Effect of light and temperature on the cyanobacterium Arthronema africanum - a prospective phycobilinprotein-producing strain

0099817 - BÚ 2008 RIV US eng J - Journal Article
Chaneva, G. - Furnadzhieva, S. - Minkova, K. - Lukavský, Jaromír
Effect of light and temperature on the cyanobacterium Arthronema africanum - a prospective phycobilinprotein-producing strain.
[Vliv teploty a světla na sinici Arthronema africanum - kmen perspektivní pro produkci fykobilinproteinů.]
Journal of Applied Phycology. Roč. 19, č. 5 (2007), s. 537-544. ISSN 0921-8971. E-ISSN 1573-5176
R&D Projects: GA MŠMT 1M0571
Institutional research plan: CEZ:AV0Z60050516
Keywords : Arthronema africanum * chlorophyll-a * carotenoids
Subject RIV: EF - Botanics
Impact factor: 0.788, year: 2007

The effect of light intensity (50-300 mE.m-2.s-1) and temperature (15-50 oC) to contents of chlorophyll-a, C-phycocyanin, allophycocyanin and caroteneoids in biomass of Arthronema africanum was studied. Optima for production of both phycobiliproteins are light intensity of 150 mE.m-2.s-1 and temperature 36oC, when 23 and 12% of dry weights were reached. Chlorophyll-a content increased with time of cultivation but decreased with light intensity and temperature, maximum was 2.4% in 150 mE.m-2.s-1 and 36 oC. Carotenoids were about 1% of dry weight, correlated to chlorophyll-a under 50 and 100 mE.m-2.s-1, in 150 and 300 mE.m-2.s-1 they showed a mirror-shape curve to chlorophyll-a.

Byl studován vliv intenzity světla (50-300 mE.m-2.s-1) a teploty (15-50 oC) na obsah chlorofylu-a, C-fycocyaninu, allofykocyaninu a karotenoidů v biomase sinice Arthronema africanum. Optima pro produkci fykobiliproteinu jsou světlo 150 mE.m-2.s-1 a teplota 36oC, kdy bylo dosaženo 23 a 12% v sušině. Obsah chlorofylu-a se zvyšoval s časem kultivace, ale snižoval s intenzitou světla a teplotou, maximum bylo 2,4% při 150 mE.m-2.s-1 a 36 oC. Karotenoidy byly kolem 1% sušiny, v korelaci s chlorofylem-a při 50 - 100 mE.m-2.s-1, při 150 - 300 mE.m-2.s-1 vykazovaly zrcadlovoý průběh k chlorofylu-a.
Permanent Link: http://hdl.handle.net/11104/0158310