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Morphological Structure

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Phytophthora castaneae nbsp;ex-type CPHST BL 47G sexual phase: oogonia with warty protuberances and distinct funnel-shaped bases and amphigynous antheridia; photo by V. Brewster, USDA-APHIS-PPQ.

Phytophthora castaneae

Phytophthora castaneae ex-type CPHST BL 47G sexual phase: oogonia with warty protuberances and distinct funnel-shaped bases and amphigynous antheridia; photo by V. Brewster, USDA-APHIS-PPQ.

Phytophthora castaneae nbsp;ex-type CPHST BL 47G sexual phase: oogonia with warty protuberances and distinct funnel-shaped bases and amphigynous antheridia; photo by V. Brewster, USDA-APHIS-PPQ.

Phytophthora castaneae

Phytophthora castaneae ex-type CPHST BL 47G sexual phase: oogonia with warty protuberances and distinct funnel-shaped bases and amphigynous antheridia; photo by V. Brewster, USDA-APHIS-PPQ.

Phytophthora castaneae nbsp;ex-type CPHST BL 47G sexual phase: oogoniumnbsp;with warty protuberances and distinct funnel-shaped basenbsp;and amphigynous antheridium; photo by V. Brewster, USDA-APHIS-PPQ.

Phytophthora castaneae

Phytophthora castaneae ex-type CPHST BL 47G sexual phase: oogonium with warty protuberances and distinct funnel-shaped base and amphigynous antheridium; photo by V. Brewster, USDA-APHIS-PPQ.

Phytophthora castaneae

Phytophthora castaneae ex-type CPHST BL 47G sexual phase: oogonium with warty protuberances and distinct funnel-shaped base and amphigynous antheridium; photo by V. Brewster, USDA-APHIS-PPQ.

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. castanetorum Ex-type CBS 142299 = Samp;T BL 201 . Gloria Abad, USDA Samp;T.

Phytophthora castanetorum
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. castanetorum Ex-type CBS 142299 = S&T BL 201. Gloria Abad, USDA S&T.

Phytophthora spp. in Clade 12 : Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. castanetorum Ex-type CBS 142299 = Samp;T BL 201 . Gloria Abad, USDA Samp;T.

Phytophthora castanetorum
Phytophthora spp. in Clade 12: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. castanetorum Ex-type CBS 142299 = S&T BL 201. Gloria Abad, USDA S&T.

Phytophthora spp. in Clade 4: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. cathayensis Ex-type CGMCC No.19655 . Gloria Abad, USDA Samp;T.

Phytophthora cathayensis
Phytophthora spp. in Clade 4: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. cathayensis Ex-type CGMCC No.19655. Gloria Abad, USDA S&T.

Phytophthora spp. in Clade 4 : Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. cathayensis Ex-type CGMCC No.19655 . Gloria Abad, USDA Samp;T. nbsp;

Phytophthora cathayensis
Phytophthora spp. in Clade 4: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. cathayensis Ex-type CGMCC No.19655. Gloria Abad, USDA S&T.

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. celebensis Ex-type CBS 148800 . Gloria Abad, USDA Samp;T.

Phytophthora celebensis
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. celebensis Ex-type CBS 148800. Gloria Abad, USDA S&T.

Phytophthora spp. in subclade 10a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. celebensis Ex-type CBS 148800 . Gloria Abad, USDA Samp;T.

Phytophthora celebensis
Phytophthora spp. in subclade 10a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. celebensis Ex-type CBS 148800. Gloria Abad, USDA S&T.

Phytophthora spp. in subclade 6a: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. chesapeakensis Ex-type CBS140655 = Samp;T BL 209 . Gloria Abad, USDA Samp;T.

Phytophthora chesapeakensis (2019)
Phytophthora spp. in subclade 6a: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. chesapeakensis Ex-type CBS140655 = S&T BL 209. Gloria Abad, USDA S&T.

Phytophthora spp. in subclade 6a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. chesapeakensis Ex-type CBS140655 = Samp;T BL 209 . Gloria Abad, USDA Samp;T.

Phytophthora chesapeakensis (2019)
Phytophthora spp. in subclade 6a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. chesapeakensis Ex-type CBS140655 = S&T BL 209. Gloria Abad, USDA S&T.

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. chilensis Ex-type CBS 148797 . Gloria Abad, USDA Samp;T.

Phytophthora chilensis
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. chilensis Ex-type CBS 148797. Gloria Abad, USDA S&T.

Phytophthora spp. in subclade 10a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. chilensis Ex-type CBS 148797 . Gloria Abad, USDA Samp;T.

Phytophthora chilensis
Phytophthora spp. in subclade 10a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. chilensis Ex-type CBS 148797. Gloria Abad, USDA S&T.

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. chlamydospora Ex-type CBS 149403 = Samp;T BL 156 . Gloria Abad, USDA Samp;T.

Phytophthora chlamydospora
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. chlamydospora Ex-type CBS 149403 = S&T BL 156. Gloria Abad, USDA S&T.

Phytophthora spp. in subclade 6b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. chlamydospora Ex-type CBS 149403 = Samp;T BL 156 . Gloria Abad, USDA Samp;T.

Phytophthora chlamydospora
Phytophthora spp. in subclade 6b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. chlamydospora Ex-type CBS 149403 = S&T BL 156. Gloria Abad, USDA S&T.

Phytophthora chlamydospora (CPHST BL 156) colonies of the ex-type grown for 7 days on (a) V8reg; Agar, (b) potato dextrose agar, and (c) malt extract agar; photo by Krysta Jennings and Leandra Knight, USDA-APHIS-PPQ.

