Potential seed germination-enhancing plant growth-promoting rhizobacteria for restoration of Pinus chiapensis ecosystems  

作　　者：Cristina Domínguez-Castillo Julia María Alatorre-Cruz Dolores Castañeda-Antonio Jose Antonio Munive Xianwu Guo Jesús Francisco López-Olguín Luis Ernesto Fuentes-Ramírez Ricardo Carreño-López 

机构地区：[1]Centro de Investigaciones en Ciencias Microbiológicas,Instituto de Ciencias,Benemérita Universidad Autónoma de Puebla,Puebla,México [2]Universidad Autónoma de Querétaro,Querétaro,México [3]Centro de Biotecnología Genómica,Instituto Politécnico Nacional,Reynosa,Tamaulipas,México

出　　处：《Journal of Forestry Research》2021年第5期2143-2153,共11页林业研究（英文版）

基　　金：supported by SEP,Grant DSA/103.5/15/10976 and VIEP-BUAP,Grant 20 Sub-Program。

摘　　要：Rhizosphere soil samples of three Pinus chiapensis sites were analyzed for their physicochemical properties,soil bacteria isolated and screened in vitro for growthpromoting abilities.Nine isolates that showed promise were identified to five genera Dyella,Luteimonas,Euterobacter,Paraburkholderia and Bacillus based on the sequences of16 S rRNA gene.All the strains were isolated from nondisturbed stands.These bacteria significantly decreased germination time and increased sprout sizes.Indole acetic acid and gibberellin production and phosphate solubilisation were detected.Results indicate that these biochemicals could be essential for P.chiapensis distribution and suggest the possibility that PGPR inoculation on P.chiapensis seeds prior to planting could improve germination and possibly seedling development.

关 键 词：Pinus chiapensis Plant growth-promoting rhizobacteria Dyella Luteimonas ENTEROBACTER 

分 类 号：S714.3[农业科学—林学]