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Science 11 September 1964:
Vol. 145. no. 3637, pp. 1194 - 1195
DOI: 10.1126/science.145.3637.1194
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Articles

Glucose Transfer from Adenosine Diphosphate-Glucose to Starch in Preparations of Waxy Seeds

Oliver E. Nelson 1 and Chia Yin Tsai 1

1 Department of Botany and Plant Pathology, Purdue University, Lafayette, Indiana

Preparation of starch granules from the developing seeds of 17 different waxy mutants of maize all transfer glucose from adenosine diphosphate-glucose to starch at about one-tenth of the rate of similar preparations from seeds of non-waxy maize. The source of most, if not all, of the activity in preparations from waxy mutants is a limited number of enzymatically active starch granules from the embryo and maternal tissue of the seed. All starch granules in these tissues appear to be enzymatically active. The endosperm which is the site of most starch synthesis and storage is apparently devoid of transferase activity.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The Rise of the Angiosperms: A Genecological Factor.
D. L. Mulcahy and D. L. Mulcahy (1979)
Science 206, 20-23
   Abstract »    PDF »
Starch-Deficient Maize Mutant Lacking Adenosine Diphosphate Glucose Pyrophosphorylase Activity.
C.-Y. Tsai and O. E. Nelson (1966)
Science 151, 341-343
   Abstract »    PDF »


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