CARBON FIXATION IN CULTURED MARINE BENTHIC DIATOMS1

Autor:	Michael J. Sullivan, Paul V. Zimba, Hilary Glover
Rok vydání:	1990
Předmět:	biology Nitzschia Ribulose RuBisCO Carbon fixation Plant Science Aquatic Science biology.organism_classification Photosynthesis Enzyme assay chemistry.chemical_compound Algae chemistry Botany biology.protein Phosphoenolpyruvate carboxylase
Zdroj:	Journal of Phycology. 26:306-311
ISSN:	1529-8817 0022-3646
DOI:	10.1111/j.0022-3646.1990.00306.x
Popis:	The enzyme activity of ribulose 1,5-bisphosphate carboxylase-oxygenase (RuBisCO) and phosphoenolpyruvate carboxylase (PECP) was measured in four species of marine benthic diatoms isolated from subtidal sediments of Graveline Bayou, Mississippi. Enzyme activities were measured in cultures of Amphora micrometra Giffen, A. tenerrima Aleem and Hustedt, Nitzschia fontifuga Cholnoky, and Nitzschia vermicularis Grunow that were grown at light levels supporting μ max and at light-limiting irradiances. All four species exhibited similar RuBisCO:PEP ratios (range=1-1.8) at μ max ; the lowest ration (0.4) was observed in A. micrometra. Reduced light levels increased PEPC relative to that measured at μ max in two species (...)
Databáze:	OpenAIRE
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