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1. Shifts in plant–microbe interactions over community succession and their effects on plant resistance to herbivores

Author:
Howard, Mia M.; Kao‐Kniffin, Jenny; Kessler, André
Source:
Thenew phytologist 2020 v.226 no.4 pp. 1144-1157
ISSN:
0028-646X
Subject:
soil microorganisms,   etc   ; Solidago altissima; field experimentation; herbivores; microbial communities; microbiome; phenotype; rhizosphere; soil;     Show all 9 Subjects
Abstract:
... Soil microorganisms can influence the development of complex plant phenotypes, including resistance to herbivores. This microbiome‐mediated plasticity may be particularly important for plant species that persist in environments with drastically changing herbivore pressure, for example over community succession. We established a 15‐yr gradient of old‐field succession to examine the herbivore resist ...
DOI:
10.1111/nph.16430

2. The effect of organic acids on the behaviour and biodegradation of 14C-phenanthrene in contaminated soil

Author:
Vázquez-Cuevas, Gabriela M.; Lag-Brotons, Alfonso J.; Ortega-Calvo, Jose J.; Stevens, Carly J.; Semple, Kirk T.
Source:
Soil biology & biochemistry 2020 v.143 pp. 107722
ISSN:
0038-0717
Subject:
soil microorganisms,   etc   ; bioavailability; biodegradation; desorption; exudation; hydrocarbons; malic acid; pollutants; polluted soils; rhizosphere; root exudates;     Show all 11 Subjects
Abstract:
... The interaction between root exudates and soil microbes has been hypothesised as the primary mechanism for the biodegradation of organic pollutants in the rhizosphere. However, the mechanisms governing this loss process are not completely understood. This study aimed to investigate the effect of two important compounds within root exudates (citric and malic acid) on ¹⁴C-phenanthrene desorption and ...
DOI:
10.1016/j.soilbio.2020.107722

3. Pectin drives microbial phosphorus solubilization in soil: Evidence from isolation-based and community-scale approaches

Author:
Mise, Kazumori; Koyama, Yuki; Matsumoto, Arisa; Fujita, Kazuki; Kunito, Takashi; Senoo, Keishi; Otsuka, Shigeto
Source:
European journal of soil biology 2020 v.97 pp. 103169
ISSN:
1164-5563
Subject:
soil microorganisms,   etc   ; coevolution; genes; genomics; metal ions; microbial biomass; oxides; pectins; phosphates; phosphorus; rhizosphere; soil; solubilization;     Show all 13 Subjects
Abstract:
... A considerable part of soil phosphorus is bound to metal cations or metal oxides, and cannot be used in these forms by soil microbes and plants. Phosphate-solubilizing bacteria (PSB) are abundant in pectin-rich rhizosphere, and their pectin-degrading activity has been reported. Therefore, we hypothesized that pectin activates PSB and promotes soil phosphorus solubilization. To test this hypothesis ...
DOI:
10.1016/j.ejsobi.2020.103169

4. Plant root exudation under drought: implications for ecosystem functioning

Author:
Williams, Alex; de Vries, Franciska T.
Source:
Thenew phytologist 2020 v.225 no.5 pp. 1899-1905
ISSN:
0028-646X
Subject:
soil microorganisms,   etc   ; beneficial microorganisms; drought; ecological footprint; ecosystems; exudation; regrowth; root exudates; roots;     Show all 9 Subjects
Abstract:
... Root exudates are a pathway for plant–microbial communication and play a key role in ecosystem response to environmental change. Here, we collate recent evidence that shows that plants of different growth strategies differ in their root exudation, that root exudates can select for beneficial soil microbial communities, and that drought affects the quantity and quality of root exudation. We use thi ...
DOI:
10.1111/nph.16223

