Cag. Soares et al., ASCOMYCETOUS YEASTS FROM TROPICAL INTERTIDAL DARK MUD OF SOUTHEAST BRAZILIAN ESTUARIES, Journal of General and Applied Microbiology, 43(5), 1997, pp. 265-272
Four different intertidal estuarine sediments had distinct yeast commu
nities. One-hundred-ninety-three yeast isolates were classified in 47
species, with 34 of these in the genus Candida. Candida tropicalis was
the only ascomycetous species isolated from all four sites. Other opp
ortunistic pathogens including Candida glabrata, Candida guilliermondi
i, Candida parapsilosis and Candida krusei were present, especially at
the more polluted sites. Pichia species were also frequent isolates w
ith Pichia membranaefaciens, and its anamorph, Candida valida, and oth
er phenotypically similar low assimilation profile species the most fr
equent. Kluyveromyces aestuarii was prevalent at the only site with we
ll established mangrove vegetation, but not present at the other sites
. The sediment yeast communities were distinct from each other, but mo
re similar to each other than to the yeast communities of other ecosys
tems in the same geographic region.