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Sun G, Niu S, Chen T. Synthesis of a novel magnetic calcium-rich biochar nanocomposite for efficient removal of phosphate from aqueous solution. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:283. [PMID: 38963423 DOI: 10.1007/s10653-024-02056-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 05/28/2024] [Indexed: 07/05/2024]
Abstract
Phosphorus (P) scarcity and eutrophication have triggered the development of new materials for P recovery. In this work, a novel magnetic calcium-rich biochar nanocomposite (MCRB) was prepared through co-precipitation of crab shell derived biochar, Fe2+ and Fe3+. Characteristics of the material demonstrated that the MCRB was rich in calcite and that the Fe3O4 NPs with a diameter range of 18-22 nanometers were uniformly adhered on the biochar surface by strong ether linking (C-O-Fe). Batch tests demonstrated that the removal of P was pH dependent with an optimal pH of 3-7. The MCRB exhibited a superior P removal performance, with a maximum removal capacity of 105.6 mg g-1, which was even higher than the majority lanthanum containing compounds. Study of the removal mechanisms revealed that the P removal by MCRB involved the formation of hydroxyapatite (HAP-Ca5(PO4)3OH), electrostatic attraction and ligand exchange. The recyclability test demonstrated that a certain level (approximately 60%) was still maintained even after the six adsorption-desorption process, suggesting that MCRB is a promising material for P removal from wastewater.
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Affiliation(s)
- Guangyin Sun
- Hebei Technology Innovation Center of Water Pollution Control and Water Ecological Remediation, College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, Hebei Province, 056038, China
| | - Shaojun Niu
- Hebei Technology Innovation Center of Water Pollution Control and Water Ecological Remediation, College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, Hebei Province, 056038, China
| | - Tao Chen
- Hebei Technology Innovation Center of Water Pollution Control and Water Ecological Remediation, College of Energy and Environmental Engineering, Hebei University of Engineering, Handan, Hebei Province, 056038, China.
- The Key Laboratory of Water and Sediment Sciences, Ministry of Education, School of Environment, Beijing Normal University, Beijing, 100875, China.
- College of Energy and Environmental Engineering, Hebei University of Engineering, No 19, Taiji Road, Handan, Hebei, 056038, China.
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2
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Han D, Zhang D, Han D, Ren H, Wang Z, Zhu Z, Sun H, Wang L, Qu Z, Lu W, Yuan M. Effects of salt stress on soil enzyme activities and rhizosphere microbial structure in salt-tolerant and -sensitive soybean. Sci Rep 2023; 13:17057. [PMID: 37816809 PMCID: PMC10564926 DOI: 10.1038/s41598-023-44266-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/05/2023] [Indexed: 10/12/2023] Open
Abstract
Salt is recognized as one of the most major factors that limits soybean yield in acidic soils. Soil enzyme activity and bacterial community have a critical function in improving the tolerance to soybean. Our aim was to assess the activities of soil enzyme, the structure of bacteria and their potential functions for salt resistance between Salt-tolerant (Salt-T) and -sensitive (Salt-S) soybean genotypes when subject to salt stress. Plant biomass, soil physicochemical properties, soil catalase, urease, sucrase, amylase, and acid phosphatase activities, and rhizosphere microbial characteristics were investigated in Salt-T and Salt-S soybean genotypes under salt stress with a pot experiment. Salt stress significantly decreased the soil enzyme activities and changed the rhizosphere microbial structure in a genotype-dependent manner. In addition, 46 ASVs which were enriched in the Salt-T geotype under the salt stress, such as ASV19 (Alicyclobacillus), ASV132 (Tumebacillus), ASV1760 (Mycobacterium) and ASV1357 (Bacillus), which may enhance the tolerance to soybean under salt stress. Moreover, the network structure of Salt-T soybean was simplified by salt stress, which may result in soil bacterial communities being susceptible to external factors. Salt stress altered the strength of soil enzyme activities and the assembly of microbial structure in Salt-T and Salt-S soybean genotypes. Na+, NO3--N, NH4+-N and Olsen-P were the most important driving factors in the structure of bacterial community in both genotypes. Salt-T genotypes enriched several microorganisms that contributed to enhance salt tolerance in soybeans, such as Alicyclobacillus, Tumebacillus, and Bacillus. Nevertheless, the simplified network structure of salt-T genotype due to salt stress may render its bacterial community structure unstable and susceptible.
