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青藏高原矿区复垦草地的土壤真菌群落因不同方面而有所差异。

Soil fungal communities varied across aspects of restored grassland in former mining areas of the Qinghai-Tibet Plateau.

机构信息

College of Agriculture and Animal Husbandry, Qinghai University, Xining, China.

Qinghai Province Grassland Improvement Experiment Station, Xining, China.

出版信息

PLoS One. 2024 Mar 26;19(3):e0295019. doi: 10.1371/journal.pone.0295019. eCollection 2024.

DOI:10.1371/journal.pone.0295019
PMID:38530822
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10965082/
Abstract

To determine whether different aspects lead to a heterogeneous distribution of soil fungi, we investigated artificially established alpine grasslands in the Muli mining area in the Qinghai-Tibet Plateau. Employing high-throughput sequencing techniques, we analyzed the composition, diversity, and function of soil fungal communities across various aspects (flat, East-facing, South-facing, West-facing, North-facing). We also examined their relationships with environmental factors. Soil fungal communities of restored alpine grasslands differed significantly across aspects in terms of the dominant phyla, classes and species level. Compared with No aspect, the Shannon index of fungi respectively decreased by 2.99%, 19.32%, 19.37% and 10.56% for East aspect, South aspect, West aspect and North aspect, respectively, and the Chao1 index of fungi respectively decreased by-2.44%, 35.50%, 42.15% and 3.21%, respectively. A total of 22 different types of fungi were identified in the study area. Predictive analysis, based on PICRUSt2, indicated that the primary functions of the fungal communities across different aspects were aerobic respiration I (cytochrome c) and aerobic respiration II (cytochrome c). Among the environmental variables, total phosphorus (P) and total nitrogen (N) were the principal factors influencing the fungal community composition.In conclusion, aspect plays a significant role in shaping the composition of fungal communities and also affects their overall diversity.

摘要

为了确定不同的因素是否导致土壤真菌呈不均匀分布，我们调查了青藏高原木里矿区人工建立的高山草地。我们采用高通量测序技术，分析了不同方面（平地、东坡、南坡、西坡、北坡）的土壤真菌群落的组成、多样性和功能。我们还研究了它们与环境因素的关系。恢复后的高山草地的土壤真菌群落在各个方面的优势门、纲和种水平上都有显著差异。与无方面相比，东、南、西、北方面的真菌 Shannon 指数分别下降了 2.99%、19.32%、19.37%和 10.56%，真菌 Chao1 指数分别下降了-2.44%、35.50%、42.15%和 3.21%。在研究区域共鉴定出 22 种不同类型的真菌。基于 PICRUSt2 的预测分析表明，不同方面的真菌群落的主要功能是有氧呼吸 I（细胞色素 c）和有氧呼吸 II（细胞色素 c）。在环境变量中，总磷（P）和总氮（N）是影响真菌群落组成的主要因素。

总之，方面在塑造真菌群落组成方面起着重要作用，也影响它们的整体多样性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/804954002b49/pone.0295019.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/5cecac246857/pone.0295019.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/11ee7d8ef912/pone.0295019.g002.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/328a75d1a9ac/pone.0295019.g004.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/804954002b49/pone.0295019.g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/5cecac246857/pone.0295019.g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/11ee7d8ef912/pone.0295019.g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/a5cf02effdb1/pone.0295019.g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/328a75d1a9ac/pone.0295019.g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/bb7229e945cc/pone.0295019.g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1072/10965082/804954002b49/pone.0295019.g006.jpg

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Zoning of Ecological Restoration in the Qilian Mountain Area, China.中国祁连山地区生态恢复的分区。
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Nutrients available in the soil regulate the changes of soil microbial community alongside degradation of alpine meadows in the northeast of the Qinghai-Tibet Plateau.
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Dynamics of Soil Bacterial and Fungal Communities During the Secondary Succession Following Swidden Agriculture IN Lowland Forests.低地森林刀耕火种后次生演替过程中土壤细菌和真菌群落的动态变化
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