Antifungal activity of extracts from Brazilian Cerrado plants on Colletotrichum gloeosporioides and Corynespora cassiicola

Revista Brasileira de Plantas Medicinais

E.s. Naruzawa²  M.f.s. Papa¹ 

[1] ,Université Laval Faculté de Foresterie et Géomatique Département des Sciences du Bois et de la ForêtQuébec,Canada

关键词: aqueous extract;    hydroethanolic extract;    spore germination;    mycelial growth;    alternative control;    extrato aquoso;    extrato hidroetanólico;    germinação de esporos;    crescimento micelial;    controle alternativo;   

DOI  :  10.1590/S1516-05722011000400006

来源: SciELO

【 摘 要 】

This study aimed to determine the antifungal activity of leaf aqueous and hydroethanolic extracts of 10 plants from the Brazilian Cerrado on Colletotrichum gloeosporioides and Corynespora cassiicola. Antifungal activity was measured through the incorporation of each extract in a culture media or spore suspension, at 50% concentration relative to the volume, determining respectively the mycelial growth and the spore germination. Then, the percentages of mycelial growth inhibition and spore germination inhibition were obtained based on the comparison with the control. The extracts had a variable action on the phytopathogens, from mycelial growth stimulation for Aristolochia esperanzae and Byrsonima verbascifolia extracts to complete inhibition of mycelial growth and spore germination for Myracrodruon urundeuva and Lafoensia pacari extracts. M. urundeuva, L. pacari and Caryocar brasiliense leaf extracts had antifungal activity against Colletotrichum gloeosporioides and Corynespora cassiicola; the hydroethanolic extracts presented more antifungal activity than the aqueous extracts, and spore germination of both phytopathogens was more affected than their mycelial growth.

【 授权许可】

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