Name and publication
Phytophthora boodjera Simamora & Burgess (2015)
Simamora AV, Stukely MJC, Hardy GE StJ , Burgess TI. 2015. Phytophthora boodjera sp. nov., a damping-off pathogen in production nurseries and from urban and natural landscapes, with an update on the status of P. alticola. IMA Fungus 6: 319–335 (pg. 326).
Corresponding author: tburgess@murdoch.edu.au
Nomenclature
from Simamora et al. (2015)
Mycobank
Etymology
from the Noongar (local Aboriginal) name for earth, ground, or sand plain
Typification
Type: AUSTRALIA. Western Australia: Tincurrin, from nursery soil dump, Mar. 2012, collected by the Vegetation Health Service of the Department of Parks and Wildlife (MURU 470)
Ex-type: cultures CBS 138637 = VHS 26806
Sequences for ex-type in original manuscript: VHS26806: ITS KJ372244, β-tubulin KJ372283, HSP90 KJ396710, enolase KJ396738 and coxI KJ396688
Ex-type in other collections
CBS 138637 = VHS 26806 = CPHST BL 178 (Abad)
Molecular identification
Voucher sequences for barcoding genes (ITS rDNA and COI) of the ex-type (see Molecular protocols page)
Phytophthora boodjera isolate VHS26806 ITS rDNA KJ372244
Phytophthora boodjera isolate CPHST BL 181 (= VHS26806) COI MH477743
Sequences for ex-type in other sources
- NCBI: Phytophthora boodjera CPHST BL 181
- NCBI: Phytophthora boodjera VHS 26806
- Phytophthora DATABASE: Phytophthora boodjera
- EPPO-Q-bank: Phytophthora boodjera
- BOLDSYSTEMS: Phytophthora boodjera (barcoding COI & ITS)
Position in ITS phylogenetic tree
Clade 4
Morphological identification
Colonies and cardinal temperatures
Colony morphology is appressed with no distinctive growth pattern and regular smooth margins on CA, V8A, MEA, and PDA. Minimum growth temperature 10°C, optimum 25–30°C, and maximum 35°C.
Conditions for growth and sporulation
Sporangia are produced in water cultures (soil extract or river water) and not observed in solid media. Oogonia are formed readily in single-strain culture on CA and V8A after about 14 d.
Asexual phase
Sporangia are papillate, persistent, and predominantly ovoid and limoniform. Sporangia average 34.7 ±1.16 x 27 ± 0.78 mm (overall range 15.2–62.3 mm x 14.6–42.5 mm). Sporangiophores in simple sympodia with no proliferation. Hyphal swellings are rare. Chlamydospores absent
Sexual phase
Homothallic. Oogonia are globose with wavy walls turning golden-brown on maturity, average size 29.4 ± 2.3 mm (24.6–33.4 mm) Oospores are aplerotic, globose with thick walls, average size 25.5 ± 1.9 µm (21.3–29.5). Antheridia are paragynous.
Most typical characters
Phytopthora boodjera forms a species complex with Phytophthora arenaria and Phytophthora alticola and is morphologically very similar to these species, but has a higher optimum and maximum for growth.
Specimen(s) evaluated
Australia; Western Australia: Tincurrin, from nursery soil dump, Mar. 2012, collected by Department of Parks and Wildlife, CBS 138637 = VHS 26806; Mt Claremont, Perth, WA, from roots of dying Agonis flexuosa, May 2011; PA. Barber, PAB 11.67, Dalkeith, Perth, WA, from roots of dying Eucalyptus marginata, May 2011; VHS 16282, Ravensthorpe, WA, from Banksia media, Aug. 2006; VHS 26631, Kensington, Perth, WA, from Eucalyptus sp., Feb. 2012; VHS 27016, VHS 27017, VHS 27018, VHS 27020, VHS 27021, VHS 27022, Tincurrin, WA, from Eucalyptus spp., Apr. 2012; VHS 27171, Tincurrin, WA, from roots of E. polybractea, Apr. 2012; VHS 27382, Stirling, Perth, WA, from Xanthorrhoea preissii, Nov. 2012; VHS 28352, Gingin, WA, from Banksia grandis, Nov. 2012; T. Paap, TP13.39, Northam, WA, from Corymbia calophylla, Sept. 2013.
Phytophthora boodjera CPHST BL 178 duplicate of VHS 26806 = CBS 138637 (ex-type)
Hosts and distribution
Distribution: Western Australia
Substrate: soil and root baits
Disease note: dieback, causes damping-off disease of young eucalypt seedlings
Hosts:
Agonis flexuosa,
Eucalyptus marginata,
Eucalyptus polybracta,
Eucalyptus kochii subsp. plenissima,
Eucalyptus kochii subsp. borealis,
Eucalyptus loxophleba subsp. lissophloia,
Eucalyptus loxophleba subsp.gratiae,
Xanthorrhoea preissii,
Corymbia calophylla
Retrieved January 29, 2018 from U.S. National Fungus Collections Nomenclature Database.
Additional references and links
- Phytophthora DATABASE: Phytophthora boodjera
- EPPO-Q-bank: Phytophthora boodjera
- SMML USDA-ARS: Phytophthora boodjera
- EPPO Global Database: Phytophthora boodjera
- CABI Invasive Species Compendium: Phytophthora boodjera
- Encyclopedia of Life (EOL): Phytophthora boodjera
- Index Fungorum (IF): Phytophthora boodjera
- Plantwise Knowledge Bank: Phytophthora boodjera
- Google All Phytophthora boodjera
- Google Images Phytophthora boodjera
- Google Scholar Phytophthora boodjera
Fact sheet authors
Treena Burgess, Ph.D., Centre for Phytophthora Science and Management, School of Biological Sciences and Biotechnology, Murdoch University, Australia; Z. Gloria Abad, Ph.D., USDA-APHIS-PPQ-S&T Beltsville Laboratory, United States of America