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Geng A, Lian W, Wang Y, Liu M, Zhang Y, Wang X, Chen G. The Molecular Mechanism of the Response of Rice to Arsenic Stress and Effective Strategies to Reduce the Accumulation of Arsenic in Grain. Int J Mol Sci 2024; 25:2861. [PMID: 38474107 DOI: 10.3390/ijms25052861] [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: 12/22/2023] [Revised: 02/18/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
Rice (Oryza sativa L.) is the staple food for more than 50% of the world's population. Owing to its growth characteristics, rice has more than 10-fold the ability to enrich the carcinogen arsenic (As) than other crops, which seriously affects world food security. The consumption of rice is one of the primary ways for humans to intake As, and it endangers human health. Effective measures to control As pollution need to be studied and promoted. Currently, there have been many studies on reducing the accumulation of As in rice. They are generally divided into agronomic practices and biotechnological approaches, but simultaneously, the problem of using the same measures to obtain the opposite results may be due to the different species of As or soil environments. There is a lack of systematic discussion on measures to reduce As in rice based on its mechanism of action. Therefore, an in-depth understanding of the molecular mechanism of the accumulation of As in rice could result in accurate measures to reduce the content of As based on local conditions. Different species of As have different toxicity and metabolic pathways. This review comprehensively summarizes and reviews the molecular mechanisms of toxicity, absorption, transport and redistribution of different species of As in rice in recent years, and the agronomic measures to effectively reduce the accumulation of As in rice and the genetic resources that can be used to breed for rice that only accumulates low levels of As. The goal of this review is to provide theoretical support for the prevention and control of As pollution in rice, facilitate the creation of new types of germplasm aiming to develop without arsenic accumulation or within an acceptable limit to prevent the health consequences associated with heavy metal As as described here.
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Affiliation(s)
- Anjing Geng
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Wenli Lian
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Yihan Wang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Minghao Liu
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Yue Zhang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Xu Wang
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
| | - Guang Chen
- Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
- Key Laboratory of Testing and Evaluation for Agro-Product Safety and Quality, Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China
- Guangdong Provincial Key Laboratory of Quality & Safety Risk Assessment for Agro-Products, Guangzhou 510640, China
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Liu Q, Bai C, Zhang Z, Yin X, Lin W, Huang Y, Yao L. Straw incorporation induces rice straighthead disease in As-contaminated paddy soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:167383. [PMID: 37758142 DOI: 10.1016/j.scitotenv.2023.167383] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/06/2023] [Accepted: 09/24/2023] [Indexed: 10/02/2023]
Abstract
Rice straw incorporation is globally recognized as a viable alternative to incineration. However, it might lead to arsenic (As) methylation in soils, resulting in increased accumulation of methylated As in rice plants, potentially contributing to the emergence of rice straighthead disease. To evaluate the effect of straw incorporation on the As transformation in the paddy field system, we conducted a pot experiment for rice cultivation in two paddy soils with different As background levels and also characterized the response of the soil microbial community to straw incorporation. The results showed that straw incorporation elevated the total and methylated As concentration within the soil solution and rice plants, which in turn reduced rice seed setting rate and yield, and caused straighthead disorder in rice cultivated in soils with high As levels. 16S rRNA-based sequencing demonstrated reduced abundance and diversity of microorganisms upon adding straw. Notably, the dominant phylum, Bacteroidetes, exhibited a significant increase in abundance due to straw integration, while the abundance of Proteobacteria and Acidobacteria decreased. At the family level, the prevalence of Rikenellaceae increased only in soils contaminated with As following straw incorporation. Redundancy analysis showed positive associations between Rikenellaceae and levels of methylated As present in both soil porewater and rice husks, suggesting a potentially pivotal role of Rikenellaceae in the As methylation process after straw integration. These findings collectively emphasize that including straw can reshape the soil's microbial community and amplify As methylation in the soil, thereby promoting the uptake and accumulation of methylated As in rice and inducing straighthead disease in As-contaminated soil.
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Affiliation(s)
- Qinghui Liu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Cuihua Bai
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou 510642, China.
| | - Zhijun Zhang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Xueying Yin
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Wanting Lin
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yinghui Huang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Lixian Yao
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou 510642, China.
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Juang KW, Tsai T, Syu CH, Chen BC. Screen for low-arsenic-risk rice varieties based on environment-genotype interactions by using GGE analysis. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 46:4. [PMID: 38085345 DOI: 10.1007/s10653-023-01795-2] [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: 10/04/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023]
Abstract
Arsenic (As) accumulation in rice is a global health concern that has received increased attention in recent years. In this study, 12 rice genotypes were cultivated at four As-contaminated paddy sites in Taiwan. According to the different crop seasons and As levels in the soil, the sites were further divided into 18 environmental conditions. For As in soils, results showed that 67% of the studied environments were likely to represent As contamination. For As in rice, the mean total As concentration in brown rice grains ranged from 0.17 to 0.45 mg kg-1. The analysis of variance for the environment effect indicated that grain As concentration was mainly affected by the environmental conditions, suggesting that there was a remarkable degree of variation across the trial environments. According to the combination of the GGE biplot and cumulative distribution function of order statistics (CDFOS) analysis, five genotypes-TCS17, TCS10, TT30, KH139, and TC192-were regarded as stable, low-risk genotypes because the probability of grain As concentration exceeding the maximum permissible concentration (MPC) was lower for these genotypes across all environmental conditions. Particularly, TCS17 was recommended to be the safest rice genotype. Thus, grain As levels in the selected genotypes were applied to assess the health risk to Taiwanese residents associated with As exposure through rice consumption. Results showed that the upper 75th percentile values of the hazard quotient were all less than unity. This suggested that the health risk associated with consuming the selected rice genotypes was acceptable for most of the residents. The methodology developed here would be applicable to screen for stable, low-As-risk rice genotypes across multiple field environments in other regions or countries.
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Affiliation(s)
- Kai-Wei Juang
- Department of Agronomy, National Chiayi University, Chiayi County, Taiwan
| | - Ting Tsai
- Department of Agronomy, National Chiayi University, Chiayi County, Taiwan
- Department of Natural Biotechnology, Nanhua University, No. 55, Sec. 1, Nanhua Rd., Dalin Township, Chiayi County, 622, Taiwan
| | - Chien-Hui Syu
- Agricultural Chemistry Division, Taiwan Agricultural Research Institute, Taichung City, Taiwan
| | - Bo-Ching Chen
- Department of Natural Biotechnology, Nanhua University, No. 55, Sec. 1, Nanhua Rd., Dalin Township, Chiayi County, 622, Taiwan.
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Etesami H, Jeong BR, Maathuis FJM, Schaller J. Exploring the potential: Can arsenic (As) resistant silicate-solubilizing bacteria manage the dual effects of silicon on As accumulation in rice? THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166870. [PMID: 37690757 DOI: 10.1016/j.scitotenv.2023.166870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023]
Abstract
Rice (Oryza sativa L.) cultivation in regions marked by elevated arsenic (As) concentrations poses significant health concerns due to As uptake by the plant and its subsequent entry into the human food chain. With rice serving as a staple crop for a substantial share of the global population, addressing this issue is critical for food security. In flooded paddy soils, where As availability is pronounced, innovative strategies to reduce As uptake and enhance agricultural sustainability are mandatory. Silicon (Si) and Si nanoparticles have emerged as potential candidates to mitigate As accumulation in rice. However, their effects on As uptake exhibit complexity, influenced by initial Si levels in the soil and the amount of Si introduced through fertilization. While low Si additions may inadvertently increase As uptake, higher Si concentrations may alleviate As uptake and toxicity. The interplay among existing Si and As availability, Si supplementation, and soil biogeochemistry collectively shapes the outcome. Adding water-soluble Si fertilizers (e.g., Na2SiO3 and K2SiO3) has demonstrated efficacy in mitigating As toxicity stress in rice. Nonetheless, the expense associated with these fertilizers underscores the necessity for low cost innovative solutions. Silicate-solubilizing bacteria (SSB) resilient to As hold promise by enhancing Si availability by accelerating mineral dissolution within the rhizosphere, thereby regulating the Si biogeochemical cycle in paddy soils. Promoting SSB could make cost-effective Si sources more soluble and, consequently, managing the intricate interplay of Si's dual effects on As accumulation in rice. This review paper offers a comprehensive exploration of Si's nuanced role in modulating As uptake by rice, emphasizing the potential synergy between As-resistant SSB and Si availability enhancement. By shedding light on this interplay, we aspire to shed light on an innovative attempt for reducing As accumulation in rice while advancing agricultural sustainability.
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Affiliation(s)
| | - Byoung Ryong Jeong
- Division of Applied Life Science, Graduate School, Gyeongsang National University, Republic of Korea 52828
| | | | - Jörg Schaller
- "Silicon Biogeochemistry" Working Group, Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, Germany
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5
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Dong Z, Guo L, Li X, Li Y, Liu W, Chen Z, Liu L, Liu Z, Guo Y, Pan X. Genome-Wide Association Study of Arsenic Accumulation in Polished Rice. Genes (Basel) 2023; 14:2186. [PMID: 38137008 PMCID: PMC10742485 DOI: 10.3390/genes14122186] [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: 10/24/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
The accumulation of arsenic (As) in rice poses a significant threat to food safety and human health. Breeding rice varieties with low As accumulation is an effective strategy for mitigating the health risks associated with arsenic-contaminated rice. However, the genetic mechanisms underlying As accumulation in rice grains remain incompletely understood. We evaluated the As accumulation capacity of 313 diverse rice accessions grown in As-contaminated soils with varying As concentrations. Six rice lines with low As accumulation were identified. Additionally, a genome-wide association studies (GWAS) analysis identified 5 QTLs significantly associated with As accumulation, with qAs4 being detected in both of the experimental years. Expression analysis demonstrated that the expression of LOC_Os04g50680, which encodes an MYB transcription factor, was up-regulated in the low-As-accumulation accessions compared to the high-As-accumulation accessions after As treatment. Therefore, LOC_Os04g50680 was selected as a candidate gene for qAs4. These findings provide insights for exploiting new functional genes associated with As accumulation and facilitating the development of low-As-accumulation rice varieties through marker-assisted breeding.
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Affiliation(s)
- Zheng Dong
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
| | - Liang Guo
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
| | - Xiaoxiang Li
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
| | - Yongchao Li
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
| | - Wenqiang Liu
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
| | - Zuwu Chen
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
| | - Licheng Liu
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
| | - Zhixi Liu
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
| | - Yujing Guo
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
| | - Xiaowu Pan
- Hunan Rice Research Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
- Key Laboratory of Indica Rice Genetics and Breeding in the Middle and Lower Reaches of Yangtze River Valley, Ministry of Agriculture, Changsha 410125, China
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6
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Mlangeni AT. Methylation of arsenic in rice: Mechanisms, factors, and mitigation strategies. Toxicol Rep 2023; 11:295-306. [PMID: 37789952 PMCID: PMC10543780 DOI: 10.1016/j.toxrep.2023.09.018] [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: 05/25/2023] [Revised: 09/16/2023] [Accepted: 09/23/2023] [Indexed: 10/05/2023] Open
Abstract
Arsenic contamination in rice poses a significant health risk to rice consumers across the globe. This review examines the impact of water source and type on the speciation and methylation of arsenic in rice. The review highlights that groundwater used for irrigation in arsenic-affected regions can lead to higher total arsenic content in rice grains and lower proportions of methylated arsenic species. The methylation of As in rice is influenced by microbial activity in groundwater, which can methylate arsenic that is taken up by rice plants. Reclaimed water irrigation can also increase the risk of arsenic accumulation in rice crops, although the use of organic amendments and proper water management practices can reduce arsenic accumulation. Different water management regimes, such as continuous flooding irrigation, alternate wetting and drying, aerobic rice cultivation, and subsurface drip irrigation, can affect the speciation and methylation of As in rice. Continuous flooding irrigation reduces methylation of As due to anaerobic conditions, while alternate wetting and drying and aerobic rice cultivation promote methylation by creating aerobic conditions that stimulate the activity of arsenic-methylating microorganisms. Subsurface drip irrigation reduces total arsenic content in rice grains and increases the proportion of less toxic methylated arsenic species. The review also discusses the complex mechanisms of As-methylation and transport in rice, emphasizing the importance of understanding these mechanisms to develop strategies for reducing arsenic uptake in rice plants and mitigating health risks. The review addresses the impact of water source and type on arsenic speciation and methylation in rice and highlights the need for proper water management and treatment measures to ensure the safety of the food supply as well as aiding future research and policies to reduce health risks from rice consumption. The critical information gaps that this review addresses include the specific effects of different water management regimes on As-methylation, the role of microbial communities in groundwater in As-methylation, and the potential risks associated with the use of reclaimed water for irrigation.
