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Antibacterial Activity of Rhodomyrtus tomentosa (Aiton) Hassk. Leaf Extract against Clinical Isolates of Streptococcus pyogenes

Ethanol extract of Rhodomyrtus tomentosa (Aiton) Hassk. leaf was evaluated for antibacterial activity against 47 clinical isolates of Streptococcus pyogenes. The extract exhibited good anti-S. pyogenes activity against all the tested isolates with similar minimum inhibitory concentration (MIC, 3.91–...

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Autores principales: Limsuwan, Surasak, Kayser, Oliver, Voravuthikunchai, Supayang Piyawan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3438885/
https://www.ncbi.nlm.nih.gov/pubmed/22973404
http://dx.doi.org/10.1155/2012/697183
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author Limsuwan, Surasak
Kayser, Oliver
Voravuthikunchai, Supayang Piyawan
author_facet Limsuwan, Surasak
Kayser, Oliver
Voravuthikunchai, Supayang Piyawan
author_sort Limsuwan, Surasak
collection PubMed
description Ethanol extract of Rhodomyrtus tomentosa (Aiton) Hassk. leaf was evaluated for antibacterial activity against 47 clinical isolates of Streptococcus pyogenes. The extract exhibited good anti-S. pyogenes activity against all the tested isolates with similar minimum inhibitory concentration (MIC, 3.91–62.5 μg mL(−1)) and minimum bactericidal concentration (MBC, 3.91–62.5 μg mL(−1)) ranges. No surviving cells were detected at 16 h after treatment with 8 × MIC of the extract. The extract-treated cells demonstrated no lysis and cytoplasmic leakage through the bacterial membrane. Electron micrographs further revealed that the extract did not cause any dramatic changes on the treated cells. Rhodomyrtone, an isolated compound, exhibited good anti-S. pyogenes activity (14 isolates), expressed very low MIC (0.39–1.56 μg mL(−1)) and MBC (0.39-1.56 μg mL(−1)) values. Rhodomyrtus tomentosa leaf extract and rhodomyrtone displayed promising antibacterial activity against clinical isolates of S. pyogenes.
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spelling pubmed-34388852012-09-12 Antibacterial Activity of Rhodomyrtus tomentosa (Aiton) Hassk. Leaf Extract against Clinical Isolates of Streptococcus pyogenes Limsuwan, Surasak Kayser, Oliver Voravuthikunchai, Supayang Piyawan Evid Based Complement Alternat Med Research Article Ethanol extract of Rhodomyrtus tomentosa (Aiton) Hassk. leaf was evaluated for antibacterial activity against 47 clinical isolates of Streptococcus pyogenes. The extract exhibited good anti-S. pyogenes activity against all the tested isolates with similar minimum inhibitory concentration (MIC, 3.91–62.5 μg mL(−1)) and minimum bactericidal concentration (MBC, 3.91–62.5 μg mL(−1)) ranges. No surviving cells were detected at 16 h after treatment with 8 × MIC of the extract. The extract-treated cells demonstrated no lysis and cytoplasmic leakage through the bacterial membrane. Electron micrographs further revealed that the extract did not cause any dramatic changes on the treated cells. Rhodomyrtone, an isolated compound, exhibited good anti-S. pyogenes activity (14 isolates), expressed very low MIC (0.39–1.56 μg mL(−1)) and MBC (0.39-1.56 μg mL(−1)) values. Rhodomyrtus tomentosa leaf extract and rhodomyrtone displayed promising antibacterial activity against clinical isolates of S. pyogenes. Hindawi Publishing Corporation 2012 2012-09-02 /pmc/articles/PMC3438885/ /pubmed/22973404 http://dx.doi.org/10.1155/2012/697183 Text en Copyright © 2012 Surasak Limsuwan et al. https://creativecommons.org/licenses/by/3.0/ 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.
spellingShingle Research Article
Limsuwan, Surasak
Kayser, Oliver
Voravuthikunchai, Supayang Piyawan
Antibacterial Activity of Rhodomyrtus tomentosa (Aiton) Hassk. Leaf Extract against Clinical Isolates of Streptococcus pyogenes
title Antibacterial Activity of Rhodomyrtus tomentosa (Aiton) Hassk. Leaf Extract against Clinical Isolates of Streptococcus pyogenes
title_full Antibacterial Activity of Rhodomyrtus tomentosa (Aiton) Hassk. Leaf Extract against Clinical Isolates of Streptococcus pyogenes
title_fullStr Antibacterial Activity of Rhodomyrtus tomentosa (Aiton) Hassk. Leaf Extract against Clinical Isolates of Streptococcus pyogenes
title_full_unstemmed Antibacterial Activity of Rhodomyrtus tomentosa (Aiton) Hassk. Leaf Extract against Clinical Isolates of Streptococcus pyogenes
title_short Antibacterial Activity of Rhodomyrtus tomentosa (Aiton) Hassk. Leaf Extract against Clinical Isolates of Streptococcus pyogenes
title_sort antibacterial activity of rhodomyrtus tomentosa (aiton) hassk. leaf extract against clinical isolates of streptococcus pyogenes
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3438885/
https://www.ncbi.nlm.nih.gov/pubmed/22973404
http://dx.doi.org/10.1155/2012/697183
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