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Liu Q, Zhang Z, Bai C, Li Y, Yin X, Lin W, Yao L. Disturbed nutrient accumulation and cell wall metabolism in panicles are responsible for rice straighthead disease. PHYSIOLOGIA PLANTARUM 2024; 176:e14214. [PMID: 38366694 DOI: 10.1111/ppl.14214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/26/2023] [Accepted: 01/19/2024] [Indexed: 02/18/2024]
Abstract
Rice straighthead disease substantially reduces crop yield, posing a significant threat to global food security. Dimethylarsinic acid (DMA) is the causal agent of straighthead disease and is highly toxic to the reproductive tissue of rice. However, the precise physiological mechanism underlying DMA toxicity remains unknown. In this study, six rice varieties with varying susceptibility to straighthead were utilized to investigate the growth performance and element distribution in rice panicles under DMA stress through pot experiments, as well as to explore the physiological response to DMA using transcriptomic methods. The findings demonstrate significant variations in both DMA accumulation and straighthead sensitivity among cultivars. The susceptible varieties exhibited higher DMA accumulation indices and displayed typical symptoms of straighthead disease, including erect panicles, deformed rachides and husks, and reduced seed setting rate and grain yield when compared to the resistant varieties. Moreover, DMA addition promoted mineral nutrients to accumulate in rachides and husks but less in grains. DMA showed preferential accumulation in rice grains with a distribution pattern similar to that of Copper (Cu) and zinc (Zn) within the panicle. Transcriptome analyses underscored the substantial impact of DMA on gene expression related to mineral metabolism. Notably, DMA addition significantly up-regulated the expression of pectin methylesterase, pectin lyase, polygalacturonase, and exogalacturonase genes in Nanjingxiangzhan, while these genes were down-regulated or weakly expressed in Ruanhuayou 1179. The alteration of pectin metabolic pathways induced by DMA may lead to abnormality of cell wall assembly and modification, thereby resulting in deformed rice panicles.
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Affiliation(s)
- Qinghui Liu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Zhijun Zhang
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Cuihua Bai
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou, China
| | - Yi Li
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Xueying Yin
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Wanting Lin
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
| | - Lixian Yao
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou, China
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Liu Q, Lu W, Bai C, Xu C, Ye M, Zhu Y, Yao L. Cadmium, arsenic, and mineral nutrients in rice and potential risks for human health in South China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27857-7. [PMID: 37246182 DOI: 10.1007/s11356-023-27857-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 05/19/2023] [Indexed: 05/30/2023]
Abstract
Rice (Oryza sativa L.) is one of the most important staple food crops worldwide. For people fed on rice, toxic elements cadmium (Cd) and arsenic (As) and mineral nutrients in rice are pivotal to evaluate potential risks of harmful element intake and malnutrition. We collected rice samples of 208 cultivars (83 inbred and 125 hybrid) from fields in South China and determined Cd, As, As species, and mineral elements in brown rice. Chemical analysis shows that the average content of Cd and As in brown rice were 0.26 ± 0.32 and 0.21 ± 0.08 mg·kg-1, respectively. Inorganic As (iAs) was the dominative As species in rice. Rice Cd and iAs in 35.1% and 52.4% of the 208 cultivars exceeded rice Cd and iAs limits, respectively. Significant variations of rice subspecies and regions were found for Cd, As, and mineral nutrients in rice (P < 0.05). Inbred rice had lower As uptake and more balanced mineral nutrition than hybrid species. Significant correlation was observed between Cd, As versus mineral elements like Ca, Zn, B, and Mo (P < 0.05). Health risk assessment indicates that high risks of non-carcinogenic and carcinogenic of Cd and iAs, and malnutrition, in particular Ca, protein and Fe deficiencies, might be caused by rice consumption in South China.
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Affiliation(s)
- Qinghui Liu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, 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
- Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, People's Republic of China
| | - Congzhuo Xu
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Maozhi Ye
- College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, China
| | - Yongcong Zhu
- 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, College of Natural Resources and Environment, South China Agricultural University, Guangzhou, 510642, People's Republic of China.
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Navaretnam R, Soong AC, Goo AQ, Isa NM, Aris AZ, Haris H, Looi LJ. Human health risks associated with metals in paddy plant (Oryza sativa) based on target hazard quotient and target cancer risk. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:2309-2327. [PMID: 35947312 DOI: 10.1007/s10653-022-01344-3] [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: 07/11/2021] [Accepted: 07/17/2022] [Indexed: 05/27/2023]
Abstract
Paddy plants (Oryza sativa) contaminated with metals could be detrimental to human health if the concentrations of metals exceed the permissible limit. Thus, this study aims to assess the risk of the concentrations of As, Se, Cu, Cr, Co, and Ni and their distributions in various parts (roots, stems, leaves, and grains) of paddy plants collected from Sekinchan, Malaysia. Both soil and plant samples were digested according to the United States Environmental Protection Agency (USEPA) Method 3050B and the metal concentrations were determined by the Inductively Coupled Plasma-Mass Spectrometry (ICP-MS). The highest mean translocation factor (TF) was from soil to roots (TF roots/soil ranged from 0.12 to 6.15) and the lowest was from leaves to grain (TF grain/leaves ranged from 0.06 to 0.87). Meanwhile, the bioaccumulation factor (BAF) for all metals was less than 1.0 indicating that paddy plants only absorb metals from the soil but do not accumulate in the grains. The average daily intake for As (1.15 ± 0.25 µg/kg/day) has exceeded the limit proposed by ATSDR and IRIS USEPA (0.30 µg/kg/day). Target cancer risk (TR) of 1.10 × 10-3 for As through rice consumption indicates that the potential cancer risk exists in one out of 1000 exposed individuals. The results from this study could serve as a reference for researchers and policymakers to monitor and formulate strategies in managing As and other metals in paddy plants, especially in Southeast Asian countries.
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Affiliation(s)
- Raneesha Navaretnam
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia , 43400, UPM Serdang, Selangor, Malaysia
| | - Ai Cheng Soong
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia , 43400, UPM Serdang, Selangor, Malaysia
| | - An Qi Goo
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia , 43400, UPM Serdang, Selangor, Malaysia
| | - Noorain Mohd Isa
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia , 43400, UPM Serdang, Selangor, Malaysia
- International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, 71050, Port Dickson, Negeri Sembilan, Malaysia
| | - Ahmad Zaharin Aris
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia , 43400, UPM Serdang, Selangor, Malaysia
- International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, 71050, Port Dickson, Negeri Sembilan, Malaysia
| | - Hazzeman Haris
- School of Biological Sciences, Universiti Sains Malaysia, 11800, Gelugor, Penang, Malaysia
| | - Ley Juen Looi
- Department of Environment, Faculty of Forestry and Environment, Universiti Putra Malaysia , 43400, UPM Serdang, Selangor, Malaysia.
- International Institute of Aquaculture and Aquatic Sciences (I-AQUAS), Universiti Putra Malaysia, 71050, Port Dickson, Negeri Sembilan, Malaysia.
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Anand V, Kaur J, Srivastava S, Bist V, Dharmesh V, Kriti K, Bisht S, Srivastava PK, Srivastava S. Potential of methyltransferase containing Pseudomonas oleovorans for abatement of arsenic toxicity in rice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 856:158944. [PMID: 36152867 DOI: 10.1016/j.scitotenv.2022.158944] [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: 07/03/2022] [Revised: 09/08/2022] [Accepted: 09/19/2022] [Indexed: 06/16/2023]
Abstract
Arsenic (As) has become natural health hazard for millions of people across the world due to its distribution in the food chain. Naturally, it is present in different oxidative states of inorganic [As(V) and As(III)] and organic (DMA, MMA and TMA) forms. Among different mitigation approaches, microbe mediated mitigation of As toxicity is an effective and eco-friendly approach. The present study involves the characterization of bacterial strains containing arsenite methyltransferase (Pseudomonas oleovorans, B4.10); arsenate reductase (Sphingobacterium puteale, B4.22) and arsenite oxidase (Citrobacter sp., B5.12) activity with plant growth promoting (PGP) traits. Efficient reduction of grain As content by 61 % was observed due to inoculation of methyltransferase containing B4.10 as compared to B4.22 (47 %) and B5.12 (49 %). Reduced bioaccumulation of As in root (0.339) and shoot (0.166) in presence of B4.10 was found to be inversely related with translocation factor for Mn (3.28), Fe (0.073), and Se (1.82). Bioaccumulation of these micro elements was found to be associated with the modulated expression of different mineral transporters (OsIRT2, OsFRO2, OsTOM1, OsSultr4;1, and OsZIP2) in rice shoot. Improved dehydrogenase (407 %), and β-glucosidase (97 %) activity in presence of P. oleovorans (B4.10) as compared to arsenate reductase (198 and 50 %), and arsenite oxidase (134 and 69 %) containing bacteria was also observed. Our finding confers the potential of methyltransferase positive P. oleovorans (B4.10) for As stress amelioration. Reduced grain As uptake was found to be mediated by improved plant growth and nutrient uptake associated with enhanced soil microbial activity.
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Affiliation(s)
- Vandana Anand
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jasvinder Kaur
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India; Department of Botany, Kumaun University, Nainital 263002, India
| | - Sonal Srivastava
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vidisha Bist
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Varsha Dharmesh
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kriti Kriti
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India
| | - Saraswati Bisht
- Department of Botany, Kumaun University, Nainital 263002, India
| | - Pankaj Kumar Srivastava
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Suchi Srivastava
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Sarkar MIU, Shahriar S, Naidu R, Rahman MM. Concentrations of potentially toxic and essential trace elements in marketed rice of Bangladesh: exposure and health risks. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.105109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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6
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Su P, Gao P, Sun W, Gao W, Xu F, Wang Q, Xiao E, Soleimani M, Sun X. Keystone taxa and functional analysis in arsenic and antimony co-contaminated rice terraces. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:61236-61246. [PMID: 35438402 DOI: 10.1007/s11356-022-20160-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 04/04/2022] [Indexed: 06/14/2023]
Abstract
Both arsenic (As) and antimony (Sb) are primary environmental contaminants that often co-exist at contaminated sites. Though the microbial community compositions of As- and Sb-contaminated sites have been previously described, the changes in microbial community interactions and community functions remain elusive. In the current study, several key metabolic processes, such as As/Sb detoxification and carbon fixation, were enriched under heavily contaminated conditions. Furthermore, the identified keystone taxa, which are associated with the families Nitrosomonadaceae, Pedosphaeraceae, Halieaceae, and Latescibacterota, demonstrated positive correlations with As and Sb concentrations, indicating that they may be resistant to As and Sb toxicities. Accordingly, arsenic resistance-related functions, along with several functions such as carbon fixation, were found to be enriched in heavily contaminated sites. The current study elucidated the key microbial populations in As- and Sb-contaminated rice terraces and may provide useful information for remediation purposes.
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Affiliation(s)
- Pingzhou Su
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, People's Republic of China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and ControlGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Pin Gao
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and ControlGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Weimin Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and ControlGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
- School of Environment, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Normal University, Xinxiang, 453007, China
| | - Wenlong Gao
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and ControlGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Fuqing Xu
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and ControlGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Qi Wang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and ControlGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China
| | - Enzong Xiao
- Key Laboratory of Water Quality and Conservation in the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, People's Republic of China
| | - Mohsen Soleimani
- Department of Natural Resources, Isfahan University of Technology, 8415683111, Isfahan, Iran
| | - Xiaoxu Sun
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, People's Republic of China.
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and ControlGuangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China.
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Lee SB, Kim GJ, Shin JD, Chung W, Park SK, Choi GH, Park SW, Park YJ. Genome-Scale Profiling and High-Throughput Analyses Unravel the Genetic Basis of Arsenic Content Variation in Rice. FRONTIERS IN PLANT SCIENCE 2022; 13:905842. [PMID: 35958208 PMCID: PMC9361212 DOI: 10.3389/fpls.2022.905842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
Ionomics, the study of the composition of mineral nutrients and trace elements in organisms that represent the inorganic component of cells and tissues, has been widely studied to explore to unravel the molecular mechanism regulating the elemental composition of plants. However, the genetic factors of rice subspecies in the interaction between arsenic and functional ions have not yet been explained. Here, the correlation between As and eight essential ions in a rice core collection was analyzed, taking into account growing condition and genetic factors. The results demonstrated that the correlation between As and essential ions was affected by genetic factors and growing condition, but it was confirmed that the genetic factor was slightly larger with the heritability for arsenic content at 53%. In particular, the cluster coefficient of japonica (0.428) was larger than that of indica (0.414) in the co-expression network analysis for 23 arsenic genes, and it was confirmed that the distance between genes involved in As induction and detoxification of japonica was far than that of indica. These findings provide evidence that japonica populations could accumulate more As than indica populations. In addition, the cis-eQTLs of AIR2 (arsenic-induced RING finger protein) were isolated through transcriptome-wide association studies, and it was confirmed that AIR2 expression levels of indica were lower than those of japonica. This was consistent with the functional haplotype results for the genome sequence of AIR2, and finally, eight rice varieties with low AIR2 expression and arsenic content were selected. In addition, As-related QTLs were identified on chromosomes 5 and 6 under flooded and intermittently flooded conditions through genome-scale profiling. Taken together, these results might assist in developing markers and breeding plans to reduce toxic element content and breeding high-quality rice varieties in future.
