Macroalgal Endophytes from the Atlantic Coast of Canada: A Potential Source of Antibiotic Natural Products?

As the need for new and more effective antibiotics increases, untapped sources of biodiversity are being explored in an effort to provide lead structures for drug discovery. Endophytic fungi from marine macroalgae have been identified as a potential source of biologically active natural products, al...

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Main Authors: Andrew J. Flewelling, Katelyn T. Ellsworth, Joseph Sanford, Erica Forward, John A. Johnson, Christopher A. Gray
Format: Article
Language:English
Published: MDPI AG 2013-12-01
Series:Microorganisms
Subjects:
Online Access:http://www.mdpi.com/2076-2607/1/1/175
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author Andrew J. Flewelling
Katelyn T. Ellsworth
Joseph Sanford
Erica Forward
John A. Johnson
Christopher A. Gray
author_facet Andrew J. Flewelling
Katelyn T. Ellsworth
Joseph Sanford
Erica Forward
John A. Johnson
Christopher A. Gray
author_sort Andrew J. Flewelling
collection DOAJ
description As the need for new and more effective antibiotics increases, untapped sources of biodiversity are being explored in an effort to provide lead structures for drug discovery. Endophytic fungi from marine macroalgae have been identified as a potential source of biologically active natural products, although data to support this is limited. To assess the antibiotic potential of temperate macroalgal endophytes we isolated endophytic fungi from algae collected in the Bay of Fundy, Canada and screened fungal extracts for the presence of antimicrobial compounds. A total of 79 endophytes were isolated from 7 species of red, 4 species of brown, and 3 species of green algae. Twenty of the endophytes were identified to the genus or species level, with the remaining isolates designated codes according to their morphology. Bioactivity screening assays performed on extracts of the fermentation broths and mycelia of the isolates revealed that 43 endophytes exhibited antibacterial activity, with 32 displaying antifungal activity. Endophytic fungi from Bay of Fundy macroalgae therefore represent a significant source of antibiotic natural products and warrant further detailed investigation.
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spelling doaj.art-5ad07eafb3014a83ac09bcc3b11449392022-12-22T02:30:26ZengMDPI AGMicroorganisms2076-26072013-12-011117518710.3390/microorganisms1010175microorganisms1010175Macroalgal Endophytes from the Atlantic Coast of Canada: A Potential Source of Antibiotic Natural Products?Andrew J. Flewelling0Katelyn T. Ellsworth1Joseph Sanford2Erica Forward3John A. Johnson4Christopher A. Gray5Department of Biology, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, CanadaDepartment of Biology, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, CanadaDepartment of Biology, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, CanadaDepartment of Biology, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, CanadaDepartment of Biology, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, CanadaDepartment of Biology, University of New Brunswick, 100 Tucker Park Road, Saint John, NB E2L 4L5, CanadaAs the need for new and more effective antibiotics increases, untapped sources of biodiversity are being explored in an effort to provide lead structures for drug discovery. Endophytic fungi from marine macroalgae have been identified as a potential source of biologically active natural products, although data to support this is limited. To assess the antibiotic potential of temperate macroalgal endophytes we isolated endophytic fungi from algae collected in the Bay of Fundy, Canada and screened fungal extracts for the presence of antimicrobial compounds. A total of 79 endophytes were isolated from 7 species of red, 4 species of brown, and 3 species of green algae. Twenty of the endophytes were identified to the genus or species level, with the remaining isolates designated codes according to their morphology. Bioactivity screening assays performed on extracts of the fermentation broths and mycelia of the isolates revealed that 43 endophytes exhibited antibacterial activity, with 32 displaying antifungal activity. Endophytic fungi from Bay of Fundy macroalgae therefore represent a significant source of antibiotic natural products and warrant further detailed investigation.http://www.mdpi.com/2076-2607/1/1/175marine macroalgaeendophyteantibacterialantifungal
spellingShingle Andrew J. Flewelling
Katelyn T. Ellsworth
Joseph Sanford
Erica Forward
John A. Johnson
Christopher A. Gray
Macroalgal Endophytes from the Atlantic Coast of Canada: A Potential Source of Antibiotic Natural Products?
Microorganisms
marine macroalgae
endophyte
antibacterial
antifungal
title Macroalgal Endophytes from the Atlantic Coast of Canada: A Potential Source of Antibiotic Natural Products?
title_full Macroalgal Endophytes from the Atlantic Coast of Canada: A Potential Source of Antibiotic Natural Products?
title_fullStr Macroalgal Endophytes from the Atlantic Coast of Canada: A Potential Source of Antibiotic Natural Products?
title_full_unstemmed Macroalgal Endophytes from the Atlantic Coast of Canada: A Potential Source of Antibiotic Natural Products?
title_short Macroalgal Endophytes from the Atlantic Coast of Canada: A Potential Source of Antibiotic Natural Products?
title_sort macroalgal endophytes from the atlantic coast of canada a potential source of antibiotic natural products
topic marine macroalgae
endophyte
antibacterial
antifungal
url http://www.mdpi.com/2076-2607/1/1/175
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