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This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).
Densitometry of photosystem I core protein protein (PsaA) during cell transformation and astaxanthin accumulation in H. pluvialis cultured in tubular photobioreactors. Inset shows the levels of PsaA protein. Representative results of three independent replicates are shown.