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Khlifi N, Ghabriche R, Ayachi I, Zorrig W, Ghnaya T. How does silicon alleviate Cd-induced phytotoxicity in barley, Hordeum vulgare L.? CHEMOSPHERE 2024; 362:142739. [PMID: 38969217 DOI: 10.1016/j.chemosphere.2024.142739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 06/01/2024] [Accepted: 06/28/2024] [Indexed: 07/07/2024]
Abstract
Toxic heavy metal accumulation in edible plants has become a problem worth worrying about for human health. Cadmium is one of the most toxic metals presenting high bioavailability in the environment. The main route of transfer of Cd to humans is the consumption of contaminated food which suggests that reducing of Cd absorption by plants could reduce this risk. In this context, it was suggested that silicon supply would be able to limit the transfer of Cd to the plants. Thus, this work evaluated the effects of 0.5 mM Si on Cd absorption and accumulation in barley (Hordeum vulgare L.). Plants were grown hydroponically for 21 days in the presence of 0 and 15 μM Cd2+ combined or not with 0.5 mM Si. Analyses were related to growth and photosynthesis parameters, Cd accumulation in organs and Cd subcellular distribution in the shoots. Results showed that, under Cd alone, plants showed severe toxicity symptoms as chlorosis and necrosis and produced significantly less biomass as compared to control. 0.5 mM Si in the medium culture significantly reduced Cd-induced toxicity by mitigating symptoms and restoring growth, photosynthesis, and nutrition. Si also induced a significant reduction of Cd concentration in plants and changed its sub-cellular compartmentalization by enhancing fixation to cell walls and reducing the Cd concentration in the cytoplasmic and organelles fractions. These data suggest that the application of Si could significantly increase Cd tolerance and reduce the risk of the Cd accumulation in edible plants.
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Affiliation(s)
- Nadia Khlifi
- Laboratory of Extremophile Plants, Biotechnology Center of BorjCedria, BP 901, Hammam-Lif, 2050, Tunis, Tunisia
| | - Rim Ghabriche
- Laboratory of Extremophile Plants, Biotechnology Center of BorjCedria, BP 901, Hammam-Lif, 2050, Tunis, Tunisia
| | - Imen Ayachi
- Laboratory of Extremophile Plants, Biotechnology Center of BorjCedria, BP 901, Hammam-Lif, 2050, Tunis, Tunisia
| | - Walid Zorrig
- Laboratory of Extremophile Plants, Biotechnology Center of BorjCedria, BP 901, Hammam-Lif, 2050, Tunis, Tunisia
| | - Tahar Ghnaya
- Higher Institute of Arts and Crafts of Tataouine, University of Gabes, Rue OmarrEbenkhattab, 6029, Zerig-Gabes, Tunisia; Laboratory of Pastoral Ecosystems and Promotion of Spontaneous Plants and Associated Micro-organisms, Institute of Arid Land, 4100, Medenine, University of Gabes Tunisia, Tunisia.
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Qiu LX, Guan DX, Liu YW, Teng HH, Li ZB, Lux A, Kuzyakov Y, Ma LQ. Mechanisms of Arbuscular Mycorrhizal Fungi Increasing Silicon Uptake by Rice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38943592 DOI: 10.1021/acs.jafc.4c01487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2024]
Abstract
Arbuscular mycorrhizal fungi (AMF) influence silicon (Si) uptake by plants, but the mechanisms remain unclear. This study investigated the mechanisms of AMF-mediated Si uptake by rice, a model Si-accumulating plant, and explored the tripartite interactions among AMF, Si, and phosphorus (P). AMF inoculation increased shoot Si content by 97% when supplied with silicic acid and by 29% with calcium silicate and upregulated expression of Si transporters Lsi1 and Lsi2 in roots. Supplying Si only to AMF hyphae increased the root Si content by 113%, indicating direct Si uptake by hyphae. Mechanisms of AMF-induced Si uptake were elucidated: 1) direct Si uptake by hyphae, 2) increased silicate dissolution, and 3) upregulation of Si transporters. Silicon application also increased AMF colonization by 28%, and the absence of interactions was observed on P uptake. Altogether, AMF support Si acquisition and Si fosters AMF colonization in rice, whereas the P uptake depends more on AMF than on Si.
