Revista da Sociedade Brasileira de Medicina Tropical · 2021
Preliminary evaluation of the larvicidal activity of extracts and fractions from Ocotea nutans (Nees) Mez against Aedes aegypti.
СтатьяНазвание и аннотация: Перевод в очереди
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Betim Fernando Cesar Martins, Oliveira Camila Freitas de, Montrucchio Deise Prehs, Miguel Obdulio Gomes, Miguel Marilis Dallarmi, Maurer Juliana Bello Baron, Dias Josiane de Fátima Gaspari
Аннотация
INTRODUCTION: Aedes aegypti is the main vector of dengue and yellow fever. Recently, the use of plant-sourced larvicides has gained momentum.
METHODS: The hydroethanolic extracts and fractions ofOcotea nutansleaves and stems were bioassayed to determine the larvicidal efficacy of these samples.
RESULTS: S-HEX (hexane fraction from the crude stem extract) demonstrated high potential for controlling third-stage larvae, with an LC50 of 14.14 µg.mL-1 (concentration required to inhibit 50% of the treated larvae).
CONCLUSIONS: Extracts from O. nutans were effective against third-stage larvae ofA. aegyptiafter 24 h of exposure.
METHODS: The hydroethanolic extracts and fractions ofOcotea nutansleaves and stems were bioassayed to determine the larvicidal efficacy of these samples.
RESULTS: S-HEX (hexane fraction from the crude stem extract) demonstrated high potential for controlling third-stage larvae, with an LC50 of 14.14 µg.mL-1 (concentration required to inhibit 50% of the treated larvae).
CONCLUSIONS: Extracts from O. nutans were effective against third-stage larvae ofA. aegyptiafter 24 h of exposure.