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Affiliation(s)
- Sang-Beom Lee
- Crop Foundation Research Division, National Institute of Crop Science, Wanju, South Korea
| | - Gyeong-Jin Kim
- Residual Agrochemical Assessment Division, National Institute of Agriculture Science, Wanju, South Korea
| | - Jung-Du Shin
- Bio-Technology of Multidisciplinary Sciences Co., Wanju, South Korea
| | - Woojin Chung
- Department of Environmental Energy Engineering, Kyonggi University, Suwon, South Korea
| | - Soo-Kwon Park
- Crop Foundation Research Division, National Institute of Crop Science, Wanju, South Korea
| | - Geun-Hyoung Choi
- Residual Agrochemical Assessment Division, National Institute of Agriculture Science, Wanju, South Korea
| | - Sang-Won Park
- Reserch Policy Bureau, Rural Development Administration, Wanju, South Korea
| | - Yong-Jin Park
- Department of Plant Resources, College of Industrial Sciences, Kongju National University, Yesan, South Korea
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Li K, Wang J, Zhang Y. Heavy metal pollution risk of cultivated land from industrial production in China: Spatial pattern and its enlightenment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 828:154382. [PMID: 35278565 DOI: 10.1016/j.scitotenv.2022.154382] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
Industrial production is the main source of heavy metals for cultivated land in China as it has been the world's factory. However, owing to there being insufficient data and appropriate methods, it is difficult to rank the risk level and identify spatial patterns of heavy metal pollution in cultivated land. This study developed an innovative methodology for relative regional risk assessment based on the risk theory of source-pathway-receptor, and the heavy metal pollution risks of cultivated land were appraised on a national scale. The results showed that: (i) the cultivated land with high, medium, and low risk of heavy metal pollution accounted for 4.23%, 10.01%, and 4.53% in China; (ii) the heavy metal pollution risk level of cultivated land increased gradually from the northwest to the southeast of China, and the risk in the north was more serious than that in the south; (iii) the aggregated distribution areas of high-risk regions in China were the Yangtze River Delta, the Pearl River Delta, the Tianjin coastal area, the Sichuan-Chongqing economic zone, central-southern Hunan, central Hebei, and the Yellow River coast of Henan; and (iv) China's prevention and control policies effectively curbed heavy metal pollution in cultivated land, the pollution risks have declined significantly. It is suggested that different protection and control strategies should be upgraded and implemented according to different risk modes.
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Affiliation(s)
- Kai Li
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jieyong Wang
- Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Mondal S, Pramanik K, Ghosh SK, Pal P, Ghosh PK, Ghosh A, Maiti TK. Molecular insight into arsenic uptake, transport, phytotoxicity, and defense responses in plants: a critical review. PLANTA 2022; 255:87. [PMID: 35303194 DOI: 10.1007/s00425-022-03869-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
A critical investigation into arsenic uptake and transportation, its phytotoxic effects, and defense strategies including complex signaling cascades and regulatory networks in plants. The metalloid arsenic (As) is a leading pollutant of soil and water. It easily finds its way into the food chain through plants, more precisely crops, a common diet source for humans resulting in serious health risks. Prolonged As exposure causes detrimental effects in plants and is diaphanously observed through numerous physiological, biochemical, and molecular attributes. Different inorganic and organic As species enter into the plant system via a variety of transporters e.g., phosphate transporters, aquaporins, etc. Therefore, plants tend to accumulate elevated levels of As which leads to severe phytotoxic damages including anomalies in biomolecules like protein, lipid, and DNA. To combat this, plants employ quite a few mitigation strategies such as efficient As efflux from the cell, iron plaque formation, regulation of As transporters, and intracellular chelation with an array of thiol-rich molecules such as phytochelatin, glutathione, and metallothionein followed by vacuolar compartmentalization of As through various vacuolar transporters. Moreover, the antioxidant machinery is also implicated to nullify the perilous outcomes of the metalloid. The stress ascribed by the metalloid also marks the commencement of multiple signaling cascades. This whole complicated system is indeed controlled by several transcription factors and microRNAs. This review aims to understand, in general, the plant-soil-arsenic interaction, effects of As in plants, As uptake mechanisms and its dynamics, and multifarious As detoxification mechanisms in plants. A major portion of this article is also devoted to understanding and deciphering the nexus between As stress-responsive mechanisms and its underlying complex interconnected regulatory networks.
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Affiliation(s)
- Sayanta Mondal
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P.O.-Rajbati, Burdwan, West Bengal, 713104, India
| | - Krishnendu Pramanik
- Mycology and Plant Pathology Laboratory, Department of Botany, Siksha Bhavana, Visva-Bharati, Birbhum, Santiniketan, West Bengal, 731235, India
| | - Sudip Kumar Ghosh
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P.O.-Rajbati, Burdwan, West Bengal, 713104, India
| | - Priyanka Pal
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P.O.-Rajbati, Burdwan, West Bengal, 713104, India
| | - Pallab Kumar Ghosh
- Directorate of Open and Distance Learning, University of Kalyani, Nadia, Kalyani, West Bengal, 741235, India
| | - Antara Ghosh
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P.O.-Rajbati, Burdwan, West Bengal, 713104, India
| | - Tushar Kanti Maiti
- Microbiology Laboratory, Department of Botany, The University of Burdwan, Golapbag, Purba Bardhaman, P.O.-Rajbati, Burdwan, West Bengal, 713104, India.
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Murphy T, Phan K, Irvine KN, Lean D. The Role of Micronutrients and Toxic Metals in the Management of Epidemics in Cambodia. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:11446. [PMID: 34769963 PMCID: PMC8582812 DOI: 10.3390/ijerph182111446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 10/11/2021] [Accepted: 10/28/2021] [Indexed: 11/16/2022]
Abstract
The illegal trade of wildlife in SE Asia has been identified as the likely cause of the COVID-19 pandemic. We reviewed 198 papers on the current COVID pandemic in Cambodia, diseases such as avian influenza and Nipah virus, most likely to develop into a new pandemic in Cambodia, and common features of disease that require mitigation. Artisanal goldmining uses pure mercury in the areas where wildlife is smuggled to China. Moreover, 30-40% of Cambodians are zinc deficient. High levels of arsenic in irrigation water (>1000 µg/L) are associated with very low levels of zinc in rice (5 µg/g) and rice is the primary staple food for the region. Brown rice from nine of 15 paddy fields in the arsenic zone of Cambodia had double the new guidelines of 100 µg/kg inorganic arsenic for children's food in the EU and USA. The combination of deficiencies of essential micronutrients like zinc and pervasive presence of arsenic and mercury has the potential to compromise the immunity of many Cambodians. Innovative solutions are suggested to improve micronutrient nutrition. Toxins that suppress the immune system must be better managed to reduce the virulence of pathogens. Cambodia was not likely the source of the COVID-19 but does have problems that could result in a new pandemic.
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Affiliation(s)
- Thomas Murphy
- Faculty of Science and Technology, International University, Phnom Penh 12000, Cambodia;
| | - Kongkea Phan
- Faculty of Science and Technology, International University, Phnom Penh 12000, Cambodia;
| | - Kim Neil Irvine
- Faculty of Architecture & Planning, Rangsit Campus, Thammasat University, Khlong Nueng 12121, Thailand;
| | - David Lean
- Lean Environmental, Apsley, ON K0L1A0, Canada;
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11
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Khan MIR, Jahan B, AlAjmi MF, Rehman MT, Iqbal N, Irfan M, Sehar Z, Khan NA. Crosstalk of plant growth regulators protects photosynthetic performance from arsenic damage by modulating defense systems in rice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 222:112535. [PMID: 34325203 DOI: 10.1016/j.ecoenv.2021.112535] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 07/08/2021] [Accepted: 07/16/2021] [Indexed: 05/25/2023]
Abstract
Salicylic acid (SA) is a well-known plant growth regulator, which participates in many physiological processes of plants under normal and stressful conditions. In this study, we investigated the impact of SA supplementation on the components of ascorbate-glutathione cycle and glyoxalase system, photosynthesis and growth of rice (Oryza sativa) plants subjected to arsenic (As) stress. Plants grown with As exhibited enhanced As uptake, increased oxidative stress, and photosynthesis and growth inhibition. Application of SA promoted photosynthesis and growth in plants with or without As stress by improving plant defense systems and reducing oxidative stress through interaction with ethylene and nitric oxide (NO). SA acted as an ethylene antagonist, reducing stress ethylene formation under As stress, while NO formation was induced. This resulted in coordinated control over the antioxidant defense systems and enhanced As tolerance, protecting photosynthesis and growth from As-induced damage. The study showed that positive responses of SA in promoting photosynthesis and growth under As stress were the result of its interplay with ethylene and NO, enhanced capacity of defense systems to reduce oxidative stress. The crosstalk of SA with ethylene and NO will be useful in augmenting the performance of rice plants under As stress.
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Affiliation(s)
| | - Badar Jahan
- Department of Botany, Aligarh Muslim University, Aligarh, U.P., India
| | - Mohamed F AlAjmi
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Md Tabish Rehman
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | | | - Mohammad Irfan
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, USA
| | - Zebus Sehar
- Department of Botany, Aligarh Muslim University, Aligarh, U.P., India
| | - Nafees A Khan
- Department of Botany, Aligarh Muslim University, Aligarh, U.P., India.
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12
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Sandil S, Óvári M, Dobosy P, Vetési V, Endrédi A, Takács A, Füzy A, Záray G. Effect of arsenic-contaminated irrigation water on growth and elemental composition of tomato and cabbage cultivated in three different soils, and related health risk assessment. ENVIRONMENTAL RESEARCH 2021; 197:111098. [PMID: 33826942 DOI: 10.1016/j.envres.2021.111098] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/19/2021] [Accepted: 03/26/2021] [Indexed: 06/12/2023]
Abstract
This study was carried out to determine the effect of arsenic on tomato and cabbage cultivated in sand, sandy silt, and silt soil, and irrigated with water containing arsenic at concentrations 0.05 and 0.2 mg/L. Increasing arsenic in irrigation water did not affect the photosynthetic machinery. The chlorophyll content index increased in case of all soils and was dependent on the soil nitrogen, phosphorous, and plant biomass. Arsenic concentrations of 0.05 and 0.2 mg/L did not display any phytotoxic symptoms other than reduction in biomass in some cases. In cabbage, arsenic treatment of 0.2 mg/L increased the overall plant biomass production, while in tomato there was a decrease in aerial part and fruit biomass. The biomass production of both plants treated with different concentrations of arsenic, in the three soils was in the following order: silt > sand > sandy silt. Increase of arsenic in the irrigation water resulted in increase in arsenic concentration in the root and aerial part of both plants, at the same cultivation parameters. But tomato fruits displayed a decrease in arsenic accumulation with higher arsenic treatment. In both plants, the arsenic concentration in the plant parts changed in the following order: root > aerial part > fruit. Cabbage accumulated approximately twenty-fold more arsenic in the edible part (0.10-0.25 mg/kg DW) as compared to tomato (0.006-0.011 mg/kg DW) and displayed a good correlation with soil extractable arsenic. When cabbage was cultivated in three different soils applying the same irrigation water, it accumulated arsenic in the following order: sand > sandy silt > silt (p < 0.001 at 0.05 mg/L and p < 0.01 at 0.2 mg/L arsenic treatment). In tomato, the difference in arsenic accumulation among different soil types was highly significant (p < 0.001) but the accumulation pattern varied with the arsenic treatment applied. Sandy soil with the lowest total soil arsenic (4.32 mg/kg) resulted in the highest arsenic concentration in both plants. Among all soils and plants, the transfer factors and bioaccumulation factors were higher in sandy soil, and in cabbage. The estimated daily intake and hazard quotient values for arsenic were lower than 1 in all cases, implying no non-cancerous health risks at the arsenic concentrations applied in our study. Among nutrients only P showed a slight decline with increasing arsenic concentration while all other elements (Mg, K, Ca, S, Si, Fe, Mn, Cu, Zn) did not display any significant changes.
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Affiliation(s)
- Sirat Sandil
- Cooperative Research Centre of Environmental Sciences, Eötvös Loránd University, Pázmány Péter Sétány 1/A, H-1117, Budapest, Hungary.
| | - Mihály Óvári
- Centre for Ecological Research, Danube Research Institute, Karolina út 29-31, H-1113, Budapest, Hungary.
| | - Péter Dobosy
- Centre for Ecological Research, Danube Research Institute, Karolina út 29-31, H-1113, Budapest, Hungary.
| | - Viktória Vetési
- Cooperative Research Centre of Environmental Sciences, Eötvös Loránd University, Pázmány Péter Sétány 1/A, H-1117, Budapest, Hungary.
| | - Anett Endrédi
- Centre for Ecological Research, Danube Research Institute, Karolina út 29-31, H-1113, Budapest, Hungary.
| | - Anita Takács
- Centre for Ecological Research, Danube Research Institute, Karolina út 29-31, H-1113, Budapest, Hungary.
| | - Anna Füzy
- Centre for Agricultural Research, Institute for Soil Sciences and Agricultural Chemistry, Herman Ottó út 15, H-1022, Budapest, Hungary.
| | - Gyula Záray
- Cooperative Research Centre of Environmental Sciences, Eötvös Loránd University, Pázmány Péter Sétány 1/A, H-1117, Budapest, Hungary; Centre for Ecological Research, Danube Research Institute, Karolina út 29-31, H-1113, Budapest, Hungary.
