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You searched for: Subject "microbial biomass" Remove constraint Subject: "microbial biomass"
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1. Wheat straw return can lead to biogenic toluene emissions

Author:
Ting Wu; Xiaoyu Zhao; Mengdi Liu; Juan Zhao; Xinming Wang
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 281-290
ISSN:
1001-0742
Subject:
microbial biomass,   etc   ; carbon dioxide; fungi; toluene; volatile organic compounds; wheat straw; China;     Show all 7 Subjects
Abstract:
... As a common practice in agricultural system, straw return has been reported to release a large number of trace gases and attracted much attention. However, the role of straw return in toluene emission remains poorly understood. In this study we measured the emissions of toluene as well as other 50 volatile organic compounds (VOCs) from wheat straw return for 66 days under flooded and non-flooded c ...
DOI:
10.1016/j.jes.2021.08.050

2. Study on the preparation conditions and degradation performance of an efficient immobilized microbial agent for marine oil pollution

Author:
Xinge Fu; Tongtong Wu; Huashan Li; Jianliang Xue; Jingkuan Sun; Lin Li; Yanlu Qiao; Chao Li
Source:
Environmental technology 2022 v.43 no.15 pp. 2352-2358
ISSN:
1479-487X
Subject:
microbial biomass,   etc   ; cinnamon; environmental technology; oils; pollution; sodium alginate;     Show all 6 Subjects
Abstract:
... In the process of handling marine oil spills accidents, the biological method has attracted wide attention due to its low cost and no secondary pollution. However, in the process of practical application, there are problems such as low microbial density and great influence of environmental factors when the oil is treated by spraying microorganisms on the sea surface. This study used immobilized mi ...
DOI:
10.1080/09593330.2021.1877362

3. Soil microbial biomass C:N:P stoichiometry is driven more by climate, soil properties and plant traits than by N enrichment in a desert steppe

Author:
Zhao Fang; Hailong Yu; Chunhuan Li; Bin Wang; Juying Huang
Source:
Catena 2022 v.216 pp. 106402
ISSN:
0341-8162
Subject:
microbial biomass,   etc   ; arid lands; catenas; ecosystems; homeostasis; nitrogen; steppes; stoichiometry;     Show all 8 Subjects
Abstract:
... The impacts of increased ecosystem nitrogen (N) inputs on soil microbial biomass C:N:P stoichiometry have been extensively explored. However, the stoichiometric homeostasis and driving mechanisms of microbial C:N:P stoichiometry following N enrichment remain elusive in dryland ecosystems, especially in moderately alkaline desert steppes. Here, we employed a five-year (2015–2019) N enrichment exper ...
DOI:
10.1016/j.catena.2022.106402

4. Natural Biosorbents for Lanthanides Recovery

Author:
Ellen C. Giese
Source:
Industrial biotechnology 2022 v.18 no.2 pp. 71-76
ISSN:
1931-8421
Subject:
microbial biomass,   etc   ; biosorbents; biosorption; biotechnology; cost effectiveness; ion exchange; lanthanides; solvents;     Show all 8 Subjects
Abstract:
... The extraction and separation of rare earth elements (REE) from raw materials are complicated due to their similar physical and chemical properties. Hydrometallurgical methods such as solvent extraction and ion exchange have been applied with low selectivity and efficiency at diluted solutions. Biosorption could be used as a hydrometallurgical process to extract, separate, and recover REE both in ...
DOI:
10.1089/ind.2022.0009

5. Diel dynamics of dissolved organic matter and heterotrophic prokaryotes reveal enhanced growth at the ocean's mesopelagic fish layer during daytime

