Pittosporum undulatum is a potential Australian host of Phytophthora ramorum

D. Hüberli; C. Wilkinson; M. A. Smith; M. Meshriy; T. Y. Harnik; M. Garbelotto

doi:10.1071/DN06009

RESEARCH ARTICLE

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Pittosporum undulatum is a potential Australian host of Phytophthora ramorum

D. Hüberli ^A ^B ^C , C. Wilkinson ^A , M. A. Smith ^A , M. Meshriy ^A , T. Y. Harnik ^A and M. Garbelotto ^A

+ Author Affiliations

- Author Affiliations

^A Department of ESPM-ES, University of California, 137 Mulford Hall, Berkeley, CA 94720, USA.

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

^C Corresponding author. Email: d.huberli@murdoch.edu.au

Australasian Plant Disease Notes 1(1) 19-21 https://doi.org/10.1071/DN06009
Accepted: 16 September 2006 Published: 27 September 2006

Abstract

Pittosporum undulatum is a potential Australian host of Phytophthora ramorum, the causal agent of sudden oak death in California. It was susceptible and supported sporulation in zoospore inoculations of detached leaves. Susceptibility and sporulation potential were low when compared to Umbellularia californica. Two independent positives were obtained from symptomatic trees in a PCR-based assay using species-specific primers. Foliar symptoms observed on the trees were replicated in the detached leaf inoculations.

Additional keywords: horticulture, oomycete, nursery, sporulation, sudden oak death.

Acknowledgements

The project was funded by the Pacific South-West Research Station USDA Forest Service and the Betty and Gordon Moore Foundation.

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