Abstract
HELMINTHOSPOROL (I) was isolated from a culture of Helminthosporium sativum by Tamura et al.1, and was shown in this and subsequent studies2 to stimulate the growth of the second leaf sheath of rice seedlings. However, (I) did not promote the growth of dwarf maize, nor did it give positive results in some other biological tests. Subsequently, Tamura and Sakurai3 prepared a variety of related compounds and showed that (I) and helminthosporic acid, (II), promoted the elongation of rice seedlings and of lettuce seedling hypocotyls grown in light4. Thus, at high dose levels, these substances sometimes showed gibberellin-like activity. Various substances related to (−)-kaurene are probably on the biosynthetic pathway to gibberellic acid, (III), in Gibberella fujikuroi5,6, and probably in higher plants also7. Some of these substances give positive results in a number of biological tests for gibberellins8,9, as does steviol10. Gibberella converts steviol to an unidentified substance having activity in a wider range of test systems11.
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References
Tamura, S., Sakurai, A., Kainuma, K., and Takai, M., Agric. Biol. Chem. (Tokyo), 27, 739 (1963).
Kato, J., Shiotani, Y., Tamura, S., and Sakurai, A., Naturwissenschaften, 51, 340 (1964).
Tamura, S., and Sakurai, A., Agric. Biol. Chem. (Tokyo), 28, 337 (1964).
Frankland, B., and Wareing, P. F., Nature, 185, 255 (1960).
Cross, B. E., Galt, R. H. B., and Hanson, J. R., J. Chem. Soc., 2937, 2944 (1963).
Cross, B. E., Galt, R. H. B., and Hanson, J. R., J. Chem. Soc., 295 (1964).
Graebe, J. E., Dennis, D. T., Upper, C. D., and West, C. A., J. Biol. Chem., 240, 1847 (1965).
de Mayo, P., Spencer, E. Y., and White, R. W., J. Amer. Chem. Soc., 84, 494 (1962).
Katsumi, M., Phinney, B. O., Jeffries, P. R., and Henrick, C. A., Science, 144, 849 (1964).
Ruddat, M., and Lang, A., Naturwissenschaften., 50, 23 (1963).
Heftmann, E., Ruddat, M., and Lang, A., Fed. Proc., 24, 294 (1965).
Briggs, D. E., J. Inst. Brew., 69, 244 (1963).
Briggs, D. E., J. Inst. Brew., 69, 13 (1963).
Cathey, H. M., Ann. Rev. Plant Physiol., 15, 271 (1964).
Harada, H., and Lang, A., Plant Physiol., 39, 176 (1964).
de Mayo, P., Spencer, E. Y., and White, R. W., Canad. J. Chem., 39, 1608 (1961).
de Mayo, P., Spender, E. Y., and White, R. W., Canad. J. Chem., 41, 2996 (1963).
Bell, R. A., and Ireland, R. E., Tetrahedron Letters, No. 4, 269 (1963).
Paleg, L., Aspinall, D., Coombe, B., and Nicholls, P., Plant Physiol., 39, 286 (1964).
Griffiths, C. M., MacWilliam, I., and Reynolds, T., Nature, 202, 1026 (1964).
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BRIGGS, D. Gibberellin-like Activity of Helminthosporol and Helminthosporic Acid. Nature 210, 418–419 (1966). https://doi.org/10.1038/210418b0
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DOI: https://doi.org/10.1038/210418b0
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