Characterization of mycorrhizal fungi isolated from the threatened Cypripedium macranthos in a northern island of Japan: two phylogenetically distinct fungi associated with the orchid

@article{Shimura2009CharacterizationOM,
  title={Characterization of mycorrhizal fungi isolated from the threatened Cypripedium macranthos in a northern island of Japan: two phylogenetically distinct fungi associated with the orchid},
  author={Hanako Shimura and Mai Sadamoto and Mayumi Matsuura and Takayuki Kawahara and Shigeo Naito and Yasunori Koda},
  journal={Mycorrhiza},
  year={2009},
  volume={19},
  pages={525-534}
}
We isolated Rhizoctonia-like fungi from populations of the threatened orchid Cypripedium macranthos. In ultrastructural observations of the septa, the isolates had a flattened imperforate parenthesome consisting of two electron-dense membranes bordered by an internal electron-lucent zone, identical to the septal ultrastructure of Rhizoctonia repens (teleomorph Tulasnella), a mycorrhizal fungus of many orchid species. However, hyphae of the isolates did not fuse with those of known tester… CONTINUE READING

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