Search results for "Brun"
showing 10 items of 118 documents
Alterazioni del legno della vite: prime osservazioni in areali della Sicilia occidentale.
2008
Il comportamento epidemico di “malattie del legno” di Vitis vinifera è stato studiato in tre aree viticole della Sicilia occidentale. In particolare, sono stati condotti rilievi in campo per quantificare l’incidenza e l’intensità di sintomi del mal dell’esca e di un deperimento “atipico”; in laboratorio, invece, sono stati effettuati isolamenti per individuare i microrganismi associati ai campioni di xilema alterato. I risultati delle osservazioni, confermano la “fluttuazione” dei sintomi, la differente evoluzione dell’esca in funzione della cultivar e del clima, definendo, inoltre, la natura biotica del deperimento atipico rilevato a Marsala (TP) e quella abiotica delle alterazioni xilemat…
Zur Frage der Wasserversorgung Rigas nebst einem neuen Vorschlag zur Lösung darselben: unter Anlehnung an den am 23. Februar c. im Technischen Verein…
1893
Zvaigžņotā Debess: 2007, Rudens
2007
Latvijas Zinātnes padome, Latvijas Universitāte
Age, pathogen exposure, but not maternal care shape offspring immunity in an insect with facultative family life
2017
International audience; Background: To optimize their resistance against pathogen infection, individuals are expected to find the right balance between investing into the immune system and other life history traits. In vertebrates, several factors were shown to critically affect the direction of this balance, such as the developmental stage of an individual, its current risk of infection and/or its access to external help such as parental care. However, the independent and/or interactive effects of these factors on immunity remain poorly studied in insects.Results: Here, we manipulated maternal presence and pathogen exposure in families of the European earwig Forficula auricularia to measur…
Gilbert Durand et Jean Brun, de Bachelard à l’aventure spirituelle d’Eranos
2015
International audience
Conséquences écologiques et évolutives du flux de gènes entre Brassica napus transgénique et ses apparentés sauvages
2010
In the framework of commercial release for transgenic crops with novel traits, consequences of gene flow and introgression are still one main concern. I explored the ecological and evolutionary consequences of gene flow between oilseed rape (Brassica napus) and its wild relatives, brown mustard (B. juncea) and wild radish (Raphanus raphanistrum), through several experiments carried out in greenhouse, common garden and field in Beijing and Dijon. First, I revised a comprehensive review of the literature about gene flow and its effect on plant fitness in the Brassiceae. Second, I investigated the effects on gene flow of seed size of hybrids between Bt-transgenic oilseed rape and mustard. Smal…
Origine et rôle du cuivre et du fer dans la fabrication de la moutarde de Dijon
1977
National audience
Composition chimique de la Brassica juncea utilisée dans la fabrication de la moutarde de Dijon
1980
National audience
Composition de la fraction glucidique de la Brassica juncea et de la moutarde de Dijon
1980
National audience
La dégradation des thioglucosides par les sels de cuivre. (Application au dosage de la sinigrine dans les graines de moutarde)
1977
National audience