Influence of irradiation quality on photosynthetic pigments, saccharides, nitrate reductase activity, thylakoid organization and growth of Ulva pertusa
1998
Muthuvelan, B. | Fujimori, K. (United Graduate School of Agricultural Sciences, Kagoshima (Japan)) | Murugan, C. | Kulandaivelu, G.
A floating green alga Ulva pertusa was grown in the laboratory under various irradiations: "white light" (as reference, broad spectral band, WLC), red radiation (600-700 nm, RRC) and blue radiation (400-500 nm, BRC). During 15 d of culture, the specific growth rate of WLC varied highly when compared to BRC and RRC. The contents of chlorophyll (Chl) and proteins, and the nitrate reductase (NR) activity were significantly higher in BRC than in RRC while the content of saccharides was slightly higher in RRC than BRC. U. pertusa in WLC had the highest contents of saccharides, proteins, and Chl, and the highest NR activity.
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