Influence of irradiation quality on photosynthetic pigments, saccharides, nitrate reductase activity, thylakoid organization and growth of Ulva pertusa

Influence of irradiation quality on photosynthetic pigments, saccharides, nitrate reductase activity, thylakoid organization and growth of Ulva pertusa

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 whe...

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Veröffentlicht in:Biologia plantarum 1998-04, Vol.40 (2)
Hauptverfasser: Muthuvelan, B, Fujimori, K. (United Graduate School of Agricultural Sciences, Kagoshima (Japan)), Murugan, C, Kulandaivelu, G
Format: Artikel
Sprache:eng
Schlagworte:
ACTIVIDAD ENZIMATICA
ACTIVITE ENZYMATIQUE
ALGAE
CARBOHYDRATE CONTENT
CHLOROPHYLLE
CHLOROPHYLLS
CLOROFILAS
CONTENIDO DE CARBOHIDRATOS
ENZYMIC ACTIVITY
GROWTH RATE
INDICE DE CRECIMIENTO
IRRADIACION
IRRADIATION
NITRATE REDUCTASE
NITRATO REDUCTASA
TAUX DE CROISSANCE
TENEUR EN GLUCIDES
THYLAKOIDE
THYLAKOIDS
TILACOIDES
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Zusammenfassung: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.
ISSN:0006-3134
1573-8264