Consulta: creatorFacets:"Aidar,Elizabeth"
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Extra and intracelular activities of carbonic anhydrase of the marine microalga Tetraselmis gracilis (Chlorophyta)
Provedor de dados: Brazilian Journal of Microbiology
Autores: Rigobello-Masini,Marilda; Aidar,Elizabeth; Masini,Jorge C.
The activities of extra and intracellular carbonic anhydrases (CA) were studied in the microalgae Tetraselmis gracilis (Kylin) Butcher (Chlorophyta, Prasinophyceae) growing in laboratory cultivation. During ten days of batch cultivation, daily determinations of pH, cell number, enzymatic activity, and total dissolved inorganic carbon (DIC), as well as its main species, CO2 and HCO3-, were performed. Enzymatic activity increased as the growing cell population depleted inorganic carbon from the medium. Carbon dioxide concentration decreased quickly, especially in the third day of cultivation, when a significant increase of the intracellular enzymatic activity was observed. Bicarbonate concentration had its largest decrease in the cultivation medium in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algal photosynthesis; Carbon concentrating mechanism; Carbonic anhydrase; Inorganic carbon uptake; Tetraselmis gracilis.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822003000300017