1 research outputs found
Enteric bacteria and fungi of the Eudrilid earthworm Libyodrilus violaceus
The identity and multiplication of bacteria and fungi (yeasts and mould) as they pass along the
alimentary tract of the earthworm Libyodrilus violaceus have been studied. The bacteria isolated
included Acinetobacter sp., Alcaligans faecalis, Bacillus brevis, Bacillus ceveus, Bacillus lalerosporus,
Bacillus lichenoform, Bacillus maceraus, Bacillus sp., Corynebacterium sp., Enterobacter cloacae,
Erwinia salicie, Flavobacterium aquartile, Flavobacterium sp., Klebsiella sp., Micrococcus inteus,
Micrococcus kristinae, Micrococcus varians, Proteus myxofasciens, Proteus rennevi, Proteus vulgaris
and Pseudomonas sp. Whereas P. vulgaris is a normal harmless inhabitant of the human intestine
where it assist with digestion, it sometimes becomes pathogenic causing urinary tract infection. For
now there is no information on if it undergoes similar change in the earthworms and if such a potential
risk is transmissible to man. The fungi isolated included the following yeasts: Saccharomycos
cerevisiae, Rhodoturula graminis, Saccharomycos sp., Candida valida, Geotrichium niger; and the
following moulds: Aspergillus niger, Aspergillus fumigatus, Fusarium sp., Rhizopus sp. It is
noteworthy that none of the fungi has the ability to digest melobiose, a disaccharide formed by an
alpha linkage between galactose and glucose. Microbial counts increases along the alimentary track
from eosophagus to rectum. Most of the microbes flourish best in an alimentary track region than in
others. Thus, they tend to colonize different regions and thus minimize competitio