Table 1.

Location of sampling sites and viable yeast counts isolated in different sources in Antarctica.

Substrate	Sites and location	Number of samples	Log CFU/g or log CFU/La	Mean Log CFU/g or CFU/L	Standard deviation (Log)
Rhizosphere of Deschampsia antarctica Desv. (Poaceae)	Machu Picchu Station (62°07’S, 58°23’W); Plaza point (62°03’S, 58°24W); Brazilian Refuge II (62°04’S, 58°25’W) Demay point (62°12’S, 58°19’W); Hennequin point (62°05’S, 58°24’W); Botany point (62°05’S, 8°19’W); Ulmann point (62°05’S, 58°20’W); Henry Arctowisky Station (62°09’S, 58°27’W)	21	2 - 3.2b	2.4	0.4
Ornithogenic (penguin guano) soil	Demay point (62°12’S, 58°19’W); Chabrier Rock (62°11’S, 58°18’W)	8	2 - 3	2.1	0.3
Soil	Ulmann point (62°05’S, 58°20’W); Henry Arctowisky Station (62°09’S, 58°27’W); Botany point (62°05’S, 8°19’W); Comandante Ferraz Brazilian Station (62°05’S, 58°24’W)	11	2 - 2.9	2.3	0.3
Sediment	Port Foster, Deception Island (62°55’S, 60°37’W); Macchu Picchu station (62°07’S, 58°23’W); Copacabana United States Refuge (62°10’S, 58°26’W)	7	2 - 3.2	2.4	0.4
Seawater	Botany point (62°05’S, 58°19’W); Ulmann point (62°05’S, 58°20’W)	5	2 - 2.9	2.1	0.2
Freshwater from lakes	Macchu Picchu Station (62°07’S, 58°23’W); Copacabana United States Refuge (62°10’S, 58°26’W)	16	2 - 3.7	2.3	0.5

^aCFU(colony forming units)/g or /L;

^bMinimal and maximum counts.