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Characterization of the host-specific toxins produced byHelminthosporium sacchari, the causal organism of eyespot disease of sugarcane

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Summary

Investigation of the host-specific toxin complex fromH. sacchari has led to the isolation of 3 isomeric glycosidic components C39H64O22, each active at 2×10−11 moles. The 3 isomers consist of 4 galactose units linked to an aglycone residue C15H24O2.

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Author notes

  1. T. Wachs

    Present address: Department of Chemistry, Cornell University, 14853, Ithaca, N.Y.

  2. W. Acklin & D. Arigoni

    Present address: Laboratorium für Organische Chemie, Eidg. Technische Hochschule Zürich, CH-8092, Zürich, Switzerland

Authors and Affiliations

  1. Boyce Thompson Institute, Cornell University, 14853, Ithaca, N.Y., USA

    V. Macko, K. Goodfriend, T. Wachs, A. A. Renwick, W. Acklin & D. Arigoni

  2. Laboratory for Organic Chemistry, Swiss Federal Institute of Technology Zürich, CH-8092, Zürich, Switzerland

    V. Macko, K. Goodfriend, T. Wachs, A. A. Renwick, W. Acklin & D. Arigoni

  3. Department of Chemistry, Cornell University, 14853, Ithaca, N.Y.

    V. Macko, K. Goodfriend, A. A. Renwick, W. Acklin & D. Arigoni

Authors
  1. V. Macko
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  2. K. Goodfriend
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  3. T. Wachs
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  4. A. A. Renwick
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  5. W. Acklin
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  6. D. Arigoni
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Additional information

Acknowledgments. The Boyce Thompson-Cornell group thanks J.F. Rissler, University of Maryland, A.K. Bose, Stevens Institute of Technology, R. Barker and A. Serriani, Cornell University, and C. Grinnalds and J. Golay, Boyce Thompson Institute for help with various aspects of this work. Supported in part by a grant to V.M. from the US Department of Agriculture (8100720). The Zürich group thanks Dr G.A. Strobel, Department of Botany and Microbiology, Montana State University, Bozeman, for supplying a potent toxin-producing strain (M 36), a susceptible clone of sugarcane (51 NG 97), and a reference sample of helminthosporoside, Dr. K. Hostettmann and Mme M. Hostettmann-Kaldas, Pharmazeutisches Institut ETH Zürich, for assistance in developing the DCC separation and Sandoz A.G., Basel, for financial support.

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Macko, V., Goodfriend, K., Wachs, T. et al. Characterization of the host-specific toxins produced byHelminthosporium sacchari, the causal organism of eyespot disease of sugarcane. Experientia 37, 923–924 (1981). https://doi.org/10.1007/BF01971755

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  • DOI: https://doi.org/10.1007/BF01971755

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