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| Gatesoupe, Fj. |
| Characteristics of Lactic Acid Bacteria (LAB) isolated from rotifers, Brachionus plicatilis, resembled those of Lactobacillus plantarum or Carnobacterium sp. It was investigated whether the artificial maintenance of a high concentration of LAB in rotifers might increase their dietary value for turbot larvae, particularly when the fish were infected with pathogenic Vibrio sp. One LAB strain was cultivated, then introduced daily into the enrichment medium of rotifers. In this way, LAB were retrieved in large amounts in turbot, and a significant limitation of larval mortality rate was observed when turbot were challenged with pathogenic vibrio at day 9. The inoculum concentration of LAB had a decisive effect on survival rate, and the optimum was between 10(7)... |
| Tipo: Text |
Palavras-chave: LACTIC ACID BACTERIA; VIBRIO; PATHOGEN; ROTIFER; EXPERIMENTAL INFECTION; LARVAL FISH CULTURE; TURBOT; PLEURONECTIFORMES. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00065/17672/15200.pdf |
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| Cantwell, George E.; Knox, David A.; Lehnert, Thor; Michael, A.S.. |
| Candidate insect pathogens were fed at various levels to honey bees (Apis mellifera) either in small cages or in observation hives. The pathogens tested included two polyhedrosis viruses, a granulosis virus, a commercial preparation of Bacillus thuringiensis var. thuringiensis, spores, crystals, and the exotoxin of this variety, plus the crystals of varieties alesti and sotto. No mortality was recorded as a result of treatment with any of these pathogens except with the highest level of the exotoxin of B. thuringiensis. |
| Tipo: Journal Article-postprint |
Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; MORTALITY; BIOLOGICAL INSECTICIDE; BIOLOGICAL CONTROL; PATHOGEN; EXOTOXIN; BACILLUS THURINGIENSIS VAR. THURINGIENSIS; ABEILLE DOMESTIQUE; INSECTE SOCIAL; MORTALITE; INSECTICIDE BIOLOGIQUE; LUTTE BIOLOGIQUE; AGENT PATHOGENE; EXOTOXINE; BACILLUS THURINGIENSIS VAR . THURINGIENSIS. |
| Ano: 1966 |
URL: http://hdl.handle.net/2174/369 |
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| Jactel, H.; Nicoll, B. C.; Branco, M.; Gonzalez-Olabarria, J. R.; Grodzki, W.; Långström, B.; Moreira, F.; Netherer, S.; Orazio, C.; Piou, D.; Santos, H.; Schelhaas, M. J.; Tojic, K.; Vodde, F.. |
| • Cette revue bibliographique s'intéresse aux effets de la sylviculture sur la sensibilité des peuplements forestiers aux principaux agents de dégâts biotiques et abiotiques que sont les mammifères herbivores, les insectes ravageurs, les champignons pathogènes, le feu et les vents forts.• Les pratiques forestières analysées sont la sélection et la préparation des sites de reboisement, la définition de la composition en essences et le choix du matériel génétique, les méthodes de régénération et d'entretien, les modalités d'éclaircie et d'élagage, le mode de récolte finale. L'influence de chacune de ces opérations sur l'occurrence des agents de dégâts biotiques et abiotiques et sur la sensibilité des peuplements est examinée ainsi que les processus... |
| Tipo: Journal Article |
Palavras-chave: PEUPLEMENT FORESTIER; PRATIQUE FORESTIÈRE; ENNEMI NATUREL; DÉGÂT SANITAIRE; PEUPLEMENT; SENSIBILITÉ; HERBIVORES; PATHOGÈNES; VENT; FEU SILVICULTURE; STAND; OCCURRENCE; SUSCEPTIBILITY; PEST; PATHOGEN; WIND; FIRE. |
| Ano: 2009 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009294d2729&uri=/notices/prodinra1/2009/12/ |
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