“…A range of organisms have already been investigated in these habitats such as microbial communities collected in permafrost soils (Hansen et al, 2009), endolithic cyanobacteria from deserts (Baqué et al, 2013), or cryptoendolithic fungi from Antarctica Selbmann et al, 2015;Pacelli et al, 2016). Furthermore, epilithic organisms were frequently investigated, such as phototrophic biofilms Cockell et al, 2011) or a wide range of lichens from northern hemispheric steppes (de la Torre et al, 2010;Sánchez et al, 2012), continental Antarctica (de Vera et al, 2014;Meeßen et al, 2015), as well as from polar and alpine habitats (de Vera, 2012;Brandt et al, 2016Brandt et al, , 2017.…”