A new homothallic Phytophthora from the jarrah forest in Western Australia

M. J. C. Stukely; J. L. Webster; J. A. Ciampini; N. L. Kerp; I. J. Colquhoun; W. A. Dunstan; G. E. St. J. Hardy

doi:10.1071/DN07022

RESEARCH ARTICLE

A new homothallic Phytophthora from the jarrah forest in Western Australia

M. J. C. Stukely ^A ^D , J. L. Webster ^A , J. A. Ciampini ^A , N. L. Kerp ^C , I. J. Colquhoun ^C , W. A. Dunstan ^B and G. E. St. J. Hardy ^B

+ Author Affiliations

- Author Affiliations

^A Science Division, Department of Environment and Conservation, Locked Bag 104, Bentley Delivery Centre, WA 6983, Australia.

^B Centre for Phytophthora Science and Management, School of Biological Sciences and Biotechnology, Murdoch University, Murdoch, WA 6150, Australia.

^C Alcoa World Alumina Australia, PO Box 172, Pinjarra, WA 6208, Australia.

^D Corresponding author. Email: Mike.Stukely@dec.wa.gov.au

Australasian Plant Disease Notes 2(1) 49-51 https://doi.org/10.1071/DN07022
Submitted: 14 December 2006 Accepted: 23 March 2007 Published: 11 April 2007

Abstract

A homothallic Phytophthora, isolated at irregular intervals since the 1980s from Western Australian jarrah (Eucalyptus marginata) forest sites, has been previously misidentified as P. citricola based on morphological characters. Based on rDNA sequencing, it has been shown to be an undescribed species that is provisionally designated ‘Phytophthora sp. WA2’ pending a full description. It has been associated with lower stem lesions and root necrosis on dying 1- to 2-year-old jarrah seedlings growing in rehabilitated open-cut bauxite mine pits.

Additional keywords: DNA sequencing, Phytophthora cinnamomi.

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