Author:
Xosé Anxelu G. Morán; Francisca C. García; Anders Røstad; Luis Silva; Najwa Al-Otaibi; Xabier Irigoien; Maria Ll. Calleja
Source:
Science of the total environment 2022 v.804 pp. 150098
ISSN:
0048-9697
Subject:
microbial biomass,   etc   ; environment; fish; migratory behavior; plankton; prokaryotic cells; seawater; Red Sea;     Show all 8 Subjects
Abstract:
... Contrary to epipelagic waters, where biogeochemical processes closely follow the light and dark periods, little is known about diel cycles in the ocean's mesopelagic realm. Here, we monitored the dynamics of dissolved organic matter (DOM) and planktonic heterotrophic prokaryotes every 2 h for one day at 0 and 550 m (a depth occupied by vertically migrating fishes during light hours) in oligotrophi ...
DOI:
10.1016/j.scitotenv.2021.150098

6. Estimating microbial carbon use efficiency in soil: Isotope-based and enzyme-based methods measure fundamentally different aspects of microbial resource use

Author:
Joshua Schimel; Michael N. Weintraub; Daryl Moorhead
Source:
Soil biology & biochemistry 2022 v.169 pp. 108677
ISSN:
0038-0717
Subject:
microbial biomass,   etc   ; carbon dioxide; microbial carbon; soil; soil biology; soil carbon; stoichiometry;     Show all 7 Subjects
Abstract:
... How carbon partitions between microbial biomass and CO₂ (carbon use efficiency, CUE) is key in all soil carbon cycling models. Traditional methods to estimate CUE focus on the physiological partitioning of specific substrates, typically labeled with isotopes. However, an alternative approach (Sinsabaugh et al., 2016) is based on community-level resource capture using assays of extracellular enzyme ...
DOI:
10.1016/j.soilbio.2022.108677

7. Biochar amendment benefits 15N fertilizer retention and rhizosphere N enrichment in a maize-soil system

Author:
Jie Zhang; Lijuan Zhang; Shaojun Qiu
Source:
Geoderma 2022 v.412 pp. 115713
ISSN:
0016-7061
Subject:
microbial biomass,   etc   ; biochar; corn; leaves; mineralization; nitrogen fertilizers; rhizosphere; soil; urea; urea nitrogen;     Show all 10 Subjects
Abstract:
... Biochar amendments regulate fertilizer nitrogen (N) transformation in soil and crop N uptake. To elucidate the effect of biochar amendment on the translocation of fertilizer N in a crop-soil system during crop growth, a maize pot experiment was conducted using an isotope tracer approach. The treatments were: without N application; ¹⁵N-labelled urea; and ¹⁵N-labeled urea plus biochar. During maize ...
DOI:
10.1016/j.geoderma.2022.115713

8. Indigenous arbuscular mycorrhizal fungi play a role in phosphorus depletion in organic manure amended high fertility soil

Author:
Wei-ge HUO; Xiao-fen CHAI; Xi-he WANG; William David BATCHELOR; Arjun KAFLE; Gu FENG
Source:
Journal of integrative agriculture 2022 pp. -
ISSN:
2095-3119
Subject:
microbial biomass,   etc   ; Glomus; Paraglomus; agriculture; cotton; hyphae; phosphorus; species richness; vesicular arbuscular mycorrhizae;     Show all 9 Subjects
Abstract:
... The species richness and propagule number of arbuscular mycorrhizal fungi (AMF) are high in intensively managed agricultural soils. Past research has shown that AMF improve crop phosphorus (P) uptake under low soil P conditions, however it is unclear if AMF play a role in high Olsen-P soils. In this study, we investigated whether native fungal benefits exist under high P input field conditions in- ...
DOI:
10.1016/j.jia.2022.07.045

9. Organic substrate availability and enzyme activity affect microbial-controlled carbon dynamics in areas disturbed by a mining dam failure