5. Emerging perfluoroalkyl substance impacts soil microbial community and ammonia oxidation

Author:
Ke, Yanchu; Chen, Jianfei; Hu, Xiaoyan; Tong, Tianli; Huang, Jun; Xie, Shuguang
Source:
Environmental pollution 2020 v.257 pp. 113615
ISSN:
0269-7491
Subject:
soil microorganisms,   etc   ; Archaea; ammonia; bacteria; bioaccumulation; dose response; grassland soils; oxidation; perfluorocarbons; physicochemical properties; sulfonates; toxicity;     Show all 12 Subjects
Abstract:
... Legacy perfluoroalkyl and poly-fluoroalkyl substances (PFASs) are gradually phased out because of their persistence, bioaccumulation, toxicity, long-distance transport and ubiquity in the environment. Alternatively, emerging PFASs are manufactured and released into the environment. It is accepted that PFASs can impact microbiota, although it is still unclear whether emerging PFASs are toxic toward ...
DOI:
10.1016/j.envpol.2019.113615

6. Possibility of Reducing Soil Allelotoxicity for Grain Crops

Author:
Fedotov, G. N.; Gorepekin, I. V.; Lysak, L. V.
Source:
Eurasian soil science 2020 v.53 no.1 pp. 110-116
ISSN:
1064-2293
Subject:
soil microorganisms,   etc   ; Chernozems; autoclaving; electric current; freezing; grain crops; gray forest soils; whey;     Show all 8 Subjects
Abstract:
... The results of experiments on possible reduction of soil allelotoxicity level for grain crops are presented. It was found that autoclaving of soils significantly reduces their allelotoxicity, while transmission of weak electric current through the soil, as well as soil freezing and lime application do not really affect their allelotoxicity. A significant decrease in soil allelotoxicity may be achi ...
DOI:
10.1134/S106422932001007X

7. ‘Home’ and ‘away’ litter decomposition depends on the size fractions of the soil biotic community

Author:
Li, Yingbin; Veen, G.F. (Ciska); Hol, W.H. Gera; Vandenbrande, Simon; Hannula, S. Emilia; ten Hooven, Freddy C.; Li, Qi; Liang, Wenju; Bezemer, T. Martijn
Source:
Soil biology & biochemistry 2020 v.144 pp. 107783
ISSN:
0038-0717
Subject:
soil microorganisms,   etc   ; Jacobaea vulgaris; Tanacetum vulgare; body size; forbs; fungal communities; grasslands; plant litter; sieves; soil biota; soil ecology; Netherlands;     Show all 12 Subjects
Abstract:
... The ‘home-field advantage’ (HFA) hypothesis predicts that litter decomposition is accelerated in its home environment (i.e. in conspecific soil). Soil organisms play a key role in driving such HFA effects. Soil biota have a large range of body sizes, referred to as size fractions, which may influence their roles in the decomposition process and in the generation of HFA effects. However, how HFA ef ...
DOI:
10.1016/j.soilbio.2020.107783

8. Pilot-scale electro-bioremediation of heavily PAH-contaminated soil from an abandoned coking plant site

Author:
Li, Fengmei; Guo, Shuhai; Wu, Bo; Wang, Sa
Source:
Chemosphere 2020 v.244 pp. 125467
ISSN:
0045-6535
Subject:
soil microorganisms,   etc   ; bioremediation; electric field; environmental factors; polluted soils; polycyclic aromatic hydrocarbons; rain; risk; soil pH; temperature; toxicity; China;     Show all 12 Subjects
Abstract:
... This study presents a systematic pilot-scale study on removal of PAHs from the abandoned site of Shenyang former Coking Plant in China (total PAH concentration of 5635.60 mg kg⁻¹ in soil). Three treatments, including the control treatment (without inoculation and electric field), bioremediation (with inoculation), and the electro-bioremediation (with inoculation and electric field), were conducted ...
DOI:
10.1016/j.chemosphere.2019.125467

9. Environmental fate and impacts of microplastics in soil ecosystems: Progress and perspective

Author:
Wang, Wenfeng; Ge, Jing; Yu, Xiangyang; Li, Hui
Source:
The Science of the total environment 2020 v.708 pp. 134841
ISSN:
0048-9697
Subject:
soil microorganisms,   etc   ; ecotoxicology; edaphic factors; environmental fate; marine environment; microplastics; plants (botany); pollution; soil; soil ecosystems; soil fauna; wastes;     Show all 12 Subjects
Abstract:
... The wide and intensive application of plastics and their derived products has resulted in global environmental contamination of plastic waste. Large-sized plastic litter can be fragmented into microplastics (<5 mm), which have attracted increasing concerns from the general public and scientific communities worldwide. Until recently, the majority of microplastics research reported in literatures ha ...
DOI:
10.1016/j.scitotenv.2019.134841