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Piracha MA, Ashraf M, Shahzad SM, Masood S, Akhtar N, Kausar R, Shakoor A. Arsenic fractionation and speciation in different textured soils supplied with farmyard manure and accumulation by sunflower under alkaline calcareous conditions. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:103141-103152. [PMID: 37682438 DOI: 10.1007/s11356-023-29659-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/29/2023] [Indexed: 09/09/2023]
Abstract
Arsenic (As) is a naturally occurring element that is found in soil, water, and rocks. However, it can also be released into the environment through human activities. Arsenic is considered an environmental hazard because it is toxic to humans and animals and can cause serious health problems. Additionally, As-contaminated soil can limit plant growth and reduce crop yields, leading to economic losses for farmers. So, decreasing metal/metalloid solubility in soil by synthetic and organic amendments leads to better crop productivity on contaminated soils. The current study aimed to evaluate farmyard manure (FYM)-mediated changes in soil arsenic (As) behavior, and subsequent effects on achene yield of sunflower. Treatment plan comprised of two As levels, i.e., As-60 (60 mg kg-1) and As-120 (120 mg kg-1), four FYM levels (0, 20, 35, and 50 g kg-1), three textural types (sandy, loamy and clayey), and replicated thrice. Seven As fractions including water soluble-As (WS-As), labile-As (L-As), calcium-bound As (Ca-As), aluminum-bound As (Al-As), iron-bound As (Fe-As), organic-matter-bound As (OM-As), and residual-As (R-As) were determined which differed significantly (P ≤ 0.05) with FYM and soil texture. FYM supplementation decreased WS-As, L-As, Ca-As, and Al-As while increased Fe-As, OM-As, and R-As. The immobilizing effect of FYM increased with increasing its rate of application, and maximum effect was found in clayey soil. As speciation in soil also significantly (P ≤ 0.05) affected by FYM and soil texture, with a reduction in arsenate while increase in arsenite, mono-methyl arsenate, and di-methyl arsenate with increasing the rate of FYM supplementation. Bioaccumulation factor reduced with FYM addition, and highest reduction of 38.65 and 42.13% in sandy, 34.24 and 36.26% in loamy while 29.16 and 35.10% in clayey soils at As-60 and As-120, respectively, by 50 g kg-1 FYM compared with respective As treatments without FYM. As accumulation in plant parts was significantly (P ≤ 0.05) reduced by FYM with the subsequent improvement in achene yield.
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Affiliation(s)
| | - Muhammad Ashraf
- Department of Soil & Environmental Sciences, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Sher Muhammad Shahzad
- Department of Soil & Environmental Sciences, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Sajid Masood
- Department of Soil Science, Bahauddin Zakariya University, Multan, Pakistan
| | - Naeem Akhtar
- Department of Plant Breeding and Genetics, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Rizwana Kausar
- Soil and Water Testing Laboratory for Research, Sargodha, Punjab, Pakistan
| | - Awais Shakoor
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, 2751, Australia.
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Jiang O, Li L, Duan G, Gustave W, Zhai W, Zou L, An X, Tang X, Xu J. Root exudates increased arsenic mobility and altered microbial community in paddy soils. J Environ Sci (China) 2023; 127:410-420. [PMID: 36522072 DOI: 10.1016/j.jes.2022.05.036] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/23/2022] [Accepted: 05/24/2022] [Indexed: 06/17/2023]
Abstract
Root exudates are crucial for plants returning organic matter to soils, which is assumed to be a major source of carbon for the soil microbial community. This study investigated the influence of root exudates on the fate of arsenic (As) with a lab simulation experiment. Our findings suggested that root exudates had a dose effect on the soil physicochemical properties, As speciation transformation and the microbial community structure at different concentrations. The addition of root exudates increased the soil pH while decreased the soil redox potential (Eh). These changes in the soil pH and Eh increased As and ferrous (Fe(II)) concentrations in soil porewater. Results showed that 40 mg/L exudates addition significantly increased arsenite (As(III)) and arsenate (As(V)) by 541 and 10 times respectively within 30 days in soil porewater. The relative abundance of Fe(III)-reducing bacteria Geobacter and Anaeromyxobacter increased with the addition of root exudates, which enhanced microbial Fe reduction. Together these results suggest that investigating how root exudates affect the mobility and transformation of As in paddy soils is helpful to systematically understand the biogeochemical cycle of As in soil-rice system, which is of great significance for reducing the health risk of soil As contamination.
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Affiliation(s)
- Ouyuan Jiang
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Lvyao Li
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Guilan Duan
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Williamson Gustave
- School of Chemistry, Environmental & Life Sciences, University of The Bahamas, New Providence, Nassau, Bahamas
| | - Weiwei Zhai
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Lina Zou
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China; Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops Research, Flower Research and Development Centre, Zhejiang Academy of Agricultural Sciences, Hangzhou 311202, China.
| | - Xia An
- Zhejiang Xiaoshan Institute of Cotton & Bast Fiber Crops Research, Flower Research and Development Centre, Zhejiang Academy of Agricultural Sciences, Hangzhou 311202, China
| | - Xianjin Tang
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
| | - Jianming Xu
- Institute of Soil and Water Resources and Environmental Science, Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, Hangzhou 310058, China
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9
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Fang W, Yang D, Williams PN, Yang Y. Distinct response of arsenic speciation and bioavailability to different exogenous organic matter in paddy soil. CHEMOSPHERE 2022; 309:136653. [PMID: 36191771 DOI: 10.1016/j.chemosphere.2022.136653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Land application of organic waste has been increasingly encouraged since it could sequester carbon to mitigate climate change. Considering the susceptibility of arsenic (As) bioavailability in soils to organic matter, understanding the influence of different exogenous organic matter on As biogeochemical behavior in rice-soil system is crucial to reasonably recycle organic waste on soils and ensure the food safety. In this study, impacts of two typical organic matter amendments, rice straw and humic substance, on the As speciation and bioavailability in paddy soil were investigated. Results showed that addition of both rice straw and humic substance could increase the dissolved organic carbon (DOC) content in soil solution by 16.4%-34.4% and 21.7%-53.2%, respectively, but the response of As speciation and bioavailability was quite different, showing the decoupling between As release and DOC. Rice straw addition increased As release to porewater by 28.0%-28.4%, particularly at the initial 0-18 days after the soil was flooded, but humic substance presented the opposite effect, decreasing As release by 27.4%-43.1% which was mainly attributable to the AsIII immobilization. This study suggests that the organic matter with high contents of labile heteroaliphatic/aliphatic carbon, being easily to be biodegraded, should not be applied on As contaminated soils.
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Affiliation(s)
- Wen Fang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu, 210023, China.
| | - Danxing Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu, 210023, China
| | - Paul N Williams
- Institute for Global Food Security, Queen's University Belfast, David Keir Building, Malone Road, Belfast BT9 5BN, Northern Ireland, UK
| | - Yi Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu, 210023, China
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10
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Cerqueira B, Covelo EF, Rúa-Díaz S, Marcet P, Forján R, Gallego JLR, Trakal L, Beesley L. Contrasting mobility of arsenic and copper in a mining soil: A comparative column leaching and pot testing approach. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 318:115530. [PMID: 35752005 DOI: 10.1016/j.jenvman.2022.115530] [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: 04/13/2022] [Revised: 06/06/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
The remediation of legacy metal(loid) contaminated soils in-situ relies on the addition of [organic] amendments to reduce the mobility and bioavailability of metal(loid)s, improve soil geochemical parameters and restore vegetation growth. Two vermicomposts of food and animal manure waste origin (V1 and V2) were amended to an arsenic (As) and copper (Cu) contaminated mine soil (≤1500 mg kg-1). Leaching columns and pot experiments evaluated copper and arsenic in soil pore waters, as well as pH, dissolved organic carbon (DOC) and phosphate (PO43-) concentrations. The uptake of As and Cu to ryegrass was also measured via the pot experiment, whilst recovered biochars from the column leaching test were measured for metal sorption at the termination of leaching. Vermicompost amendment to soil facilitated ryegrass growth which was entirely absent from the untreated soil in the pot test. All amendment combinations raised pore water pH by ∼4 units. Copper concentrations in pore waters from columns and pots showed steep reductions (∼1 mg L-1), as a result of V1 & V2 compared to untreated soil (∼500 mg L-1). Combined with an increase in DOC and PO43-, As was mobilised an order of magnitude by V1. Biochar furthest reduced Cu in pore waters from the columns to <0.1 mg L-1, as a result of surface sorption. The results of this study indicate that biochar can restrict the mobility of Cu from a contaminated mine soil after other amendment interventions have been used to promote revegetation. However, the case of As, biochar cannot counter the profound impact of vermicompost on arsenic mobility.
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Affiliation(s)
- Beatriz Cerqueira
- Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, Vigo, Spain; Environmental and Geochemical Sciences Department, The James Hutton Institute, Craigiebuckler, Aberdeen AB158QH, UK.
| | - Emma F Covelo
- Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, Vigo, Spain
| | - Sandra Rúa-Díaz
- Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, Vigo, Spain
| | - Purificación Marcet
- Department of Plant Biology and Soil Science, Faculty of Biology, University of Vigo, Vigo, Spain
| | - Rubén Forján
- Environmental Biogeochemistry & Raw Materials Group and INDUROT, University of Oviedo, Mieres, Spain
| | - José Luis R Gallego
- Environmental Biogeochemistry & Raw Materials Group and INDUROT, University of Oviedo, Mieres, Spain
| | - Lukas Trakal
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Praha 6 Suchdol, Czech Republic
| | - Luke Beesley
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 16500 Praha 6 Suchdol, Czech Republic; Environmental and Geochemical Sciences Department, The James Hutton Institute, Craigiebuckler, Aberdeen AB158QH, UK
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11
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Zhang G, Huang Q, Song K, Zhu X, Ma J, Zhang Y, Yan X, Xu H. Gaseous emissions and grain-heavy metal contents in rice paddies: A three-year partial organic substitution experiment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 826:154106. [PMID: 35219683 DOI: 10.1016/j.scitotenv.2022.154106] [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: 07/11/2021] [Revised: 02/19/2022] [Accepted: 02/19/2022] [Indexed: 06/14/2023]
Abstract
To reduce the utilization of chemical fertilisers, which cause substantial nitrogen loss and widespread nonpoint source pollution, the application of organic manure has become an increasingly popular alternative in rice agriculture. It plays key roles in improving soil quality and maintaining rice yields, but its integrated impacts on trace gas emissions and heavy metal contents in rice grains remain poorly documented. We conducted a three-year field experiment with two application ratios (25% and 50%) of sewage sludge compost (S) and pig manure compost (P) during the rice season in eastern China. The emissions of methane (CH4), nitrous oxide (N2O), ammonia (NH3), and the grain contents of nickel (Ni), copper (Cu), zinc (Zn), cadmium (Cd), and lead (Pb) were measured. Compared with urea, partial organic application, particularly 50%S and 50%P, led to a considerable increase in CH4 emission (52%-71%), global warming potential (GWP, 50%-69%), and greenhouse gas intensity (46%-68%). However, it substantially decreased N2O emission and NH3 volatilisation, thus lowering the cumulative nitrogen loss by 32%-62%. Moreover, the average concentrations of Ni, Cu, Zn, Cd, and Pb in rice grains were 100-151 μg kg-1, 2.31-2.78 mg kg-1, 20.3-24.3 mg kg-1, 44.3-123 μg kg-1, and 8.69-15.2 μg kg-1, respectively, which were significantly lower than food standard limits for rice in China. Both 25%S and 50%S achieved the highest grain yields while significantly decreasing grain Ni and Cd contents. Health risk assessment showed that the target hazard quotient of all the metals was <1 (0.006-0.73), and the hazard index that represents additive effects of pollutants was higher than the threshold, except for 25%S and 50%S. The results suggested 25%S as a potential fertilisation practice in rice fields that not only maintains low GWP and high yields but also seldom poses grain pollution or health risks.
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Affiliation(s)
- Guangbin Zhang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Qiong Huang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaifu Song
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoli Zhu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Ma
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Yao Zhang
- Natural Resource Ecology Laboratory, Colorado State University, Fort Collins, CO, USA
| | - Xiaoyuan Yan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Hua Xu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
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12
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Moulick D, Samanta S, Sarkar S, Mukherjee A, Pattnaik BK, Saha S, Awasthi JP, Bhowmick S, Ghosh D, Samal AC, Mahanta S, Mazumder MK, Choudhury S, Bramhachari K, Biswas JK, Santra SC. Arsenic contamination, impact and mitigation strategies in rice agro-environment: An inclusive insight. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149477. [PMID: 34426348 DOI: 10.1016/j.scitotenv.2021.149477] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 07/15/2021] [Accepted: 08/01/2021] [Indexed: 06/13/2023]
Abstract
Arsenic (As) contamination and its adverse consequences on rice agroecosystem are well known. Rice has the credit to feed more than 50% of the world population but concurrently, rice accumulates a substantial amount of As, thereby compromising food security. The gravity of the situation lays in the fact that the population in theAs uncontaminated areas may be accidentally exposed to toxic levels of As from rice consumption. In this review, we are trying to summarize the documents on the impact of As contamination and phytotoxicity in past two decades. The unique feature of this attempt is wide spectrum coverages of topics, and that makes it truly an interdisciplinary review. Aprat from the behaviour of As in rice field soil, we have documented the cellular and molecular response of rice plant upon exposure to As. The potential of various mitigation strategies with particular emphasis on using biochar, seed priming technology, irrigation management, transgenic variety development and other agronomic methods have been critically explored. The review attempts to give a comprehensive and multidiciplinary insight into the behaviour of As in Paddy -Water - Soil - Plate prospective from molecular to post-harvest phase. From the comprehensive literature review, we may conclude that considerable emphasis on rice grain, nutritional and anti-nutritional components, and grain quality traits under arsenic stress condition is yet to be given. Besides these, some emerging mitigation options like seed priming technology, adoption of nanotechnological strategies, applications of biochar should be fortified in large scale without interfering with the proper use of biodiversity.
