Effect of the oscillating magnetic field on airborne fungal

ANAYA, MATILDE; GÁMEZ-ESPINOSA, ERASMO; VALDÉS, ODERLAISE; GUZMÁN, TANIA; BORREGO, SOFÍA

ARCHIVES OF MICROBIOLOGY

SPRINGER

Lugar: Berlin; Año: 2021 vol. 203 p. 2139 - 2145

0302-8933

This study shows that some species of fungi are affected by the magnetic field, which should be taken into account in studiesof airborne fungal and air quality. The aim of this paper was to evaluate the effect of the oscillating magnetic field (OMF)on the behavior of colonies of three fungi genus growth in different culture mediums. The stains were: Aspergillus niger,Cladosporium cladosporioides and Penicillium citrinum and were inoculated in 90 mm Petri dishes with: Malt Extract Agar(MEA), Sabouraud Dextrose Agar (SDA) and Czapek-Dox Agar (CDA). Was applied them OMF of 60 Hz/220 V between1 and 5 mT during 2 h and then they were incubated 7 days to 28 °C. Colonies size (mm) every day was measured. Stimulationin the colonies size of all experimental conditions was showed; the greatest size of A. niger in MEA was notorious. Itwas demonstrated by statist analyze that only colonies size with 1 mT was significance respect to the control. The effect ofOMF on the cellular metabolism was evidenced, as well as: less exudation and major pigmentation of P. citrinum in MEA;variation of pigmentation of A. niger and C. cladosporioides in CDA and increase of conidiogenesis of A. niger in SDA.Was concluded that the applied OMF had a major influence on size colony and mycelia pigmentation of A. niger that C. cladosporioidesand P. citrinum, independently of the nutritional state according to the culture medium employed in this study.