10. A multidisciplinary assessment of the impact of spilled acids on geoecosystems: an overview

Author:
Hyun, Sung Pil; Shin, Doyun; Moon, Hee Sun; Han, Young-Soo; Ha, Seonjin; Lee, Yoonho; Lee, Eunhee; Jung, Hyun; Hwang, Yu Sik
Source:
Environmental science and pollution research international 2020 v.27 no.9 pp. 9803-9817
ISSN:
0944-1344
Subject:
soil microorganisms,   etc   ; acids; arsenic; ecotoxicology; habitats; minerals; moieties; neutralization; organic matter; protonation; risk assessment; soil sampling; titration;     Show all 13 Subjects
Abstract:
... We developed and applied a multidisciplinary approach to the impact of an accidentally spilled acid on the underlying geomedia and subsurface environment, based on the concept of geoecosystem. We used mineralogical, geochemical, microbiological, and ecotoxicological techniques to identify and assess the multiple aspects involved. First, we constructed a conceptual model for the acid interactions w ...
DOI:
10.1007/s11356-019-07586-6

11. Responses of soil extracellular enzyme activities and microbial community properties to interaction between nitrogen addition and increased precipitation in a semi-arid grassland ecosystem

Author:
Ma, Wenjun; Li, Jian; Gao, Ying; Xing, Fu; Sun, Shengnan; Zhang, Tao; Zhu, Xingzun; Chen, Chen; Li, Zhuo
Source:
The Science of the total environment 2020 v.703 pp. 134691
ISSN:
0048-9697
Subject:
soil microorganisms,   etc   ; arid lands; biogeochemistry; ecosystems; enzyme activity; genes; grasslands; microbial communities; nitrogen; phosphorus; prediction; rain; soil; soil enzymes;     Show all 14 Subjects
Abstract:
... Both atmospheric nitrogen (N) deposition and precipitation can strongly impact below-ground biogeochemical processes. Soil extracellular enzymes activities (EEAs) and microorganisms are considered as the key agents in ecosystem nutrient cycling. However, how the interaction between increasing N deposition and precipitation may affect soil EEAs and microbes remain poorly understood. In a 5-year fie ...
DOI:
10.1016/j.scitotenv.2019.134691

12. Biotransformation of phosphorus in enhanced biological phosphorus removal sludge biochar

Author:
Qian, Tingting; Lu, Dan; Soh, Yan Ni Annie; Webster, Richard D.; Zhou, Yan
Source:
Water research 2020 v.169 pp. 115255
ISSN:
0043-1354
Subject:
soil microorganisms,   etc   ; Pseudomonas putida; bacteria; biochar; biotransformation; free radicals; orthophosphates; oxidative stress; phosphorus; phosphorus fertilizers; polyphosphates; sludge; soil; soil remediation;     Show all 14 Subjects
Abstract:
... Biochar derived from enhanced biological phosphorus removal (EBPR) sludge could be a potential phosphorus (P) fertilizer. Soil microorganisms play a regulating role on the turnover of P in soil. When the EBPR sludge biochar is added to soil, it would inevitably interact with soil microorganisms. Thus, for the wise use of the EBPR sludge biochar, it is imperative to understand the interaction betwe ...
DOI:
10.1016/j.watres.2019.115255

