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Wang S, Na X, Pu M, Song Y, Li J, Li K, Cheng Z, He X, Zhang C, Liang C, Wang X, Bi Y. The monokaryotic filamentous fungus Ustilago sp. HFJ311 promotes plant growth and reduces Cd accumulation by enhancing Fe transportation and auxin biosynthesis. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135423. [PMID: 39106721 DOI: 10.1016/j.jhazmat.2024.135423] [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: 06/04/2024] [Revised: 07/29/2024] [Accepted: 08/02/2024] [Indexed: 08/09/2024]
Abstract
Infection with smut fungus like Ustilago maydis decreases crop yield via inducing gall formation. However, the in vitro impact of Ustilago spp. on plant growth and stress tolerance remains elusive. This study investigated the plant growth promotion and cadmium stress mitigation mechanisms of a filamentous fungus discovered on a cultural medium containing 25 μM CdCl2. ITS sequence alignment revealed 98.7 % similarity with Ustilago bromivora, naming the strain Ustilago sp. HFJ311 (HFJ311). Co-cultivation with HFJ311 significantly enhanced the growth of various plants, including Arabidopsis, tobacco, cabbage, carrot, rice, and maize, and improved Arabidopsis tolerance to abiotic stresses like salt and metal ions. HFJ311 increased chlorophyll and Fe contents in Arabidopsis shoots and enhanced root-to-shoot Fe translocation while decreasing root Fe concentration by approximately 70 %. Concurrently, HFJ311 reduced Cd accumulation in Arabidopsis by about 60 %, indicating its potential for bioremediation in Cd-contaminated soils. Additionally, HFJ311 stimulated IAA concentration by upregulating auxin biosynthesis genes. Overexpression of the Fe transporter IRT1 negated HFJ311's growth-promotion effects under Cd stress. These results suggest that HFJ311 stimulates plant growth and inhibits Cd uptake by enhancing Fe translocation and auxin biosynthesis while disrupting Fe absorption. Our findings offer a promising bioremediation strategy for sustainable agriculture and food security.
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Affiliation(s)
- Shengwang Wang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Xiaofan Na
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
| | - Meiyun Pu
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Yanfang Song
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Junjie Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Kaile Li
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Zhenyu Cheng
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Xiaoqi He
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Chuanji Zhang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Cuifang Liang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Xiaomin Wang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Yurong Bi
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China.
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Song H, Chen SF, Si G, Bhatt K, Chen SH, Chen WJ. Removal of environmental pollutants using biochar: current status and emerging opportunities. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2024; 46:384. [PMID: 39167116 DOI: 10.1007/s10653-024-02142-9] [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: 06/09/2024] [Accepted: 07/22/2024] [Indexed: 08/23/2024]
Abstract
In recent times, biochar has emerged as a novel approach for environmental remediation due to its exceptional adsorption capacity, attributed to its porous structure formed by the pyrolysis of biomass at elevated temperatures in oxygen-restricted conditions. This characteristic has driven its widespread use in environmental remediation to remove pollutants. When biochar is introduced into ecosystems, it usually changes the makeup of microbial communities by offering a favorable habitat. Its porous structure creates a protective environment that shields them from external pressures. Consequently, microorganisms adhering to biochar surfaces exhibit increased resilience to environmental conditions, thereby enhancing their capacity to degrade pollutants. During this process, pollutants are broken down into smaller molecules through the collaborative efforts of biochar surface groups and microorganisms. Biochar is also often used in conjunction with composting techniques to enhance compost quality by improving aeration and serving as a carrier for slow-release fertilizers. The utilization of biochar to support sustainable agricultural practices and combat environmental contamination is a prominent area of current research. This study aims to examine the beneficial impacts of biochar application on the absorption and breakdown of contaminants in environmental and agricultural settings, offering insights into its optimization for enhanced efficacy.
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Affiliation(s)
- Haoran Song
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Shao-Fang Chen
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Guiling Si
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Kalpana Bhatt
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Shao-Hua Chen
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China
| | - Wen-Juan Chen
- Integrative Microbiology Research Centre, College of Plant Protection, South China Agricultural University, Guangzhou, 510642, China.
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Niekerk LA, Gokul A, Basson G, Badiwe M, Nkomo M, Klein A, Keyster M. Heavy metal stress and mitogen activated kinase transcription factors in plants: Exploring heavy metal-ROS influences on plant signalling pathways. PLANT, CELL & ENVIRONMENT 2024; 47:2793-2810. [PMID: 38650576 DOI: 10.1111/pce.14926] [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: 11/10/2023] [Revised: 04/09/2024] [Accepted: 04/12/2024] [Indexed: 04/25/2024]
Abstract
Due to their stationary nature, plants are exposed to a diverse range of biotic and abiotic stresses, of which heavy metal (HM) stress poses one of the most detrimental abiotic stresses, targeting diverse plant processes. HMs instigate the overproduction of reactive oxygen species (ROS), and to mitigate the adverse effects of ROS, plants induce multiple defence mechanisms. Besides the negative implications of overproduction of ROS, these molecules play a multitude of signalling roles in plants, acting as a central player in the complex signalling network of cells. One of the ROS-associated signalling mechanisms is the mitogen-activated protein kinase (MAPK) cascade, a signalling pathway which transduces extracellular stimuli into intracellular responses. Plant MAPKs have been implicated in signalling involved in stress response, phytohormone regulation, and cell cycle cues. However, the influence of various HMs on MAPK activation has not been well documented. In this review, we address and summarise several aspects related to various HM-induced ROS signalling. Additionally, we touch on how these signals activate the MAPK cascade and the downstream transcription factors that influence plant responses to HMs. Moreover, we propose a workflow that could characterise genes associated with MAPKs and their roles during plant HM stress responses.
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Affiliation(s)
- Lee-Ann Niekerk
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
| | - Arun Gokul
- Department of Plant Sciences, Qwaqwa Campus, University of the Free State, Phuthaditjhaba, South Africa
| | - Gerhard Basson
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
| | - Mihlali Badiwe
- Plant Pathology Department, AgriScience Faculty, Stellenbosch University, Stellenbosch, South Africa
| | - Mbukeni Nkomo
- Plant Biotechnology Laboratory, Department of Agriculture, University of Zululand, Main Road, KwaDlangezwa, South Africa
| | - Ashwil Klein
- Plant Omics Laboratory, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
| | - Marshall Keyster
- Environmental Biotechnology Laboratory, Department of Biotechnology, University of the Western Cape, Bellville, South Africa
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Hussan MU, Hussain S, Hafeez MB, Ahmed S, Hassan MU, Jabeen S, Yan M, Wang Q. Comparative role of calcium oxide nanoparticles and calcium bulk fertilizer to alleviate cadmium toxicity by modulating oxidative stress, photosynthetic performance and antioxidant-defense genes expression in alfalfa. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 215:109002. [PMID: 39106767 DOI: 10.1016/j.plaphy.2024.109002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 07/05/2024] [Accepted: 07/31/2024] [Indexed: 08/09/2024]
Abstract
Cadmium (Cd) toxicity poses a significant threat to soil health and sustainable food production. Its bioaccumulation in plant tissues induces phytotoxicity by affecting physiological and biochemical attributes, leading to a reduction in plant biomass and production. Recently, nanotechnology has emerged as a promising approach for addressing heavy metal toxicity in an eco-friendly manner to enhance crop production. However, the comparative role of foliar applied calcium oxide nanoparticles (CaO-NPs) and bulk calcium fertilizer under Cd stress in alfalfa remains unexplored. Herein, we studied the ameliorative role of CaO-NPs and bulk calcium (50 and 100 mg L-1) to alleviate Cd stress (30 mg kg-1) in alfalfa seedlings. Plants exposed to Cd exhibited significant decreases in morpho-physiological traits, gas exchange attributes, and pigment contents as well as increase in Cd bioaccumulation in plant tissues. Notably, exogenous application of CaO-NPs ameliorates the toxic impact of Cd by enhancing plant biomass (45%), fluorescence efficiency and gaseous exchange attributes. The maximum dose of CaO-NPs induced Cd-tolerance response accompanied by a significant increase in antioxidative enzyme activities, such as superoxide dismutase (SOD; 29%), peroxidase (POD; 41%), catalase (CAT; 36%) and ascorbate peroxidase (APX; 49%), which play positive roles in ROS scavenging. TEM examination further revealed the protective role of these NPs in averting Cd-induced damage to leaf ultrastructure and mesophyll cells. Furthermore, CaO-NPs had a substantial influence on both Cd and Ca2+ accumulation in plant tissues, while qRT‒PCR analysis demonstrated higher expression of antioxidant defense genes viz. Cu/ZnSOD (0.38 fold change (FC)), MtPOD (0.51 FC), MtCAT (0.61 FC) and MtAPX (0.79 FC) under CaO-NPs application, over Cd control. Overall, our findings suggested that exogenous CaO-NPs could be effective in alleviating the adverse effects of Cd on alfalfa seedlings to ensure food safety and support sustainable agriculture.
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Affiliation(s)
- Maqsood Ul Hussan
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, China
| | - Sadam Hussain
- College of Horticulture, Northwest A&F University, Yangling, 712100, China
| | | | - Siraj Ahmed
- Agronomic Research Station, Karor, Layyah, 31200, Punjab, Pakistan
| | - Mahmood Ul Hassan
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, China
| | - Shaista Jabeen
- College of Life Sciences, Northwest A&F University, Yangling, 712100, China
| | - Mingke Yan
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, China
| | - Quanzhen Wang
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, China.
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Kapoor RT, Zdarta J. Fabrication of engineered biochar for remediation of toxic contaminants in soil matrices and soil valorization. CHEMOSPHERE 2024; 358:142101. [PMID: 38653395 DOI: 10.1016/j.chemosphere.2024.142101] [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: 12/22/2023] [Revised: 03/26/2024] [Accepted: 04/20/2024] [Indexed: 04/25/2024]
Abstract
Biochar has emerged as an efficacious green material for remediation of a wide spectrum of environmental pollutants. Biochar has excellent characteristics and can be used to reduce the bioavailability and leachability of emerging pollutants in soil through adsorption and other physico-chemical reactions. This paper systematically reviewed previous researches on application of biochar/engineered biochar for removal of soil contaminants, and underlying adsorption mechanism. Engineered biochar are derivatives of pristine biochar that are modified by various physico-chemical and biological procedures to improve their adsorption capacities for contaminants. This review will promote the possibility to expand the application of biochar for restoration of degraded lands in the industrial area or saline soil, and further increase the useable area. This review shows that application of biochar is a win-win strategy for recycling and utilization of waste biomass and environmental remediation. Application of biochar for remediation of contaminated soils may provide a new solution to the problem of soil pollution. However, these studies were performed mainly in a laboratory or a small scale, hence, further investigations are required to fill the research gaps and to check real-time applicability of engineered biochar on the industrial contaminated sites for its large-scale application.
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Affiliation(s)
- Riti Thapar Kapoor
- Centre for Plant and Environmental Biotechnology, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida, 201 313, Uttar Pradesh, India.
| | - Jakub Zdarta
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965, Poznan, Poland.