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Affiliation(s)
- Li-Xue Qiu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dong-Xing Guan
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yi-Wen Liu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - H Henry Teng
- Tianjin Key Laboratory of Earth Critical Zone Science and Sustainable Development in Bohai Rim, Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Zi-Bo Li
- State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Alexander Lux
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynska dolina B2, Bratislava 842 15, Slovakia
| | - Yakov Kuzyakov
- Department of Soil Science of Temperate Ecosystems, Department of Agricultural Soil Science, University of Göttingen, Göttingen 37077, Germany
- Agro-Technological Institute, RUDN University, Moscow 117198, Russia
- Institute of Environmental Sciences, Kazan Federal University, Kazan 420049, Russia
| | - Lena Q Ma
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
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Chan-in P, Jamjod S, Prom-u-thai C, Rerkasem B, Russell J, Pusadee T. Application of Silicon Influencing Grain Yield and Some Grain Quality Features in Thai Fragrant Rice. PLANTS (BASEL, SWITZERLAND) 2024; 13:1336. [PMID: 38794407 PMCID: PMC11125221 DOI: 10.3390/plants13101336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 05/08/2024] [Accepted: 05/10/2024] [Indexed: 05/26/2024]
Abstract
Silicon (Si) is a beneficial nutrient that has been shown to increase rice productivity and grain quality. Fragrant rice occupies the high end of the rice market with prices at twice to more than three times those of non-fragrant rice. Thus, this study evaluated the effects of increasing Si on the yield and quality of fragrant rice. Also measured were the content of proline and the expression of the genes associated with 2AP synthesis and Si transport. The fragrant rice varieties were found to differ markedly in the effect of Si on their quality, as measured by the grain 2AP concentration, while there were only slight differences in their yield response to Si. The varieties with low 2AP when the Si supply is limited are represented by either PTT1 or BNM4 with only slight increases in 2AP when Si was increased. Si affects the gene expression levels of the genes associated with 2AP synthesis, and the accumulation of 2AP in fragrant rice mainly occurred through the upregulation of Badh2, DAO, OAT, ProDH, and P5CS genes. The findings suggest that Si is a potential micronutrient that can be utilized for improving 2AP and grain yield in further aromatic rice breeding programs.
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Affiliation(s)
- Phukjira Chan-in
- Plant Genetic Resource and Nutrition Lab (CMUPNLab), Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.C.-i.); (S.J.); (C.P.-u.-t.)
| | - Sansanee Jamjod
- Plant Genetic Resource and Nutrition Lab (CMUPNLab), Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.C.-i.); (S.J.); (C.P.-u.-t.)
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Chanakan Prom-u-thai
- Plant Genetic Resource and Nutrition Lab (CMUPNLab), Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.C.-i.); (S.J.); (C.P.-u.-t.)
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Benjavan Rerkasem
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand;
| | - Joanne Russell
- Cell and Molecular Sciences, The James Hutton Institute, Dundee DD25DA, UK;
| | - Tonapha Pusadee
- Plant Genetic Resource and Nutrition Lab (CMUPNLab), Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (P.C.-i.); (S.J.); (C.P.-u.-t.)
