Research Overview & Future Directions

Modern microbiology has moved beyond the study of isolated microbes to the exploration of complex, "social" microbial ecosystems. In recent years, the shift toward sustainable agriculture and precision medicine has necessitated a deeper understanding of how microbial communities interact with their hosts and each other.

Current research demands a transition from traditional culture-based methods to integrated "Omics" approaches (metagenomics, metabolomics) and synthetic biology. Our laboratory focuses on bridging these gaps, translating fundamental molecular insights into bio-innovations that address global food security and antimicrobial resistance.

Research Themes

1. Deciphering the "Microbial Social Network": Multi-Species Biofilms

This theme investigates the structural and functional dynamics of microbial communities. Instead of looking at bacteria in isolation, we explore how they cooperate or compete within a self-produced matrix to survive environmental stressors.

Research Focus: Architecture of multi-species biofilms, signaling molecules (Quorum Sensing), and the role of the extracellular matrix in environmental persistence.

Research Impact: By understanding biofilm architecture, we can develop new strategies for industrial bio-fouling prevention and enhance the durability of beneficial microbial coatings.

2. Chemical Language of the Rhizosphere: A Metabolomics Approach

Using advanced mass spectrometry and metabolic profiling, we "listen in" on the chemical conversations between plants and microbes. This theme seeks to identify specific metabolites—such as flavonoids and organic acids- that trigger growth or defense mechanisms.

Research Focus: High-throughput metabolic profiling of root exudates, identifying bioactive secondary metabolites, and understanding metabolic flux during plant-microbe interactions.

Research Impact: This work decodes the molecular fingerprints of life, allowing us to manipulate plant-microbe signaling to boost crop immunity without chemical intervention.

3. Combating Resistance: Next-Gen Antimicrobials & Synergy

As traditional antibiotics fail, this theme explores unconventional strategies to inhibit pathogens. We investigate microbial-derived compounds and "anti-virulence" strategies that prevent disease without necessarily killing the bacteria, thereby reducing the pressure to evolve resistance.

Research Focus: Isolation of novel antimicrobial compounds from niche environments, investigating synergistic combinations, and overcoming Biofilm-Associated Resistance (BAR).

Research Impact: Our research addresses the global AMR crisis by discovering "resistance-proof" inhibitors that target pathogen behavior rather than just cell survival.

4. Precision Bio-Control: Engineering Synthetic Microbial Consortia

Moving away from chemical pesticides, this theme focuses on designing "Personalized Plant Microbiomes." We study how specific microbial consortia can be engineered to suppress soil-borne pathogens and enhance nutrient use efficiency (NUE) under abiotic stress.

Research Focus: Developing tailored microbial inoculants (PGPR), studying competitive exclusion, and field-to-lab scaling of bio-control agents.

Research Impact: We are engineering the future of food security by developing 'smart' bio-fertilizers that restore soil health while providing targeted protection against pathogens.

    Major contribution

• Developed a method for preparing a fungus based formulation for enhancement of Tea leaf flavonoids (Indian Patent filed, Application No. 202431070487, dated 18th September, 2024)

•  Developed bacteria-algae consortia-based protocooperation system for heavy metal remediation from aquaculture (Chandrashekharaiah et al., 2022, Resources, Conservation & Recycling)

•  Characterized rice root endophytic Azotobacter sp. (MCC 3432) and optimized its rice growth-promoting capabilities under laboratory, net house, and field conditions (Banik et al., 2016,Planta; Banik et al., 2019, Microbiological Research)

•  Characterized a tea pest-specific Bacillus thuringiensis and identified a novel toxin (immune inhibitor A of Bt) by MALDI-TOF mass spectrometry. The strain has been optimized for large-scale production in a 250L fermenter and is currently being used by Goodricke Group Ltd. (Banik et al., 2019, Industrial Crops & Products)

•  Developed a microbial bioremediation system for groundnut and identified the active principle by Gas chromatography-mass spectrometry (GC-MS) and FTIR (Banik et al., 2018, Science of the Total Environment)

•  Developed a novel Fluorescence Resonance Energy Transfer (FRET)-based technique for tracking endophytic bacterial rice root colonization (Banik et al., 2016, Biology and Fertility of Soils)