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Affiliation(s)
- Dongwei Han
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Di Zhang
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Dezhi Han
- Heihe Branch of Heilongjiang Academy of Agricultural Sciences, Heihe, China
| | - Honglei Ren
- Soybean Research Institute, Heilongjiang Academy of Agriculture Sciences, Harbin, China
| | - Zhen Wang
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Zhijia Zhu
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Haoyue Sun
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Lianxia Wang
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Zhongcheng Qu
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, China
| | - Wencheng Lu
- Heihe Branch of Heilongjiang Academy of Agricultural Sciences, Heihe, China.
| | - Ming Yuan
- Qiqihar Branch of Heilongjiang Academy of Agricultural Sciences, Qiqihar, China.
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Chengatt AP, Sarath NG, Sebastian DP, Mohanan NS, Sindhu ES, George S, Puthur JT. Chelate assisted phytoextraction for effective rehabilitation of heavy metal(loid)s contaminated lands. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 25:981-996. [PMID: 36148488 DOI: 10.1080/15226514.2022.2124233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The contamination of lands and water by heavy toxic metal(loid)s is an environmental issue that needs serious attention as it poses a major threat to public health. The persistence of heavy metals/metalloids in the environment as well as their potentially dangerous effects on organisms underpins the need to restore the areas contaminated by heavy toxic metal(loid)s. Soil restoration can be achieved through a variety of different methods. Being more cost-effective and environmentally sustainable, phytoremediation has recently replaced traditional processes like soil washing and burning. Many plants have been intensively explored to eliminate various heavy metals from polluted soils through phytoextraction, which is a commonly used phytoremediation approach. The ability of chelants to enhance phytoextraction potential has also received wide attention owing to their ability to elevate the efficiency of plants in removing heavy metal(loid)s. Chelants have been found to improve plant growth and the activity of the defense system. Several chelants, either non-biodegradable or biodegradable, have been reported to augment the phytoextraction efficiencies of various plants. The problem of the leaching of heavy metal(loid)s and secondary pollution caused by non-biodegradable chelants can be overcome by the use of biodegradable chelants to an extent. This review is a brief report focusing on recent articles on chelate-assisted phytoextraction of heavy metal (loids) As, Cd, Cu, Cr, Hg, Ni, Pb, U, and Zn.
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Affiliation(s)
| | - Nair G Sarath
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, Kozhikode, India
| | | | | | - E S Sindhu
- Department of Botany, St. Joseph's College (Autonomous), Kozhikode, India
| | - Satheesh George
- Department of Botany, St. Joseph's College (Autonomous), Kozhikode, India
| | - Jos T Puthur
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, Kozhikode, India
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4
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Hao Y, Ma H, Wang Q, Zhu C, He A. Complexation behaviour and removal of organic-Cr(III) complexes from the environment: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 240:113676. [PMID: 35653974 DOI: 10.1016/j.ecoenv.2022.113676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Chromium (Cr) is mainly found in the form of organic-Cr(III) complexes in the natural environment and industrial waste. The widespread existence of composite contaminants composed of organic matter (OM) and Cr pose a serious ecological threat, and its potential interaction and removal need to be further summarised. Organic ligands, such as carbohydrates, nitrogen compounds, phenolic compounds, humus substances (HS), and low molecular weight organic acids (LMWOAs), play an important role in governing the speciation, mobility, and absorption and desorption of Cr in the environment. Moreover, growing evidence indicates that oxygen-containing functional groups (e.g., carboxyl, hydroxyl, and phosphate) are closely related to the complexation of Cr(III). Advanced oxidation processes (AOPs) are efficient and widely applicable technologies. However, the re-complexation of oxidation intermediates with Cr(III) and the formation and accumulation of much more toxic Cr(VI) species hinder the possible utilisation of AOPs. In this paper, the sources and harmful effects of organic-Cr(III) complexes are reported in detail. The complexation behaviour and structure of the organic-Cr(III) complexes are also described. Subsequently, the application of AOPs in the decomplexation and degradation of organic-Cr(III) complexes is summarised. This review can be helpful for developing technologies that are more efficient for organic-Cr(III) complex removal and establishing the scientific background for reducing Cr discharge Cr into the environment.
