Concentración de esporas de Alternaria, Cladosporium y Fusarium en la atmósfera de Santiago de Compostela (1996)

Abstract

DOPAZO, A. & AIRA, M.J. 2001. Alternaria, Cladosporium and Fusarium spore concentration in the atmosphere of Santiago de Compostela (1996). Bot. Complutensis, 25: 83-91. In this work we analyse the first results of aerobiology count of three types of fungal spores (Alternaria, Cladosporium and Fusarium) which were found in the atmosphere of Santiago de Compostela during 1996. In that period we identified 143.642 spores, of which 83 Á. Dopazo Martínez et al. Concentración de esporas de Alternaria... 98% corresponded to Cladosporium type, whereas Alternaria and Fusarium type represented 1% in each case. The spore concentration of these three form-genera has increased gradually from May, reaching its maximum peak in the atmosphere in july and august; since then there has been a fall till the end of the year. The relationship existing between the values of atmospheric concentration and the ones of the meteorological parameters (humidity, rainfall, maximum, average and minimum temperature and hours of sunshine) has been determined estatistically, obtaining results with a high significance value. The precipitation and humidity showed a negative correlation with the spore concentrations of Alternaria and Cladosporium and positive to Fusarium; the temperature has always influenced positively in the presence of these three types of spores in the air. As regards their intradiarial distribution it has been observed that there is a higher representation of Fusarium spores in the first hours in the morning, Cladosporium at mid afternoon and Alternaria at 20 hours.