Saponin-Detoxifying Enzymes
Pathogenic fungi usually use different tactics to counteract induced and constitutive plant defense mechanisms that include degradation of any chemical compound and inhibition of plant triggered defenses by producing enzymes. Saponins as major bioactive c
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Bioactive Molecules in Plant Defense Saponins
Bioactive Molecules in Plant Defense
Mostafa Abdelrahman • Sudisha Jogaiah
Bioactive Molecules in Plant Defense Saponins
Mostafa Abdelrahman Botany Department, Faculty of Science Aswan University Aswan, Egypt
Sudisha Jogaiah Department of Biotechnology Karnatak University Dharwad, India
ISBN 978-3-030-61148-4 ISBN 978-3-030-61149-1 https://doi.org/10.1007/978-3-030-61149-1
(eBook)
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Preface
Saponins are a large group of bioactive compounds which are present in most of the medicinal and crop plant species. Saponin compounds are characterized by antimicrobial and pharmaceutical properties; thus, they are of great interest for both plant disease management and pharmaceutical industries. Saponin compounds can be classified based on their chemical structure into two main classes including triterpene saponins and steroidal saponins. Although the basic biosynthesis pathway through mevalonate kinase and plastidial methylerythritol phosphate pathway are involved in the upstream biosynthesis of saponin precursors, the downstream biosynthesis pathway of saponin remains elusive. The molecular diversity of oxidosqualene cyclase (OSC), which catalyzes the first diversifying step in steroidal saponin and triterpenoid biosynthesis, results in a diverse array of saponin substrates. After the basic skeleton is constructed by OSCs, the skeleton is tailored into a hydrophobic aglycone by cytochrome P450 monooxygenase, followed by further modification through glycosylation process. In this book, we will summarize and discuss the different aspects of saponin compounds and their r
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