Plant Parasites of Europe

leafminers, galls and fungi

Frankia alni

Frankia alni (Woronin) Von Tubeuf, 1895

on Alnus

Frankia alni galls

Alnus glutinosa, Belgium, prov. Namur, Pondrome, Ruisseau de Snaye; © Jean-Yves Baugnée

Frankia alni galls

another specimen


Betulaceae, monophagous

Alnus glutinosa.


The symbiotic bacterium that induces these root tubercles has a strong positive influence on the fertility of the soil by fixation of atmospheric nitrogen.


Bellmann (2012a), Benson & Silvester (1993a), Buhr (1964b), Coulianos & Holmåsen (1991a), Dauphin & Aniotsbehere (1997a), Redfern & Shirley (2011a), Roskam (2009a).


Last modified 9.xi.2017