Chen Lingyun, Han Haifeng, Wang Chunhui, Warren Alan, Ning Yingzhi
College of Life Science, Northwest Normal University, Lanzhou 730070, China.
Department of Life Sciences, Natural History Museum, London SW7 5BD, UK.
Microorganisms. 2023 Oct 8;11(10):2510. doi: 10.3390/microorganisms11102510.
The northeastern edge of the Tibetan Plateau exhibits diverse climate and landform variations, and has experienced substantial recent environmental changes, which may significantly impact local agricultural practices. Understanding the microeukaryote community structure within agricultural soils is crucial for finding out the biological responses to such changes and may guide future agricultural practices. In this study, we employed high-throughput amplicon sequencing to examine 29 agricultural soil samples from seven research areas around the northeastern edge of the Tibetan Plateau. The findings revealed that the predominant biological communities in these soils were characterized by a high abundance of Alveolata, Amoebozoa, and Rhizaria. Ascomycota displayed the highest relative abundance among fungal communities. Moreover, notable distinctions in microeukaryote community composition were observed among the study sites. Co-occurrence network analysis highlighted interactions between the biological communities. Furthermore, our results elucidated that deterministic and stochastic processes exerted diverse influences on the distribution of protozoan and fungal communities. This study provides valuable insight into the microeukaryote structure in the agricultural soils of the northeastern edge of the Tibetan Plateau, shedding light on the intricate relationships between environmental factors, microeukaryote communities, and agricultural productivity.
青藏高原东北边缘呈现出多样的气候和地形变化，且近期经历了显著的环境变化，这可能会对当地农业生产产生重大影响。了解农业土壤中的微型真核生物群落结构对于找出生物对此类变化的响应至关重要，并且可能会指导未来的农业生产。在本研究中，我们采用高通量扩增子测序技术，对青藏高原东北边缘七个研究区域的29个农业土壤样本进行了检测。研究结果显示，这些土壤中的主要生物群落具有高丰度的囊泡虫类、变形虫类和根足虫类。子囊菌门在真菌群落中相对丰度最高。此外，在研究地点之间观察到微型真核生物群落组成存在显著差异。共现网络分析突出了生物群落之间的相互作用。此外，我们的结果表明，确定性和随机性过程对原生动物和真菌群落的分布产生了不同的影响。本研究为青藏高原东北边缘农业土壤中的微型真核生物结构提供了有价值的见解，揭示了环境因素、微型真核生物群落和农业生产力之间的复杂关系。
