云南景东县豆科固氮树种及根瘤菌资源调查  

Investigation on Resources of Nitrogen-fixing Leguminous Tree Species and Rhizobia in Jingdong County of Yunnan Province

作　　者：贾风勤[1] 杨比伦[2] 腊萍[1] 

机构地区：[1]伊犁师范学院化学与生物科学学院,新疆伊犁835000 [2]西南林学院资源学院,云南昆明650224

出　　处：《西南林学院学报》2009年第4期13-18,共6页Journal of Southwest Forestry College

基　　金：伊犁师范学院科研基金启动项目(2007YB032)资助

摘　　要：对云南景东县豆科固氮树种进行调查采集与鉴定,确认并记录70种与相应的根瘤菌(菌株)共生的豆科固氮树种。其中,云实亚科1属1种,含羞草亚科6属20种,蝶形花亚科23属49种。根瘤大小不一,形状各异,有球形、椭圆形、棒状、珊瑚状;表面颜色有浅黄色、棕黑色、棕色或黑色。对以活体保存的材料进行根瘤菌的分离、鉴定,获得并保存了分别与其中38种豆科树种相共生的根瘤菌菌株147株。调查表明,在景东县及云南南亚热带区域和热带区域,不仅拥有可供在多方面开发利用的豆科固氮树种,且具有丰富的可供科研和开发利用的根瘤菌资源。70 nitrogen-fixing leguminous tree species （NfLTS） that are symbiotic with the appropriate rhizobium strains were identified and recorded through the primary investigation on the relevant resources in Jingdong County, Yunnan Province. Among the 70 species, there was only one species of one genus from the family of Caesalpinioideae and there were 20 species of 6 genera from Mimosaideae family and 49 species of 23 genera from Papilionoideae family. The volume and shape of the nodules varied with the leguminous tree species and rhizobia. The shapes of the nodules were usually globose, ellipse, rod-like and coralloid, and the color appearances on the surface of the nodules were light yellow, black-brown, brown or black. 147 rhizobia strains were isolated, identified and preserved from the living nodules of 38 NfLTS. This investigation showed that there were rich resources of both NfLTS that can be developed as the multipurpose tree species and rhizobia or strains in Jingdong County and in other south-subtropical or tropical regions of Yunnan Province, which could be utilized for both scientific research and development purposes.

关 键 词：豆科固氮树种 根瘤 根瘤菌菌株 资源 云南景东县 

分 类 号：S324[农业科学—作物遗传育种]