003-04-01 00:00:00
abstract::The synthetic aggregation pheromone of the large milkweed bug, Oncopeltus fasciatus (Dallas) (Lygaeinae), also attracted males of the plant bug, Phytocoris difficilis Knight (Miridae). Field testing partial blends against the six-component blend comprising the Oncopeltus pheromone showed that cross-attraction of P. di...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1023/a:1024850211619
更新日期:2003-08-01 00:00:00
abstract::Previous analyses of the scent gland secretions of snakes have focused on the nonvolatile components. Gas chromatography-mass spectrometry of secretions from North American garter snakes (Thamnophis butleri, T. couchi, T. elegans, T. melanogaster, andT. sirtalis) indicated the following seven major volatile components...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF02036652
更新日期:1995-02-01 00:00:00
abstract::Sasa (Sasa cernua Makino) is a very serious weed pest. Its allelopathy was studied using lettuce, wheat, timothy, and green amaranth as testing species. Cultured in the rhizosphere soil ofSasa cernua, the seedlings were inhibited by 42-80% compared with the controls cultured in normal soil and vermiculite. The phenoli...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF02751103
更新日期:1992-10-01 00:00:00
abstract::Various applications of a novel sampling procedure in chemical ecology are outlined. The stir bar extraction method features the analytical reproducibility needed in recording the analytical profiles of volatile and semivolatile components of biological mixtures. This methodology has been demonstrated here through the...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-005-1347-8
更新日期:2005-02-01 00:00:00
abstract::The attractiveness to male navel orangeworm moth, Amyelois transitella, of various combinations of a four-component pheromone blend was measured in wind-tunnel bioassays. Upwind flight along the pheromone plume and landing on the odor source required the simultaneous presence of two components, (11Z,13Z)-hexadecadiena...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-010-9799-x
更新日期:2010-06-01 00:00:00
abstract::Aggregation pheromones were isolated fromCryptolestes pusillus (Schönherr), a coleopteran pest of stored products. Porapak Q-captured beetle and frass volatiles were fractionated by preparative gas-liquid chromatography. The fractions were bioassayed with an arena olfactometer and/or with a two-choice, pitfall olfacto...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01020675
更新日期:1985-08-01 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
pub_type: 杂志文章
doi:10.1007/s10886-006-9206-9
更新日期:2007-01-01 00:00:00
abstract::During development of figs on Ficus hispida, only the female floral stage is receptive to its pollinator Ceratosolen solmsi marchali. After this stage, the quantity of fig odor decreases. The effects of F. hispida volatiles from receptive figs (figs at the female floral stage, when they are pollinated) and interfloral...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-008-9558-4
更新日期:2008-12-01 00:00:00
abstract::Fertile queens of the antMonomorium pharaonis produce a chemical substance which is not present in worker ants or in young, alate (virgin) queens. The material has been identified as (E,E,E)-1-isopropenyl-4,8,12-trimethylcyclotetradeca-3,7,11-triene (neocembrene). This chemical is produced in the Dufour's gland of fer...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00987358
更新日期:1984-12-01 00:00:00
abstract::Yeast-insect interactions have been well characterized in drosophilid flies, but not in tephritid fruit flies, which include many highly polyphagous pest species that attack ripening fruits. Using the Queensland fruit fly (Bactrocera tryoni) as our model tephritid species, we identified yeast species present in the gu...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-017-0877-1
更新日期:2017-09-01 00:00:00
abstract::Phorodon humuli (Damson-hop aphid) is one of the major pests of hops in the northern hemisphere. It causes significant yield losses and reduces hop quality and economic value. Damson-hop aphid is currently controlled with insecticides, but the number of approved pesticides is steadily decreasing. In addition, the use ...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-018-0980-y
更新日期:2018-08-01 00:00:00
abstract::The field responses of English populations of the Dutch elm disease vectors,Scolytus multistriatus andS. scolytus to baits containing 4-methyl-3-heptanol, a host synergist [(-)-α-cubebene or (-)-limonene] and (±)-α-, (+)-β-, (-)-β-, (±)-γ-, or (±)-δ-multistriatin were examined. (±)-α-Multistriatin, released at 5-10 μg...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF00987771
更新日期:1983-01-01 00:00:00
abstract::Diastereomers of the spiroacetal, 2,8-dimethyl-1,7-dioxaspiro [5.5]undecane, represent main components of the cephalic secretion from males of the solitary bee,Andrena wilkella. The major compound proved to be of high enantiomeric purity, showing (2S,6R,8S) configuration. Only the naturally occurring enantiomer attrac...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/BF01021775
更新日期:1990-02-01 00:00:00
abstract::The plant secondary metabolite papyriferic acid (PA) deters browsing by snowshoe hares (Lepus americanus) on the juvenile developmental stage of the Alaska paper birch (Betula neoalaskana). However, the physiological mechanism that reduces browsing remains unknown. We used pharmacological assays and molecular modeling...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-011-0039-9
更新日期:2011-12-01 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
pub_type: 杂志文章
doi:10.1007/s10886-017-0884-2
更新日期:2017-09-01 00:00:00
abstract::Compounds from the metasternal and Brindley's glands of the blood-sucking bug, Triatoma infestans, were identified by solid phase microextraction (SPME) and gas chromatography-mass spectrometry. Volatile compounds released by adult bugs during copulation or after mechanical disturbance were also characterized. Six com...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-006-9127-7
更新日期:2006-09-01 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
abstract::Extracts of Paranemastoma quadripunctatum (Opiliones, Dyspnoi, Nemastomatidae) contained seven components, all of which likely originated from the secretion of well-developed prosomal scent glands. The two main components (together accounting for more than 90% of the secretion) were identified as 1,4-naphthoquinone an...
journal_title:Journal of chemical ecology
pub_type: 杂志文章
doi:10.1007/s10886-010-9745-y
更新日期:2010-02-01 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
pub_type: 杂志文章
doi:10.1007/s10886-012-0142-6
更新日期:2012-07-01 00:00:00