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Photoprotective Compounds: Diversity, Biosynthetic Pathway and Genetic Regulation

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Photoprotective Green Pharmacology: Challenges, Sources and Future Applications

Abstract

The rapid increment in atmospheric pollution causes loss of stratospheric ozone which enhances the exposure of harmful ultraviolet radiation (UV) on the earth’s surface. The detrimental impact of UV-A and UV-B causes photodamage, alteration in normal physiological processes of aquatic and terrestrial organisms. However, certain inbuilt existence of photoprotective compounds makes organisms to counteract with harmful UV radiations. Most of the groups of organisms such as cyanobacteria, algae, lichens, fungi, bryophytes, higher plants, and certain animals have unique photoprotective strategies for survivability under harsh radiation. Various types of secondary metabolites such as mycosporine-like amino acids (MAAs), mycosporine, scytonemin, lycopodine, carotenoids, and melanin are inherently synthesized in most of the organisms for protection from deleterious ultraviolet radiation. In the last few decades, most of the genetic and metabolomics pathways for synthesis of photoprotective compounds have been well established. However, industrial-scale production is still undeveloped due to limited knowledge of gene expression and cost-effective rapid production in various group of organisms. This chapter briefly describes the presence of different photoprotective compounds in various taxa of organisms. This chapter also deals with the biosynthetic pathways and genetic regulation of certain compounds for production and commercial applications in various group of life sciences and cosmetic industries.

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Acknowledgements

Vinod K. Kannaujiya acknowleges IoE-Seed Grant, BHU, Varanasi (Scheme No. 6031) and Core Research Grant, DST-SERB, New Delhi (CRG/2020/001323) for financial support. Saumi is thankful to UGC and BHU for providing a research fellowship.

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Pandey, S., Kannaujiya, V.K. (2023). Photoprotective Compounds: Diversity, Biosynthetic Pathway and Genetic Regulation. In: Kannaujiya, V.K., Sinha, R.P., Rahman, M.A., Sundaram, S. (eds) Photoprotective Green Pharmacology: Challenges, Sources and Future Applications. Springer, Singapore. https://doi.org/10.1007/978-981-99-0749-6_4

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