Author:
Éder Rodrigues Batista; Aline de Jesus Franco; Ana Paula Valadares da Silva; Jessyca Adriana Gomes Florêncio da Silva; Davi Santos Tavares; Josemara Karina de Souza; Aline Oliveira Silva; Marisângela Viana Barbosa; Jessé Valentim dos Santos; Marco Aurélio Carbone Carneiro
Source:
Applied soil ecology 2022 v.169 pp. 104169
ISSN:
0929-1393
Subject:
microbial biomass,   etc   ; carbon; ecophysiology; enzyme activity; microbial growth; organic matter; rivers; soil ecology;     Show all 8 Subjects
Abstract:
... We investigated key ecophysiological traits of microbial communities across different disturbance levels for two upper horizon depths (A1: 0–3 cm and A2: 10–13 cm) in areas disturbed by Fundão dam failure across Gualaxo do Norte river. We found that lower microbial growth (microbial biomass) and higher microbial-C losses (high qCO₂) were linked to both decreases in organic substrate availability a ...
DOI:
10.1016/j.apsoil.2021.104169

10. Straw Incorporation Effects on Net Photosynthetic Carbon Assimilation and Maize Growth

Author:
Xin-Xin Wang; Jiaqi Li; Danlei Wang; An Tingting; Wei Qin; Hongtao Zou; Zed Rengel
Source:
Frontiers in agronomy 2022 v.4 pp. -
ISSN:
2673-3218
Subject:
microbial biomass,   etc   ; agronomy; carbon dioxide fixation; corn; photosynthesis; soil; soil organic carbon; straw;     Show all 8 Subjects
Abstract:
... Returning straw into soil could increase soil organic carbon (SOC) and promote crop growth. However, little has been reported on the source of C for increased SOC (straw C or crop photosynthetic C). To investigate the assimilation of photosynthetic C and its distribution in soil in the maize growth season, we set up a 1-year 13C pulse-labeling experiment in a consecutive maize-straw-returning long ...
DOI:
10.3389/fagro.2022.805320

11. Study on the mechanism of inhibiting the calcification of anaerobic granular sludge induced by the addition of trace signal molecule (3O-C6-HSL)

Author:
Wencai Fu; Meiling Li; Wenhao Dang; Kaili Zhu; Guoning Chen; Jian Zhang; Shuangfei Wang; Yanzhu Guo; Zhiwei Wang
Source:
Bioresource technology 2022 v.344 pp. 126232
ISSN:
0960-8524
Subject:
microbial biomass,   etc   ; calcification; calcium carbonate; carbon dioxide; mass transfer; microorganisms; porosity; sludge; technology;     Show all 9 Subjects
Abstract:
... Microbiota quorum sensing (QS) induced by 3O-C6-HSL (N-(β-ketocaproyl)-DL-homoserine lactone) inhibited the calcification of anaerobic granular sludge (AnGS), and the mechanism of promoting the activity recovery of calcified AnGS was studied in this paper. Through research, it was speculated that 3O-C6-HSL acted on calcified AnGS residual microorganisms to trigger QS. It enriched many functional m ...
DOI:
10.1016/j.biortech.2021.126232

12. High molecular weight DNA extraction strategies for long‐read sequencing of complex metagenomes

Author:
Florian Trigodet; Karen Lolans; Emily Fogarty; Alon Shaiber; Hilary G. Morrison; Luis Barreiro; Bana Jabri; A. Murat Eren
Source:
Molecular ecology resources 2022 v.22 no.5 pp. 1786-1802
ISSN:
1755-098X
Subject:
microbial biomass,   etc   ; DNA; agarose; digestion; ecology; enzymes; genome; humans; metagenomics; molecular weight; tongue;     Show all 11 Subjects
Abstract:
... By offering extremely long contiguous characterization of individual DNA molecules, rapidly emerging long‐read sequencing strategies offer comprehensive insights into the organization of genetic information in genomes and metagenomes. However, successful long‐read sequencing experiments demand high concentrations of highly purified DNA of high molecular weight (HMW), which limits the utility of es ...
DOI:
10.1111/1755-0998.13588