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13
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Zheng M, Li G, Hu Y, Nriagu J, Zama EF. Differing effects of inorganic and organic arsenic on uptake and distribution of multi-elements in Rice grain. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:7918-7928. [PMID: 33044695 DOI: 10.1007/s11356-020-11194-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 10/07/2020] [Indexed: 06/11/2023]
Abstract
Arsenic (As) pollution can lead to an element imbalance in rice. A hydroponic study was carried out to examine the influence of inorganic (arsenate) and organic (dimethylarsinic acid (DMA)) arsenic compounds on the concentration and distribution of iron (Fe), manganese (Mn), copper (Cu), zinc (Zn), nickel (Ni), carbon (C), nitrogen (N), and sulfur (S) in rice caryopsis at maturity using laser confocal microscopy and synchrotron X-ray fluorescence (SXRF). Results showed that treatments with inorganic (iAs) and organic (DMA) arsenic did not change the distribution characteristics of the above elements in rice grains. Fe, Mn, and iAs were mainly limited to the ventral ovular vascular trace, while Cu, Zn, and DMA extended into the endosperm. This implies that milling processes are likely to remove a majority of Fe, Mn, and iAs, but not Cu, Zn, and DMA. With regard to the average fluorescent intensity of the rice endosperm, iAs exposure caused significant reductions in Mn (53%), Fe (40%), Cu (27%), and Zn (74%) while DMA treatments decreased Mn (49%), Fe (37%), and Zn (21%). Compared with DMA, iAs exerted more influence on the reduction of these elements in rice caryopsis. In addition, the elemental analysis revealed a significant 12.7% increase for N and 8% reduction for S in DMA-treated rice caryopsis while a significant decrease of 24.0% for S in iAs-exposed rice caryopsis. These findings suggest that Cu, Zn, and S are more easily impacted by iAs, while N is mostly affected by DMA.
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Affiliation(s)
- Maozhong Zheng
- College of Ecology and Resource Engineering, Wuyi University, Wuyishan Shi, 354300, Fujian Province, China
- Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyishan, 354300, Fujian, China
- CAS Key Lab of Urban Environment and Health, Fujian Key Lab of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Gang Li
- CAS Key Lab of Urban Environment and Health, Fujian Key Lab of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
- Zhejiang Key Lab of Urban Environmental Processes and Pollution Control, Ningbo Urban Environmental Observatory and Research Station, Institute of Urban Environment, Chinese Academy of Science, Ningbo, 361021, China.
| | - Yongle Hu
- College of Ecology and Resource Engineering, Wuyi University, Wuyishan Shi, 354300, Fujian Province, China
- Fujian Provincial Key Laboratory of Eco-Industrial Green Technology, Wuyishan, 354300, Fujian, China
| | - Jerome Nriagu
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, 109 Observatory Street, Ann Arbor, MI, 48109-2029, USA
| | - Eric Fru Zama
- CAS Key Lab of Urban Environment and Health, Fujian Key Lab of Watershed Ecology, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
- Zhejiang Key Lab of Urban Environmental Processes and Pollution Control, Ningbo Urban Environmental Observatory and Research Station, Institute of Urban Environment, Chinese Academy of Science, Ningbo, 361021, China
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14
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Geochemical variability in the soils of Bangladesh as affected by sources of irrigation water and inundation land types. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04269-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
AbstractPaddy soils in Bangladesh experience extensive irrigation with groundwater and surface water, both having variable geochemical constituents. The soils also have topological variations across the landscape. To understand the geochemical variability in the soils as affected by the different sources of irrigation water and the topographical variability, cultivation zones of paddy soils irrigated with both groundwater (n = 904) and surface water (n = 281) across Bangladesh were sampled and analyzed for a suit of seventeen geochemical elements. This study also assessed the extent and distribution of arsenic and the other geochemical elements in the paddy soils (n = 1209) as well as in a set of neighboring non-paddy soils (n = 235) within the different inundation land types (highland, medium highland-1, medium highland-2, medium lowland, lowland and very lowland) of Bangladesh. The mean concentrations of aluminum (26,000 mg/kg), cobalt (13 mg/kg), copper (32 mg/kg), iron (28,250 mg/kg), lead (18 mg/kg), magnesium (8050 mg/kg), molybdenum (1.02 mg/kg), nickel (41 mg/kg), potassium (4870 mg/kg), sodium (750 mg/kg) and zinc (70 mg/kg) in the surface water-irrigated paddy soils were found to be significantly (0.001 ≥ p ≤ 0.05) higher compared to the concentrations in the soils irrigated with groundwater (23,400; 12; 28; 25,650; 17; 7000; 0.96; 36; 4350; 600; and 62 mg/kg, respectively). Therefore, surface water used for paddy irrigation could increase the inputs of a number of toxic elements in the paddy soils having potential risk of crop contamination. Arsenic in the paddy and non-paddy soils varied significantly (F = 24.74, p < 0.001 and F = 3.42, p < 0.01, respectively) within the inundation land types, the very lowland (9.95 and 6.72 mg/kg, respectively) and lowland (8.33 and 5.20 mg/kg, respectively) having the highest mean arsenic concentrations and the medium highland-1 (5.27 and 5.17 mg/kg, respectively) having the lowest. The concentrations of the other geochemical elements analyzed were also observed to be higher, in general, in the soils of very lowland and lowland. Since the low-level lands are predominantly used for paddy cultivation, higher concentrations of various toxic elements, particularly arsenic, in such soils pose an increased risk of rice toxicity in Bangladesh. The results of this study present an inimitable geochemical database for the surface soils across Bangladesh which can be used in any future studies on the geomorphologically variable agricultural and non-agricultural Bangladeshi soils, providing a basis for environmental pollution assessment and sustainable mitigation approaches.
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Chowdhury NR, Das A, Mukherjee M, Swain S, Joardar M, De A, Mridha D, Roychowdhury T. Monsoonal paddy cultivation with phase-wise arsenic distribution in exposed and control sites of West Bengal, alongside its assimilation in rice grain. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123206. [PMID: 32593938 DOI: 10.1016/j.jhazmat.2020.123206] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 05/29/2020] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
The present study mainly deals with monsoonal paddy farming with respect to its phase-wise arsenic (As) accumulation and distribution throughout cultivation in As exposed sites and control areas of West Bengal for two consecutive years, 2017 and 2018. Arsenic uptake in paddy depends on the watering pattern with the help of groundwater (Madhusudhankati: 171 μg/l, Teghoria: 493 μg/l in Gaighata and Pingla: 10 μg/l in Medinipur), soil As phase-wise movement with its enrichment pattern and the variation of rainfall. Arsenic mobility is the highest in root and decreases with height of a plant. However, the synergistic effect of groundwater and rainwater makes a diffused approach to the nature of As flow in plants, because rainwater has a pivotal role in diluting the As content available for translocation. Reproductive phase accumulates maximum As compared to vegetative and ripening phases. Sequential extraction and SEM studies re-confirm no possibility of iron (Fe) plaque formation in root soils which sequestered As. Finally, we conclude that monsoonal cultivation provides least As enriched grain (exposed area: 350 μg/kg, control area: 224 μg/kg) irrespective of the variety of cultivar and area of cultivation, which amounts to one-third of pre-monsoonal grain (1120 μg/kg) and so, it is much safer for consumption with respect to As and micro-nutrient status.
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Affiliation(s)
| | - Antara Das
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Meenakshi Mukherjee
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Shresthashree Swain
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Madhurima Joardar
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Ayan De
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Deepanjan Mridha
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India
| | - Tarit Roychowdhury
- School of Environmental Studies, Jadavpur University, Kolkata, 700032, India.
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16
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Zhang T, Li L, Xu F, Chen X, Du L, Li Y. Assessing the environmental risk, fractions, and remobilization of copper and zinc in the sediments of the Jialing River-an important tributary of the Yangtze River in China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:39283-39296. [PMID: 32648220 DOI: 10.1007/s11356-020-09963-y] [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: 03/11/2020] [Accepted: 06/30/2020] [Indexed: 06/11/2023]
Abstract
Copper (Cu) and zinc (Zn) are two heavy metal pollutants that pose a serious risk in the Jialing River. Cu and Zn are transported into the sediment primarily due to the activities of the mining and smelting industries. In this study, we employed the diffusive gradient in thin films (DGT) technique, sequential extraction, and two assessment methods to evaluate the remobilization, fractions, and environmental risk in the downstream section of the Jialing River. The total concentrations of Cu and Zn in the four study areas followed the order S3 > S2 > S4 > S1, and the assessment results indicated that Cu and Zn presented a low environmental risk in the study area. Cu and Zn were primarily bound to the Fe/Mn oxide fraction (F2) and the residual fraction (F4). The results of the DGT probe showed a clear vertical distribution of Cu and Zn in the sediment (from 3 to - 12 cm), and both elements showed obvious increasing trends at the bottom of the probe. The correlation analysis indicated that CDGT-Cu correlated well with CDGT-Zn (r = 0.834, p < 0.01). The flux results showed that the sediment in the downstream section of the Jialing River is a major source of Cu and Zn and that there is a potential risk of release to the overlying water. Further analysis found that CDGT-Fe was negatively correlated with CDGT-Cu and CDGT-Zn, indicating that Fe may influence the remobilization of these metals. In addition, a hotspot of CDGT-Cu and CDGT-Zn at the bottom of the probe corresponded with a dark area in the AgI gel measuring CDGT-S. These results indicate that Fe and S are factors that mitigate the release of Cu and Zn from sediments.
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Affiliation(s)
- Tuo Zhang
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China.
| | - Lijuan Li
- Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agriculture Sciences, Beijing, 100081, China
| | - Fei Xu
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China
| | - Xiangyu Chen
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China
| | - Li Du
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China
| | - Yunxiang Li
- College of Environmental Science & Engineering, China West Normal University, Nanchong, 637009, Sichuan, China
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17
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Chowdhury NR, Das A, Joardar M, De A, Mridha D, Das R, Rahman MM, Roychowdhury T. Flow of arsenic between rice grain and water: Its interaction, accumulation and distribution in different fractions of cooked rice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 731:138937. [PMID: 32402904 DOI: 10.1016/j.scitotenv.2020.138937] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 04/21/2020] [Accepted: 04/21/2020] [Indexed: 05/19/2023]
Abstract
Arsenic (As) contaminated water is a major threat to human health when used for drinking, cooking and irrigational purposes. Rice being consumed by 50% of the world's population, supplies considerable amount of As to the human body. Our study provides a detailed understanding of As distribution in each fraction of rice while cooking (viz. uncooked rice, cooking water, cooked rice and gruel/total discarded water), ultimately leading to a better explanation of As movement between rice grain and water. A significant decrease of As was observed in cooked rice (34-89% and 23-84% for sunned and parboiled rice respectively) when cooked with low-As containing water, <3 μg/l and moderate As-contaminated water, 36-58 μg/l (3-50% and 12-61% for sunned and parboiled rice respectively) with increasing selenium (Se) concentration. Movement of As from water to rice grain has been inferred with increasing water As (84-105 μg/l), which results in a significant increase of As in cooked rice (24-337% and 114% for sunned and parboiled rice, respectively) with decreasing Se concentration. Arsenic speciation study emphasizes the fact of similar reduction percentage of As (III), As (V) and total As in wet cooked rice when cooked with low-As containing water. The SAMOE value in 'risk thermometer' supports the higher risk of suffering from wet cooked rice (class 4) with increasing cooking water As concentration (class 3 to class 5).
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Affiliation(s)
| | - Antara Das
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
| | - Madhurima Joardar
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
| | - Ayan De
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
| | - Deepanjan Mridha
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India
| | - Reshmi Das
- Earth Observatory of Singapore, Nanyang Technological University, Singapore 639798, Singapore
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), Faculty of Science, The University of Newcastle, Australia
| | - Tarit Roychowdhury
- School of Environmental Studies, Jadavpur University, Kolkata 700032, India.