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Affiliation(s)
- Yongyong Hao
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Hongrui Ma
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Qing Wang
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Chao Zhu
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China.
| | - Anqi He
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
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KC S, Long L, Liu M, Zhang Q, Ruan J. Light Intensity Modulates the Effect of Phosphate Limitation on Carbohydrates, Amino Acids, and Catechins in Tea Plants ( Camellia sinensis L.). FRONTIERS IN PLANT SCIENCE 2021; 12:743781. [PMID: 34691121 PMCID: PMC8532574 DOI: 10.3389/fpls.2021.743781] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Metabolites are major contributors to the quality of tea that are regulated by various abiotic stresses. Light intensity and phosphorus (P) supply affect the metabolism of tea plants. However, how these two factors interact and mediate the metabolite levels in tea plants are not fully understood. The present study investigated the consequences of different light intensity and P regimes on the metabolism of carbohydrates, amino acids, and flavonoids in the Fengqing tea cultivar. The leaves and young shoots were subjected to untargeted metabolomics analysis by two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC-TOF/MS), ultra-performance liquid chromatography-quadrupole-TOF/MS (UPLC-Q-TOF/MS), and targeted analysis by high-performance liquid chromatography (HPLC) along with quantification of gene expression by quantitative real time-PCR (qRT-PCR). The results from young shoots showed that amino acids, pentose phosphate, and flavonol glycosides pathways were enhanced in response to decreasing light intensities and P deficiency. The expression of the genes hexokinase 1, ribose 5-phosphate isomerase A (RPIA), glutamate synthetase 1 (GS1), prolyl 4-hydroxylase (P4H), and arginase was induced by P limitation, thereafter affecting carbohydrates and amino acids metabolism, where shading modulated the responses of transcripts and corresponding metabolites caused by P deficiency. P deprivation repressed the expression of Pi transport, stress, sensing, and signaling (SPX2) and induced bidirectional sugar transporter (SWEET3) and amino acid permeases (AAP) which ultimately caused an increase in the amino acids: glutamate (Glu), proline (Pro), and arginine (Arg) under shading but decreased catechins [epicatechingallate (ECG) and Gallic acid, GA] content in young shoots.
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6
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Paul CS, Mercl F, Száková J, Tejnecký V, Tlustoš P. The role of low molecular weight organic acids in the release of phosphorus from sewage sludge-based biochar. ALL LIFE 2021. [DOI: 10.1080/26895293.2021.1932611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Chandra Sekhar Paul
- Department of Agro-environmental Chemistry and Plant Nutrition, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Filip Mercl
- Department of Agro-environmental Chemistry and Plant Nutrition, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Jiřina Száková
- Department of Agro-environmental Chemistry and Plant Nutrition, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Václav Tejnecký
- Department of Soil Science and Soil Protection, Czech University of Life Sciences Prague, Prague, Czech Republic
| | - Pavel Tlustoš
- Department of Agro-environmental Chemistry and Plant Nutrition, Czech University of Life Sciences Prague, Prague, Czech Republic
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7
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Single and Binary Fe- and Al-hydroxides Affect Potential Phosphorus Mobilization and Transfer from Pools of Different Availability. SOIL SYSTEMS 2021. [DOI: 10.3390/soilsystems5020033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Phosphorus (P) fixation is a global problem for soil fertility and negatively impacts agricultural productivity. This study characterizes P desorption of already fixed P by using KCl, KNO3, histidine, and malic acid as inorganic and organic compounds, which are quite common in soil. Goethite, gibbsite, and ferrihydrite, as well as hydroxide mixtures with varying Fe- and Al-ratio were selected as model substances of crystalline and amorphous Fe- and Al-hydroxides. Especially two- and multi-component hydroxide systems are common in soils, but they have barely been included in desorption studies. Goethite showed the highest desorption in the range from 70.4 to 81.0%, followed by gibbsite with values in the range from 50.7 to 42.6%. Ferrihydrite had distinctive lower desorption in the range from 11.8 to 1.9%. Within the group of the amorphous Fe-Al-hydroxide mixtures, P desorption was lowest at the balanced mixture ratio for 1 Fe: 1 Al, increased either with increasing Fe or Al amount. Precipitation and steric effects were concluded to be important influencing factors. More P was released by crystalline Fe-hydroxides, and Al-hydroxides of varying crystallinity, but desorption using histidine and malic acid did not substantially influence P desorption compared to inorganic constituents.