13. Comparison of Cu salts and commercial Cu based fungicides on toxicity towards microorganisms in soil

Author:
Vázquez-Blanco, Raquel; Arias-Estévez, Manuel; Bååth, Erland; Fernández-Calviño, David
Source:
Environmental pollution 2020 v.257 pp. 113585
ISSN:
0269-7491
Subject:
soil microorganisms,   etc   ; bacterial growth; copper; fungal communities; fungal growth; fungicides; nitrates; pollution; risk assessment; soil pH; soil respiration; sulfates; toxicity;     Show all 13 Subjects
Abstract:
... Microbial responses to Cu pollution as a function of Cu sources (Cu salts and commercial Cu fungicides) were assessed in a soil using basal soil respiration, and bacterial and fungal community growth, as endpoints. The soil was amended with different concentrations (0–32 mmol Cu kg⁻¹) of Cu nitrate, Cu sulfate, Bordeaux mixture and 3 types of Cu oxychloride. Cu salts decreased soil pH, while this ...
DOI:
10.1016/j.envpol.2019.113585

14. The Role of Biochar in Reducing the Bioavailability and Migration of Persistent Organic Pollutants in Soil–Plant Systems: A Review

Author:
Ni, Ni; Kong, Deyang; Wu, Wenzhu; He, Jian; Shan, Zhengjun; Li, Juying; Dou, Yezhi; Zhang, Yueqing; Song, Yang; Jiang, Xin
Source:
Bulletin of environmental contamination and toxicology 2020 v.104 no.2 pp. 157-165
ISSN:
0007-4861
Subject:
soil microorganisms,   etc   ; agricultural land; bioavailability; biochar; biodegradation; environmental fate; persistent organic pollutants; polluted soils; remediation; rhizosphere; synergism;     Show all 11 Subjects
Abstract:
... The amendment of biochar in soils contaminated with persistent organic pollutants (POPs) is an environmentally friendly in situ remediation measure. Numerous studies focused on the application of biochars to reduce the uptake of POPs by plants in soils. In this review, we summarized the role of biochar in reducing the migration of POPs in soil–plant systems. The mechanisms of biochar reducing the ...
DOI:
10.1007/s00128-019-02779-8

15. Winning and losing with microbes: how microbially mediated fitness differences influence plant diversity

Author:
Kandlikar, Gaurav S.; Johnson, Christopher A.; Yan, Xinyi; Kraft, Nathan J. B.; Levine, Jonathan M.
Source:
Ecology letters 2019 v.22 no.8 pp. 1178-1191
ISSN:
1461-023X
Subject:
soil microorganisms,   etc   ; empirical research; population dynamics; species diversity;     Show all 4 Subjects
Abstract:
... Interactions between plants and soil microbes can strongly influence plant diversity and community dynamics. Soil microbes may promote plant diversity by driving negative frequency‐dependent plant population dynamics, or may favor species exclusion by providing one species an average fitness advantage over others. However, past empirical research has focused overwhelmingly on the consequences of f ...
DOI:
10.1111/ele.13280

16. LC-MS analysis of the degradation products of a sprayable, biodegradable poly(ester-urethane-urea)

Author:
Borrowman, Cuyler K.; Bücking, Mark; Göckener, Bernd; Adhikari, Raju; Saito, Kei; Patti, Antonio F.
Source:
Polymer degradation and stability 2020 v.178 pp. 109218
ISSN:
0141-3910
Subject:
soil microorganisms,   etc   ; alcohols; ammonia; ammonium; biodegradability; biomass; carbon dioxide; edaphic factors; gel chromatography; hexanoic acid; mass spectrometry; mineralization; moieties; molecular weight; nitrates; polymers; soil;     Show all 17 Subjects
Abstract:
... Biodegradable polymers must degrade completely to CO₂, H₂O, small and non-toxic molecules (e.g. NO₃⁻ and NH₃/NH₄⁺), and biomass on a similar timescale to classically compostable materials (3–12 months). More importantly, the degradation intermediates - the compounds that form as a polymeric material breaks down in the environment, before being mineralized or bio-assimilated also need to be non-tox ...
DOI:
10.1016/j.polymdegradstab.2020.109218

17. Long-term effects of copper exposure to agricultural soil function and microbial community structure at a controlled and experimental field site

