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Ali N, Tavoillot J, Martiny B, Fossati-Gaschignard O, Plas S, Dmowska E, Winiszewska G, Chapuis E, Rulliat E, Jimenez D, Granereau G, Barbier S, Héraud C, Gautheron N, Edel-Hermann V, Steinberg C, Mateille T. Legacy of plant-parasitic nematode communities from past ecosystems and shift by recent afforestation. Glob Ecol Conserv 2021. [DOI: 10.1016/j.gecco.2020.e01423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Jiang J, Yu D, Wang Y, Zhang X, Dong W, Zhang X, Guo F, Li Y, Zhang C, Yan G. Use of additives in composting informed by experience from agriculture: Effects of nitrogen fertilizer synergists on gaseous nitrogen emissions and corresponding genes (amoA and nirS). BIORESOURCE TECHNOLOGY 2021; 319:124127. [PMID: 32971331 DOI: 10.1016/j.biortech.2020.124127] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 09/05/2020] [Accepted: 09/12/2020] [Indexed: 06/11/2023]
Abstract
The effects of two nitrogen fertilizer synergists (urease inhibitor, UI; nitrification inhibitor, NI) on NH3 and N2O emissions and the successions of the amoA and nirS genes during composting were assessed. Results showed that the UI and UI + NI treatments reduced NH3 emissions by 26.3% and 24.3%, respectively, and N2O emissions were reduced by 63.9% for UI + NI treatment but were not reduced by UI. The addition of UI and NI significantly reduced the abundance of the nirS gene during thermophilic stage, while significantly increased that of the amoA gene during maturation stage. Crenarchaeota was the principal nitrifying archaeal phylum and was significantly affected by pH. Proteobacteria was the main denitrifying bacterial phylum, whose relative abundance was higher for UI + NI treatment than the other treatments. PICRUSt analysis showed that the addition of UI and NI inhibited enzymatic activity related to N transformation during thermophilic stage while enriching enzymatic activity during maturation phase.
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Affiliation(s)
- Jishao Jiang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China.
| | - Dou Yu
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Yang Wang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Xindan Zhang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Wei Dong
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Xiaofang Zhang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Fengqi Guo
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Yunbei Li
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Chunyan Zhang
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
| | - Guangxuan Yan
- School of Environment, Henan Key Laboratory for Environmental Pollution Control, Key Laboratory for Yellow River and Huai River Water Environmental Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, PR China
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Ding J, Ma M, Jiang X, Liu Y, Zhang J, Suo L, Wang L, Wei D, Li J. Effects of applying inorganic fertilizer and organic manure for 35 years on the structure and diversity of ammonia-oxidizing archaea communities in a Chinese Mollisols field. Microbiologyopen 2020; 9:e00942. [PMID: 31568679 PMCID: PMC6957403 DOI: 10.1002/mbo3.942] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 09/14/2019] [Accepted: 09/16/2019] [Indexed: 11/21/2022] Open
Abstract
In this study, we investigated the physicochemical properties of soil, and the diversity and structure of the soil ammonia-oxidizing archaea (AOA) community, when subjected to fertilizer treatments for over 35 years. We collected soil samples from a black soil fertilization trial in northeast China. Four treatments were tested: no fertilization (CK); manure (M); nitrogen (N), phosphorus (P), and potassium (K) chemical fertilizer (NPK); and N, P, and K plus M (MNPK). We employed 454 high-throughput pyrosequencing to measure the response of the soil AOA community to the long-term fertilization. The fertilization treatments had different impacts on the shifts in the soil properties and AOA community. The utilization of manure alleviated soil acidification and enhanced the soybean yield. The soil AOA abundance was increased greatly by inorganic and organic fertilizers. In addition, the community Chao1 and ACE were highest in the MNPK treatment. In terms of the AOA community composition, Thaumarchaeota and Crenarchaeota were the main AOA phyla in all samples. Compared with CK and M, the abundances of Thaumarchaeota were remarkably lower in the MNPK and NPK treatments. There were distinct shifts in the compositions of the AOA operational taxonomic units (OTUs) under different fertilization management practices. OTU51 was the dominant OTU in all treatments, except for NPK. OTU79 and OTU11 were relatively abundant OTUs in NPK. Only Nitrososphaera AOA were tracked from the black soil. Redundancy analysis indicated that the soil pH and soil available P were the two main factors that affected the AOA community structure. The abundances of AOA were positively correlated with the total N and available P concentrations, and negatively correlated with the soil pH.
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Affiliation(s)
- Jianli Ding
- Institute of Plant Nutrition and ResourcesBeijing Academy of Agriculture and Forestry SciencesBeijingChina
- Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijingChina
| | - Mingchao Ma
- Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijingChina
| | - Xin Jiang
- Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijingChina
| | - Yao Liu
- National Center for Science and Technology EvaluationMOSTBeijingChina
| | - Junzheng Zhang
- School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbinChina
| | - Linna Suo
- Institute of Plant Nutrition and ResourcesBeijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Lei Wang
- Institute of Plant Nutrition and ResourcesBeijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Dan Wei
- Institute of Plant Nutrition and ResourcesBeijing Academy of Agriculture and Forestry SciencesBeijingChina
| | - Jun Li
- Institute of Agricultural Resources and Regional PlanningChinese Academy of Agricultural SciencesBeijingChina
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Wang M, Chen S, Chen L, Wang D. Saline stress modifies the effect of cadmium toxicity on soil archaeal communities. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 182:109431. [PMID: 31301593 DOI: 10.1016/j.ecoenv.2019.109431] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 06/25/2019] [Accepted: 07/07/2019] [Indexed: 06/10/2023]
Abstract
The objective of this study was to examine the response of soil archaeal communities to saline stress in different types of Cd-contaminated soils from the North China Plain. Increased soil salinity by addition of 0.5% sodium salts (NaCl: Na2SO4: NaHCO3: Na2CO3 = 1:9:9:1) increased available Cd concentration, resulting in decreased ratios of Cd2+/CdT and CdSO4/CdT and increased ratios of CdCln2-n/CdT in soil solution. Soil saline stress decreased archaeal abundance and diversity and changed major soil archaeal taxa. For example, increased saline stress enriched taxa in the archaeal phyla Thaumarchaeota and Euryarchaeota, and these enriched tolerant taxa had much stronger correlations with soil properties, such as soil pH, EC or Na+. In addition, some microbes with low abundances like Bathyarchaeia (no rank) and Candidatus Nitrosotenuis were found to closely correlate with soil pH, EC, Na+, and Cl-, indicating they might play disproportionate roles in regulating ecological functions in stressed habitats. These results suggest that saline stress modified the effect of Cd toxicity on soil archaeal communities in different types of Cd-contaminated soils.
