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Glutamate Metabolism in Intact Seedlings and Seedling Segments of Peas

Inga M. Melcher
The New Phytologist
Vol. 103, No. 4 (Aug., 1986), pp. 685-688
Published by: Wiley on behalf of the New Phytologist Trust
Stable URL: http://www.jstor.org/stable/2433237
Page Count: 4
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Glutamate Metabolism in Intact Seedlings and Seedling Segments of Peas
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Abstract

Glutamate metabolism in intact cotyledons of pea seedlings (Pisum sativum L.) differs considerably from that in cotyledon slices. No decarboxylation of glutamate was found in intact cotyledons, whereas the decarboxylation in sliced cotyledons was so large that γ-aminobutyric acid (γ Abu) was by far the predominant metabolic product of glutamate. A number of mechanisms that could trigger glutamate decarboxylase activity are discussed.

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