Community Composition, Symbiotic Patterns, and Influencing Factors of Planktonic Fungi in Urban Lakes of Nanchang

被引：0
|
作者：
Huang Y. [1 ,2 ]
Wang P. [1 ,2 ]
Ding M.-J. [1 ,2 ]
Huang G.-X. [1 ,2 ]
Zhang H. [1 ,2 ]
Nie M.-H. [1 ,2 ]
Gao P.-F. [1 ,2 ]
Ye S. [1 ,2 ]
机构：
[1] School of Geography and Environment, Jiangxi Normal University, Nanchang
[2] Key Laboratory of Poyang Lake Wetland and Watershed Research, Ministry of Education, Jiangxi Normal University, Nanchang
来源：
Huanjing Kexue/Environmental Science | 2023年 / 44卷 / 10期
关键词：
composition and diversity; environmental stresses; lakes of Nanchang; planktonic fungal communities; symbiotic patterns;
D O I：
10.13227/j.hjkx.202210191
中图分类号：
学科分类号：
摘要：
To investigate the characteristics of planktonic fungal communities in Nanchang lakes and the mechanism of environmental stress on planktonic fungal communities, surface water samples were collected from seven major urban lakes evenly distributed in different county-level districts of Nanchang in the dry (February and December), normal (April and October), and wet (June and August) seasons, respectively. The environmental stressors such as WT, DO, NH4+ -N, and N03~ -N were measured; the characteristics of planktonic fungal communities were studied using high-throughput sequencing; the symbiotic patterns of planktonic fungal communities were elucidated using network analysis and other methods; and the environmental stressors affecting the structure and symbiotic patterns of planktonic fungal communities were revealed. The results showed that (J) the planktonic fungal community composition in lakes of Nanchang varied significantly among seasons but not significantly among the lakes. WT, DO, pH, and NH4+ -N were the significant environmental stressors affecting the planktonic fungal community composition. (2) The dominant phyla of the planktonic fungal community were Chytridiomycota (9. 55%-33.14%), Basidiomycota (0.48%-4. 25%), and Aseomycota (1.29%-3.19%), and the sizes of the dominant phyla were in the following order; wet season > normal season > dry season. The relative abundance of Chytridiomycota was significantly higher in the wet season than that in the normal season and the dry season, the relative abundance of Basidiomycota was significantly lower in the dry season than that in the normal and wet seasons, and the difference in Aseomycota among seasons was not significant. (3) The stability size of the planktonic fungal community symbiosis network in lakes of Nanchang was in the following order: wet season > normal season > dry season. WT was the best environmental stressor affecting the planktonic fungal community symbiosis pattern. The study can provide theoretical basis for the comprehensive evaluation and management study of the lake and provide guidance for protecting the lake ecosystem in the middle and lower reaches of the Yangtze River. © 2023 Science Press. All rights reserved.
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页码：5556 / 5566
页数：10
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