Plant Physiol.
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Plant Physiology 76:313-315 (1984)
© 1984 American Society of Plant Biologists

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Preferential Leaching of Pinitol from Soybeans during Imbibition 1

Philip Nordin

Department of Biochemistry, Willard Hall, Kansas State University, Manhattan, Kansas 66506

Sugars and cyclitols leached from soybeans (Glycine max var Sparks) during imbibition were assayed as a function of time. Pinitol leached many times faster than carbohydrates. During the initial 20 minutes of imibition, the pinitol/carbohydrate ratio was 3.4, declining to 0.29 for fully imbibed seeds. The value for dry soybeans was 0.14. Hypochlorite treatment of seeds more than doubled the rate at which carbohydrates leached out, but had little effect on pinitol. A role in development of soil microorganisms is postulated for pinitol.

1 Supported by the Kansas Agricultural Experiment Station, Contribution No. 84-392-J.






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Copyright © 1984 by the American Society of Plant Biologists