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Nan Y, Zhu N, Sun S, Lei T, Guo X, Leng F, Yang M, Chen J, Wang Y. Degradation of petroleum hydrocarbon contaminants by Rhodococcus erythropolis KB1 synergistic with alfalfa (Medicago sativa L.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:35332-35352. [PMID: 38727971 DOI: 10.1007/s11356-024-33227-8] [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: 12/20/2023] [Accepted: 04/02/2024] [Indexed: 05/30/2024]
Abstract
Petroleum hydrocarbons are a stubborn pollutant that is difficult to degrade globally, and plant-microbial degradation is the main way to solve this type of pollutant. In this study, the physiological and ecological responses of alfalfa to petroleum hydrocarbons in different concentrations of petroleum hydrocarbon-contaminated soil with KB1 (Rhodococcus erythropolis) were analyzed and determined by laboratory potting techniques. The growth of alfalfa (CK) and alfalfa with KB1 (JZ) in different concentrations of petroleum hydrocarbons contaminated soil was compared and analyzed. The results of the CK group showed that petroleum hydrocarbons could significantly affect the activity of alfalfa antioxidant enzyme system, inhibit the development of alfalfa roots and the normal growth of plants, especially in the high-concentration group. KB1 strain had the ability to produce IAA, form biofilm, fix nitrogen, produce betaine and ACC deaminase, and the addition of KB1 could improve the growth traits of alfalfa in the soil contaminated with different concentrations of petroleum hydrocarbons, the content of soluble sugars in roots, and the stress resistance and antioxidant enzyme activities of alfalfa. In addition, the degradation kinetics of the strain showed that the degradation rate of petroleum could reach 75.2% after soaking with KB1. Furthermore, KB1 can efficiently degrade petroleum hydrocarbons in advance and significantly alleviate the damage of high concentration of petroleum hydrocarbons to plant roots. The results showed that KB1 strains and alfalfa plants could effectively enhance the degradation of petroleum hydrocarbons, which provided new ideas for improving bioremediation strategies.
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Affiliation(s)
- Yan Nan
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
| | - Ning Zhu
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Shangchen Sun
- Lanzhou Resources & Environment Voc-Tech University, Lanzhou, 730050, China
| | - Tianzhu Lei
- Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730050, China
| | - Xiaopeng Guo
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
| | - Feifan Leng
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
| | - Mingjun Yang
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China
| | - Jixiang Chen
- School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Yonggang Wang
- School of Life Science and Engineering, Lanzhou University of Technology, Langongping Road 287, Qilihe District, Lanzhou, 730050, Gansu Province, China.
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Wang Y, Peng L, Deng X, Ao H, Song H, Kuang X, Chen A. Impact of meteorological factors on Cd availability and average concentration prediction in rice growth cycle. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 348:123858. [PMID: 38554834 DOI: 10.1016/j.envpol.2024.123858] [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: 10/24/2023] [Revised: 03/18/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
During the rice growth cycle, the average available cadmium concentration (CA-Cd) in the soil determines the Cd content in rice plant. Given defined soil properties and rice varieties, the meteorological factors play a crucial role in soil's available cadmium concentration (CCd) during the rice growth cycle. Thus, it is significant to investigate the influence of meteorological factors in CCd during the rice growth cycle and develop a predictive model for CA-Cd. The rice was cultivated under seven different sowing dates in Cd and As-contaminated soil in Hunan Province. Studied the impact of meteorological factors on paddy soil. The results showed that accumulated temperature (AT) and total precipitation (TP) were key factors affecting the soil CCd. The correlation coefficients between AT and TP with soil CA-Cd were 0.98 and -0.94 (p < 0.01), respectively. However, there was no significant correlation with CAs. AT mainly influenced the CCd during the grouting and maturity stages. A straightforward empirical prediction model was developed, capable of accurately forecasting CA-Cd during the rice growth cycle by considering meteorological factors and the initial soil CCd. This study supported a novel foundation for the precise prediction of Cd content in rice.
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Affiliation(s)
- Yuanlong Wang
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Hunan Engineering and Technology Research Center for Irrigation Water Purification, Changsha, 410128, PR China
| | - Liang Peng
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Hunan Engineering and Technology Research Center for Irrigation Water Purification, Changsha, 410128, PR China.
| | - Xiao Deng
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Hunan Engineering and Technology Research Center for Irrigation Water Purification, Changsha, 410128, PR China
| | - Hejun Ao
- College of Agronomy, Hunan Agricultural University, Changsha, 410128, PR China
| | - Huijuan Song
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Hunan Engineering and Technology Research Center for Irrigation Water Purification, Changsha, 410128, PR China
| | - Xiaolin Kuang
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Hunan Engineering and Technology Research Center for Irrigation Water Purification, Changsha, 410128, PR China
| | - Anwei Chen
- College of Environment & Ecology, Hunan Agricultural University, Changsha, 410128, PR China; Hunan Engineering and Technology Research Center for Irrigation Water Purification, Changsha, 410128, PR China
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Sulaiman MA, Kumari A. Unveiling the Rising Threat of Cadmium Pollution and Alarming Health Risks Associated with the Consumption of 15 Commercially Important Fish Species in the Middle Stretch of River Ganga, at Patna, India. Biol Trace Elem Res 2024:10.1007/s12011-024-04164-x. [PMID: 38607526 DOI: 10.1007/s12011-024-04164-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/27/2024] [Indexed: 04/13/2024]
Abstract
Among environmental contaminants, the rising level of cadmium in freshwater ecosystems is one of the most significant global concerns. The study addresses the current pollution status of cadmium in the middle stretch of River Ganga and explores the potential hazard associated with the consumption of 15 commercially important fish species by the inhabitants. Together 72 water and sediment samples were analyzed from the four representative sampling sites of River Ganga after the surveillance of major anthropogenic stressors. The concentration of cadmium ranges from 0.003 to 0.011 mg/l and 0.2 to 3.48 mg/kg in water and sediment respectively in 2022. The average concentration of cadmium was recorded to be the highest in Channa punctatus (1.35 mg/kg), followed by Rita rita = Johnius coitor (1.15 mg/kg), and the lowest in Labeo bata (0.2 mg/kg). The finding highlights greater exposure duration and feeding preferences of fish species have played a significant role in the bioaccumulation of the metal in the riverine system. Notably, the domestic effluents, agricultural runoffs, and pollutants brought along by the tributaries of River Ganga are identified as the main anthropogenic stressors for the moderate to considerably polluted status of the River Ganga. The target hazard quotient (THQ) and target carcinogenic risk (TCR) have revealed a higher susceptibility to cadmium contamination in children followed by females, and males. In addition, hierarchical cluster analysis (HCA) has noted intake of Rita rita, Channa punctata, Puntius sophore, and Johnius coitor could be more detrimental to children's health than adults.
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Affiliation(s)
| | - Anupma Kumari
- Department of Zoology, Patna University, Patna, 800005, India.
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Wu D, Zhang Y, Gu W, Feng Z, Xiu L, Zhang W, Chen W. Long term co-application of biochar and fertilizer could increase soybean yield under continuous cropping: insights from photosynthetic physiology. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:3113-3122. [PMID: 38072657 DOI: 10.1002/jsfa.13202] [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: 10/12/2023] [Revised: 11/28/2023] [Accepted: 12/04/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Photosynthesis is the key to crop yield. The effect of biochar on photosynthetic physiology and soybean yield under continuous cropping is unclear. We conducted a long-term field experiment to investigate the effects of co-application of biochar and fertilizer (BCAF) on these parameters. Five treatments were established: F2 (fertilizer), B1F1 (3 t hm-2 biochar plus fertilizer), B1F2 (3 t hm-2 biochar plus reduced fertilizer), B2F1 (6 t hm-2 biochar plus fertilizer), and B2F2 (6 t hm-2 biochar plus reduced fertilizer). RESULTS BCAF increased chlorophyll and leaf area, enhancing soybean photosynthesis. The net photosynthetic rate (Pn ), transpiration rate (Tr ), stomatal conductance (Gs ), water use efficiency (WUE) and intercellular carbon dioxide (CO2 ) concentration (Ci ) were enhanced by BCAF. In addition, BCAF improved soybean photosystem II (PSII) photosynthetic performance, driving force, potential photochemical efficiency (Fv /F0 ), and quantum yield of electron transfer (φE0 ). Furthermore, BCAF enhanced the accumulation of photosynthetic products, such as soluble proteins, soluble sugars and sucrose content, resulting in higher leaf dry weight. Consequently, BCAF increased the soybean yield, with the highest increase of 41.54% in B2F1. The correlation analysis revealed positive relationships between soybean yield and chlorophyll, leaf area, maximal quantum yield of PSII (Fv /Fm ), electron transport flux per cross-section at t = 0 (ET0 /CS0 ), trapped energy flux per cross-section at t = 0 (TR0 /CS0 ), composite blade driving force (DFTotal ), and leaf dry weight. CONCLUSIONS We demonstrated that long-term BCAF enhances soybean photosynthesis under continuous planting, reduces fertilizer use and increases yield. This study reveals a novel way and theory to sustainably increase soybean productivity. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Di Wu
- Biochar Engineering & Technology Research Center of Liaoning Province, Agronomy College, Shenyang Agricultural University, Shenyang, China
| | - Yuxue Zhang
- Biochar Engineering & Technology Research Center of Liaoning Province, Agronomy College, Shenyang Agricultural University, Shenyang, China
| | - Wenqi Gu
- Biochar Engineering & Technology Research Center of Liaoning Province, Agronomy College, Shenyang Agricultural University, Shenyang, China
| | - Zhibo Feng
- Biochar Engineering & Technology Research Center of Liaoning Province, Agronomy College, Shenyang Agricultural University, Shenyang, China
| | - Liqun Xiu
- Biochar Engineering & Technology Research Center of Liaoning Province, Agronomy College, Shenyang Agricultural University, Shenyang, China
| | - Weiming Zhang
- Biochar Engineering & Technology Research Center of Liaoning Province, Agronomy College, Shenyang Agricultural University, Shenyang, China
| | - Wenfu Chen
- Biochar Engineering & Technology Research Center of Liaoning Province, Agronomy College, Shenyang Agricultural University, Shenyang, China
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Tang Y, Zuo F, Li C, Zhang Q, Gao W, Cheng J. Combined effects of biochar and biodegradable mulch film on chromium bioavailability and the agronomic characteristics of tobacco. Sci Rep 2024; 14:6867. [PMID: 38514728 PMCID: PMC10957920 DOI: 10.1038/s41598-024-56973-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 03/13/2024] [Indexed: 03/23/2024] Open
Abstract
Biochar (BC) and biodegradable mulch film (BMF) are both commonly used means of production in agriculture. In recent years, most studies have focused on the effects of BC or BMF on soil heavy metal pollution, while they have neglected the combined effects. In this study, a pot experiment was conducted to examine the impacts of BMF, BC, and combined BMF and BC (CMB) on the mobility of chromium (Cr) and the agronomic characteristics of flue-cured tobacco. Compared with the control, BMF, BC, and CMB significantly reduced the concentrations of diethylenetriamine pentaacetic acid (DTPA) extractable Cr in soils by 29.07-29.75%, 45.35-48.54%, and 34.21-37.92%, respectively. In comparison to the application of BMF and BC alone, co-application reduced the availability of Cr in soil via increasing the adsorption of soil Cr and soil enzyme activity, which resulted in the decrease of Cr content and bioconcentration factor and in plants. Moreover, the combined application increased the plant height, stem diameter, leaf area, total root area, root tip number, and root activity of tobacco, which leaded to increase in leaf and root biomass by 11.40-67.01% and 23.91-50.74%, respectively. Therefore, the application of CMB can reduce the heavy metal residues in tobacco leaves and improve tobacco yield and quality.
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Affiliation(s)
- Yuan Tang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guian New Area, 561113, Guizhou, China
| | - Fumin Zuo
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guian New Area, 561113, Guizhou, China
| | - Changhong Li
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guian New Area, 561113, Guizhou, China
| | - Qinghai Zhang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guian New Area, 561113, Guizhou, China
| | - Weichang Gao
- Guizhou Academy of Tobacco Science, Guiyang, 550081, Guizhou, China.
| | - Jianzhong Cheng
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guian New Area, 561113, Guizhou, China.
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, Guizhou, China.