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8
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Teng Z, Zhu J, Shao W, Zhang K, Li M, Whelan MJ. Increasing plant availability of legacy phosphorus in calcareous soils using some phosphorus activators. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 256:109952. [PMID: 31818749 DOI: 10.1016/j.jenvman.2019.109952] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/26/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
Legacy phosphorus (P) in soil, accumulated over several years of fertilizer application in excess of crop demand, represents a huge and largely untapped resource. P activators can increase the availability of this P to plants by accelerating its transformation into soluble P fractions. In this study, we evaluated the potentials of four "P activators" (oxalic acid, lignin, phytase and ascorbic acid) to increase plant available P in a laboratory incubation experiment with two P-deficient calcareous soils used for wheat production. Samples were analysed for Olsen P, phosphomonoesterase and with Hedley sequential P fractionation. All four treatments had significant effects on different soil P fractions. Oxalic acid mainly enhanced inorganic P (Pi) solubility from the HCl-extractable P pool. Lignin enhanced P lability from the NaOH-, HCl- and residual-P pools. Phytase and ascorbic acid principally affected the organic P fractions (Po). Oxalic acid and lignin showed most potential to improve P (H2O-P, NaHCO3-Pi and NaHCO3-Po) availability, which increased by 110-419% and 4.1-122%, respectively. These findings illustrated the potential mechanisms responsible for P release associated with different P activators and reinforced the case for their use in increasing legacy P availability for agriculture in calcareous soils.
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Affiliation(s)
- Zedong Teng
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Jing Zhu
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Hubei Institute of Urban Planning and Design, Wuhan, Hubei, 430071, China
| | - Wen Shao
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Keyao Zhang
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Min Li
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
| | - Michael J Whelan
- School of Geography, Geology and the Environment, University of Leicester, Leicester, UK
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9
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Hemati Matin N, Jalali M, Antoniadis V, Shaheen SM, Wang J, Zhang T, Wang H, Rinklebe J. Almond and walnut shell-derived biochars affect sorption-desorption, fractionation, and release of phosphorus in two different soils. CHEMOSPHERE 2020; 241:124888. [PMID: 31606574 DOI: 10.1016/j.chemosphere.2019.124888] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 09/10/2019] [Accepted: 09/16/2019] [Indexed: 06/10/2023]
Abstract
Effective soil phosphorus (P) management requires higher level of knowledge concerning its sorption-desorption, fractionation, and release, as well as its interactions with soil amendments including biochar (BC). The purpose of this research was to investigate the influence of two different BCs, derived from almond and walnut shell, on P sorption-desorption and its redistribution among the geochemical fractions in two different soils. The BCs were applied to the soils in four doses (0, 2.5, 5, and 10% w/w) and the mixtures were incubated for one month. Phosphorus sorption increased due to the addition of BCs. Phosphorus sorption data fitted well the Freundlich isotherm and were simulated by the PHREEQC software. Biochar addition increased total P and the added P was mainly distributed in the exchangeable, Fe/Al-P and the residual fractions. Also, BC addition resulted in an increase in the water-soluble-, mobile-, and Olsen-P, making P more available for plant uptake. The kinetics data were well described by the simple Elovich, pseudo-second-order, and intra-particle diffusion equations. Walnut BC-added soils had higher P sorption capacity than those added with the almond BC. The results suggest that BC binds soil P and releases it gradually back into solution, making it thus available to plants; this renders the studied BCs promising materials for protecting P from being lost out of soil. Future research must be conducted over longer-term experiments that would study P dynamics in BC-added soils under real field conditions.
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Affiliation(s)
- Narges Hemati Matin
- Department of Soil Science, College of Agriculture, Bu-Ali Sina University, Hamadan, Iran.
| | - Mohsen Jalali
- Department of Soil Science, College of Agriculture, Bu-Ali Sina University, Hamadan, Iran.
| | - Vasileios Antoniadis
- University of Thessaly, Department of Agriculture Crop Production and Rural Environment, Volos, Greece.
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33516, Kafr El-Sheikh, Egypt.
| | - Jianxu Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, 550082, Guiyang, PR China; University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany
| | - Tao Zhang
- Beijing Key Laboratory of Farmland Soil Pollution Prevention and Remediation, Key Laboratory of Plant-Soil Interactions of Ministry of Education, Biomass Engineering Center, College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China; National Institute for Green Agriculture Development, China Agricultural University, Beijing, 100193, China
| | - Hailong Wang
- Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, Zhejiang, 311300, China; School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, 98 Gunja-Dong, Seoul, Republic of Korea.
