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Morphological Structure

Clades


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Phytophthora gloveri

Phytophthora glovera (CPHST BL 36) sexual phase of the ex-type: smooth oogonium with aplerotic oospore and amphigynous antheridium; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora gloveri
Phytophthora spp. in subclade 2b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. gloveri Ex-type CBS 121969= S&T BL 36. Gloria Abad, USDA S&T.
Phytophthora gloveri
Phytophthora spp. in subclade 2b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. gloveri Ex-type CBS 121969= S&T BL 36. Gloria Abad, USDA S&T.
Phytophthora gonapodyides (in progress - Abad et al. 2023b)
Phytophthora spp. in subclade 6b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. gonapodyides selected specimen CBS 554.67 = S&T BL 214. Gloria Abad, USDA S&T.

Phytophthora gonapodyides (in progress - Abad et al. 2023b)
Phytophthora spp. in subclade 6b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. gonapodyides selected specimen CBS 554.67 = S&T BL 214. Gloria Abad, USDA S&T.  
Phytophthora gonapodyides (in progress - Abad et al. 2023b)

Phytophthora gonapoidyides (CPHST BL 172) colonies of a selected specimen 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 gonapodyides (in progress - Abad et al. 2023b)

Phytophthora gonapodyides (CPHST BL 172, selected specimen) asexual phase: (a–c) nonpapillated sporangia produced in unbranched sporangiophores; (d) radiating hyphae; photos by Gloria Abad, USDA-APHIS-PPQ.

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

Phytophthora gonapodyides (CPHST BL 172, selected specimen) asexual phase: nonpapillated sporangium produced in unbranched sporangiophore; photo by Gloria Abad, USDA-APHIS-PPQ.


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

Phytophthora gonapodyides (CPHST BL 172, selected specimen) asexual phase: nonpapillated sporangium produced in unbranched sporangiophore; photo by Gloria Abad, USDA-APHIS-PPQ.

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

Phytophthora gonapodyides (CPHST BL 172, selected specimen) asexual phase: nonpapillated sporangium produced in unbranched sporangiophore; photo by Gloria Abad, USDA-APHIS-PPQ.

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

Phytophthora gonapodyides (CPHST BL 172, selected specimen) asexual phase: radiating hyphae; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora gondwanensis

Phytophthora gondwanensis (ex-type CBS 139336) colony morphology, asexual and sexual phases: (a) sporangia papillated, with short pedicel (red arrow); (b) smooth-walled oogonium with amphigynous antheridium and plerotic oospore; (c) colony morphology in 10% V8 agar; photos by Lucas A. Shuttleworth, University of Sidney, Australia.


Phytophthora gondwanensis

Phytophthora gondwanensis (ex-type CBS 139336) asexual phase: sporangia papillated, with short pedicel; photo by Lucas A. Shuttleworth, University of Sidney, Australia.

Phytophthora gondwanensis

Phytophthora gondwanensis (ex-type CBS 139336) sexual phase: smooth-walled oogonium with amphigynous antheridium and plerotic oospore; photo by Lucas A. Shuttleworth, University of Sidney, Australia.

Phytophthora gondwanensis

Phytophthora gondwanensis (ex-type CBS 139336) colony morphology in 10% V8 agar; photo by Lucas A. Shuttleworth, University of Sidney, Australia.

Phytophthora gondwanensis
Phytophthora spp. in subclade 10a: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. gondwanensis Ex-type CBS 139336. Gloria Abad, USDA S&T.

Phytophthora gondwanensis
Phytophthora spp. in subclade 10a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. gondwanensis Ex-type CBS 139336. Gloria Abad, USDA S&T.
Phytophthora gregata
Phytophthora spp. in subclade 6b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. gregata Ex-type CBS 127952 = S&T BL 37. Gloria Abad, USDA S&T.
Phytophthora gregata
Phytophthora spp. in subclade 6b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. gregata Ex-type CBS 127952 = S&T BL 37. Gloria Abad, USDA S&T.
Phytophthora gregata

Phytophthora gregata colonies of the ex-type grown for 7 days at 20°C on: (a) V8® agar, (b) carrot agar, (c) malt extract agar, (d) potato-dextrose agar; photo by T. Burgess, Centre for Phytophthora Science and Management, Murdoch University, Australia


Phytophthora gregata

Phytophthora gregata, mature nonpapillate sporangia formed on V8 agar flooded with soil extract (a) obpyriform, (b) limoniform, (c) ovoid empty sporangium with internal nested proliferation, (d) elongated with internal extended proliferation and a multitude of wall ingrowths; scale bar = 25 µm

Phytophthora gregata

Phytophthora gregata, mature oogonia containing a thick-walled oospore with a large ooplast (a), nearly plerotic oospore and amphigynous antheridium (b), excentric with tapering base, aplerotic oospore and paragynous antheridium (c), (d) mature oogonia with thick-walled aborted (left) and viable oospore (right), (e) golden-brown aborted oogonium; scale bar = 25 μm

Phytophthora gregata

Phytophthora gregata, hyphal aggregations; scale bar = 25 μm

Phytophthora hedraiandra

Phytophthora hedraiandra (CPHST BL 4) 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 hedraiandra

Phytophthora hedriandra (CPHST BL 4) asexual phase of the ex-type: (a) sporangia and oospores, (b) sporangium papillate with caducous short pedicel; photos by Gloria Abad USDA-APHIS-PPQ.

Phytophthora hedraiandra

Phytophthora hedriandra (CPHST BL 4) sexual phase of the ex-type: (a–e) smooth oogonia with paragynous antheridia and aplerotic, some plerotic (d) oospores; photos by Gloria Abad, USDA-APHIS-PPQ

Phytophthora hedraiandra

Phytophthora hedriandra (CPHST BL 4) sexual phase of the ex-type: smooth oogonia with paragynous antheridia and aplerotic, some plerotic oospores; photos by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora hedraiandra

Phytophthora hedriandra (CPHST BL 4) sexual phase of the ex-type: smooth oogonia with paragynous antheridia and aplerotic, some plerotic oospores; photos by Gloria Abad, USDA-APHIS-PPQ.


Phytophthora hedraiandra

Phytophthora hedriandra (CPHST BL 4) sexual phase of the ex-type: smooth oogonium with paragynous antheridium and plerotic oospore; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora hedraiandra

Phytophthora hedriandra (CPHST BL 4) sexual phase of the ex-type: smooth oogonium with paragynous antheridium and aplerotic oospore; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora hedraiandra

Phytophthora hedriandra (CPHST BL 4) sexual phase of the ex-type: smooth oogonium with paragynous antheridium and aplerotic oospore; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora hedraiandra

Phytophthora hedriandra (CPHST BL 4) asexual phase of the ex-type: sporangia and oospores; photo by Gloria Abad USDA-APHIS-PPQ.