Ethnomicrobiology in Siddha Medicine Bridging Indigenous Knowledge and Modern Science
Keywords:
Ethnomicrobiology, Siddha medicine, Oru Thavaram, antimicrobial plants, medicinal herbs, phytochemicals, drug discovery, traditional knowledge, antimicrobial resistance, natural productsAbstract
Background: Ethnomicrobiology is an emerging interdisciplinary field that integrates indigenous medical knowledge with modern microbiological science to identify potential antimicrobial agents from traditional medicinal systems. Siddha medicine, one of the oldest systems of South India, extensively utilizes single herbal formulations (Oru Thavaram) and rare ethnobotanical plants for the management of infectious diseases. In the era of rising antimicrobial resistance, such traditional knowledge systems are gaining renewed scientific importance.
Objective: To explore the ethnomicrobiological relevance of Siddha medicine by evaluating selected single herbal medicinal plants and rare ethnobotanical species for their antimicrobial potential and their role in bridging indigenous knowledge with modern science.
Materials and Methods: A narrative evidence-based review was conducted using scientific databases including PubMed, Scopus, Web of Science, ScienceDirect, Google Scholar, MEDLINE, SpringerLink, and AYUSH Research Portal. Classical Siddha literature and ethnobotanical sources were also reviewed. Studies published between 2000 and 2025 reporting antimicrobial, antiviral, antifungal, or immunomodulatory activities of selected Siddha medicinal plants were included. Data on phytochemical composition, antimicrobial spectrum, and mechanisms of action were systematically extracted and synthesized.
Results: The review identified significant antimicrobial potential among commonly used Siddha single herbal plants such as Azadirachta indica, Ocimum tenuiflorum, Aloe vera, Phyllanthus emblica, and Tinospora cordifolia. Additionally, rare ethnobotanical plants including Salacia reticulata, Gymnema sylvestre, Aegle marmelos, Syzygium cumini, and Rauvolfia serpentina demonstrated promising antimicrobial and immunomodulatory activities. These plants contain diverse phytochemicals such as flavonoids, alkaloids, tannins, terpenoids, and glycosides that act through multiple mechanisms including membrane disruption, inhibition of microbial enzymes, suppression of virulence factors, and prevention of biofilm formation. The findings highlight strong concordance between traditional Siddha ethnomicrobiological knowledge and recent scientific evidence supporting multi-target antimicrobial action.
Conclusion: Siddha ethnomicrobiology provides a valuable bridge between indigenous knowledge and modern antimicrobial drug discovery. Both commonly used and rare medicinal plants exhibit significant antimicrobial potential; however, further standardization, mechanistic studies, and clinical validation are essential for translational application.
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