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      The Use of Endophytes to Obtain Bioactive Compounds and Their Application in Biotransformation Process

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          Abstract

          Endophytes are microorganisms that reside asymptomatically in the tissues of higher plants and are a promising source of novel organic natural metabolites exhibiting a variety of biological activities. The laboratory of Bioaromas (Unicamp, Brazil) develops research in biotransformation processes and functional evaluation of natural products. With the intent to provide subsidies for studies on endophytic microbes related to areas cited before, this paper focuses particularly on the role of endophytes on the production of anticancer, antimicrobial, and antioxidant compounds and includes examples that illustrate their potential for human use. It also describes biotransformation as an auspicious method to obtain novel bioactive compounds from microbes. Biotransformation allows the production of regio- and stereoselective compounds under mild conditions that can be labeled as “natural,” as discussed in this paper.

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          Most cited references180

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          Taxol and taxane production by Taxomyces andreanae, an endophytic fungus of Pacific yew.

          Taxomyces andreanae, a fungal endophyte, was isolated from the phloem (inner bark) of the Pacific yew, Taxus brevifolia. The fungus is hyphomyceteous and, when grown in a semi-synthetic liquid medium, produced taxol and related compounds. Taxol was identified by mass spectrometry, chromatography, and reactivity with monoclonal antibodies specific for taxol. Both [1-14C]acetic acid and L-[U-14C]phenylalanine served as precursors of [14C]taxol in fungal cultures. No taxol was detected in zero-time cultures or in the small agar plugs used to inoculate the culture flasks.
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            Natural products from endophytic microorganisms.

            Endophytic microorganisms are to be found in virtually every plant on earth. These organisms reside in the living tissues of the host plant and do so in a variety of relationships ranging from symbiotic to pathogenic. Endophytes may contribute to their host plant by producing a plethora of substances that provide protection and ultimately survival value to the plant. Ultimately, these compounds, once isolated and characterized, may also have potential for use in modern medicine, agriculture, and industry. Novel antibiotics, antimycotics, immunosuppressants, and anticancer compounds are only a few examples of what has been found after the isolation and culturing of individual endophytes followed by purification and characterization of some of their natural products. The prospects of finding new drugs that may be effective candidates for treating newly developing diseases in humans, plants, and animals are great. Other applications in industry and agriculture may also be discovered among the novel products produced by endophytic microbes.
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              Free radicals, antioxidants, and human disease: curiosity, cause, or consequence?

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                Author and article information

                Journal
                Biotechnol Res Int
                BTRI
                Biotechnology Research International
                SAGE-Hindawi Access to Research
                2090-3146
                2011
                26 September 2010
                : 2011
                : 576286
                Affiliations
                1Laboratory of Bioflavors,Department of Food Science, School of Food Engineering, University of Campinas, P.O. Box 6121, 13083-862 Campinas, SP, Brazil
                2Laboratory of Nutrition and Metabolism, Department of Food and Nutrition, School of Food Engineering, University of Campinas, P.O. Box 6121, 13083-862 Campinas, SP, Brazil
                Author notes
                *Mário Roberto Maróstica Junior: mario@ 123456fea.unicamp.br

                Academic Editor: Mohamed A. Al Rubeai

                Article
                10.4061/2011/576286
                3042614
                21350663
                cd188cfd-3e41-41ad-88fc-25c343f0570e
                Copyright © 2011 Mariana Recco Pimentel et al.

                This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 11 June 2010
                : 9 August 2010
                Categories
                Review Article

                Biotechnology
                Biotechnology

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