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食线虫真菌广布于世界各地,从Dtechsler(1933)开始研究以后,各国的学者进行了广泛的调查(Barron,1977;Gray,1987a),包括台湾(Chu & Hu,1964;Tsai & Huang,1975),而我国大陆近几年才有一些研究(Liu et al.,1993;何胜洋和葛启新,1987;余永年,1977;张克勤等,1991)。绝大多数捕食线虫真菌是广泛分布的,只有少数在局部地区报道,但不同地区、不同条件下,优势种类有所不同,如在英国Acrostalagmus obovatus和Harposporium anguilluiae是最多的(Duddington,1951)。
Nematophagous fungi are widely distributed throughout the world and have been widely investigated by scholars from various countries (Drongers, 1933) (Barron, 1977; Gray, 1987a), including Taiwan (Chu & Hu, 1964; Tsai & Huang, 1975 However, there are some researches in mainland China in recent years (Liu et al., 1993; He Shengyang and Ge Qixin, 1987; Yu Yongnian, 1977; Zhang Keqin et al., 1991). The majority of predatory nematode fungi are widely distributed, with only a few reported in local areas, but the dominant species vary in different regions and under different conditions, such as Acrostalagmus obovatus and Harposporium anguilluiae in the United Kingdom (Duddington, 1951).