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More new Phytophthora species from natural ecosystems in Western Australia

Simamora, A., Hardy, G., Stukely, M. and Burgess, T.ORCID: 0000-0002-7962-219X (2012) More new Phytophthora species from natural ecosystems in Western Australia. In: 6th International Union of Forest Research Organisations,IUFRO Working Party 7-02-09, 9 - 16 September, Córdoba, Spain.


In 2009 (Plant Dis. 93:215‐223) we reported 11 apparently new Phytophthora species, designated P.sp.1‐11, from natural ecosystems in Western Australia WA). Since then many of these species have been described: P. multivora (P.sp.4), P. elongata (P.sp.2), P. constricta (P.sp.9), P. arenaria (P.sp.1), P. thermophila (P.sp.3), P. litoralis (P.sp.11), P. gregata (P.sp.7), P. fluvialis (P.sp.8). P.sp.5 falls in the P. cryptogea species complex and P.sp.6 has been identified as P. taxon personii . Additionally we have described P. gibbosa and P. amnicola. Further sampling and continued molecular re‐evaluation of the culture collection at the Department of Environment and Conservation’s Vegetation Health Service (VHS) has uncovered more new species tentatively named P. aff. humicola, P. aff. rosacearum, P. aff. elongata, P. aff. arenaria, P. aff. captiosa, P. taxon. kwongan (=P.sp.10), P. taxon. casuarina. A large number of the new species are from ITS clade 6, sub‐clade I and they have been isolated in remote natural vegetation. All known species and taxa in sub‐clade I, with the exception of P. humicola, have been isolated in WA, perhaps illuminating a WA origin for this clade. Studies are currently underway to formally describe the new species in conjunction with large scale pathogenicity trials of these and the other newly described species.

Item Type: Conference Item
Murdoch Affiliation: Centre for Phytophthora Science and Management
School of Biological Sciences and Biotechnology
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