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Maqbool Z, Shahbaz Farooq M, Rafiq A, Uzair M, Yousuf M, Ramzan Khan M, Huo S. Unlocking the potential of biochar in the remediation of soils contaminated with heavy metals for sustainable agriculture. FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP23257. [PMID: 38310926 DOI: 10.1071/fp23257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 12/20/2023] [Indexed: 02/06/2024]
Abstract
Agricultural soils contaminated with heavy metals (HMs) impose a threat to the environmental and to human health. Amendment with biochar could be an eco-friendly and cost-effective option to decrease HMs in contaminated soil. This paper reviews the application of biochar as a soil amendment to immobilise HMs in contaminated soil. We discuss the technologies of its preparation, their specific properties, and effect on the bioavailability of HMs. Biochar stabilises HMs in contaminated soil, enhance the overall quality of the contaminated soil, and significantly reduce HM uptake by plants, making it an option in soil remediation for HM contamination. Biochar enhances the physical (e.g. bulk density, soil structure, water holding capacity), chemical (e.g. cation exchange capacity, pH, nutrient availability, ion exchange, complexes), and biological properties (e.g. microbial abundance, enzymatic activities) of contaminated soil. Biochar also enhances soil fertility, improves plant growth, and reduces the plant availability of HMs. Various field studies have shown that biochar application reduces the bioavailability of HMs from contaminated soil while increasing crop yield. The review highlights the positive effects of biochar by reducing HM bioavailability in contaminated soils. Future work is recommended to ensure that biochars offer a safe and sustainable solution to remediate soils contaminated with HMs.
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Affiliation(s)
- Zubaira Maqbool
- School of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; and Department of Soil Science and Environmental Science, Arid Agriculture University, Rawalpindi, Pakistan
| | - Muhammad Shahbaz Farooq
- School of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; and Rice Research Program, Crop Sciences Institute (CSI), National Agricultural Research Centre (NARC), Park Road, Islamabad 44000, Pakistan
| | - Anum Rafiq
- Institute Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Muhammad Uzair
- National Institute of Genomics and Advanced Biotechnology (NIGAB), National Agriculture Research Center (NARC), Park Road, Islamabad, Pakistan
| | - Muhammad Yousuf
- Pakistan Agriculture Research Council (PARC), G5, Islamabad, Pakistan
| | - Muhammad Ramzan Khan
- National Institute of Genomics and Advanced Biotechnology (NIGAB), National Agriculture Research Center (NARC), Park Road, Islamabad, Pakistan
| | - Shuhao Huo
- School of Food Science and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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12
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Hu Y, Cao Y, Ma C, Yan W. Nano-biochar as a potential amendment for metal(loid) remediation: Implications for soil quality improvement and stress alleviation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119658. [PMID: 38056332 DOI: 10.1016/j.jenvman.2023.119658] [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: 08/25/2023] [Revised: 11/01/2023] [Accepted: 11/18/2023] [Indexed: 12/08/2023]
Abstract
Metal(loid) contamination of agricultural soils has become an alarming issue due to its detrimental impacts on soil health and global agricultural production. Therefore, environmentally sustainable and cost-effective solutions are urgently required for soil remediation. Biochar, particularly nano-biochar, exhibits superior and high-performance capabilities in the remediation of metal(loid)-contaminated soil, owing to its unique structure and large surface area. Current researches on nano-biochar mainly focus on safety design and property improvement, with limited information available regarding the impact of nano-biochar on soil ecosystems and crop defense mechanisms in metal(loid)-contaminated soils. In this review, we systematically summarized recent progress in the application of nano-biochar for remediation of metal(loid)-contaminated soil, with a focus on possible factors influencing metal(loid) uptake and translocation in soil-crop systems. Additionally, we conducted the potential/related mechanisms by which nano-biochar can mitigate the toxic impacts of metal(loid) on crop production and security. Furthermore, the application of nano-biochar in field trials and existing challenges were also outlined. Future studies should integrate agricultural sustainability and ecosystem health targets into biochar design/selection. This review highlighted the potential of nano-biochar as a promising soil amendment for enhancing the remediation of metal(loid)-contaminated agricultural soils, thereby promoting the synthesis and development of highly efficient nano-biochar towards achieving environmental sustainability.
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Affiliation(s)
- Yi Hu
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China; Key Laboratory of Urban Forest Ecology of Hunan Province, Changsha, 410004, Hunan, China
| | - Yini Cao
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China; Key Laboratory of Urban Forest Ecology of Hunan Province, Changsha, 410004, Hunan, China.
| | - Chuanxin Ma
- Key Laboratory for City Cluste Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou, 510006, China
| | - Wende Yan
- National Engineering Laboratory for Applied Technology of Forestry & Ecology in South China, Faculty of Life Science and Technology, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China; Key Laboratory of Urban Forest Ecology of Hunan Province, Changsha, 410004, Hunan, China.
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13
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Zulfiqar U, Haider FU, Maqsood MF, Mohy-Ud-Din W, Shabaan M, Ahmad M, Kaleem M, Ishfaq M, Aslam Z, Shahzad B. Recent Advances in Microbial-Assisted Remediation of Cadmium-Contaminated Soil. PLANTS (BASEL, SWITZERLAND) 2023; 12:3147. [PMID: 37687393 PMCID: PMC10490184 DOI: 10.3390/plants12173147] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 08/29/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023]
Abstract
Soil contamination with cadmium (Cd) is a severe concern for the developing world due to its non-biodegradability and significant potential to damage the ecosystem and associated services. Industries such as mining, manufacturing, building, etc., rapidly produce a substantial amount of Cd, posing environmental risks. Cd toxicity in crop plants decreases nutrient and water uptake and translocation, increases oxidative damage, interferes with plant metabolism and inhibits plant morphology and physiology. However, various conventional physicochemical approaches are available to remove Cd from the soil, including chemical reduction, immobilization, stabilization and electro-remediation. Nevertheless, these processes are costly and unfriendly to the environment because they require much energy, skilled labor and hazardous chemicals. In contrasting, contaminated soils can be restored by using bioremediation techniques, which use plants alone and in association with different beneficial microbes as cutting-edge approaches. This review covers the bioremediation of soils contaminated with Cd in various new ways. The bioremediation capability of bacteria and fungi alone and in combination with plants are studied and analyzed. Microbes, including bacteria, fungi and algae, are reported to have a high tolerance for metals, having a 98% bioremediation capability. The internal structure of microorganisms, their cell surface characteristics and the surrounding environmental circumstances are all discussed concerning how microbes detoxify metals. Moreover, issues affecting the effectiveness of bioremediation are explored, along with potential difficulties, solutions and prospects.
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Affiliation(s)
- Usman Zulfiqar
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
| | - Fasih Ullah Haider
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;
- University of Chinese Academy of Sciences, Beijing 100039, China
| | | | - Waqas Mohy-Ud-Din
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan;
- Department of Soil and Environmental Sciences, Ghazi University, D. G. Khan 32200, Pakistan
- Institute of Marine and Environmental Technology, University of Maryland Center for Environmental Science, Baltimore, MD 21202, USA
| | - Muhammad Shabaan
- Land Resources Research Institute (LRRI), National Agricultural Research Centre (NARC), Islamabad, Pakistan;
| | - Muhammad Ahmad
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan; (M.A.); (M.I.)
| | - Muhammad Kaleem
- Department of Botany, University of Agriculture, Faisalabad 38040, Pakistan;
| | - Muhammad Ishfaq
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan; (M.A.); (M.I.)
- Department of Agriculture, Extension, Azad Jammu & Kashmir, Pakistan
| | - Zoya Aslam
- Soil and Environmental Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Constituent College of Pakistan Institute of Engineering and Applied Sciences, Faisalabad, Pakistan
| | - Babar Shahzad
- Tasmanian Institute of Agriculture, University of Tasmania, Hobart, TAS 7001, Australia
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14
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Tadjouri H, Amiri O, Medjedded H, Nemmiche S, Benati FZ. Ecophysiological responses of Glycine max L. under single and combined cadmium and salinity stresses. ECOTOXICOLOGY (LONDON, ENGLAND) 2023; 32:802-810. [PMID: 37561277 DOI: 10.1007/s10646-023-02688-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 08/01/2023] [Indexed: 08/11/2023]
Abstract
Soil contamination by cadmium (Cd) and degradation by salinity are likely to become one of the most important problems hindering food production and human health. However, their combined effect on crops is still ambiguous. A hydroponic study was made to investigate the separate and combined exposure of 100 µM Cd and 150 µM NaCl on soybeans (Glycine max L.) growth, photosynthetic pigment, and antioxidant systems for 7 days. Both Cd and NaCl, applied separately decreased the seedlings growth, chlorophyll contents and caused oxidative stress. However, the toxic effects of salinity applied alone were more pronounced. Interestingly, combined exposure of Cd and NaCl induced higher decreases in all growth parameters and lipid peroxidation than single exposure suggesting synergistic effects. The results implicate that the phytotoxicity of both stressors can be associated with redox status imbalance. Our finding may provide insight into the physiological mechanisms of heavy metal exposure and salinity stress tolerance in soybeans and suggest that saline stress changes the effects of Cd toxicity on crops in Cd-salt-polluted soils.
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Affiliation(s)
- Houria Tadjouri
- Department of Biology, Faculty of Nature and Life Sciences, University of Mostaganem, 27000, Mostaganem, Algeria
| | - Ouafaa Amiri
- Department of Agronomy, Faculty of Nature and Life Sciences, University of Mostaganem, 27000, Mostaganem, Algeria
| | - Housna Medjedded
- Department of Biology, Faculty of Nature and Life Sciences, University of Mostaganem, 27000, Mostaganem, Algeria
| | - Saïd Nemmiche
- Department of Biology, Faculty of Nature and Life Sciences, University of Mostaganem, 27000, Mostaganem, Algeria.
| | - Fatima Zohra Benati
- Centre de Recherche Scientifique et Technique en Analyses Physico-chimiques (CRAPC), BP 384, RP 42004, Bou-Ismail, Tipaza, Algeria
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15
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Shi A, Hu Y, Zhang X, Zhou D, Xu J, Rensing C, Zhang L, Xing S, Ni W, Yang W. Biochar loaded with bacteria enhanced Cd/Zn phytoextraction by facilitating plant growth and shaping rhizospheric microbial community. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 327:121559. [PMID: 37023890 DOI: 10.1016/j.envpol.2023.121559] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 03/22/2023] [Accepted: 04/02/2023] [Indexed: 06/19/2023]
Abstract
Biochar and metal-tolerant bacteria have been widely used in the remediation of heavy metal contaminated soil. However, the synergistic effect of biochar-functional microbes on phytoextraction by hyperaccumulators remains unclear. In this study, the heavy metal-tolerant strain Burkholderia contaminans ZCC was selected and loaded on biochar to produce biochar-resistant bacterial material (BM), and the effects of BM on Cd/Zn phytoextraction by Sedum alfredii Hance and rhizospheric microbial community were explored. The results showed that, BM application significantly enhanced the Cd and Zn accumulation of S. alfredii by 230.13% and 381.27%, respectively. Meanwhile, BM alleviated metal toxicity of S. alfredii by reducing oxidative damage and increasing chlorophyll and antioxidant enzyme activity. High-throughput sequencing revealed that BM significantly improved soil bacterial and fungal diversity, and increased the abundance of genera with plant growth promoting and metal solubilizing functions such as Gemmatimonas, Dyella and Pseudarthrobacter. Co-occurrence network analysis showed that BM significantly increased the complexity of the rhizospheric bacterial and fungal network. Structural equation model analysis revealed that soil chemistry property, enzyme activity and microbial diversity contributed directly or indirectly to Cd and Zn extraction by S. alfredii. Overall, our results suggested that biochar- B. contaminans ZCC was able to enhance the growth and Cd/Zn accumulation by S. alfredii. This study enhanced our understanding on the hyperaccumulator-biochar-functional microbe interactions, and provided a feasible strategy for promoting the phytoextraction efficiency of heavy metal contaminated soils.
