title: Heterotrophic growth of blue-gren algae in dim light.
abstract: A unicellular blue-green alga, Agmenellum quadruplicatum, and a filamentous blue-green alga, Lyngbya lagerheimíi, were grown heterotrophically in dim light with glucose as major source of carbon and possibly energy. The dim-light conditions did not support autotrophic growth. The two blue-green algae appeared to have the same metabolic block, namely an incomplete tricarboxylic acid cycle, as has been found in other obligately phototrophic blue-green algae. Under dim-light conditions, glucose made a greater contribution to cell constituents (amino acids) of A. quadruplicatum and L. lagerheimii than under high-light conditions.
mesh_terms: D000085:Acetates / Q000378:metabolism; D000596:Amino Acids / Q000378:metabolism; D001345:Autoradiography; D002244:Carbon / Q000378:metabolism; D002247:Carbon Isotopes; D002854:Chromatography, Paper; D003470:Culture Media; D000458:Cyanobacteria / Q000254:growth & development* / Q000378:metabolism; D004586:Electrophoresis; D005947:Glucose / Q000378:metabolism; D008027:Light; D010209:Paper; D011773:Pyruvates / Q000378:metabolism
chemical_list: D000085:Acetates; D000596:Amino Acids; D002247:Carbon Isotopes; D003470:Culture Media; D011773:Pyruvates; D002244:Carbon; D005947:Glucose