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Affiliation(s)
- Debojyoti Moulick
- Plant Stress Biology and Metabolomics Laboratory Central Instrumentation Laboratory (CIL), Assam University, Silchar 788 011, India.
| | - Suman Samanta
- Division of Agricultural Physics, Indian Agricultural Research Institute, Pusa, New Delhi 110012, India.
| | - Sukamal Sarkar
- Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741252, West Bengal, India.
| | - Arkabanee Mukherjee
- Indian Institute of Tropical Meteorology, Dr Homi Bhabha Rd, Panchawati, Pashan, Pune, Maharashtra 411008, India.
| | - Binaya Kumar Pattnaik
- Symbiosis Institute of Geoinformatics, Symbiosis International (Deemed University), Pune, Maharashtra, India.
| | - Saikat Saha
- Nadia Krishi Vigyan Kendra, Bidhan Chandra Krishi Viswavidyalaya, Gayeshpur, Nadia 741234, West Bengal, India.
| | - Jay Prakash Awasthi
- Department of Botany, Government College Lamta, Balaghat, Madhya Pradesh 481551, India.
| | - Subhamoy Bhowmick
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India.
| | - Dibakar Ghosh
- Division of Agronomy, ICAR-Indian Institute of Water Management, Bhubaneswar 751023, Odisha, India.
| | - Alok Chandra Samal
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, India.
| | - Subrata Mahanta
- Department of Chemistry, NIT Jamshedpur, Adityapur, Jamshedpur, Jharkhand 831014, India.
| | | | - Shuvasish Choudhury
- Plant Stress Biology and Metabolomics Laboratory Central Instrumentation Laboratory (CIL), Assam University, Silchar 788 011, India.
| | - Koushik Bramhachari
- Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia 741252, West Bengal, India.
| | - Jayanta Kumar Biswas
- Department of Ecological Studies and International Centre for Ecological Engineering, University of Kalyani, Kalyani, West Bengal, India.
| | - Subhas Chandra Santra
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, India.
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13
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Weber AM, Baxter BA, McClung A, Lamb MM, Becker-Dreps S, Vilchez S, Koita O, Wieringa F, Ryan EP. Arsenic speciation in rice bran: Agronomic practices, postharvest fermentation, and human health risk assessment across the lifespan. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 290:117962. [PMID: 34418860 PMCID: PMC8556161 DOI: 10.1016/j.envpol.2021.117962] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/29/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
Arsenic (As) exposure is a global public health concern affecting millions worldwide and stems from drinking water and foods containing As. Here, we assessed how agronomic practices and postharvest fermentation techniques influence As concentrations in rice bran, and calculated health risks from consumption. A global suite of 53 rice brans were tested for total As and speciation. Targeted quantification of inorganic As (iAs) concentrations in rice bran were used to calculate Target Hazard Quotient (THQ) and Lifetime Cancer Risk (LCR) across the lifespan. Mean iAs was highest in Thailand rice bran samples (0.619 mg kg-1) and lowest in Guatemala (0.017 mg kg-1) rice bran samples. When comparing monosodium-methanearsonate (MSMA) treated and the Native-soil counterpart under the irrigation technique Alternate Wetting and Drying (AWD) management, the MSMA treatment had significantly higher total As (p = 0.022), and iAs (p = 0.016). No significant differences in As concentrations were found between conventional and organic production, nor between fermented and non-fermented rice bran. Health risk assessment calculations for the highest iAs-rice bran dosage scenario for adults, children and infants exceeded THQ and LCR thresholds, and LCR was above threshold for median iAs-rice bran. This environmental exposure investigation into rice bran provides novel information with food safety guidance for an emerging global ingredient.
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Affiliation(s)
- Annika M Weber
- Department of Food Science and Human Nutrition, Colorado State University, Fort Collins, CO 80523, USA; Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Bridget A Baxter
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523, USA
| | - Anna McClung
- USDA-Agricultural Research Service, Dale Bumpers National Rice Research Center, Stuttgart, AR 72160, USA
| | - Molly M Lamb
- Department of Epidemiology and Center for Global Health, University of Colorado School of Public Health, Aurora, CO 80045, USA
| | - Sylvia Becker-Dreps
- Departments of Family Medicine and Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599-7595, USA
| | - Samuel Vilchez
- Center of Infectious Diseases, Department of Microbiology and Parasitology, Faculty of Medical Sciences, National Autonomous University of Nicaragua, León (UNAN-León), León, Nicaragua
| | - Ousmane Koita
- Laboratoire de Biologie Moléculaire Appliquée, Campus de Badalabougou, Université des Sciences, des Techniques et des Technologies de Bamako, BP: 1805, Bamako, Mali
| | - Frank Wieringa
- Alimentation, Nutrition, Santé (E6), UMR95 QualiSud, University of Montpellier, Avignon Université, CIRAD, Institut Agro, Institut de Recherche pour le Développement (IRD), Université de La Reunion, Montpellier, France
| | - Elizabeth P Ryan
- Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO 80523, USA.
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Hussain MM, Bibi I, Niazi NK, Nawaz MF, Rinklebe J. Impact of organic and inorganic amendments on arsenic accumulation by rice genotypes under paddy soil conditions: A pilot-scale investigation to assess health risk. JOURNAL OF HAZARDOUS MATERIALS 2021; 420:126620. [PMID: 34329086 DOI: 10.1016/j.jhazmat.2021.126620] [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: 02/28/2021] [Revised: 06/27/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
In this study, we investigated the distinct effects of organic (farmyard manure (FYM), cow dung (CD), biogas slurry (BGS), sugarcane bagasse (SCB)) and inorganic (gypsum and lignite) amendments on arsenic (As) accumulation by two rice genotypes, Kainat (fine) and Basmati-385 (coarse), under As stress. Results showed that shoot As concentration was ~2-time greater in Kainat compared to Basmati-385 (3.1-28 vs. 1.7-16 mg kg-1 DW, respectively), with the minimum shoot As content observed with CD and SCB. In contrast to gypsum and lignite, grain As concentration was significantly reduced with CD and SCB for Kainat (0.29 and 0.24 mg kg-1 DW) and Basmati-385 (0.04 and 0.09 mg kg-1 DW). Data indicated that the CD and SCB also improved chlorophyll a and b contents, reduced lipid peroxidation and hydrogen peroxide production in both rice genotypes. Significantly, the CD and SCB decreased grain As concentration below the FAO safe As limit in rice grain (0.2 mg kg-1 DW), especially in coarse rice genotype (Basmati-385), resulting in negligible As-induced human health risk. This study highlights the significance of amendments and rice genotypes controlling As accumulation in rice grain, which should be considered prior to As remediation program of paddy soils for limiting exposure of humans to As via rice grain.
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Affiliation(s)
- Muhammad Mahroz Hussain
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Irshad Bibi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan.
| | - Muhammad Farrakh Nawaz
- Department of Forestry & Range Management, Faculty of Agriculture, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Laboratory of Soil, and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, South Korea; International Research Centre of Nanotechnology for Himalayan Sustainability (IRCNHS), Shoolini University, Solan 173212, Himachal Pradesh, India
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15
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Translocation of Soil Arsenic towards Accumulation in Rice: Magnitude of Water Management to Minimize Health Risk. WATER 2021. [DOI: 10.3390/w13202816] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Globally, the risk of arsenic (As) contamination in soil and rice is well documented across the globe. In Bangladesh, drinking water and rice are two major exposure pathways of As to humans. Therefore, the efficiency of recent technologies to reduce rice As and associated human health risks still need to be deeply investigated. In this direction, a pot experiment was performed to investigate the impact of soil As and agronomic irrigation management on rice (cv. BRRI dhan28) growth, yield, As accumulation, and finally, health risks to humans from consuming rice. Treatment combinations were made with three levels of As (0, 20, and 40 mg kg−1) having two irrigation procedures, including alternate wetting and drying (AWD) and traditional continuous flooding (CF). According to the findings, As pollution in the soil lowered the yield contributing features and rice yield, including panicle length, filled grains per panicle, sterile grains per panicle, 1000-grain weight, grain yield, and straw yield. AWD water management significantly improved the growth performance and productivity of rice. Grain yield was increased by 13% in AWD compared to CF. Rice grain and straw As concentrations were increased to 0.56 mg kg−1 and 15.10 mg kg−1, respectively, in soil with 40 mg kg−1 As and CF water management. AWD treatment significantly reduced grain and straw As contents by 16% and 28%, respectively. Increased grain, straw, and total As uptake was noticed with higher soil As concentrations. The study also found that rising soil As raised non-carcinogenic risks (HQ > 1) and carcinogenic risks (CR > 1.010–4) while AWD lowered health risks compared to CF. Thus, rice farming using AWD irrigation could be a viable and long-term solution for reducing As contamination in rice and associated human health hazards.
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16
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Imran M, Ashraf M, Awan AR. Growth, yield and arsenic accumulation by wheat grown in a pressmud amended salt-affected soil irrigated with arsenic contaminated water. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 224:112692. [PMID: 34438270 DOI: 10.1016/j.ecoenv.2021.112692] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 08/16/2021] [Accepted: 08/19/2021] [Indexed: 05/26/2023]
Abstract
The study assessed the influence of pressmud (PM) application on soil available phosphorus (P) content, growth, yield, and arsenic (As) accumulation in wheat grains on a salt-affected soil receiving irrigation of As-contaminated water. Wheat seeds (cv. Faisalabad-2008) were sown in pots containing saline soil (EC 11.72 dS m-1; pH 8.07; SAR 31.3 mmol1/2 L-1/2) amended with PM (0, 2.5, 10 and 15 g kg-1) and irrigated with As-contaminated water (0, 25 and 100 µg L-1). The pot experiments had two sets, one was harvested after 30-days of germination while the other at crop maturity. Pressmud application at 2.5, 10 and 15 g kg-1 improved biomass of 30-days old wheat seedlings by 44%, 86% and 90%, respectively compared to unamended soil. Irrigation with As-contaminated waters did not affect seedling biomass or grain yield of wheat. Plant height, fertile tillers, straw biomass and grain yield increased from 57-62 cm, 3-5 no. plant-1, 2.93-5.31 g plant-1 and 3.93-7.11 g plant-1, respectively by 15 g PM kg-1 soil. Moreover, PM application resulted in an 8-fold increase in soil available P content, which resulted in higher grain P uptake. Irrigation with water of 25 and 100 µg As L-1 increased soil available P by 7.6% and 11%, respectively, but its influence on the grain P concentration was non-significant. Pressmud application in combination with As-contaminated water increased accumulation of As in grains. By applying water of 25 and 100 µg L-1 As, accumulation of As in wheat grains increased from 3.12-42.4 and 49.58-91.85 µg kg-1, respectively compared with normal water. However, these concentrations of As in wheat grains were still below the permissible limit of 430 µg kg-1 prescribed for agronomic crops. In conclusion, PM is very effective in improving wheat productivity on salt-affected soils but it can aggravate As accumulation in wheat grains if applied in combination with As polluted water.
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Affiliation(s)
- Muhammad Imran
- Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology, Faisalabad 38000, Pakistan.
| | - Muhammad Ashraf
- Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology, Faisalabad 38000, Pakistan
| | - Abdul Rasul Awan
- Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology, Faisalabad 38000, Pakistan
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17
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Determination of chemical elements in rice from Singapore markets: Distribution, estimated intake and differentiation of rice varieties. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2021.103969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Mawia AM, Hui S, Zhou L, Li H, Tabassum J, Lai C, Wang J, Shao G, Wei X, Tang S, Luo J, Hu S, Hu P. Inorganic arsenic toxicity and alleviation strategies in rice. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124751. [PMID: 33418521 DOI: 10.1016/j.jhazmat.2020.124751] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 11/29/2020] [Accepted: 11/30/2020] [Indexed: 05/28/2023]
Abstract
Direct or indirect exposure to inorganic arsenic (iAs) in the forms of AsIII (arsenite) and AsV (arsenate) through consumption of As-contaminated food materials and drinking water leads to arsenic poisoning. Rice (Oryza sativa L.) plant potentially accumulates a high amount of iAs from paddy fields than any other cereal crops. This makes it to be a major source of iAs especially among the population that uses it as their dominant source of diet. The accumulation of As in human bodies poses a serious global health risk to the human population. Various conventional methods have been applied to reduce the arsenic accumulation in rice plant. However, the success rate of these techniques is low. Therefore, the development of efficient and effective methods aimed at lowering iAs toxicity is a very crucial public concern. With the current advancement in technology, new strategies aimed at addressing this concern are being developed and utilized in various parts of the world. In this review, we discuss the recent advances in the management of iAs in rice plants emphasizing the use of nanotechnology and biotechnology approaches. Also, the prospects and challenges facing these approaches are described.