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Dwivedi S, Kumar A, Mishra S, Sharma P, Sinam G, Bahadur L, Goyal V, Jain N, Tripathi RD. Orthosilicic acid (OSA) reduced grain arsenic accumulation and enhanced yield by modulating the level of trace element, antioxidants, and thiols in rice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:24025-24038. [PMID: 32301095 DOI: 10.1007/s11356-020-08663-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Arsenic (As), a toxic metalloid, is finding its route to human through intake of As-contaminated water and consumption of food grown on contaminated soil. Rice is the most As-affected crop. Present study is aimed to assess the impact of stabilized orthosilicic acid (a proprietary formulation for plant-available silicon (Si) and earlier used as fertilizer for rice to enhance growth and yield) in reducing the accumulation of As in rice grains. Application of arsenic in the form of arsenate (AsV) and arsenite (AsIII) significantly affected plant growth in a dose-dependent manner. Higher doses of AsV and AsIII (50 and 25 mg L-1 respectively) significantly decreased the yield attributes leading to lower yield. A significant accumulation of As in grain was observed in both AsV- and AsIII-exposed plants in a dose-dependent manner. Arsenic exposure also increased the level of Si in rice grains. Application of Si, either in soil or on leaves (foliar), greatly reduced grain As accumulation (up to 67% in AsV and 78% in AsIII) and enhanced the growth and yield of plants under As stress. The level of thiols and activities of antioxidant enzymes were also enhanced under Si application. Foliar Si application was more effective in increasing grain Si level and reducing grain As than soil Si. The level of other trace elements was also significantly enhanced by Si application irrespective of the presence or absence of As in comparison with control. Arsenic exposure constrained some of the trace elements, such as Zn and Co, which were restored by Si application. Results of the present study showed that the application of currently used Si formulation may effectively reduce grain As level even in highly As-contaminated soil and improve grain quality of rice.
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Affiliation(s)
- Sanjay Dwivedi
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Amit Kumar
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Seema Mishra
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India.
- Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur, 273009, India.
| | - Pragya Sharma
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Geetgovind Sinam
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Lal Bahadur
- Soil Science Laboratory, CSIR-National Botanical Research Institute, Lucknow, 226001, India
| | - Vinod Goyal
- Privi Life Science Private Limited, Mumbai, India
| | - Neeru Jain
- Privi Life Science Private Limited, Mumbai, India
| | - Rudra Deo Tripathi
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Lucknow, 226001, India.
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Kaur J, Anand V, Srivastava S, Bist V, Tripathi P, Naseem M, Nand S, Khare P, Srivastava PK, Bisht S, Srivastava S. Yeast strain Debaryomyces hansenii for amelioration of arsenic stress in rice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 195:110480. [PMID: 32203774 DOI: 10.1016/j.ecoenv.2020.110480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 03/11/2020] [Accepted: 03/13/2020] [Indexed: 06/10/2023]
Abstract
Arsenic (As) is a serious threat for environment and human health. Rice, the main staple crop is more prone to As uptake. Bioremediation strategies with heavy metal tolerant rhizobacteria are well known. The main objective of the study was to characterize arsenic-resistant yeast strains, capable of mitigating arsenic stress in rice. Three yeast strains identified as Debaryomyces hansenii (NBRI-Sh2.11), Candida tropicalis (NBRI-B3.4) and Candida dubliniensis (NBRI-3.5) were found to have As reductase activity. D. hansenii with higher As tolerance has As expulsion ability as compared to other two strains. Inoculation of D. hansenii showed improved detoxification through scavenging of reactive oxygen species (ROS) by the modulation of SOD and APX activity under As stress condition in rice. Modulation of defense responsive gene (NADPH, GST, GR) along with arsR and metal cation transporter are the probable mechanism of As detoxification as evident with improved membrane (electrolyte leakage) stability. Reduced grain As (~40% reduction) due to interaction with D. hansenii (NBRI-Sh2.11) further validated it's As mitigation property in rice. To the best of our knowledge D. hansenii has been reported for the first time for arsenic stress mitigation in rice with improved growth and nutrient status of the plant.
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Affiliation(s)
- Jasvinder Kaur
- Division of Microbial Technology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226 001, India
| | - Vandana Anand
- Division of Microbial Technology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226 001, India; Academy of Scientific and Innovative Research, AcSIR, Ghaziabad, 201002, India
| | - Sonal Srivastava
- Division of Microbial Technology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226 001, India; Academy of Scientific and Innovative Research, AcSIR, Ghaziabad, 201002, India
| | - Vidisha Bist
- Division of Microbial Technology, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226 001, India; Academy of Scientific and Innovative Research, AcSIR, Ghaziabad, 201002, India
| | | | - Mariya Naseem
- Environmental Technology Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226 001, India
| | - Sampurna Nand
- Environmental Technology Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226 001, India
| | - Puja Khare
- Chemistry Division, CSIR-CIMAP, Lucknow, India
| | | | - Saraswati Bisht
- Department of Botany, Kumaun University, Nainital, 263002, India
| | - Suchi Srivastava
- Academy of Scientific and Innovative Research, AcSIR, Ghaziabad, 201002, India.
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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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Halder D, Saha JK, Biswas A. Accumulation of essential and non-essential trace elements in rice grain: Possible health impacts on rice consumers in West Bengal, India. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 706:135944. [PMID: 31841839 DOI: 10.1016/j.scitotenv.2019.135944] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/19/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
Rice is the major staple food to the population in rural West Bengal, India and Bangladesh. Depletion and excess accumulation of different trace elements, which are essential and non-essential to the human body, in rice can have a detrimental impact on the rice consumer. Therefore, this study has investigated the accumulation of different trace elements in rice consumed in rural households in West Bengal. The mean concentration (mg kg-1) of essential elements in rice follows the order of Fe (39.4) > Zn (9.79) > Mn (4.40) > Cu (3.26) > Se (0.28) > Co (0.03), while this order for non-essential elements is Pb (1.70) > As (0.34) > Ni (0.22) > Cd (0.04). In general, accumulation in rice is higher for elements that show higher mobility under reducing conditions (e.g. Fe, Mn, As, etc.) compared to elements with lower mobility under such conditions (e.g. Se, Cd, etc.). These orders of accumulation can be attributed to the irrigation practice of continuous flooding of the soil during rice cultivation and the abundance of these elements in the paddy soil itself. By combining these analytical results to the data obtained from questionnaire survey it is estimated that rice consumption can be either enough or a major source to fulfill the daily requirement of Fe, Cu, Se, Mn, and Zn necessary for different physiological functions in the human body for the population in rural Bengal. At the same time, it can be a potential route of As, Cd, Ni, and Pb exposure to develop their non-carcinogenic and carcinogenic health effects among the population. This study highlights that attempts should be made to reduce the accumulation of other non-essential elements together with As in rice grain to ensure the health safety of the people who rarely get a balanced diet and relay on rice consumption to meet the daily calorific intake in rural Bengal.
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Affiliation(s)
- Dipti Halder
- Division of Environmental Soil Science, Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, Madhya Pradesh, India.
| | - Jayanta Kumar Saha
- Division of Environmental Soil Science, Indian Institute of Soil Science, Nabibagh, Berasia Road, Bhopal, Madhya Pradesh, India
| | - Ashis Biswas
- Environmental Geochemistry Laboratory, Department of Earth and Environmental Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri, Madhya Pradesh 462066, India
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Yao B, Chen P, Sun G. Distribution of elements and their correlation in bran, polished rice, and whole grain. Food Sci Nutr 2020; 8:982-992. [PMID: 32185023 PMCID: PMC7075078 DOI: 10.1002/fsn3.1379] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 11/27/2019] [Accepted: 12/03/2019] [Indexed: 11/12/2022] Open
Abstract
The relationship of toxic elements (As, Cd, Cr) and trace elements (Cu, Se, Ni, Zn, Mn) in rice bran and corresponding polished rice is not well known. A total of 446 rice grains were collected from paddy fields distributed across China, and the concentrations of 8 elements in rice bran and their corresponding polished rice were measured. The levels of As, Cd, Cr, and Se have a good linear relationship between rice bran and polished rice (R 2: .79, .97, .82, .99, respectively; all p < .001). Polishing rice could effectively remove the average contents of 44.4% As, 19.8% Cd, and 15.4% Cr in the whole grain, but caused the substantial losses of more than half of Mn and Ni (57.7% and 56.9%), and nearly one-third (30.9%, 31.5%, and 29.1%) of Cu, Se, and Zn in brown rice although only about 10% of rice bran was milled. The "L" type correlation exists not only between As and Cd, but also between the nutrients Se, Mn, Ni, and the toxic elements As, Cd. These results indicated that As accumulation in rice could reduce the levels of essential mineral nutrients Mn, Ni, and Se. On the contrary, improving nutrient elements by fertilization could decrease the accumulation of some toxic elements. This provides a practical new idea for the prevention and control of rice As or Cd, and concomitantly improves the deficiency of nutrient elements in rice.
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Affiliation(s)
- Bao‐Min Yao
- State Key Laboratory of Urban and Regional EcologyResearch Center for Eco‐Environmental SciencesThe Chinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Peng Chen
- State Key Laboratory of Urban and Regional EcologyResearch Center for Eco‐Environmental SciencesThe Chinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
| | - Guo‐Xin Sun
- State Key Laboratory of Urban and Regional EcologyResearch Center for Eco‐Environmental SciencesThe Chinese Academy of SciencesBeijingChina
- University of Chinese Academy of SciencesBeijingChina
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23
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Shrivastava A, Barla A, Majumdar A, Singh S, Bose S. Arsenic mitigation in rice grain loading via alternative irrigation by proposed water management practices. CHEMOSPHERE 2020; 238:124988. [PMID: 31645266 DOI: 10.1016/j.chemosphere.2019.124988] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 09/24/2019] [Accepted: 09/26/2019] [Indexed: 06/10/2023]
Abstract
Over the past three decades, the occurrence of high concentrations of arsenic (As) in drinking-water and its subsequent poisoning in rice has been recognized as a major public-health concern globally, especially in Ganga Delta Plain with more than 80 million peoples in serious As exposure far beyond than its allowable limit. An extensive field study was conducted for consecutive four years viz. 2013 to 2016, introducing a process of intermittent irrigation pattern comparing to the conventional practice of rice cultivation in India. The practice provides a combination of aerobic and anaerobic irrigation resulting better rice productivity with lesser arsenic mobility and accumulation in rice grains. This present research finding clearly points out to the marked reduction of arsenic load from average 1.6 mg/kg to 0.5 mg/kg in rice grain, much closer to FAO/WHO prescribed safe limit and in the continuous practice of proposed agricultural strategy resulting in a gradual decrease of 15% bioavailable arsenic in each year. Total productivity (in kg/hectare) also increased by 540 kg/year in boro and 340 kg/year in amon subsequently achieving the prescribed safe limit of As in grain.
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Affiliation(s)
- Anamika Shrivastava
- Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, India, 741246
| | - Anil Barla
- Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, India, 741246
| | - Arnab Majumdar
- Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, India, 741246
| | - Surjit Singh
- Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, India, 741246
| | - Sutapa Bose
- Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, West Bengal, India, 741246.
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24
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Wang X, Huang R, Li L, He S, Yan L, Wang H, Wu X, Yin Y, Xing B. Arsenic removal from flooded paddy soil with spontaneous hygrophyte markedly attenuates rice grain arsenic. ENVIRONMENT INTERNATIONAL 2019; 133:105159. [PMID: 31521815 DOI: 10.1016/j.envint.2019.105159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/06/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
China ranks the top in global annual rice output. However, extensive mining and smelting has led to elevated arsenic (As) in paddy soils, potentially imperiling local population health and sustainable rice production in the country. Under flooded condition, reductive As mobilization generally occurs, providing a unique advantage for soil As removal. In this study, we explore the depletion magnitude of labile As from paddy soils through cycling of flooding-drainage with three distinct co-strategies, i.e. (1) no soil disturbance with spontaneously established hygrophyte plants, (2) selective fertilization to enhance soil As release, and (3) soil ploughing following each drainage. After 151 days of flooding with periodic drainage, diffusive gradients in thin film (DGT)-labile As through 0-14 cm soil profile with hygrophyte plants growing decreased from initial 292 μg l-1 to well below the required threshold level (57-77 μg l-1) for safe rice production. Correspondingly, an average of 22.9% of total soil As was removed, with up to 76.7% of As bound to amorphous Fe hydroxides being stripped in this treatment. In the following rice cultivation, inorganic As in the polished rice from the naturally vegetated treatment (0.15 mg kg-1) fell successfully below the Chinese food safety standard (0.2 mg kg-1). The results highlight that As removal from paddy soils with native hygrophyte under shallow flooded condition can decrease soil bioavailable As specifically to safe levels within a relatively short period, and thus provides a novel and quite cost-effective pathway securing rice production.
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Affiliation(s)
- Xin Wang
- College of Resources and Environmental Science, Hunan Normal University, Changsha, Hunan 410081, China.
| | - Rui Huang
- College of Resources and Environmental Science, Hunan Normal University, Changsha, Hunan 410081, China
| | - Liang Li
- College of Resources and Environmental Science, Hunan Normal University, Changsha, Hunan 410081, China
| | - Sixue He
- College of Resources and Environmental Science, Hunan Normal University, Changsha, Hunan 410081, China
| | - Lu Yan
- College of Resources and Environmental Science, Hunan Normal University, Changsha, Hunan 410081, China
| | - Hao Wang
- College of Resources and Environmental Science, Hunan Normal University, Changsha, Hunan 410081, China
| | - Xin Wu
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, Hunan 410125, China
| | - Yulong Yin
- Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, Hunan 410125, China; National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, Hunan 410125, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA.
