Phytophthora quercetorum sp. nov., a novel species isolated from eastern and north-central USA oak forest soils

Yilmaz Balci, Selin Balci, Jaime E. Blair, Sook Young Park, Seogchan Kang, William L. Macdonald

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Isolates belonging to an undescribed Phytophthora species were frequently recovered during an oak forest soil survey of Phytophthora species in eastern and north-central USA in 2004. The species was isolated using an oak leaf baiting method from rhizosphere soil samples collected from Quercus rubra, Q. macrocarpa, and Q. phellos. This species is formally described as P. quercetorum. It is homothallic and has aplerotic oogonia and paragynous antheridia. It produces papillate sporangia (occasionally bipapillate) of ovoid-elongated shapes. Its temperature optimum for growth is ca 22.5 °C with the upper limit of ca 32.5 °C. P. quercetorum differs from the morphologically related P. quercina in producing distinct submerged colony-patterns, different growth-temperature requirements, and oogonial shapes and sizes. Phylogenetic analyses using seven nuclear loci supported P. quercetorum as a novel species within clade 4, closely related to P. arecae, P. palmivora, P. megakarya, and P. quercina.

Original languageEnglish (US)
Pages (from-to)906-916
Number of pages11
JournalMycological Research
Volume112
Issue number8
DOIs
StatePublished - Aug 1 2008

Fingerprint

Phytophthora
forest soils
forest soil
Quercus
Quercus phellos
Soil
Oogonia
Quercus macrocarpa
Sporangia
forest surveys
oogonia
Rhizosphere
Temperature
Quercus rubra
baiting
new species
sporangia
soil surveys
Growth
rhizosphere

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Plant Science

Cite this

Balci, Yilmaz ; Balci, Selin ; Blair, Jaime E. ; Park, Sook Young ; Kang, Seogchan ; Macdonald, William L. / Phytophthora quercetorum sp. nov., a novel species isolated from eastern and north-central USA oak forest soils. In: Mycological Research. 2008 ; Vol. 112, No. 8. pp. 906-916.
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Phytophthora quercetorum sp. nov., a novel species isolated from eastern and north-central USA oak forest soils. / Balci, Yilmaz; Balci, Selin; Blair, Jaime E.; Park, Sook Young; Kang, Seogchan; Macdonald, William L.

In: Mycological Research, Vol. 112, No. 8, 01.08.2008, p. 906-916.

Research output: Contribution to journalArticle

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