Xie Fei, Ma Anzhou, Zhou Hanchang, Liang Yu, Yin Jun, Ma Ke, Zhuang Xuliang, Zhuang Guoqiang
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China.
Microorganisms. 2020 Apr 27;8(5):632. doi: 10.3390/microorganisms8050632.
The biodiversity of fungi, which are extremely important in maintaining the ecosystem balance in alpine lakeside wetlands, has not been fully studied. In this study, we investigated the fungal communities of three lakeside wetlands from different altitudes in the Qinghai-Tibet Plateau and its edge. The results showed that the fungi of the alpine lakeside wetland had higher species diversity. Functional annotation of fungi by FUNGild software showed that saprophytic fungi were the most abundant type in all three wetlands. Further analysis of the microbial phylogenetic molecular ecological network (pMEN) showed that saprophytic fungi are important species in the three wetland fungal networks, while symbiotic fungi and pathotrophic fungi have different roles in the fungal networks in different wetlands. Community diversity was high in all three lakeside wetlands, but there were significant differences in the composition, function and network structure of the fungal communities. Contemporary environmental conditions (soil properties) and historical contingencies (geographic sampling location) jointly determine fungi community diversity in this study. These results expand our knowledge of fungal biodiversity in the alpine lakeside wetlands.
真菌在维持高山湖滨湿地生态系统平衡方面极为重要，但其生物多样性尚未得到充分研究。在本研究中，我们调查了青藏高原及其边缘不同海拔的三个湖滨湿地的真菌群落。结果表明，高山湖滨湿地的真菌具有较高的物种多样性。通过FUNGild软件对真菌进行功能注释表明，腐生真菌是所有三个湿地中最丰富的类型。对微生物系统发育分子生态网络（pMEN）的进一步分析表明，腐生真菌是三个湿地真菌网络中的重要物种，而共生真菌和致病真菌在不同湿地的真菌网络中具有不同作用。所有三个湖滨湿地的群落多样性都很高，但真菌群落的组成、功能和网络结构存在显著差异。当代环境条件（土壤性质）和历史偶然性（地理采样位置）共同决定了本研究中的真菌群落多样性。这些结果扩展了我们对高山湖滨湿地真菌生物多样性的认识。
