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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles Volume : Specialissue, Issue : 13, January,

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com
submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci..Specialissue(13) : 365-379
DOI : https://doi.org/10.20546/ijcmas.2026.sp13.038


Co‑Culturing Pseudomonas sp. and Mucor sp.: Unlocking Bioactive Metabolites through Microbial Interactions

Department of Microbiology, Valliammal College for Women (Permanently affiliated to the University of Madras) Chennai, Tamil Nadu, India
*Corresponding author
Abstract:

Unlocking cryptic secondary metabolic pathways in microorganisms remains a central challenge in natural product discovery. Under standard single-strain laboratory conditions, many biosynthetic gene clusters (BGCs) remain silent or unexpressed. This study investigates the interkingdom co-cultivation of Pseudomonas aeruginosa and Mucor sp. (PM co-culture) as a strategy to stimulate competitive stress and interspecies signaling exchanges. Ethyl acetate extracts of the PM co-culture and its respective monocultures were analyzed for chemical diversity via Gas Chromatography-Mass Spectrometry (GC-MS) and evaluated for antioxidant, anti-inflammatory, antimicrobial, anti-biofilm, and cytotoxic properties. GC-MS profiling revealed a significant metabolic shift, with the PM extract displaying unique peaks—including monoterpene alcohols (α-terpineol), phenyl ester derivatives, and siloxane compounds—that were entirely absent in single-strain controls. The co-culture extract demonstrated superior biological efficacy compared to monocultures, including notable DPPH radical scavenging (77.10%), potent inhibition of heat-induced protein denaturation (85.35%), effective disruption of microbial biofilms (41.60%), and marked cytotoxicity against MCF-7 breast cancer cells (IC50 = 4.80μg/mL). These findings confirm that bacterial-fungal co-cultivation between Pseudomonas sp. and Mucor sp. effectively activates silent metabolic pathways, presenting a powerful strategy for discovering novel bioactive compounds.


Keywords: Pseudomonas sp., Mucor sp., co-culture, secondary metabolites, antimicrobial resistance, GC-MS profiling, Quorum Sensing, anti-biofilm


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How to cite this article:

Krutika S. and Pushparani A. 2026. Co‑Culturing Pseudomonas sp. and Mucor sp.: Unlocking Bioactive Metabolites through Microbial Interactions Int.J.Curr.Microbiol.App.Sci. Specialissue(13): 365-379 doi: https://doi.org/10.20546/ijcmas.2026.sp13.038
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license

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