Pathway of mannitol formation during photosynthesis in brown algae

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概要

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• Eisenia bicyclis. Arame, was allowed to photosynthesize in seawater containing H^<14>CO_3^-, and ^<14>C-mannitol was isolated from its fronds. The ratio of ^<14>C-total/^<14>C_1 + ^<14>C_6 in the ^<14>C-mannitol was found to be about 8.0 at 1 min-illumination, but gradually decreased with time to 3.0, showing uniform radioactivity distribution. Mannitol therefore seems to be formed in brown algae through three carbon compounds. Enzymes which may be involved in the possible biosynthetic pathway of mannitol, i. e. aldolase, hexose diphosphatase, mannitol-1-phosphatase and glucosephosphate isomerase were present in extracts from several brown algae. Some of their properties are discussed.

• 日本植物生理学会の論文

著者

• Nisizawa Kazutosi

  Botanical Institute Tokyo Kyoiku University

• Nisizawa Kazutosi

  Botanical Institute Faculty Of Science Tokyo Kyoiku University

• Yamaguchi Toshijiro

  Botanical Institute Tokyo Kyoiku University:(present)reseach Institute Seikagaku Kogyo Co. Ltd.

• Ikawa Tomoyoshi

  Botanical Institute Tokyo Kyoiku University

関連論文

• Enzymic synthesis of floridean starch in a red alga, Serraticardia maxima
• Pathway of mannitol formation during photosynthesis in brown algae
• INCORPORATION OF RADIOACTIVE CARBON FROM H^CO_3^- INTO SUGAR CONSTITUENTS BY A BROWN ALGA, EISENIA BICYCLIS, DURING PHOTOSYNTHESIS AND ITS FATE IN THE DARK
• SOME ENZYMES RELATING TO THE METABOLISM OF STARCH IN A SEA-LETTUCE
• Nature of the Macerating Enzymes from Rhizopus sp.

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