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Affiliation(s)
- Amos Musyoki Mawia
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Suozhen Hui
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Liang Zhou
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Huijuan Li
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Javaria Tabassum
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Changkai Lai
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Jingxin Wang
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Gaoneng Shao
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Xiangjin Wei
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Shaoqing Tang
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China
| | - Ju Luo
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China.
| | - Shikai Hu
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China.
| | - Peisong Hu
- State Key Laboratory of Rice Biology, China National Center for Rice Improvement, China National Rice Research Institute, Hangzhou 310006, China.
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Upadhyay MK, Majumdar A, Barla A, Bose S, Srivastava S. Thiourea supplementation mediated reduction of grain arsenic in rice (Oryza sativa L.) cultivars: A two year field study. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124368. [PMID: 33153787 DOI: 10.1016/j.jhazmat.2020.124368] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/28/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
The present study delineates the interactions of arsenic (As), a carcinogenic metalloid, and thiourea (TU), a non-physiological reactive oxygen species (ROS) scavenger, in rice plants grown in As contaminated fields in West Bengal, India. The study was performed for four consecutive seasons (two boro and two aman) in 2016 and 2017 with two local rice cultivars; Gosai and Satabdi (IET-4786) in a control and two As contaminated experimental fields. Thiourea (0.05% wt/vol) treatment was given in the form of seed priming and foliar spray. Thiourea significantly improved growth and yield of rice plants and reduced As concentration in root, shoot, husk and grains in both cultivars and fields. The reduction in As concentration ranged from 10.3% to 27.5% in four seasons in different fields. The average (four seasons) increase in yield was recorded about ~8.1% and ~11.5% in control, ~20.2% and ~18.6% in experimental field 1, and ~16.2% and ~24.1% in experimental field 2, for gosai and satabdi, respectively. Mean hazard quotient (HQ) and incremental lifetime cancer risk (ILCR) values of As reduced upon TU supplementation for both cultivars as compared to that of non-TU plants. Hence, TU can be effectively used to cultivate rice safely in As contaminated fields.
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Affiliation(s)
- Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, West Bengal, India
| | - Anil Barla
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, West Bengal, India
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur 741246, West Bengal, India
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India.
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Tang X, Zou L, Su S, Lu Y, Zhai W, Manzoor M, Liao Y, Nie J, Shi J, Ma LQ, Xu J. Long-Term Manure Application Changes Bacterial Communities in Rice Rhizosphere and Arsenic Speciation in Rice Grains. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:1555-1565. [PMID: 33449628 DOI: 10.1021/acs.est.0c03924] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Bioavailability and speciation of arsenic (As) are impacted by fertilization and bacteria in the rice rhizosphere. In this study, we investigated the effects of long-term manure application on As bioavailability, microbial community structure, and functional genes in a rice paddy field. The results showed that manure application did not affect total As in the soil but increased soluble As forms by 19%, increasing arsenite (As(III)) accumulation in rice grains and roots by 34 and 64% compared to a control. A real-time quantitative polymerase chain reaction (qPCR) and high-throughput sequencing analysis demonstrated that manure application increased the relative abundance of Rhizobium, Burkholderia, Sphingobium, and Sphingomonas containing arsenate reductase genes (arsC) in the rhizosphere soil, consistent with the 529% increase in arsC, which may have promoted arsenate (As(V)) reduction and increased As availability in pore water. In addition, manure application significantly altered the iron (Fe)-plaque microbial community structure and diversity. The microbes, particularly, Bradyrhizobium, Burkholderia, and Ralstonia, were mostly associated with As, Fe, and sulfur (S) cycles. This result was consistent with changes in the functional genes related to As, Fe, and S transformation. Although manure application promoted As(V) reduction (arsC) in Fe-plaque by 682%, it inhibited Fe and S reduction by decreasing FeIII reduction bacteria (Geobacteraceae) and the sulfate-reducing gene (dsrA) abundance. Further, manure application changed the composition of the microbial community that contained the arsC gene. In short, caution needs to be excised even in the soil with a low As concentration as manure application increased As(III) accumulation in rice grains.
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Affiliation(s)
- Xianjin Tang
- MOE Key Lab of Environmental Remediation and Ecosystem Health, and 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, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lina Zou
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Shiming Su
- Key Laboratory of Agro-Environment, Ministry of Agriculture, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yanhong Lu
- Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Weiwei Zhai
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Maria Manzoor
- MOE Key Lab of Environmental Remediation and Ecosystem Health, and Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yulin Liao
- Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Jun Nie
- Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Jiyan Shi
- MOE Key Lab of Environmental Remediation and Ecosystem Health, and Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Lena Q Ma
- MOE Key Lab of Environmental Remediation and Ecosystem Health, and 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, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jianming Xu
- MOE Key Lab of Environmental Remediation and Ecosystem Health, and 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, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
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21
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Majumder S, Banik P. Inhibition of arsenic transport from soil to rice grain with a sustained field-scale aerobic rice cultural practice. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 279:111620. [PMID: 33221047 DOI: 10.1016/j.jenvman.2020.111620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 10/26/2020] [Accepted: 11/02/2020] [Indexed: 06/11/2023]
Abstract
A field-scale investigation has been carried out to assess the uptake of Arsenic (As) in rice under aerobic practice. Two consecutive field experiments have been designed considering the rice cultivation system's variation in the comparison between aerobic and flooded practices during monsoon and post-monsoon seasons using the cultivars of Swarna masuri and Satabdi, respectively. Notwithstanding the impact of the rice cultivation systems, the implications of amendments like iron, silicon, and organic matter were also taken into account on As uptake by rice. We hypothesized that the application of amendments in combination with sustained aerobic practice would reduce the subsequent accumulation of As in rice as compared to flooded practice (control). However, regardless of the cultivation systems, the grain productivity of rice delivered a non-significant impact. Results revealed that the plant available As content in soil under aerobic practice was averaged 22% and 26% lower than flooded, during monsoon and post-monsoon seasons, respectively. Aerobic treatment significantly reduced accumulation of As in root and straw as compared to flooded (p < 0.05), which in accordance corresponded to lower translocation efficiency of As from root to straw. For Swarna masuri, the bioaccumulation of As in polished rice, husk and bran was reduced by 33%, 48% and 47%, respectively, under aerobic practice. On the contrary, Satabdi exhibited a reduction in As accumulation with 54% in polished rice, followed by 31% and 38% in husk and bran, respectively. The inhibition of As uptake in rice was notably impacted by iron, silicon, and organic matter. Following the treatments of rice cultivation system and amendment, the bioaccumulation of As in rice plant parts was arranged in the order of root > straw > grain > husk > bran > polished rice in both the cultivars. The health risk assessment was also considered to estimate the potential human health risk measuring the estimated dietary intake and the health hazard quotient. The results highlighted that the consumption of rice grown in aerobic practice was ensured to provide non-carcinogenic health risk as compared to rice grown in flooded practice. In the overall attempt, the present investigation corroborates the insinuation of specific management practices in quantifying the reduction of As bioavailability in rice with subject to the concern of reducing human health risk.
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Affiliation(s)
- Supriya Majumder
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata, 700108, India
| | - Pabitra Banik
- Agricultural and Ecological Research Unit, Indian Statistical Institute, Kolkata, 700108, India.
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Hossain M, Mestrot A, Norton GJ, Deacon C, Islam MR, Meharg AA. Arsenic dynamics in paddy soil under traditional manuring practices in Bangladesh. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115821. [PMID: 33158623 DOI: 10.1016/j.envpol.2020.115821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 09/03/2020] [Accepted: 10/11/2020] [Indexed: 06/11/2023]
Abstract
Fertilization with organic matter (farm yard manure and/or rice straw) is thought to enhance arsenic (As) mobilization into soil porewaters, with subsequent As assimilation by rice roots leading to enhanced translocation to the grain. Here, interlinked experiments (field manuring and soil batch culture) were conducted to find the effect of organic matter at a field application rate practiced in Bangladesh (5 t/ha) on As mobilization in soil for paddies impacted by As contaminated groundwater irrigation, a widespread phenomenon in Bangladesh where the experiments were conducted. Total As concentration in a paddy soil (Sonargaon) ranged from 21.9 to 8.1 mg/kg down the soil profile and strongly correlated with TOC content. Arsenic, Fe, Mn, and DOC release into soil solution, and As speciation, are intimately linked to OM amendment, soil depth and temporal variation. Organic matter amendments lead to increased mobilization of As into both soil porewaters and standing surface waters. The As speciation in the porewater was dominated by inorganic As (Asi) (arsenite and arsenate), with traces amounts of methylated species (DMAV and MMAV) only being found with OM amendment. It was noted in field trials that OM fertilization greatly enhanced As mobility to surface waters, which may have major implications for the fate of As in paddy agronomic ecosystems.
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Affiliation(s)
- Mahmud Hossain
- School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, UK; Department of Soil Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh.
| | - Adrien Mestrot
- Institute of Geography, University of Bern, Hallerstrasse 12, 3012, Bern, Switzerland
| | - Gareth J Norton
- School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, UK
| | - Claire Deacon
- School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, UK
| | - M Rafiqul Islam
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Andrew A Meharg
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, 19 Chlorine Gardens, BT9 5DL, UK
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Otero XL, Atiaga O, Estrella R, Tierra W, Ruales J, Zayas L, Souza V, Ferreira TO, Nóbrega GN, Oliveira DP, Queiroz HM, Nunes LM. Geographical variations in arsenic contents in rice plants from Latin America and the Iberian Peninsula in relation to soil conditions. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2020; 42:3351-3372. [PMID: 32350805 DOI: 10.1007/s10653-020-00581-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Arsenic is a ubiquitous, toxic element that is efficiently accumulated by rice plants. This study assessed the spatial variability in the total As (tAs) contents and organic and inorganic forms in different types of rice, plant parts (husk, stem, leaves and phytoliths) and residues. Samples were collected in different countries in Latin America (Ecuador, Brazil and Peru) and the Iberian Peninsula (Spain and Portugal). The tAs content in commercial polished rice from the Latin American countries was similar (0.130-0.166 mg kg-1) and significantly lower than in the rice from the Iberian countries (0.191 ± 0.066 mg kg-1), and together, the tAs concentration in brown rice (236 ± 0.093 mg kg-1) was significantly higher than in polished and parboiled rice. The inorganic As (iAs) content in rice was similar in both geographical regions, and the aforementioned difference was attributed to dimethylarsinic acid (DMA). The relative abundance of organic species increased as the tAs content in rice grain increased. A meta-analysis of our and previously reported data confirmed the negative correlation between iAs/tAs and tAs. At low tAs concentrations, inorganic forms are dominant, while at higher values (tAs > 0.300 mg kg-1) the concentration of organic As increases substantially and DMA becomes the dominant form in rice grain. On the contrary, inorganic arsenic was always the dominant form, mainly as arsenate [As(V)], in leaves and stems. The presence in soils of high concentrations of amorphous Fe and Al oxides and hydroxides, which are capable of strongly adsorbing oxyanions (i.e. arsenate), was associated with low concentrations of As in rice plants. In addition, the presence of high concentrations of As(V) in stems and leaves, low concentration of As in phytoliths, and the As associated with organic matter in stems and husk, together suggest that rice plants take up more As(V) than As(III).
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Affiliation(s)
- X L Otero
- Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, CRETUS Institute, Universidade de Santiago de Compostela, Campus Sur, 15782, Santiago de Compostela, Spain.
| | - O Atiaga
- Departamento de Edafoloxía e Química Agrícola, Facultade de Bioloxía, CRETUS Institute, Universidade de Santiago de Compostela, Campus Sur, 15782, Santiago de Compostela, Spain
- Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas ESPE, Av. General Rumiñahui s/n, P.O. Box 171-5-231B, Sangolquí, Ecuador
| | - R Estrella
- Departamento de Ciencias de la Tierra y la Construcción, Universidad de las Fuerzas Armadas ESPE, Av. General Rumiñahui s/n, P.O. Box 171-5-231B, Sangolquí, Ecuador
| | - W Tierra
- Departamento de Ciencia de los Alimentos y Biotecnología, Escuela Politécnica Nacional, Quito, Ecuador
| | - J Ruales
- Departamento de Ciencia de los Alimentos y Biotecnología, Escuela Politécnica Nacional, Quito, Ecuador
| | - L Zayas
- Departamento de Ciência do Solo, Escola Superior de Agronomia Luiz de Queiroz (ESALQ), Universidade de São Paulo, Piracicaba, Brazil
| | - V Souza
- Departamento de Agronomia, Área de Solo, Universidade Federal Rural de Pernambuco, Recife, Brazil
| | - T O Ferreira
- Departamento de Ciência do Solo, Escola Superior de Agronomia Luiz de Queiroz (ESALQ), Universidade de São Paulo, Piracicaba, Brazil
| | - G N Nóbrega
- Departamento de Geoquímica, Universidade Federal Fluminense, Outeiro de São João Batista s/nº, Campus do Valonguinho, Centro, Niterói, Rio de Janeiro, 24020-14, Brazil
| | - D P Oliveira
- Graduate Course in Ecology and Natural Resources, Department of Biology, Federal University of Ceará - UFC, Fortaleza, CE, Brazil
| | - H M Queiroz
- Departamento de Ciência do Solo, Escola Superior de Agronomia Luiz de Queiroz (ESALQ), Universidade de São Paulo, Piracicaba, Brazil
| | - L M Nunes
- Faculdade de Ciências e Tecnologia, Universidade do Algarve, CERIS, Campus de Gambelas, Faro, Portugal
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He S, Wang X, Zheng C, Yan L, Li L, Huang R, Wang H. Enhanced arsenic depletion by rice plant from flooded paddy soil with soluble organic fertilizer application. CHEMOSPHERE 2020; 252:126521. [PMID: 32203780 DOI: 10.1016/j.chemosphere.2020.126521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/10/2020] [Accepted: 03/15/2020] [Indexed: 06/10/2023]
Abstract
In this study, the promoting effect of soluble organic fertilizer (SOF) on arsenic (As) release and depletion by rice plant in flooded paddy soil was investigated. The increased soil DOC with SOF incorporation displayed a significantly positive correlation with As in soil solution (r = 0.415, p < 0.01). Porewater As with SOF addition was higher than control from 77 days. Soil As depletion by rice plant was enhanced by SOF application, with porewater As in SM + Rice + SOF being 49% lower than that in SM + Rice at harvest. Compared to SM + Rice, the averaged soil profile of As measured by diffusive gradients in thin films (DGT) declined by 4% in tillering stage and by 16% in grain-filling stage in SM + Rice + SOF. As a result, As accumulation in each rice plant was increased by 35% at the presence of SOF, with 92% of total As retained in roots. With SOF amendment, 8% of total As in the tested soil was removed by harvesting rice biomass including root. In this way, an estimated 184 mg As m-2 can be depleted from paddy soil at the end of one rice-growing season. These results revealed the potential of SOF in enhancing soil As depletion by rice plant under flooded condition, providing a cost-effective pathway for efficient cleanup of bioavailable As from rice paddies.
