Hubert De Meulder Verenigde Natieslaan 131 B- 2660 Hoboken
Onderzoek naar het voorkomen van ascomyceten op mest van geit en schaap (deel 3)
De Meulder H. Research for the occurrence of Ascomycetes on dung of goat and sheep (third part). Med. Antwerpse Mycol. Kring 2007: 57-63
Summary:
A search for Ascomycetes on dung of goat and sheep carried out in 2007, resulted in 38 species belonging to 13 genera. In the third part of this article 11 species are briefly described and illustrated.
They belong to the order of the Sordariales viz.: Podospora anserina, P. communis, P. conica, P. curvicolla, P. excentrica, P. fimiseda, P. globosa, P. pyriformis, P. setosa, P. tetraspora, P. vesticola.
Samenvatting
Een onderzoek naar het voorkomen van Ascomyceten op mest van geit en schaap, dat in 2007 werd uitgevoerd, resulteerde in 38 soorten behorende tot 13 geslachten. In dit derde deel van het artikel worden er 11 soorten in het kort beschreven en geïllustreerd. Ze behoren tot de orde van de Sordariales viz.: Podospora anserina, P. communis, P. conica, P. curvicolla, P. excentrica, P. fimiseda, P. globosa, P. pyriformis, P. setosa. P. tetraspora, P. vesticola.
Tjakko Stijve St.-Légier, Zwitserland
Zware metalen in eetbare Bovisten
Summary:
Puffballs, especially the giant puffball (Langermannia gigantea), the mosaic puffball (Calvatia utriformis), and, to a lesser extent, the gem-studded puffball (Lycoperdon perlatum) are generally recognised as good edibles. Recipes for their culinary preparation were already given in 19th century publications. Unfortunately, these puffballs have recently been exposed as potent accumulators of heavy metals. All three species have mercury contents exceeding the Swiss legal limit for cultivated mushrooms. In addition, C. utriformis concentrates lead, and L. perlatum lead and cadmium, both in excessive amounts. This phenomenon cannot always be related to pollution, since puffballs, especially C. utriformis, growing far from industrial and mining areas, still have an unduly high heavy metal content. Nevertheless, human activities, such as motor traffic and waste incineration, contribute significantly to the mercury, lead and cadmium concentrations. The significance of these findings for the consumer is briefly discussed. Finally, it is demonstrated that many puffballs, e.g. Bovista plumbea, can be used as indicator organisms for environmental pollution, not only with heavy metals, but with certain pesticide residues as well.
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