Аннотация:Vera A. TEREKHOVA
REGULATORY ROLE OF MELANIN-CONTAINING FUNGI IN ECOSYSTEM STABILITY
Introduction
Sustainable functioning of terrestrial ecosystems depends, to the greatest extent, on the balance of the organic matter biosynthesis and destruction on Earth. It is hard to overestimate the contribution of fungi to these processes. In terrestrial cenoses, fungi control a paramount natural phenomenon such as the environment-forming function via the transformation of the soil organic composition and changes in the structure, acidity and even temperature parameters of soils. Steadily enhancing industrial impact and diverse stress factors dramatically affect the structural and functional organization of fungal communities. Studying of the dynamics of adverse exposure-insensitive melanin-bearing fungi is viewed as an important pathway to a better understanding of regulatory mechanisms responsible for stable functioning and ecological quality of ecosystems.
Conclusions
The obtained data evidence to the fact that technogenic exposure produces a regulatory effect on the structure and functioning of the pool of destructors (fungal communities) as well as that there is a strong relation between soil and its richness in humic matter. The regulatory role of melaninized fungi in ecosystem stability is conditioned by a special mechanism, apparently, associated with the participation of fungal communities in the generation of humic substances.
The research is performed with support of the Russian Science Foundation (Grant 14-50-00029) and the RAS Presidium Program «Wildlife: Current Status and Development».
