Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s00374-014-0935-6 |
Bacterial community structure and detection of putative plant growth-promoting rhizobacteria associated with plants grown in Chilean agro-ecosystems and undisturbed ecosystems | |
Jorquera, Milko A.1; Inostroza, Nitza G.1; Lagos, Lorena M.2; Barra, Patricio J.2; Marileo, Luis G.2; Rilling, Joaquin I.2; Campos, Daniela C.1; Crowley, David E.3; Richardson, Alan E.4; Mora, Maria L.1 | |
通讯作者 | Jorquera, Milko A. |
来源期刊 | BIOLOGY AND FERTILITY OF SOILS
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ISSN | 0178-2762 |
EISSN | 1432-0789 |
出版年 | 2014 |
卷号 | 50期号:7页码:1141-1153 |
英文摘要 | Soil microorganisms with phytase- and 1-aminocyclopropane-1-carboxylate (ACC) deaminase activities are widely studied as plant growth-promoting rhizobacteria (PGPR). Here, we explored the bacterial community structure and occurrence of putative PGPR in plants grown in agro-ecosystems and undisturbed ecosystems from northern, central, and southern Chile. Total rhizobacterial community structure was evaluated by denaturing gradient gel electrophoresis, and dominant bands present in diverse ecosystems were sequenced. Significant differences in total bacterial communities were shown with some bacterial orders (Enterobacteriales, Actinomycetales, and Rhizobiales) being highly similar to both ecosystems. Twenty-nine putative PGPR, showing phytate- and ACC-degrading activities and production of auxin, were selected from across the sites. Based on 16S rRNA gene sequencing, the putative PGPR were characterized as Enterobacteriales (Enterobacter, Serratia, Pantoea, Rahnella, Leclercia), Pseudomonas, and Bacillus, consistent with previously reported PGPR and endophytic bacteria. Beta-propeller phytase genes with similarity to Bacillus were also identified. PGPR from agro-ecosystems appeared to show higher auxin production compared to those from undisturbed ecosystems. This study demonstrates that putative PGPR are widely distributed across Chilean soils. Further understanding of their contribution to the growth and adaptation of plant hosts to local soil conditions may provide opportunity for development of new PGPR in Chilean agriculture. |
英文关键词 | 1-Aminocyclopropane-1-carboxylate deaminase Auxin Phytase Plant growth-promoting rhizobacteria Rhizobacterial community |
类型 | Article |
语种 | 英语 |
国家 | Chile ; USA ; Australia |
收录类别 | SCI-E |
WOS记录号 | WOS:000342226600013 |
WOS关键词 | SOIL MICROBIAL COMMUNITIES ; ACC-DEAMINASE ; CONFER RESISTANCE ; ATACAMA DESERT ; RHIZOSPHERE ; DIVERSITY ; PHYTASE ; GENE ; PHOSPHORUS ; STRAIN |
WOS类目 | Soil Science |
WOS研究方向 | Agriculture |
来源机构 | Commonwealth Scientific and Industrial Research Organisation |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/181113 |
作者单位 | 1.Univ La Frontera, Sci & Technol Bioresource Nucleus BIOREN, Temuco, Chile; 2.Univ La Frontera, Programa Doctorado Ciencias Recursos Nat, Temuco, Chile; 3.Univ Calif Riverside, Dept Environm Sci, Riverside, CA 92521 USA; 4.CSIRO Plant Ind, Canberra, ACT 2601, Australia |
推荐引用方式 GB/T 7714 | Jorquera, Milko A.,Inostroza, Nitza G.,Lagos, Lorena M.,et al. Bacterial community structure and detection of putative plant growth-promoting rhizobacteria associated with plants grown in Chilean agro-ecosystems and undisturbed ecosystems[J]. Commonwealth Scientific and Industrial Research Organisation,2014,50(7):1141-1153. |
APA | Jorquera, Milko A..,Inostroza, Nitza G..,Lagos, Lorena M..,Barra, Patricio J..,Marileo, Luis G..,...&Mora, Maria L..(2014).Bacterial community structure and detection of putative plant growth-promoting rhizobacteria associated with plants grown in Chilean agro-ecosystems and undisturbed ecosystems.BIOLOGY AND FERTILITY OF SOILS,50(7),1141-1153. |
MLA | Jorquera, Milko A.,et al."Bacterial community structure and detection of putative plant growth-promoting rhizobacteria associated with plants grown in Chilean agro-ecosystems and undisturbed ecosystems".BIOLOGY AND FERTILITY OF SOILS 50.7(2014):1141-1153. |
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