“…Many secondary metabolites are produced by large multienzyme complexes, usually either nonribosomal peptide synthetases (NRPSs), polyketide synthases (PKSs), or PKS-NRPS hybrids, where large multienzyme complexes modify and assemble individual peptides into a single active molecule (Welker et al, 2012). Cyanobacteria produce a wide range of bioactive compounds such as polyketides, polysaccharides, alkaloids, lipids, carotenes, fatty acids, vitamins, phycocyanin, and proteins, which possess many characteristics such as antiviral, antifungal, antibacterial, algicidal, anti-inflammatory, anti-aging, and anticancer activity (Mimouni et al, 2012;Demay et al, 2019;Verma et al, 2022;Yadav et al, 2023). Cyanobacteria include many different orders, with filamentous and colonial cyanobacteria being among the most productive sources of natural products (Mazard et al, 2016).…”