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Affiliation(s)
- An Shi
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Ying Hu
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Xiao Zhang
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Dan Zhou
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Junlong Xu
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Christopher Rensing
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Liming Zhang
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Shihe Xing
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China
| | - Wuzhong Ni
- College of Environment and Resources, Zhejiang University, Hangzhou, 310058, China
| | - Wenhao Yang
- Key Laboratory of Soil Ecosystem Health and Regulation of Fujian Provincial University, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, China.
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16
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Shaffique S, Hussain S, Kang SM, Imran M, Kwon EH, Khan MA, Lee IJ. Recent progress on the microbial mitigation of heavy metal stress in soybean: overview and implications. FRONTIERS IN PLANT SCIENCE 2023; 14:1188856. [PMID: 37377805 PMCID: PMC10291193 DOI: 10.3389/fpls.2023.1188856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 05/11/2023] [Indexed: 06/29/2023]
Abstract
Plants are adapted to defend themselves through programming, reprogramming, and stress tolerance against numerous environmental stresses, including heavy metal toxicity. Heavy metal stress is a kind of abiotic stress that continuously reduces various crops' productivity, including soybeans. Beneficial microbes play an essential role in improving plant productivity as well as mitigating abiotic stress. The simultaneous effect of abiotic stress from heavy metals on soybeans is rarely explored. Moreover, reducing metal contamination in soybean seeds through a sustainable approach is extremely needed. The present article describes the initiation of heavy metal tolerance mediated by plant inoculation with endophytes and plant growth-promoting rhizobacteria, the identification of plant transduction pathways via sensing annotation, and contemporary changes from molecular to genomics. The results suggest that the inoculation of beneficial microbes plays a significant role in rescuing soybeans under heavy metal stress. They create a dynamic, complex interaction with plants via a cascade called plant-microbial interaction. It enhances stress metal tolerance via the production of phytohormones, gene expression, and secondary metabolites. Overall, microbial inoculation is essential in mediating plant protection responses to heavy metal stress produced by a fluctuating climate.
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Affiliation(s)
- Shifa Shaffique
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Saddam Hussain
- Department of Agronomy, The University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Sang-Mo Kang
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Muhammad Imran
- National Institute of Agriculture Science, Rural Development Administration, Biosafety Division, Jeonju, Republic of Korea
| | - Eun-Hae Kwon
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Muhammad Aaqil Khan
- Department of Chemical and Life Sciences, Qurtuba University of Science and Information Technology, Peshawar, Pakistan
| | - In-Jung Lee
- Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea
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17
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Zhang Y, He T, Tian W, Xia Y, He Y, Su M, He G. The Expression of the StNRAMP2 Gene Determined the Accumulation of Cadmium in Different Tissues of Potato. Int J Mol Sci 2023; 24:ijms24119322. [PMID: 37298282 DOI: 10.3390/ijms24119322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/18/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
Cadmium (Cd) is a toxic metal that threatens human health when enriched in crops. NRAMPs are a family of natural macrophage proteins reported to play a key role in Cd transport in plants. In order to explore the gene regulation mechanism of potato under Cd stress and the role of NRAMPs family in it, this study analyzed the gene expression differences of two different Cd accumulation levels in potato after 7 days of 50 mg/kg Cd stress and screened out the key genes that may play a major role in the differential accumulation of Cd in different varieties. Additionally, StNRAMP2 was selected for verification. Further verification showed that the StNRAMP2 gene plays an important role in the accumulation of Cd in potato. Interestingly, silencing StNRAMP2 increased Cd accumulation in tubers but significantly decreased Cd accumulation in other sites, suggesting a critical role of StNRAMP2 in Cd uptake and transport in potatoes. To further confirm this conclusion, we performed heterologous expression experiments in which overexpression of StNRAMP2 gene in tomato resulted in a threefold increase in Cd content, which further confirmed the important role of StNRAMP2 in the process of Cd accumulation compared with wild-type plants. In addition, we found that the addition of Cd to the soil increased the activity of the plant antioxidant enzyme system, and silencing StNRAMP2 partially reversed this effect. This suggests that the StNRAMP2 gene plays an important role in plant stress tolerance, and future studies could further explore the role of this gene in other environmental stresses. In conclusion, the results of this study improve the understanding of the mechanism of Cd accumulation in potato and provide experimental basis for remediation of Cd pollution.
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Affiliation(s)
- Yule Zhang
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Tengbing He
- College of Agriculture, Guizhou University, Guiyang 550025, China
- Institute of New Rural Development, Guizhou University, Guiyang 550025, China
| | - Weijun Tian
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Yabei Xia
- Research and Development Center of Fine Chemical Industry, Guizhou University, Guiyang 550025, China
| | - Yeqing He
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Minmin Su
- College of Agriculture, Guizhou University, Guiyang 550025, China
| | - Guandi He
- College of Agriculture, Guizhou University, Guiyang 550025, China
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18
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Xu H, Huang Y, Xiong X, Zhu H, Lin J, Shi J, Tang C, Xu J. Changes in soil Cd contents and microbial communities following Cd-containing straw return. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 330:121753. [PMID: 37127235 DOI: 10.1016/j.envpol.2023.121753] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/22/2023] [Accepted: 04/28/2023] [Indexed: 05/03/2023]
Abstract
Contamination of soil with cadmium (Cd) threatens food safety and human health. In general, crop straws from contaminated soils could accumulate considerable amounts of Cd. The addition of Cd-containing rice straw can have negative effects on soil environment. In this study, straws varying in Cd concentration were added to soil at a rate of 5% (w/w) to investigate the effects of Cd-containing straw on soil Cd dynamics and soil microbial communities. Results showed that large amounts of Cd, especially bioavailable Cd, were released into soil during the decomposition of Cd-containing straws. The addition of straws with 10, 20 and 40 mg kg-1 Cd increased total Cd in soils from 0.31 mg kg-1 to 0.89, 1.39 and 2.09 mg kg-1, respectively, exceeding the screening value of total Cd < 0.4 mg kg-1 for paddy soils of pH 5.5-6.5 according to Chinese Soil Environmental Quality Standards. Moreover, the addition of Cd-containing straw decreased alpha-diversity of bacterial and fungal communities compared to the clean straw. Indeed, changes in soil factors including pH, Eh, dissolved organic C and Cd level jointly reconstructed soil microbial communities. The addition of Cd-containing straw increased the relative abundance of bacterial species Acidobacteria and Proteobacteria but decreased that of Firmicutes. Meanwhile, it increased the relative abundance of fungal species Basidiomycota and Fusarium which were considered Cd-tolerant. This study revealed the potential environmental risk and the variation of microbial communities caused by increasing soil Cd bioavailability after direct application of Cd-containing rice straw to the field.
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Affiliation(s)
- Haojie Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Yu Huang
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Xinquan Xiong
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Hang Zhu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Jiahui Lin
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Jiachun Shi
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China
| | - Caixian Tang
- Department of Animal, Plant & Soil Sciences / La Trobe Institute for Sustainable Agriculture and Food, La Trobe University, Bundoora, Vic, 3086, Australia
| | - Jianming Xu
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou, 310058, China.
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Jehan S, Khattak SA, Khan S, Ali L, Waqas M, Kamran A. Comparative efficacy of Parthenium hysterophorus (L.) derived biochar and iron doped zinc oxide nanoparticle on heavy metals (HMs) mobility and its uptake by Triticum aestivum (L.) in chromite mining contaminated soils. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 25:1890-1900. [PMID: 37114297 DOI: 10.1080/15226514.2023.2204968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
In this study we investigated the efficacy of a novel material parthenium weed (Parthenium hysterophorus L.) biochar (PBC), iron doped zinc oxide nanoparticles (nFe-ZnO), and biochar modified with nFe-ZnO (Fe-ZnO@BC) to adsorb heavy metals (HMs) and reduce their uptake by wheat (Triticum aestivum L.) in a highly chromite mining contaminated soil. The co-application of the applied soil conditioners exhibited a positive effect on the immobilization and restricted the HMs uptake below their threshold levels in shoot content of wheat. The maximum adsorption capacity was because of large surface area, cation exchange capacity, surface precipitation, and complexation of the soil conditioners. The scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS) showed porous smooth structure of parthenium weed derived biochar that helped in HMs adsorption, increase the efficiency of soil fertilizers and nutrients retention which help in the enhancement soil condition. Under different application rates the highest translocation factor (TFHMs) was obtained at 2 g nFe-ZnO rate followed the descending order: Mn > Cr > Cu > Ni > Pb. The overall TFHMs was found <1.0 indicating that low content of HMs accumulation in roots from soil slight transferred to shoot, thus satisfying the remediation requirements.
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Affiliation(s)
- Shah Jehan
- National Centre of Excellence in Geology, University of Peshawar, Peshawar, Pakistan
- Department of Earth Sciences, IN University-Purdue University Indianapolis (IUPUI), Indianapolis, IN, USA
| | - Seema A Khattak
- National Centre of Excellence in Geology, University of Peshawar, Peshawar, Pakistan
| | - Sardar Khan
- Department of Environmental Sciences, University of Peshawar, Peshawar, Pakistan
| | - Liaqat Ali
- National Centre of Excellence in Geology, University of Peshawar, Peshawar, Pakistan
| | - Muhammad Waqas
- Department of Environmental Sciences, Kohat University of Science and Technology, Kohat, Pakistan
| | - Asad Kamran
- National Centre of Excellence in Geology, University of Peshawar, Peshawar, Pakistan
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20
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Sachdeva S, Kumar R, Sahoo PK, Nadda AK. Recent advances in biochar amendments for immobilization of heavy metals in an agricultural ecosystem: A systematic review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 319:120937. [PMID: 36608723 DOI: 10.1016/j.envpol.2022.120937] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
Over the last several decades, extensive and inefficient use of contemporary technologies has resulted in substantial environmental pollution, predominantly caused by potentially hazardous elements (PTEs), like heavy metals that severely harm living species. To combat the presence of heavy metals (HMs) in the agrarian system, biochar becomes an attractive approach for stabilizing and limiting availability of HMs in soils due to its high surface area, porosity, pH, aromatic structure as well as several functional groups, which mostly rely on the feedstock and pyrolysis temperature. Additionally, agricultural waste-derived biochar is an effective management option to ensure carbon neutrality and circular economy while also addressing social and environmental concerns. Given these diverse parameters, the present systematic evaluation seeks to (i) ascertain the effectiveness of heavy metal immobilization by agro waste-derived biochar; (ii) examine the presence of biochar on soil physico-chemical, and thermal properties, along with microbial diversity; (iii) explore the underlying mechanisms responsible for the reduction in heavy metal concentration; and (iv) possibility of biochar implications to advance circular economy approach. The collection of more than 200 papers catalogues the immobilization efficiency of biochar in agricultural soil and its impacts on soil from multi-angle perspectives. The data gathered suggests that pristine biochar effectively reduced cationic heavy metals (Pb, Cd, Cu, Ni) and Cr mobilization and uptake by plants, whereas modified biochar effectively reduced As in soil and plant systems. However, the exact mechanism underlying is a complex biochar-soil interaction. In addition to successfully immobilizing heavy metals in the soil, the application of biochar improved soil fertility and increased agricultural productivity. However, the lack of knowledge on unfavorable impacts on the agricultural systems, along with discrepancies between the use of biochar and experimental conditions, impeded a thorough understanding on a deeper level.
