Phytophthora andina

Name and publication

Phytophthora andina Adler & Flier (2010)

Oliva RF, Kroon LPMN, Chacón G, Flier WG, Ristaino JB, and Forbes GA. 2010. Phytophthora andina sp. nov., a newly identified heterothallic pathogen of solanaceous hosts in the Andean highlands. Plant Pathol. 59: 613–625 (pg. 622).

Corresponding author: Ricardo.Oliva@tsl.ac.uk

Phytophthora andina Adler & Flier (2010) Nom. Dub.

Cárdenas M, Tabima J, Fry WE, Grünwald NJ, Bernal A, and Restrepo S. 2012. Defining species boundaries in the genus Phytophthora: the case of Phytophthora andina. A response to ‘Phytophthora andina sp. nov., a newly identified heterothallic pathogen of solanaceous hosts in the Andean highlands’ (Oliva et al., 2010). Plant Pathology 61: 215–220.

Nomenclature

from Oliva et al. (2010)

Mycobank

MB514427

Synonymy

Phytophthora andina Gómez-Alpizar et al., Mycologia 100 (4): 590 (2008) [MB#529198]

Typification

Type: ECUADOR, Province of Tungurahua, City of Baños isolated from Solanum brevifolium along roadside, July 2001, N. A. Adler, CIP EC3189

Ex-type: culture of CIP EC3189 deposited to World Phytophthora Collection (haplotype Ic, mating type A2, genotype EC-2.1), CBS 115547

Note: Nomenclature in revision.

Ex-type in other collections

CBS 115547 = P13365 (WPC), CPHST BL 32 (Abad)

Molecular identification

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

Phytophthora andina isolate CPHST BL 32 (= P13365 ) ITS rDNA MK496515, COI MH136846

Sequences for ex-type in other sources
Position in ITS phylogenic tree

Clade 1c

Morphological identification

adapted from Oliva et al. (2010)

Colonies and cardinal temperatures

On rye agar and potato agar the species grows with a radial colony. Minimum growth temperature 5°C, maximum 30°C, and optimum 24°C. 

Asexual phase

Sporangia semipapillate; caducous with short pedicel; ellipsoid or semi-ovoid (39.5–62.5 µm length); produced in compound sympodial sporangiophores. Hyphal swellings and chlamydospores are absent.

Sexual phase

Heterothallic. Oogonia smooth-walled (34–41 µm width), frequently showing tapered base; antheridia amphigynousoospores plerotic (avg. 31 µm diam).

Most typical characters

Phytophthora andina is morphologically similar to Phytophthora mirabilis and Phytophthora infestans in the heterothallic mating system, the amphigynous antheridia, and the production of semipapillate sporangia produced on long sporangiophores

Additional specimen(s) evaluated

CPHST-BL 32, duplicate of P13365 (WPC)

Hosts and distribution

Distribution: South America (Ecuador, Peru)
Substrate: leaves, fruit
Disease note: blight
Host: Solanaceae

Retrieved February 01, 2018 from U.S. National Fungus Collections Nomenclature Database.

Additional references and links

Fact sheet author

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