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand;
- Agrobiodiversity in Highland and Sustainable Utilization Research Group, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
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Roy S, Hazarika K, Sen A, Dasgupta S, Bhattacharya S. Understanding phloem's role in long-distance transport and accumulation of arsenic (As) in rice: toward low-As-accumulating grain development. PLANTA 2024; 259:141. [PMID: 38695915 DOI: 10.1007/s00425-024-04422-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 04/23/2024] [Indexed: 05/23/2024]
Abstract
MAIN CONCLUSION This review highlights the roles of phloem in the long-distance transport and accumulation of As in rice plants, facilitating the formulation of new strategies to reduce the grain As content. Rice is a staple diet for a significant proportion of the global population. As toxicity is a major issue affecting the rice productivity and quality worldwide. Phloem tissues of rice plants play vital roles in As speciation, long-distance transport, and unloading, thereby controlling the As accumulation in rice grains. Phloem transport accounts for a significant proportion of As transport to grains, ranging from 54 to 100% depending on the species [inorganic arsenate (As(V)), arsenite (As(III)), or organic dimethylarsinic acid (DMA(V)]. However, the specific mechanism of As transport through phloem leading to its accumulation in grains remains unknown. Therefore, understanding the molecular mechanism of phloem-mediated As transport is necessary to determine the roles of phloem in long-distance As transport and subsequently reduce the grain As content via biotechnological interventions. This review discusses the roles of phloem tissues in the long-distance transport and accumulation of As in rice grains. This review also highlights the biotechnological approaches using critical genetic factors involved in nodal accumulation, vacuolar sequestration, and cellular efflux of As in phloem- or phloem-associated tissues. Furthermore, the limitations of existing transgenic techniques are outlined to facilitate the formulation of novel strategies for the development of rice with reduced grain As content.
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Affiliation(s)
- Sanket Roy
- Amity Institute of Biotechnology, Amity University Kolkata, Plot No: 36, 37 and 38, Major Arterial Road, Action Area II, Kadampukur Village, Rajarhat, Newtown, Kolkata, West Bengal, 700135, India
| | - Kabyashree Hazarika
- Amity Institute of Biotechnology, Amity University Kolkata, Plot No: 36, 37 and 38, Major Arterial Road, Action Area II, Kadampukur Village, Rajarhat, Newtown, Kolkata, West Bengal, 700135, India
| | - Anuska Sen
- Amity Institute of Biotechnology, Amity University Kolkata, Plot No: 36, 37 and 38, Major Arterial Road, Action Area II, Kadampukur Village, Rajarhat, Newtown, Kolkata, West Bengal, 700135, India
| | | | - Surajit Bhattacharya
- Amity Institute of Biotechnology, Amity University Kolkata, Plot No: 36, 37 and 38, Major Arterial Road, Action Area II, Kadampukur Village, Rajarhat, Newtown, Kolkata, West Bengal, 700135, India.
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Yan G, Huang Q, Zhao S, Xu Y, He Y, Nikolic M, Nikolic N, Liang Y, Zhu Z. Silicon nanoparticles in sustainable agriculture: synthesis, absorption, and plant stress alleviation. FRONTIERS IN PLANT SCIENCE 2024; 15:1393458. [PMID: 38606077 PMCID: PMC11006995 DOI: 10.3389/fpls.2024.1393458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 03/18/2024] [Indexed: 04/13/2024]
Abstract
Silicon (Si) is a widely recognized beneficial element in plants. With the emergence of nanotechnology in agriculture, silicon nanoparticles (SiNPs) demonstrate promising applicability in sustainable agriculture. Particularly, the application of SiNPs has proven to be a high-efficiency and cost-effective strategy for protecting plant against various biotic and abiotic stresses such as insect pests, pathogen diseases, metal stress, drought stress, and salt stress. To date, rapid progress has been made in unveiling the multiple functions and related mechanisms of SiNPs in promoting the sustainability of agricultural production in the recent decade, while a comprehensive summary is still lacking. Here, the review provides an up-to-date overview of the synthesis, uptake and translocation, and application of SiNPs in alleviating stresses aiming for the reasonable usage of SiNPs in nano-enabled agriculture. The major points are listed as following: (1) SiNPs can be synthesized by using physical, chemical, and biological (green synthesis) approaches, while green synthesis using agricultural wastes as raw materials is more suitable for large-scale production and recycling agriculture. (2) The uptake and translocation of SiNPs in plants differs significantly from that of Si, which is determined by plant factors and the properties of SiNPs. (3) Under stressful conditions, SiNPs can regulate plant stress acclimation at morphological, physiological, and molecular levels as growth stimulator; as well as deliver pesticides and plant growth regulating chemicals as nanocarrier, thereby enhancing plant growth and yield. (4) Several key issues deserve further investigation including effective approaches of SiNPs synthesis and modification, molecular basis of SiNPs-induced plant stress resistance, and systematic effects of SiNPs on agricultural ecosystem.