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Affiliation(s)
- Meng Wang
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture and Rural Affairs / Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China
| | - Shibao Chen
- Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture and Rural Affairs / Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, PR China.
| | - Li Chen
- Institute of Plant Protection and Environmental Protection, Beijing Academy of Agriculture and Forestry Science, Beijing, 100097, PR China
| | - Duo Wang
- College of Energy, Xiamen University, Xiamen, Fujian, 361102, PR China
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Tripathi BM, Kim HM, Jung JY, Nam S, Ju HT, Kim M, Lee YK. Distinct Taxonomic and Functional Profiles of the Microbiome Associated With Different Soil Horizons of a Moist Tussock Tundra in Alaska. Front Microbiol 2019; 10:1442. [PMID: 31316487 PMCID: PMC6610311 DOI: 10.3389/fmicb.2019.01442] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 06/07/2019] [Indexed: 11/13/2022] Open
Abstract
Permafrost-underlain tundra soils in Northern Hemisphere are one of the largest reservoirs of terrestrial carbon, which are highly sensitive to microbial decomposition due to climate warming. However, knowledge about the taxonomy and functions of microbiome residing in different horizons of permafrost-underlain tundra soils is still limited. Here we compared the taxonomic and functional composition of microbiome between different horizons of soil cores from a moist tussock tundra ecosystem in Council, Alaska, using 16S rRNA gene and shotgun metagenomic sequencing. The composition, diversity, and functions of microbiome varied significantly between soil horizons, with top soil horizon harboring more diverse communities than sub-soil horizons. The vertical gradient in soil physico-chemical parameters were strongly associated with composition of microbial communities across permafrost soil horizons; however, a large fraction of the variation in microbial communities remained unexplained. The genes associated with carbon mineralization were more abundant in top soil horizon, while genes involved in acetogenesis, fermentation, methane metabolism (methanogenesis and methanotrophy), and N cycling were dominant in sub-soil horizons. The results of phylogenetic null modeling analysis showed that stochastic processes strongly influenced the composition of the microbiome in different soil horizons, except the bacterial community composition in top soil horizon, which was largely governed by homogeneous selection. Our study expands the knowledge on the structure and functional potential of microbiome associated with different horizons of permafrost soil, which could be useful in understanding the effects of environmental change on microbial responses in tundra ecosystems.
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Affiliation(s)
| | - Hye Min Kim
- Environmental Safety Research Institute, NeoEnBiz, Bucheon, South Korea
| | - Ji Young Jung
- Korea Polar Research Institute, Incheon, South Korea
| | - Sungjin Nam
- Korea Polar Research Institute, Incheon, South Korea
| | - Hyeon Tae Ju
- Korea Polar Research Institute, Incheon, South Korea
| | - Mincheol Kim
- Korea Polar Research Institute, Incheon, South Korea
| | - Yoo Kyung Lee
- Korea Polar Research Institute, Incheon, South Korea
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Kerfahi D, Tripathi BM, Slik JWF, Sukri RS, Jaafar S, Adams JM. Distinctive Soil Archaeal Communities in Different Variants of Tropical Equatorial Forest. MICROBIAL ECOLOGY 2018; 76:215-225. [PMID: 29184976 DOI: 10.1007/s00248-017-1118-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 11/20/2017] [Indexed: 06/07/2023]
Abstract
Little is known of how soil archaeal community composition and diversity differ between local variants of tropical rainforests. We hypothesized that (1) as with plants, animals, fungi, and bacteria, the soil archaeal community would differ between different variants of tropical forest; (2) that spatially rarer forest variants would have a less diverse archaeal community than common ones; (3) that a history of forest disturbance would decrease archaeal alpha- and beta-diversity; and (4) that archaeal distributions within the forest would be governed more by deterministic than stochastic factors. We sampled soil across several different forest types within Brunei, Northwest Borneo. Soil DNA was extracted, and the 16S rRNA gene of archaea was sequenced using Illumina MiSeq. We found that (1) as hypothesized, there are distinct archaeal communities for each forest type, and community composition significantly correlates with soil parameters including pH, organic matter, and available phosphorous. (2) As hypothesized, the "rare" white sand forest variants kerangas and inland heath had lower archaeal diversity. A nestedness analysis showed that archaeal community in inland heath and kerangas was mainly a less diverse subset of that in dipterocarp forests. However, primary dipterocarp forest had the lowest beta-diversity among the other tropical forest types. (3) Also, as predicted, forest disturbance resulted in lower archaeal alpha-diversity-but increased beta-diversity in contrast with our predictions. (4) Contrary to our predictions, the BetaNTI of the various primary forest types indicated community assembly was mainly stochastic. The possible effects of these habitat and disturbance-related effects on N cycling should be investigated.
