Peronospora violae de Bary
(Pansy Downy Mildew)

Interactions where Peronospora violae is the dominant partner and gains from the process

The following relationships have been collated from the published literature (see 'Interaction References').

Stage		Summary			Taxon	Vernacular	Classification	References	Darwin Classification of Active Taxon	Active Taxon	Active Vernacular	Active Taxon Uncertain	Active State	Active Part	Active Stage	Relationship	Relationship Uncertain	Relationship Geography	Darwin Classification of Passive Taxon	Passive Taxon	Passive Vernacular	Passive Taxon Uncertain	Passive State	Passive Part	Passive Stage	Passive Taxon's significance to Active Taxon	Indoors etc	Season
		causes gall of stem			Viola	violets, pansies	Malpighiales: Violaceae	Provisional Keys to British Plant Galls, Stubbs, F.B. (Editor), 1986	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew					Foodplant / gall			/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola/	Viola	violets, pansies			stem
		causes gall of leaf			Viola	violets, pansies	Malpighiales: Violaceae	Provisional Keys to British Plant Galls, Stubbs, F.B. (Editor), 1986	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew					Foodplant / gall			/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola/	Viola	violets, pansies			leaf
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola	violets, pansies	Malpighiales: Violaceae	Peronospora violae, Hall, G., 1980 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola/	Viola	violets, pansies		live	leaf		Sole		(10)11-)
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola arvensis	Field Pansy	Malpighiales: Violaceae	Microfungi on Land Plants: An Identification Handbook, Ellis, M.B. & J.P., 1997 Peronospora violae, Hall, G., 1980 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola arvensis/	Viola arvensis	field pansy		live	leaf				(10)11-)
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola canina ssp canina	Heath Dog-violet	Malpighiales: Violaceae	Peronospora violae, Hall, G., 1980 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola canina subsp. canina/	Viola canina subsp. canina	heath dog-violet		live	leaf				(10)11-)
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola cornuta	Horned Pansy	Malpighiales: Violaceae	Peronospora violae, Hall, G., 1980	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite			/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola cornuta/	Viola cornuta	horned pansy		live	leaf				(10)11-)
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola kitaibeliana	Dwarf Pansy	Malpighiales: Violaceae	Peronospora violae, Hall, G., 1980	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite			/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola kitaibeliana/	Viola kitaibeliana	dwarf pansy		live	leaf				(10)11-)
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola palustris	Marsh Violet	Malpighiales: Violaceae	Peronospora violae, Hall, G., 1980 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola palustris/	Viola palustris	marsh violet		live	leaf				(10)11-)
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola reichenbachiana	Early Dog-violet	Malpighiales: Violaceae	Peronospora violae, Hall, G., 1980 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola reichenbachiana/	Viola reichenbachiana	early dog-violet		live	leaf				(10)11-)
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola riviniana	Common Dog-violet, Blunt-spurred Violet	Malpighiales: Violaceae	Peronospora violae, Hall, G., 1980 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola riviniana/	Viola riviniana	common dog-violet, blunt-spurred violet		live	leaf				(10)11-)
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola tricolor	Wild Pansy	Malpighiales: Violaceae	Peronospora violae, Hall, G., 1980 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola tricolor/	Viola tricolor	wild pansy		live	leaf				(10)11-)
sporangium (hypophyllous)		hypophyllous sporangium parasitises live leaf			Viola x wittrockiana (V. altaica x lutea x tricolor)	garden pansy	Malpighiales: Violaceae	Pests, Diseases & Disorders of Garden Plants, Buczacki, S. & Harris, K., 1998 Peronospora violae, Hall, G., 1980 A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles, Preece, T.F., 2002	/Chromista/Oomycota/Peronosporea/Peronosporales/Peronosporaceae/Peronospora violae/	Peronospora violae	pansy downy mildew		hypophyllous		sporangium	Foodplant / parasite		UK and/or Eire	/Plantae/Tracheophyta/Magnoliopsida/Malpighiales/Violaceae/Viola x wittrockiana (V. altaica x lutea x tricolor)/	Viola x wittrockiana (V. altaica x lutea x tricolor)	garden pansy		live	leaf				(10)11-)

Author & Year	Title	Source
Buczacki, S. & Harris, K., 1998	Pests, Diseases & Disorders of Garden Plants	Collins Photoguide, 2nd edition edition, Collins
Ellis, M.B. & J.P., 1997	Microfungi on Land Plants: An Identification Handbook	2nd (New Enlarged) edition, 868pp, The Richmond Publishing Co. Ltd
Hall, G., 1980	Peronospora violae	I.M.I. Descriptions of Pathogenic Fungi and Bacteria CMI Descriptions of Pathenogenic Fungi and Bacteria Sheet 977.
Preece, T.F., 2002	A Checklist of the Downy Mildews (Peronosporaceae) of the British Isles	33pp, British Mycological Society
Stubbs, F.B. (Editor), 1986	Provisional Keys to British Plant Galls	95pp, British Plant Gall Society (BPGS)

Peronospora violae (Pansy Downy Mildew) may be included in 'fed on by' relations listed under the following higher taxa:

CHROMISTA
(algae)

Fungi s.l.
(fungi (in the broad sense))

Taxonomic hierarchy:

Species	Peronospora violae (Pansy Downy Mildew)
Genus	Peronospora (a genus of downy mildews)
Family	PERONOSPORACEAE (downy mildews)
Order	PERONOSPORALES (downy mildews and white rusts)
Class	PERONOSPOREA (a class of fungoid organisms)
Phylum	OOMYCOTA (a group of mainly plant-parasitic fungi)
Kingdom	CHROMISTA (algae)
Domain	Eukaryota (eukaryotes)
Life	BIOTA (living things)

Peronospora violae is also a member of:
Fungi s.l. - fungi (in the broad sense) (via Oomycota)
Micromycetes - microfungi (via Oomycota)
Lower Plants - lower plants (via Fungi s.l.)

NBN

NBN (data.nbn.org.uk) has a distribution map for Peronospora violae (Pansy Downy Mildew)

Identification Works

Handling & Magnification	Author	Year	Title	Source
	Hall, G.	1980	Peronospora violae	I.M.I. Descriptions of Pathogenic Fungi and Bacteria CMI Descriptions of Pathenogenic Fungi and Bacteria Sheet 977.

Peronospora violae (Pansy Downy Mildew) may also be included in identification literature listed under the following higher taxa:

Peronospora
(a genus of downy mildews)

PERONOSPORACEAE
(downy mildews)

PERONOSPORALES
(downy mildews and white rusts)

OOMYCOTA
(a group of mainly plant-parasitic fungi)

CHROMISTA
(algae)

Eukaryota
(eukaryotes)

BIOTA
(living things)

Fungi s.l.
(fungi (in the broad sense))

Literature listed under the following higher taxa may be relevant to Peronospora violae (Pansy Downy Mildew):

Peronospora
(a genus of downy mildews)

PERONOSPORACEAE
(downy mildews)

PERONOSPORALES
(downy mildews and white rusts)

OOMYCOTA
(a group of mainly plant-parasitic fungi)

CHROMISTA
(algae)

Eukaryota
(eukaryotes)

BIOTA
(living things)

Fungi s.l.
(fungi (in the broad sense))

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