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SVENSK BOTANISK TIDSKRIFT 1916. Bp 10, n. 1.
ra — = ae
BEL PRESENCE AND SIGNIFICANCE Ok
meeps IN THE ALIMENTARY CANAL
OF VAN AND HIGHER. ANIMALS
BY
GOTE TURESSON
During a course of study of coprophilous fungi, dungs of various
animals were examined and many interesting forms were isolated
and grown in pure cultures. Also human faeces were tried, and
a remarkable series of different moulds were brought to light from
this material. As it seemed desirable to investigate more fully this
latter group of fungi, the subsequent work was largely confined to
the examination of different samples of human faeces. This was
thought to be the more important because no systematic study of
fungi present in human excrements seems to have been made. At
the outset of the study only a listing of the species found in the faeces
was contemplated, but the forms isolated proved to be of so much
interest, that a more exhaustive treatment seemed warranted. The
passage of moulds through the alimentary canal led to an investi-
gation of the factors which determine or influence the transmission
of the spores, e. g. body temperature and the digestive fluids. The
frequent occurrence of fungous spores in the digestive tract, often
in considerable numbers, suggested experimental work, the purpose
of which was to determine whether an accumulation of fungous
spores led to any digestive disturbances. The toxic properties of
various moulds have been discussed repeatedly in recent years,
but the statements are peculiarly conflicting. The importance of
the problem was realized and efforts were made to reach a definite
conclusion as to the toxic effects of moulds. The finding of
pathogenic forms in the digestive tract known to cause mycoses
of various organs was further thought to be of some significance,
and therefore received due attention.
Svensk Botanisk Tidskrift 1916. 1
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