Fungal material
Saprotrophic fungi were isolated from soil samples derived from a
grassland site in northern Germany (“Oderhänge Mallnow” close to the
town of Lebus, Germany; 52°13´N, 14°13´E) (Andrade-Linares et al.2016). This fungal collection of overall 31 isolates has been
characterized in detail in previous studies (Zheng et al. 2018;
Lehmann et al. 2019), and covers Mucoromycota, Basidiomycota and
Ascomycota (see Table S1).
Before the experiment, each isolate used here was divided into three
repetitions and cultured separately on potato-dextrose agar with
antibiotics to eliminate potential contaminants. Subsequently,
repetitions were transferred to water agar (1.5 %), in order to reduce
nutrient storage in fungal tissues. Hereafter, the three repetitions
were analyzed separately for each fungal isolate and treatment.