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Affiliation(s)
- Dorsaf Kerfahi
- Department of Biological Sciences, Seoul National University, Gwanak-Gu, Seoul, 151-747, Republic of Korea
- Biological Oceanography, Leibniz Institute for Baltic Sea Research Warnemünde (IOW), Seestrasse 15, 18119, Rostock, Germany
| | - Binu M Tripathi
- Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon, 21990, Republic of Korea
| | - J W Ferry Slik
- Faculty of Science, Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Rahayu S Sukri
- Faculty of Science, Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Salwana Jaafar
- Faculty of Science, Universiti Brunei Darussalam, Gadong, Brunei Darussalam
| | - Jonathan M Adams
- Division of Agrifood and Environment, Cranfield University, College Rd, Cranfield, MK43 0AL, UK.
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Variations in bacterial and archaeal communities along depth profiles of Alaskan soil cores. Sci Rep 2018; 8:504. [PMID: 29323168 PMCID: PMC5765012 DOI: 10.1038/s41598-017-18777-x] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 12/12/2017] [Indexed: 12/20/2022] Open
Abstract
Understating the microbial communities and ecological processes that influence their structure in permafrost soils is crucial for predicting the consequences of climate change. In this study we investigated the bacterial and archaeal communities along depth profiles of four soil cores collected across Alaska. The bacterial and archaeal diversity (amplicon sequencing) overall decreased along the soil depth but the depth-wise pattern of their abundances (qPCR) varied by sites. The community structure of bacteria and archaea displayed site-specific pattern, with a greater role of soil geochemical characteristics rather than soil depth. In particular, we found significant positive correlations between methane trapped in cores and relative abundance of methanogenic archaeal genera, indicating a strong association between microbial activity and methane production in subsurface soils. We observed that bacterial phylogenetic community assembly tended to be more clustered in surface soils than in deeper soils. Analyses of phylogenetic community turnover among depth profiles across cores indicated that the relative influence of deterministic and stochastic processes was mainly determined by soil properties rather than depth. Overall, our findings emphasize that the vertical distributions of bacterial and archaeal communities in permafrost soils are to a large extent determined by the variation in site-specific soil properties.
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Quantitative response relationships between net nitrogen transformation rates and nitrogen functional genes during artificial vegetation restoration following agricultural abandonment. Sci Rep 2017; 7:7752. [PMID: 28798309 PMCID: PMC5552692 DOI: 10.1038/s41598-017-08016-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 07/03/2017] [Indexed: 11/09/2022] Open
Abstract
A comprehensive understanding of how microbial associated with nitrogen (N) cycling respond to artificial vegetation restoration is still lacking, particularly in arid to semi-arid degraded ecosystems. We compared soil net N mineralization rates and the abundance of bacteria, archaea, and eleven N microbial genes on the northern Loess Plateau of China during the process of artificial vegetation restoration. The quantitative relationships between net N mineralization rates and N microbial genes were determined. We observed a significant difference of net transformation rates of NH4+-N (Ra), NO3--N (Rd), and total mineralization (Rm), which rapidly decreased in 10-year soils and steadily increased in the 10-30-year soils. Different N functional microbial groups responded to artificial vegetation restoration distinctly and differentially, especially for denitrifying bacteria. Stepwise regression analysis suggested that Ra was collectively controlled by AOA-amoA and Archaea; Rd was jointly governed by narG, napA, nxrA, and bacreria; and Rm was jointly controlled by napA, narG, nirK, nirS, norB, nosZ, and nxrA.
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Xu X, Liu X, Li Y, Ran Y, Liu Y, Zhang Q, Li Z, He Y, Xu J, Di H. Legacy effects of simulated short-term climate change on ammonia oxidisers, denitrifiers, and nitrous oxide emissions in an acid soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:11639-11649. [PMID: 28324256 DOI: 10.1007/s11356-017-8799-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 03/10/2017] [Indexed: 06/06/2023]
Abstract
Although the effect of simulated climate change on nitrous oxide (N2O) emissions and on associated microbial communities has been reported, it is not well understood if these effects are short-lived or long-lasting. Here, we conducted a field study to determine the interactive effects of simulated warmer and drier conditions on nitrifier and denitrifier communities and N2O emissions in an acidic soil and the longevity of the effects. A warmer (+2.3 °C) and drier climate (-7.4% soil moisture content) was created with greenhouses. The variation of microbial population abundance and community structure of ammonia-oxidizing archaea (AOA), bacteria (AOB), and denitrifiers (nirK/S, nosZ) were determined using real-time PCR and high-throughput sequencing. The results showed that the simulated warmer and drier conditions under the greenhouse following urea application significantly increased N2O emissions. There was also a moderate legacy effect on the N2O emissions when the greenhouses were removed in the urea treatment, although this effect only lasted a short period of time (about 60 days). The simulated climate change conditions changed the composition of AOA with the species affiliated to marine group 1.1a-associated lineage increasing significantly. The abundance of all the functional denitrifier genes decreased significantly under the simulated climate change conditions and the legacy effect, after the removal of greenhouses, significantly increased the abundance of AOB, AOA (mainly the species affiliated to marine group 1.1a-associated lineage), and nirK and nosZ genes in the urea-treated soil. In general, the effect of the simulated climate change was short-lived, with the denitrifier communities being able to return to ambient levels after a period of adaptation to ambient conditions. Therefore, the legacy effect of simulated short-time climate change conditions on the ammonia oxidizer and denitrifier communities and N2O emissions were temporary and once the conditions were removed, the microbial communities were able to adapt to the ambient conditions.
