云南水稻潜根线虫种类及生态分布研究  

Species and Distribution of Rice Root Nematode in Yunnan Province,China

作　　者：胡先奇[1] 余敏[1] 林丽飞[1] 王扬[1] 喻盛甫[1] 

机构地区：[1]云南农业大学云南省植物病理重点实验室,昆明650201

出　　处：《中国农业科学》2004年第5期681-686,共6页Scientia Agricultura Sinica

基　　金：云南省应用基础研究基金青年基金资助项目(98C005Q)

摘　　要：调查鉴定了云南省水稻上的10种潜根线虫,分别是贝氏潜根线虫(Hirschmanniellabelli)、刻尾潜根线虫(H.caudacrena)、分离潜根线虫(H.diversa)、纤细潜根线虫(H.gracilis)、伊玛姆潜根线虫(H.imamuri)、墨西哥潜根线虫(H.mexicana)、小结潜根线虫(H.microtyla)、尖细潜根线虫(H.mucronata)、水稻潜根线虫(H.oryzae)、刺尾潜根线虫(H.spinicaudata),其中7个种是水稻的重要病原线虫。优势种为H.oryzae和H.imamuri。其种类组合的总趋势是H.oryzae+H.imamuri,为世界常见的组合形式。由于云南复杂而多样的生态环境,不同海拔、纬度的地区,种类组合又有差异。海拔和纬度均影响潜根线虫的种类分布,但认为海拔与潜根线虫种类分布的关系更为密切。分析了这类线虫生态分布的特点。Rice root nematodes, Hirschmanniella spp. parasitize in roots of rice and water plant, and their distributionis wide and they are very harmful. Ten species of the genus Hirschmanniella Luc et Goody, 1964 (Nemata: Pratylenchidae)parasitizing in the root of rice from Yunnan Province are reported. They are H. belli, H. caudacrena, H. diversa, H. gracilis,H. imamuri, H. mexicana, H. microtyla, H. mucronata, H. oryzae and H. spinicaudata, including seven species of genusHirschmanniella which are important pathogenic nematodes for paddy. Dominant species are H. oryzae and H. imamari.Popularly, the trend of species combination mode is H. oryzae and H. imamuri, which is familiar combination mode in theworld, but the species combination mode is different due to the difference of altitude and latitude. Their distributioncorrelates with altitude and latitude closely, and also correlates with the type of paddy crops, such as indica or japonica rice

关 键 词：水稻 潜根线虫 种类 生态分布 云南 海拔 纬度 

分 类 号：S435.11[农业科学—农业昆虫与害虫防治]