A chromatography-free synthesis of (2S,12Z)-2-acetoxy-12-heptadecene — The major sex pheromone component of the pistachio twig borer moth (Kermania pistaciella)

2009 ◽  
Vol 87 (2) ◽  
pp. 430-432 ◽  
Author(s):  
Robert Britton ◽  
Grigori Khaskin ◽  
Gerhard Gries
Keyword(s):  
Sex Pheromone ◽  
Insect Pests ◽  
Cost Effective ◽  
Field Studies ◽  
Pheromone Component ◽  
Attract And Kill

Recently, (2S,12Z)-2-acetoxy-12-heptadecene was identified as the major sex pheromone component of the pistachio twig borer moth, Kermania pistaciella , one of the most serious insect pests of pistachio plantations in Iran and Turkey. In field studies, an attract-and-kill formulation containing (2S,12Z)-2-acetoxy-12-heptadecene demonstrated efficacy in reducing damage caused by K. pistaciella and may become a widely-used, earth-friendly tactic for control of this insect in commercial pistachio production. To further develop this technology, a cost-effective, chromatography-free synthesis of (2S,12Z)-2-acetoxy-12-heptadecene was required and is described in this communication.

SEX PHEROMONE OF RETINIA METALLICA (BUSCK) (LEPIDOPTERA: TORTRICIDAE): IDENTIFICATION AND FIELD STUDIES

1988 ◽  
Vol 120 (8-9) ◽  
pp. 721-726
Author(s):  
M.E. Dix ◽  
E.W. Underhill
Keyword(s):  
Sex Pheromone ◽  
Field Tests ◽  
Field Studies ◽  
Mass Spectrometric ◽  
Pheromone Component ◽  
Trap Catch ◽  
Upper Third

AbstractThe major sex pheromone component from female moths of Retinia metallica (Busck) was identified as Z7,E9-dodecadienyl acetate (Z7,E9-12:Ac) by a combination of electroantennographic (EAG), gas chromatographic (GC), and mass spectrometric analyses. In field tests, males of R. metallica were strongly attracted to Z7,E9-12:Ac. Addition of Z7,Z9-12:Ac, E7,Z9-12:Ac, Z7,E9-dodecadienol (Z7,E9-12:OH), andZ7-dodecenyl acetate (Z7-12:Ac) to Z7,E9-12:Ac did not significantly alter trap catch. However, the addition of E9-dodecenyl acetate (E9-12:Ac) and Z9-12:Ac reduced trap catch. Trap catch was affected by height of placement; traps placed in the upper third of the tree (6 m) caught significantly more males than traps placed at lower heights.

scholarly journals A Tetraene Aldehyde as the Major Sex Pheromone Component of the Promethea Moth (Callosamia promethea (Drury))

2013 ◽  
Vol 39 (10) ◽  
pp. 1263-1272 ◽  
Author(s):  
Rafael Gago ◽  
Jeremy D. Allison ◽  
J. Steven McElfresh ◽  
Kenneth F. Haynes ◽  
Jessica McKenney ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Pheromone Component ◽  
Callosamia Promethea

Duplex DNA barcoding allows accurate species determination of morphologically similar limpets (Patella spp.) from non-destructive sampling

2016 ◽  
Vol 97 (7) ◽  
pp. 1479-1482 ◽  
Author(s):  
Thomas J. Ashton ◽  
Meriem Kayoueche-Reeve ◽  
Andrew J. Blight ◽  
Jon Moore ◽  
David M. Paterson
Keyword(s):  
Dna Barcoding ◽  
Species Abundance ◽  
Microscopic Analysis ◽  
Cost Effective ◽  
Field Studies ◽  
Similar Species ◽  
Species Determination ◽  
Destructive Sampling ◽  
Species Specific ◽  
Non Destructive

Accurate discrimination of two morphologically similar species of Patella limpets has been facilitated by using qPCR amplification of species-specific mitochondrial genomic regions. Cost-effective and non-destructive sampling is achieved using a mucus swab and simple sample lysis and dilution to create a PCR template. Results show 100% concurrence with dissection and microscopic analysis, and the technique has been employed successfully in field studies. The use of highly sensitive DNA barcoding techniques such as this hold great potential for improving previously challenging field assessments of species abundance.