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Affiliation(s)
- Saloni Sachdeva
- Department of Biotechnology, Jaypee Institute of Information Technology, A-10 Sector 62, Noida, 201309, Uttar Pradesh, India
| | - Rakesh Kumar
- School of Ecology and Environment Studies, Nalanda University, Rajgir, 803116, Bihar, India
| | - Prafulla Kumar Sahoo
- Department of Environmental Science and Technology, Central University of Punjab, V.P.O. Ghudda, Bathinda, 151401, Punjab, India; Instituto Tecnológico Vale (ITV), Rua Boaventura da Silva, 955, Belém, 66055-090, PA, Brazil.
| | - Ashok Kumar Nadda
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, Himachal Pradesh, 173 234, India
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Haider FU, Wang X, Zulfiqar U, Farooq M, Hussain S, Mehmood T, Naveed M, Li Y, Liqun C, Saeed Q, Ahmad I, Mustafa A. Biochar application for remediation of organic toxic pollutants in contaminated soils; An update. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 248:114322. [PMID: 36455351 DOI: 10.1016/j.ecoenv.2022.114322] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 10/15/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
Bioremediation of organic contaminants has become a major environmental concern in the last few years, due to its bio-resistance and potential to accumulate in the environment. The use of diverse technologies, involving chemical and physical principles, and passive uptake utilizing sorption using ecofriendly substrates have drawn a lot of interest. Biochar has got attention mainly due to its simplicity of manufacturing, treatment, and disposal, as it is a less expensive and more efficient material, and has a lot of potential for the remediation of organic contaminants. This review highlighted the adverse impact of persistent organic pollutants on the environment and soil biota. The utilization of biochar to remediate soil and contaminated compounds i.e., pesticides, polycyclic aromatic hydrocarbons, antibiotics, and organic dyes has also been discussed. The soil application of biochar has a significant impact on the biodegradation, leaching, and sorption/desorption of organic contaminants. The sorption/desorption of organic contaminants is influenced by chemical composition and structure, porosity, surface area, pH, and elemental ratios, and surface functional groups of biochar. All the above biochar characteristics depend on the type of feedstock and pyrolysis conditions. However, the concentration and nature of organic pollutants significantly alters the sorption capability of biochar. Therefore, the physicochemical properties of biochar and soils/wastewater, and the nature of organic contaminants, should be evaluated before biochar application to soil and wastewater. Future initiatives, however, are needed to develop biochars with better adsorption capacity, and long-term sustainability for use in the xenobiotic/organic contaminant remediation strategy.
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Affiliation(s)
- Fasih Ullah Haider
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China; College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiukang Wang
- College of Life Sciences, Yan'an University, Yan'an 716000, China.
| | - Usman Zulfiqar
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Muhammad Farooq
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khoud 123, Oman
| | - Saddam Hussain
- Department of Agronomy, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Tariq Mehmood
- College of Environment, Hohai University, Nanjing, China
| | - Muhammad Naveed
- Institute of Soil and Environmental Science, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Yuelin Li
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.
| | - Cai Liqun
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China.
| | - Qudsia Saeed
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Brno, Czechia
| | - Ishtiaq Ahmad
- Department of Horticultural Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Adnan Mustafa
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Brno, Czechia; Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia; Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Prague, Czechia
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22
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Wang G, Ren Y, Bai X, Su Y, Han J. Contributions of Beneficial Microorganisms in Soil Remediation and Quality Improvement of Medicinal Plants. PLANTS (BASEL, SWITZERLAND) 2022; 11:3200. [PMID: 36501240 PMCID: PMC9740990 DOI: 10.3390/plants11233200] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/15/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
Medicinal plants (MPs) are important resources widely used in the treatment and prevention of diseases and have attracted much attention owing to their significant antiviral, anti-inflammatory, antioxidant and other activities. However, soil degradation, caused by continuous cropping, excessive chemical fertilizers and pesticide residues and heavy metal contamination, seriously restricts the growth and quality formation of MPs. Microorganisms, as the major biota in soil, play a critical role in the restoration of the land ecosystem. Rhizosphere microecology directly or indirectly affects the growth and development, metabolic regulation and active ingredient accumulation of MPs. Microbial resources, with the advantages of economic efficiency, harmless to environment and non-toxic to organisms, have been recommended as a promising alternative to conventional fertilizers and pesticides. The introduction of beneficial microbes promotes the adaptability of MPs to adversity stress by enhancing soil fertility, inhibiting pathogens and inducing systemic resistance. On the other hand, it can improve the medicinal quality by removing soil pollutants, reducing the absorption and accumulation of harmful substances and regulating the synthesis of secondary metabolites. The ecological and economic benefits of the soil microbiome in agricultural practices are increasingly recognized, but the current understanding of the interaction between soil conditions, root exudates and microbial communities and the mechanism of rhizosphere microecology affecting the secondary metabolism of MPs is still quite limited. More research is needed to investigate the effects of the microbiome on the growth and quality of different medicinal species. Therefore, the present review summarizes the main soil issues in medicinal plant cultivation, the functions of microbes in soil remediation and plant growth promotion and the potential mechanism to further guide the use of microbial resources to promote the ecological cultivation and sustainable development of MPs.
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Batool M, Rahman SU, Ali M, Nadeem F, Ashraf MN, Harris M, Du Z, Khan WUD. Microbial-assisted soil chromium immobilization through zinc and iron-enriched rice husk biochar. Front Microbiol 2022; 13:990329. [PMID: 36171745 PMCID: PMC9511223 DOI: 10.3389/fmicb.2022.990329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 08/15/2022] [Indexed: 11/13/2022] Open
Abstract
Soil chromium toxicity usually caused by the tannery effluent compromises the environment and causes serious health hazards. The microbial role in strengthening biochar for its soil chromium immobilization remains largely unknown. Hence, this study evaluated the effectiveness of zinc and iron-enriched rice husk biochar (ZnBC and FeBC) with microbial combinations to facilitate the chromium immobilization in sandy loam soil. We performed morphological and molecular characterization of fungal [Trichoderma harzianum (F1), Trichoderma viride (F2)] and bacterial [Pseudomonas fluorescence (B1), Bacillus subtilis (B2)] species before their application as soil ameliorants. There were twenty-five treatments having ZnBC and FeBC @ 1.5 and 3% inoculated with bacterial and fungal isolates parallel to wastewater in triplicates. The soil analyses were conducted in three intervals each after 20, 30, and 40 days. The combination of FeBC 3%+F2 reduced the soil DTPA-extractable chromium by 96.8% after 40 days of incubation (DAI) relative to wastewater. Similarly, 92.81% reduction in chromium concentration was achieved through ZnBC 3%+B1 after 40 DAI compared to wastewater. Under the respective treatments, soil Cr(VI) retention trend increased with time such as 40 > 30 > 20 DAI. Langmuir adsorption isotherm verified the highest chromium adsorption capacity (41.6 mg g−1) with FeBC 3% at 40 DAI. Likewise, principal component analysis (PCA) and heat map disclosed electrical conductivity-chromium positive, while cation exchange capacity-chromium and pH-organic matter negative correlations. PCA suggested the ZnBC-bacterial while FeBC-fungal combinations as effective Cr(VI) immobilizers with >70% data variance at 40 DAI. Overall, the study showed that microbes + ZnBC/FeBC resulted in low pH, high OM, and CEC, which ultimately played a role in maximum Cr(VI) adsorption from wastewater applied to the soil. The study also revealed the interrelation and alternations in soil dynamics with pollution control treatments. Based on primitive soil characteristics such as soil metal concentration, its acidity, and alkalinity, the selection criteria can be set for treatments application to regulate the soil properties. Additionally, FeBC with Trichoderma viride should be tested on the field scale to remediate the Cr(VI) toxicity.
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Affiliation(s)
- Masooma Batool
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - Shafeeq ur Rahman
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, China
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing, China
| | - Muhammad Ali
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
| | - Faisal Nadeem
- Department of Soil Science, University of the Punjab, Lahore, Pakistan
| | - Muhammad Nadeem Ashraf
- Institute of Soil & Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Muhammad Harris
- Department of Environmental Sciences, University of Lahore, Lahore, Pakistan
| | - Zhenjie Du
- Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang, China
- Water Environment Factor Risk Assessment Laboratory of Agricultural Products Quality and Safety, Ministry of Agriculture and Rural Affairs, Xinxiang, China
- *Correspondence: Waqas-ud-Din Khan
| | - Waqas-ud-Din Khan
- Sustainable Development Study Centre, Government College University, Lahore, Pakistan
- Zhenjie Du
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Zhang L, He Y, Lin D, Yao Y, Song N, Wang F. Co-application of biochar and nitrogen fertilizer promotes rice performance, decreases cadmium availability, and shapes rhizosphere bacterial community in paddy soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119624. [PMID: 35718049 DOI: 10.1016/j.envpol.2022.119624] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 06/04/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
Cadmium (Cd) contamination in soil has posed a great threat to crop safety and yield as well as soil quality. Biochar blended with nitrogen fertilizer have been reported to be effective in remediating Cd-contaminated soil. However, the influence of co-application of biochar and nitrogen fertilizer on the Cd bioavailability, rice yield and soil microbiome remains unclear. In this study, eight different treatments including control (CK), 5% biochar (B), 2.6, 3.5, 4.4 g/pot nitrogen fertilizers (N1, N2 and N3), and co-application of biochar and nitrogen fertilizers (BN1, BN2, BN3) were performed in a pot experiment with paddy soil for observations in an entire rice cycle growth period. Results showed single N increased soil available Cd content and Cd uptake in edible part of rice, while the soil available Cd content significantly decreased by 14.8% and 7.4%-11.1% under the B, BN treatments, and the Cd content in edible part of rice was significantly reduced by 35.1% and 18.5%-26.5%, respectively. Besides, B, N and BN treatments significantly increased the yield of rice by 14.3%-86.6% compared with CK, and the highest yield was gained under BN3 treatment. Soil bacterial diversity indices (Shannon, Chao1, observed species and PD whole tree index) under N2, N3 were generally improved. Cluster analysis indicated that bacterial community structures under BN treatments differed from those of CK and single N treatments. BN treatments enhanced the abundances of key bacterial phylum such as Acidobacteria, positively associated with yield, and increased the abundance of Spirochaetes, negatively correlated to soil available Cd and Cd uptake of rice. Furthermore, the regression path analysis (RPA) revealed that pH, organic matter (OM), alkaline hydrolysis of nitrogen (AHN) and available Cd were the major properties influencing Cd content in edible part of rice. Redundancy analysis (RDA) revealed that pH and available Cd played key role in shaping soil bacterial community. Thus, BN is a feasible practice for the improvements of rice growth and remediation of Cd-polluted soil.
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Affiliation(s)
- Li Zhang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Fukang Road 31, Nankai District, Tianjin, 300191, China
| | - Yulei He
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Fukang Road 31, Nankai District, Tianjin, 300191, China
| | - Dasong Lin
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Fukang Road 31, Nankai District, Tianjin, 300191, China.
| | - Yanpo Yao
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Fukang Road 31, Nankai District, Tianjin, 300191, China
| | - Ningning Song
- Qingdao Engineering Research Center for Rural Environment, School of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, PR China
| | - Fangli Wang
- Qingdao Engineering Research Center for Rural Environment, School of Resources and Environment, Qingdao Agricultural University, Qingdao, 266109, PR China
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25
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Efficient Remediation of Cadmium Contamination in Soil by Functionalized Biochar: Recent Advances, Challenges, and Future Prospects. Processes (Basel) 2022. [DOI: 10.3390/pr10081627] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Heavy metal pollution in soil seriously harms human health and animal and plant growth. Among them, cadmium pollution is one of the most serious issues. As a promising remediation material for cadmium pollution in soil, functionalized biochar has attracted wide attention in the last decade. This paper summarizes the preparation technology of biochar, the existing forms of heavy metals in soil, the remediation mechanism of biochar for remediating cadmium contamination in soil, and the factors affecting the remediation process, and discusses the latest research advances of functionalized biochar for remediating cadmium contamination in soil. Finally, the challenges encountered by the implementation of biochar for remediating Cd contamination in soil are summarized, and the prospects in this field are highlighted for its expected industrial large-scale implementation.