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Affiliation(s)
- Guochao Yan
- College of Horticulture Science, Zhejiang Agriculture and Forestry University, Hangzhou, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable of Ministry of Agriculture and Rural Affairs, Zhejiang Agriculture and Forestry University, Hangzhou, China
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Qingying Huang
- College of Horticulture Science, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Shuaijing Zhao
- College of Horticulture Science, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Yunmin Xu
- College of Horticulture Science, Zhejiang Agriculture and Forestry University, Hangzhou, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable of Ministry of Agriculture and Rural Affairs, Zhejiang Agriculture and Forestry University, Hangzhou, China
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Yong He
- College of Horticulture Science, Zhejiang Agriculture and Forestry University, Hangzhou, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable of Ministry of Agriculture and Rural Affairs, Zhejiang Agriculture and Forestry University, Hangzhou, China
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, Zhejiang Agriculture and Forestry University, Hangzhou, China
| | - Miroslav Nikolic
- Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Nina Nikolic
- Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Yongchao Liang
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Zhujun Zhu
- College of Horticulture Science, Zhejiang Agriculture and Forestry University, Hangzhou, China
- Key Laboratory of Quality and Safety Control for Subtropical Fruit and Vegetable of Ministry of Agriculture and Rural Affairs, Zhejiang Agriculture and Forestry University, Hangzhou, China
- Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province, Zhejiang Agriculture and Forestry University, Hangzhou, China
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Thakral V, Raturi G, Sudhakaran S, Mandlik R, Sharma Y, Shivaraj SM, Tripathi DK, Sonah H, Deshmukh R. Silicon, a quasi-essential element: Availability in soil, fertilizer regime, optimum dosage, and uptake in plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108459. [PMID: 38484684 DOI: 10.1016/j.plaphy.2024.108459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/26/2024] [Accepted: 02/20/2024] [Indexed: 04/02/2024]
Abstract
The essentiality of silicon (Si) has always been a matter of debate as it is not considered crucial for the lifecycles of most plants. But beneficial effects of endogenous Si and its supplementation have been observed in many plants. Silicon plays a pivotal role in alleviating the biotic and abiotic stress in plants by acting as a physical barrier as well as affecting molecular pathways involved in stress tolerance, thus widely considered as "quasi-essential". In soil, most of Si is found in complex forms as mineral silicates which is not available for plant uptake. Monosilicic acid [Si(OH)4] is the only plant-available form of silicon (PAS) present in the soil. The ability of a plant to uptake Si is positively correlated with the PAS concentration of the soil. Since many cultivated soils often lack a sufficient amount of PAS, it has become common practice to supplement Si through the use of Si-based fertilizers in various crop cultivation systems. This review outlines the use of natural and chemical sources of Si as fertilizer, different regimes of Si fertilization, and conclude by identifying the optimum concentration of Si required to observe the beneficial effects in plants. Also, the different mathematical models defining the mineral dynamics for Si uptake at whole plant scale considering various natural factors like plant morphology, mineral distribution, and transporter expression have been discussed. Information provided here will further help in increasing understanding of Si role and thereby facilitate efficient exploration of the element as a fertilizer in crop production.
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Affiliation(s)
- Vandana Thakral
- Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendragarh, Haryana, India; Department of Biotechnology, Panjab University, Chandigarh, India
| | - Gaurav Raturi
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Sreeja Sudhakaran
- Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendragarh, Haryana, India; Department of Biotechnology, Panjab University, Chandigarh, India
| | - Rushil Mandlik
- Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendragarh, Haryana, India; Department of Biotechnology, Panjab University, Chandigarh, India
| | - Yogesh Sharma
- Regional Centre for Biotechnology, Faridabad, Haryana, India
| | - S M Shivaraj
- Department of Science, Alliance University, Bengaluru, India
| | - Durgesh Kumar Tripathi
- Crop Nanobiology and Molecular Biology Lab, Amity Institute of Organic Agriculture (AIOA), Amity University, Noida, Uttar Pradesh, India
| | - Humira Sonah
- Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendragarh, Haryana, India.
| | - Rupesh Deshmukh
- Department of Biotechnology, Central University of Haryana, Jant-Pali, Mahendragarh, Haryana, India.
