Beta
5255

Antibiofilm activity of Streptomyces toxytricini Fz94 against Candida albicans ATCC 10231

Article

Last updated: 03 Jan 2025

Subjects

-

Tags

-

Abstract

Candida albicans is a significant cause of morbidity and mortality in immunocompromised patients worldwide. Biofilm formation by Candida species is a significant virulence factor for disease pathogenesis. Keeping in view the importance of Streptomyces' metabolites, the present study was initiated during the bioprospecting programme of Egyptian Streptomyces carried by the authors since 2013. Native Streptomyces isolates were recovered from soil samples collected from different governorates. Antifungal activity of forty isolates of Streptomyces were performed against planktonic (free cells) of C. albicans ATCC 10231 and resistant clinical Candida isolates. Streptomyces isolates showed high inhibition activity against free cells of Candida were further assayed against biofilm of C. albicans reference strain. The most active Streptomyces sp. (no.6) was identified phenotypically, biochemically and by using 16S rRNA. The 16S rRNA sequences obtained were compared with those deposited in the GenBank Database and registered with accession number KM052378 as S. toxytricini Fz94. Screening of S. toxytricini Fz94 extract capability in prevention and destruction of C. albicans reference strain biolfilm was assessed by resazurin dye adopted technique. In the pre-exposure scheme, the lowest concentration of 5 gL-1 showed biofilm viability inhibition of 92% after 120 min, while Ketoconazole® gave 90 % inhibition at concentration of 2 gL-1. In post exposure, the concentration of S. toxytricini Fz94 extract 7gL-1 caused 82 % inhibition of biofilms viability after 120 min, while Ketoconazole did not show any destruction capability. The cytotoxicity of S. toxytricini Fz94 crude extract results showed that it was nontoxic at 10 gL-1. S. toxytricini Fz94 is maintained in the Fungarium of Arab Society for Fungal Conservation (ASFC) with accession number FSCU-2017-1110.

DOI

10.21608/mb.2017.5255

Keywords

Bioprospecting, Egypt, Ketoconazole, Streptomyces toxytricini Fz94, resazurin

Authors

First Name

Sheir

Last Name

DH

MiddleName

-

Affiliation

Chemistry of Natural and Microbial Products Department, Pharmaceutical Industries Division, National Research Centre, Cairo,

Email

donia_sheir@yahoo.com

City

-

Orcid

0000-0002-9241-8484

First Name

Hafez

Last Name

MA

MiddleName

-

Affiliation

Department of Botany and Microbiology, Faculty of Science, Al Azhar University, Cairo, 11651, Egypt

Email

-

City

-

Orcid

-

Volume

2

Article Issue

1

Related Issue

887

Issue Date

2017-06-01

Receive Date

2017-06-02

Publish Date

2017-06-01

Page Start

26

Page End

39

Print ISSN

2357-0326

Online ISSN

2357-0334

Link

https://mb.journals.ekb.eg/article_5255.html

Detail API

https://mb.journals.ekb.eg/service?article_code=5255

Order

4

Type

Original Article

Type Code

502

Publication Type

Journal

Publication Title

Microbial Biosystems

Publication Link

https://mb.journals.ekb.eg/

MainTitle

Antibiofilm activity of Streptomyces toxytricini Fz94 against Candida albicans ATCC 10231

Details

Type

Article

Created At

22 Jan 2023