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2022-01-01
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- IOC - Artigos de Periódicos [12828]
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A SAPONIN TOLERANT AND GLYCOSIDE PRODUCER XYLARIACEOUS FUNGUS ISOLATED FROM FRUITS OF SAPINDUS SAPONARIA
Author
Affilliation
Universidade Federal de São Carlos. Departamento de Química. São Carlos, SP, Brasil.
Universidade Federal de São Carlos. Departamento de Química. São Carlos, SP, Brasil.
Universidade Federal de São Carlos. Departamento de Química. São Carlos, SP, Brasil.
Universidade Federal de São Carlos. Departamento de Genética e Evolução. São Carlos, SP, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Coleção de Culturas de Fungos. Rio de Janeiro, RJ. Brasil.
Universidade Federal de São Carlos. Departamento de Química. São Carlos, SP, Brasil.
Universidade Federal de São Carlos. Departamento de Química. São Carlos, SP, Brasil.
Universidade Federal de São Carlos. Departamento de Genética e Evolução. São Carlos, SP, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Coleção de Culturas de Fungos. Rio de Janeiro, RJ. Brasil.
Abstract
The plant Sapindus saponaria is a good producer
of terpenoidal and sesquiterpenoidal saponins, which
are accumulated in its fruits. Although saponins usually act
as antifungal compounds, a fungus was found living on the
internal part of its pericarp. Tentative identification of the
fungus, based on micro and macro-morphological aspects
inspection, as well as on the secondary metabolite production,
suggested the fungus to be a Xylariaceous
microorganism. When the fungus is placed in contact with
glycosides extracted from the host plant, or exogenous
glycosides and other terpenoid compounds, it showed
ability to transform them in another compounds. Analysis
of these products using liquid chromatography and mass
spectrometry showed that these biotransformations are
mainly monohydroxylation and glycosilation. These findings
contrasts most of the reports found in the literature
which shows that hydrolysis at sugar chain are frequently
observed during glycoside biotransformation by fungi.
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