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| PEREIRA,R. C.; DONATO,R.; TEIXEIRA,V. L.; CAVALCANTI,D. N.. |
| Recent studies have show that small marine herbivores with limited mobility (mesograzers) often feed on macroalgae chemically defended against fishes or sea-urchins. In order to verify the involved mechanisms of chemotaxis or chemical defense into this process in Brazilian littoral, two species of brown alga Dictyota menstrualis and Dictyota mertensii were studied against the limited mobility herbivores, the amphipod Parhyale hawaiensis and the crab Pachygrapsus transversus. These two species were studied in order to verify the action of their crude extracts in the defense and chemotaxis processes related to limited mobility of these herbivores. Feeding preference assays revealed that P. hawaiensis do not eaten these Dictyota species. P. transversus do not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seaweed; Chemical defense; Chemotaxis; Feeding. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000300005 |
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| Falkowski, Michaël; Jahn-oyac, Arnaud; Odonne, Guillaume; Flora, Claudiane; Estevez, Yannick; Touré, Seindé; Boulogne, Isabelle; Robinson, Jean-charles; Béreau, Didier; Petit, Philippe; Azam, Didier; Coke, Maïra; Issaly, Jean; Gaborit, Pascal; Stien, Didier; Eparvier, Véronique; Dusfour, Isabelle; Houël, Emeline. |
| Natural products have proven to be an immeasurable source of bioactive compounds. The exceptional biodiversity encountered in Amazonia, alongside a rich entomofauna and frequent interactions with various herbivores is the crucible of a promising chemodiversity. This prompted us to search for novel botanical insecticides in French Guiana. As this French overseas department faces severe issues linked to insects, notably the strong incidence of vector-borne infectious diseases, we decided to focus our research on products able to control the mosquito Aedes aegypti. We tested 452 extracts obtained from 85 species originating from 36 botanical families and collected in contrasted environments against an Aedes aegypti laboratory strain susceptible to all... |
| Tipo: Text |
Palavras-chave: Mosquito larvicides; Culicidae; Amazonian chemodiversity; Screening optimization; Quasi-Poisson generalized linear model; Chemical defense. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00514/62544/66894.pdf |
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