Volume: 47 Issue: 1
Phytochemical chaos: Impacts of climate change and pollution on medicinal plant chemistry, bioactivity and toxicity
Year: 2025, Page: 1-11, Doi: https://doi.org/10.62029/jmaps.v47i1.khan
Received: March 4, 2025 Accepted: July 15, 2025 Published: July 30, 2025
Environmental stressors, including climate change, pollution, and urbanization, significantly impact the phytochemical composition, medicinal efficacy, and economic viability of plant-derived therapeutics. Rising global temperatures, drought stress, and CO₂ fluctuations influence secondary metabolite synthesis, leading to variability in bioactive compound concentrations. Pollution-driven contamination, including heavy metal bioaccumulation and pesticide residues, poses serious safety concerns for herbal medicines, while habitat destruction and genetic erosion due to urbanization threaten medicinal plant biodiversity. However, emerging technologies like CRISPR, AI-driven phytochemical profiling, and precision agriculture provide promising solutions to mitigate these challenges. Sustainable agricultural practices, stringent pollution control measures, and regulatory frameworks integrating real-time environmental monitoring are crucial to preserving medicinal plant resources. The integration of green extraction technologies, blockchain-based traceability systems, and interdisciplinary collaborations can enhance phytochemical stability, optimize production, and ensure the quality of plant-based therapeutics. A proactive, technology-driven approach is essential to securing the future of herbal medicine and maintaining ecological integrity while addressing global healthcare needs.
Keywords: Bioactive compounds, Blockchain traceability, Climate change, CRISPR, Heavy metal contamination, Herbal medicine standardization, Medicinal plants, Phytochemical composition.
Ahmed, S., Bose, S., & Tiwari, M. (2022). Climate-induced phytochemical modulation in medicinal plants: A review of biosynthetic response mechanisms. Journal of Plant Physiology and Biochemistry, 178, 55–68. https://doi.org/10.1016/j.plaphy.2022.05.004
Bhatia, H., & Goyal, M. (2021). Environmental stress and plant secondary metabolism: A review of climate-related biosynthetic responses. Journal of Environmental Biology, 42(3), 515–522. https://doi.org/10.22438/jeb/42/3/MRN-1620
Choudhary, K., Singh, R., & Yadav, N. (2021). Impact of climate change on secondary metabolite production in medicinal plants. Environmental and Experimental Botany, 186, 104438. https://doi.org/10.1016/j.envexpbot.2021.104438
Desai, A. M., Prasad, M. S., & Joshi, R. (2023). Environmental modulation of bioactivity in herbal medicine: A meta-analysis of pharmacological shifts. Phytotherapy Research, 37(4), 1921–1934. https://doi.org/10.1002/ptr.7722
Gupta, R., & Sharma, V. (2021). Elevated CO₂ and temperature: Consequences on phytochemical accumulation in medicinal plants. Journal of Medicinal Plants Research, 15(6), 302–310. https://doi.org/10.5897/JMPR2021.7160
Khalid, A., Singh, A. K., & Taneja, N. (2021). Multi-omics approaches in plant stress biology: An integrative review. Plant Omics Journal, 14(2), 78–92. https://doi.org/10.21475/poj.14.02.21.p3112
Khalid, A., Singh, A. K., & Taneja, N. (2021). Multi-omics approaches in plant stress biology: An integrative review. Plant Omics Journal, 14(2), 78–92. https://doi.org/10.21475/poj.14.02.21.p3112
Kumar, N., & Bhatnagar, P. (2019). Drought stress and CO₂ enrichment impact on medicinal plant secondary metabolites: A review. Acta Physiologiae Plantarum, 41(7), 96. https://doi.org/10.1007/s11738-019-2903-3
Lin, C., Wu, Y., & Zhang, L. (2020). Heat-induced changes in flavonoid biosynthesis and antioxidant capacity of Camellia sinensis. Industrial Crops and Products, 148, 112304. https://doi.org/10.1016/j.indcrop.2020.112304
Meena, P., Saini, V., & Rana, J. C. (2022). Urbanization and its impact on medicinal plant genetic diversity and phytochemistry. Urban Forestry & Urban Greening, 69, 127498. https://doi.org/10.1016/j.ufug.2022.127498
Nikam, D., Raut, S., & Pawar, S. (2022). Ethnomedicinal plant diversity of fragile ecosystems: A case study of Western Ghats. Journal of Ethnopharmacology, 292, 115112. https://doi.org/10.1016/j.jep.2022.115112
Patwardhan, B., & Mashelkar, R. A. (2020). Traditional medicine-inspired approaches to drug discovery: Can Ayurveda show the way forward? Drug Discovery Today, 25(10), 1995–2000. https://doi.org/10.1016/j.drudis.2020.07.013
Rao, R., Kumar, A., & Deshpande, V. (2024). Rising toxicity risks in herbal medicines: Implications of environmental pollutant accumulation. Toxicology Reports, 11, 1221–1233. https://doi.org/10.1016/j.toxrep.2024.04.003
Sharma, P., Ahlawat, S., & Singh, V. (2020). Climate variability and its impact on medicinal plant productivity and phytochemical constituents. Plant Archives, 20(2), 4767–4773. https://doi.org/10.5281/zenodo.4091051
Singh, N., Bhardwaj, S., & Singh, J. (2023). Heavy metal and microplastic contamination in medicinal plants: Emerging risks and mitigation strategies. Environmental Pollution, 320, 121097. https://doi.org/10.1016/j.envpol.2023.121097
Verma, R., & Khan, M. N. (2023). AI-assisted modeling in phytochemistry: A new frontier for predictive herbal pharmacology. Computational Toxicology, 27, 100314. https://doi.org/10.1016/j.comtox.2023.100314
Zhao, Q., Chen, Y., & Wang, L. (2021). Search strategies and trends in medicinal plant phytochemistry research under environmental stress. Frontiers in Plant Science, 12, 672981. https://doi.org/10.3389/fpls.2021.672981
© CSIR-Central Institute of Medicinal and Aromatic Plants, (CSIR-CIMAP), Lucknow, India.
Khan, M. N., Bhandari, M., Vyas, S., Upadhayay, S., & Dubey, P. C. (2025). Phytochemical chaos: Impacts of climate change and pollution on medicinal plant chemistry, bioactivity and toxicity. Journal of Medicinal and Aromatic Plant Sciences, 47(1), 1-11. https://doi.org/10.62029/jmaps.v47i1.khan