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Xie F, Zhang J, Chen J, Wang J, Wu L. Research on Enrichment of P 2O 5 from Low-Grade Carbonaceous Phosphate Ore via Organic Acid Solution. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2019; 2019:9859580. [PMID: 30863657 PMCID: PMC6377978 DOI: 10.1155/2019/9859580] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 12/18/2018] [Accepted: 12/26/2018] [Indexed: 06/09/2023]
Abstract
The theory of using dilute organic acid solutions to leach the carbonaceous part from low-grade carbonaceous phosphate ore has been proposed by researchers as an effective approach to increase the proportion of P and to utilize the abundant low-grade resource. In this paper, a comprehensive experimental study was carried out to confirm the feasibility of organic acid leaching and investigate the optimized leaching conditions. Utilizing the low-grade carbonaceous phosphate ore produced in Zhijin, southwest of China, the effects of different types of acid, acid concentrations, reaction temperatures, reaction times, and liquid-solid ratios on leaching rate of P2O5 were evaluated using single-factor experiments and orthogonal experiments. The reaction mechanism, examined by SEM technique and the reaction thermodynamic analysis suggested that the leaching of P2O5 mainly resulted from the process of dissolution of dolomite (the main gangue mineral) in organic acid, consequently enriching the phosphate rock (the mineral of value). The effectiveness and impacts of different types of acid and reaction conditions were also studied. To conclude, this study first confirmed the viability of enriching P2O5 from low-grade ores through organic acid leaching the carbonaceous part by experimental data, and the experimental results will provide an essential scientific support for further upgrade of the technology to commercial scale utilization.
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Affiliation(s)
- Fei Xie
- Mining College, Guizhou University, Guiyang 550025, China
- Key Laboratory of Nonmetallic Mineral Resources Comprehensive Utilization, Guiyang 550025, China
- Guizhou Engineering Lab of Mineral Resources, Guiyang 550025, China
- National & Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang 550025, China
| | - Jie Zhang
- Mining College, Guizhou University, Guiyang 550025, China
- Key Laboratory of Nonmetallic Mineral Resources Comprehensive Utilization, Guiyang 550025, China
- Guizhou Engineering Lab of Mineral Resources, Guiyang 550025, China
- National & Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang 550025, China
| | - Jiyan Chen
- College of Resources and Environmental Engineering, Guizhou University, Guiyang 550025, China
| | - Jianrui Wang
- Mining College, Guizhou University, Guiyang 550025, China
- Key Laboratory of Nonmetallic Mineral Resources Comprehensive Utilization, Guiyang 550025, China
- Guizhou Engineering Lab of Mineral Resources, Guiyang 550025, China
- National & Local Joint Laboratory of Engineering for Effective Utilization of Regional Mineral Resources from Karst Areas, Guiyang 550025, China
- Editorial Department of Journal, Guiyang University, Guiyang 550005, China
| | - Lin Wu
- Bureau of Coal Geology of Guizhou Province, Guiyang 550008, China
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11
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Solubility, Diffusion and Crop Uptake of Phosphorus in Three Different Struvites. SUSTAINABILITY 2018. [DOI: 10.3390/su11010134] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Phosphate (P) fertilisers produced from waste recycling (e.g., struvite) are considered to be more sustainable than those conventionally produced from the processing of rock P (e.g., highly soluble triple superphosphate, TSP). In this study, we used 33P to monitor struvite dissolution and P diffusion into the soil in comparison to TSP. We evaluated three distinct chemical formulations of struvite, namely: (1) Crystal Green® (CG) produced in an industrial process from sewage sludge; (2) natural struvite (NS) precipitated in swine manure pipelines; and (3) laboratory precipitated struvite (PS) from chicken manure by a new process of P recovery. P diffusion was evaluated in soil columns over a 21-day period. This was complimented with a pot experiment in which wheat and soybean were cultivated in a Eutric Cambisol for 38 days in the presence of either struvite or TSP. P fertilisers were applied at a dose equivalent to 17.5 kg P ha−1 and fertiliser solubility determined by recovering soil solution. All three types of struvite tested showed reduced P solubility and mobility relative to TSP, but a comparison of the three struvites has shown that their P solubilities differed by a factor of two, with the greatest P release (up to 85% of total P) obtained from a struvite recovered from poultry manure and containing other useful nutrients (K, S and Ca). All struvites enhanced crop growth and P uptake of wheat and soybean relative to a nil P control, with up to 80% P recovery compared to TSP. These results further support the more widespread use of struvite as a sustainable source of P to plants despite its low water solubility.
