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Plant Physiology 57:846-849 (1976)
© 1976 American Society of Plant Biologists

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Articles

Glucolipids of Zea mays and Pisum sativum1

Yukio Morohashi2 and Robert S. Bandurski

a Department of Botany and Plant Pathology, Michigan State University, East Lansing, Michigan 48824

The glucolipids formed upon feeding (U-14C)glucose to embryos of Zea mays were partially characterized with respect to: (a) metabolic turnover, (b) acid lability, (c) phosphorus content, (d) chromatographic properties, and (e) hydrolysis products. The chloroform-methanol-soluble assimilated radioactivity was examined specifically for occurrence of a glycosylated prenol phosphate. With the extraction conditions used, no evidence was found for formation of a glucosylated prenol phosphate. Several, as yet unidentified, acid-labile glucolipids undergoing metabolic turnover were observed. Four diglycerides were characterized as hydrolysis products of a fraction that contained 14C-glucose and phosphorus, and was subject to metabolic turnover. Examination of the 1-butanol-soluble glucolipids from pea (Pisum sativum) seedlings also demonstrated anionic glucolipids, evidencing metabolic turnover but none with the properties of glucosylated prenol phosphate.

2 Present address: Tokyo University of Agriculture and Technology, Fuchu, Tokyo 183, Japan.

1 This work was supported, in part, by the National Science Foundation (GB-18353X and GB-40821X). Scintillation counting equipment was provided by the United States Atomic Energy Commission, Contract AT-(11-1)-1338, and mass spectrometric facilities by a National Institute of Health grant (PHS RR-00480) to Professor C. C. Sweeley. Journal Article 7089 from the Michigan Agriculture Experiment Station.






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Copyright © 1976 by the American Society of Plant Biologists