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Cytology of Helminthosporium oryzae

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Abstract

The cells of the somatic hyphae and conidia of Helminthosporium oryzae were multinucleate. The number of nuclei in each cell varied greatly. Conidial cells contained more nuclei than hyphal cells. Hyphal fusions with subsequent nuclear migration were observed in all parts of the colony. All these results strongly indicated that the abnormally high variation rate of H. oryzae among isolates or subcultures of the same isolate may be attributable to the perpetuation of heterokaryosis as a result of the high frequency of anastomosis and nuclear division.

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Authors and Affiliations

  1. Biotech Research Laboratories, Inc., 3 Taft Court, 20850, Rockville, MD

    C. H. Lee, H. H. Hou & S. C. Jong

  2. American Type Culture Collection, 12301 Parklawn Drive, 20852, Rockville, MD, USA

    S. C. Jong

Authors
  1. C. H. Lee
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  2. H. H. Hou
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  3. S. C. Jong
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Lee, C.H., Hou, H.H. & Jong, S.C. Cytology of Helminthosporium oryzae . Mycopathologia 87, 23–27 (1984). https://doi.org/10.1007/BF00436621

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