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Affiliation(s)
- Xiaoya Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Xiaorui Liu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Yong Li
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China.
| | - Yu Ran
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Yapeng Liu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Qichun Zhang
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Zheng Li
- Changzhou Industrial Technology Research Institute, Zhejiang University, Changzhou, China
| | - Yan He
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Jianming Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Hongjie Di
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
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Weber EB, Lehtovirta-Morley LE, Prosser JI, Gubry-Rangin C. Ammonia oxidation is not required for growth of Group 1.1c soil Thaumarchaeota. FEMS Microbiol Ecol 2015; 91:fiv001. [PMID: 25764563 PMCID: PMC4399444 DOI: 10.1093/femsec/fiv001] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Thaumarchaeota are among the most abundant organisms on Earth and are ubiquitous. Within this phylum, all cultivated representatives of Group 1.1a and Group 1.1b Thaumarchaeota are ammonia oxidizers, and play a key role in the nitrogen cycle. While Group 1.1c is phylogenetically closely related to the ammonia-oxidizing Thaumarchaeota and is abundant in acidic forest soils, nothing is known about its physiology or ecosystem function. The goal of this study was to perform in situ physiological characterization of Group 1.1c Thaumarchaeota by determining conditions that favour their growth in soil. Several acidic grassland, birch and pine tree forest soils were sampled and those with the highest Group 1.1c 16S rRNA gene abundance were incubated in microcosms to determine optimal growth temperature, ammonia oxidation and growth on several organic compounds. Growth of Group 1.1c Thaumarchaeota, assessed by qPCR of Group 1.1c 16S rRNA genes, occurred in soil, optimally at 30°C, but was not associated with ammonia oxidation and the functional gene amoA could not be detected. Growth was also stimulated by addition of organic nitrogen compounds (glutamate and casamino acids) but not when supplemented with organic carbon alone. This is the first evidence for non-ammonia oxidation associated growth of Thaumarchaeota in soil. Uncultivated soil Group 1.1c Thaumarchaeota are abundant, but have no known function. We report their growth without ammonia oxidation, unlike thaumarchaeal relatives, and stimulation by organic C.
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Affiliation(s)
- Eva B Weber
- Institute of Biological and Environmental Sciences, Cruickshank Building, St Machar Drive, University of Aberdeen, Aberdeen, AB24 3UU, UK
| | - Laura E Lehtovirta-Morley
- Institute of Biological and Environmental Sciences, Cruickshank Building, St Machar Drive, University of Aberdeen, Aberdeen, AB24 3UU, UK
| | - James I Prosser
- Institute of Biological and Environmental Sciences, Cruickshank Building, St Machar Drive, University of Aberdeen, Aberdeen, AB24 3UU, UK
| | - Cécile Gubry-Rangin
- Institute of Biological and Environmental Sciences, Cruickshank Building, St Machar Drive, University of Aberdeen, Aberdeen, AB24 3UU, UK
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11
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Basiliko N, Henry K, Gupta V, Moore TR, Driscoll BT, Dunfield PF. Controls on bacterial and archaeal community structure and greenhouse gas production in natural, mined, and restored Canadian peatlands. Front Microbiol 2013; 4:215. [PMID: 23914185 PMCID: PMC3728569 DOI: 10.3389/fmicb.2013.00215] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Accepted: 07/10/2013] [Indexed: 11/15/2022] Open
Abstract
Northern peatlands are important global C reservoirs, largely because of their slow rates of microbial C mineralization. Particularly in sites that are heavily influenced by anthropogenic disturbances, there is scant information about microbial ecology and whether or not microbial community structure influences greenhouse gas production. This work characterized communities of bacteria and archaea using terminal restriction fragment length polymorphism (T-RFLP) and sequence analysis of 16S rRNA and functional genes across eight natural, mined, or restored peatlands in two locations in eastern Canada. Correlations were explored among chemical properties of peat, bacterial and archaeal community structure, and carbon dioxide (CO2) and methane (CH4) production rates under oxic and anoxic conditions. Bacteria and archaea similar to those found in other peat soil environments were detected. In contrast to other reports, methanogen diversity was low in our study, with only 2 groups of known or suspected methanogens. Although mining and restoration affected substrate availability and microbial activity, these land-uses did not consistently affect bacterial or archaeal community composition. In fact, larger differences were observed between the two locations and between oxic and anoxic peat samples than between natural, mined, and restored sites, with anoxic samples characterized by less detectable bacterial diversity and stronger dominance by members of the phylum Acidobacteria. There were also no apparent strong linkages between prokaryote community structure and CH4 or CO2 production, suggesting that different organisms exhibit functional redundancy and/or that the same taxa function at very different rates when exposed to different peat substrates. In contrast to other earlier work focusing on fungal communities across similar mined and restored peatlands, bacterial and archaeal communities appeared to be more resistant or resilient to peat substrate changes brought about by these land uses.
