ISSN:
1432-2048
Keywords:
Algae (brown)
;
Carboxylation
;
CO2 assimilation
;
Laminaria
;
Photosynthesis (laminaria)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Various stages of the life cycle of the marine brown alga Laminaria saccharina (L.) Lamour. (Laminariales, Phaeophyta) including male and female gametophytes, female gametes, zygotes and young sporophytes of different age were investigated for their potentials of carbon dioxide (14CO2) fixation. Rates of photosynthesis attain the same order of magnitude in all stages. Photosynthetic 14CO2-fixation is accompanied by a substantial light independent carbon assimilation. This is confirmed by rate determinations of the equivalent carboxylating enzymes present in the plants, ribulose-1,5-bisphosphate carboxylase (EC 4.1.1.39) and phosphoenolpyruvate carboxokinase (EC 4.1.1.32) as well as by chromatographic analyses of the appropriate [14C]-assimilate patterns.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00380129
