Phytophthora uniformis (in progress - Abad et al. 2023b)

Phytophthora alni subsp. uniformis (CPHST BL 3) sexual phase of a selected specimen: smooth-walled oogonium with slightly wavy-edge and amphigynous antheridium; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora uniformis (in progress - Abad et al. 2023b)

Phytophthora alni subsp. uniformis (CPHST BL 3) sexual phase of a selected specimen: oospores with smooth-walled oogonia with slightly wavy-edges and amphigynous antheridia; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora uniformis (in progress - Abad et al. 2023b)

Phytophthora alni subsp. uniformis (CPHST BL 3) sexual phase of a selected specimen: smooth-walled oogonia with slightly wavy-edges and amphigynous antheridia; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora uniformis (in progress - Abad et al. 2023b)

Phytophthora alni subsp. uniformis (CPHST BL 3) sexual phase of a selected specimen: smooth-walled oogonium with a slightly wavy-edge and amphigynous antheridium; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora urerae
Phytophthora spp. in subclade 1c: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. urerae Ex-type CBS 148929 = S&T BL 203. Gloria Abad, USDA S&T.

Phytophthora urerae
Phytophthora spp. in subclade 1c: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. urerae Ex-type CBS 148929 = S&T BL 203. Gloria Abad, USDA S&T.

Phytophthora variabilis
Phytophthora spp. in subclade 7b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. variabilis Ex-type CBS 147923. Gloria Abad, USDA S&T.

Phytophthora variabilis
Phytophthora spp. in subclade 7b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. variabilis Ex-type CBS 147923. Gloria Abad, USDA S&T.

Phytophthora versiformis
Phytophthora spp. in Clade 12: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. versiformis Ex-type CBS 142005 = S&T BL 189. Gloria Abad, USDA S&T.

Phytophthora versiformis
Phytophthora spp. in Clade 12: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. versiformis Ex-type CBS 142005 = S&T BL 189. Gloria Abad, USDA S&T.

Phytophthora versiformis

colony morphology after 7 days growth at 20°C on different media: V8A, CA, MEA, and half strength PDA (left to right)

Phytophthora versiformis

papillate sporangia with a variety of shapes; ovoid (a, b, f), broad ovoid (f), obpyriform (d, e), and distorted shapes (c); displaces and curved apices common; scale bar = 20 µm

Phytophthora versiformis

oogonia of Phytophthora versiformis with one (a–c, f) or more (g, h) paragynous antheridia; oospores develop thick oospore walls and turn golden at maturity (h, i); many aborted oospores observed (d, e); scale bar = 20 µm

Phytophthora vignae (in progress - Abad et al. 2023b)
Phytophthora spp. in subclade 7b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. vignae selected specimen WPC P3019 = S&T BL 30. Gloria Abad, USDA S&T.

Phytophthora vignae (in progress - Abad et al. 2023b)
Phytophthora spp. in subclade 7b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. vignae selected specimen WPC P3019 = S&T BL 30. Gloria Abad, USDA S&T.

Phytophthora virginiana
Phytophthora spp. in subclade 9a: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. virginiana Ex-type MYA-4927 = S&T BL 165. Gloria Abad, USDA S&T.

Phytophthora virginiana
Phytophthora spp. in subclade 9a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. virginiana Ex-type MYA-4927 = S&T BL 165. Gloria Abad, USDA S&T.

Phytophthora virginiana

Phytophthora virginiana (CPHST BL 165) colonies of the ex-type grown for 7 days on (a) V8® Agar, (b) potato dextrose agar, and (c) malt extract agar; photo by Krysta Jennings and Leandra Knight, USDA-APHIS-PPQ

Phytophthora vulcanica
Phytophthora spp. in subclade 7a: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. vulcanica Ex-type CBS 141216 = S&T BL 223. Gloria Abad, USDA S&T.

Phytophthora vulcanica
Phytophthora spp. in subclade 7a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. vulcanica Ex-type CBS 141216 = S&T BL 223. Gloria Abad, USDA S&T.

Phytophthora vulcanica

Phytophthora vulcanica in Italy, morphology of the homothallic species; slide provided by Santa Olga Cacciola, University of Catania, Italy from presentation on “Phytophthora diversity in cultivated and natural environments in Europe” at the ICPP 2018 - 6th International Oomycetes/Phytophthora Workshop