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Affiliation(s)
- Sixue He
- Key Laboratory of Environmental Heavy-Metal Contamination and Ecological Remediation, College of Resources and Environmental Science, Hunan Normal University, Changsha, 410081, China
| | - Xin Wang
- Key Laboratory of Environmental Heavy-Metal Contamination and Ecological Remediation, College of Resources and Environmental Science, Hunan Normal University, Changsha, 410081, China.
| | - Chujing Zheng
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Lu Yan
- Key Laboratory of Environmental Heavy-Metal Contamination and Ecological Remediation, College of Resources and Environmental Science, Hunan Normal University, Changsha, 410081, China
| | - Liang Li
- Key Laboratory of Environmental Heavy-Metal Contamination and Ecological Remediation, College of Resources and Environmental Science, Hunan Normal University, Changsha, 410081, China
| | - Rui Huang
- Key Laboratory of Environmental Heavy-Metal Contamination and Ecological Remediation, College of Resources and Environmental Science, Hunan Normal University, Changsha, 410081, China
| | - Hao Wang
- Key Laboratory of Environmental Heavy-Metal Contamination and Ecological Remediation, College of Resources and Environmental Science, Hunan Normal University, Changsha, 410081, China
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Menon M, Sarkar B, Hufton J, Reynolds C, Reina SV, Young S. Do arsenic levels in rice pose a health risk to the UK population? ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 197:110601. [PMID: 32302858 DOI: 10.1016/j.ecoenv.2020.110601] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2020] [Revised: 04/01/2020] [Accepted: 04/05/2020] [Indexed: 06/11/2023]
Abstract
Consumption of rice and rice products can be a significant exposure pathway to inorganic arsenic (iAs), which is a group 1 carcinogen to humans. The UK follows the current European Commission regulations so that iAs concentrations must be < 0.20 mg kg-1 in white (polished) rice and <0.25 mg kg-1 in brown (unpolished) rice. However, iAs concentration in rice used for infant food production or direct consumption has been set at a maximum of 0.1 mg kg-1. In this context, this study aimed to evaluate iAs concentrations in different types of rice sold in the UK and to quantify the health risks to the UK population. Here, we evaluated 55 different types of rice purchased from a range of retail outlets. First, we analysed all rice types for total As (tAs) concentration from which 42 rice samples with tAs > 0.1 mg kg-1 were selected for As speciation using HPLC-ICP-MS. Based on the average concentration of iAs of our samples, we calculated values for the Lifetime Cancer Risk (LCR), Target Hazard Quotient (THQ) and Margin of Exposure (MoE). We found a statistically significant difference between organically and non-organically grown rice. We also found that brown rice contained a significantly higher concentration of iAs compared to white or wild rice. Notably, 28 rice samples exceeded the iAs maximum limit stipulated by the EU (0.1 mg kg-1) with an average iAs concentration of 0.13 mg kg-1; therefore consumption of these rice types could be riskier for infants than adults. Based on the MoE, it was found that infants up to 1 year must be restricted to a maximum of 20 g per day for the 28 rice types to avoid carcinogenic risks. We believe that consumers could be better informed whether the marketed product is fit for infants and young children, via appropriate product labelling containing information about iAs concentration.
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Affiliation(s)
- Manoj Menon
- Department of Geography, University of Sheffield, Sheffield, S102TN, United Kingdom.
| | - Binoy Sarkar
- Department of Animal and Plant Sciences, University of Sheffield, Sheffield, S102TN, United Kingdom
| | - Joseph Hufton
- Department of Geography, University of Sheffield, Sheffield, S102TN, United Kingdom
| | - Christian Reynolds
- Department of Geography, University of Sheffield, Sheffield, S102TN, United Kingdom
| | - Saul Vazquez Reina
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Leicestershire, LE12 5RF, United Kingdom
| | - Scott Young
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Leicestershire, LE12 5RF, United Kingdom
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Murphy T, Irvine K, Phan K, Lean D, Yumvihoze E, Wilson K. Interactions of Dimethylarsinic Acid, Total Arsenic and Zinc Affecting Rice Crop Management and Human Health in Cambodia. J Health Pollut 2020; 10:200612. [PMID: 32509413 PMCID: PMC7269330 DOI: 10.5696/2156-9614-10.26.200612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 04/21/2020] [Indexed: 04/18/2023]
Abstract
BACKGROUND In parts of Cambodia and in many other parts of the world, irrigation of rice with groundwater results in arsenic (As) accumulation in soil and rice, leading to health concerns associated with rice consumption. At times, some As is present as relatively nontoxic, non-regulated, dimethylarsinic acid (DMA). Low levels of zinc (Zn) have been found in rice from Bangladesh, Cambodia, and China where As levels in rice are high. Furthermore, there have been claims that Zn deficiency is responsible for stunting the growth of children in Cambodia and elsewhere, however in rural Asia, rice is the major source of Zn. Current data are inadequate for both Zn and DMA in Cambodian rice. OBJECTIVES The present study aimed to provide a preliminary evaluation of the relationship between the content of Zn and DMA in rice grain in Preak Russey, an area with elevated levels of As in groundwater and to improve the management of Zn deficiency in rice. METHODS Rice agriculture was evaluated along the Mekong River in Cambodia. Analyses for metals, total As, and As species in rice and water were conducted by inductively coupled plasma mass spectrometry. Analysis of total Zn and As in soils and total Zn in rice were analyzed using X-ray fluorescence (XRF) spectrometry. RESULTS Rice in Preak Russey had Zn concentrations less than a third the level recommended by the United Nations World Food Programme. There was a significant (p < 0.05) negative correlation between the Zn content of rice and DMA in rice with the lowest Zn and highest DMA levels occurring near irrigation wells, the source of As. CONCLUSIONS The highest levels of DMA in rice were associated with Zn deficiency in rice. COMPETING INTERESTS The authors declare no competing financial interests.
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Affiliation(s)
- Tom Murphy
- International University, Phnom Penh, Cambodia
| | | | | | - David Lean
- Lean Environmental, Apsley, Ontario, Canada
| | | | - Ken Wilson
- Texas State University, San Marcos, Texas, USA
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Arsenic Uptake and Accumulation Mechanisms in Rice Species. PLANTS 2020; 9:plants9020129. [PMID: 31972985 PMCID: PMC7076356 DOI: 10.3390/plants9020129] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/16/2020] [Accepted: 01/20/2020] [Indexed: 12/15/2022]
Abstract
Rice consumption is a source of arsenic (As) exposure, which poses serious health risks. In this study, the accumulation of As in rice was studied. Research shows that As accumulation in rice in Taiwan and Bangladesh is higher than that in other countries. In addition, the critical factors influencing the uptake of As into rice crops are defined. Furthermore, determining the feasibility of using effective ways to reduce the accumulation of As in rice was studied. AsV and AsIII are transported to the root through phosphate transporters and nodulin 26-like intrinsic channels. The silicic acid transporter may have a vital role in the entry of methylated As, dimethylarsinic acid (DMA) and monomethylarsonic acid (MMA), into the root. Amongst As species, DMA(V) is particularly mobile in plants and can easily transfer from root to shoot. The OsPTR7 gene has a key role in moving DMA in the xylem or phloem. Soil properties can affect the uptake of As by plants. An increase in organic matter and in the concentrations of sulphur, iron, and manganese reduces the uptake of As by plants. Amongst the agronomic strategies in diminishing the uptake and accumulation of As in rice, using microalgae and bacteria is the most efficient.
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28
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Gao B, Zhang X, Tian C, Zhang X, Liu J. Effects of amendments and aided phytostabilization of an energy crop on the metal availability and leaching in mine tailings using a pot test. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:2745-2759. [PMID: 31836984 DOI: 10.1007/s11356-019-07171-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] [Received: 03/25/2019] [Accepted: 11/25/2019] [Indexed: 05/04/2023]
Abstract
A complete orthogonal experiment using a pot test is conducted to investigate the effects of four amendments (biochar, peat, manure, and non-contaminated soil (NCS)) on the metal availability, mobility, and phytostabilization potential of an energy crop, king grass (Pennisetum purpureum × P. thyphoideum), in Pb/Zn mine tailings. The addition of amendments significantly increased the pH and fertility of the tailings, while significantly decreasing the heavy metal available contents in the tailings. The available Cd, Pb, Zn, and As concentrations in the tailings in the treatment amended with biochar+NCS+peat+manure were 51.00%, 36.62%, 50.57%, and 75.88%, respectively, lower than those in the treatment control. The king grass survived in the tailings without amendments, while amendments made the plant grow well or better in the tailings than in NCS. The addition of amendments significantly reduced the content of heavy metals and bioaccumulation factor (BCF) in the plant root but increased the translocation factor (TF) of Cd, Zn, and As and had little effect on the TF of Pb. The TF for heavy metals in plant were lower than one for all of the treatments. During a leaching period of 30 days, the pH of the leachate declined slowly and then maintained at 6.0~6.6. The addition of the amendments significantly reduced the metal concentrations of the leachates, and the highest declines were 50.46%, 20.04%, 41.58%, and 47.04% for Cd, Pb, Zn, and As, respectively. Biochar had a higher immobilization capacity for Cd, Pb, Zn, and As than manure, peat, and NCS. King grass could be used to aid phytostabilization for Cd- and Pb-polluted tailings, and biochar-rich amendments were effective for the in situ immobilization of metals. Further field monitoring is necessary to demonstrate the effectiveness of king grass and amendments under the climatic conditions of China.
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Affiliation(s)
- Bo Gao
- College of Environmental Science and Engineering, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China
- Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Xingfeng Zhang
- College of Environmental Science and Engineering, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China.
- Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin, 541004, China.
| | - Chao Tian
- College of Environmental Science and Engineering, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China
- Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin, 541004, China
| | - Xuehong Zhang
- College of Environmental Science and Engineering, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China
- Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin, 541004, China
| | - Jie Liu
- College of Environmental Science and Engineering, Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China
- Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area, Guilin University of Technology, Guilin, 541004, China
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Mahmood-Ul-Hassan M, Yousra M, Ahmad R, Sarwar S. Arsenic Contamination in Rice Grown Under Anaerobic Condition in Arid Agriculture: Assessment and Remediation. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2019; 103:865-870. [PMID: 31637447 DOI: 10.1007/s00128-019-02730-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 10/03/2019] [Indexed: 06/10/2023]
Abstract
Arsenic (As) concentrations in fine (2) and coarse (3) rice varieties belonging to Hafizabad, Gujranwala and Sheikhupura districts was assessed initially by means of field survey, followed by pot experiments. Bulk soil samples collected from same rice districts (Hafizabad and Gujtanwala) were spiked with As (0, 10, 20 mg kg-1) and each was amended with iron sulphate (0, 25, 50 g kg-1) to investigate their effect on plant growth and uptake under anaerobic conditions. Survey results revealed that mainly fine long grain (Super Basmati and KSK 515) and coarse long grain (Basmati 386 and Kainat) rice varieties were grown in the area. Overall, 16% rice grain samples were above the recommended permissible limit (RPL) of 300 mg kg-1. Among varieties, 24% grain samples of coarse and 12% of fine varieties had As concentration above the RPL. Results of pot experiments showed a significant decrease in straw and grain yield and increase in As concentration with increasing rates of As spiking. Paddy yield increased significantly when As spiked soils were amended with iron sulfate; and opposite was true for As concentration.
