E¡ect of environmenton theabundanceandactivityof the nematophagous fungusHirsutellaminnesotensis in soil Meichun Xiang, Ping’an Xiang, Xingzhong Liu & Limei Zhang Key Laboratory of Systematic Mycology and Lichenology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China; College of Agriculture, Hunan Agricultural University, Changsha, China; and Research Centre for Eco-environ...