Phytophthora chlamydospora

Phytophthora chlamydospora (CPHST BL 156) 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 chlamydospora asexual phase: (a) cultures of the ex-type isolate P236 on V8 agar (left) and carrot agar (right), (b) hyphal swellings, (c) chlamydospore, (d) persistent nonpapillate sporangium, (e) sporangia in water, showing subsporangial elongation; Scale bar = 20mu;m; photos by Paul Reeser.

Phytophthora chlamydospora

Phytophthora chlamydospora asexual phase: (a) cultures of the ex-type isolate P236 on V8 agar (left) and carrot agar (right), (b) hyphal swellings, (c) chlamydospore, (d) persistent nonpapillate sporangium, (e) sporangia in water, showing subsporangial elongation; Scale bar = 20μm; photos by Paul Reeser.

Phytophthora chlamydospora cultures of the ex-type isolate P236: V8 agar (left) and carrot agar (right); Scale bar = 20mu;m; photos by Paul Reeser.

Phytophthora chlamydospora

Phytophthora chlamydospora cultures of the ex-type isolate P236: V8 agar (left) and carrot agar (right); Scale bar = 20μm; photos by Paul Reeser.

Phytophthoranbsp;chlamydosporanbsp; asexual phase: hyphal swellings; Scale bar = 20mu;m; photonbsp;by Paul Reeser.

Phytophthora chlamydospora

Phytophthora chlamydospora asexual phase: hyphal swellings; Scale bar = 20μm; photo by Paul Reeser.

Phytophthoranbsp;chlamydosporanbsp; asexual phase: persistent nonpapillate sporangium; Scale bar = 20mu;m; photos by Paul Reeser.

Phytophthora chlamydospora

Phytophthora chlamydospora asexual phase: persistent nonpapillate sporangium; Scale bar = 20μm; photos by Paul Reeser.

Phytophthoranbsp;chlamydosporanbsp; asexual phase:nbsp;sporangia in water, showing subsporangial elongation; Scale bar = 20mu;m; photos by Paul Reeser.

Phytophthora chlamydospora

Phytophthora chlamydospora asexual phase: sporangia in water, showing subsporangial elongation; Scale bar = 20μm; photos by Paul Reeser.

Phytophthoranbsp;chlamydosporanbsp; asexual phase:chlamydospore; Scale bar = 20mu;m; photos by Paul Reeser.

Phytophthora chlamydospora

Phytophthora chlamydospora asexual phase:chlamydospore; Scale bar = 20μm; photos by Paul Reeser.

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. chrysanthemi Ex-type CBS 123163 = Samp;T BL 94 . Gloria Abad, USDA Samp;T.

Phytophthora chrysanthemi
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. chrysanthemi Ex-type CBS 123163 = S&T BL 94. Gloria Abad, USDA S&T.

Phytophthora spp. in subclade 9a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. chrysanthemi Ex-type CBS 123163 = Samp;T BL 94. Gloria Abad, USDA Samp;T.

Phytophthora chrysanthemi
Phytophthora spp. in subclade 9a: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. chrysanthemi Ex-type CBS 123163 = S&T BL 94. Gloria Abad, USDA S&T.

Phytophthora chrysanthemi (CPHST BL 94) colonies of the ex-type grown for 7 days on (a) V8reg; Agar, (b) potato dextrose agar, and (c) malt extract agar; photo by Krysta Jennings and Leandra Knight, USDA-APHIS-PPQ

Phytophthora chrysanthemi

Phytophthora chrysanthemi (CPHST BL 94) 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 chrysanthemi causing root rot of chrysanthemun; slide provided by Koji Kageyama and Meherun Naher, Gifu University, Japan

Phytophthora chrysanthemi

Phytophthora chrysanthemi causing root rot of chrysanthemun; slide provided by Koji Kageyama and Meherun Naher, Gifu University, Japan

Phytophthora chrysantheminbsp; (ex-type nbsp; GF749 -nbsp;Kageyama) asexual phase sporangia, sporangiophore, and internal proliferation; slide provided by Koji Kageyama and Meherun Naher,nbsp;Gifu University, Japan

Phytophthora chrysanthemi
Phytophthora chrysanthemi (ex-type GF749 - Kageyama) asexual phase sporangia, sporangiophore, and internal proliferation; slide provided by Koji Kageyama and Meherun Naher, Gifu University, Japan

Phytophthora chrysanthemi (ex-type nbsp; GF749 - Kageyama) asexual phase, hyphal swellings, and chlamydospores; slide provided by Koji Kageyama and Meherun Naher,nbsp;Gifu University, Japan

Phytophthora chrysanthemi

Phytophthora chrysanthemi (ex-type GF749 - Kageyama) asexual phase, hyphal swellings, and chlamydospores; slide provided by Koji Kageyama and Meherun Naher, Gifu University, Japan

Phytophthora chrysantheminbsp; (ex-type nbsp; GF749 -nbsp;Kageyama) sexual phase; slide provided by Koji Kageyama and Meherun Naher,nbsp;Gifu University, Japan

Phytophthora chrysanthemi

Phytophthora chrysanthemi (ex-type GF749 - Kageyama) sexual phase; slide provided by Koji Kageyama and Meherun Naher, Gifu University, Japan

Phytophthora spp. in subclade 8b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. cichorii Ex-type CBS 115029 = Samp;T BL 95 . Gloria Abad, USDA Samp;T.

Phytophthora cichorii
Phytophthora spp. in subclade 8b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. cichorii Ex-type CBS 115029 = S&T BL 95. Gloria Abad, USDA S&T.

Phytophthora spp. in subclade 8b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. cichorii Ex-type CBS 115029 = Samp;T BL 95 . Gloria Abad, USDA Samp;T.

Phytophthora cichorii
Phytophthora spp. in subclade 8b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. cichorii Ex-type CBS 115029 = S&T BL 95. Gloria Abad, USDA S&T.