Letter | Published:

Comparison of the Effects of Gibberellic Acid and Aflatoxin in Germinating Seeds

Naturevolume 214pages171172 (1967) | Download Citation



ONE biological activity attributed to gibberellic acid is the stimulation of protein synthesis in germinating seeds. The first such effect was reported for α-amylase1–3; Black and Altschul4 reported a similar effect for the synthesis of lipase in the distal halves of cottonseed (Gossypium hirsutum). This was not true for all samples of cottonseed investigated; in some there was apparently no need for exogenous gibberellic acid to support lipase development. Aflatoxin inhibited lipase formation in cottonseed4.

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    Paleg, L. G., Plant Physiol., 35, 902 (1960).

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    Paleg, L. G., Ann. Rev. Plant Physiol., 16, 291 (1965).

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    Varner, J. E., and Ram Chandra, G., Proc. U.S. Nat. Acad. Sci., 52, 100 (1964).

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    Black, H. S., and Altschul, A. M., Biochem. Biophys. Res. Comm., 19, 661 (1965).

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    St. Angelo, A. J., and Altschul, A. M., Plant Physiol., 39, 880 (1964).

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    Smith, R. H., Biochem. J., 88, 50P (1963).

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    Legator, M. S., Zuffante, S. M., and Harp, A. R., Nature, 208, 345 (1965).

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    Sporn, M. B., Dingman, C. W., Phelps, H. L., and Wogan, G. N., Science, 151, 1539 (1966).

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Author notes

    • H. C. JONES

    Present address: Division of Forestry Development, T.V.A., Norris, Tennessee, U.S.A.

    • H. S. BLACK

    Present address: M.D. Anderson Hospital and Tumor Institute, Houston, Texas, U.S.A.


  1. Seed Protein Pioneering Research Laboratory, New Orleans, Louisiana

    • H. C. JONES
    • , H. S. BLACK
    •  & A. M. ALTSCHUL


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