Mohammed Fadhil HADDAD1,2,3, Tugba DAYIOGLU1,2, Barbaros NALBANTOĞLU2, Turgay CAKMAK1,*
BIOCELL, Vol.43, No.4, pp. 327-333, 2019, DOI:10.32604/biocell.2019.08522
Abstract Cyanobacteria are considered as a sustainable feedstock for the production of biochemically active
compounds such as phycobiliproteins (PBPs). In this study, the impact of nitrogen (N) and phosphorus (P) availability
on PBP production of “N-free acclimated” Anabaena variabilis IMU8 was analyzed. Upon isolation and identification,
the cyanobacterium has been maintained in N-free BG-11 medium for more than 20 months. For experimentation, the
strain was incubated in N-replete, N-depleted, N-P-depleted BG-11 medium. Long-term diazotrophic cultivation of A.
variabilis IMU8 resulted in elevated PBP productivity with a limited impact on growth. When compared to N-depleted
ones, N supply stimulated More >
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