Abstract

It was established that the biomass of fungal mycelium decreased by 30-50% during passage through the in- testine of the Aporrectodea caliginosa and Lumbricus terrestris earthworms, while its content in empty intes- tines was 40-60% less than in the soil. It was found that the amount of mycelium increases again in three-day-old coprolites due to the rapid growth of the species. It was demonstrated that the physiological activity of fungi (estimated according to the time of the appearance of colonies on the medium and probability of propagation) is lower in the intestine content, digestive tract, and fresh excrement of the worms than in the soil. It was noted that the activity and diversity of organic substrates (utilized by fungi), as well as proteolytic activity is lower in fungal isolates from the intestine than from the soil. It was registered that the death of a part of the fungi occurs in the worm intestine, while the physiological state changes in the animals withstanding the effect of the digestive medium.

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