Author:
Shaw, J.L.A.; Ernakovich, J.G.; Judy, J.D.; Farrell, M.; Whatmuff, M.; Kirby, J.
Source:
Environmental pollution 2020 v.263 pp. 114411
ISSN:
0269-7491
Subject:
soil microorganisms,   etc   ; agricultural soils; community structure; copper; dormancy; environmental DNA; heavy metals; long term effects; microbial communities; prediction; soil function; species diversity;     Show all 12 Subjects
Abstract:
... The long-term effect of heavy metals on soil microbial communities and their function is relatively unknown and little work has been done in field settings. To address this gap, we revisited a field-based experiment, 12 years after the application of copper (Cu) to agricultural soils, with treatment concentrations ranging from 0 to 3310 mg Cu kg⁻¹ soil. We measured the long-term effects of Cu expo ...
DOI:
10.1016/j.envpol.2020.114411

18. Microbial remediation of a pentachloronitrobenzene-contaminated soil under Panax notoginseng: A field experiment

Author:
ZHANG, Ning; GUO, Dong; ZHU, Ye; WANG, Xiaomi; ZHU, Lingjia; LIU, Fang; TENG, Ying; CHRISTIE, Peter; LI, Zhengao; LUO, Yongming
Source:
Pedosphere 2020 v.30 no.4 pp. 563-569
ISSN:
1002-0160
Subject:
soil microorganisms,   etc   ; Actinobacteria; Cupriavidus; Panax; bacteria; biodiversity; catalase; enzyme activity; esterases; field experimentation; fluorescein diacetate; fungi; gas chromatography; inoculum; phytomass; quintozene; remediation; soil; soil enzymes; spectroscopy;     Show all 20 Subjects
Abstract:
... Pentachloronitrobenzene (PCNB) is an organochlorine fungicide that is mainly used in the prevention and control of diseases in crop seedlings. Microbial removal is used as a promising method for in-situ removal of many organic pesticides and pesticide residues. A short-term field experiment (1 year) was conducted to explore the potential role of a PCNB-degrading bacterial isolate, Cupriavidus sp. ...
DOI:
10.1016/S1002-0160(17)60476-4

19. The influence of light combination on the physicochemical characteristics and enzymatic activity of soil with multi-metal pollution in phytoremediation

Author:
Luo, Jie; Cao, Min; Zhang, Chunming; Wu, Jian; Gu, X.W. Sophie.
Source:
Journal of hazardous materials 2020 v.393 pp. 122406
ISSN:
0304-3894
Subject:
soil microorganisms,   etc   ; Noccaea caerulescens; biomass production; blue light; carbohydrates; chlorophyll; enzyme activity; enzymes; excretion; irradiation; leaching; lipid peroxidation; metals; oxidation; phytoremediation; pollution; red light; risk; soil; soil enzymes;     Show all 20 Subjects
Abstract:
... Light irradiation with suitable quality and intensity could influence the success of phytoremediation by improving the biomass yield of plants. However, mechanisms involved in this influence on the contaminant accumulation and translocation ability of plants have rarely been studied. Five light combinations with different red (R) and blue (B) ratios (0, 10, 50, 75 and 100 % blue) at the same inten ...
DOI:
10.1016/j.jhazmat.2020.122406

20. Changes in N supply pathways under different long-term fertilization regimes in Northeast China

Author:
Ma, Qiang; Li, Shuailin; Xu, Zhiqiang; Fan, Shaobo; Xia, Zhuqing; Zhou, Changrui; Zhu, Mengmeng; Yu, Wantai
Source:
Soil & tillage research 2020 v.201 pp. 104609
ISSN:
0167-1987
Subject:
soil microorganisms,   etc   ; ammonium; clay; clay minerals; corn; fertilizer application; long term experiments; microbial biomass; mineral content; mineralization; nitrogen cycle; nutrient use efficiency; organic matter; soil; China;     Show all 15 Subjects
Abstract:
... Different long-term fertilization regimes probably influence N supplying capacity and N cycling processes in soils. However, the effects of fertilization regimes on the pathways of N retention and supply and the impacts of these pathways on crop N uptake remain undocumented. In this study, the contributions of different pathways to N retention and supply were investigated on the basis of a long-te ...
DOI:
10.1016/j.still.2020.104609