Diversity characterization of bacteria and fungi in water, sediments and biofilms from Songhua River in Northeast China

被引：3
作者：
Li M. [1 ,2 ,3 ,4 ]
Zhao T. [1 ]
Liang D. [1 ]
Dong D. [1 ]
Guo Z. [1 ]
Hua X. [1 ]
Zhong S. [1 ]
机构：
[1] Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun
[2] Gong Qing Institute of Science and Technology, Nanchang
[3] Jilin Agricultural Science and Technology University, Chang Chun
[4] Key Laboratory of Songliao Aquatic Environment Ministry of Education, School of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun
来源：
Chemosphere | 2023年 / 338卷
关键词：
Bacteria; Biofilms; Diversity; Fungi; Sediments; Water;
D O I：
10.1016/j.chemosphere.2023.139524
中图分类号：
学科分类号：
摘要：
Water, sediments, and biofilms are the typical microbial carriers in natural water environments. However, comparative analysis of the distribution of bacterial and fungal communities in different carriers within the same habitat is relatively lacking. Therefore, this study employed 16 S and ITS rRNA gene sequencing to identify bacterial and fungal community structures in water, sediments, and biofilm. The results show that (1) the OTUs numbers revealed that the bacterial abundance, at the levels of species, genus, and family, followed the order of sediments > water > biofilms, while the fungal abundance order was water > sediments > biofilms. In addition, bacteria were mainly present in sediments, while fungi were mainly present in water. (2) The α diversity index (Shannon, ACE, Simpson, and Chao1) order, for bacteria was: sediments > water > biofilms, indicating that the diversity and homogeneity of bacteria in sediments were relatively higher; for fungi was: water > sediments > biofilms, indicating that the diversity and abundance of fungi in water were high. (3) The core phylum of bacterial in the water, sediments, and biofilms was Cyanobacteria (31.3–46.1%) and Actinobacteria (27.6–36.1%); Proteobacteria (35.0–41.8%), Cyanobacteria (14.7–36.6%); and Proteobacteria (63.3–69.2%), respectively. (4) The mainly colonized fungal phyla in biofilms in the water, sediments, and biofilms were Basidiomycota (29.3–38.7%) and Ascomycota (16.2–27.7%); Zygomycota (13.1–17.5%), Basidiomycota (5.6–17.6%); and Zygomycota (23.8–44.2%). (5) There were significant species differences in bacterial and fungal communities in water, sediments, and biofilm by NMDS analysis. Findings are useful for guiding significance for the Biogeochemical cycle of elements, the environmental fate of pollutants, and the study of water ecosystems. © 2023
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