Malic Enzyme Activity in Apple Fruit

THE capacity of apple fruit to decarboxylate malic acid oxidatively (the malate effect) is evident early in apple fruit ontogeny 1 , as well as in the stages characterized by the climacteric and post-climacteric phases of fruit respiration 2 . The stoichiometric characteristics of the malate decarbo...

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Bibliographic Details
Published in:Nature (London) 1962-10, Vol.196 (4852), p.387-388
Main Author: DILLEY, D. R
Format: Article
Language:English
Subjects:
Humanities and Social Sciences
letter
multidisciplinary
Science
Science (multidisciplinary)
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Summary:THE capacity of apple fruit to decarboxylate malic acid oxidatively (the malate effect) is evident early in apple fruit ontogeny 1 , as well as in the stages characterized by the climacteric and post-climacteric phases of fruit respiration 2 . The stoichiometric characteristics of the malate decarboxylation reaction 1 and the symmetrical distribution of carbon-14 in malic acid resulting from 14 CO 2 fixation in apple fruit 3 suggested the malic enzyme may function in both reactions. This investigation was initiated to determine if malic enzyme is responsible for malate decarboxylation and carbon dioxide fixation into malic acid in apple fruit.
ISSN:0028-0836
1476-4687
DOI:10.1038/196387a0