Diketopiperazines and arylethylamides produced by Schizophyllum commune, an endophytic fungus in Alchornea glandulosa

Chemical investigation of the crude PDB extract obtained from the endophytic fungus Schizophyllum commune afforded the pure substances, cyclo(L-Pro-L-Val) (1), uracil (2), cyclo(Pro-Tyr) (3), p-hydroxybenzoic acid (4) and a mixture of Rel.cyclo(Pro-Phe) (5) and Rel.cyclo(Pro-Ile) (6). When cultured...

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Main Authors: Carolina Rabal Biasetto, Andressa Somensi, Fernanda Sales Figueiro, Luiz Alberto Beraldo de Moraes, Geraldo Humberto Silva, Maria Claudia Marx Young, Vanderlan da Silva Bolzani, Angela Regina Araújo
Format: Article
Language:English
Published: Universidade Estadual Paulista 2019-07-01
Series:Eclética Química
Online Access:https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/977
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author Carolina Rabal Biasetto
Andressa Somensi
Fernanda Sales Figueiro
Luiz Alberto Beraldo de Moraes
Geraldo Humberto Silva
Maria Claudia Marx Young
Vanderlan da Silva Bolzani
Angela Regina Araújo
author_facet Carolina Rabal Biasetto
Andressa Somensi
Fernanda Sales Figueiro
Luiz Alberto Beraldo de Moraes
Geraldo Humberto Silva
Maria Claudia Marx Young
Vanderlan da Silva Bolzani
Angela Regina Araújo
author_sort Carolina Rabal Biasetto
collection DOAJ
description Chemical investigation of the crude PDB extract obtained from the endophytic fungus Schizophyllum commune afforded the pure substances, cyclo(L-Pro-L-Val) (1), uracil (2), cyclo(Pro-Tyr) (3), p-hydroxybenzoic acid (4) and a mixture of Rel.cyclo(Pro-Phe) (5) and Rel.cyclo(Pro-Ile) (6). When cultured in corn, the extract of this fungus yielded N-(2-phenylethyl) acetamide (7) and N-(4-hydroxyphenylethyl) acetamide (8). The structures of all compounds were determined based on the analyses of their MS, 1D and 2D-NMR spectroscopic data. Analysis of the crude extracts obtained from small-scale cultures (in PBD, YM, Nutrient, Czapek, Malt Extract, Corn and Rice) and a large-scale culture (in PDB) by mass spectrometry showed the presence of diketopiperazines 1, 3, 5 and 6. The crude extracts showed promising antioxidant, antifungal and acetylcholinesterase (AChE) inhibitory activities. The metabolites 7 and 8 showed antifungal and AChE inhibitory activities in vitro. This is the first report of the identification and isolation of diketopiperazines, arylethylamides, p-hydroxybenzoic acid in endophytic fungus of the Schizophyllum genus.
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spelling doaj.art-c98fc9aa8eec49b6816ece80e92b3e5c2022-12-21T19:26:22ZengUniversidade Estadual PaulistaEclética Química1678-46182019-07-01443364210.26850/1678-4618eqj.v44.3.2019.p36-42977Diketopiperazines and arylethylamides produced by Schizophyllum commune, an endophytic fungus in Alchornea glandulosaCarolina Rabal Biasetto0Andressa Somensi1Fernanda Sales Figueiro2Luiz Alberto Beraldo de Moraes3Geraldo Humberto Silva4Maria Claudia Marx Young5Vanderlan da Silva Bolzani6Angela Regina Araújo7São Paulo State University (Unesp), Institute of Chemistry, 55 Prof. Francisco Degni Av., Araraquara, São Paulo, BrazilSão Paulo State University (Unesp), Institute of Chemistry, 55 Prof. Francisco Degni Av., Araraquara, São Paulo, BrazilUniversity of São Paulo (USP), Faculty of Philosophy, Sciences and Letters, 3900 Bandeirantes Av., Ribeirão Preto, São Paulo, BrazilUniversity of São Paulo (USP), Faculty of Philosophy, Sciences and Letters, 3900 Bandeirantes Av., Ribeirão Preto, São Paulo, BrazilFederal University of Viçosa (UFV), Institute of Science Exact and Technological, Peter Henry Rolfs Av., Viçosa, Minas Gerais, BrazilSão Paulo Institute of Botany, Nucleus of Research in Physiology and Biochemistry, 3687 Miguel Stéfano Av., São Paulo, São Paulo, BrazilSão Paulo State University (Unesp), Institute of Chemistry, 55 Prof. Francisco Degni Av., Araraquara, São Paulo, BrazilSão Paulo State University (Unesp), Institute of Chemistry, 55 Prof. Francisco Degni Av., Araraquara, São Paulo, BrazilChemical investigation of the crude PDB extract obtained from the endophytic fungus Schizophyllum commune afforded the pure substances, cyclo(L-Pro-L-Val) (1), uracil (2), cyclo(Pro-Tyr) (3), p-hydroxybenzoic acid (4) and a mixture of Rel.cyclo(Pro-Phe) (5) and Rel.cyclo(Pro-Ile) (6). When cultured in corn, the extract of this fungus yielded N-(2-phenylethyl) acetamide (7) and N-(4-hydroxyphenylethyl) acetamide (8). The structures of all compounds were determined based on the analyses of their MS, 1D and 2D-NMR spectroscopic data. Analysis of the crude extracts obtained from small-scale cultures (in PBD, YM, Nutrient, Czapek, Malt Extract, Corn and Rice) and a large-scale culture (in PDB) by mass spectrometry showed the presence of diketopiperazines 1, 3, 5 and 6. The crude extracts showed promising antioxidant, antifungal and acetylcholinesterase (AChE) inhibitory activities. The metabolites 7 and 8 showed antifungal and AChE inhibitory activities in vitro. This is the first report of the identification and isolation of diketopiperazines, arylethylamides, p-hydroxybenzoic acid in endophytic fungus of the Schizophyllum genus.https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/977
spellingShingle Carolina Rabal Biasetto
Andressa Somensi
Fernanda Sales Figueiro
Luiz Alberto Beraldo de Moraes
Geraldo Humberto Silva
Maria Claudia Marx Young
Vanderlan da Silva Bolzani
Angela Regina Araújo
Diketopiperazines and arylethylamides produced by Schizophyllum commune, an endophytic fungus in Alchornea glandulosa
Eclética Química
title Diketopiperazines and arylethylamides produced by Schizophyllum commune, an endophytic fungus in Alchornea glandulosa
title_full Diketopiperazines and arylethylamides produced by Schizophyllum commune, an endophytic fungus in Alchornea glandulosa
title_fullStr Diketopiperazines and arylethylamides produced by Schizophyllum commune, an endophytic fungus in Alchornea glandulosa
title_full_unstemmed Diketopiperazines and arylethylamides produced by Schizophyllum commune, an endophytic fungus in Alchornea glandulosa
title_short Diketopiperazines and arylethylamides produced by Schizophyllum commune, an endophytic fungus in Alchornea glandulosa
title_sort diketopiperazines and arylethylamides produced by schizophyllum commune an endophytic fungus in alchornea glandulosa
url https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/977
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