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Sheng H, Lei Y, Wei J, Yang Z, Peng L, Li W, Liu Y. Analogy of silicon and boron in plant nutrition. FRONTIERS IN PLANT SCIENCE 2024; 15:1353706. [PMID: 38379945 PMCID: PMC10877001 DOI: 10.3389/fpls.2024.1353706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 01/24/2024] [Indexed: 02/22/2024]
Abstract
Silicon (Si) and boron (B) are a class of elements called metalloids, which have properties like metals and non-metals. Si is classified as a quasi-essential element, while B is a micronutrient element for plants. Nowadays, numerous discoveries have shown the analogy of silicon and boron in plant nutrition. In this minireview, the molecular mechanisms for the transport of these two metalloids are compared. We also discussed the chemical forms of Si and B and their functional similarity in response to environmental stresses in plants. In conclusion, it can be proposed that cell wall-bound silicon rather than silica might partially replace boron for plant growth, development, and stress responses, and the underlying mechanism is the Si contribution to B in its structural function.
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Affiliation(s)
- Huachun Sheng
- Sichuan Provincial Qiang-Yi Medicinal Resources Protection and Utilization Technology and Engineering Laboratory, Southwest Minzu University, Chengdu, Sichuan, China
- Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization Key Laboratory of National Ethnic Affairs Commission of the People’s Republic of China, Southwest Minzu University, Chengdu, Sichuan, China
| | - Yuyan Lei
- Sichuan Provincial Qiang-Yi Medicinal Resources Protection and Utilization Technology and Engineering Laboratory, Southwest Minzu University, Chengdu, Sichuan, China
- Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization Key Laboratory of National Ethnic Affairs Commission of the People’s Republic of China, Southwest Minzu University, Chengdu, Sichuan, China
| | - Jing Wei
- Sichuan Provincial Qiang-Yi Medicinal Resources Protection and Utilization Technology and Engineering Laboratory, Southwest Minzu University, Chengdu, Sichuan, China
- Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization Key Laboratory of National Ethnic Affairs Commission of the People’s Republic of China, Southwest Minzu University, Chengdu, Sichuan, China
| | - Zhengming Yang
- Sichuan Provincial Qiang-Yi Medicinal Resources Protection and Utilization Technology and Engineering Laboratory, Southwest Minzu University, Chengdu, Sichuan, China
- Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization Key Laboratory of National Ethnic Affairs Commission of the People’s Republic of China, Southwest Minzu University, Chengdu, Sichuan, China
| | - Lianxin Peng
- Key Laboratory of Coarse Cereal Processing of Ministry of Agriculture and Rural Affairs, Chengdu University, Chengdu, Sichuan, China
| | - Wenbing Li
- Sichuan Provincial Qiang-Yi Medicinal Resources Protection and Utilization Technology and Engineering Laboratory, Southwest Minzu University, Chengdu, Sichuan, China
- Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization Key Laboratory of National Ethnic Affairs Commission of the People’s Republic of China, Southwest Minzu University, Chengdu, Sichuan, China
| | - Yuan Liu
- Sichuan Provincial Qiang-Yi Medicinal Resources Protection and Utilization Technology and Engineering Laboratory, Southwest Minzu University, Chengdu, Sichuan, China
- Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization Key Laboratory of National Ethnic Affairs Commission of the People’s Republic of China, Southwest Minzu University, Chengdu, Sichuan, China
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Janejobkhet J, Pongprayoon W, Obsuwan K, Jaiyindee S, Maksup S. Multifaceted response mechanisms of Oryza sativa L. 'KDML105' to high arsenite and arsenate stress levels. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:13816-13832. [PMID: 38265595 DOI: 10.1007/s11356-024-32122-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/17/2024] [Indexed: 01/25/2024]
Abstract