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Affiliation(s)
| | - Munazza Yousra
- Land Resources Research Institute, National Agricultural Research Center, Islamabad, 45500, Pakistan
| | - Rizwan Ahmad
- Land Resources Research Institute, National Agricultural Research Center, Islamabad, 45500, Pakistan
| | - Sair Sarwar
- Land Resources Research Institute, National Agricultural Research Center, Islamabad, 45500, Pakistan
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Majumdar A, Upadhyay MK, Kumar JS, Barla A, Srivastava S, Jaiswal MK, Bose S. Ultra-structure alteration via enhanced silicon uptake in arsenic stressed rice cultivars under intermittent irrigation practices in Bengal delta basin. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 180:770-779. [PMID: 31154202 DOI: 10.1016/j.ecoenv.2019.05.028] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/02/2019] [Accepted: 05/10/2019] [Indexed: 06/09/2023]
Abstract
The study implements a periodical intermittent water cycle during rice cultivation providing insight potential in minimizing soil bio-available arsenic. Soil As concentrations were 34 ± 0.49 and 72.03 ± 0.54 mg kg-1 As respectively in two selected fields with rice cultivars gosai and satabdi, in comparison to 42.26 ± 0.37 and 83.69 ± 0.48 mg kg-1 in continuously flooded field soil, determined through ICP-MS. The study found higher translocation of silicon from soil to rice plant parts under intermittent irrigation having pH range of 7.6-9.4 and greater availability of soil organic content that in turn release more labile silicon from soil to aqueous phase for plant accumulation. This increased uptake of silicon strengthens rice shoots, nodes and leaf xylem-phloem integrity compared to conventional continuously flooded rice cultivation approach, suppressing the arsenic translocation, as observed under FE-SEM real-time imaging. Fresh plants were analysed for bioaccumulation and translocation factors of arsenic and silicon to justify the enhanced silicon uptake under proposed practice. Plant stress regulator enzymes viz. malondialdehyde (MDA), total protein, superoxide dismutase (SOD), guaiacol peroxidase (GPX) and ascorbate peroxidase (APX) from both conditions and found to be better in intermittent method over conventional practice with higher productivity.
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Affiliation(s)
- Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Munish Kumar Upadhyay
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, India-221005
| | - Jisha Suresh Kumar
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Anil Barla
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Sudhakar Srivastava
- Plant Stress Biology Laboratory, Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, India-221005
| | - Manoj Kumar Jaiswal
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal, India-741246.
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Leksungnoen P, Wisawapipat W, Ketrot D, Aramrak S, Nookabkaew S, Rangkadilok N, Satayavivad J. Biochar and ash derived from silicon-rich rice husk decrease inorganic arsenic species in rice grain. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 684:360-370. [PMID: 31153082 DOI: 10.1016/j.scitotenv.2019.05.247] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 05/10/2019] [Accepted: 05/17/2019] [Indexed: 06/09/2023]
Abstract
Exposure to arsenic (As) through rice consumption potentially threatens millions of people worldwide. Understanding is still lacking the recycling impacts of rice residues on As phytoavailability in paddy soils and is of indisputable importance in providing a sustainable and effective measure to decrease As accumulation in rice grain. Herein, we examined the effects of rice husk biochar (RHB) and rice husk ash (RHA) on As grain speciation, and As dynamics in the soil porewater and solid-phase fractions. The results corroborated that both the RHB and RHA (0.64% w/w) treatments significantly (p < 0.05) decreased inorganic As accumulation in rice grain to 0.27-0.29 mg kg-1, which was below the maximum inorganic As level in husked rice (0.35 mg kg-1) established by the Codex. The residual phase (F6 = 90% of total soil As) as quantified by the sequential extraction was the dominant As pool; the fractions were subsequently transformed into several As pools associated with soluble and exchangeable (F1), organically bound (F2), Mn oxides (F3), poorly crystalline (F4) and crystalline (F5) Fe oxides during the rice growing periods. The Si-rich amendments enhanced the residual phase formation upon soil flooding, which decreased the As availability to rice plant. The inorganic grain-As concentrations were well explained by the soil-extractable As concentrations in the F2, F3, F5, and F6 fractions. The pore-water analysis indicated that Mn oxides were important sources and sinks for As released to the soil solution. Our findings shed light on the beneficial role of RHB and RHA in alleviating inorganic As uptake in paddy rice.
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Affiliation(s)
- Parapond Leksungnoen
- Department of Soil Science, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand
| | - Worachart Wisawapipat
- Department of Soil Science, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.
| | - Daojarus Ketrot
- Department of Soil Science, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand
| | - Surachet Aramrak
- Department of Soil Science, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand
| | - Sumontha Nookabkaew
- Laboratory of Pharmacology, Chulabhorn Research Institute (CRI), Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
| | - Nuchanart Rangkadilok
- Laboratory of Pharmacology, Chulabhorn Research Institute (CRI), Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), Bangkok 10400, Thailand
| | - Jutamaad Satayavivad
- Laboratory of Pharmacology, Chulabhorn Research Institute (CRI), Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand; Center of Excellence on Environmental Health and Toxicology (EHT), Bangkok 10400, Thailand; Environmental Toxicology Program, Chulabhorn Graduate Institute (CGI), Kamphaeng Phet 6, Laksi, Bangkok 10210, Thailand
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Norton GJ, Travis AJ, Talukdar P, Hossain M, Islam MR, Douglas A, Price AH. Genetic loci regulating arsenic content in rice grains when grown flooded or under alternative wetting and drying irrigation. RICE (NEW YORK, N.Y.) 2019; 12:54. [PMID: 31332547 PMCID: PMC6646650 DOI: 10.1186/s12284-019-0307-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 06/27/2019] [Indexed: 05/21/2023]
Abstract
BACKGROUND Rice is a global staple crop, being the main calorific component of many people living subsistence livelihoods. Rice can accumulate toxic elements such as arsenic, with the crop water management strongly affecting uptake. This study utilises the Bengal and Assam Aus Panel to conduct genome wide association (GWA) mapping for arsenic in shoots and grains of rice grown over 2 years under continually flooded (CF) and alternate wetting and drying (AWD). The aim was to assess genotype by water management interaction, identify quantitative trait loci (QTL) for arsenic accumulation, and propose candidate genes for lowering grain arsenic. RESULTS AWD significantly reduced grain arsenic across all cultivars on average by 15.7 and 15.1% in year 1 and 2 respectively and shoot arsenic by 27.0% compared to the plants grown under CF. There was a weak cultivar by treatment interaction for grain for arsenic. All traits were strongly influenced by cultivar. GWA mapping identified a large number of 74 individual QTLs for arsenic, with six QTLs showing stability across years and/or water treatments. Three of the loci (one on chromosome 3, one on chromosome 4, and one on chromosome 5) were investigated in detail using an approach of clustering cultivars that had similar haplotypes for the QTL regions and then looking at the phenotypic values across the clusters. Two of the identified QTLs co-localised with known genes involved in arsenic accumulation, including Lsi2 which has not previously been reported to underlie a grain arsenic QTL. CONCLUSIONS This study has identified a number of novel QTLs for arsenic accumulation, as well as cultivars that consistently accumulate less arsenic over multiple field traits. The use of a haplotype clustering approach after GWA mapping has allowed for the effect, in terms of arsenic accumulation, to be determined for cultivars that share similar genomic sequence. Allocating nine high yielding Bangladeshi cultivars to these clusters has identified the potential of utilising these QTLs in breeding programmes; for example, incorporation of the QTL on chromosome 5 should decrease grain arsenic in elite high yielding Bangladeshi cultivars by 10% in all high yielding cultivars studied.
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Affiliation(s)
- Gareth J Norton
- School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, Scotland.
| | - Anthony J Travis
- School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, Scotland
| | - Partha Talukdar
- School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, Scotland
| | - Mahmud Hossain
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Md Rafiqul Islam
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Alex Douglas
- School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, Scotland
| | - Adam H Price
- School of Biological Sciences, University of Aberdeen, Aberdeen, AB24 3UU, Scotland.
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Srivastava S, Pathare VS, Sounderajan S, Suprasanna P. Nitrogen supply influences arsenic accumulation and stress responses of rice (Oryza sativa L.) seedlings. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:599-606. [PMID: 30641430 DOI: 10.1016/j.jhazmat.2018.12.121] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 12/30/2018] [Accepted: 12/31/2018] [Indexed: 06/09/2023]
Abstract
In the present study, the effects of nitrogen supply (low nitrogen: LN and high nitrogen: HN) on As stress (25 μM) responses of rice seedlings were monitored for 7 d. The mean length of primary, adventitious and lateral roots and number of adventitious and lateral roots were significantly improved in LN+As, while further reduced in HN+As, as compared to As alone treatment at 7 d. The LN+As treatment resulted in significant decline in As (848 μg g-1 DW) than that in As alone treatment (1434 μg g-1 DW) in roots but no significant effect was seen in shoot. In contrast, HN+As treatment showed significant increase in shoot As (6.86 μg g-1 DW) as compared to As alone treatment (3.43 μg g-1 DW). The level of nitrate was increased in roots but declined in shoots in As alone treatment. Surprisingly, no improvement in nitrate level was seen in HN+As as compared to that in As alone treatment in both root and shoot. The expression analysis of nitrate transporters (NRT2;1, NRT2;3a, NRT2;4) showed significant differences in expression patterns in As, LN+As and HN+As treatments. In conclusion, nitrogen supply had profound influences on responses of rice plants to As.
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Affiliation(s)
- Sudhakar Srivastava
- Institute of Environment & Sustainable Development, Banaras Hindu University, Varanasi, 221005, U.P., India.
| | - V S Pathare
- School of Biological Sciences, Post Office Box 646340, Washington State University, Pullman, WA, 99164-6340, USA
| | - Suvarna Sounderajan
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400085, Maharashtra, India
| | - P Suprasanna
- Plant Stress Physiology and Biotechnology Section, Nuclear Agriculture & Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, Maharashtra, India
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Afroz H, Su S, Carey M, Meharg AA, Meharg C. Inhibition of Microbial Methylation via arsM in the Rhizosphere: Arsenic Speciation in the Soil to Plant Continuum. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:3451-3463. [PMID: 30875469 DOI: 10.1021/acs.est.8b07008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The interplay between rice roots and manuring with respect to arsenic speciation, subsequent assimilation into roots, and translocation to shoots in paddy soil was investigated, alongside bacterial diversity characterization. Planting increased soil Eh and decreased soil solution arsenic species: inorganic arsenic, monomethylarsonic acid, trimethylarsenic oxide, and dimethylarsinic acid. Presence of plant roots increased the copy number of Clostridium and Tumebacillus 16S rRNA as well as Streptomyces arsenic methylating gene ( arsM), but decreased Acidobacteria_GP1 16S rRNA and Rhodopseudomonas. palustris BisB5 arsM. Sum of arsenic species decreased under root influence due to the interplay of inorganic arsenic mobilization in bulk soil under anaerobic and immobilization under oxygenated rhizospheric conditions. Manuring increased all soil solution arsenic species (>90%), shoot total arsenic (60%), copy number of Geobacter 16S rRNA, and R. palustris TIE-1 arsM, indicative of a shift towards microbes with iron reduction and oxidation as well as arsenic methylation capabilities.
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Affiliation(s)
- Hasina Afroz
- Institute for Global Food Security , Queen's University Belfast , David Keir Building, Malone Road , Belfast , BT9 5BN , United Kingdom
| | - Shiming Su
- Institute of Environment and Sustainable Development in Agriculture , Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Environment, Ministry of Agriculture , Beijing 100081 , P.R. China
| | - Manus Carey
- Institute for Global Food Security , Queen's University Belfast , David Keir Building, Malone Road , Belfast , BT9 5BN , United Kingdom
| | - Andy A Meharg
- Institute for Global Food Security , Queen's University Belfast , David Keir Building, Malone Road , Belfast , BT9 5BN , United Kingdom
| | - Caroline Meharg
- Institute for Global Food Security , Queen's University Belfast , David Keir Building, Malone Road , Belfast , BT9 5BN , United Kingdom
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Moulick D, Santra SC, Ghosh D. Effect of selenium induced seed priming on arsenic accumulation in rice plant and subsequent transmission in human food chain. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 152:67-77. [PMID: 29407784 DOI: 10.1016/j.ecoenv.2018.01.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 01/13/2018] [Accepted: 01/17/2018] [Indexed: 05/21/2023]
Abstract
The south-east Asian countries are facing a serious threat of arsenic (As) toxicity due to extensive use of As contaminated groundwater for rice cultivation. This experiment was configured to assess the consequences of rice seed priming with selenium (Se) and cultivation in As free and As contaminated soil. The experiment was arranged in a factorial complete randomized design having two factors viz. seed priming and soil As stress with total twenty-five treatment combinations replicated thrice. Seed priming with Se promotes growth, yield under both As free and As stressed conditions. Se supplementation considerably enhanced the tiller numbers, chlorophyll content, plant height, panicle length and test weight of rice by 23.1%, 23.4%, 15.6% and 30.1%, respectively. When cultivated in As spiked soil and compared with control, Se primed plant enhance growth and yield by reducing As translocation from root to aerial parts, expressed as translocation factor (TF). A reduction of TF root to shoot (46.96%), TF root to husk (36.78-38.01%), TF root to grain (39.63%) can be seen among the Se primed plants than unprimed plants both cultivated in similar As stress. Besides these, a noteworthy reduction in estimated daily intake (EDI) and cancer risk (CR) were also noticed with the consumption of cooked rice obtained after cooking of brown rice of Se primed plants than their unprimed counterparts.
