Evidence of endophytic nitrogen fixation as a potential mechanism supporting colonization of non-nodulating pioneer plants on a glacial foreland
文献类型：期刊论文
| 作者 | Sun, Shouqin1; DeLuca, Thomas H.2; Zhang, Jun3,4; Wang, Genxu1; Sun, Xiangyang1; Hu, Zhaoyong1; Wang, Wenzi5; Zhang, Wei6 |
| 刊名 | BIOLOGY AND FERTILITY OF SOILS
 |
| 出版日期 | 2022-04-13 |
| 页码 | 13 |
| ISSN号 | 0178-2762 |
| 关键词 | Dinitrogen fixation Endophytic diazotrophic bacteria Glacial till Non-nodulating pioneer plants Acetylene reduction assay N-15(2) gas incorporation |
| DOI | 10.1007/s00374-022-01640-1 |
| 通讯作者 | Wang, Genxu(wanggx@scu.edu.cn) |
| 英文摘要 | The ability of non-nodulating pioneer plants on newly exposed glacial till to obtain atmospheric N-2 was investigated using both acetylene reduction assay (ARA) and N-15(2) gas incorporation methods. Plant tissues were also examined for the presence of endophytic diazotrophic bacteria using high-throughput nifH amplification sequencing. Both ARA and N-15(2) gas incorporation demonstrated that non-nodulating pioneer plants can obtain atmospheric N-2, but the amount was highly variable depending on the plant organ, with clearly higher values in leaves relative to twigs and roots. High-throughput amplification sequencing of nifH genes indicated that a great variety of diazotrophic communities developed in pioneer plant tissues under primary succession. The N-2 fixation rate (based on both N-15(2) incorporation and ARA) was not directly linked to the abundance of any specific diazotrophs, but was correlated with the Chao1 index and the number of observed species, suggesting that different diazotrophs jointly accounted for N-2 fixation activity. Our results highlight that non-nodulating pioneer plants may acquire N through endophytic N-2-fixing bacteria as a supplement for other potential N sources in oligotrophic environments in early stages of primary succession following glacier retreat. |
| WOS关键词 | PRIMARY SUCCESSION ; LODGEPOLE PINE ; SYMBIOTIC EFFECTIVENESS ; DIAZOTROPHIC BACTERIA ; ACETYLENE-REDUCTION ; BRITISH-COLUMBIA ; IDENTIFICATION ; TREES ; BAY ; ACCUMULATION |
| 资助项目 | Alpine Ecosystem Observation and Experiment Station of Mt. Gongga, CAS. ; National Natural Science Foundation of China[41877347] ; Sichuan Science and Technology Program[2020JDJQ0004] |
| WOS研究方向 | Agriculture |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000783459300002 |
| 资助机构 | Alpine Ecosystem Observation and Experiment Station of Mt. Gongga, CAS. ; National Natural Science Foundation of China ; Sichuan Science and Technology Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/174757]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Genxu |
| 作者单位 | 1.Sichuan Univ, Coll Water Resource & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China 2.Oregon State Univ, Coll Forestry, Corvallis, OR 97331 USA 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 5.Chinese Acad Sci, Inst Mt Hazards & Environm, South Renmin Rd,Block 4, Chengdu 610041, Peoples R China 6.Plant Protect Stn Sichuan Agr & Rural Bur, Chengdu 61041, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Shouqin,DeLuca, Thomas H.,Zhang, Jun,et al. Evidence of endophytic nitrogen fixation as a potential mechanism supporting colonization of non-nodulating pioneer plants on a glacial foreland[J]. BIOLOGY AND FERTILITY OF SOILS,2022:13. |
| APA | Sun, Shouqin.,DeLuca, Thomas H..,Zhang, Jun.,Wang, Genxu.,Sun, Xiangyang.,...&Zhang, Wei.(2022).Evidence of endophytic nitrogen fixation as a potential mechanism supporting colonization of non-nodulating pioneer plants on a glacial foreland.BIOLOGY AND FERTILITY OF SOILS,13. |
| MLA | Sun, Shouqin,et al."Evidence of endophytic nitrogen fixation as a potential mechanism supporting colonization of non-nodulating pioneer plants on a glacial foreland".BIOLOGY AND FERTILITY OF SOILS (2022):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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