Toxicity resulting from high levels of inorganic arsenic (iAs), specifically arsenite (AsIII) and arsenate (AsV), significantly induces oxidative stress and inhibits the growth of rice plants in various ways. Despite its economic importance and significance as a potent elite trait donor in rice breeding programmes, Khao Dawk Mali 105 (KDML105) has received limited attention regarding its responses to As stress. Therefore, this study aimed to comprehensively investigate how KDML105 responds to elevated AsIII and AsV stress levels. In this study, the growth, physiology, biochemical attributes and levels of As stress-associated transcripts were analysed in 45-day-old rice plants after exposing them to media containing 0, 75, 150, 300 and 600 µM AsIII or AsV for 1 and 7 days, respectively. The results revealed that AsIII had a more pronounced impact on the growth and physiological responses of KDML105 compared to AsV at equivalent concentrations. Under elevated AsIII treatment, there was a reduction in growth and photosynthetic efficiency, accompanied by increased levels of hydrogen peroxide (H2O2) and malondialdehyde (MDA). Notably, the total contents of antioxidants, such as proline, phenolics and flavonoids in the shoot, increased by 8.1-fold, 1.4-fold and 1.6-fold, respectively. Additionally, the expression of the OsABCC1 gene in the roots increased by 9.5-fold after exposure to 150 µM AsIII for 1 day. These findings suggest that KDML105's prominent responses to As stress involve sequestering AsIII in vacuoles through the up-regulation of the OsABCC1 gene in the roots, along with detoxifying excessive stress in the leaves through proline accumulation. These responses could serve as valuable traits for selecting As-tolerant rice varieties.
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Affiliation(s)
- Juthathip Janejobkhet
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom, 73000, Thailand
| | - Wasinee Pongprayoon
- Department of Biology, Faculty of Science, Burapha University, Chon Buri, 20131, Thailand
| | - Kullanart Obsuwan
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom, 73000, Thailand
| | - Supakit Jaiyindee
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom, 73000, Thailand
| | - Sarunyaporn Maksup
- Department of Biology, Faculty of Science, Silpakorn University, Nakhon Pathom, 73000, Thailand.
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9
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Xu X, Sun SK, Zhang W, Tang Z, Zhao FJ. Editing Silicon Transporter Genes to Reduce Arsenic Accumulation in Rice. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:1976-1985. [PMID: 38232111 DOI: 10.1021/acs.est.3c10763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Rice is a dominant source of inorganic arsenic (As) exposure for populations consuming rice as a staple food. Decreasing As accumulation in rice grain is important for improving food safety. Arsenite [As(III)], the main form of As in paddy soil porewater, is taken up inadvertently by OsLsi1 and OsLsi2, the two key transporters for silicon (Si) uptake in rice roots. Here, we investigated whether editing OsLsi1 or OsLsi2 can decrease As accumulation in rice grain without compromising grain yield. We used the CRISPR-Cas9 technology to edit the promoter region of OsLsi1 and the C-terminal coding sequence of OsLsi1 and OsLsi2, and we generated a total of 27 mutants. Uptake and accumulation of Si and As were evaluated in both short-term hydroponic experiments and in a paddy field. Deletion of 1.2-2 kb of the OsLsi1 promoter suppressed OsLsi1 expression in roots and Si uptake markedly and did not affect As(III) uptake or grain As concentration. Some of the OsLsi1 and OsLsi2 coding sequence mutants showed large decreases in the uptake of Si and As(III) as well as large decreases in Si accumulation in rice husks. However, only OsLsi2 mutants showed significant decreases (by up to 63%) in the grain total As concentration. Editing OsLsi2 mainly affected the accumulation of inorganic As in rice grain with little effect on the accumulation of dimethylarsenate (DMA). Grain yields of the OsLsi2 mutants were comparable to those of the wild type. Editing OsLsi2 provides a promising way to reduce As accumulation in rice grain without compromising the grain yield.