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Affiliation(s)
- Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, India.
| | - Subhas Chandra Santra
- Department of Environmental Science, University of Kalyani, Nadia, West Bengal, India.
| | - Dibakar Ghosh
- ICAR - Directorate of Weed Research, Jabalpur, Madhya Pradesh, India.
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Dahlawi S, Naeem A, Iqbal M, Farooq MA, Bibi S, Rengel Z. Opportunities and challenges in the use of mineral nutrition for minimizing arsenic toxicity and accumulation in rice: A critical review. CHEMOSPHERE 2018; 194:171-188. [PMID: 29202269 DOI: 10.1016/j.chemosphere.2017.11.149] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 11/21/2017] [Accepted: 11/25/2017] [Indexed: 06/07/2023]
Abstract
Growing rice on arsenic (As)-contaminated soil or irrigating with As-contaminated water leads to significant accumulation of As in grains. Moreover, rice accumulates more As into grains than other cereal crops. Thus, rice consumption has been identified as a major route of human exposure to As in many countries. Inorganic As species are carcinogenic and could pose a considerable health risk to humans even at low dietary concentration. Genotypic variation and concentration of nutrients such as iron, manganese, phosphate, sulfur and silicon are the two main factors that affect As accumulation in rice grains. Therefore, in addition to better growth and yield of plants, application of specific nutrients in optimum quantities offers an added benefit of decreasing As content in rice grains. These nutrient elements influence speciation of As in rhizosphere, compete with As for root uptake and interfere with As translocations to the shoot and ultimately accumulation in grains. This papers critically appraises the methods, forms and rate of application, mechanisms and extent of efficiency of different mineral nutrients in decreasing As accumulation in rice grains.
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Affiliation(s)
- Saad Dahlawi
- Department of Environmental Health, College of Public Health, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia; Institute for Research and Medical Consultation (IRMC), Imam Abdulrehman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia
| | - Asif Naeem
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan; Nuclear Institute of Agriculture and Biology, Jhang Road, Faisalabad, Pakistan
| | - Muhammad Iqbal
- Department of Botany, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Muhammad Ansar Farooq
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Sadia Bibi
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Zed Rengel
- School of Agriculture and Environment, University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia
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Zou L, Zhang S, Duan D, Liang X, Shi J, Xu J, Tang X. Effects of ferrous sulfate amendment and water management on rice growth and metal(loid) accumulation in arsenic and lead co-contaminated soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:8888-8902. [PMID: 29330821 DOI: 10.1007/s11356-017-1175-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 12/27/2017] [Indexed: 06/07/2023]
Abstract
Arsenic (As) and lead (Pb) commonly co-exist with high concentrations in paddy soil mainly due to human activities in south of China. This study investigates the effect of ferrous sulfate (FeSO4) amendment and water management on rice growth and arsenic (As) and lead (Pb) accumulation in rice plants. A paddy soil co-contaminated with As and Pb was chosen for the pot experiment with three FeSO4 levels (0, 0.25, and 1%, on a dry weight basis) and two water managements (flooded, non-flooded). The concentrations of As and Pb in iron plaques and rice plants were determined. Application of FeSO4 and non-flooded conditions significantly accelerated the growth of rice plants. With the addition of FeSO4, iron plaques were significantly promoted and most of the As and Pb were sequestered in the iron plaques. The addition of 0.25% FeSO4 and non-flooded conditions did not significantly change the accumulation of As and Pb in rice grains. The practice also significantly decreased the translocation factor (TF) of As and Pb from roots to above-ground parts which might have been aided by the reduction of As and Pb availability in soil, the preventing effect of rice roots, and the formation of more reduced glutathione (GSH). Flooded conditions decreased the Pb concentration in rice plants, but increased As accumulation. Moreover, rice grew thin and weak and even died under flooded conditions. Overall, an appropriate FeSO4 dose and non-flooded conditions might be feasible for rice cultivation, especially addressing the As issue in the co-contaminated soil. However, further detailed studies to decrease the accumulation of Pb in edible parts and the field application in As and Pb co-contaminated soil are recommended.
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Affiliation(s)
- Lina Zou
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, People's Republic of China
| | - Shu Zhang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Dechao Duan
- Bestwa Environmental Protection Sci-Tech Co. Ltd., Hangzhou, 310015, China
| | - Xinqiang Liang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jiyan Shi
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jianming Xu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, People's Republic of China
| | - Xianjin Tang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Zhejiang University, 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, People's Republic of China.
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Ashraf U, Hussain S, Akbar N, Anjum SA, Hassan W, Tang X. Water management regimes alter Pb uptake and translocation in fragrant rice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 149:128-134. [PMID: 29156304 DOI: 10.1016/j.ecoenv.2017.11.033] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 11/05/2017] [Accepted: 11/10/2017] [Indexed: 06/07/2023]
Abstract
Rice cultivation in lead (Pb) polluted soils often leads to high Pb contents in rice grains. The present study investigated the dynamics of Pb uptake under different water regimes in two fragrant rice cultivars i.e., Guixiangzhan and Nongxiang-18. Results revealed that water dynamics regulated the antioxidant activities in both rice cultivars under Pb toxicity. Compared to continuous ponding (CP), taken as control, alternate wetting and drying (AWD) reduced the Pb contents in roots, stems, leaves, and grains up to 17%, 41%, 22%, and 52% in Guixiangzhan and 23%, 19%, 17%, and 37% in Nongxiang-18, respectively. Furthermore, AWD-treatments reduced paddy yield from 11% to 21% in Guixiangzhan and 11-33% in Nongxiang-18 under Pb toxicity. In conclusion, Pb loadings in fragrant rice can be regulated by effective water management and/or by controlling irrigation water at different growth stages. Special control measures or management is required to cultivate the rice in metal(loid)s polluted soils.
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Affiliation(s)
- Umair Ashraf
- Department of Crop science and Technology, College of Agriculture, South China Agricultural University, Guangzhou 510642, PR China; Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan
| | - Saddam Hussain
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan
| | - Nadeem Akbar
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan
| | - Shakeel Ahmad Anjum
- Department of Agronomy, University of Agriculture, Faisalabad 38040, Pakistan
| | | | - Xiangru Tang
- Department of Crop science and Technology, College of Agriculture, South China Agricultural University, Guangzhou 510642, PR China.
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Wu C, Wang Q, Xue S, Pan W, Lou L, Li D, Hartley W. Do aeration conditions affect arsenic and phosphate accumulation and phosphate transporter expression in rice (Oryza sativa L.)? ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:43-51. [PMID: 27798801 DOI: 10.1007/s11356-016-7976-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 10/24/2016] [Indexed: 05/16/2023]
Abstract
Widespread contamination of rice with arsenic (As) has revealed a major exposure pathway to humans. The present study aimed to investigate the effects of oxygen in the rhizosphere on phosphate (P) transporter (for arsenate transportation) expressions, on As and P accumulation and As speciation in four rice genotypes. Oxygenation marginally increased root and shoot length. Total As concentrations in rice roots were dramatically reduced following aeration compared to stagnant treatments (p < 0.001). Aeration treatments significantly increased arsenate while reducing arsenite concentrations in roots (p < 0.001). Root arsenite concentrations were 1.5-2.5 times greater in stagnant than in aeration treatments. Total P concentrations in rice roots were dramatically increased following aeration compared to stagnant treatments. The relative abundance of phosphate transporter (inorganic phosphate transporter and phosphate/H+ symporter family protein) expressions showed downregulation in aeration treatments, particularly for SY-9586, XWX-17, and XWX-12 in inorganic phosphate transporter expressions and XWX-17 in phosphate/H+ symporter family protein expression (p < 0.05). The relative abundance of phosphate carrier protein expressions were relatively higher than the other phosphate transporters, showing upregulation in aeration treatments.
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Affiliation(s)
- Chuan Wu
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Qiongli Wang
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Shengguo Xue
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China.
| | - Weisong Pan
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, 410128, China
| | - Laiqing Lou
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - Daojun Li
- College of Life Sciences, Nanjing Agricultural University, Nanjing, 210095, People's Republic of China
| | - William Hartley
- Crop and Environment Sciences Department, Harper Adams University, Shropshire, Newport, TF10 8NB, UK
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Aghaee MA, Godfrey LD. Winter flooding of California rice fields reduces immature populations of Lissorhoptrus oryzophilus (Coleoptera: Curculionidae) in the spring. PEST MANAGEMENT SCIENCE 2017; 73:1538-1546. [PMID: 27990749 DOI: 10.1002/ps.4507] [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: 06/26/2016] [Revised: 09/10/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND In California, rice fields are flooded over the winter months (November to March) to facilitate degradation of post-harvest rice straw and to provide temporary habitat for migratory waterfowl. Prior research showed that winter flood rice fields had fewer rice water weevil (Lissorhoptrus oryzophilus), larvae and pupae during the rice production season than fields that were left unflooded in the winter. A series of experiments were conducted to provide further support for these trends under controlled conditions and to find a mechanism for this phenomenon. RESULTS Under winter flooded conditions there was a 50% reduction in populations of weevil immatures compared with the untreated control (no straw or winter flood). These same conditions corresponded to a 20% increase in the amount of silicon found in plant tissues in 2014 and a 39 to 90% decrease in methane production in the soil from 2013 to 2014, respectively. CONCLUSION Evidence from previous field research and these controlled studies supports winter flooding as an appropriate tactic for controlling L. oryzophilus populations in the spring. However, the mechanism that would explain why winter flooding adversely affects L. oryzophilus immatures remains unclear. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Mohammad-Amir Aghaee
- Department of Entomology and Nematology, University of California, Davis, CA, USA
| | - Larry D Godfrey
- Department of Entomology and Nematology, University of California, Davis, CA, USA
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Norton GJ, Travis AJ, Danku JMC, Salt DE, Hossain M, Islam MR, Price AH. Biomass and elemental concentrations of 22 rice cultivars grown under alternate wetting and drying conditions at three field sites in Bangladesh. Food Energy Secur 2017; 6:98-112. [PMID: 28979771 PMCID: PMC5599981 DOI: 10.1002/fes3.110] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/22/2017] [Accepted: 03/01/2017] [Indexed: 11/13/2022] Open
Abstract
As the global population grows, demand on food production will also rise. For rice, one limiting factor effecting production could be availability of fresh water, hence adoption of techniques that decrease water usage while maintaining or increasing crop yield are needed. Alternative wetting and drying (AWD) is one of these techniques. AWD is a method by which the level of water within a rice field cycles between being flooded and nonflooded during the growth period of the rice crop. The degree to which AWD affects cultivars differently has not been adequately addressed to date. In this study, 22 rice cultivars, mostly landraces of the aus subpopulation, plus some popular improved indica cultivars from Bangladesh, were tested for their response to AWD across three different field sites in Bangladesh. Grain and shoot elemental concentrations were determined at harvest. Overall, AWD slightly increased grain mass and harvest index compared to plants grown under continually flooded (CF) conditions. Plants grown under AWD had decreased concentrations of nitrogen in their straw compared to plants grown under CF. The concentration of elements in the grain were also affected when plants were grown under AWD compared to CF: Nickel, copper, cadmium and iron increased, but sodium, potassium, calcium, cobalt, phosphorus, molybdenum and arsenic decreased in the grains of plants grown under AWD. However, there was some variation in these patterns across different sites. Analysis of variance revealed no significant cultivar × treatment interaction, or site × cultivar × treatment interaction, for any of the plant mass traits. Of the elements analyzed, only grain cadmium concentrations were significantly affected by treatment × cultivar interactions. These data suggest that there is no genetic adaptation amongst the cultivars screened for response to AWD, except for grain cadmium concentration and imply that breeding specifically for AWD is not needed.
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Affiliation(s)
- Gareth J Norton
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen AB24 3UU UK
| | - Anthony J Travis
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen AB24 3UU UK
| | - John M C Danku
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen AB24 3UU UK.,Centre for Plant Integrative Biology School of Biosciences University of Nottingham Sutton Bonington Campus Loughborough LE12 5RD UK
| | - David E Salt
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen AB24 3UU UK.,Centre for Plant Integrative Biology School of Biosciences University of Nottingham Sutton Bonington Campus Loughborough LE12 5RD UK
| | - Mahmud Hossain
- Department of Soil Science Bangladesh Agricultural University Mymensingh Bangladesh
| | - Md Rafiqul Islam
- Department of Soil Science Bangladesh Agricultural University Mymensingh Bangladesh
| | - Adam H Price
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen AB24 3UU UK
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42
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Bakhat HF, Zia Z, Fahad S, Abbas S, Hammad HM, Shahzad AN, Abbas F, Alharby H, Shahid M. Arsenic uptake, accumulation and toxicity in rice plants: Possible remedies for its detoxification: A review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:9142-9158. [PMID: 28160172 DOI: 10.1007/s11356-017-8462-2] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 01/16/2017] [Indexed: 05/13/2023]
Abstract
Arsenic (As) is a toxic metalloid. Serious concerns have been raised in literature owing to its potential toxicity towards living beings. The metalloid causes various water- and food-borne diseases. Among food crops, rice contains the highest concentrations of As. Consuming As-contaminated rice results in serious health issues. Arsenic concentration in rice is governed by various factors in the rhizosphere such as availability and concentration of various mineral nutrients (iron, phosphate, sulfur and silicon) in soil solution, soil oxidation/reduction status, inter-conversion between organic and inorganic As compounds. Agronomic and civil engineering methods can be adopted to decrease As accumulation in rice. Agronomic methods such as improving soil porosity/aeration by irrigation management or creating the conditions favorable for As-precipitate formation, and decreasing As uptake and translocation by adding a inorganic nutrients that compete with As are easy and cost effective techniques at field scale. This review focuses on the factors regulating and competing As in soil-plant system and As accumulation in rice grains. Therefore, it is suggested that judicious use of water, management of soil, antagonistic effects of various inorganic plant-nutrients to As should be considered in rice cultivated areas to mitigate the building up of As in human food chain and with minimum negative impact to the environment.
