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Egg dispersion in codling moth : influence of egg extract and of its fatty acid constituents Inra
Thiéry, D.; Gabel, B.; Farkas, P.; Jarry, M..
Codling moth females (Cydia pomonella, Lepidoptera: Tortricidae) (CM) usually lay single eggs and have a tendency to disperse. In a first experiment we observed that single females exposed to 20 apples distribute their eggs regularly among apples, suggesting a dispersive oviposition behavior. In a dual-choice situation, isolated females avoided oviposition on areas of cardboard treated with a methylene dichloride egg extract at the dose of ca. 1.0 egg equivalent/cm². A strong avoidance was obtained in response to a 20-fold dose, which was accompanied by a significant reduction of total oviposition. Seven major compounds found by GC analyses in the methylene dichloride extract of 2 to 3-day-old eggs were saturated or unsaturated C14-C18 straight-chain fatty...
Tipo: Journal Article Palavras-chave: LEPIDOPTERE; CYDIA POMONELLA; OEUF; OVIPOSITION; COMPOSITION CHIMIQUE BEHAVIOR; CYDIA POMONELLA; OVIPOSITION; PHEROMONE; SYNOMONE; INSECT; OFFSPRING DISPERSION; FATTY ACIDS; EGG AGE; LEPIDOPTERA; TORTRICIDAE.
Ano: 1995 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9600002471059162&uri=/notices/prodinra1/2010/11/
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Genetic control of protein, oil and fatty acids content under partial drought stress and late sowing conditions in sunflower (Helianthus annuus) Inra
haddadi, P.; Yazdi-Samadi, B.; Langlade, N.; Naghavi, M.R.; Berger, M.; Kalantari, A.; Calmon, A.; Maury, P.; Vincourt, P.; Sarrafi, A..
The purpose of the present study was to map quantitative trait locus (QTLs) associated with percentage of seed protein, oil and fatty acids content under different conditions in a population of recombinant inbred lines (RILs) of sunflower. Three independent field experiments were conducted with well-, partial-irrigated and late-sowing conditions in randomized complete block design with three replications. High significant variation among genotypes is observed for the studied traits in all conditions. Several specific and non-specific QTLs for the aforementioned traits were detected. Under late-sowing condition, a specific QTL of palmitic acid content on linkage group 6 (PAC-LS.6) is located between ORS1233 and SSL66_1 markers. Common chromosomic regions...
Tipo: Journal Article Palavras-chave: CONTROLE GENETIQUE; AMELIORATION DES PLANTES; ACIDE GRAS; ENVIRONNEMENT; QTL; ACIDE LINOLEIQUE; ACIDE OLEIQUE; GENE; SANTE DES PLANTES; ANALYSE CHROMOSOMIQUE; ;   SUNFLOWER; QUANTITATIVE TRAIT LOCUS; SIMPLE SEQUENCE REPEATS; OIL CONTENT; PROTEIN CONTENT; FATTY ACIDS.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201123377941&uri=/notices/prodinra1/2011/04/
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Oviposition response of Lobesia botrana females to long-chain free fatty acids and esters from its eggs Inra
Gabel, B.; Thiéry, D..
Avoidance of occupied ovisposition sites supposes that females perceive information related to their own progency. Fatty acids identified from egg extracts have been reevaluated using a different extraction method, and we have investigated the dose-dependent oviposition response of European grape vine moths (Lobesia botrana) to myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, methyl palmitate, methyl oleate, and ethyl palmitate; all except ethyl palmitate have been identified from eggs of L. botrana. A methylene dichloride extract of eggs from L. botrana revealed the presence of saturated free fatty acids (myristic, palmitic, and stearic) and unsaturated acids (palmitoleic, oleic, linoleic, and linolenic) in amounts...
Tipo: Journal Article Palavras-chave: LOBESIA; LEPIDOPTERE; MARQUEUR CHIMIQUE; OVIPOSITION; OEUF BEHAVIOR; LOBESIA BOTRANA; OVIPOSITION; INSECT; TORTRICID; LEPIDOPTERA; FATTY ACIDS.
Ano: 1996 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9600002472059163&uri=/notices/prodinra1/2010/11/
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Survival and metabolic activity of selected strains of Propionibacterium freudenreichii in the gastrointestinal tract of human microbiota-associated rats Inra
Lan, A.; Bruneau, A.; Philippe, C.; Rochet, V.; Rouault, A.; Hervé, C.; Roland, N.; Rabot, S.; Jan, G..
In addition to their use in cheese technology, dairy propionibacteria have been identified as potential probiotics. However, to have a probiotic effect, propionibacteria have to survive and to remain metabolically active in the digestive tract. The aim of the present study was to investigate the survival and metabolic activity of Propionibacterium freudenreichii within the gastrointestinal tract of human microbiota-associated rats, and its influence on intestinal microbiota composition and metabolism. Twenty-five dairy Propionibacterium strains were screened for their tolerance towards digestive stresses and their ability to produce propionate in a medium mimicking the content of the human colon. Three strains were selected and a daily dose of 2 £ 1010...
Tipo: Journal Article Palavras-chave: PROPIONIBACTERIUM; FATTY ACIDS; GASTROINTESTINAL TRACT; METABOLIC ACTIVITY.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008ca232066&uri=/notices/prodinra1/2008/04/
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The effects of genotype and overfeeding on fat level and composition of adipose and muscle tissues in ducks Inra
Chartrin, P.; Bernadet, M.D.; Guy, G.; Mourot, J.; Duclos, M.J.; Baéza, E..
Tipo: Journal Article Palavras-chave: LIPIDS; FATTY ACIDS; MEAT; MUSCLES; OVERFEEDING.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007af042810&uri=/notices/prodinra1/2009/11/
Registros recuperados: 5
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