Monitoring of anamorphic fungal spores in Madeira region (Portugal), 2003–2008
2016
Sousa, Lisandra | Camacho, Irene Câmara | Grinn-Gofroń, Agnieszka | Camacho, Roberto
Seven years of aeromycological study was performed in the city of Funchal with the purpose to determine the anamorphic spore content of this region and its relationship to meteorological factors. The sampling was carried out with a Hirst-type volumetric spore trap following well-established guidelines. A total of 17,586 anamorphic fungal spores were recorded during the studied period, attaining an annual average concentration of 2931 spores m⁻³. Anamorphic fungal spores were observed throughout the year, although the major peaks were registered during spring (April–June) and autumn period (September–November). The lowest spore levels were recorded between December and February months. Over 14 taxa of anamorphic fungal spores were observed with Cladosporium being the most prevalent fungal type accounting for 78 % of the total conidiospores. The next in importance was Alternaria (5.4 %), Fusarium (4.7 %), Torula (3.9 %) and Botrytis (1.9 %). Temperature was the meteorological parameter that favoured the most release and dispersal of the conidiospores, whereas rainfall revealed a negative effect. Despite the low concentration levels found in our region, the majority of the fungal types identified are described as potential aeroallergens. This study provides the seasonal variation of the conidiospores and the periods when the highest counts may be expected, representing a preventive tool in the allergic sensitization of the population.
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