Phytophthora cryptogea

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]

Phytophthora cryptogea
Scientific classification
Clade: SAR
Phylum: Oomycota
Order: Peronosporales
Family: Peronosporaceae
Genus: Phytophthora
Species:
P. cryptogea
Binomial name
Phytophthora cryptogea
Pethybr. & Laff., (1919)

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 (Jacobaea maritima), 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]

References
  1. Olson, H. A., et al. (2011). Phylogenetic history of Phytophthora cryptogea and P. drechsleri isolates from floriculture crops in North Carolina greenhouses. Phytopathology 101(11) 1373-84.
  2. Ampuero, J., et al. (2008). Identification of Phytophthora cryptogea as the cause of rapid decline of petunia (Petunia × hybrida) in Chile. Plant Disease 92(11) 1529-36.
  3. Buddin, W. (1938). Root rot, shoot rot and shanking of tulip caused by Phytophthora cryptogea Pethybr. & Laff. and P. erythro-septica Pethybr. Annals of Applied Biology 25(4) 705-29.
  4. Perlerou, C., et al. (2010). Phytophthora cryptogea causing ink disease of Castanea sativa newly reported in Greece. New Disease Reports 20 31.
  5. Mostowfizadeh-Ghalamfarsa, R., et al. (2010). Phylogenetic relationship of Phytophthora cryptogea Pethybr. & Laff and P. drechsleri Tucker. Fungal Biology 114(4) 325-39.
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