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26
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Microbial Inoculation Improves Growth, Nutritional and Physiological Aspects of Glycine max (L.) Merr. Microorganisms 2022; 10:microorganisms10071386. [PMID: 35889105 PMCID: PMC9316164 DOI: 10.3390/microorganisms10071386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/04/2022] [Accepted: 07/08/2022] [Indexed: 02/06/2023] Open
Abstract
Considering a scenario where there is a low availability and increasing costs of fertilizers in the global agricultural market, as well as a finitude of important natural resources, such as phosphorus (P), this study tested the effect of the inoculation of rhizospheric or endophytic microorganisms isolated from Hymenaea courbaril and Butia purpurascens on the growth promotion of Glycine max (L.) Merr. The tests were conducted in a controlled greenhouse system, and the effects of biofertilization were evaluated using the following parameters: dry biomass, nutritional content, and photochemical and photosynthetic performance of plants. Seed biopriming was performed with four bacterial and four fungal isolates, and the results were compared to those of seeds treated with the commercial product Biomaphos®. Overall, microbial inoculation had a positive effect on biomass accumulation in G. max, especially in strains PA12 (Paenibacillus alvei), SC5 (Bacillus cereus), and SC15 (Penicillium sheari). The non-inoculated control plants accumulated less nutrients, both in the whole plant and aerial part, and had reduced chlorophyll index and low photosynthetic rate (A) and photochemical efficiency. Strains PA12 (P. alvei), SC5 (B. cereus), and 328EF (Codinaeopsis sp.) stood out in the optimization of nutrient concentration, transpiration rate, and stomatal conductance. Plants inoculated with the bacterial strains PA12 (P. alvei) and SC5 (B. cereus) and with the fungal strains 328EF (Codinaeopsis sp.) and SC15 (P. sheari) showed the closest pattern to that observed in plants treated with Biomaphos®, with the same trend of direction of the means associated with chlorophyll index, (A), dry mass, and concentration of important nutrients such as N, P, and Mg. We recommend the use of these isolates in field tests to validate these strains for the production of biological inoculants as part of the portfolio of bioinputs available for G. max.
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Samoraj M, Mironiuk M, Witek-Krowiak A, Izydorczyk G, Skrzypczak D, Mikula K, Baśladyńska S, Moustakas K, Chojnacka K. Biochar in environmental friendly fertilizers - Prospects of development products and technologies. CHEMOSPHERE 2022; 296:133975. [PMID: 35182533 DOI: 10.1016/j.chemosphere.2022.133975] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/01/2022] [Accepted: 02/11/2022] [Indexed: 06/14/2023]
Abstract
According to the circular economy concept, the production of fertilizers should be closed in a loop, which prevents excessive emissions and harmful effects to the environment. Biological wastes are problematic to collect and transport. They undergo a biological transformation that causes greenhouse gases emission and sanitary hazards. Biomass sources used for organic or organo-mineral fertilizers must be free of pathogens and rich in macro and microelements. Solid residues can be processed thermally. Biochar is a carbon produced by biomass pyrolysis without oxygen presence and has been used for many years to improve soil quality and enhance the efficiency of fertilization. There are many research works on the use of biochar in fertilization. This study is also extended by the latest developments and technologies from the patent database (recent year) and biochar-based fertilizers market. To the best of our knowledge, there is no such review currently available in scientific databases. Based on the collected data, the best method of biochar management was proposed - soil application. Biochar applied to soil has several advantages: it improves soil structure and its sorption capacity, enhances soil-nutrient retention and water-holding capacity, immobilizes contaminants from soil (sorption), reduces greenhouse gas emissions and soil nutrient leaching losses while stimulating the growth of a plant.
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Affiliation(s)
- Mateusz Samoraj
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, 50-373, Poland.
| | - Małgorzata Mironiuk
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, 50-373, Poland
| | - Anna Witek-Krowiak
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, 50-373, Poland
| | - Grzegorz Izydorczyk
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, 50-373, Poland
| | - Dawid Skrzypczak
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, 50-373, Poland
| | - Katarzyna Mikula
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, 50-373, Poland
| | - Sylwia Baśladyńska
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, 50-373, Poland
| | - Konstantinos Moustakas
- School of Chemical Engineering, National Technical University of Athens, 9 Iroon Polytechniou Str., Zographou Campus, GR-15780, Athens, Greece
| | - Katarzyna Chojnacka
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, 50-373, Poland
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Luigi M, Manglli A, Dragone I, Antonelli MG, Contarini M, Speranza S, Bertin S, Tiberini A, Gentili A, Varvaro L, Tomassoli L, Faggioli F. Effects of Biochar on the Growth and Development of Tomato Seedlings and on the Response of Tomato Plants to the Infection of Systemic Viral Agents. Front Microbiol 2022; 13:862075. [PMID: 35615512 PMCID: PMC9125222 DOI: 10.3389/fmicb.2022.862075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/25/2022] [Indexed: 11/13/2022] Open
Abstract
Biochar is a rich carbon product obtained by pyrolysis of biomass under a limited supply of oxygen. It is composed mainly of aromatic molecules, but its agronomic value is hard to evaluate and difficult to predict due to its great variable characteristics depending on the type of starting biomass and the conditions of pyrolysis. Anyway, it could be used as soil amendment because it increases the soil fertility of acidic soils, increases the agricultural productivity, and seems to provide protection against some foliar and soilborne diseases. In this study, the effects of biochar, obtained from olive pruning, have been evaluated on tomato seedlings growth and on their response to systemic agents' infection alone or added with beneficial microorganisms (Bacillus spp. and Trichoderma spp.). First, experimental data showed that biochar seems to promote the development of the tomato seedlings, especially at concentrations ranging from 1 to 20% (w/w with peat) without showing any antimicrobial effects on the beneficial soil bacteria at the tomato rhizosphere level and even improving their growth. Thus, those concentrations were used in growing tomato plants experimentally infected with tomato spotted wilt virus (TSWV) and potato spindle tuber viroid (PSTVd). The biochar effect was estimated by evaluating three parameters, namely, symptom expression, number of infected plants, and pathogen quantification, using RT-qPCR technique and −ΔΔCt analysis. Biochar at 10–15% and when added with Trichoderma spp. showed that it reduces the replication of PSTVd and the expression of symptoms even if it was not able to block the start of infection. The results obtained on TSWV-infected plants suggested that biochar could contribute to reducing both infection rate and virus replication. For systemic viral agents, such as PSTVd and TSWV, there are no curative control methods, and therefore, the use of prevention means, as can be assumed the use biochar, for example, in the nursery specialized in horticultural crops, can be of great help. These results can be an encouraging starting point to introduce complex biochar formulates among the sustainable managing strategies of plant systemic diseases.
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Affiliation(s)
- Marta Luigi
- Council for Agricultural Research and Economics-Research Centre for Plant Protection and Certification (CREA-DC), Rome, Italy
| | - Ariana Manglli
- Council for Agricultural Research and Economics-Research Centre for Plant Protection and Certification (CREA-DC), Rome, Italy
| | - Immacolata Dragone
- Council for Agricultural Research and Economics-Research Centre for Plant Protection and Certification (CREA-DC), Rome, Italy
| | | | - Mario Contarini
- Department of Agriculture and Forest Sciences, University of Tuscia, Viterbo, Italy
| | - Stefano Speranza
- Department of Agriculture and Forest Sciences, University of Tuscia, Viterbo, Italy
| | - Sabrina Bertin
- Council for Agricultural Research and Economics-Research Centre for Plant Protection and Certification (CREA-DC), Rome, Italy
| | - Antonio Tiberini
- Council for Agricultural Research and Economics-Research Centre for Plant Protection and Certification (CREA-DC), Rome, Italy
| | - Andrea Gentili
- Council for Agricultural Research and Economics-Research Centre for Plant Protection and Certification (CREA-DC), Rome, Italy
| | - Leonardo Varvaro
- Department of Agriculture and Forest Sciences, University of Tuscia, Viterbo, Italy
| | - Laura Tomassoli
- Council for Agricultural Research and Economics-Research Centre for Plant Protection and Certification (CREA-DC), Rome, Italy
| | - Francesco Faggioli
- Council for Agricultural Research and Economics-Research Centre for Plant Protection and Certification (CREA-DC), Rome, Italy
- *Correspondence: Francesco Faggioli
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29
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Patel AK, Singhania RR, Pal A, Chen CW, Pandey A, Dong CD. Advances on tailored biochar for bioremediation of antibiotics, pesticides and polycyclic aromatic hydrocarbon pollutants from aqueous and solid phases. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 817:153054. [PMID: 35026237 DOI: 10.1016/j.scitotenv.2022.153054] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/20/2021] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Biochar is gaining incredible importance for remediation applications due to their attractive removal properties. Moreover, it is becoming ecofriendly, cost-effective and sustainable bioadsorbents towards replacing expensive activated carbons. Studies reveal biochar effectiveness for removal of important and potentially severe organic pollutants such as antibiotics and pesticides. Recent research advancements on biochar modification (physical, chemical and biological) opens greater opportunity to form tailored biochar with improved surface properties than their native forms for offering better removal efficiencies. Further attentions paid towards emergent new modification methods to cover broad-spectrum pollutants using tailored biochar. Current review aims to summarize recent updates upon biochar tailoring, comparative account of tailored biochars removal efficiencies with respect to their native forms and to provide in-depth discussion covering specific interactions of tailored biochars with antibiotics, polycyclic aromatic hydrocarbons (PAHs) and pesticides for their effective removals and degradation from polluted environments. Application of inducer compounds e.g., peroxymonosulfate and sodium percarbonate further improved the biochar role towards degradation of toxic organic pollutants into their less or nontoxic forms. Biochar engineered with specific metals enable them for the same role without inducer compounds. Moreover, microbial interactions with biochar not only improve the bioremediation level further but also degrade the pollutants from the environment and open up better environmental and socio-economic prospects. Application of green, cost-effective and sustainable biochar for remediation of environmentally potential organic pollutants offers economical treatment methods as well as safe environment. These benefits are inline with global trends towards developing a sustainable process for biocircular economy.
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Affiliation(s)
- Anil Kumar Patel
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Reeta Rani Singhania
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Anugunj Pal
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan
| | - Chiu-Wen Chen
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
| | - Ashok Pandey
- Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow 226 001, India
| | - Cheng-Di Dong
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung City, Taiwan.
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30
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Razzaq S, Zhou B, Zia-ur-Rehman M, Aamer Maqsood M, Hussain S, Bakhsh G, Zhang Z, Yang Q, Altaf AR. Cadmium Stabilization and Redox Transformation Mechanism in Maize Using Nanoscale Zerovalent-Iron-Enriched Biochar in Cadmium-Contaminated Soil. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11081074. [PMID: 35448802 PMCID: PMC9024939 DOI: 10.3390/plants11081074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/02/2022] [Accepted: 04/05/2022] [Indexed: 05/15/2023]
Abstract
Cadmium (Cd) is a readily available metal in the soil matrix, which obnoxiously affects plants and microbiota; thus, its removal has become a global concern. For this purpose, a multifunctional nanoscale zerovalent-iron enriched biochar (nZVI/BC) was used to alleviate the Cd-toxicity in maize. Results revealed that the nZVI/BC application significantly enhanced the plant growth (57%), chlorophyll contents (65%), intracellular permeability (61%), and biomass production index (76%) by restraining Cd uptake relative to Cd control. A Cd stabilization mechanism was proposed, suggesting that high dispersion of organic functional groups (C-O, C-N, Fe-O) over the surface of nZVI/BC might induce complex formations with cadmium by the ion exchange process. Besides this, the regular distribution and deep insertion of Fe particles in nZVI/BC prevent self-oxidation and over-accumulation of free radicals, which regulate the redox transformation by alleviating Cd/Fe+ translations in the plant. Current findings have exposed the diverse functions of nanoscale zerovalent-iron-enriched biochar on plant health and suggest that nZVI/BC is a competent material, feasible to control Cd hazards and improve crop growth and productivity in Cd-contaminated soil.
