Phytophthora cambivora
Encyclopedia
Phytophthora cambivora is a plant pathogen that causes Ink disease in European Chestnut trees (Castanea sativa). Ink disease, also caused by Phytophthora cinnamomi
Phytophthora cinnamomi
Phytophthora cinnamomi is a soil-borne water mould that produces an infection which causes a condition in plants called root rot or dieback. The plant pathogen is one of the world's most invasive species and is present in over 70 countries from around the world.- Life cycle and effects on plants :P...

, is thought to have been present in Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

 since the 18th century and causes chestnut trees to wilt and die, major epidemics occurred during the 19th and 20th centuries. P. cinnamomi and P. cambivora are now present throughout Europe and since the 1990s Ink disease has resurged, often causing high mortality of trees, particularly in Portugal
Portugal
Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

, Italy
Italy
Italy , officially the Italian Republic languages]] under the European Charter for Regional or Minority Languages. In each of these, Italy's official name is as follows:;;;;;;;;), is a unitary parliamentary republic in South-Central Europe. To the north it borders France, Switzerland, Austria and...

 and France
France
The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

. It has also been isolated from a number of different species since the 1990s including:
  • Golden chinquapin trees, (Chrysolepis chrysophylla) in Oregon
    Oregon
    Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...

    , USA.
  • Rhododendron
    Rhododendron
    Rhododendron is a genus of over 1 000 species of woody plants in the heath family, most with showy flowers...

    and Pieris
    Pieris (plant)
    Pieris is a genus of seven species of shrubs in the family Ericaceae, native to mountain regions of eastern and southern Asia, eastern North America and Cuba. Known commonly as andromedas or fetterbushes, they are broad-leaved evergreen shrubs growing to 1–6 m tall and wide...

    species in North Carolina
    North Carolina
    North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...

    , USA.
  • Noble Fir trees (Abies procera) in Norway
    Norway
    Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

    .
  • Beech trees (Fagus sylvatica) in Italy and Germany
    Germany
    Germany , officially the Federal Republic of Germany , is a federal parliamentary republic in Europe. The country consists of 16 states while the capital and largest city is Berlin. Germany covers an area of 357,021 km2 and has a largely temperate seasonal climate...

    .


Some species of mycorhiza (including Amanita muscaria
Amanita muscaria
Amanita muscaria, commonly known as the fly agaric or fly amanita , is a poisonous and psychoactive basidiomycete fungus, one of many in the genus Amanita...

, Boletus luridus
Boletus luridus
Boletus luridus, commonly known as the lurid bolete, is a fungus of the bolete family, found in deciduous woodlands in Europe and eastern North America. Fruiting bodies arise in summer and autumn and may be common. It is a solid bolete with an olive-brown cap, orange pores and stout ochre stem...

and Hebeloma radicosum
Hebeloma radicosum
Hebeloma radicosum is a species of mushroom in the Hymenogastraceae family. It can be identified by the tapering root-like stem base, as well as the almond like odour. Though edible, it makes poor eating. Collection of this species has been made illegal in some countries such as Saudi Arabia,...

) may provide protection from P. cambivora in European Chestnuts.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
x
OK