Letter | Published:

Influence of Red and Far-red Light on the Photo-oxidation of Ascorbic Acid and Photoreduction of its Oxidized Forms

Nature volume 204, pages 886887 (28 November 1964) | Download Citation

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Abstract

PHOTO-OXIDATION of ascorbate and photoreduction of its oxidized forms have been demonstrated in leafy tissues1,2. In these investigations evidence was obtained that photoreduction was a separate photochemical reaction from photo-oxidation, being differentiated from the latter by: (1) a different time sequence in its initiation by light; (2) its insensitivity to cyanide; (3) its more heatlabile nature; (4) the ability of red light (710–720 mµ) to activate photo-oxidation but not photoreduction.

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References

  1. 1.

    , Biochem. J., 85, 360 (1962).

  2. 2.

    , Phytochem., 3, 429 (1964).

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Author information

Affiliations

  1. Low Temperature Research Station, Downing Street, Cambridge.

    • L. W. MAPSON
    •  & T. SWAIN

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DOI

https://doi.org/10.1038/204886a0

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