Abstract
Mycobacterium tuberculosis is a human pathogen that causes Tuberculosis (TB) disease. Researchers have reported the activity of traditional medicinal plants against human pathogens. However, antimycobacterial studies of medicinal plants against M. tuberculosis remain limited. Thus, the purpose of this study is to characterize the phytochemical profile, antibacterial and antimycobacterial activity of Tridax procumbens towards H37Rv. The antibacterial activity was elucidated by the inhibitory zone formed around the disc by performing disk diffusion method. Tridax antimycobacterial activity measured by Microplate Alamar Blue Assay (MABA) infers the sample is sensitive to H37Rv at MIC (minimum inhibitory concentration) 600µg/mL. BACTEC MGIT 960 DST identifies the sample is susceptible to H37Rv and Rifampicin resistant (RR). Antiproliferative, functional group determination and mechanism of action of secondary metabolites were performed by MTT, Fourier transform infrared spectroscopy (FTIR) and Gas Chromatography-mass spectrometry (GC-MS). The phytocompounds antimycobacterial efficacy is further supported by molecular docking data. The binding interactions of ligands with gyrA gene revealed (S,Z)-Heptadeca-1,9-dien-4,6-diyn-3-ol molecule as a prominent phytocompound with a binding affinity of -6.6kcal/mol.
Published Version
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