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Affiliation(s)
- Nathan Basiliko
- Department of Geography, University of Toronto Mississauga Mississauga, ON, Canada ; Max-Planck-Institute for Terrestrial Microbiology Marburg, Germany
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12
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Tripathi BM, Kim M, Lai-Hoe A, Shukor NA, Rahim RA, Go R, Adams JM. pH dominates variation in tropical soil archaeal diversity and community structure. FEMS Microbiol Ecol 2013; 86:303-11. [DOI: 10.1111/1574-6941.12163] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 06/05/2013] [Accepted: 06/05/2013] [Indexed: 11/28/2022] Open
Affiliation(s)
- Binu M. Tripathi
- Department of Biological Sciences; College of Natural Sciences; Seoul National University; Gwanak-gu Seoul; Korea
| | - Mincheol Kim
- Department of Biological Sciences; College of Natural Sciences; Seoul National University; Gwanak-gu Seoul; Korea
| | - Ang Lai-Hoe
- Division of Forest Biotechnology; Forest Research Institute of Malaysia (FRIM); Kepong; Malaysia
| | - Nor A.A. Shukor
- Institute of Tropical Forestry and Forest Products (INTROP); University Putra Malaysia; Serdang; Malaysia
| | - Raha A. Rahim
- Faculty of Biotechnology and Biomolecular Sciences; Institute of Bioscience; University Putra Malaysia; Serdang; Malaysia
| | - Rusea Go
- Department of Biology; Faculty of Science; University Putra Malaysia; Serdang; Malaysia
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13
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Artz RRE. Microbial Community Structure and Carbon Substrate use in Northern Peatlands. CARBON CYCLING IN NORTHERN PEATLANDS 2013. [DOI: 10.1029/2008gm000806] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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14
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Mayor DJ, Thornton B, Hay S, Zuur AF, Nicol GW, McWilliam JM, Witte UFM. Resource quality affects carbon cycling in deep-sea sediments. ISME JOURNAL 2012; 6:1740-8. [PMID: 22378534 DOI: 10.1038/ismej.2012.14] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Deep-sea sediments cover ~70% of Earth's surface and represent the largest interface between the biological and geological cycles of carbon. Diatoms and zooplankton faecal pellets naturally transport organic material from the upper ocean down to the deep seabed, but how these qualitatively different substrates affect the fate of carbon in this permanently cold environment remains unknown. We added equal quantities of (13)C-labelled diatoms and faecal pellets to a cold water (-0.7 °C) sediment community retrieved from 1080 m in the Faroe-Shetland Channel, Northeast Atlantic, and quantified carbon mineralization and uptake by the resident bacteria and macrofauna over a 6-day period. High-quality, diatom-derived carbon was mineralized >300% faster than that from low-quality faecal pellets, demonstrating that qualitative differences in organic matter drive major changes in the residence time of carbon at the deep seabed. Benthic bacteria dominated biological carbon processing in our experiments, yet showed no evidence of resource quality-limited growth; they displayed lower growth efficiencies when respiring diatoms. These effects were consistent in contrasting months. We contend that respiration and growth in the resident sediment microbial communities were substrate and temperature limited, respectively. Our study has important implications for how future changes in the biochemical makeup of exported organic matter will affect the balance between mineralization and sequestration of organic carbon in the largest ecosystem on Earth.
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Affiliation(s)
- Daniel J Mayor
- Institute of Biological and Environmental Sciences, Oceanlab, University of Aberdeen, Newburgh, Aberdeenshire, UK.
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15
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Cao P, Zhang LM, Shen JP, Zheng YM, Di HJ, He JZ. Distribution and diversity of archaeal communities in selected Chinese soils. FEMS Microbiol Ecol 2012; 80:146-58. [DOI: 10.1111/j.1574-6941.2011.01280.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 12/08/2011] [Accepted: 12/08/2011] [Indexed: 11/30/2022] Open
Affiliation(s)
| | - Li-Mei Zhang
- State Key Laboratory of Urban and Regional Ecology; Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing; China
| | - Ju-Pei Shen
- State Key Laboratory of Urban and Regional Ecology; Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing; China
| | - Yuan-Ming Zheng
- State Key Laboratory of Urban and Regional Ecology; Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing; China
| | - Hong J. Di
- Centre for Soil and Environmental Research; Lincoln University; Lincoln; Christchurch; New Zealand
| | - Ji-Zheng He
- State Key Laboratory of Urban and Regional Ecology; Research Center for Eco-Environmental Sciences; Chinese Academy of Sciences; Beijing; China
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16
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Nakaya A, Onodera Y, Nakagawa T, Satoh K, Takahashi R, Sasaki S, Tokuyama T. Analysis of ammonia monooxygenase and archaeal 16S rRNA gene fragments in nitrifying acid-sulfate soil microcosms. Microbes Environ 2011; 24:168-74. [PMID: 21566370 DOI: 10.1264/jsme2.me09104] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The present study describes the occurrence of a unique archaeal ammonia monooxygenase alpha subunit (amoA) gene in nitrifying acid-sulfate soil microcosms at pH 3.5. The soil was collected from an abandoned paddy field in Thailand. Microcosms were incubated in the dark at 30°C for 372 days with the following three treatments: addition of ammonium sulfate solution once a month (I) or once a week (II), and addition of only sterilized water (III). A quantitative PCR analysis revealed an increase in abundance of the archaeal amoA gene in microcosm soils in which nitrate concentrations increased after incubation. A phylogenetic analysis indicated a predominance of the novel gene, and a predominance of a betaproteobacterial amoA gene affiliated with the genus Nitrosospira. A 16S rRNA gene-based PCR assay revealed that crenarchaeotic Group I.1d was predominant among the Crenarchaeota in microcosms. These results suggest the presence of ammonia-oxidizing archaea corresponding to the unique amoA lineage in nitrifying acid-sulfate soil microcosms at pH 3.5.
