Responses of Active Ammonia Oxidizers and Nitrification Activity in Eutrophic Lake Sediments to Nitrogen and Temperature

Wu, Lianghuan; Han, Cheng; Zhu, Guangwei; Zhong, Wang

doi:10.1128/aem.00258-19

Cited by 17 publications

(12 citation statements)

References 58 publications

(80 reference statements)

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“…Contrary to findings of most studies on low-elevation rivers (16), average AOB amoA gene abundance was significantly higher than that of AOA in this study. In the slightly eutrophic and cold lake sediments (10°C), AOB amoA gene abundance has also been found to be greater than that of AOA (30).…”

Section: Discussionmentioning

confidence: 95%

Ammonia Oxidizers in High-Elevation Rivers of the Qinghai-Tibet Plateau Display Distinctive Distribution Patterns

Zhang

Xia

et al. 2019

Appl Environ Microbiol

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Ammonia-oxidizing bacteria (AOB) and archaea (AOA) as well as comammox catalyze ammonia oxidation. The distribution and biogeography of these ammonia oxidizers might be distinctive in high-elevation rivers, which are generally characterized by low temperature and low ammonium concentration but strong solar radiation; however, these characteristics have rarely been documented. This study explored the abundance, community, and activity of ammonia oxidizers in the overlying water of five rivers in the Qinghai-Tibet Plateau (QTP). Potential nitrification rates in these rivers ranged from 5.4 to 38.4 nmol N liter−1 h−1, and they were significantly correlated with ammonium concentration rather than temperature. Comammox were found in 25 of the total 28 samples, and they outnumbered AOA in three samples. Contrary to most studied low-elevation rivers, average AOB amoA gene abundance was significantly higher than that of AOA, and AOB/AOA ratios increased with decreasing water temperature. The Simpson index of the AOA community increased with elevation (P < 0.05), and AOA and AOB communities exhibited high dissimilarities with low-elevation rivers. Cold-adapted (Nitrosospira amoA cluster 1, 33.6%) and oligotrophic (Nitrosomonas amoA cluster 6a, 31.7%) groups accounted for large proportions in the AOB community. Suspended sediment concentration exerted significant effects on ammonia oxidizer abundance (r > 0.56), and owing to their elevational variations in source and concentration, suspended sediments facilitated distance-decay patterns for AOA and AOB community similarities. This study demonstrates distinctive biogeography and distribution patterns for ammonia oxidizers in high-elevation rivers of the QTP. Extensive research should be conducted to explore the role of these microbes in the nitrogen cycle of this zone. IMPORTANCE Ammonia-oxidizing archaea (AOA) and bacteria (AOB) as well as comammox contribute to ammonia oxidation, which plays significant roles in riverine nitrogen cycle and N2O production. Source regions of numerous rivers in the world lie in high-elevation zones, but the abundance, community, and activity of ammonia oxidizers in rivers in high-elevation regions have rarely been investigated. This study revealed distinctive distribution patterns and community structures for ammonia oxidizers in five high-elevation rivers of the Qinghai-Tibet Plateau, and the individual and combined effects of low temperature, low nutrients, and strong solar radiation on ammonia oxidizers were elucidated. The findings of this study are helpful to broaden our knowledge on the biogeography and distribution pattern of ammonia oxidizers in river systems. Moreover, this study provides some implications to predict the performance of ammonia oxidizers in high-elevation rivers and its variations under global climate warming.

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Section: Discussionmentioning

confidence: 95%

Ammonia Oxidizers in High-Elevation Rivers of the Qinghai-Tibet Plateau Display Distinctive Distribution Patterns

Zhang

Xia

et al. 2019

Appl Environ Microbiol

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“…The ammonia compound content in the groundwater sample was relatively high compared to the ammonia content in natural waterways (less than 0.1 mg/L). This indicates organic pollution from domestic waste because, when a closer look is taken, the groundwater sampling location was in the vicinity of a human settlement that produced organic wastes like domestic one [23].…”

Section: A Preliminary Testmentioning

confidence: 99%

“…The results of the analysis of the nutritional contents of the groundwater [18], including carbon (C), nitrogen (N), phosphor (P), and potassium (K) (Table 2). Plants highly demand major nutrients like C, N, P, and K. The groundwater availability in the groundwater indicates that aquatic plants will grow well and support the phytoremediation process [23].…”

Section: A Preliminary Testmentioning

confidence: 99%

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The Effect of Heavy Metal Lead (Pb) on the Growth of Ammonia-Degrading Bacteria and Physical Changes of Eichhornia crassipes in Groundwater Phytoremediation

Fahruddin

Samawi

Tuwo

et al. 2021

Int. J. Adv. Sci. Eng. Inf. Technol.

