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Growth requirements of blue-green algae under blue light conditions

✍ Scribed by Warren M. Pulich; Chase Baalen

Publisher
Springer
Year
1974
Tongue
English
Weight
564 KB
Volume
97
Category
Article
ISSN
0302-8933

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✦ Synopsis

  1. Growth requirements of blue-green algae containing only the c-phycocyanin -[-chlorophyll a pigment system have been studied under blue light (380--540 nm) which approximates light conditions existing in subsurface waters in nature.

  2. While a few species were capable of very slow photosynthetic growth on minimal medium with NO a-as nitrogen source, most species were dependent on organic compounds for comparable growth under this condition. Some organisms did quite well with only Casamino Acids as a supplement, others did well with only glucose. One species, Agmenellum quadruplicatum strain PR-6, grew only when glucose and Casamino Acids were supplied simultaneously.

  3. Inhibitory effects of blue light on CO S fixation and nitrogen metabolism are noted as possible explanations of these responses.

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