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Affiliation(s)
- Asami Nakaya
- Graduate School of Bioresource Science, Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-8510, Japan
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17
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Onodera Y, Nakagawa T, Takahashi R, Tokuyama T. Seasonal change in vertical distribution of ammonia-oxidizing archaea and bacteria and their nitrification in temperate forest soil. Microbes Environ 2011; 25:28-35. [PMID: 21576849 DOI: 10.1264/jsme2.me09179] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Seasonal change in the vertical distribution of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) in temperate forest soil was examined from March 2008 to January 2009 by quantitative PCR of the amoA genes. Abundances of AOA amoA genes (ranging from 2.0×10(8) to 1.2×10(9) copies per gram dry soil) were significantly higher than those of AOB amoA genes (1.9×10(5) to 1.7×10(7) copies). A significant increase in AOB was observed at a depth of 0-5 cm in July when net nitrification was also high in the top soil, while AOA increased significantly at depths of 5-10 cm, 10-15 cm, and over 15 cm in July. Sequencing of the crenarchaeotal amoA gene revealed shifts in major AOA components along the soil depth profile and among sampling dates. Betaproteobacterial amoA clone libraries at 0-5 cm in March, May, and July were dominated by Nitrosospira clusters 1 and 4. A microcosm experiment at 0-5 cm in July revealed a decrease in the ratio of AOA/AOB amoA genes in microcosms. These results suggest that AOB play an important role in net nitrification in the top layer in temperate forest soil.
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Affiliation(s)
- Yuki Onodera
- Graduate School of Bioresource Sciences, Nihon University, 1866 Kameino, Fujisawa, Kanagawa, Japan
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18
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Bomberg M, Münster U, Pumpanen J, Ilvesniemi H, Heinonsalo J. Archaeal communities in boreal forest tree rhizospheres respond to changing soil temperatures. MICROBIAL ECOLOGY 2011; 62:205-217. [PMID: 21394607 DOI: 10.1007/s00248-011-9837-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Accepted: 02/20/2011] [Indexed: 05/30/2023]
Abstract
Temperature has generally great effects on both the activity and composition of microbial communities in different soils. We tested the impact of soil temperature and three different boreal forest tree species on the archaeal populations in the bulk soil, rhizosphere, and mycorrhizosphere. Scots pine, silver birch, and Norway spruce seedlings were grown in forest humus microcosms at three different temperatures, 7-11.5°C (night-day temperature), 12-16°C, and 16-22°C, of which 12-16°C represents the typical mid-summer soil temperature in Finnish forests. RNA and DNA were extracted from indigenous ectomycorrhiza, non-mycorrhizal long roots, and boreal forest humus and tested for the presence of archaea by nested PCR of the archaeal 16S rRNA gene followed by denaturing gradient gel electrophoresis (DGGE) profiling and sequencing. Methanogenic Euryarchaeota belonging to Methanolobus sp. and Methanosaeta sp. were detected on the roots and mycorrhiza. The most commonly detected archaeal 16S rRNA gene sequences belonged to group I.1c Crenarchaeota, which are typically found in boreal and alpine forest soils. Interestingly, also one sequence belonging to group I.1b Crenarchaeota was detected from Scots pine mycorrhiza although sequences of this group are usually found in agricultural and forest soils in temperate areas. Tree- and temperature-related shifts in the archaeal population structure were observed. A clear decrease in crenarchaeotal DGGE band number was seen with increasing temperature, and correspondingly, the number of euryarchaeotal DGGE bands, mostly methanogens, increased. The greatest diversity of archaeal DGGE bands was detected in Scots pine roots and mycorrhizas. No archaea were detected from humus samples from microcosms without tree seedling, indicating that the archaea found in the mycorrhizosphere and root systems were dependent on the plant host. The detection of archaeal 16S rRNA gene sequences from both RNA and DNA extractions show that the archaeal populations were living and that they may have significant contribution to the methane cycle in boreal forest soil, especially when soil temperatures rise.
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Affiliation(s)
- Malin Bomberg
- Department of Food and Environmental Sciences, University of Helsinki, P.O. Box 56, 00014, Helsinki, Finland.
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19
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Szukics U, Hackl E, Zechmeister-Boltenstern S, Sessitsch A. Rapid and dissimilar response of ammonia oxidizing archaea and bacteria to nitrogen and water amendment in two temperate forest soils. Microbiol Res 2011; 167:103-9. [PMID: 21632226 DOI: 10.1016/j.micres.2011.04.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2011] [Revised: 04/18/2011] [Accepted: 04/19/2011] [Indexed: 11/26/2022]
Abstract
Biochemical processes relevant to soil nitrogen (N) cycling are performed by soil microorganisms affiliated with diverse phylogenetic groups. For example, the oxidation of ammonia, representing the first step of nitrification, can be performed by ammonia oxidizing bacteria (AOB) and, as recently reported, also by ammonia oxidizing archaea (AOA). However, the contribution to ammonia oxidation of the phylogenetically separated AOA versus AOB and their respective responsiveness to environmental factors are still poorly understood. The present study aims at comparing the capacity of AOA and AOB to momentarily respond to N input and increased soil moisture in two contrasting forest soils. Soils from the pristine Rothwald forest and the managed Schottenwald forest were amended with either NH(4)(+)-N or NO(3)(-)-N and were incubated at 40% and 70% water-filled pore space (WFPS) for four days. Nitrification rates were measured and AOA and AOB abundance and community composition were determined via quantitative PCR (qPCR) and terminal restriction length fragment polymorphism (T-RFLP) analysis of bacterial and archaeal amoA genes. Our study reports rapid and distinct changes in AOA and AOB abundances in the two forest soils in response to N input and increased soil moisture but no significant effects on net nitrification rates. Functional microbial communities differed significantly in the two soils and responded specifically to the treatments during the short-term incubation. In the Rothwald soil the abundance and community composition of AOA were affected by the water content, whereas AOB communities responded to N amendment. In the Schottenwald soil, by contrast, AOA responded to N addition. These results suggest that AOA and AOB may be selectively influenced by soil and management factors.
