Occurrence of Serratia marcescens on macrofungi in Hungary

Abstract

Background and purpose: The main objective of this paper is to report the occurrence of Serratia marcescens (Bizio, 1823), a bacterium on macrofungi and review the data of other collectors in Hungary. Materials and methods: Our mycological research was conducted in ten localities of the North Hungarian Mountain Ranges and in one sampling site of Mezőföld between 2019-2022. Results: Infection of S. marcescens was recorded on fourteen fungal species in northern Hungary. In addition, we reported 18 occurrence data of this bacterium by other collectors of Hungary. The infection of S. marcescens was highest in autumn. The most abundant infected fungal species was the edible and marketable Lepista personata (Fr.) Cooke, 1871. We identified the most fungal species as substrate in the family Agaricaceae. Conclusions: We conclude that the infection of S. marcescens of macrofungi was detected independently of life mode and habitat occupied of fungi. However, the seasons influenced the occupancy of this species to varying degrees.