Composition, diversity, and source tracking of endophytic diazotrophs within Platycladus orientalis
文献类型：期刊论文
| 作者 | Zhang, Jun2,5; Zhang, Zongtian1,2; Du, Chenjun3; Li, Haisu4; Guan, Xinyao2; Wang, Pengtao2; Yu, Fei2 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2025-11-13 |
| 卷号 | N/A |
| 关键词 | Endophytic diazotrophs N-2-fixing bacteria Community composition Migration patterns Platycladus orientalis |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-025-08081-3 |
| 产权排序 | 2 |
| 文献子类 | Article ; Early Access |
| 英文摘要 | Aims Endophytic nitrogen (N) fixation represents a crucial N acquisition strategy for non-nodulating plants in N-limited ecosystems. However, fundamental aspects of endophytic diazotrophs, including their community structure, potential source, and inter-niche migration patterns, remain poorly characterised. Methods In this study, we investigated the community composition and diversity of endophytic diazotrophs within different tissues (leaf, twigs, and root) of Platycladus orientalis inhabiting rocky mountainous regions using Illumina Miseq sequencing of the nifH gene. Additionally, we analysed their seasonal variations (wet and dry season) and tissue-specific distribution patterns. Source tracking analysis was used to quantitatively evaluate the potential source and transmission pathways of these N-2-fixing bacteria. Results Endophytic diazotrophs were dominated by the class Alphaproteobacteria (49.4%-84.3%), with Bradyrhizobium and Skermanella being the predominant genera. The community composition of diazotrophs was significantly affected by the season (P = 0.001) and tissue type (P = 0.001). However, no statistically significant differences were observed in diazotroph diversity across seasons or tissue types (P > 0.05). Source tracking analysis revealed that the rhizosphere soil contributed 57.45% and 25.03% of the endophytic diazotrophs within the root and twig, respectively, whereas the leaf phyllosphere contributed relatively less (0.01%-18.12%). Furthermore, only a small proportion (7.09%-19.78%) of N-2-fixing bacteria migrated between the phyllosphere, leaf, and twigs. Conclusions These results highlight the differences in endophytic diazotroph community structure across seasons and tissue types, revealing their sources and migration patterns. Our findings may guide the development and utilisation of these microbial resources for N-2 fixation. |
| URL标识 | 查看原文 |
| WOS关键词 | SEASONAL-CHANGES ; GROWTH ; PLANTS ; COMMUNITIES ; CHEMISTRY ; BACTERIA ; HOST ; SOIL ; L. |
| WOS研究方向 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:001615707200001 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/217660]  |
| 专题 | 拉萨站高原生态系统研究中心_外文论文 |
| 通讯作者 | Li, Haisu; Yu, Fei |
| 作者单位 | 1.Puyang Field Sci Observat & Res Stn Yellow River W, Puyang 457000, Henan, Peoples R China; 2.Henan Normal Univ, Coll Life Sci, Xinxiang 453007, Peoples R China; 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 4.Anhui Agr Univ, Sch Hort, Anhui Prov Key Lab Hort Crop Qual Biol, Hefei 230036, Anhui, Peoples R China; 5.Henan Xiaolangdi Forest Ecosyst Natl Observat & Re, Jiyuan 454650, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Jun,Zhang, Zongtian,Du, Chenjun,et al. Composition, diversity, and source tracking of endophytic diazotrophs within Platycladus orientalis[J]. PLANT AND SOIL,2025,N/A. |
| APA | Zhang, Jun.,Zhang, Zongtian.,Du, Chenjun.,Li, Haisu.,Guan, Xinyao.,...&Yu, Fei.(2025).Composition, diversity, and source tracking of endophytic diazotrophs within Platycladus orientalis.PLANT AND SOIL,N/A. |
| MLA | Zhang, Jun,et al."Composition, diversity, and source tracking of endophytic diazotrophs within Platycladus orientalis".PLANT AND SOIL N/A(2025). |
入库方式： OAI收割
来源：地理科学与资源研究所
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