文摘
Arbuscular mycorrhizal (AM) fungal spores were isolated and identified morphologically from soil samples collected from a wheat field at a suburb of Jiangdu, China. Only one speciesGlomus caledonium and a small proportion of its spores were occupied by other spores. The occupant spores all belonged toGlomus microaggregatum. The number ofG. microaggregatum spores inhabiting a singleG. caledonium spore was generally approximately from 5 to 50, depending on the size of the occupied spore and its inhabitants. To our knowledge, this is the first observation thatG. caledonium can be occupied byG. microaggregatum spores.