Total biomass accumulation in individuals of Colobanthus quitensis and Deschampsia antarctica with (E +) and without (E -) root fungal endophytes after nitrogen mineralization assay
Penicillium chrysosgenum and Penicillium brevicompactum were used as root fungal endophytes for C. quitensis and D. antarctica, respectively. The mean and quartile distribution of individual plants (n =7) are indicated. Asterisks denote significant differences between treatments (p < 0.05) as determined by a t-test.
Kinetic of nitrogen mineralization in soils in contact with axenic individuals of Colobanthus quitensis and Deschampsia antarctica inoculated (E+) or not inoculated (E-) with root fungal endophytes
Single plants individuals (n = 7) emerging from benomyl-treated cultures were cultured in 300 ml pots containing autoclaved antarctic soil supplemented with urea as nitrogen source. Mineralization was estimated as the percentage of N-urea transformed to N-NH4+. Asterisks denote significant mean differences between treatments.