Fröhlich-Nowoisky Janine, Pickersgill Daniel A, Després Viviane R, Pöschl Ulrich
Biogeochemistry Department, Max Planck Institute for Chemistry, Johann-Joachim-Becher-Weg 27, 55128 Mainz, Germany.
Proc Natl Acad Sci U S A. 2009 Aug 4;106(31):12814-9. doi: 10.1073/pnas.0811003106. Epub 2009 Jul 17.
Fungal spores can account for large proportions of air particulate matter, and they may potentially influence the hydrological cycle and climate as nuclei for water droplets and ice crystals in clouds, fog, and precipitation. Moreover, some fungi are major pathogens and allergens. The diversity of airborne fungi is, however, not well-known. By DNA analysis we found pronounced differences in the relative abundance and seasonal cycles of various groups of fungi in coarse and fine particulate matter, with more plant pathogens in the coarse fraction and more human pathogens and allergens in the respirable fine particle fraction (<3 microm). Moreover, the ratio of Basidiomycota to Ascomycota was found to be much higher than previously assumed, which might also apply to the biosphere.
真菌孢子在空气颗粒物中占比很大，作为云、雾和降水中水滴和冰晶的凝结核，它们可能会对水文循环和气候产生潜在影响。此外，一些真菌是主要的病原体和过敏原。然而，空气传播真菌的多样性尚不为人所知。通过DNA分析，我们发现粗颗粒物和细颗粒物中各类真菌的相对丰度和季节周期存在显著差异，粗颗粒物中植物病原体较多，可吸入细颗粒物（<3微米）中人类病原体和过敏原较多。此外，担子菌门与子囊菌门的比例比之前设想的要高得多，这可能也适用于生物圈。