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Affiliation(s)
- Xuejie Xu
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing210095, China
| | - Sheng-Kai Sun
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing210095, China
| | - Wenwen Zhang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing210095, China
| | - Zhu Tang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing210095, China
| | - Fang-Jie Zhao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and Utilization, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing210095, China
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Asgher M, Rehaman A, Nazar Ul Islam S, Khan NA. Multifaceted roles of silicon nano particles in heavy metals-stressed plants. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 341:122886. [PMID: 37952923 DOI: 10.1016/j.envpol.2023.122886] [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: 05/31/2023] [Revised: 10/16/2023] [Accepted: 11/05/2023] [Indexed: 11/14/2023]
Abstract
Heavy metal (HM) contamination has emerged as one of the most damaging abiotic stress factors due to their prominent release into the environment through industrialization and urbanization worldwide. The increase in HMs concentration in soil and the environment has invited attention of researchers/environmentalists to minimize its' impact by practicing different techniques such as application of phytohormones, gaseous molecules, metalloids, and essential nutrients etc. Silicon (Si) although not considered as the essential nutrient, has received more attention in the last few decades due to its involvement in the amelioration of wide range of abiotic stress factors. Silicon is the second most abundant element after oxygen on earth, but is relatively lesser available for plants as it is taken up in the form of mono-silicic acid, Si(OH)4. The scattered information on the influence of Si on plant development and abiotic stress adaptation has been published. Moreover, the use of nanoparticles for maintenance of plant functions under limited environmental conditions has gained momentum. The current review, therefore, summarizes the updated information on Si nanoparticles (SiNPs) synthesis, characterization, uptake and transport mechanism, and their effect on plant growth and development, physiological and biochemical processes and molecular mechanisms. The regulatory connect between SiNPs and phytohormones signaling in counteracting the negative impacts of HMs stress has also been discussed.
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Affiliation(s)
- Mohd Asgher
- Plant Physiology and Biochemistry Laboratory, Department of Botany, Baba Ghulam Shah Badshah University, Rajouri, 185234, India
| | - Abdul Rehaman
- Plant Physiology and Biochemistry Laboratory, Department of Botany, Baba Ghulam Shah Badshah University, Rajouri, 185234, India
| | - Syed Nazar Ul Islam
- Plant Physiology and Biochemistry Laboratory, Department of Botany, Baba Ghulam Shah Badshah University, Rajouri, 185234, India
| | - Nafees A Khan
- Plant Physiology and Biochemistry Laboratory, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India.
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11
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Barratt LJ, Franco Ortega S, Harper AL. Identification of candidate regulators of the response to early heat stress in climate-adapted wheat landraces via transcriptomic and co-expression network analyses. FRONTIERS IN PLANT SCIENCE 2024; 14:1252885. [PMID: 38235195 PMCID: PMC10791870 DOI: 10.3389/fpls.2023.1252885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 11/29/2023] [Indexed: 01/19/2024]
Abstract
Introduction Climate change is likely to lead to not only increased global temperatures but also a more variable climate where unseasonal periods of heat stress are more prevalent. This has been evidenced by the observation of spring-time temperatures approaching 40°C in some of the main spring-wheat producing countries, such as the USA, in recent years. With an optimum growth temperature of around 20°C, wheat is particularly prone to damage by heat stress. A warming climate with increasingly common fluctuations in temperature therefore threatens wheat crops and subsequently the lives and livelihoods of billions of people who depend on the crop for food. To futureproof wheat against a variable climate, a better understanding of the response to early heat stress is required. Methods Here, we utilised DESeq2 to identify 7,827 genes which were differentially expressed in wheat landraces after early heat stress exposure. Candidate hub genes, which may regulate the transcriptional response to early heat stress, were identified via weighted gene co-expression network analysis (WGCNA), and validated by qRT-PCR. Results Two of the most promising candidate hub genes (TraesCS3B02G409300 and TraesCS1B02G384900) may downregulate the expression of genes involved in the drought, salinity, and cold responses-genes which are unlikely to be required under heat stress-as well as photosynthesis genes and stress hormone signalling repressors, respectively. We also suggest a role for a poorly characterised sHSP hub gene (TraesCS4D02G212300), as an activator of the heat stress response, potentially inducing the expression of a vast suite of heat shock proteins and transcription factors known to play key roles in the heat stress response. Discussion The present work represents an exploratory examination of the heat-induced transcriptional change in wheat landrace seedlings and identifies several candidate hub genes which may act as regulators of this response and, thus, may be targets for breeders in the production of thermotolerant wheat varieties.
