Phytophthora fragariaefolia Rahman, Uematsu, Takeuchi, Shirai & Kageyama (2014)

Rahman MZ, Uematsu S, Takeuchi T, Shirai K, Ishiguro Y, Suga H, and Kageyama K. 2014. Two new species, Phytophthora nagaii sp. nov. and P. fragariaefolia sp. nov., causing serious diseases on rose and strawberry plants, respectively, in Japan. J. Gen. Plant Pathol. 80: 348–365.

Corresponding author: rahman@green.gifu-u.ac.jp

from Rahman et al. (2014)

Mycobank

MB804990

Etymology

refers to generic name of the host plant, strawberry (Fragaria ananassa)

Typification

Type: JAPAN, Hokkaido Prefecture, from crown of strawberry (Fragaria ananassa), 2005, collector T. Takeuchi; isolate NBRC H-13133-holotypus (freeze-dried specimen)

Ex-type: NBRC 109709 = CBS 135747 (= CH05NSU11, MAFF 244058)

Sequences for ex-type in original manuscript

CH05NSU11 = ITS rDNA AB819580, LSU AB819581, EF1-α AB819578, β-tubulin AB819579, and coxI AB819582

Ex-type in other collections

NBRC 109709 = CBS 135747 = P19990 (WOC/WPC), CPHST BL 141 (Abad), 61H4 (Yang)

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

Phytophthora fragariaefolia isolate CPHST BL 141 (= P19990 WPC) = ITS rDNA MG865495, COI MH136891

Sequences for ex-type in other sources

• NCBI: Phytophthora fragariaefolia CPHST BL 141
• NCBI: Phytophthora fragariaefolia CH05NSU11
• Phytophthora Database: Phytophthora fragariaefolia
• EPPO-Q-bank: Phytophthora fragariaefolia
• BOLDSYSTEMS: Phytophthora fragariaefolia (barcoding COI & ITS)

Position in ITS phylogenetic tree

Clade 7c

adapted from Rahman et al. (2014)

Colonies and cardinal temperatures

Colony morphology after 7 days on PDA, V-8, MEA, and HSA with no distinct pattern. Minimum growth temperature 5°C, optimum 28°C, and maximum 33°C.

Conditions for growth and sporulation

Sporangia formed in grass leaf blade water culture. Oogonia and oospore abundantly produced in single culture.

Asexual phase

Sporangia nonpapillate; persistent; ellipsoid, spherical, distorted (28–59 L × 14–43 W μm); with internal (nested or extended) and external proliferation; grown in unbranched and simple sympodial sporangiophores. Hyphal swellings globose and subglobose, terminal and intercalary. Chlamydospores globose intercalary (32 μm diam).

Sexual phase

Homothallic. Oogonia smooth, spherical (26–44 μm diam), sometimes funnel-shaped with tapering base; antheridia predominantly paragynous; spherical, globose, ellipsoid (13–27 L ×12–19 W μm); oospore aplerotic (22–35 μm diam).

Additional specimen(s) evaluated

Phytophthora fragariaefolia ex-type CPHST BL 141, duplicate of P19990 (World Phytophthora Collection)

Distribution: Asia (Japan), Europe (Poland)
Substrate: crowns, soil
Disease note: crown rot
Host: Fragaria x ananassa (Rosaceae), Fraxinus excelsior (Oleaceae)

Retrieved January 30, 2018 from U.S. National Fungus Collections Nomenclature Database.

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

• Google All Phytophthora fragariaefolia
• Google Images Phytophthora fragariaefolia
• Google Scholar Phytophthora fragariaefolia

Fact sheet author:

Z. Gloria Abad, Ph.D., USDA-APHIS-PPQ-S&T Beltsville Laboratory, United States of America