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Affiliation(s)
- Sehar Razzaq
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi’an University of Technology, Xi’an 710048, China;
- Institute of Soil & Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan; (M.Z.-u.-R.); (M.A.M.)
| | - Beibei Zhou
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi’an University of Technology, Xi’an 710048, China;
- Correspondence:
| | - Muhammad Zia-ur-Rehman
- Institute of Soil & Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan; (M.Z.-u.-R.); (M.A.M.)
| | - Muhammad Aamer Maqsood
- Institute of Soil & Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan; (M.Z.-u.-R.); (M.A.M.)
| | - Saddam Hussain
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan;
| | - Ghous Bakhsh
- Training and Publicity, Agriculture Extension, Jaffarabad Balochistan, Dera Allah Yar 08289, Pakistan;
| | - Zhenshi Zhang
- Power China Northwest Engineering Corporation Limited, Xi’an 710065, China; (Z.Z.); (Q.Y.)
| | - Qiang Yang
- Power China Northwest Engineering Corporation Limited, Xi’an 710065, China; (Z.Z.); (Q.Y.)
| | - Adnan Raza Altaf
- School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China;
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31
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Liu M, Linna C, Ma S, Ma Q, Guo J, Wang F, Wang L. Effects of Biochar With Inorganic and Organic Fertilizers on Agronomic Traits and Nutrient Absorption of Soybean and Fertility and Microbes in Purple Soil. FRONTIERS IN PLANT SCIENCE 2022; 13:871021. [PMID: 35401604 PMCID: PMC8990733 DOI: 10.3389/fpls.2022.871021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
Biochar is a kind of organic matter that can be added into the soil as a soil amendment to improve its quality. What are the effects of using biochar on purple soil and soybeans? Can the use of biochar reduce the use of fertilizers? This is our concern. Therefore, we carried out this study. The objectives of our study were to evaluate the effects of biochar, inorganic and organic fertilizer application on plant growth, chlorophyll content, photosynthetic gas exchange, and yield of soybean as well as fertility and microbial community in purple soil, and to appraise the possible reduction rate of inorganic fertilizer under the biochar application. A pot experiment was conducted with three levels of biochar, two levels of inorganic fertilizer, and two levels of organic fertilizer in a randomized complete block. The results indicated that the low rate of biochar together with half rate of inorganic fertilizer and organic fertilizer increased the plant growth of soybean. Meanwhile, the chlorophyll content, root growth, and yield of soybean were increased by 16.61, 197.73, and 96.7%, respectively, with biochar compared with no biochar. The high rate of biochar with half rate of inorganic fertilizer and organic fertilizer can promote the exchange of photosynthetic gas in soybean, and the photosynthetic rate increased by 45.25% compared with the blank control. At the full pod stage, the nitrogen content, phosphorus content, and potassium content of the whole plant under the high rate of biochar were 28.35, 13.65, and 28.78%, respectively, higher than that of the blank control. The application of biochar increased nitrogen, phosphorus, and potassium uptake of soybean. The high rate of biochar with half rate of inorganic fertilizer and organic fertilizer can improve soil nutrient content and soil microbial community. Compared with no biochar treatments, total organic carbon (TOC) increased by 740.28%, and cation exchange capacity (CEC) increased by 54.17%. Phospholipid fatty acid (PLFA) increased by 65.22%, and all kinds of soil microorganisms increased to varying degrees. In conclusion, the application of biochar can reduce the use of organic and inorganic fertilizers, improve the agronomic traits and yield of soybean, and play a positive role in soil nutrients and soil microorganisms.
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Affiliation(s)
| | | | | | | | | | | | - Longchang Wang
- College of Agronomy and Biotechnology, Southwest University, Chongqing, China
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Soil Amendment with Arbuscular Mycorrhizal Fungi and Biochar Improves Salinity Tolerance, Growth, and Lipid Metabolism of Common Wheat (Triticum aestivum L.). SUSTAINABILITY 2022. [DOI: 10.3390/su14063210] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Salt stress in soils impacts grain crop yield. Soil amendment with biochar and arbuscular mycorrhizal alone has been analyzed to improve the growth of several crops under salinity stress. However, the combined application of biochar and arbuscular mycorrhizal fungi for the remediation of salinity and improvement of crop productivity in wheat are rarely discussed and have remained unclear. Therefore, this experiment was performed to investigate the effect with biochar (150 g biochar per each treated pot containing 3 kg soil) and/or arbuscular mycorrhizal fungi (20 g AMF inoculum containing 80% mycorrhizal roots, 100–160 spores, and extraradical hyphae per each treated pot) on the productivity of wheat (Triticum aestivum L.) under four salt stress gradients; 0, 50, 100, and 150 mM NaCl. The results show salinity significantly reduced plant height (9.9% to 22.9%), shoot fresh weight (35.6% to 64.4%), enzymatic activities (34.1% to 39.3%), and photosynthetic pigments—i.e., total chlorophyll contents (75.0%) and carotenoids contents (56.2%) of plants—as compared with control. Under exclusive biochar application, the plants were moderately tolerant to salinity stress, which was evident in their growth, moderately reduced fatty acid content, partially impaired enzymatic activity, and photosynthetic pigments, while under the exclusive AMF application, the wheat plants were relatively sensitive to salinity stress, resulting in impaired growth rate, decreased unsaturated fatty acid composition, enzymatic activity, and photosynthetic pigments. Conversely, under the co-application of biochar and AMF, wheat plants partially increased plant height (14.1%), shoot fresh biomass (75.7%), root fresh biomass (24.9%), partially increased enzymatic activity (49.5%), and unimpaired photosynthetic pigments (30.2% to 54.8%) of wheat under salinity stress. Current findings concluded that exclusive incorporation of biochar, and the synergistic application of AMF and biochar, could be utilized as a promising way to reduce the deleterious effects of salinity stress in wheat production.
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Zulfiqar U, Jiang W, Xiukang W, Hussain S, Ahmad M, Maqsood MF, Ali N, Ishfaq M, Kaleem M, Haider FU, Farooq N, Naveed M, Kucerik J, Brtnicky M, Mustafa A. Cadmium Phytotoxicity, Tolerance, and Advanced Remediation Approaches in Agricultural Soils; A Comprehensive Review. FRONTIERS IN PLANT SCIENCE 2022; 13:773815. [PMID: 35371142 PMCID: PMC8965506 DOI: 10.3389/fpls.2022.773815] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 02/02/2022] [Indexed: 05/03/2023]
Abstract
Cadmium (Cd) is a major environmental contaminant due to its widespread industrial use. Cd contamination of soil and water is rather classical but has emerged as a recent problem. Cd toxicity causes a range of damages to plants ranging from germination to yield suppression. Plant physiological functions, i.e., water interactions, essential mineral uptake, and photosynthesis, are also harmed by Cd. Plants have also shown metabolic changes because of Cd exposure either as direct impact on enzymes or other metabolites, or because of its propensity to produce reactive oxygen species, which can induce oxidative stress. In recent years, there has been increased interest in the potential of plants with ability to accumulate or stabilize Cd compounds for bioremediation of Cd pollution. Here, we critically review the chemistry of Cd and its dynamics in soil and the rhizosphere, toxic effects on plant growth, and yield formation. To conserve the environment and resources, chemical/biological remediation processes for Cd and their efficacy have been summarized in this review. Modulation of plant growth regulators such as cytokinins, ethylene, gibberellins, auxins, abscisic acid, polyamines, jasmonic acid, brassinosteroids, and nitric oxide has been highlighted. Development of plant genotypes with restricted Cd uptake and reduced accumulation in edible portions by conventional and marker-assisted breeding are also presented. In this regard, use of molecular techniques including identification of QTLs, CRISPR/Cas9, and functional genomics to enhance the adverse impacts of Cd in plants may be quite helpful. The review's results should aid in the development of novel and suitable solutions for limiting Cd bioavailability and toxicity, as well as the long-term management of Cd-polluted soils, therefore reducing environmental and human health hazards.
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Affiliation(s)
- Usman Zulfiqar
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Wenting Jiang
- College of Life Sciences, Yan’an University, Yan’an, China
| | - Wang Xiukang
- College of Life Sciences, Yan’an University, Yan’an, China
| | - Saddam Hussain
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Ahmad
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | | | - Nauman Ali
- Agronomic Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
| | - Muhammad Ishfaq
- Department of Agronomy, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Muhammad Kaleem
- Department of Botany, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Fasih Ullah Haider
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, China
| | - Naila Farooq
- Department of Soil and Environmental Science, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Naveed
- Institute of Soil and Environmental Science, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Jiri Kucerik
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Brno, Czechia
| | - Martin Brtnicky
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Brno, Czechia
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
| | - Adnan Mustafa
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Brno, Czechia
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
- Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Prague, Czechia
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34
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Haider FU, Wang X, Farooq M, Hussain S, Cheema SA, Ain NU, Virk AL, Ejaz M, Janyshova U, Liqun C. Biochar application for the remediation of trace metals in contaminated soils: Implications for stress tolerance and crop production. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 230:113165. [PMID: 34998263 DOI: 10.1016/j.ecoenv.2022.113165] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 10/24/2021] [Accepted: 01/02/2022] [Indexed: 05/10/2023]
Abstract
In modern agriculture and globalization, the release of trace metals from manufacturing effluents hinders crop productivity by polluting the atmosphere and degrading food quality. Sustaining food safety in polluted soils is critical to ensure global food demands. This review describes the negative effects of trace metals stress on plant growth, physiology, and yield. Furthermore, also explains the potential of biochar in the remediation of trace metal's contaminations in plants by adoption of various mechanisms such as reduction, ion exchange, electrostatic forces of attraction, precipitation, and complexation. Biochar application enhances the overall productivity, accumulation of biomass, and photosynthetic activity of plants through the regulation of various biochemical and physiological mechanisms of plants cultivated under trace metals contaminated soil. Moreover, biochar scavenges the formation of reactive oxygen species, by activating antioxidant enzyme production i.e., ascorbate peroxidase, catalase, superoxide dismutase, peroxidase, etc. The application of biochar also improves the synthesis of stressed proteins and proline contents in plants thus maintaining the osmoprotectant and osmotic potential of the plant under contaminates stress. Integrated application of biochar with other amendments i.e., microorganisms and plant nutrients to improve trace metal remediation potential of biochar and improving crop production was also highlighted in this review. Moreover, future research needs regarding the application of biochar have also been addressed.
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Affiliation(s)
- Fasih Ullah Haider
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China; Gansu Provincial Key Lab of Arid-land Crop Science, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiukang Wang
- College of Life Sciences, Yan'an University, Yan'an 716000, China.
| | - Muhammad Farooq
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khoud 123, Oman
| | - Saddam Hussain
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan
| | - Sardar Alam Cheema
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Al-Khoud 123, Oman
| | - Noor Ul Ain
- Centre of Genomics and Biotechnology, Fujian Agriculture and Forestry University, Jinshan, Fuzhou, Fujian 350002, China
| | - Ahmad Latif Virk
- Key Laboratory of Farming System, Ministry of Agriculture and Rural Affairs of China, Beijing 100193, China; College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Mukkaram Ejaz
- School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou 730070, Gansu, China
| | - Uulzhan Janyshova
- College of Pharmaceutical Sciences, Gansu University of Chinese Medicine, Lanzhou 730000, China
| | - Cai Liqun
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou 730070, China; Gansu Provincial Key Lab of Arid-land Crop Science, Gansu Agricultural University, Lanzhou 730070, China.
