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

hostplants

Betulaceae, monophagous

Alnus glutinosa.

note

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

references

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

12/08/2016

mod 9.xi.2017