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CC BY-NC-ND V4.0, Open Access
Journal article
Soil moisture is a primary driver of comammox Nitrospira abundance in New Zealand soils
The Science of the total environment, Vol.858(Pt. 2), Art. 159961
2023
Abstract
The objectives of this study were to investigate the abundance and community composition of comammox Nitrospira under: (i) pasture-based dairy farms from different regions, and (ii) different land uses from the same region and soil type. The results clearly showed that comammox Nitrospira were most abundant (3.0 × 106 copies) under the west coast dairy farm conditions, where they were also significantly more abundant than canonical ammonia oxidisers. This was also true in the Canterbury dairy farm. The six land uses investigated were pine monoculture, a long term no input ecological trial, sheep + beef and Dairy, both irrigated and non-irrigated. It was concluded that comammox Nitrospira was most abundant under the irrigated dairy farm (2.7 × 106 copies). Contrary to the current industry opinion, the relatively high abundance of comammox Nitrospira under fertile irrigated dairy land suggests that comammox Nitrospira found in terrestrial ecosystems may be copiotrophic. it was also determined that comammox Nitrospira was more abundant under irrigated land use than their non-irrigated counterparts, suggesting that soil moisture is a key environmental parameter influencing comammox abundance. Comammox abundance was also positively correlated with annual rainfall, further supporting this theory. Phylogenetic analysis of the comammox Nitrospira detected determined that 17 % of the comammox community belonged to a newly distinguished subclade, clade B.2. The remaining 83 % belonged to clade B.1. No sequences from clade A were found.
Details
- Title
- Soil moisture is a primary driver of comammox Nitrospira abundance in New Zealand soils
- Authors/Creators
- Chris Chisholm (Author) - Centre for Soil and Environmental Research, Lincoln University, Lincoln, 7647, Christchurch, New ZealandHong J. Di (Corresponding Author) - Centre for Soil and Environmental Research, Lincoln University, Lincoln, 7647, Christchurch, New ZealandKeith Cameron - Centre for Soil and Environmental Research, Lincoln University, Lincoln, 7647, Christchurch, New ZealandAndriy Podolyan - Centre for Soil and Environmental Research, Lincoln University, Lincoln, 7647, Christchurch, New ZealandAnish ShahLisa Hsu - Centre for Soil and Environmental Research, Lincoln University, Lincoln, 7647, Christchurch, New ZealandJupei Shen - Fujian Normal University, China
- Publication Details
- The Science of the total environment, Vol.858(Pt. 2), Art. 159961
- Publisher
- Elsevier B.V
- Identifiers
- 991005566668007891
- Copyright
- © 2022 The Authors.
- Murdoch Affiliation
- School of Agricultural Sciences
- Language
- English
- Resource Type
- Journal article
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