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Disassociation of oogonia formation from oospore production inPhytophthora cactorum by sterols with varying side chain lengths

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Summary

A series of 20(R)-n-alkylpregn-5-en-3β-ols with 0 to 9 (but not with 12) C-atoms in the alkyl group induced formation of oogonia inPhytophthora cactorum. However, maturation of the oogonia into germinating oospores occurred only when the alkyl group had 4–7 C-atoms.

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References

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Authors and Affiliations

  1. Plant Physiology and Chemistry Research Unit, ARS/USDA, 94710, Berkeley, California, USA

    W. David Nes & W. R. Nes

  2. Department of Biological Sciences, Drexel University, 19104, Philadelphia, Pennsylvania, USA

    W. David Nes & W. R. Nes

Authors
  1. W. David Nes
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  2. W. R. Nes
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Additional information

W.R.N. thanks the National Institutes of Health for support through grant No. AM-12172. We also appreciate the help of Mr A. Stafford and of Dr W. Haddon of the USDA, Berkeley, in obtaining the mass spectral and some of the chromatographic data. Reference to a company and/or product named by the Department is only for purposes of information and does not imply approval or recommendation of the product to the exclusion of others which may also be suitable.

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David Nes, W., Nes, W.R. Disassociation of oogonia formation from oospore production inPhytophthora cactorum by sterols with varying side chain lengths. Experientia 39, 276–278 (1983). https://doi.org/10.1007/BF01955301

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  • DOI: https://doi.org/10.1007/BF01955301

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