13. Linkage of Crop Productivity to Soil Nitrogen Dynamics under Biochar Addition: A Meta-Analysis across Field Studies

Author:
Leiyi Zhang; Meixia Zhang; Yantao Li; Jianling Li; Yiming Jing; Yangzhou Xiang; Bin Yao; Qi Deng
Source:
Agronomy 2022 v.12 no.2 pp. -
ISSN:
2073-4395
Subject:
microbial biomass,   etc   ; agronomy; biochar; meta-analysis; models; nitrogen; nitrous oxide; soil; total nitrogen;     Show all 9 Subjects
Abstract:
... Biochar addition is a promising solution to improve soil nitrogen (N) availability and enhance crop productivity. However, a comprehensive understanding of the impact of soil N dynamics on crop productivity under biochar addition remains elusive. Here, we conducted a meta-analysis from 93 peer-reviewed field experiments to synthesize the linkage of crop productivity to soil N dynamics under biocha ...
DOI:
10.3390/agronomy12020247

14. Deepened snow loosens temporal coupling between plant and microbial N utilization and induces ecosystem N losses

Author:
Zhou Jia; Ping Li; Yuntao Wu; Pengfei Chang; Meifeng Deng; Luyin Liang; Sen Yang; Chengzhang Wang; Bin Wang; Lu Yang; Xin Wang; Zhenhua Wang; Ziyang Peng; Lulu Guo; Jitendra Ahirwal; Weixing Liu; Lingli Liu
Source:
Global change biology 2022 v.28 no.15 pp. 4655-4667
ISSN:
1354-1013
Subject:
microbial biomass,   etc   ; climate change; ecosystems; grasslands; greenhouse gases; microbial nitrogen; snow; spring; winter;     Show all 9 Subjects
Abstract:
... Seasonal differences in plant and microbial nitrogen (N) acquisition are believed to be a major mechanism that maximizes ecosystem N retention. There is also a concern that climate change may interrupt the delicate balance in N allocation between plants and microbes. Yet, convincing experimental evidence is still lacking. Using a ¹⁵N tracer, we assessed how deepened snow affects the temporal coupl ...
DOI:
10.1111/gcb.16234

15. Earthworms as catalysts in the formation and stabilization of soil microbial necromass

Author:
Gerrit Angst; Jan Frouz; Jan Willem van Groenigen; Stefan Scheu; Ingrid Kögel‐Knabner; Nico Eisenhauer
Source:
Global change biology 2022 v.28 no.16 pp. 4775-4782
ISSN:
1354-1013
Subject:
microbial biomass,   etc   ; bioavailability; carbon; carbon dioxide; climate change; necromass; soil; soil organic matter;     Show all 8 Subjects
Abstract:
... Microbial necromass is a central component of soil organic matter (SOM), whose management may be essential in mitigating atmospheric CO₂ concentrations and climate change. Current consensus regards the magnitude of microbial necromass production to be heavily dependent on the carbon use efficiency of microorganisms, which is strongly influenced by the quality of the organic matter inputs these org ...
DOI:
10.1111/gcb.16208

16. Land Use History Mediates Soil Biogeochemical Responses to Drought in Temperate Forest Ecosystems

Author:
Ernest D. Osburn; Julia S. Simpson; Brian D. Strahm; J. E. Barrett
Source:
Ecosystems 2022 v.25 no.1 pp. 75-90
ISSN:
1432-9840
Subject:
microbial biomass,   etc   ; climate; climate change; drought; forest succession; hydrology; land use; temperate forests;     Show all 8 Subjects
Abstract:
... Terrestrial ecosystems are experiencing increasing frequency and intensity of droughts as a result of climate change. Despite a wealth of previous studies investigating soil responses to drought, the importance of historical land use in mediating drought effects remains poorly understood. To identify interactions between drought and historical land use, we sampled soils from two adjacent forested ...
DOI:
10.1007/s10021-021-00641-9

17. Utilization of Glycine by Microorganisms along the Altitude Changbai Mountain, China: An Uptake Test Using 13C,15N Labeling and 13C-PLFA Analysis

