In Vitro Phytotoxicity and Antioxidant Activity of Selected Flavonoids
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Data
2012-05-01
Autores
De Martino, Laura
Mencherini, Teresa
Mancini, Emilia
Aquino, Rita Patrizia
Rolim de Almeida, Luiz Fernando [UNESP]
De Feo, Vincenzo
Título da Revista
ISSN da Revista
Título de Volume
Editor
Mdpi Ag
Resumo
The knowledge of flavonoids involved in plant-plant interactions and their mechanisms of action are poor and, moreover, the structural characteristics required for these biological activities are scarcely known. The objective of this work was to study the possible in vitro phytotoxic effects of 27 flavonoids on the germination and early radical growth of Raphanus sativus L. and Lepidium sativum L., with the aim to evaluate the possible structure/activity relationship. Moreover, the antioxidant activity of the same compounds was also evaluated. Generally, in response to various tested flavonoids, germination was only slightly affected, whereas significant differences were observed in the activity of the various tested flavonoids against radical elongation. DPPH test confirms the antioxidant activity of luteolin, quercetin, catechol, morin, and catechin. The biological activity recorded is discussed in relation to the structure of compounds and their capability to interact with cell structures and physiology. No correlation was found between phytotoxic and antioxidant activities.
Descrição
Palavras-chave
flavonoids, germination, radical elongation, antioxidant activity, structure/activity
Como citar
International Journal of Molecular Sciences. Basel: Mdpi Ag, v. 13, n. 5, p. 5406-5419, 2012.