Characteristics of the rhizosphere and phyllosphere microbial community of three submerged plants in the dragon-shaped water system of Beijing.

Xiaodong Liu; Haizhen Zhu; Minzhi Jiang; Xuejun WU; Chengying Jiang; Shuang-jiang Liu

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Characteristics of the rhizosphere and phyllosphere microbial community of three submerged plants in the dragon-shaped water system of Beijing.

Author: Xiaodong LIU ¹ ; Haizhen ZHU ¹ ; Minzhi JIANG ² ; Xuejun WU ³ ; Chengying JIANG ¹ ; Shuang-Jiang LIU ¹
Author Information

1. State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Acadamy of Sciences, Beijing 100101, China.
2. State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, Shandong, China.
3. I & Earth Ecology Environment Co., Ltd, Beijing 100101, China.
Publication Type:Journal Article
Keywords: constructed wetland; denitrification; dragon-shaped water system; phyllosphere microbes; rhizosphere microbes; submerged plants
MeSH: Beijing; Hydrocharitaceae; Microbiota; Rhizosphere; Water
From: Chinese Journal of Biotechnology 2021;37(10):3663-3674
CountryChina
Language:Chinese
Abstract: Aquatic plants and the epiphytic microorganisms are important contributors to the purification of constructed wetlands. Taking the dragon-shaped water system of Beijing Olympic Park as a model, this study analyzed the structure and function of the microbial communities reside the sediment, the water body and the rhizosphere and phyllosphere of three submerged plants-Vallisneria natans, Myriophyllum verticillatum, and Potamogeton pectinatus using high-throughput sequencing technology. The results showed that the microbial diversity from the highest to the lowest were samples from sediment, plant rhizosphere, plant phyllosphere and water. The microbial diversity of plant phyllosphere samples were significantly higher than those of the water body. LEfSe analysis showed that different habitats enriched different microbial groups. The sediments mainly enriched anaerobic microbes, while the water body and the phyllosphere of plants mainly enriched aerobic microbes, and the rhizosphere of plants had the both. Functional prediction analysis showed that the abundance of denitrification marker genes in phyllosphere samples was higher than that in samples from rhizosphere, sediment and water body, and the abundance of denitrification marker genes in phyllosphere samples of M. verticillatum and P. pectinatus was higher than that of V. natans. This study could serve as a guidance for the selection of submerged plants and functional microorganisms for constructed wetlands.