2010l-527 adaptation anpassung archaebacteria bacteria bakterien bio154f bio422f effectofsalton eukaryonten eukaryoticcells extremeenvironments halobacteriales halophyten metabolism methanbakterien methane methanobacteriaceae microbiology physiological qw50 qw80 salzresistenz sodiumchloride symbiosis watermicrobiology wn2860