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35
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Liu M, Wang S, Yang M, Ning X, Nan Z. Experimental study on treatment of heavy metal-contaminated soil by manganese-oxidizing bacteria. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:5526-5540. [PMID: 34424469 DOI: 10.1007/s11356-021-15475-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
There are many studies on the treatment of heavy metals by manganese-oxidizing bacteria and the reaction is good; the problem of compound pollution of heavy metals in soil has been difficult to solve. In this study, the application of manganese-oxidizing bacteria in soil was studied. The tolerance of manganese-oxidizing strains (Pseudomonas taiwanensis) to environmental conditions and the treatment effect of heavy metals As, Pb, and Cd in aqueous solution were investigated, and the effect of iron-manganese ratio on the treatment effect was discussed. The results showed that the suitable pH conditions for the growth of P. taiwanensis were 5-9, and the salt tolerance was 6% (by sodium chloride). The tolerant concentrations for heavy metals As(V) and Mn(II) were 500 mg L-1 and 120 mg L-1, respectively. The strains were enriched by nutrient broth medium. After the logarithmic phase, the bacterial suspension was mixed with ATCC#279 medium at a ratio of 1:10, and a certain amount (10 mg L-1) of Mn(II) was added. The results of As, Pb, and Cd removal in the composite polluted water phase were 22.09%, 30.75%, and 35.33%, respectively. The molar ratio of manganese and iron affected the removal efficiency of single arsenic, the highest efficiency is 68%, and the ratio of iron to manganese is 1:5. However, when the soil was treated by the same method, the results showed that not all metals were passivated, such as Cu. At the same time, for As, Pb, and Cd, the treatment effects in soil were worse than those in water, perhaps more consideration should be given to environmental conditions, such as soil moisture and temperature, when manganese-oxidizing bacteria are used to treat soil.
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Affiliation(s)
- Mengbo Liu
- College of Earth and Environmental Sciences, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Shengli Wang
- College of Earth and Environmental Sciences, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China.
| | - Meng Yang
- College of Earth and Environmental Sciences, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Xiang Ning
- College of Earth and Environmental Sciences, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
| | - Zhongren Nan
- College of Earth and Environmental Sciences, Lanzhou University, 222 Tianshui South Road, Lanzhou, 730000, China
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36
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Haider FU, Farooq M, Naveed M, Cheema SA, Ain NU, Salim MA, Liqun C, Mustafa A. Influence of biochar and microorganism co-application on stabilization of cadmium (Cd) and improved maize growth in Cd-contaminated soil. FRONTIERS IN PLANT SCIENCE 2022; 13:983830. [PMID: 36160996 PMCID: PMC9493347 DOI: 10.3389/fpls.2022.983830] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/15/2022] [Indexed: 05/06/2023]
Abstract
Cadmium (Cd) is one the leading environmental contaminants. The Cd toxicity and its potential stabilization strategies have been investigated in the recent years. However, the combined effects of biochar and microorganisms on the adsorption of Cd and maize plant physiology, still remained unclear. Therefore, this experiment was conducted to evaluate the combined effects of biochar (BC) pyrolyzed from (maize-straw, cow-manure, and poultry-manure, and microorganisms [Trichoderma harzianum (fungus) and Bacillus subtilis (bacteria)], on plant nutrient uptake under various Cd-stress levels (0, 10, and 30 ppm). The highest level of Cd stress (30 ppm) caused the highest reduction in maize plant biomass, intercellular CO2, transpiration rate, water use efficiency, stomatal conductance, and photosynthesis rate as compared to control Cd0 (0 ppm). The sole application of BC and microorganisms significantly improved plant growth, intercellular CO2, transpiration rate, water use efficiency, stomatal conductance, and photosynthesis rate and caused a significant reduction in root and shoot Cd. However, the co-application of BC and microorganisms was more effective than the sole applications. In this regard, the highest improvement in plant growth and carbon assimilation, and highest reduction in root and shoot Cd was recorded from co-application of cow-manure and combined inoculation of Trichoderma harzianum (fungus) + Bacillus subtilis (bacteria) under Cd stress. However, due to the aging factor and biochar leaching alkalinity, the effectiveness of biochar in removing Cd may diminish over time, necessitating long-term experiments to improve understanding of biochar and microbial efficiency for specific bioremediation aims.
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Affiliation(s)
- Fasih Ullah Haider
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, China
- Gansu Provincial Key Laboratory of Arid Land Crop Science, Gansu Agricultural University, Lanzhou, China
| | - Muhammad Farooq
- Department of Plant Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, Seeb, Oman
| | - Muhammad Naveed
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | | | - Noor ul Ain
- Centre of Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China
| | | | - Cai Liqun
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, China
- Gansu Provincial Key Laboratory of Arid Land Crop Science, Gansu Agricultural University, Lanzhou, China
- *Correspondence: Cai Liqun
| | - Adnan Mustafa
- Faculty of Chemistry, Institute of Chemistry and Technology of Environmental Protection, Brno University of Technology, Brno, Czechia
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Brno, Czechia
- Institute for Environmental Studies, Faculty of Science, Charles University in Prague, Prague, Czechia
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37
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Han T, Sun M, Zhao J, Dai C, Li Y, Zhang P, Lang D, Zhou J, Li X, Ge S. The roles of cadmium on growth of seedlings by analysing the composition of metabolites in pumpkin tissues. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 226:112817. [PMID: 34563888 DOI: 10.1016/j.ecoenv.2021.112817] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 09/14/2021] [Accepted: 09/20/2021] [Indexed: 06/13/2023]
Abstract
Changes in the types and contents of metabolites in plants can occur in response to environmental stress. In this study, pumpkin seeds were cultivated in a cadmium ion solution (cadmium sulfate) for 7 days, and growth parameters, antioxidant enzyme activities, and metabolites in the root, stem, and leaf were analyzed. The results showed that cadmium accumulation characteristics were in the order of root > stem > leaf. Cadmium restrained root growth and promoted superoxide dismutase, peroxidase, catalase activities in the root, but inhibited their activities in the leaf. Cadmium did not change the total biomass of pumpkin seedlings. Orthogonal partial least squares (OPLS) analyses were conducted to detect the relationships between fresh weight and metabolites. These analyses revealed that maltose had significantly positive relationships with the fresh weight of the root, stem, and leaf. Cadmium influenced glyoxylate and dicarboxylate metabolism, aminoacyl-tRNA biosynthesis, sulfur metabolism, butanoate metabolism, alanine, aspartate and glutamate metabolism, glutathione metabolism, glycine, serine and threonine metabolism in the root; glycolysis/gluconeogenesis in the stem; and biosynthesis of unsaturated fatty acids, galactose metabolism, cutin, suberine and wax biosynthesis in the leaf. It is important that cadmium inhibited root growth by inhibiting carbohydrate transport from the leaf to the root and promoted leaf growth by the accumulation of carbohydrates in the leaf. Furthermore, cadmium also restrained amino acid metabolism in the root of pumpkin seedlings. These results provide new information about how pumpkin seedlings respond to cadmium stress.
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Affiliation(s)
- Tao Han
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China; Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang 453003, China
| | - Mengyuan Sun
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China; Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang 453003, China
| | - Jinjin Zhao
- Department of Clinical Laboratory, The First Affiliated Hospital of Xinxiang Medical University, Weihui 453100, China
| | - Chunying Dai
- Autobio Diagnostics CO., Ltd., Zhengzhou 450016, China
| | - Yang Li
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China; Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang 453003, China
| | - Peng Zhang
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China; Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang 453003, China
| | - Dongmei Lang
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China; Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang 453003, China
| | - Junguo Zhou
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China; Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang 453003, China
| | - Xinzheng Li
- School of Horticulture and Landscape Architecture, Henan Institute of Science and Technology, Xinxiang 453003, China; Henan Province Engineering Research Center of Horticultural Plant Resource Utilization and Germplasm Enhancement, Xinxiang 453003, China
| | - Shidong Ge
- College of Landscape Architecture and Art, Henan Agricultural University, Zhengzhou 450002, China.
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Haider FU, Virk AL, Rehmani MIA, Skalicky M, Ata-ul-Karim ST, Ahmad N, Soufan W, Brestic M, Sabagh AEL, Liqun C. Integrated Application of Thiourea and Biochar Improves Maize Growth, Antioxidant Activity and Reduces Cadmium Bioavailability in Cadmium-Contaminated Soil. FRONTIERS IN PLANT SCIENCE 2021; 12:809322. [PMID: 35178057 PMCID: PMC8845445 DOI: 10.3389/fpls.2021.809322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 12/10/2021] [Indexed: 05/15/2023]
Abstract
Cadmium (Cd) contamination of croplands jeopardizes sustainable crop production and human health. However, curtailing Cd transfer and mobility in the rhizosphere-plant system is challenging. Sole application of biochar (BC) and thiourea (TU) has been reported to restrain Cd toxicity and uptake in plants. However, the combined applications of BC and TU in mitigating the harmful effects of Cd on plants have not yet been thoroughly investigated. Therefore, this study attempts to explore the integrated impact of three maize stalk BC application rates [B 0 (0% w/w), B 1 (2.5% w/w), and B 2 (5% w/w)] and three TU foliar application rates [T 0 (0 mg L-1), T 1 (600 mg L-1), and T 2 (1,200 mg L-1)] in remediating the adverse effects of Cd on maize growth, development, and physiology. Results demonstrated that Cd concentration in soil inhibited plant growth by reducing leaf area, photosynthesis activity, and enhanced oxidative stress in maize. Nevertheless, BC and TU application in combination (B 2 T 2) improved the fresh biomass, shoot height, leaf area, and photosynthesis rate of maize plants by 27, 42, 36, and 15%, respectively, compared with control (B 0 T 0). Additionally, the oxidative stress values [malondialdehyde (MDA), hydrogen peroxide (H2O2), and electrolyte leakage (EL)] were minimized by 26, 20, and 21%, respectively, under B 2 T 2 as compared with B 0 T 0. Antioxidant enzyme activities [superoxide dismutase (SOD) and catalase (CAT)] were 81 and 58%, respectively, higher in B 2 T 2 than in B 0 T 0. Besides, the shoot and root Cd concentrations were decreased by 42 and 49%, respectively, under B 2 T 2 compared with B 0 T 0. The recent study showed that the integrated effects of BC and TU have significant potential to improve the growth of maize on Cd-contaminated soil by reducing Cd content in plant organs (shoots and roots).
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Affiliation(s)
- Fasih Ullah Haider
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, China
| | - Ahmad Latif Virk
- College of Agronomy and Biotechnology, China Agricultural University, Key Laboratory of Farming System, Ministry of Agriculture and Rural Affairs of China, Beijing, China
| | - Muhammad Ishaq Asif Rehmani
- Departmet of Agronomy, Ghazi University, Dera Ghazi Khan, Pakistan
- *Correspondence: Muhammad Ishaq Asif Rehmani,
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
| | | | - Naeem Ahmad
- College of Agronomy, Northwest A&F University, Yangling, China
| | - Walid Soufan
- Department of Plant Production, College of Food and Agriculture, King Saud University, Riyadh, Saudi Arabia
| | - Marian Brestic
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czechia
- Institute of Plant and Environmental Sciences, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Nitra, Slovakia
| | - Ayman E. L. Sabagh
- Department of Agronomy, Faculty of Agriculture, Kafrelsheikh University, Kafr el-Sheikh, Egypt
- Ayman E. L. Sabagh,
| | - Cai Liqun
- College of Resources and Environmental Sciences, Gansu Agricultural University, Lanzhou, China
- Cai Liqun,
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