Plant Parasites of Europe

leafminers, galls and fungi

Taphrina padi

Taphrina padi (Jaczewski) Mix, 1947

pocket plum gall

on Prunus

Taphrina padi galls on Prunus padus

Dronten, Binnenbos, 21.iv.2020 © Arnold Grosscurt: initial galling: note swelling of the peduncle, receptacle and anthers

Taphrina padi galls on Prunus padus

22.iv.2020: the ovary is enlarged, the anthers are fipped downwards

Taphrina padi galls on Prunus padus

27.iv.2020: the anthers are grey, i.e. covered with asci

Taphrina padi galls on Prunus padus

11.v.2020: anthers and receptacle are completely disintegrated

Taphrina padi: gall on Prunus padus

Prunus padus, Belgium, prov. Antwerp, Geel, Neerheist, 21.v.2020 © Carina Van Steenwinkel

Taphrina padi: asci

section through a swollen anther, lined with asci

Taphrina padi: asci

the layer of asci

Taphrina padi: asci

detail, to show the basal cells

Taphrina padi: asci

another imago

Taphrina padi: ascus

an isolated ascus; the measurements were 10-12 x 30-48 µm.

Taphrina padi: ascospores

released ascospores

Taphrina padi: ascospores

ascospores

Taphrina padi galled fruits

Prunus padus, Duin en Kruidberg, 26.v.2012

Taphrina padi: gall on Prunus padus

Prunus padus, Eerbeek, Coldenhove, 14.vi.2014 © Arnold Grosscurt: the galls sometimes seem infested by boring insects

Taphrina padi: gall on Prunus padus

section through a galled and a normal fruit; in the gall the remnant of the stone is still recognisable

Taphrina padi: gall on Prunus padus

Prunus padus, Biddinghuizen, Spijk- en Bremerbergbos 26.v.2016 © Hans Jonkman

Taphrina padi: gall on Prunus padus

galled young shoot, on a tree that also had galled fruits

Taphrina padi: withered gall on Prunus padus

all within a week the galled fruits wither an drop to the grond

Taphrina padi: withered galls on Prunus padus

some three days later

Taphrina padi: withered gall on Prunus padnus

also the twig galls soon shrivel

host plants

Rosaceae, narrowly monophagous

Prunus padus.

notes

Redfern & Shirley (2011a) write that in galled fruits the styles are persistent, but this does not happen in all cases.

references

Bacigálová, Mułenko & Wołczańska (2005a), Bellmann (2012a), Buhr (1965a), Chinery (2011a), Dauphin & Aniotsbehere (1997a), Dietrich (2013a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Koops (2013a), Kozłowska, Mułenko & Heluta (2015a), Kruse (2019a), Mix (1936a, 1949a), Redfern & Shirley (2011a), Roskam (2009a), Tomasi (2003a, 2014a).

Last modified 23.v.2020