Scientific journal
Scientific Review. Biological science
ISSN 2500-3399
ПИ №ФС77-57454

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CONTINUOUS CULTIVATION OF STRAINS WITH REDUCED PHOTOSYNTHETIC APPARATUS OF PURPLE BACTERIA RHODOBACTER SPHAEROIDES

Eltsova Z.A. 1
1 Institute of Basic Biological Problems RAS
Mutants with reduced photosynthetic apparatus and wild type mutant of purple nonsulfur bacteria Rhodobacter sphaeroides was grown in the continuous culture in photobioreactor. It was shown, the DBCΩ strain without peripheral antenna complex are able to grow very stable during a long time under flowing coindition, unlike another strain with reduced photosynthetic apparatus, pRK puf DD13. The grow rate of DBCΩ was 0,1 h-1. Saturated light intensity for this strain was 14 W/m2. Total concentration of bacteriochlorophyll a decreased with increasing of light intensity for both strains, wild type strain and DBCΩ. During the experiments has been found that DBCΩ strain is suitable for biotechnological application, for biohydrogen production, for example.