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水生捕食线虫真菌季节性分布及多样性研究
引用本文:郝玉娥,张铭洋,谭胜全,周艺,薛金花,向艳,全淑芬. 水生捕食线虫真菌季节性分布及多样性研究[J]. 南华大学学报(自然科学版), 2012, 26(1): 87-92
作者姓名:郝玉娥  张铭洋  谭胜全  周艺  薛金花  向艳  全淑芬
作者单位:1. 南华大学公共卫生学院,湖南衡阳,421001
2. 湖南省怀化铁路疾病预防控制中心,湖南怀化,418000
3. 湖南省益阳市沅江市疾控中心,湖南益阳,413100
基金项目:湖南省教育厅科技基金资助项目(09C828)
摘    要:
从云南滇池附近的三块水稻田和三口鱼塘中分离到的捕食线虫真菌种类比较相似,但从鱼塘中分离到的捕食线虫真菌种类要比水稻田中的少,两个生境中的优势种也不同.水稻田中,春季和秋季的优势种为Arbrostrys conoides,夏季和冬季的优势种为A.oligospora,秋季的捕食线虫真菌种类最多,春季次之,夏季和冬季最少;鱼塘中,春季、夏季和冬季的优势种均为Dactylellina ellipsosporum,秋季的优势种为A.ver-micola.夏季的捕食线虫真菌种类最多,其他三个季节的捕食线虫真菌种类相差不大.从湖南湘江衡阳段的300份泥土样品中,共分离、鉴定出17种水生捕食线虫真菌,东洲岛和新大桥水域分离的水生捕食线虫真菌比李坳水域分离的种数少.

关 键 词:水生捕食线虫真菌  季节分布  资源调查  多样性
收稿时间:2011-09-15

The Seasonal Fluctuation and Diversity of Aquatic Nematode-trapping Fungi
HAO Yu-e,ZHANG Ming-yang,TAN Sheng-quan,ZHOU Yi,XUE Jin-hu,XIANG Yan,QUAN Shu-fen. The Seasonal Fluctuation and Diversity of Aquatic Nematode-trapping Fungi[J]. Journal of Nanhua University(Science and Technology), 2012, 26(1): 87-92
Authors:HAO Yu-e  ZHANG Ming-yang  TAN Sheng-quan  ZHOU Yi  XUE Jin-hu  XIANG Yan  QUAN Shu-fen
Affiliation:1(1.School of Public Health,University of South China,Hengyang,Hunan 421001,China; 2.Railroad Center for Disease Control and Prevention,Huaihua,Hunan 418000,China; 3.Yuanjiang Center for Disease Control and Prevention,Yiyang,Hunan 413100,China)
Abstract:
Species of nematode-trapping fungi isolated from three paddy fields and three fish ponds around Dianchi Lake in Yunnan province were compared.Those isolated from the fish ponds were fewer than those from the paddy fields and the dominant species in the two eco-environments were not the same.In the paddy fields Arbrostrys conoides was dominant in spring and fall and A.oligospora was dominant in summer and winter.Further in fall,species of nematode-trapping fungi were the most,then in spring,in summer and winter.However,in the fish ponds,Dactylellina ellipsosporum was dominant in spring,summer and winter and A.vermicola,in fall.In summer,species of nematode-trapping fungi were more than those in any of the rest seasons and the amount of species in the three seasons varied little.From the 300 samples collected in Hengyang part of Xiangjiang River in Hunan province,17 species of nematode-trapping fungi were isolated and identified.But the amount of the species varied from sample site to site.Those in waters of Dongzhou Island and new Xiangjiang Bridge were more than those in waters of Liao in Xiangjiang River.
Keywords:aquatic nematode-tapping fungi  seasonal fluctuation  resource investigation  diversity
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