Abstract
The diatomsChaetoceros sp.,Skeletonema costatum andThalassiosira pseudonana were grown with different irradiances of white and of blue-green light, and with a mixture of blue-green plus 6.5 μmol m−2 s−1 of white light. Exponential growth rates were higher in mixed blue for the first two, whileT. pseudonana grew faster in white light but, in all cases, mean cell division rates did not differ with increasing irradiances. Harvesting in stationary, rather than in late exponential growth phase, resulted in higher protein contents forChaetoceros sp. andS. costatum, but forT. pseudonana the highest value was in the exponential phase. The highest protein content was in blue-green light for the three species and it increased with irradiance. As to other fractions, the three strains showed different responses, related to quality and quantity, as well as to culture ages.
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del Pilar Sánchez-Saavedra, M., Voltolina, D. Effect of blue-green light on growth rate and chemical composition of three diatoms. J Appl Phycol 8, 131–137 (1996). https://doi.org/10.1007/BF02186316
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DOI: https://doi.org/10.1007/BF02186316