Microorganisms that participate in biochemical cycles in wetlands

Mellado, Macarena; Vera, Jeannette

doi:10.1139/cjm-2020-0336

Cited by 22 publications

(12 citation statements)

References 98 publications

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“…Bacteria (Proteobacteria, Chloroflexi, Nitrospirae, etc.) and archaea participate in the chemical cycle of wetland soil ( Mellado and Vera, 2021 ). Liu et al (2022) reported that the S and N cycles were significantly affected by wetland plant composition and coverage with the participation of bacteria.…”

Section: Discussionmentioning

confidence: 99%

Associations of soil bacterial diversity and function with plant diversity in Carex tussock wetland

Shi²,

Wei³

et al. 2023

Front. Microbiol.

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Some species of Carex can form tussocks, which are usually distributed in valleys and flood plains. The soil microbial community diversity and function of micro–habitats formed by tussocks are associated with plant diversity, and research on these associations can guide Carex tussock wetland restoration. In this study, we selected tussock wetlands dominated by Carex appendiculata, including natural wetlands (NW), artificially restored wetlands (ARW), and naturally restored wetlands (NRW), and investigated plant diversity. Soil samples were collected from the quadrats of each sample plot with the maximum (ma), median (me), and minimum (mi) plant Shannon index values, and high-throughput sequencing was used to analyze the bacterial community composition, diversity, and functions. The plant diversity indexes of neither ARW nor NRW significantly differed from that of NW, but the companion species in NRW were hygrophytes and mesophytes, in contrast to only hygrophytes serving as companion species in NW and ARW. The soil bacterial communities at the operational taxonomic unit level of the nine quadrats with different plant Shannon index values significantly (p < 0.01) differed. The relative abundances of the dominant phyla (Proteobacteria, Chloroflexi, and Bacteroidetes) and the dominant genera (Geobacter, Sideroxydans, and Clostridium except for unassigned genera) significantly (p < 0.05) differed under the different levels of plant diversity. The plant Shannon index, soil moisture content, total organic carbon, N, and P were significantly (p < 0.05 or p < 0.01) correlated with the bacterial Shannon index. The phylogenetic diversity of the bacterial community in NW was significantly (p < 0.0001) different from those in ARW and NRW, and that in ARW was also significantly (p < 0.05) different from that in NRW. The functional groups of bacterial communities associated with plant diversity. In the NWme, ARWme, and NRWme bacterial communities, the relative proportions of functional groups related to soil N cycle were higher, but those related to soil S and C cycles were lower. Considering the rehabilitation of both plant and microbial communities, the methods used for establishing the ARW are recommended for Carex tussock wetland restoration.

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Section: Discussionmentioning

confidence: 99%

Associations of soil bacterial diversity and function with plant diversity in Carex tussock wetland

Shi²,

Wei³

et al. 2023

Front. Microbiol.

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“…Microorganisms in FWs are also critical for maintaining the relative stability of the nitrogen cycle, and diverse microorganisms are an important player in driving nitrogen conversion and its cycling processes ( Mellado and Vera, 2021 ; Sheng et al, 2023 ). Microorganisms such as nitrogen-fixing bacteria and cyanobacteria can convert atmospheric N 2 into bioavailable forms such as ammonia and nitrate, supplying the wetland ecosystem with available nitrogen ( Bae et al, 2018 ).…”

Section: Impact Of Microbial Diversity On Functional Stability Of Fre...mentioning

confidence: 99%

Effects of biodiversity on functional stability of freshwater wetlands: a systematic review

Song,

Liang,

et al. 2024

Front. Microbiol.

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Freshwater wetlands are the wetland ecosystems surrounded by freshwater, which are at the interface of terrestrial and freshwater ecosystems, and are rich in ecological composition and function. Biodiversity in freshwater wetlands plays a key role in maintaining the stability of their habitat functions. Due to anthropogenic interference and global change, the biodiversity of freshwater wetlands decreases, which in turn destroys the habitat function of freshwater wetlands and leads to serious degradation of wetlands. An in-depth understanding of the effects of biodiversity on the stability of habitat function and its regulation in freshwater wetlands is crucial for wetland conservation. Therefore, this paper reviews the environmental drivers of habitat function stability in freshwater wetlands, explores the effects of plant diversity and microbial diversity on habitat function stability, reveals the impacts and mechanisms of habitat changes on biodiversity, and further proposes an outlook for freshwater wetland research. This paper provides an important reference for freshwater wetland conservation and its habitat function enhancement.

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“…29 Flooding or inundation is thought to be a reasonably common and important disturbance type in floodplain wetlands including those in semi-arid Australia. 11,30,31 Interestingly, Rayburg et al 31 have shown that semi-arid floodplain sites subject to an intermediate level of flood disturbance also have a greater level of diversity in soil properties than those sites subject to frequent flood disturbances.…”

Section: Taxonomic Diversitymentioning

confidence: 99%

“…8 Proteobacteria is also known to be the most abundant in natural as well as constructed wetlands. 11 Floodplain soil microbes are subject to varying wet and dry conditions. 4,9 Observational and experimental studies have been conducted to understand the association of the microbial community structure and function with varying wet and dry conditions in floodplain wetlands.…”

Section: Introductionmentioning

confidence: 99%

Impact of inundation on soil microbiology

Ralph,

Kobayashi

2023

Microbiol. Aust.

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Genetic sequencing as well as culture-based studies have revealed diverse aerobic and anaerobic microbes across a range of aquatic environments in floodplain wetlands. Hydrological conditions related to riverine inundation are a predominant factor determining the structure and function of soil bacterial communities in floodplain wetlands. Despite their complex mosaics of topography, landforms and aquatic habitats, some consistent response patterns are observed among soil bacterial communities with changing inundation patterns and history. Considering hydrological events and changes as a form of disturbance, Connell’s ‘intermediate disturbance hypothesis’ has been used to explain the observed bell-shaped response of soil microbial communities with varying hydrological conditions. Further application and testing of general ecological theories and hypotheses may help advance our understanding and predictive modelling capability for the dynamics of floodplain soil bacterial communities with changing hydrological conditions.

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Microorganisms that participate in biochemical cycles in wetlands

Cited by 22 publications

References 98 publications

Associations of soil bacterial diversity and function with plant diversity in Carex tussock wetland

Associations of soil bacterial diversity and function with plant diversity in Carex tussock wetland

Effects of biodiversity on functional stability of freshwater wetlands: a systematic review

Impact of inundation on soil microbiology

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