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Updated: Sep 21, 2026

Antimicrobial Characterization of Advanced Materials for Bioengineering Applications
Published on: August 4, 2018
Antimicrobial Resistance and the Alternative Resources with Special Emphasis on Plant-Based Antimicrobials-A Review
Harish Chandra1, Parul Bishnoi2, Archana Yadav3
1High Altitude Plant Physiology Research Centre, Hemvati Nandan Bahuguna (H.N.B.) Garhwal University, Srinagar, Garhwal 246174, Uttarakhand, India. hreesh5@gmail.com.
Abstract:
Indiscriminate and irrational use of antibiotics has created an unprecedented challenge for human civilization due to microbe's development of antimicrobial resistance. It is difficult to treat bacterial infection due to bacteria's ability to develop resistance against antimicrobial agents. Antimicrobial agents are categorized according to their mechanism of action, i.e., interference with cell wall synthesis, DNA and RNA synthesis, lysis of the bacterial membrane, inhibition of protein synthesis, inhibition of metabolic pathways, etc. Bacteria may become resistant by antibiotic inactivation, target modification, efflux pump and plasmidic efflux. Currently, the clinically available treatment is not effective against the antibiotic resistance developed by some bacterial species. However, plant-based antimicrobials have immense potential to combat bacterial, fungal, protozoal and viral diseases without any known side effects. Such plant metabolites include quinines, alkaloids, lectins, polypeptides, flavones, flavonoids, flavonols, coumarin, terpenoids, essential oils and tannins. The present review focuses on antibiotic resistance, the resistance mechanism in bacteria against antibiotics and the role of plant-active secondary metabolites against microorganisms, which might be useful as an alternative and effective strategy to break the resistance among microbes.
Insights
Antibiotic resistance is a growing threat, making bacterial infections hard to treat. Plant-derived compounds show promise as natural antimicrobials to overcome this resistance.
Area of Science:
- Microbiology
- Pharmacology
- Ethnobotany
Background:
- The rise of antimicrobial resistance (AMR) due to indiscriminate antibiotic use poses a significant global health challenge.
- Bacteria develop resistance through mechanisms like antibiotic inactivation, target modification, and efflux pumps, rendering current treatments ineffective against some strains.
- Plant-derived secondary metabolites offer a potential alternative for combating resistant microbial infections.
Purpose of the Study:
- To review the mechanisms of antibiotic resistance in bacteria.
- To explore the potential of plant-based antimicrobials as an alternative strategy against resistant microorganisms.
- To highlight the role of plant-active secondary metabolites in combating microbial diseases.
Main Methods:
- Literature review of scientific articles on antibiotic resistance mechanisms.
- Analysis of studies on plant-derived compounds with antimicrobial properties.
- Synthesis of information on the efficacy of plant metabolites against various pathogens.
Main Results:
- Identified key bacterial resistance mechanisms including antibiotic inactivation, target modification, and efflux pumps.
- Cataloged various plant metabolites such as flavonoids, alkaloids, and terpenoids with demonstrated antimicrobial activity.
- Highlighted the potential of these plant compounds to act against bacteria, fungi, protozoa, and viruses.
Conclusions:
- Plant-derived secondary metabolites represent a promising avenue for developing novel antimicrobial strategies.
- These natural compounds may offer a way to overcome existing antibiotic resistance in microorganisms.
- Further research into plant-based antimicrobials could lead to effective treatments with minimal side effects.
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