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12
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Chen H, Dou J, Xu H. The effect of low-molecular-weight organic-acids (LMWOAs) on treatment of chromium-contaminated soils by compost-phytoremediation: Kinetics of the chromium release and fractionation. J Environ Sci (China) 2018; 70:45-53. [PMID: 30037410 DOI: 10.1016/j.jes.2017.11.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 11/09/2017] [Accepted: 11/09/2017] [Indexed: 05/25/2023]
Abstract
A soil-plant biological system was developed from chromium (Cr) polluted soil treated by the compost-phytoremediation method. The transformation and migration of the Cr in this system is comprehensively studied in this research. The results illustrated that the co-composting treatment can reduce the Cr availability from 39% (F1 was about 31% of total, F2 was about 8% of total) to less than 2% by stabilizing the Cr. However, herbaceous plants can accumulate the concentrations of Cr from 113.8 to 265.2mg/kg in the two crops, even though the concentration of soluble Cr in the substrate soil was below 0.1mg/L. Cr can be assimilated and easily transferred in the tissues of plants because the low-molecular-weight organic-acids (LMWOAs) derived from the plant root increase the bioavailability of Cr. The amount of extracted Cr dramatically increased when the organic acids were substituted in this order: citric acid>malic acid>tartaric acid>oxalic acid>acetic acid. On average the maximum (147.4mg/kg) and the minimum (78.75mg/kg) Cr were extracted by 20mmol/L citric acid and acetic acid, respectively. The desorption of Cr in different acid solutions can be predicted by the pseudo second-order kinetics. The exchangeable Cr, carbonate-bound Cr, and residual Cr decreased, while Fe-Mn oxide bound Cr and organic bound Cr increased in the soil solid phase. According to the experimental results, the organic acids will promote the desorption and chelation processes of Cr, leading to the remobilization of Cr in the soil.
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Affiliation(s)
- Huixia Chen
- College of Water Sciences, Beijing Normal University, Beijing 100875, China; Key Laboratory of Green Process and Engineering, Chinese Academy of Sciences, Beijing 100190, China; National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China.
| | - Junfeng Dou
- College of Water Sciences, Beijing Normal University, Beijing 100875, China.
| | - Hongbin Xu
- Key Laboratory of Green Process and Engineering, Chinese Academy of Sciences, Beijing 100190, China; National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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Xing X, Ding S, Liu L, Chen M, Yan W, Zhao L, Zhang C. Direct evidence for the enhanced acquisition of phosphorus in the rhizosphere of aquatic plants: A case study on Vallisneria natans. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 616-617:386-396. [PMID: 29127792 DOI: 10.1016/j.scitotenv.2017.10.304] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Revised: 10/20/2017] [Accepted: 10/29/2017] [Indexed: 06/07/2023]
Abstract
There are few studies about the processes and mechanisms for aquatic plants to take up phosphorus (P) in wetland soils and sediments. Direct observation of P mobilization in rhizosphere is lacking. In this study, high-resolution dialysis (HR-Peeper) and diffusive gradients in thin films (DGT) techniques were used to capture the small-scale changes of soluble reactive P (SRP) and soluble Fe, and labile P in the rhizosphere of Vallisneria natans (V. natans), respectively. The results showed 5.92- and 3.12-fold enrichments of P and Fe in the Fe plaques formed on the root surfaces, respectively, in comparison with the P and Fe concentrations in the non-rhizosphere sediments. Moreover, simultaneous releases of P and Fe appeared in rhizosphere and the SRP concentration showed up to 114-fold increases compared to the non-rhizosphere sediments. Five kinds of low-molecular weight organic acids (LMWOAs) were detected in the root exudates; oxalic acid accounted for 87.5% of the total. Extraction of Fe and P in the Fe plaques was greatly enhanced by root exudates compared to deionized water, and oxalic acid contributed to 67% and 75% of the total extracted Fe and P, respectively. The coupling processes of Fe plaque enrichment of P and oxalic acid complexation of Fe(III) led to significantly enhanced P acquisition in the rhizosphere of V. natans.
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Affiliation(s)
- Xigang Xing
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China; State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Shiming Ding
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Ling Liu
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China.
