Phytophthora balyanboodja

Name and publication

Phytophthora balyanboodja Burgess (2018)

Burgess TI, Simamora AV, White D, Wiliams B, Schwager M, Stukely MJC, Hardy GE StJ. 2018. New species from Phytophthora Clade 6a: evidence for recent radiation. Persoonia 41: 1–17.

Corresponding author:


from Burgess et al. (2018)




named for wetlands in Noongar (local Aboriginal) language


Type: AUSTRALIA, Western Australia, Alfred Cove, from rhizosphere soil of mixed native vegetation, isolated by the VHS, 2015 (holotype MURU 475, dried culture on V8A, Herbarium of Murdoch University, Western Australia)

Ex-type: CBS 143058

Sequences for ex-type in original manuscript:  ITS KJ372258 (Phytophthora taxon cyperaceae strain VHS25675 R1C)

Phytophthora balyanboodja strain VHS25675 R1: TUB MF326806, HSP MF326892, COX MF326862 and NADH MF326927

Ex-type in other collections

CBS 143058 = VHS 25675 = R1C, CPHST BL 186 (Abad)

Molecular identification

Voucher sequences for barcoding genes (ITS rDNA and COI) of the ex-type (see Molecular protocols page)

Phytophthora balyanboodja isolate VHS25675 R1C ITS rDNA KJ372258

Phytophthora balyanboodja isolate CPHST BL186 COI MH477741

Sequences for ex-type in other sources
  • NCBI: Phytophthora balyanboodja CPHST BL 186
  • NCBI: Phytophthora balyanboodja VHS 25675R1
  • Phytophthora DATABASE: Phytophthora balyanboodja
  • EPPO-Q-bank: Phytophthora balyanboodja
  • BOLDSYSTEMS: Phytophthora balyanboodja (barcoding COI & ITS)
Position in ITS phylogenetic tree

Clade 6a

Morphological identification

Colonies and cardinal temperatures

Colony morphology on V8, PDA, MEA, and CA are woolly and uniform. Growth is fast on all media. Minimum growth temperature 4°C, optimum 32.5°C, maximum greater than 37.5°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 not observed in single culture or when paired with tester strains.

Asexual phase

Sporangia are nonpapillate, persistent, exclusively ovoid to elongated ovoid with average dimensions of 63.3 ± 8.3 x 39.7 ± 5.8 µm (overall range 40.9–75.7 x 21.2–51.1 µm). Sporangiophores are simple, and internal proliferation both nested and extended occurred in chains. Hyphal swellings absent. Chlamydospores absent.

Sexual phase

Sterile in culture.

Most typical characters

The most typical features for Phytophthora balyanboodja are its uniform sporangia proliferating in chains, as well as its fast growth rate and high temperature optima.

Specimen(s) evaluated

Australia, Western Australia, Alfred Cove, from rhizosphere soil of mixed native vegetation, isolated by the VHS, 2015, culture ex-type CBS 143058 = VHS23675-R1; VHS23675-R3

Hosts and distribution

Not found in U.S. National Fungus Collections Nomenclature Database as of June 20, 2018.

Additional references and links

  • Phytophthora DATABASE: Phytophthora balyanboodja
  • EPPO-Q-bank: Phytophthora balyanboodja
  • SMML USDA-ARS: Phytophthora balyanboodja
  • EPPO Global Database: Phytophthora balyanboodja
  • CABI Invasive Species Compendium: Phytophthora balyanboodja
  • Encyclopedia of Life (EOL): Phytophthora balyanboodja
  • Index Fungorum (IF): Phytophthora balyanboodja
  • Plantwise Knowledge Bank: Phytophthora balyanboodja

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