16 research outputs found

    Alterations in the mitotic index of Allium cepa induced by infusions of Pluchea sagittalis submitted to three different cultivation systems

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    We evaluated the antiproliferative effect of infusions from Pluchea sagittalis using the Allium cepa test. Infusions in three concentrations (2.5, 5, and 25 g dm-3) of leaves cultivated in three environments (in vitro, acclimatized growth chamber, and field) were used. Six onion bulbs were used for each of the eight treatments, and the mitotic index was obtained from 6000 cells per treatment. In conclusion, leaf infusions of P. sagittalis cultivated in the field have a high antiproliferative activity, as well as the cultivation system influences the antiproliferative potential.<br>Avaliou-se o efeito antiproliferativo de infusĂ”es de Pluchea sagittalis usando o teste de Allium cepa. Foram usadas infusĂ”es em trĂȘs concentraçÔes (2,5, 5 e 25g dm-3) de folhas cultivadas em trĂȘs ambientes (in vitro, sala de crescimento climatizada e em campo). Foram usados seis grupos de bulbos para cada um dos 8 tratamentos e o os Ă­ndices mitĂłticos foram obtidos a partir de 6000 cĂ©lulas por tratamento. Concluiu-se que a infusĂŁo de folhas de P. sagittalis cultivadas em campo possui grande atividade antiproliferativa, bem como o sistema de cultivo de plantas influencia o potencial antiproliferativo
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