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25
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Li J, Zhao Q, Xue B, Wu H, Song G, Zhang X. Arsenic and nutrient absorption characteristics and antioxidant response in different leaves of two ryegrass (Lolium perenne) species under arsenic stress. PLoS One 2019; 14:e0225373. [PMID: 31774844 PMCID: PMC6881006 DOI: 10.1371/journal.pone.0225373] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 11/03/2019] [Indexed: 11/18/2022] Open
Abstract
Arsenic (As), a heavy metal element, causes soil environmental concerns in many parts of the world, and ryegrass has been considered as an effective plant species for bioremediation of heavy metal pollution including As. This study was designed to investigate As content, nutrient absorption and antioxidant enzyme activity associated with As tolerance in the mature leaves, expanded leaves and emerging leaves of perennial ryegrass (Lolium perenne) and annual ryegrass (Lolium multiflorum) under 100 mg·kg-1 As treatment. The contents of As, calcium (Ca), magnesium (Mg), manganese (Mn) in the leaves of both ryegrass species were greatest in the mature leaves and least in the emerging leaves. The nitrogen (N), phosphorus (P), potassium (K) contents of both ryegrass species were greatest in the emerging leaves and least in the mature leaves. The As treatment reduced biomass more in the mature leaves and expanded leaves relative to the emerging leaves for annual ryegrass and reduced more in emerging leaves relative to the mature and expanded leaves for perennial ryegrass. Perennial ryegrass had higher As content than annual ryegrass in all three kinds of leaves. The As treatment increased hydrogen peroxide (H2O2) in expanded leaves of two ryegrass species, relative to the control. The As treatment increased the ascorbate peroxidase (APX) activity in the expanded leaves of perennial ryegrass and the mature leaves of annual ryegrass, the catalase (CAT) activity in the mature and expanded leaves of perennial ryegrass and the emerging leaves of annual ryegrass, relative to the control. The As treatment reduced peroxidase (POD) activity in all three kinds of leaves of annual ryegrass and superoxide dismutase (SOD) activity in expanded leaves of perennial ryegrass, relative to the control. The results of this study suggest that As tolerance may vary among different ages of leaf and reactive oxygen species (ROS) and antioxidant enzyme activity may be associated with As tolerance in the ryegrass.
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Affiliation(s)
- Jinbo Li
- Institute of Turfgrass Science, Beijing Forestry University, Beijing, China
| | - Qian Zhao
- Institute of Turfgrass Science, Beijing Forestry University, Beijing, China
| | - Bohan Xue
- Institute of Turfgrass Science, Beijing Forestry University, Beijing, China
| | - Hongyan Wu
- Institute of Turfgrass Science, Beijing Forestry University, Beijing, China
| | - Guilong Song
- Institute of Turfgrass Science, Beijing Forestry University, Beijing, China
| | - Xunzhong Zhang
- School of Plant and Environmental Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America
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26
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Wang Y, Shi C, Lv K, Li Y, Cheng J, Chen X, Fang X, Yu X. Genotypic Variation in Nickel Accumulation and Translocation and Its Relationships with Silicon, Phosphorus, Iron, and Manganese among 72 Major Rice Cultivars from Jiangsu Province, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16183281. [PMID: 31500133 PMCID: PMC6765936 DOI: 10.3390/ijerph16183281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 11/22/2022]
Abstract
Nickel (Ni) is a ubiquitous environmental toxicant and carcinogen, and rice is a major dietary source of Ni for the Chinese population. Recently, strategies to decrease Ni accumulation in rice have received considerable attention. This study investigated the variation in Ni accumulation and translocation, and also multi-element (silicon (Si), phosphorus (P), iron (Fe), and manganese (Mn)) uptake and transport among 72 rice cultivars from Jiangsu Province, China, that were grown under hydroponic conditions. Our results showed a 2.2-, 4.2-, and 5.3-fold variation in shoot Ni concentrations, root Ni concentrations, and translocation factors (TFs) among cultivars, respectively. This suggests that Ni accumulation and translocation are significantly influenced by the genotypes of the different rice cultivars. Redundancy analysis of the 72 cultivars revealed that the uptake and transport of Ni were more similar to those of Si and Fe than to those of P and Mn. The Ni TFs of high-Ni cultivars were significantly greater than those of low-Ni cultivars (p < 0.001). However, there were no significant differences in root Ni concentrations of low-Ni and high-Ni cultivars, suggesting that high-Ni cultivars could translocate Ni to shoots more effectively than low-Ni cultivars. In addition, the cultivars HD8 and YD8 exhibited significantly lower levels of Ni accumulation than their parents (p < 0.05). Our results suggest that breeding can be an effective strategy for mitigating excessive Ni accumulation in rice grown in Ni-contaminated environments.
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Affiliation(s)
- Ya Wang
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China.
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Chengqiao Shi
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China.
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Kang Lv
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China.
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Youqing Li
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China.
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Jinjin Cheng
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China.
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Xiaolong Chen
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China.
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Xianwen Fang
- National Crop Germplasm Resources Infrastructure (Jiangsu), Ministry of Science and Technology, Nanjing 210014, China.
| | - Xiangyang Yu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing 210014, China.
- Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
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Murphy T, Irvine K, Phan K, Lean D, Wilson K. Environmental and Health Implications of the Correlation Between Arsenic and Zinc Levels in Rice from an Arsenic-Rich Zone in Cambodia. J Health Pollut 2019; 9:190603. [PMID: 31259079 PMCID: PMC6555249 DOI: 10.5696/2156-9614-9.22.190603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Accepted: 04/01/2019] [Indexed: 04/29/2023]
Abstract
BACKGROUND In parts of Cambodia, irrigation of rice with groundwater results in arsenic accumulation in soils and rice, leading to health concerns associated with rice consumption. In Bangladesh and China, low zinc levels in rice have been found in regions where arsenic levels in rice are high. Furthermore, there have been claims that zinc deficiency is responsible for stunting of children in Cambodia. There are limited data on zinc in Cambodian rice, but in rural Asia, rice is the major source of zinc. OBJECTIVES To provide a preliminary evaluation of the zinc content in rice grain in Preak Russey, an area with elevated levels of arsenic. The importance of zinc in rice for infants was also assessed. METHODS Rice cultivation was evaluated in sixty farms along the Mekong River in Cambodia. Analyses for metals, total arsenic, and arsenic species in the water and rice were conducted at the University of Ottawa, Canada by inductively coupled plasma - mass spectrometry. Analysis of total zinc and arsenic in soils were analyzed in Phnom Penh using X-ray fluorescence spectrometry (XRF). Total zinc in rice was also measured by XRF analysis. RESULTS Rice in the Preak Russey area contained zinc with ½ to ¼ of the 1987 Codex standard for rice in Infant Formula. Moreover, our average zinc concentration in rice samples was less than a third that recommended for zinc fortification in rice by the United Nations World Food Programme. There was a significant (α=0.05) negative correlation between the arsenic and zinc content of rice with the lowest zinc levels occurring near the irrigation wells, the source of arsenic. There was a significantly higher content of zinc in rice from farms that fertilized with cow manure. CONCLUSIONS Handheld XRF spectrometers are useful tools for detection of zinc levels in rice. The potential for zinc deficiency in farmers in areas of Cambodia with arsenic toxicity is high. COMPETING INTERESTS The authors declare no competing financial interests.
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Affiliation(s)
- Tom Murphy
- International University, Phnom Penh, Cambodia
| | - Kim Irvine
- Nanyang Technological University, Singapore
| | | | - David Lean
- Lean Environmental, Apsley, Ontario, Canada
| | - Ken Wilson
- Texas State University, San Marcos, Texas, USA
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Kumarathilaka P, Seneweera S, Meharg A, Bundschuh J. Arsenic accumulation in rice (Oryza sativa L.) is influenced by environment and genetic factors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 642:485-496. [PMID: 29908507 DOI: 10.1016/j.scitotenv.2018.06.030] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 05/28/2018] [Accepted: 06/03/2018] [Indexed: 05/28/2023]
Abstract
Arsenic (As) elevation in paddy soils will have a negative impact on both the yield and grain quality of rice (Oryza sativa L.). The mechanistic understanding of As uptake, translocation, and grain filling is an important aspect to produce rice grains with low As concentrations through agronomical, physico-chemical, and breeding approaches. A range of factors (i.e. physico-chemical, biological, and environmental) govern the speciation and mobility of As in paddy soil-water systems. Major As uptake transporters in rice roots, such as phosphate and aquaglyceroporins, assimilate both inorganic (As(III) and As(V)) and organic As (DMA(V) and MMA(V)) species from the rice rhizosphere. A number of metabolic pathways (i.e. As (V) reduction, As(III) efflux, and As(III)-thiol complexation and subsequent sequestration) are likely to play a key role in determining the translocation and substantial accumulation of As species in rice tissues. The order of translocation efficiency (caryopsis-to-root) for different As species in rice plants is comprehensively evaluated as follows: DMA(V) > MMA(V) > inorganic As species. The loading patterns of both inorganic and organic As species into the rice grains are largely dependent on the genetic makeup and maturity stage of the rice plants together with environmental interactions. The knowledge of As metabolism in rice plants and how it is affected by plant genetics and environmental factors would pave the way to develop adaptive strategies to minimize the accumulation of As in rice grains.
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Affiliation(s)
- Prasanna Kumarathilaka
- School of Civil Engineering and Surveying, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, Queensland 4350, Australia
| | - Saman Seneweera
- Center for Crop Health, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, Queensland 4350, Australia
| | - Andrew Meharg
- Queen's University Belfast, Institute for Global Food Security, David Keir Building, Malone Road, Belfast BT9 5BN, United Kingdom
| | - Jochen Bundschuh
- School of Civil Engineering and Surveying, Faculty of Health, Engineering and Sciences, University of Southern Queensland, West Street, Toowoomba, Queensland 4350, Australia; UNESCO Chair on Groundwater Arsenic within the 2030 Agenda for Sustainable Development University of Southern Queensland, West Street, Toowoomba, Queensland 4350, Australia.
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29
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Moulick D, Santra SC, Ghosh D. Seed priming with Se mitigates As-induced phytotoxicity in rice seedlings by enhancing essential micronutrient uptake and translocation and reducing As translocation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:26978-26991. [PMID: 30008167 DOI: 10.1007/s11356-018-2711-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 07/04/2018] [Indexed: 05/03/2023]
Abstract
We laid down this investigation to explore the promotive and antagonistic aspect of selenium (Se) when supplemented through seed priming technology in rice before sowing into arsenic (As) free and As spiked soil. Findings suggest that As stress inhibits germination (35.38%), seedling growth (38.19%), chlorophyll content by 42.31%, and reduced translocation of iron, zinc, manganese by 19.40, 17.33, and 18.40% respectively, in the seedlings of unprimed seeds. Seedlings of unprimed seeds also had greater As translocation into the aerial part beside repressing micronutrient translocation, significantly. On the contrary, Se-primed seeds had higher germination (27.82%), longer root length (20.14%), greater chlorophyll content beside having greater translocation of iron, zinc, manganese in shoots along with restricting As translocation in rice seedlings by confining more As in the root, in a significant manner (p < 0.05 level) than the unprimed seedlings grown in identical stress. On the other hand, seedlings of Se-primed seeds grown alike the control also had higher germination % (7.08%), root and shoot length with significantly less proline, and hydrogen peroxide content in root and shoot. Findings indicate that seed priming with Se executes dual role, a growth promoting and antagonism in a more practical and farmer-friendly way to mitigate As-induced toxicity and enhance growth in rice seedlings.
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Affiliation(s)
- Debojyoti Moulick
- Department of Environmental Science, University of Kalyani, Kalyani, West Bengal, India.
| | - Subhas Chandra Santra
- Department of Environmental Science, University of Kalyani, Kalyani, West Bengal, India
| | - Dibakar Ghosh
- ICAR-Directorate of Weed Research, Jabalpur, Madhya Pradesh, India
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Skalnaya MG, Jaiswal SK, Prakash R, Prakash NT, Grabeklis AR, Zhegalova IV, Zhang F, Guo X, Tinkov AA, Skalny AV. The Level of Toxic Elements in Edible Crops from Seleniferous Area (Punjab, India). Biol Trace Elem Res 2018; 184:523-528. [PMID: 29222648 DOI: 10.1007/s12011-017-1216-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Accepted: 12/04/2017] [Indexed: 10/18/2022]
Abstract
The primary objective of the present study was to assess the level of selenium and toxic trace elements in wheat, rice, maize, and mustard from seleniferous areas of Punjab, India. The content of selenium (Se) and toxic trace elements, including aluminum (Al), arsenic (As), cadmium (Cd), mercury (Hg), nickel (Ni), lead (Pb), and tin (Sn), in crop samples was assessed using inductively coupled plasma mass-spectrometry after microwave digestion of the samples. The obtained data demonstrate that cultivation of crops on seleniferous soils significantly increased Se level in wheat, mustard, rice, and maize by a factor of more than 590, 111, 85, and 64, respectively. The study also showed that Se exposure affected toxic metal content in crops. In particular, Se-rich wheat was characterized by a significant decrease in Al, As, Ni, Pb, and Sn levels. The level of As, Cd, Ni, Pb, and Sn was significantly decreased in Se-rich rice, whereas As content was increased. In turn, the decrease in Al, As, Cd, Ni, Pb, and Sn levels in Se-rich maize was associated with a significant elevation of Hg content. Finally, Se-rich mustard was characterized by a significant increase in Al, As, and Hg levels, while the content of Ni, Pb, and Sn was significantly lower than the control levels. These findings should be taken into account while developing the nutritional strategies for correction of Se status. At the same time, the exact mechanisms underlying the observed differences are to be estimated.