Author:
Yan Xue; Zhijie Wu; Lili Zhang; Wei Bai; Dongpo Li; Lijie Yang; Ping Gong; Zhanbo Wei; Yuchao Song; Lei Cui; Kaikuo Wu; Furong Xiao
Source:
Forests 2022 v.13 no.2 pp. -
ISSN:
1999-4907
Subject:
microbial biomass,   etc   ; altitude; carbon; forests; microbial communities; mineralization; organic nitrogen; phospholipid fatty acids; China;     Show all 9 Subjects
Abstract:
... External organic nitrogen (N) inputs can contrastingly affect the transformation and availability of N in forest soils, which is an important potential N resource and is possibly vulnerable to soil properties. Little is known about the transformation and availability of external small molecule organic N in forest soils and the underlying microbial mechanisms. Soil samples from Changbai Mountain at ...
DOI:
10.3390/f13020307

18. Acquisition pattern of nitrogen by microorganisms and plants affected by gravel mulch in a semiarid Tibetan grassland

Author:
Bo Pang; Xingxing Ma; Jiangtao Hong; Xin Xu; Xiaoke Zhang; Xiaodan Wang
Source:
Science of the total environment 2022 v.830 pp. 154635
ISSN:
0048-9697
Subject:
microbial biomass,   etc   ; Stipa purpurea; absorption; environment; grasslands; gravel; land restoration; mulches; nitrogen; phytomass; soil;     Show all 11 Subjects
Abstract:
... As an important coarse inorganic fraction of soil, gravel may regulate the effects of the interaction between above- and belowground communities and affect the relationship between microorganisms and plants in alpine ecosystems. However, comparatively little is known about the effects of gravel on the acquisition pattern of nitrogen (N) by microorganisms and plants in alpine ecosystems. In this st ...
DOI:
10.1016/j.scitotenv.2022.154635

19. Decreased growth of wild soil microbes after 15 years of transplant‐induced warming in a montane meadow

Author:
Alicia M. Purcell; Michaela Hayer; Benjamin J. Koch; Rebecca L. Mau; Steven J. Blazewicz; Paul Dijkstra; Michelle C. Mack; Jane C. Marks; Ember M. Morrissey; Jennifer Pett‐Ridge; Rachel L. Rubin; Egbert Schwartz; Natasja C. van Gestel; Bruce A. Hungate
Source:
Global change biology 2022 v.28 no.1 pp. 128-139
ISSN:
1354-1013
Subject:
microbial biomass,   etc   ; biodiversity; carbon; climate; ecosystems; meadows; microbial communities; phytomass; soil; soil carbon; temperature;     Show all 11 Subjects
Abstract:
... The carbon stored in soil exceeds that of plant biomass and atmospheric carbon and its stability can impact global climate. Growth of decomposer microorganisms mediates both the accrual and loss of soil carbon. Growth is sensitive to temperature and given the vast biological diversity of soil microorganisms, the response of decomposer growth rates to warming may be strongly idiosyncratic, varying ...
DOI:
10.1111/gcb.15911

20. Stoichiometric theory shapes enzyme kinetics in paddy bulk soil but not in rhizosphere soil

Author:
Yuhuai Liu; Muhammad Shahbaz; Yunying Fang; Baozhen Li; Xiaomeng Wei; Zhenke Zhu; Tin Mar Lynn; Shunbao Lu; Olga Shibistova; Jinshui Wu; Georg Guggenberger; Tida Ge
Source:
Land degradation & development 2022 v.33 no.2 pp. 246-256
ISSN:
1085-3278
Subject:
microbial biomass,   etc   ; cellulose; enzyme kinetics; hydrolases; land degradation; paddies; paddy soils; phosphorus; rhizosphere; stoichiometry;     Show all 10 Subjects
Abstract:
... The available carbon (C) to phosphorus (P) ratio in the soil is regulated by extracellular hydrolases for C and P acquisition by microbes and plants. However, the stoichiometric relationship between acquiring C and P in paddy rhizosphere and bulk soils remains unclear. The objective was to explore the underlying mechanisms of C and P acquisition stoichiometry in rhizosphere and bulk soils in respo ...
DOI:
10.1002/ldr.4141