Identification Of Sex Pheromone Components Of The Painted Apple Moth: A Tussock Moth With A Thermally Labile Pheromone Component

2005 ◽  
Vol 31 (3) ◽  
pp. 621-646 ◽  
Author(s):  
A. M. El-Sayed ◽  
A. R. Gibb ◽  
D. M. Suckling ◽  
B. Bunn ◽  
S. Fielder ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Pheromone Component ◽  
Tussock Moth ◽  
Sex Pheromone Components ◽  
Pheromone Components

scholarly journals Improving the Role and Contribution of Pharmacokinetic Analyses in Antimalarial Drug Clinical Trials

2014 ◽  
Vol 58 (10) ◽  
pp. 5643-5649 ◽  
Author(s):  
Katherine Kay ◽  
Eva Maria Hodel ◽  
Ian M. Hastings
Keyword(s):  
Antimalarial Drug ◽  
Theoretical Data ◽  
Drug Efficacy ◽  
Cost Effective ◽  
Field Studies ◽  
World Health ◽  
Efficacy Trials ◽  
Drug Concentrations ◽  
Health Organization ◽  
Study Designs

ABSTRACTIt is now World Health Organization (WHO) policy that drug concentrations on day 7 be measured as part of routine assessment in antimalarial drug efficacy trials. The rationale is that this single pharmacological measure serves as a simple and practical predictor of treatment outcome for antimalarial drugs with long half-lives. Herein we review theoretical data and field studies and conclude that the day 7 drug concentration (d7c) actually appears to be a poor predictor of therapeutic outcome. This poor predictive capability combined with the fact that many routine antimalarial trials will have few or no failures means that there appears to be little justification for this WHO recommendation. Pharmacological studies have a huge potential to improve antimalarial dosing, and we propose study designs that use more-focused, sophisticated, and cost-effective ways of generating these data than the mass collection of single d7c concentrations.

scholarly journals Exploration of multitrait antagonistic microbes against Fusarium oxysporum f.sp. lycopersici

2019 ◽  
Vol 11 (2) ◽  
pp. 503-510 ◽  
Author(s):  
Prachi Singh ◽  
Jyoti Singh ◽  
Rahul Singh Rajput ◽  
Anukool Vaishnav ◽  
Shatrupa Ray ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Fusarium Wilt ◽  
Cost Effective ◽  
Field Studies ◽  
Dual Culture ◽  
Cost Effective Approach ◽  
Maximum Inhibition ◽  
Plant Growth Promoting Activities ◽  
Plant Growth Promoting ◽  
Dual Culture Assay

Fusarium wilt is one of the major diseases of tomato causing extensive loss of production. Exploration of agriculturally important microbes (AIMs) for management of the tomato wilt is an ecofriendly and cost effective approach. In the present study, a total 30 Trichoderma and 30 bacterial isolates were screened in the laboratory for their biocontrol activity against Fusarium oxysporum f.sp. lycopersici (FOL). Out of all the isolates tested, Trichoderma asperellum BHU P-1 and Ochrobactrum sp. BHU PB-1 were found to show maximum inhibition of FOL in dual culture assay. Both the microbes also exhibited plant growth promoting activities such as phosphate solubilisation, production of siderophore, hydrogen cyanide (HCN), indole acetic acid (IAA) and protease activity. These microbes could be evaluated further in greenhouse and field studies for their potential use in management of Fusarium wilt of tomato.

scholarly journals Application of immobilized mycelium-based pellets for the removal of organochlorine compounds: a review

2021 ◽  
Author(s):  
J. C. V. Pereira ◽  
M. P. Serbent ◽  
E. Skoronski
Keyword(s):  
Wastewater Treatment Plants ◽  
Cost Effective ◽  
Field Studies ◽  
Organochlorine Compounds ◽  
Environmental Persistence ◽  
Factors Affecting ◽  
Materials Used ◽  
Immobilization Techniques ◽  
Enzymatic Machinery

Abstract Organochlorines have diverse structures and applications and are included in the list of persistent organic pollutants (POPs) due to their toxicity and environmental persistence. The reduced capacity of conventional wastewater treatment plants to remove these compounds encourages the development of cost-effective and efficient remediation approaches. Fungal biotechnology can contribute to the development of these technologies through their enzymatic machinery but faces several drawbacks related to the use of dispersed mycelium. In this sense, investigations concerning the degradation of organochlorines using immobilized fungi demonstrated an increase in contaminants removal efficiency compared with degradation by free cells. Despite this interest, the mechanisms of immobilized fungi have not been comprehensively reviewed. In this paper, recent advances of laboratory and field studies in organochlorine compounds removal by fungi were reviewed, focusing on the role of immobilization techniques. Firstly, the mechanisms of organochlorines bioconversion by fungi and the factors affecting enzyme activity are elucidated and discussed in detail. Then, the main targeted compounds, fungi, technics, and materials used for immobilization are discussed, as well as their advantages and limitations. Furthermore, critical points for future studies of the fungi immobilization for organochlorines removal are proposed.

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