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Affiliation(s)
- Margarita G Skalnaya
- Yaroslavl State University, Yaroslavl, 150000, Russia
- Peoples' Friendship University of Russia (RUDN University), Moscow, 105064, Russia
| | | | | | | | - Andrei R Grabeklis
- Yaroslavl State University, Yaroslavl, 150000, Russia
- Peoples' Friendship University of Russia (RUDN University), Moscow, 105064, Russia
| | - Irina V Zhegalova
- Peoples' Friendship University of Russia (RUDN University), Moscow, 105064, Russia
- I.M. Sechenov First Moscow State Medical University, Moscow, 119992, Russia
| | - Feng Zhang
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710000, People's Republic of China
| | - Xiong Guo
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710000, People's Republic of China
| | - Alexey A Tinkov
- Yaroslavl State University, Yaroslavl, 150000, Russia
- Peoples' Friendship University of Russia (RUDN University), Moscow, 105064, Russia
- Institute of Cellular and Intracellular Symbiosis, Russian Academy of Sciences, Orenburg, 460008, Russia
| | - Anatoly V Skalny
- Yaroslavl State University, Yaroslavl, 150000, Russia.
- Peoples' Friendship University of Russia (RUDN University), Moscow, 105064, Russia.
- Key Laboratory of Trace Elements and Endemic Diseases of National Health and Family Planning Commission, School of Public Health, Health Science Center, Xi'an Jiaotong University, Xi'an, 710000, People's Republic of China.
- Orenburg State University, Orenburg, 460352, Russia.
- Trace Element Institute for UNESCO, 69001, Lyon, France.
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Song Z, Shan B, Tang W. Evaluating the diffusive gradients in thin films technique for the prediction of metal bioaccumulation in plants grown in river sediments. JOURNAL OF HAZARDOUS MATERIALS 2018; 344:360-368. [PMID: 29080489 DOI: 10.1016/j.jhazmat.2017.10.049] [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: 06/27/2017] [Revised: 10/02/2017] [Accepted: 10/23/2017] [Indexed: 06/07/2023]
Abstract
The diffusive gradients in thin films (DGT) technique is a useful tool for assessing metal bioavailability in sediments. However, the DGT technique has not been used to predict metal bioaccumulation in plants grown in sediments in river systems. In this study, the DGT technique was evaluated for predicting metal bioaccumulation in Phragmites australis growing in contaminated sediments. In sediments with high levels of contamination, release of DGT-labile Cr, Zn, Cu, and Cd occurred, which resulted in high bioaccumulation of these metals in P. australis. Bioaccumulation of Cr, Cu, Zn, and Cd was strongly correlated with the metal concentrations in the sediments measured by the DGT technique. By contrast, the correlation between sediment content and bioaccumulation for As was weak. There were significant negative correlations between the content of Ni in the plant tissues and the contents of the other metals. Overall, the DGT technique provided predictions of metal bioaccumulation similar to those obtained using total metal measurements in multiple polluted sediment samples. Therefore, DGT analysis could be used for assessing heavy metal bioavailability, and metal bioaccumulation in P. australis was not all significantly correlated with the bioavailability concentrations of metals in river sediments.
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Affiliation(s)
- Zhixin Song
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Science, Beijing 100049, China
| | - Baoqing Shan
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Science, Beijing 100049, China.
| | - Wenzhong Tang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Science, Beijing 100049, China.
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32
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Singh R, Upadhyay AK, Singh DP. Regulation of oxidative stress and mineral nutrient status by selenium in arsenic treated crop plant Oryza sativa. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 148:105-113. [PMID: 29035752 DOI: 10.1016/j.ecoenv.2017.10.008] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 09/26/2017] [Accepted: 10/03/2017] [Indexed: 05/10/2023]
Abstract
The present study was conducted to examine the impact of selenium (Se) on mineral nutrient status and oxidative stress in crop plant Oryza sativa treated with arsenic (As). Scanning electron microscopy (SEM) coupled with Energy dispersive x-ray spectroscopy (EDS) study revealed the morphological deformities in leaf veins along with granular deposition on the leaf surface. The EDS analysis exhibited loss of elements (S, Si, Cl, K, Ca, Fe and Cu) in As(III) treatment in rice roots as compared to untreated root. In the case of As(III) treated shoot, changes in elements content in term of percent atomic weight was K (1.17-0.90%), Cl (1.04-24.75%), Na (0.65-3.52%) and S (0.49-2.52%) when compared with untreated shoot. The result of EDS analysis showed that As limits the concentration of important mineral elements present in the rice root and shoot. Rice plant treated with Se (10µM) and sub lethal dose of As(III) (60µM) showed better growth responses in term of root, shoot length (11.4% and 10.71%, respectively), biomass (11.7%), reduced malonyldialdehyde content (35.14%) and stimulated antioxidant level indicating better As tolerance potential against As. Further, a selenium dependent significant reduction in As accumulation was also observed in root (14.24%) and shoot (23.78%) of rice plant when compared with plant treated with As alone. This study highlights the potential of Se to ameliorate the ecotoxicological risks associated with the As buildup in agricultural land.
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Affiliation(s)
- R Singh
- Department of Environmental Science, BBAU, Lucknow, India
| | - A K Upadhyay
- Department of Environmental Science, BBAU, Lucknow, India.
| | - D P Singh
- Department of Environmental Science, BBAU, Lucknow, India.
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33
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Kumar Dubey A, Kumar N, Ranjan R, Gautam A, Pande V, Sanyal I, Mallick S. Application of glycine reduces arsenic accumulation and toxicity in Oryza sativa L. by reducing the expression of silicon transporter genes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 148:410-417. [PMID: 29101885 DOI: 10.1016/j.ecoenv.2017.10.047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 10/11/2017] [Accepted: 10/22/2017] [Indexed: 06/07/2023]
Abstract
The present study was intended to investigate the role of amino acid glycine in detoxification of As in Oryza sativa L. The growth parameters such as, shoot length and fresh weight were decreased during As(III) and As(V) toxicity. However, the application of glycine recovered the growth parameters against As stress. The application of glycine reduced the As accumulation in all the treatments, and it was more effective against As(III) treatment and reduced the accumulation by 68% in root and 71% in shoot. Similarly, the translocation of As from root to shoot, was higher against As(III) and As(V) treatments, whereas, reduced upon glycine application. The translocation of Fe and Na was also affected by As, which was lower under As(III) and As(V) treatments. However, the application of glycine significantly enhanced the translocation of Fe and Na in the shoot. Besides, the expression of lower silicon transporters i.e. Lsi-1 and Lsi-2 was observed to be significantly suppressed in the root with the application of glycine against As treatment. Similarly, the expression of three GRX and two GST gene isoforms were found to be significantly increased with glycine application. Simultaneously, the activities of antioxidant enzymes i.e. l-arginine dependent NOS, SOD, NTR and GRX were found to be significantly enhanced in the presence of glycine. Increased activities of antioxidant enzymes coincided with the decreased level of TBARS and H2O2 in rice seedlings. Overall, the results suggested that the application of glycine reduces As accumulation through suppressing the gene expression of lower silicon transporters and ameliorates As toxicity by enhancing antioxidants defense mechanism in rice seedlings.
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Affiliation(s)
- Arvind Kumar Dubey
- CSIR-National Botanical Research Institute, Lucknow, India; Department of Biotechnology, Kumaun University, Bhimtal Campus, Nainital 263136, India
| | - Navin Kumar
- CSIR-National Botanical Research Institute, Lucknow, India
| | - Ruma Ranjan
- CSIR-National Botanical Research Institute, Lucknow, India
| | | | - Veena Pande
- Department of Biotechnology, Kumaun University, Bhimtal Campus, Nainital 263136, India
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Islam S, Rahman MM, Islam MR, Naidu R. Geographical variation and age-related dietary exposure to arsenic in rice from Bangladesh. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 601-602:122-131. [PMID: 28550725 DOI: 10.1016/j.scitotenv.2017.05.184] [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: 03/06/2017] [Revised: 05/08/2017] [Accepted: 05/20/2017] [Indexed: 05/24/2023]
Abstract
An extensive number (965) of rice samples collected by household survey from 73 upazilas (i.e. sub-districts) in Bangladesh was analyzed to determine regional variation, distribution and associated health risks from arsenic (As). No previous study had conducted a study examining such a large number of rice samples. The mean and median concentrations of total As were 126μg/kg and 107μg/kg, respectively, ranging from between 3 and 680μg/kg. Importantly, total As levels of aromatic rice were significantly lower (average 58μg/kg) than non-aromatic rice (average 150μg/kg) and also varied with rice grain size. The variation in As content was dominated by the location (47% among the upazilas, 71% among districts) and rice variety (14%). Inorganic As content in rice grain ranged between 11 and 502μg/kg (n=162) with the highest fraction being 98.6%. The daily intake of inorganic As from rice ranged between 0.38 and 1.92μg/kg BW in different districts. The incremental lifetime cancer risk (ILCR) for individuals due to the consumption of rice varied between 0.57×10-3 to 2.88×10-3 in different districts, and 0.54×10-3 to 2.12×10-3 in different varieties, higher than the US EPA threshold. The 2-10 age group experiences higher carcinogenic risks than others and females are more susceptible than males.
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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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35
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Sharma VK, McDonald TJ, Sohn M, Anquandah GAK, Pettine M, Zboril R. Assessment of toxicity of selenium and cadmium selenium quantum dots: A review. CHEMOSPHERE 2017; 188:403-413. [PMID: 28892773 DOI: 10.1016/j.chemosphere.2017.08.130] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 07/27/2017] [Accepted: 08/24/2017] [Indexed: 05/10/2023]
Abstract
This paper reviews the current understanding of the toxicity of selenium (Se) to terrestrial mammalian and aquatic organisms. Adverse biological effects occur in the case of Se deficiencies, associated with this element having essential biological functions and a narrow window between essentiality and toxicity. Several inorganic species of Se (-2, 0, +4, and +6) and organic species (monomethylated and dimethylated) have been reported in aquatic systems. The toxicity of Se in any given sample depends not only on its speciation and concentration, but also on the concomitant presence of other compounds that may have synergistic or antagonistic effects, affecting the target organism as well, usually spanning 2 or 3 orders of magnitude for inorganic Se species. In aquatic ecosystems, indirect toxic effects, linked to the trophic transfer of excess Se, are usually of much more concern than direct Se toxicity. Studies on the toxicity of selenium nanoparticles indicate the greater toxicity of chemically generated selenium nanoparticles relative to selenium oxyanions for fish and fish embryos while oxyanions of selenium have been found to be more highly toxic to rats as compared to nano-Se. Studies on polymer coated Cd/Se quantum dots suggest significant differences in toxicity of weathered vs. non-weathered QD's as well as a significant role for cadmium with respect to toxicity.
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Affiliation(s)
- Virender K Sharma
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, 1266 TAMU, College Station, TX, 77843, USA; Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, 771 46, Olomouc, Czech Republic.
| | - Thomas J McDonald
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, 1266 TAMU, College Station, TX, 77843, USA
| | - Mary Sohn
- Department of Chemistry, Florida Institute of Technology, 150 West University, Boulevard, Melbourne, FL, 32901, USA
| | - George A K Anquandah
- Department of Chemistry and Biochemistry, St Mary's University, 1 Camino Santa Maria, San Antonio, TX, 78228, USA
| | - Maurizio Pettine
- Istituto di Ricerca sulle Acque (IRSA)/Water Research Institute (IRSA), Consiglio Nazionale delle Ricerche (CNR)/National Research Council, Via Salaria km 29,300 C.P. 10, 00015, Monterotondo, RM, Italy
| | - Radek Zboril
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University in Olomouc, 771 46, Olomouc, Czech Republic
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36
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Huhmann BL, Harvey CF, Uddin A, Choudhury I, Ahmed KM, Duxbury JM, Bostick BC, van Geen A. Field Study of Rice Yield Diminished by Soil Arsenic in Bangladesh. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:11553-11560. [PMID: 28929748 PMCID: PMC5645253 DOI: 10.1021/acs.est.7b01487] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Rice was traditionally grown only during the summer (aman) monsoon in Bangladesh but more than half is now grown during the dry winter (boro) season and requires irrigation. A previous field study conducted in a small area irrigated by a single high-arsenic well has shown that the accumulation of arsenic (As) in soil from irrigating with high-As groundwater can reduce rice yield. We investigated the effect of soil As on rice yield under a range of field conditions by exchanging the top 15 cm of soil between 13 high-As and 13 low-As plots managed by 16 different farmers, and we explore the implications for mitigation. Soil As and rice yields were measured for soil replacement plots where the soil was exchanged and adjacent control plots where the soil was not exchanged. Differences in yield (ranging from +2 to -2 t/ha) were negatively correlated to the differences in soil As (ranging from -9 to +19 mg/kg) between adjacent replacement and control plots during two boro seasons. The relationship between soil As and yield suggests a boro rice yield loss over the entire country of 1.4-4.9 million tons annually, or 7-26% of the annual boro harvest, due to the accumulation of As in soil over the past 25 years.
