TY - JOUR
T1 - Phytophthora quercetorum sp. nov., a novel species isolated from eastern and north-central USA oak forest soils
AU - Balci, Yilmaz
AU - Balci, Selin
AU - Blair, Jaime E.
AU - Park, Sook Young
AU - Kang, Seogchan
AU - Macdonald, William L.
N1 - Funding Information:
This research was funded in part by the USDA-Forest Service Northern (05-JV-11242328-060) and Pacific Southwest Research Stations (04-JV-11272138-440). A grant from the USDA-NRI Plant Biosecurity program (2005-35605-15393) supported the molecular analysis of Phytophthora quercetorum, and we thank Michael Coffey of the World Phytophthora Collection for kindly providing isolates for comparison. We are very grateful to Walter Gams and Arthur W.A.M. de Cock at Centraalbureau voor Schimmelcultures for improving the Latin description, for suggesting the epithet ‘quercetorum’ and their various valuable suggestions throughout the manuscript. We also thank the Editor and reviewers for their suggestions, which greatly improved the manuscript.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2008/8
Y1 - 2008/8
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=47149100662&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47149100662&partnerID=8YFLogxK
U2 - 10.1016/j.mycres.2008.02.008
DO - 10.1016/j.mycres.2008.02.008
M3 - Article
C2 - 18554891
AN - SCOPUS:47149100662
SN - 0953-7562
VL - 112
SP - 906
EP - 916
JO - Mycological Research
JF - Mycological Research
IS - 8
ER -