| | - Musong Chen
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Wenming Yan
- College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China
| | - Liping Zhao
- Research Center on Flood and Drought Disaster Reduction of the Ministry of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
| | - Chaosheng Zhang
- International Network for Environment and Health, School of Geography and Archaeology, National University of Ireland, Galway, Ireland
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14
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Zhu J, Li M, Whelan M. Phosphorus activators contribute to legacy phosphorus availability in agricultural soils: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 612:522-537. [PMID: 28865270 DOI: 10.1016/j.scitotenv.2017.08.095] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 06/07/2023]
Abstract
Phosphorus (P) is one of the most limiting macronutrients for crop productivity and P deficiency is a common phenomenon in agricultural soils worldwide. Despite long-term application of phosphate fertilizers to increase crop yields, P availability is often low, due to the high affinity of phosphate for the soil solid phase. It has been suggested that the accumulated (surplus) P in agricultural soils is sufficient to sustain crop yields worldwide for about 100years. In this paper, we try to clear up the potential for making use of legacy P in soils for crop growth potentially alleviating the global P resource shortage. Specifically, we try to clear up the potential of soil "P activators" for releasing fixed P. P activators accelerate and strengthen process which transform P into bio-available forms via a range of chemical reactions and biological interactions. They include phosphate solubilizing microorganisms, phosphatase enzymes and enzyme activators, low molecular weight organic acids, humic acids, lignin, crop residues, biochar and zeolites. Although reported performance is variable, there is growing evidence that P activators can promote the release of phosphate from soil and, hence, have potential for mitigating the impending global P crisis. Further basic and applied research is required to better understand the mechanisms of interaction of P activators with natural soils and to maximize activator efficacy.
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Affiliation(s)
- Jing Zhu
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China
| | - Min Li
- College of Environmental Science and Engineering, Beijing Forestry University, Beijing, China.
| | - Mick Whelan
- School of Geography, Geology and the Environment, University of Leicester, Leicester, UK
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15
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Favorito JE, Eick MJ, Grossl PR. Adsorption of Selenite and Selenate on Ferrihydrite in the Presence and Absence of Dissolved Organic Carbon. JOURNAL OF ENVIRONMENTAL QUALITY 2018; 47:147-155. [PMID: 29415109 DOI: 10.2134/jeq2017.09.0352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study examines selenite [Se(IV)] and selenate [Se(VI)] adsorption on two-line ferrihydrite in the presence and absence of two low-molecular-weight dissolved organic carbon (DOC) species, citric and salicylic acid. Ferrihydrite surface potential measurements were also examined to identify shifts in isoelectric points, which suggest possible adsorption mechanisms. Sorption was completed in batch reactor systems at environmentally relevant pH. Our results indicate citric acid suppressed both Se(IV) and Se(VI) sorption on ferrihydrite, which may be caused by competition. This was especially evident at pH 5 to 7 for Se(IV) and pH 5 to 6 for Se(VI). Little sorption suppression was observed for both Se species in the presence of salicylic acid. In the presence of Se(IV) and Se(VI), citric acid adsorption was reduced (pH 5-8). Salicylic acid sorption was almost completely suppressed in the presence of Se(IV) throughout the entire pH range examined, with minimal sorption occurring at pH 5. In the presence of Se(VI), the largest reduction in salicylic acid sorption occurred at pH 5 to 6. Small shifts in the surface potential of ferrihydrite at higher pH suggest that Se(VI) and salicylic acid form weak, outer-sphere complexes. However, at pH 5 and 6, there is a shift in the surface potential measurements to more negative values, indicating possible formation of stronger, inner-sphere complexes. Larger surface potential shifts for Se(IV) and citric acid suggest the formation of strong, inner-sphere complexes. This work demonstrates the ability of low-molecular-weight DOC species (particularly for citric acid) to increase Se(IV) and Se(VI) solubility through sorption suppression.
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16
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Taghipour M, Jalali M. Influence of organic acids on kinetic release of chromium in soil contaminated with leather factory waste in the presence of some adsorbents. CHEMOSPHERE 2016; 155:395-404. [PMID: 27139119 DOI: 10.1016/j.chemosphere.2016.04.063] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 04/10/2016] [Accepted: 04/18/2016] [Indexed: 06/05/2023]
Abstract
In this study, batch experiments were conducted to investigate the effects of nanoparticles (NPs) (MgO, ZnO, TiO2) and clay minerals (bentonite, zeolite) on the release of chromium (Cr) from leather factory waste (LFW) and LFW treated soil using organic acids. Chromium release from all treatments was studied in the presence of citric acid, oxalic acid and CaCl2 solutions. The results showed that, in all treatments, organic acids released more Cr than inorganic salt (CaCl2). The release of Cr by citric acid was higher than that by oxalic acid. In LFW treated soil and LFW, the release of Cr from the all treatments with NPs was less than that from the clay mineral treatments. On the other hand, in the presence of organic acids, Cr release by NPs and clay minerals decreased. Two kinetic models including pseudo-first- and pseudo-second-order model were tested to describe the time dependent Cr release data. Among the kinetic models used, the pseudo-second-order model generally gave the best fits to experimental data. Before and after release experiments, Cr in LFW, treated LFW, control soil and LFW treated soils were fractionated. In all treatments, the greatest amounts of Cr were found in the residual fraction (RES). The organic acids were effective in reducing the exchangeable (EXC), bound to organic matter (OM) and bound to carbonate (CAR) fractions of Cr in all treatments, whereas, after release of Cr from treated soils, Cr remained mainly in the RES fraction. The application of NPs and clay minerals in soil led to a significant transformation of Cr from mobile fractions to the RES fraction. Therefore, organic ligands played a dominant role in mobility and bioavailability of Cr and the removal of Cr by adsorbents.
