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Digitale Medien

l-Ascorbic-acid biosynthesis in the euryhaline diatom Cyclotella cryptica (1984)

Grün, Michael ; Loewus, Frank A.

Springer

Planta 160 (1984), S. 6-11

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Details

ISSN: 1432-2048

Schlagwort(e): Ascorbic acid biosynthesis ; Bacillariophyta ; Cyclotella ; Glucosamine

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Abstract l-Ascorbic acid (AA) production in cells of Cyclotella cryptica Reimann, Lewin, Guillard (Bacillariophyceae) is enhanced when darkadapted cells are exposed to light.Heterotrophically grown cells incubated with d-[6-3H,6-14C]glucose and d-[1-3H,6-14C]glucose (2 h in dark followed by 15 h light) produced labeled AA with significantly different ratios of 3H and 14C. Comparisons of labeling patterns in AA and chitin-derived d-glucosamine support a path of conversion in Cyclotella from d-glucose to AA that “inverts” the carbon chain of the sugar. This process resembles similar conversions found in AA-synthesizing animals and species from two other algal classes.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00392459

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