Light intensity and nitrogen effectively control exopolysaccharide production by the green microalga Botryococcus braunii (Trebouxiophyceae)

0493067 - BÚ 2019 RIV BG eng J - Článek v odborném periodiku
Cepák, Vladislav - Přibyl, Pavel
Light intensity and nitrogen effectively control exopolysaccharide production by the green microalga Botryococcus braunii (Trebouxiophyceae).
Genetics and Plant Physiology. Roč. 8, 1-2 (2018), s. 24-37. ISSN 1314-6394
Grant CEP: GA TA ČR TE01020080; GA TA ČR TA03011027
Institucionální podpora: RVO:67985939
Klíčová slova: Botryococcus braunii * exopolysaccharides * nitrate
Obor OECD: Plant sciences, botany

The production of exopolysaccharides (EPS) in the green microalga Botryococcus braunii was strongly dependent not only on the nitrogen concentration in the cultivation medium, but also on the intensity of light. At higher light intensities (650-950 μmol m-2 s-1), EPS production was dependent on the nitrogen concentration in the cultivation medium. The optimal conditions of light and nitrogen for EPS production were 950 μmol m-2 s-1 and 6 mM nitrate, respectively, under which EPS approached 2 mg mL-1. These conditions were accompanied by significant ultrastructural changes.
Trvalý link: http://hdl.handle.net/11104/0287332