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Affiliation(s)
- Hafiz Faiq Bakhat
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100, Pakistan.
| | - Zahida Zia
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100, Pakistan
| | - Shah Fahad
- College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, China.
| | - Sunaina Abbas
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100, Pakistan
| | - Hafiz Mohkum Hammad
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100, Pakistan
| | | | - Farhat Abbas
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan
| | - Hesham Alharby
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS Institute of Information Technology, Vehari, 61100, Pakistan
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43
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Xiao A, Ouyang Y, Li WC, Ye Z. Effect of organic manure on Cd and As accumulation in brown rice and grain yield in Cd-As-contaminated paddy fields. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:9111-9121. [PMID: 28150148 DOI: 10.1007/s11356-017-8460-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 01/16/2017] [Indexed: 06/06/2023]
Abstract
Large areas of paddy fields in mining areas in south China have been contaminated by mixed Cd and As. To test the possibility of using organic manure (OM) as a method of reducing Cd and As accumulation in brown rice and increase the grain yield in such paddy fields, two rice cultivars [Jianyou G2 (JY) and Fengyousimiao (FY)] and three amounts of OM (0, 0.5, 1.5 kg/m2) were examined in three Cd-As-contaminated paddy fields (Fogang, Dabaoshan, Fankou) in Guangdong Province. The results show that the application of OM can effectively increase the grain yield and reduce Cd. However, the As concentration was found to increase in brown rice, especially when high levels of OM were used. The addition of OM increased the soil pH and organic matter content in the soils and enhanced the activities of superoxide dismutase (SOD) and catalase (CAT) in plant tissues. Our results suggest that OM can be used as an amendment to effectively decrease Cd accumulation in brown rice in Cd-contaminated paddy fields. However, it is necessary to consider the negative effects of OM amendments when adding OM to As-contaminated paddy fields.
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Affiliation(s)
- Anwen Xiao
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Yun Ouyang
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China
| | - Wai Chin Li
- Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, SAR, People's Republic of China.
| | - Zhihong Ye
- School of Life Sciences, State Key Laboratory of Biocontrol, Sun Yat-sen University, Guangzhou, 510006, People's Republic of China.
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44
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Wu C, Huang L, Xue SG, Pan WS, Zou Q, Hartley W, Wong MH. Oxic and anoxic conditions affect arsenic (As) accumulation and arsenite transporter expression in rice. CHEMOSPHERE 2017; 168:969-975. [PMID: 27817896 DOI: 10.1016/j.chemosphere.2016.10.114] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 10/17/2016] [Accepted: 10/27/2016] [Indexed: 06/06/2023]
Abstract
Arsenic (As) exposure from rice consumption has now become a global health issue. This study aimed to investigate the effects of rice rhizosphere oxic conditions on silicate transporter (responsible for arsenite transportation) expressions, and on As accumulation and speciation in four rice genotypes, including two hybrid genotypes (Xiangfengyou9, Shenyou9586) and two indica subspecies (Xiangwanxian17, Xiangwanxian12). Oxic and anoxic treatments have different effects on root length (p < 0.001) and weight (p < 0.05). Total As concentrations in roots were dramatically lower in oxic treatments (88.8-218 mg/kg), compared to anoxic treatments (147-243 mg/kg) (p < 0.001). Moreover, root and shoot arsenite concentrations in oxic treatments were lower than that in anoxic treatments in arsenite treatments. The relative abundance of silicate transporter expressions displayed a trend of down-regulation in oxic treatments compared to anoxic treatments, especially significantly different for Xiangwanxian17, Xiangwanxian12 in Lsi1 expressions (p < 0.05), Xiangfengyou9, Shenyou9586, Xiangwanxian17 in Lsi2 expressions (p < 0.05). However, there were no significant differences of transporter expressions in different As treatments and genotypes. It may be a possible reason for low As accumulation in rice growing aerobically compared to flooded condition and a potential route to reduce the health risk of As in rice.
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Affiliation(s)
- Chuan Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China.
| | - Liu Huang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Sheng-Guo Xue
- School of Metallurgy and Environment, Central South University, Changsha 410083, China.
| | - Wei-Song Pan
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Qi Zou
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - William Hartley
- Crop and Environment Sciences Department, Harper Adams University, Newport, Shropshire, TF10 8NB, United Kingdom
| | - Ming-Hung Wong
- Consortium on Health, Environment, Education and Research (CHEER), Hong Kong Institute of Education, Tai Po, Hong Kong Special Administrative Region; School of Environment, Jinan University, Guangzhou, China
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45
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Islam S, Rahman MM, Islam MR, Naidu R. Arsenic accumulation in rice: Consequences of rice genotypes and management practices to reduce human health risk. ENVIRONMENT INTERNATIONAL 2016; 96:139-155. [PMID: 27649473 DOI: 10.1016/j.envint.2016.09.006] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 08/16/2016] [Accepted: 09/07/2016] [Indexed: 05/11/2023]
Abstract
Rice is an essential staple food and feeds over half of the world's population. Consumption of rice has increased from limited intake in Western countries some 50years ago to major dietary intake now. Rice consumption represents a major route for inorganic arsenic (As) exposure in many countries, especially for people with a large proportion of rice in their daily diet as much as 60%. Rice plants are more efficient in assimilating As into its grains than other cereal crops and the accumulation may also adversely affect the quality of rice and their nutrition. Rice is generally grown as a lowland crop in flooded soils under reducing conditions. Under these conditions the bioavailability of As is greatly enhanced leading to excessive As bioaccumulation compared to that under oxidizing upland conditions. Inorganic As species are carcinogenic to humans and even at low levels in the diet pose a considerable risk to humans. There is a substantial genetic variation among the rice genotypes in grain-As accumulation as well as speciation. Identifying the extent of genetic variation in grain-As concentration and speciation of As compounds are crucial to determining the rice varieties which accumulate low inorganic As. Varietal selection, irrigation water management, use of fertilizer and soil amendments, cooking practices etc. play a vital role in reducing As exposure from rice grains. In the meantime assessing the bioavailability of As from rice is crucial to understanding human health exposure and reducing the risk.
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Affiliation(s)
- Shofiqul Islam
- Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia; Department of Soil Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia
| | - M R Islam
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, NSW 2308, Australia.
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46
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Yao L, Huang L, He Z, Zhou C, Lu W, Bai C. Delivery of roxarsone via chicken diet→chicken→chicken manure→soil→rice plant. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 566-567:1152-1158. [PMID: 27265740 DOI: 10.1016/j.scitotenv.2016.05.157] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 05/21/2016] [Accepted: 05/21/2016] [Indexed: 06/05/2023]
Abstract
Roxarsone (ROX), a widely used feed additive, occurs as itself and its metabolites in animal manure. Rice is prone to accumulate As than other staple food. Four diets with 0, 40, 80 and 120mgROXkg(-1) were fed in chickens, and four chicken manures (CMs) were collected to fertilize rice plants in a soil culture experiment. Linear regression analysis shows that the slopes of As species including 4-hydroxy-phenylarsonic acid, As(V), As(III), monomethylarsonic acid (MMA) and dimethylarsinic acid (DMA) in CM versus dietary ROX were 0.033, 0.314, 0.033, 0.054 and 0.138, respectively. Both As(III) and DMA were determined in all rice grains, and As(III), As(V), MMA and DMA in rice hull, but detectable As forms in rice straws and soils increased with increasing ROX dose. Grain As(III) was unrelated to ROX dose but exceeded the Chinese rice As limit (0.15mgAs(III)kg(-1)). Dietary ROX enhanced straw As(III) mostly, with the slope of 0.020, followed by hull DMA (0.006) and grain DMA (0.002). The slopes of soil As(V) and As(III) were 0.003 and 0.001. This is the first report illustrating the quantitative delivery of ROX via food chain, which helps to evaluate health and environmental risks caused by ROX use in animal production.
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Affiliation(s)
- Lixian Yao
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
| | - Lianxi Huang
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Zhaohuan He
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Changmin Zhou
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Weisheng Lu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Cuihua Bai
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
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47
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Managing Water and Soils to Achieve Adaptation and Reduce Methane Emissions and Arsenic Contamination in Asian Rice Production. WATER 2016. [DOI: 10.3390/w8040141] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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48
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Syu CH, Huang CC, Jiang PY, Lee CH, Lee DY. Arsenic accumulation and speciation in rice grains influenced by arsenic phytotoxicity and rice genotypes grown in arsenic-elevated paddy soils. JOURNAL OF HAZARDOUS MATERIALS 2015; 286:179-86. [PMID: 25577320 DOI: 10.1016/j.jhazmat.2014.12.052] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2014] [Revised: 12/09/2014] [Accepted: 12/27/2014] [Indexed: 05/13/2023]
Abstract
Rice consumption is a major route of As exposure to human for the population of worldwide. This study investigates the effect of phytotoxicity and rice genotypes on the content and speciation of As in rice grains grown in different levels of As-elevated paddy soils from Taiwan. Three levels of As-elevated soils and six rice genotypes commonly planted in Taiwan were used for this study. The results indicate that As contents in grains of rice is not proportional to soil As concentrations and they were equal or higher in indica genotypes than japonica genotypes used in this study. It was also found that the As phytotoxicity not only reducing the grain yields but also the As concentrations in grain of rice. The predominant As species found in rice grains were dimethylarsinic acid (DMA) and arsenite. The concentrations of DMA increased with total As concentrations, wherggeas the arsenite remained in a narrow range from 0.1 to 0.3 mg kg(-1). Because of the lower toxicity of DMA than inorganic As species, the health risks may not be increased through consumption of rice even when total As content in the grains is increased.
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Affiliation(s)
- Chien-Hui Syu
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - Chia-Chen Huang
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - Pei-Yu Jiang
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - Chia-Hsing Lee
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan
| | - Dar-Yuan Lee
- Department of Agricultural Chemistry, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 10617, Taiwan.
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Linquist BA, Anders MM, Adviento-Borbe MAA, Chaney RL, Nalley LL, da Rosa EFF, van Kessel C. Reducing greenhouse gas emissions, water use, and grain arsenic levels in rice systems. GLOBAL CHANGE BIOLOGY 2015; 21:407-17. [PMID: 25099317 DOI: 10.1111/gcb.12701] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 07/22/2014] [Accepted: 07/25/2014] [Indexed: 05/02/2023]
Abstract
Agriculture is faced with the challenge of providing healthy food for a growing population at minimal environmental cost. Rice (Oryza sativa), the staple crop for the largest number of people on earth, is grown under flooded soil conditions and uses more water and has higher greenhouse gas (GHG) emissions than most crops. The objective of this study was to test the hypothesis that alternate wetting and drying (AWD--flooding the soil and then allowing to dry down before being reflooded) water management practices will maintain grain yields and concurrently reduce water use, greenhouse gas emissions and arsenic (As) levels in rice. Various treatments ranging in frequency and duration of AWD practices were evaluated at three locations over 2 years. Relative to the flooded control treatment and depending on the AWD treatment, yields were reduced by <1-13%; water-use efficiency was improved by 18-63%, global warming potential (GWP of CH4 and N2 O emissions) reduced by 45-90%, and grain As concentrations reduced by up to 64%. In general, as the severity of AWD increased by allowing the soil to dry out more between flood events, yields declined while the other benefits increased. The reduction in GWP was mostly attributed to a reduction in CH4 emissions as changes in N2 O emissions were minimal among treatments. When AWD was practiced early in the growing season followed by flooding for remainder of season, similar yields as the flooded control were obtained but reduced water use (18%), GWP (45%) and yield-scaled GWP (45%); although grain As concentrations were similar or higher. This highlights that multiple environmental benefits can be realized without sacrificing yield but there may be trade-offs to consider. Importantly, adoption of these practices will require that they are economically attractive and can be adapted to field scales.
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Affiliation(s)
- Bruce A Linquist
- Department of Plant Sciences, University of California, Davis, CA, 95616, USA
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Kumar A, Dwivedi S, Singh RP, Chakrabarty D, Mallick S, Trivedi PK, Adhikari B, Tripathi RD. Evaluation of amino acid profile in contrasting arsenic accumulating rice genotypes under arsenic stress. BIOLOGIA PLANTARUM 2014; 58:733-742. [DOI: 10.1007/s10535-014-0435-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
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