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Affiliation(s)
- Brittany L. Huhmann
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Corresponding Author: Phone: 617-258-0392; , Address: Civil and Environmental Engineering, 48-208, Massachusetts Institute of Technology, Cambridge, MA, 02139, United States
| | - Charles F. Harvey
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Anjal Uddin
- Department of Geology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Imtiaz Choudhury
- Department of Geology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Kazi M. Ahmed
- Department of Geology, University of Dhaka, Dhaka, 1000, Bangladesh
| | - John M. Duxbury
- School of Integrative Plant Science, Cornell University, Ithaca, NY, 14850, USA
| | - Benjamin C. Bostick
- Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, 10964, USA
| | - Alexander van Geen
- Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, 10964, USA
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Tawussi F, Walther C, Gupta DK. Does low uranium concentration generates phytotoxic symptoms in Pisum sativum L. in nutrient medium? ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:22741-22751. [PMID: 28879634 DOI: 10.1007/s11356-017-0056-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 08/29/2017] [Indexed: 06/07/2023]
Abstract
Due to excessive mining and use of radionuclide especially uranium (U) and its fission products, numerous health hazards as well as environmental contamination worldwide have been created. The present study focused on demonstrating whether low concentration of U treatment in liquid nutient medium may translocate traces of U in plants and in fruits of Pisum sativum after 30 and 60 days of exposure for the safe use as a food supplement for human/animals. Hydroponically grown plants (in amended Hoagland medium) were treated with two different concentrations of uranium ([U] = 100 and 500 nM, respectively). Plants showed a decrease in total chlorophyll after 60 days of treatment. On the other hand, Eh of the nutrient medium was not affected from the initial days till 60 days of treatment, but pH of nutrient medium was increased upon durations, highest at 60 days of treatment. In seeds, micro/macro elements were under limit as well as U concentration was also under detection limit. We did not observe any U in the above ground parts (shoots/seeds) of the plant, i.e., under detection limit. Our observation suggests that P. sativum plants may be useful to grow at low radionuclide [U]-contaminated areas for safe human/animal use, but for other fission products, we have to investigate further for the safe human/animal use.
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Affiliation(s)
- Frank Tawussi
- Institut für Radioökologie und Strahlenschutz (IRS), Leibniz Universität Hannover, Herrenhäuser Straße 2, 30419, Hannover, Germany
| | - Clemens Walther
- Institut für Radioökologie und Strahlenschutz (IRS), Leibniz Universität Hannover, Herrenhäuser Straße 2, 30419, Hannover, Germany
| | - Dharmendra K Gupta
- Institut für Radioökologie und Strahlenschutz (IRS), Leibniz Universität Hannover, Herrenhäuser Straße 2, 30419, Hannover, Germany.
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38
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Chowdhury MTA, Deacon CM, Jones GD, Imamul Huq SM, Williams PN, Manzurul Hoque AFM, Winkel LHE, Price AH, Norton GJ, Meharg AA. Arsenic in Bangladeshi soils related to physiographic region, paddy management, and mirco- and macro-elemental status. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 590-591:406-415. [PMID: 28285852 DOI: 10.1016/j.scitotenv.2016.11.191] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 11/07/2016] [Accepted: 11/26/2016] [Indexed: 06/06/2023]
Abstract
While the impact of arsenic in irrigated agriculture has become a major environmental concern in Bangladesh, to date there is still a limited understanding of arsenic in Bangladeshi paddy soils at a landscape level. A soil survey was conducted across ten different physiographic regions of Bangladesh, which encompassed six types of geomorphology (Bil, Brahmaputra floodplain, Ganges floodplain, Meghna floodplain, Karatoya-Bangali floodplain and Pleistocene terrace). A total of 1209 paddy soils and 235 matched non-paddy soils were collected. The source of irrigation water (groundwater and surface water) was also recorded. The concentrations of arsenic and sixteen other elements were determined in the soil samples. The concentration of arsenic was higher in paddy soils compared to non-paddy soils, with soils irrigated with groundwater being higher in arsenic than those irrigated with surface water. There was a clear difference between the Holocene floodplains and the Pleistocene terraces, with Holocene floodplain soils being higher in arsenic and other elements. The results suggest that arsenic is most likely associated with less well weathered/leached soils, suggesting it is either due to the geological newness of Holocene sediments or differences between the sources of sediments, which gives rise to the arsenic problems in Bangladeshi soils.
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Affiliation(s)
- M Tanvir A Chowdhury
- Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen, AB24 3UU, UK; Department of Soil, Water and Environment, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Claire M Deacon
- Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen, AB24 3UU, UK
| | - Gerrad D Jones
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Ueberlandstrasse 133, P.O. Box 611, CH, 8600 Duebendorf, Switzerland
| | - S M Imamul Huq
- Department of Soil, Water and Environment, University of Dhaka, Dhaka, 1000, Bangladesh
| | - Paul N Williams
- Institute for Global Food Security, Queen's University Belfast, David Keir Building, Malone Road, Belfast BT9 5BN, Northern Ireland, UK
| | - A F M Manzurul Hoque
- Soil Resource Development Institute (SRDI), Khamar Bari Road, Dhaka 1215, Bangladesh
| | - Lenny H E Winkel
- Swiss Federal Institute of Technology (ETH), Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, CH, 8092 Zurich, Switzerland
| | - Adam H Price
- Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen, AB24 3UU, UK
| | - Gareth J Norton
- Institute of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St. Machar Drive, Aberdeen, AB24 3UU, UK.
| | - Andrew A Meharg
- Institute for Global Food Security, Queen's University Belfast, David Keir Building, Malone Road, Belfast BT9 5BN, Northern Ireland, UK.
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Shrivastava A, Barla A, Singh S, Mandraha S, Bose S. Arsenic contamination in agricultural soils of Bengal deltaic region of West Bengal and its higher assimilation in monsoon rice. JOURNAL OF HAZARDOUS MATERIALS 2017; 324:526-534. [PMID: 27865606 DOI: 10.1016/j.jhazmat.2016.11.022] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 10/14/2016] [Accepted: 11/07/2016] [Indexed: 05/21/2023]
Abstract
In the Bengal deltaic region, the shallow groundwater laced with arsenic is used for irrigation frequently and has elevated the soil arsenic in agricultural soil. However, the areas with seasonal flooding reduce arsenic in top layers of the soils. Study shows arsenic accumulation in the deeper soil layers with time in the contaminated agricultural soil (19.40±0.38mg/kg in 0-5cm, 27.17±0.44mg/kg in 5-10cm and 41.24±0.48mg/kg in 10-15cm) in 2013 whereas depletion in 2014 and its buildup in different parts of monsoon rice plant in Nadia, India. Principal Component Analysis and Cluster Analysis were performed, and Enrichment Factor was calculated to identify the sources of arsenic in the soil. Potential Ecological Risk was also calculated to estimate the extent of risk posed by arsenic in soil, along with the potential risk of dietary arsenic exposure. Remarkably, the concentration of arsenic detected in the rice grain showed average value of 1.4mg/kg in 2013 which has increased to 1.6 in 2014, both being above the permissible limit (1mg/kg). These results indicate that monsoon flooding enhances the infiltration of arsenic in the deeper soil layer, which lead to further contamination of shallow groundwater.
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Affiliation(s)
- Anamika Shrivastava
- Earth and Environmental Science Research Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, West Bengal, India
| | - Anil Barla
- Earth and Environmental Science Research Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, West Bengal, India
| | - Surjit Singh
- Earth and Environmental Science Research Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, West Bengal, India
| | - Shivanand Mandraha
- Earth and Environmental Science Research Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, West Bengal, India
| | - Sutapa Bose
- Earth and Environmental Science Research Laboratory, Department of Earth Sciences, Indian Institute of Science Education and Research Kolkata, West Bengal, India.
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40
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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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Azam SMGG, Sarker TC, Naz S. Factors affecting the soil arsenic bioavailability, accumulation in rice and risk to human health: a review. Toxicol Mech Methods 2016; 26:565-579. [DOI: 10.1080/15376516.2016.1230165] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Dubey AK, Kumar N, Sahu N, Verma PK, Chakrabarty D, Behera SK, Mallick S. Response of two rice cultivars differing in their sensitivity towards arsenic, differs in their expression of glutaredoxin and glutathione S transferase genes and antioxidant usage. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 124:393-405. [PMID: 26606179 DOI: 10.1016/j.ecoenv.2015.10.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 10/14/2015] [Accepted: 10/15/2015] [Indexed: 05/19/2023]
Abstract
Embodied study investigates the role of GRX and associated antioxidant enzymes in the detoxification mechanism between arsenic (As) sensitive (Usar-3) and tolerant cultivar (Pant Dhan 11) of Oryza sativa against As(III) and As(V), under GSH enriched, and GSH deprived conditions. The overall growth and physiological parameters in sensitive cultivar were lower than the tolerant cultivar, against various treatments of As(III) and As(V). The As accumulation in sensitive cv. against both As(III) and As(V) was lower than the corresponding treatments in tolerant cv. However, the As translocation against As(V) was lower (35% and 64%, resp.) than that of As(III), in both the cultivars. In sensitive cv. translocation of Zn and Cu was influenced by both As(V) and As(III) whereas, in tolerant cv. the translocation of Cu, Mn and Zn was influenced only by As(III). Translocation of Fe was negatively influenced by translocation of As in sensitive cv. and positively in tolerant cv. Strong correlation between H2O2, SOD, GRX, GR, GST and GSH/GSSG in sensitive cv. and between DHAR, APX, MDHAR and AsA in tolerant cv. demonstrates the underlying preference of GSH as electron donor for detoxification of H2O2 in sensitive cv. and AsA in tolerant cv. Higher expression of the four GRX and two GST genes in the sensitive cv. than tolerant cv, suggests that under As stress, GRX are synthesized more in the sensitive cv. than tolerant cv. Also, the expression of four GRX genes were higher against As(V) than As(III). The higher As accumulation in the tolerant cv. is due to lower GST expression, is attributed to the absence of thiolation and sequestration of As in roots, the translocation of As to shoots is higher.
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Affiliation(s)
- Arvind Kumar Dubey
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India
| | - Navin Kumar
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India
| | - Nayan Sahu
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India
| | - Pankaj Kumar Verma
- Genetics and Molecular Biology Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India
| | - Debasis Chakrabarty
- Genetics and Molecular Biology Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India
| | - Soumit K Behera
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India
| | - Shekhar Mallick
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India.
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Tripathi P, Singh PC, Mishra A, Tripathi RD, Nautiyal CS. Trichoderma inoculation augments grain amino acids and mineral nutrients by modulating arsenic speciation and accumulation in chickpea (Cicer arietinum L.). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 117:72-80. [PMID: 25839184 DOI: 10.1016/j.ecoenv.2014.10.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 10/20/2014] [Accepted: 10/21/2014] [Indexed: 05/17/2023]
Abstract
Trichoderma reesei is an industrially important fungi which also imparts stress tolerance and plant growth promotion in various crops. Arsenic (As) contamination of field soils is one of the challenging problems in agriculture, posing potential threats for both human health and the environment. Plants in association with microbes are a liable method to improve metal tolerance and enhance crop productivity. Chickpea (Cicer arietinum L.), is an important grain legume providing cheap source of protein in semi-arid regions including As affected areas. In this study we report the role of T. reesei NBRI 0716 (NBRI 0716) in supporting chickpea growth and improving soil quality in As simulated conditions. NBRI 0716 modulated the As speciation and its availability to improve grain yield and quality (amino acids and mineral content) in chickpea (C. arietinum L.) plants grown in As spiked soil (100 mg As kg(-1) soil). Arsenic accumulation and speciation results indicate that arsenate [As(V)] was the dominant species in chickpea seeds and rhizosphere soil. The Trichoderma reduced total grain inorganic As (Asi) by 66% and enhanced dimethylarsonic acid (DMA) and monomethylarsinic acid (MMA) content of seed and rhizosphere soil. The results indicate a probable role of NBRI 0716 in As methylation as the possible mechanism for maneuvering As stress in chickpea. Analysis of functional diversity using carbon source utilization (Biolog) showed significant difference in diversity and evenness indices among the soil microbial rhizosphere communities. Microbial diversity loss caused by As were prevented in the presence of Trichoderma NBRI 0716.
