Fungal microbiota is transferred from mother to child

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The fungal microbiota (mycobiota) is an integral part of the intestinal microbiota. Its establishment in the first months of life has recently been described.

The intestinal mycobiota, which represents 13% of the total volume of the intestinal microbiota, is a relatively unexplored field of research. Norwegian researchers investigated the potential of mother-child transfer, and conducted a study on a cohort of 400 mother/ child pairs from birth until two years of age. They analyzed the composition of the fungal intestinal microbiota in fecal samples from the mothers (before and after pregnancy) and their children (at 10 days, 3 months, 1 year, and 2 years of age). Fungal DNA was detected in 88% of mothers and in variable proportions in their offspring,: at a higher rate (76%) during the first days of life, and progressively diminishing until the age of 1 (56%), then increasing again until age 2, when the fungal microbiota was definitively established, according to the study. From a species perspective, Debaryomyces hansenii and Saccharomyces cerevisiae were the most commonly found: the former was particularly prevalent in the first year of life, and the latter was found in abundance in the mothers and in children aged one to two. The influence of the mycobiota on the health of the young child still needs to be studied.

Source :
Schei K. et al. Early gut microbia and mother offspring transfert. Microbiome. 2017. August 24 ; 5(1): 107 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5571498/