Epiphytic microorganisms of vassourinha - Baccharis dracunculifolia D. C. (Asteraceae)

Abstract

The species Baccharis dracunculifolia DC (Asteraceae) has a biological and ecological importance for the removal of epiphytic microorganisms, taking into account their adaptability to different biomes of the Americas in particular South America. Epiphytic living microorganisms on the vegetables surface, is widely distributed in nature according to the humid climate. Currently the enzymes has been increasing its importance in scientific research, biological catalysts are widely used in industry, production of detergents and textile industry and pharmaceuticals, among others. This study aimed to isolate, identify and qualitatively evaluate the lipolytic activities, amylase and protease in three species of epiphytic fungi isolated from B. dracunculifolia. It was obtained three groups of fungi, which were later identified as the fungi Colletotrichum sp., Fusarium sp. and Penicillium sp. In relation to the capacity of these fungi to produce extra cellular enzymes, it was found that the three groups identified fungi are producers of lipases, amylases and proteases, but protease production is less than those of other enzymes, it showed Enzyme Index (IE) equal to 1, equivalent to a negative enzymatic activity (Pz) with respect to lipolytic and amylolytic activity of these fungi showed a positive enzymatic activity (Pz).