Acaulospora rehmii and Gigaspora margarita, arbuscular mycorrhizal fungi (Glomeromycota) new for Europe and Poland, respectively

Abstract

Morphological characters of spores of Acaulospora rehmii and Gigaspora margarita (Glomeromycota) were described and illustrated. Spores of the two species were found in field-collected mixtures of rhizosphere soil and roots collected in Poland. Attempts to produce spores in trap cultures succeeded only with G. margarita. All attempts to establish one-species cultures of the two fungi failed. Gigaspora margarita was for the first time found in Poland and this paper is the first report of the occurrence of A. rehmii in Europe. The known distribution of the two fungal species in the world is also presented.