Journal Article

Plant Species–Driven Distribution of Individual Clades of Comammox Nitrospira in a Subtropical Estuarine Wetland

Yang, Ping, Hu, Hang-Wei, He, Ji-Zheng, He, Zi-Yang, Lin, Yongxin, Wan, Song, Feng, Mengmeng, Ye, Guiping

2023

Overview

Plant species play a crucial role in mediating the activity and community structure of soil microbiomes through differential inputs of litter and rhizosphere exudates, but we have a poor understanding of how plant species influence comammox Nitrospira , a newly discovered ammonia oxidizer with pivotal functionality. Here, we investigate the abundance, diversity, and community structure of comammox Nitrospira underneath five plant species and a bare tidal flat at three soil depths in a subtropical estuarine wetland. Plant species played a critical role in driving the distribution of individual clades of comammox Nitrospira , explaining 59.3% of the variation of community structure. Clade A.1 was widely detected in all samples, while clades A.2.1, A.2.2, A.3 and B showed plant species-dependent distribution patterns. Compared with the native species Cyperus malaccensis , the invasion of Spartina alterniflora increased the network complexity and changed the community structure of comammox Nitrospira , while the invasive effects from Kandelia obovata and Phragmites australis were relatively weak. Soil depths significantly influenced the community structure of comammox Nitrospira , but the effect was much weaker than that from plant species. Altogether, our results highlight the previously unrecognized critical role of plant species in driving the distribution of comammox Nitrospira in a subtropical estuarine wetland.

• Publisher: Springer US,Springer Nature B.V
• Subject: Ammonia / Aquatic plants / Bacteria / Biomedical and Life Sciences / Brackishwater environment / Community structure / Cyperus malaccensis / Distribution / Distribution patterns / Ecology / Estuaries / Exudates / Flowers & plants / Freshwater plants / Geoecology/Natural Processes / Geographical distribution / Indigenous species / Invasive species / Kandelia / Life Sciences / Marshes / Microbial Ecology / Microbiology / Microbiomes / Native organisms / Nature Conservation / Nitrification / Nitrospira / oxidants / Oxidation-Reduction / Oxidizing agents / Phragmites australis / Plant species / Plants / Poaceae / Rhizosphere / Soil / Soil - chemistry / Soil depth / Soil Microbiology / Soil microorganisms / Soil structure / Soils / Spartina alterniflora / Tidal flats / Water Quality/Water Pollution / Wetlands