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Affiliation(s)
| | - Poonam C Singh
- CSIR-National Botanical Research Institute, Lucknow 226001, India
| | - Aradhana Mishra
- CSIR-National Botanical Research Institute, Lucknow 226001, India
| | - Rudra D Tripathi
- CSIR-National Botanical Research Institute, Lucknow 226001, India.
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Wang X, Peng B, Tan C, Ma L, Rathinasabapathi B. Recent advances in arsenic bioavailability, transport, and speciation in rice. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:5742-50. [PMID: 25827791 DOI: 10.1007/s11356-014-4065-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 12/30/2014] [Indexed: 05/15/2023]
Abstract
Widespread arsenic (As) contamination in paddy rice (Oryza sativa) from both geologic and anthropogenic origins is an increasing concern globally. Substantial efforts have been made to elucidate As transformation and uptake processes in rhizosphere and metabolism in rice plant, which provides an essential foundation for the development of mitigation strategies. However, a range of crucial mechanisms from As mobilization in rhizosphere to transport to grains remain poorly understood. To provide new insight into the underlying mechanisms of As accumulation in rice, a range of new perspectives on As bioavailability, transport pathways, and in situ speciation are reviewed here. Specifically, the prominent effects of water regime, Fe plaque, and biochar on As mobilization in rice rhizosphere are discussed critically. An updated understanding of arsenite (AsIII) and methylated As transport from root to vascular bundle and grain is integrated and discussed in detail. Special attention is given to As speciation and distribution in rice grain with potential coping strategies being provided and discussed. Future research priorities are also identified. The new insight into As bioavailability, transport and speciation in rice would lead to a better understanding of As contamination in rice. They would also provide useful strategies from agronomic measures to genetic engineering for more effective restriction of As transport and accumulation in food chain.
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Affiliation(s)
- Xin Wang
- College of Resources and Environmental Science, Hunan Normal University, Changsha, 410081, Hunan, China,
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Chu Q, Watanabe T, Sha Z, Osaki M, Shinano T. Interactions between Cs, Sr, and other nutrients and trace element accumulation in Amaranthus shoot in response to variety effect. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:2355-63. [PMID: 25660261 DOI: 10.1021/jf5058777] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Aiming at clarifying the interactions between Cs, Sr, and other mineral elements in the genus Amaranthus, this study adopted 33 different varieties of Amaranthus and investigated the concentrations of 23 mineral elements in shoots grown in the fields of Iino in Fukushima prefecture. Significant varietal effects were detected for all elements except Se, and degree of interspecies variation was highly element dependent. Among 23 elements, amaranths were less sensitive to the accumulation of Cs and Sr than most other mineral elements to the species level. There are six elements showing significant correlation with Cs, positive correlations between As, Rb, Al, Fe, Ni, and Cs, and negative correlation between Ba and Cs. Significant correlations between Ca, Mg, Mn, Zn, B, Ba, Cd, and Sr were detected, and all of the coefficients were positive. Cs and Sr did not present significant correlation, but they were both significantly correlated with Ba. By principal component analysis (PCA), the first and second principal components (PC1 and PC2) accounted for 23.2 and 20.3% of the total variance and associated with Cs and Sr, respectively. Both of the two species took up more Cs by promoting the influx of elements positively correlated with Cs into shoot, but at the same time, Amaranthus hypochondriacus (L.) Mapes 847 decreased the K and Ba uptake and Amaranthus powellii (S. Wats) subsp. Powellii inhibited the accumulation of Rb, Sr, and significantly correlated elements of Sr in shoot. This study is the first to pave the way for comprehension on ionome in amaranth shoot at the variety level. The results of this research provide the ionomic basis for implementing countermeasures in the field against the translocation of Cs (and potentially Sr) toward crops and food.
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Affiliation(s)
- Qingnan Chu
- Graduate School of Agriculture, Hokkaido University , Sapporo 062-8555, Japan
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Rothenberg SE, Mgutshini NL, Bizimis M, Johnson-Beebout SE, Ramanantsoanirina A. Retrospective study of methylmercury and other metal(loid)s in Madagascar unpolished rice (Oryza sativa L.). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2015; 196:125-33. [PMID: 25463705 PMCID: PMC4352114 DOI: 10.1016/j.envpol.2014.10.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/04/2014] [Accepted: 10/08/2014] [Indexed: 05/04/2023]
Abstract
The rice ingestion rate in Madagascar is among the highest globally; however studies concerning metal(loid) concentrations in Madagascar rice are lacking. For Madagascar unpolished rice (n = 51 landraces), levels of toxic elements (e.g., total mercury, methylmercury, arsenic and cadmium) as well as essential micronutrients (e.g., zinc and selenium) were uniformly low, indicating potentially both positive and negative health effects. Aside from manganese (Wilcoxon rank sum, p < 0.01), no significant differences in concentrations for all trace elements were observed between rice with red bran (n = 20)and brown bran (n = 31) (Wilcoxon rank sum, p = 0.06-0.91). Compared to all elements in rice,rubidium (i.e., tracer for phloem transport) was most positively correlated with methylmercury (Pearson'sr = 0.33, p < 0.05) and total mercury (r = 0.44, p < 0.05), while strontium (i.e., tracer for xylemtransport) was least correlated with total mercury and methylmercury (r < 0.01 for both), suggesting inorganic mercury and methylmercury were possibly more mobile in phloem compared to xylem.
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Affiliation(s)
- Sarah E Rothenberg
- University of South Carolina, Department of Environmental Health Sciences, Columbia, SC, USA.
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Li WC, Ouyang Y, Ye ZH. Accumulation of mercury and cadmium in rice from paddy soil near a mercury mine. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2014; 33:2438-2447. [PMID: 25087518 DOI: 10.1002/etc.2706] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 07/06/2014] [Accepted: 07/29/2014] [Indexed: 06/03/2023]
Abstract
Paddy soil and rice (Oryza sativa L.) in the Wanshan mining area in Guizhou Province, China, have been contaminated by toxic trace metals such as cadmium (Cd) and mercury (Hg). The present study examined correlations between the types and physicochemical parameters of the soil and the contents of trace metals and the different forms of Hg in rice. The health risks of consuming contaminated rice from the Wanshan mining area were also assessed. Sequential extraction procedures were used to investigate the chemical behavior of Hg in the soil. The results showed that Hg and Cd were the most abundant trace metals in the Wanshan mining area. The toxic methylmercury (MeHg) content was substantial in brown rice, and the total amounts of total Hg (THg), diethylenetriaminepentaacetic acid-Hg, and water-soluble Hg varied in the rhizosphere and non-rhizosphere soils. An antagonistic interaction between Mn in brown rice, straw, and husk and MeHg in brown rice was also shown. An analysis of calculated dietary intake, target hazard quotients, and hazard indexes showed a potential risk of transferring Hg, MeHg, and Cd to humans when rice from the Wanshan mining area is consumed. Therefore, it must be concluded that consuming contaminated rice near the Wanshan mining area is a potential threat to human health.
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Affiliation(s)
- W C Li
- Centre for Education in Environmental Sustainability and Department of Science and Environmental Studies, The Hong Kong Institute of Education, Hong Kong
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Mallick S, Kumar N, Sinha S, Dubey AK, Tripathi RD, Srivastav V. H2O2 pretreated rice seedlings specifically reduces arsenate not arsenite: difference in nutrient uptake and antioxidant defense response in a contrasting pair of rice cultivars. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2014; 20:435-47. [PMID: 25320467 PMCID: PMC4185047 DOI: 10.1007/s12298-014-0255-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 07/25/2014] [Indexed: 05/03/2023]
Abstract
The study investigated the reduction in metalloid uptake at equimolar concentrations (~53.3 μM) of As(III) and As(V) in contrasting pair of rice seedlings by pretreating with H2O2 (1.0 μM) and SA (1.0 mM). Results obtained from the contrasting pair (arsenic tolerant vs. sensitive) of rice seedlings (cv. Pant Dhan 11 and MTU 7029, respectively) shows that pretreatment of H2O2 and H2O2 + SA reduces As(V) uptake significantly in both the cultivars, while no reduction in the As(III) uptake. The higher growth inhibition, higher H2O2 and TBARS content in sensitive cultivar against As(III) and As(V) treatments along with higher As accumulation (~1.2 mg g(-1) dw) than in cv. P11, unravels the fundamental difference in the response between the sensitive and tolerant cultivar. In the H2O2 pretreated plants, the translocation of As increased in tolerant cultivar against AsIII, whereas, it decreased in sensitive cultivar both against AsIII and AsV. In both the cultivars translocation of Mn increased in the H2O2 pretreated plants against As(III), whereas, the translocation of Cu increased against As(V). In tolerant cultivar the translocation of Fe increased against As(V) with H2O2 pretreatment whereas, it decreased in the sensitive cultivar. In both the cultivars, Zn translocation increased against As(III) and decreased against As(V). The higher level of H2O2 and SOD (EC 1.15.1.1) activity in sensitive cultivar whereas, higher, APX (EC 1.11.1.11), GR (EC 1.6.4.2) and GST (EC 1.6.4.2) activity in tolerant cultivar, also demonstrated the differential anti-oxidative defence responses between the contrasting rice cultivars.
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Affiliation(s)
- Shekhar Mallick
- />Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
| | - Navin Kumar
- />Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
| | - Sarita Sinha
- />Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
| | - Arvind Kumar Dubey
- />Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
| | - Rudra Deo Tripathi
- />Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
| | - Vivek Srivastav
- />Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
- />Technology Transfer and Business Development Division, CSIR-National Botanical Researcvh Institute, Lucknow, India
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Rowell C, Kuiper N, Al-Saad K, Nriagu J, Shomar B. A market basket survey of As, Zn and Se in rice imports in Qatar: health implications. Food Chem Toxicol 2014; 70:33-9. [PMID: 24813761 DOI: 10.1016/j.fct.2014.04.041] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 04/24/2014] [Accepted: 04/25/2014] [Indexed: 10/25/2022]
Abstract
Qatar is dependent on importation of rice, its staple dish, and is therefore susceptible to compromises of food quality in the global market. This market basket study assesses potential health risks of As exposure from rice consumption in Qatar and examines its contribution to the recommended nutritional intakes (RNI) for Zn and Se. Fifty-six rice types and 12 products sold in Qatar were analyzed by ICP/MS. Mean concentrations and ranges were 96.2±54.1μg/kg (9.76-258μg/kg) for As; 12.5±5.35mg/kg (2.79-29.9mg/kg) for Zn and 103±113μg/kg (<5.94-422μg/kg) for Se. Calculated risk quotient shows rice consumption in Qatar is not a significant route of As exposure but can contribute up to 100% and 50% of the RNI for Se and Zn, respectively. Results indicate that children in Qatar may be at elevated risk of arsenic exposure from rice-based infant cereals but more data is needed to obtain a definitive assessment.
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Affiliation(s)
- Candace Rowell
- Qatar Environment and Energy Research Institute (QEERI), Qatar Foundation, P.O. Box 5825, Doha, Qatar
| | - Nora Kuiper
- Qatar Environment and Energy Research Institute (QEERI), Qatar Foundation, P.O. Box 5825, Doha, Qatar
| | - Khalid Al-Saad
- Central Laboratory Unit, Department of Chemistry, Qatar University, P.O. Box 2713, Doha, Qatar
| | - Jerome Nriagu
- Department of Environmental Health Science, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109, USA
| | - Basem Shomar
- Qatar Environment and Energy Research Institute (QEERI), Qatar Foundation, P.O. Box 5825, Doha, Qatar.
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Hu Y, Duan GL, Huang YZ, Liu YX, Sun GX. Interactive effects of different inorganic As and Se species on their uptake and translocation by rice (Oryza sativa L.) seedlings. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:3955-3962. [PMID: 24297465 DOI: 10.1007/s11356-013-2321-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2013] [Accepted: 11/04/2013] [Indexed: 06/02/2023]
Abstract
There is a lack of information on the interactive relationship of absorption and transformation between two inorganic arsenic (As) species and two inorganic selenium (Se) species in rice grown under hydroponic condition. Interactive effects of inorganic As (As(III)) and (As(V)) and Se (Se(IV)and Se(VI)) species on their uptake, accumulation, and translocation in rice (Oryza sativa L.) seedlings were investigated in hydroponic culture. The results clearly showed the interactive effects of inorganic As and Se on their uptake by rice. The presence of Se reduced the sum of As species in the rice shoots regardless of Se speciation. If Se is present as Se(IV), then is it is accompanied by a corresponding increase of the sum of As species, but if Se is present as Se(VI), then there is no change in the sum of As species in rice roots. These effects are observed regardless of initial As speciation. When the rice plants are exposed to Se(IV), the presence of As increases the sum of Se species in the roots, and decreases the sum of Se species in the corresponding shoots. This effect is more pronounced for As(III) than for As(V). There is no effect on Se during exposure to Se(VI). Co-existence of As also increased SeMet in rice roots.
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Affiliation(s)
- Ying Hu
- State Key Lab of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
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