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Affiliation(s)
- Ute Szukics
- AIT Austrian Institute of Technology GmbH, Bioresources Unit, A-3430 Tulln an der Donau, Austria.
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20
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Takada Hoshino Y, Morimoto S, Hayatsu M, Nagaoka K, Suzuki C, Karasawa T, Takenaka M, Akiyama H. Effect of Soil Type and Fertilizer Management on Archaeal Community in Upland Field Soils. Microbes Environ 2011; 26:307-16. [DOI: 10.1264/jsme2.me11131] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Sho Morimoto
- National Institute for Agro-Environmental Sciences
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21
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Yarwood SA, Bottomley PJ, Myrold DD. Soil microbial communities associated with Douglas-fir and red alder stands at high- and low-productivity forest sites in Oregon, USA. MICROBIAL ECOLOGY 2010; 60:606-617. [PMID: 20449582 DOI: 10.1007/s00248-010-9675-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Accepted: 04/10/2010] [Indexed: 05/29/2023]
Abstract
Communities of archaea, bacteria, and fungi were examined in forest soils located in the Oregon Coast Range and the inland Cascade Mountains. Soils from replicated plots of Douglas-fir (Pseudotsuga menziesii) and red alder (Alnus rubra) were characterized using fungal ITS (internal transcribed spacer region), eubacterial 16S rRNA, and archaeal 16S rRNA primers. Population size was measured with quantitative (Q)-PCR and composition was examined using length heterogeneity (LH)-PCR for fungal composition, terminal restriction fragment length (T-RFLP) profiles for bacterial and archaeal composition, and sequencing to identify dominant community members. Whereas fungal and archaeal composition varied between sites and dominant tree species, bacterial communities only varied between sites. The abundance of archaeal gene copy numbers was found to be greater in coastal compared to montane soils accounting for 11% of the prokaryotic community. Crenarchaea groups 1.1a-associated, 1.1b, 1.1c, and 1.1c-associated were putatively identified. A greater abundance of Crenarchaea 1.1b indicator fragments was found in acidic (pH 4) soils with low C:N ratios under red alder. In coastal soils, 25% of fungal sequences were putatively identified as basidiomycetous yeasts belonging to the genus Cryptococcus. Although the function of these yeasts in soil is not known, they could significantly contribute to decomposition processes in coastal soils distinguished by rapid tree growth, high N content, low pH, and frequent water-saturation events.
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Affiliation(s)
- Stephanie A Yarwood
- Department of Microbiology, Oregon State University, Nash Hall 220, Corvallis, OR 97331, USA.
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22
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Ying JY, Zhang LM, He JZ. Putative ammonia-oxidizing bacteria and archaea in an acidic red soil with different land utilization patterns. ENVIRONMENTAL MICROBIOLOGY REPORTS 2010; 2:304-312. [PMID: 23766082 DOI: 10.1111/j.1758-2229.2009.00130.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Ammonia-oxidizers play a key role in nitrification, which is important for nitrogen cycling and soil function. However, little is known about how vegetation successions and agricultural practices caused by human activities impact the ammonia-oxidizers and nitrification process. Putative ammonia-oxidizing bacteria (AOB) and archaea (AOA) communities under different land utilization patterns of restoration (forest), degradation (pasture), cropland and pine plantation were analysed in an acidic red soil based on bacterial and archaeal amoA genes together with archaeal 16S rRNA gene. Real-time PCR, terminal restriction fragment length polymorphism (T-RFLP) and sequencing of clone libraries were conducted to study their abundance and community structure. Land utilization pattern showed significant effects on the copy numbers of all these genes, but only the bacterial amoA gene correlated significantly with potential nitrification rates (PNR). The cropland plot possessed the highest bacterial amoA gene copies and PNR, while the degradation plot was opposite to that. There were no significant variations in the bacterial amoA gene structure, which was dominated by Clusters 10 and 11 in Nitrosospira. However, archaeal amoA gene structure varied among different land utilization patterns especially for the cropland. The degradation plot was dominated by Crenarchaea 1.1c-related groups from which the amoA gene could not been amplified in this study, while other plots were dominated by Crenarchaea 1.1a/b group based on archaeal 16S rRNA gene analysis. These results indicated significant effects of land utilization patterns on putative ammonia oxidizers, which were especially obvious in the degradation and cropland plots where frequent human disturbance occurred.
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Affiliation(s)
- Jiao-Yan Ying
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
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23
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Lehtovirta LE, Prosser JI, Nicol GW. Soil pH regulates the abundance and diversity of Group 1.1c Crenarchaeota. FEMS Microbiol Ecol 2009; 70:367-76. [PMID: 19732147 DOI: 10.1111/j.1574-6941.2009.00748.x] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Archaeal communities in many acidic forest soil systems are dominated by a distinct crenarchaeal lineage Group 1.1c. In addition, they are found consistently in other acidic soils including grassland pasture, moorland and alpine soils. To determine whether soil pH is a major factor in determining their presence and abundance, Group 1.1c community size and composition were investigated across a pH gradient from 4.5 to 7.5 that has been maintained for > 40 years. The abundances of Group 1.1c Crenarchaeota, total Crenarchaeota and total bacteria were assessed by quantitative PCR (qPCR) targeting 16S rRNA genes and the diversity of Group 1.1c crenarchaeal community was investigated by denaturing gradient gel electrophoresis (DGGE) and phylogenetic analysis. The abundance of Group 1.1c Crenarchaeota declined as the pH increased, whereas total Crenarchaeota and Bacteria showed no clear trend. Community diversity of Group 1.1c Crenarchaeota was also influenced with different DGGE bands dominating at different pH. Group 1.1c Crenarchaeota were also quantified in 13 other soils representing a range of habitats, soil types and pH. These results exhibited the same trend as that shown across the pH gradient with Group 1.1c Crenarchaeota representing a greater proportion of total Crenarchaeota in the most acidic soils.
