摘要
对12株植物根际促生菌(PGPR)进行促生功能(固氮、溶磷、分泌IAA)稳定性评价,选取促生功能稳定性良好的PGPR菌株,结合菌株形态学特征、主要生理生化特性以及分子特性进行鉴定。结果表明:Jm92、W5、PCRP-5、G、pwxp8、Lx191与Jx59共7株菌促生功能稳定性较好,可应用于后续微生物菌剂的开发;7株菌有1株属于短波单胞菌属(Brevunmdimonas),2株属于芽孢杆菌属(Bacillus),4株属于假单胞菌属(Pseudomonas)。
The functional stability(nitrogen fixation ability,phosphorus dissolving ability,IAA secreting ability)of 12 PGPR strains were evaluated.The strains with better functional stability were selected to identify in terms of morphological characteristics,main physiological and biochemical characteristics and molecular characteristics.The results showed that Jm92,W5,PCRP-5,G,pwxp8,Lx191 and Jx59 had better functional stability and could be applied to the further development of microbial agents.After identification,one strain was from Brevunmdimonas,two were from Bacillus and four were from Pseudomonas.
作者
柴晓虹
姚拓
李录山
韦雷飞
CHAI Xiao-hong;YAO Tuo;LI Lu-shan;WEI Lei-fei(College of Pratacultural Science,Gansu Agricultural University/Key Laboratory for Grassland Ecosystem of Ministry of Education/Pratacultural Engineering Laboratory of Gansu Province/Sino-U.S.Centers for Grazingland Ecosystem Sustainability,Lanzhou 730070,China;Academy of Agricultural and Forestry Sciences of Panzhihua City,Panzhihua 617061,China)
出处
《草原与草坪》
CAS
CSCD
2020年第5期68-75,共8页
Grassland and Turf
基金
兰州市科技计划项目(2019-1-76)。
