Phytophthora podocarpi sp. nov. from Diseased Needles and Shoots of Podocarpus in New Zealand

Kiryn Dobbie; Peter Scott; Pam Taylor; Preeti Panda; Diya Sen; Margaret Dick; Rebecca McDougal

doi:10.3390/f13020214

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Phytophthora podocarpi sp. nov. from Diseased Needles and Shoots of Podocarpus in New Zealand

Journal article

Open access

Peer reviewed

Phytophthora podocarpi sp. nov. from Diseased Needles and Shoots of Podocarpus in New Zealand

Kiryn Dobbie, Peter Scott, Pam Taylor, Preeti Panda, Diya Sen, Margaret Dick and Rebecca McDougal

Forests, Vol.13(2), 214

2022

DOI: https://doi.org/10.3390/f13020214

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Abstract

Forestry

Life Sciences & Biomedicine

Science & Technology

Foliage samples from Podocarpus totara with severe needle browning and needle loss in the lower part of the crown were observed in 2011 in the Gisborne region of New Zealand. A Phytophthora genus-specific test applied directly to the needles gave a strong positive result, and subsequent isolations yielded colonies of a slow-growing oomycete. Morphological examination in vitro revealed a Phytophthora species. Preliminary comparisons of the rDNA (ITS), and ras-related protein (Ypt) gene regions with international DNA sequence revealed low sequence similarity to species from the downy mildew genus Peronospora, as well as clade 3 Phytophthora species. Other studies have also demonstrated the close relationship with Peronospora. The species was given the interim designation Phytophthora taxon ttara pending further examination. Here, we formally describe Phytophthora podocarpi sp. Nov. and its associated disease, ttara needle blight.

Details

Title: Phytophthora podocarpi sp. nov. from Diseased Needles and Shoots of Podocarpus in New Zealand
Authors/Creators: Kiryn Dobbie - Scion
Peter Scott - Department of Primary Industries and Regional Development
Pam Taylor - Scion
Preeti Panda - Plant & Food Research
Diya Sen - Scion
Margaret Dick - Scion
Rebecca McDougal - Scion
Publication Details: Forests, Vol.13(2), 214
Publisher: MDPI
Number of pages: 13
Grant note: New Zealand Forest Biosecurity Surveillance Programme C04X1703 / New Zealand Ministry of Business, Innovation and Employment; New Zealand Ministry of Business, Innovation and Employment (MBIE) High-Risk Site Surveillance Program (Ministry for Primary Industries) Forest Growers levy Trust
Identifiers: 991005580033107891
Murdoch Affiliation: Centre for Terrestrial Ecosystem Science and Sustainability
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.97 Plant Pathology; 3.97.1439 Phytophthora Management
Web Of Science research areas: Forestry
ESI research areas: Plant & Animal Science