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NIACIN BIOSYNTHESIS IN LEAF DISCS AND SEEDLINGS OF CATTLEYA SKINNERI (ORCHIDACEAE)

Authors

  • JAN L. COOPER,

    1. Department of Developmental and Cell Biology, University of California, Irvine, California 92717, U.S.A.
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  • BRENDA L. HILTON,

    1. Department of Developmental and Cell Biology, University of California, Irvine, California 92717, U.S.A.
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  • JOSEPH ARDITTI,

    1. Department of Developmental and Cell Biology, University of California, Irvine, California 92717, U.S.A.
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  • JOHN B. TARR

    1. Department of Developmental and Cell Biology, University of California, Irvine, California 92717, U.S.A.
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    • Analytical Development Corporation, 1875 Willow Park Way, P.O. Box 744, Monument, Colorado 80132, U.S.A.


Summary

Seedlings and leaf discs of Cattleya skinneri incorporated label from 14C- and 3H-labelled tryptophan into niacin. Label from [14C]glycerol and[14C]aspartate was not significantly incorporated into the vitamin.

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