Phytophthora pluvialis

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Phytophthora pluvialis
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Clade: Sar
Clade: Stramenopiles
Clade: Pseudofungi
Class: Oomycetes
Order: Peronosporales
Family: Peronosporaceae
Genus: Phytophthora
Species:
P. pluvialis
Binomial name
Phytophthora pluvialis
Reeser, Sutton & Hansen, 2013

Phytophthora pluvialis is a semi-papillate plant pathogen, causing red needle cast disease. This mainly infects tanoak-Douglas-fir forests of western Oregon. [1] It was reported in Cornwall. UK, in October 2021; the first record for Europe. [2]

Contents

Description

Phytophthora pluvialis is homothallic; it forms oogonia in culture. Its oogonia are terminal, smooth and globose, being approximately 30 μm in diameter, and possess amphigynous antheridia. Its oospores are globose and aplerotic, being about 28 μm in diameter. Sporangia formed in water are ovoid and slightly irregular, semi-papillate, terminal or subterminal, and partially caducous with medium-sized pedicels. [1]

References

  1. 1 2 Reeser, P. (2013). "Phytophthora pluvialis, a new species from mixed tanoak-Douglas-fir forests of western Oregon, U.S.A". North American Fungi: 1–8. doi: 10.2509/naf2013.008.007 (inactive 12 July 2025).{{cite journal}}: CS1 maint: DOI inactive as of July 2025 (link)
  2. ↑ "'Robust action' taken against tree disease found in Cornwall". BBC News. 22 October 2021. Retrieved 13 November 2021.

Further reading

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