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Affiliation(s)
- Laura E Lehtovirta
- Institute of Biological and Environmental Sciences, University of Aberdeen, Aberdeen, UK
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24
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Bomberg M, Timonen S. Effect of tree species and mycorrhizal colonization on the archaeal population of boreal forest rhizospheres. Appl Environ Microbiol 2009; 75:308-15. [PMID: 18978075 PMCID: PMC2620727 DOI: 10.1128/aem.01739-08] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2008] [Accepted: 10/23/2008] [Indexed: 11/20/2022] Open
Abstract
Group 1.1c Crenarchaeota are the predominating archaeal group in acidic boreal forest soils. In this study, we show that the detection frequency of 1.1c crenarchaeotal 16S rRNA genes in the rhizospheres of the boreal forest trees increased following colonization by the ectomycorrhizal fungus Paxillus involutus. This effect was very clear in the fine roots of Pinus sylvestris, Picea abies, and Betula pendula, the most common forest trees in Finland. The nonmycorrhizal fine roots had a clearly different composition of archaeal 16S rRNA genes in comparison to the mycorrhizal fine roots. In the phylogenetic analysis, the 1.1c crenarchaeotal 16S rRNA gene sequences obtained from the fine roots formed a well-defined cluster separate from the mycorrhizal ones. Alnus glutinosa differed from the other trees by having high diversity and detection levels of Crenarchaeota both on fine roots and on mycorrhizas as well as by harboring a distinct archaeal flora. The similarity of the archaeal populations in rhizospheres of the different tree species was increased upon colonization by the ectomycorrhizal fungus. A minority of the sequences obtained from the mycorrhizas belonged to Euryarchaeota (order Halobacteriales).
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MESH Headings
- Basidiomycota/growth & development
- Biodiversity
- Crenarchaeota/classification
- Crenarchaeota/genetics
- Crenarchaeota/isolation & purification
- DNA, Archaeal/chemistry
- DNA, Archaeal/genetics
- DNA, Ribosomal/chemistry
- DNA, Ribosomal/genetics
- Finland
- Genes, rRNA
- Molecular Sequence Data
- Mycorrhizae/growth & development
- Phylogeny
- Plant Roots/microbiology
- RNA, Archaeal/genetics
- RNA, Ribosomal, 16S/genetics
- Sequence Analysis, DNA
- Sequence Homology, Nucleic Acid
- Soil Microbiology
- Trees
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Affiliation(s)
- Malin Bomberg
- Department of Applied Chemistry and Microbiology, Division of Microbiology, P.O. Box 56, FIN-00014 University of Helsinki, Finland.
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Boyle-Yarwood SA, Bottomley PJ, Myrold DD. Community composition of ammonia-oxidizing bacteria and archaea in soils under stands of red alder and Douglas fir in Oregon. Environ Microbiol 2008; 10:2956-65. [DOI: 10.1111/j.1462-2920.2008.01600.x] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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26
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Nicol GW, Leininger S, Schleper C, Prosser JI. The influence of soil pH on the diversity, abundance and transcriptional activity of ammonia oxidizing archaea and bacteria. Environ Microbiol 2008; 10:2966-78. [PMID: 18707610 DOI: 10.1111/j.1462-2920.2008.01701.x] [Citation(s) in RCA: 535] [Impact Index Per Article: 33.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Autotrophic ammonia oxidation occurs in acid soils, even though laboratory cultures of isolated ammonia oxidizing bacteria fail to grow below neutral pH. To investigate whether archaea possessing ammonia monooxygenase genes were responsible for autotrophic nitrification in acid soils, the community structure and phylogeny of ammonia oxidizing bacteria and archaea were determined across a soil pH gradient (4.9-7.5) by amplifying 16S rRNA and amoA genes followed by denaturing gradient gel electrophoresis (DGGE) and sequence analysis. The structure of both communities changed with soil pH, with distinct populations in acid and neutral soils. Phylogenetic reconstructions of crenarchaeal 16S rRNA and amoA genes confirmed selection of distinct lineages within the pH gradient and high similarity in phylogenies indicated a high level of congruence between 16S rRNA and amoA genes. The abundance of archaeal and bacterial amoA gene copies and mRNA transcripts contrasted across the pH gradient. Archaeal amoA gene and transcript abundance decreased with increasing soil pH, while bacterial amoA gene abundance was generally lower and transcripts increased with increasing pH. Short-term activity was investigated by DGGE analysis of gene transcripts in microcosms containing acidic or neutral soil or mixed soil with pH readjusted to that of native soils. Although mixed soil microcosms contained identical archaeal ammonia oxidizer communities, those adapted to acidic or neutral pH ranges showed greater relative activity at their native soil pH. Findings indicate that different bacterial and archaeal ammonia oxidizer phylotypes are selected in soils of different pH and that these differences in community structure and abundances are reflected in different contributions to ammonia oxidizer activity. They also suggest that both groups of ammonia oxidizers have distinct physiological characteristics and ecological niches, with consequences for nitrification in acid soils.
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Affiliation(s)
- Graeme W Nicol
- Institute of Biological and Environmental Science, University of Aberdeen, Cruickshank Building, Aberdeen, UK
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27
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Juottonen H, Tuittila ES, Juutinen S, Fritze H, Yrjälä K. Seasonality of rDNA- and rRNA-derived archaeal communities and methanogenic potential in a boreal mire. ISME JOURNAL 2008; 2:1157-68. [DOI: 10.1038/ismej.2008.66] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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