Rhizosphere effect has no effect on marker genes related to autotrophic CO2 fixation in paddy soils?
文献类型：期刊论文
| 作者 | Xiao, Ke-Qing ; Nie, San-An ; Bao, Peng ; Wang, Feng-Hua ; Bao, Qiong-Li ; Zhu, Yong-Guan |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2014 |
| 卷号 | 14期号:6页码:1082-1087 |
| 关键词 | CO2 fixation Marker genes Paddy soil Rhizosphere effect |
| ISSN号 | 1439-0108 |
| 中文摘要 | Purpose The rhizosphere is a hotspot for microbial activities as well as microbial ecology studies. This study aimed to explore the "rhizosphere effect" on marker genes of CO2 fixation autotrophic microorganisms. Materials and methods Microcosm experiments were conducted using two different types of paddy soil, planted with rice and added with urea. At tillering and ripening stages, bulk and rhizosphere soils were sampled separately for DNA extraction and quantitative PCR analyses. Results and discussion Six marker genes (cbbLG, cbbLR, cbbM, aclB, oorA, accA) of three autotrophic pathways (the Calvin cycle, the reductive tricarboxylic acid cycle, and the 4-hydroxybutyrate cycle) were detected, suggesting their pervasiveness in paddy soil. Redundancy analysis and variation partitioning based on partial redundancy analysis revealed higher contributions of growth stage (explaining 37 %) and soil type (explaining 19 %) on the variation of these genes, lower but significant impact of rhizosphere effect (explaining 12 %), and no significant effect of urea addition (P>0.05). Conclusions These results suggested that the composition of CO2 fixation autotrophic microorganisms in the paddy soil was subject to combined actions of soil type and growth stage as well as rhizosphere effect. |
| WOS记录号 | WOS:000336080800007 |
| 公开日期 | 2015-03-23 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9224]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Xiao, Ke-Qing,Nie, San-An,Bao, Peng,et al. Rhizosphere effect has no effect on marker genes related to autotrophic CO2 fixation in paddy soils?[J]. JOURNAL OF SOILS AND SEDIMENTS,2014,14(6):1082-1087. |
| APA | Xiao, Ke-Qing,Nie, San-An,Bao, Peng,Wang, Feng-Hua,Bao, Qiong-Li,&Zhu, Yong-Guan.(2014).Rhizosphere effect has no effect on marker genes related to autotrophic CO2 fixation in paddy soils?.JOURNAL OF SOILS AND SEDIMENTS,14(6),1082-1087. |
| MLA | Xiao, Ke-Qing,et al."Rhizosphere effect has no effect on marker genes related to autotrophic CO2 fixation in paddy soils?".JOURNAL OF SOILS AND SEDIMENTS 14.6(2014):1082-1087. |
入库方式： OAI收割
来源：生态环境研究中心
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