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Water hyacinth (Eichhornia crassipes) has been extensively used for heavy metal phytoremediation and stimulating microorganism growth in the effort to break down organic pollutants by the exudate secreted by the plant. This study aims to figure out the growth of the ammonia-degrading bacteria population and figure out the physical changes occurring in water hyacinth during the Pb phytoremediation process. The phytoremediation method was performed under the batch system with the treatments: P1 with water hyacinth for groundwater with 2 ppm of Pb; P2 with water hyacinth for groundwater with 4 ppm Pb; and P0 with no water hyacinth and Pb addition. Observations include the growth of ammonia-degrading bacteria, ammonia concentration, Pb analysis, observation of physical changes, and measurement of biomass of the water hyacinth. Results show that the nitrifying bacteria population growth rate was higher in the 2 ppm Pb treatment than in the 4 ppm Pb treatment. The implication was that there occurred a higher ammonia concentration decrease in P1 by 0.43 mg/L from the initial concentration of 1.21 mg/L. As for the water hyacinth's physical changes, a lower growth rate happened to the 4 ppm Pb treatment, resulted in lower biomass of 75.46 g in the said treatment than in the 2 ppm Pb (79.00 g). The use of water hyacinth in phytoremediation also prompted the bacterial growth to break down organic waste, but high concentrations of heavy metals will influence the growth of the aquatic plant, water hyacinth.

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“…Shen, Ouyang, Zhu, and Trimmer (2019b) found that anaerobic ammonium oxidation (anammox) and nitrite-dependent anaerobic methane oxidation (n-damo) in permeable riverbed sediments were spatially separated, potentially removing any competition for nitrite. Nitrogen input and temperature change impacted the activities of ammonia-oxidizing archaea and bacteria in eutrophic sediments from Taihu Lake, China (Wu, Han, Zhu, & Zhong, 2019).…”

Section: Annual Literature Reviewmentioning

confidence: 99%

Substratum‐associated microbiota

Furey

Lee

Clemans

2020

Water Environment Research

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Highlights of new, interesting, and emerging research findings on substratum-associated microbiota covered from a survey of 2019 literature from primarily freshwaters provide insight into research trends of interest to the Water Environment Federation and others interested in benthic, aquatic environments. Coverage of topics on bottom-associated or attached algae and cyanobacteria, though not comprehensive, includes new methods, taxa new-to-science, nutrient dynamics, auto-and heterotrophic interactions, grazers, bioassessment, herbicides and other pollutants, metal contaminants, and nuisance, and bloom-forming and harmful algae. Coverage of bacteria, also not comprehensive, focuses on the ecology of benthic biofilms and microbial communities, along with the ecology of microbes like Caulobacter crescentus, Rhodobacter, and other freshwater microbial species. Bacterial topics covered also include metagenomics and metatranscriptomics, toxins and pollutants, bacterial pathogens and bacteriophages, and bacterial physiology. Readers may use this literature review to learn about or renew their interest in the recent advances and discoveries regarding substratum-associated microbiota. © 2020 Water Environment Federation • Practitioner points • This review of literature from 2019 on substratum-associated microbiota presents highlights of findings on algae, cyanobacteria, and bacteria from primarily freshwaters. • Coverage of algae and cyanobacteria includes findings on new methods, taxa new to science, nutrient dynamics, auto-and heterotrophic interactions, grazers, bioassessment, herbicides and other pollutants, metal contaminants, and nuisance, bloomforming and harmful algae. • Coverage of bacteria includes findings on ecology of benthic biofilms and microbial communities, the ecology of microbes, metagenomics and metatranscriptomics, toxins and pollutants, bacterial pathogens and bacteriophages, and bacterial physiology. • Highlights of new, noteworthy and emerging topics build on those from 2018 and will be of relevance to the Water Environment Federation and others interested in benthic, aquatic environments

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Responses of Active Ammonia Oxidizers and Nitrification Activity in Eutrophic Lake Sediments to Nitrogen and Temperature

Cited by 17 publications

References 58 publications

Ammonia Oxidizers in High-Elevation Rivers of the Qinghai-Tibet Plateau Display Distinctive Distribution Patterns

Ammonia Oxidizers in High-Elevation Rivers of the Qinghai-Tibet Plateau Display Distinctive Distribution Patterns

The Effect of Heavy Metal Lead (Pb) on the Growth of Ammonia-Degrading Bacteria and Physical Changes of Eichhornia crassipes in Groundwater Phytoremediation

Substratum‐associated microbiota

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