Phytophthora cryptogea

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Phytophthora cryptogea
Scientific classification
Domain: Eukaryota
Kingdom: Chromalveolata
Phylum: Heterokontophyta
Class: Oomycetes
Order: Peronosporales
Family: Pythiaceae
Genus: Phytophthora
Species: P. cryptogea
Binomial name
Phytophthora cryptogea
Pethybr. & Laff., (1919)

Phytophthora cryptogea is a species of water mould in the family Pythiaceae. It is a plant pathogen that infects several species of cultivated plants, including over 40 species of cultivated flowers.[1]

This species is reported to be pathogenic on grandiflora petunia (Petunia × atkinsiana).[2] It causes root rot, shoot rot and shanking in tulips.[3] It also infects blue daze (Evolvulus glomeratus), dusty miller (Senecio cineraria), Barberton daisy (Gerbera jamesonii), and garden verbena (Verbena × hybrida).[1] Like its relative Phytophtora cambivora, it can cause ink disease of chestnuts (Castanea sativa).[4]

This and Phytophthora drechsleri have been considered the same species, but phylogenetic analysis has revealed that they are two distinct species.[5]


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