Fungal flora on board the Mir-Space Station, identification by morphological features and ribosomal DNA sequences

This report is on the morphological and molecular biological identification , using 18S- and ITS1-rDNA sequences, of the "space fungi" isolated on boar d the Russian Mir-Space Station as the major constituents of the fungal flo ra. The sis fungal strains were isolated from air by using an air sampler o r from condensation. Strains were identified as Penicillium chrysogenum, As pergillus versicolor, or Penicillium sp, by both methods. The species of sp ace fungi were common saprophytic fungi in our living environment, potentia l pathogens, and allergens. This study concluded that the environment on bo ard the space station Mir allows the growth of potentially pathogenic fungi as true in residential areas on the earth. Therefore, to prevent infection or other health disorders caused by these fungi, easy and reliable methods should he established to survey the fungal flora in a space station.