Taphrina wiesneri
Encyclopedia
Taphrina wiesneri is a plant pathogen
Pathogen
A pathogen gignomai "I give birth to") or infectious agent — colloquially, a germ — is a microbe or microorganism such as a virus, bacterium, prion, or fungus that causes disease in its animal or plant host...

 causing witch's broom formations on Cherry trees (Prunus
Prunus
Prunus is a genus of trees and shrubs, which includes the plums, cherries, peaches, apricots and almonds. There are around 430 species spread throughout the northern temperate regions of the globe. Many members of the genus are widely cultivated for fruit and ornament.-Botany:Members of the genus...

& Cerasus
Cerasus
- Plants and fruits :* Cherry, aka Cerasus, subgenus of the genus Prunus* Cerasus, a synonym of the genus Prunus- Places :* Giresun, provincial capital of Giresun Province in the Black Sea Region of northeastern Turkey...

sp). It is a important pest species of the ornamental cherry Cerasus
Cerasus
- Plants and fruits :* Cherry, aka Cerasus, subgenus of the genus Prunus* Cerasus, a synonym of the genus Prunus- Places :* Giresun, provincial capital of Giresun Province in the Black Sea Region of northeastern Turkey...

X yedoensis in Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

.

Life Cycle

Komatsu et. al.found that hyphae of T. wiesneri overwintered in symptomatic shoots of Cerasus
Cerasus
- Plants and fruits :* Cherry, aka Cerasus, subgenus of the genus Prunus* Cerasus, a synonym of the genus Prunus- Places :* Giresun, provincial capital of Giresun Province in the Black Sea Region of northeastern Turkey...

X yedoensis. This is in contrast with the overwintering of other Taphrina species such as Taphrina deformans
Taphrina deformans
Taphrina deformans is a fungus and plant pathogen, one of the causal agents of peach leaf curl, the other being a virus.-Life Cycle:T.deformans infects species of the genus Prunus including P. amygdalus and P. persica . Infected leaves develop a whitish bloom as infection progresses...

that over winter on leaf and twig surfaces before initiating infection.

External links

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