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

TitlePhytophthora quercetorum sp. nov., a novel species isolated from eastern and north-central USA oak forest soils
Publication TypeJournal Article
Year of Publication2008
AuthorsBalci, Y, Balci, S, Blair, JE, Park, S-Y, Kang, S, Macdonald, WL
JournalMycological Research
Volume112
Issue8
Pagination906 - 916
Date Published08/2008
ISSN09537562
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.

URLhttp://www.sciencedirect.com/science/article/pii/S0953756208000841
DOI10.1016/j.mycres.2008.02.008
Short TitleMycological Research

References

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