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| Costa,Maria L.M.; Borges,Miguel; Vilela,Evaldo F.; Marco Jr,Paulo de; Lima,Eraldo R.. |
| The attractiveness of Euschistus heros (F.) (Hemiptera: Pentatomidae) females to the eight stereoisomers of the methyl 2,6,10-trimethyltridecanoate, major component of the sex pheromone produced by the males of this species, was studied in a double choice olfactometer. Bioassays showed that the (2R, 6R, 10S) stereoisomer was necessary for the attractiveness of females, presenting better results in relation to the others. The stereoisomeric mixture was shown to present significative attractiveness to females, however, when compared to the (2R, 6R, 10S) stereoisomer, it showed lower attractiveness. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta methyl 2; 6; 10-trimethyltridecanoate semiochemicals stereoisomeric mixture. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0301-80592000000300004 |
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| Molnár, B.P.; Tröger, A.; Toshova, T.B.; Subchev, M.; Nieukerken, E.J. van; Kosten, J.C.; Muus, T.S.T.; Schreurs, A.; Szőcs, G.; Tóth, M.; Francke, W.. |
| The native leafmining moth Tischeria ekebladella (Lepidoptera: Tischeriidae) feeds on oaks and recently has become a pest of silviculture and urban green areas in central Europe. The behavioral responses of male moths to hexane extracts of whole bodies of calling females or males were tested under laboratory conditions. Only extracts of females elicited responses from males. Analysis of extracts by coupled gas chromatography/electroantennographic detection revealed the presence of two electroantennogramactive peaks. Structure elucidation of these compounds, by gas-chromatography/mass spectrometry and independent synthesis revealed them to be (3Z,6Z,9Z)-tricosa-3,6,9-triene and (3Z, |
| Tipo: Article / Letter to the editor |
Palavras-chave: Sex pheromone (3Z; 6Z; 9Z; 19Z)-tricosa-3; 6; 9; 19-tetraene (3Z; 6Z; 9Z)- tricosa-3; 6; 9-triene Tischeria oak leaf miner GC-EAD field trapping early diverging Lepidoptera insect pest 42.75. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/433360 |
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| Zhang,Aijun; Borges,Miguel; Aldrich,Jeffrey R.; Camp,Mary. |
| Volatiles compounds collected from the male Neotropical brown stink bug, Euschistus heros (F.), a serious Central and South American soybean pest, have been reevaluated. The proportion of three methyl esters is found to be quite different from previous study. A new blend is proposed as the male-produced stimulatory volatiles based on gas chromatographic-electroantennographic detection (GC-EAD) techniques. The three GC-EAD-active components reproducibly found in volatiles collected from males are methyl (2E,4Z)-decadienoate (53%), methyl 2,6,10-trimethyldodecanoate (3%), and methyl 2,6,10-trimethyltridecanoate (44%) respectively. Males of this hemipteran species needed to reach an age of... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Soybean pest stimulatory volatile methyl (2E; 4Z)-decadienoate methyl 2; 6; 10-trimethyldodecanoate methyl 2; 6; 10-trimethyltridecanoate electroantennographic detection. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000400025 |
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| Arruda,Rubens Paes de; Silva,Daniela Franco da; Alonso,Maria Augusta; Andrade,André Furugen Cesar de; Nascimento,Juliana; Gallego,Andres Mejia; Martins,Simone Maria Massami Kitamura; Granato,Thaís Marques. |
| The industry has made available in the market a series of substances (nutraceuticals) which intent would be to optimize the use of nutrients in some metabolic paths, influencing positively reproductive performance in animals. However, the response to the use of nutraceuticals varies according to the animal. As the organism is highly complex and in order to achieve a perfect activity of the hypothalamic-pituitary-gonadal axis, an ideal interaction in molecular basis is needed, where the nutraceuticals can have their direct action. The aim of this study was to review the function and research results using the main nutraceuticals (β carotene, vitamin A, L-carnitine, omegas 3, 6 and 9 and Gamma-oryzanol) on reproductive... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Β-carotene bull gamma-oryzanol L-carnitine nutraceutics omegas 3; 6; 9 stallion. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010001300043 |
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