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Affiliation(s)
- Marzieh Taghipour
- Department of Soil Science, College of Agriculture, Bu-Ali Sina University, Hamadan, Iran.
| | - Mohsen Jalali
- Department of Soil Science, College of Agriculture, Bu-Ali Sina University, Hamadan, Iran
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17
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Phosphorus Release from Rock Phosphate as Influenced by Organic Acid Loaded Nanoclay Polymer Composites in an Alfisol. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s40011-016-0739-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Taghipour M, Jalali M. Effect of nanoparticles on kinetics release and fractionation of phosphorus. JOURNAL OF HAZARDOUS MATERIALS 2014; 283:359-370. [PMID: 25306535 DOI: 10.1016/j.jhazmat.2014.09.045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 09/14/2014] [Accepted: 09/15/2014] [Indexed: 06/04/2023]
Abstract
In this study, we examined the effect of nanoparticles (Al2O3 and TiO2) on kinetics release, fractionation and speciation of phosphorus (P) in some calcareous soils of western Iran. The maximum (average of five soils) (40.3 mg kg(-1)) and the minimum (10.5 mg kg(-1)) P were released by control soils and soils plus 3% TiO2, respectively. Pseudo second-order model described well P release. In order to predict and model the effects of NPs on P release, surface complexation model in PHREEQC program was used. The model could simulate the P release very well in all soils. After P release, the percentage of organic matter and sulphide-P fraction increased markedly following NPs addition, while carbonated-P fraction remained the most dominant fraction in all soils. In the initial stage of P release the solution samples in all soils and treatments were saturated with respect to strengite, and undersaturated with respect to other phosphate minerals. At the end of P release, all solutions were saturated with respect to hydroxyapatite and strengite and undersaturated with respect to other phosphate minerals. These results reflected that the NPs caused immobilization of P in soils and reduced the bioavailable P, thus, reducing their environment risk.
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Affiliation(s)
- Marzieh Taghipour
- Department of Soil Science, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran.
| | - Mohsen Jalali
- Department of Soil Science, College of Agriculture, Bu-Ali Sina University, Hamedan, Iran
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Yao ZF, Liang CY, Zhang Q, Chen ZJ, Xiao BX, Tian J, Liao H. SPX1 is an important component in the phosphorus signalling network of common bean regulating root growth and phosphorus homeostasis. JOURNAL OF EXPERIMENTAL BOTANY 2014; 65:3299-310. [PMID: 24790114 PMCID: PMC4071846 DOI: 10.1093/jxb/eru183] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Proteins containing the SPX domain are believed to play vital roles in the phosphorus (P) signalling network in plants. However, the functions of SPX proteins in legumes remain largely unknown. In this study, three SPX members, PvSPX1-PvSPX3 were cloned from common bean (Phaseolus vulgaris L.). It was found that the transcripts of all three PvSPX members were significantly enhanced in both bean leaves and roots by phosphate (Pi) starvation. Among them, the expression of nuclear localized PvSPX1 showed more sensitive and rapid responses to Pi starvation. Consistently, only overexpression of PvSPX1 resulted in increased root P concentration and modified morphology of transgenic bean hairy roots, such as inhibited root growth and an enlarged root hair zone. It was further demonstrated that PvSPX1 transcripts were up-regulated by overexpressing PvPHR1, and overexpressing PvSPX1 led to increased transcripts of 10 Pi starvation-responsive genes in transgenic bean hairy roots. Taken together, it is suggested that PvSPX1 is a positive regulator in the P signalling network of common bean, and is downstream of PvPHR1.
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Affiliation(s)
- Zhu-Fang Yao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, PR China
| | - Cui-Yue Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, PR China
| | - Qing Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, PR China
| | - Zhi-Jian Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, PR China
| | - Bi-Xian Xiao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, PR China
| | - Jiang Tian
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, PR China
| | - Hong Liao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Root Biology Center, South China Agricultural University, Guangzhou 510642, PR China
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