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Affiliation(s)
| | | | - Andrea L. Harper
- Centre for Novel Agricultural Products (CNAP), Department of Biology, University of York, York, United Kingdom
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12
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Etesami H, Jeong BR, Maathuis FJM, Schaller J. Exploring the potential: Can arsenic (As) resistant silicate-solubilizing bacteria manage the dual effects of silicon on As accumulation in rice? THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166870. [PMID: 37690757 DOI: 10.1016/j.scitotenv.2023.166870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 08/31/2023] [Accepted: 09/04/2023] [Indexed: 09/12/2023]
Abstract
Rice (Oryza sativa L.) cultivation in regions marked by elevated arsenic (As) concentrations poses significant health concerns due to As uptake by the plant and its subsequent entry into the human food chain. With rice serving as a staple crop for a substantial share of the global population, addressing this issue is critical for food security. In flooded paddy soils, where As availability is pronounced, innovative strategies to reduce As uptake and enhance agricultural sustainability are mandatory. Silicon (Si) and Si nanoparticles have emerged as potential candidates to mitigate As accumulation in rice. However, their effects on As uptake exhibit complexity, influenced by initial Si levels in the soil and the amount of Si introduced through fertilization. While low Si additions may inadvertently increase As uptake, higher Si concentrations may alleviate As uptake and toxicity. The interplay among existing Si and As availability, Si supplementation, and soil biogeochemistry collectively shapes the outcome. Adding water-soluble Si fertilizers (e.g., Na2SiO3 and K2SiO3) has demonstrated efficacy in mitigating As toxicity stress in rice. Nonetheless, the expense associated with these fertilizers underscores the necessity for low cost innovative solutions. Silicate-solubilizing bacteria (SSB) resilient to As hold promise by enhancing Si availability by accelerating mineral dissolution within the rhizosphere, thereby regulating the Si biogeochemical cycle in paddy soils. Promoting SSB could make cost-effective Si sources more soluble and, consequently, managing the intricate interplay of Si's dual effects on As accumulation in rice. This review paper offers a comprehensive exploration of Si's nuanced role in modulating As uptake by rice, emphasizing the potential synergy between As-resistant SSB and Si availability enhancement. By shedding light on this interplay, we aspire to shed light on an innovative attempt for reducing As accumulation in rice while advancing agricultural sustainability.
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Affiliation(s)
| | - Byoung Ryong Jeong
- Division of Applied Life Science, Graduate School, Gyeongsang National University, Republic of Korea 52828
| | | | - Jörg Schaller
- "Silicon Biogeochemistry" Working Group, Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, Germany
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13
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Panchal P, Bhatia C, Chen Y, Sharma M, Bhadouria J, Verma L, Maurya K, Miller AJ, Giri J. A citrate efflux transporter important for manganese distribution and phosphorus uptake in rice. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023; 116:1748-1765. [PMID: 37715733 DOI: 10.1111/tpj.16463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 08/26/2023] [Accepted: 09/01/2023] [Indexed: 09/18/2023]
Abstract
The plant citrate transporters, functional in mineral nutrient uptake and homeostasis, usually belong to the multidrug and toxic compound extrusion transporter family. We identified and functionally characterized a rice (Oryza sativa) citrate transporter, OsCT1, which differs from known plant citrate transporters and is structurally close to rice silicon transporters. Domain analysis depicted that OsCT1 carries a bacterial citrate-metal transporter domain, CitMHS. OsCT1 showed citrate efflux activity when expressed in Xenopus laevis oocytes and is localized to the cell plasma membrane. It is highly expressed in the shoot and reproductive tissues of rice, and its promoter activity was visible in cells surrounding the vasculature. The OsCT1 knockout (KO) lines showed a reduced citrate content in the shoots and the root exudates, whereas overexpression (OE) line showed higher citrate exudation from their roots. Further, the KO and OE lines showed variations in the manganese (Mn) distribution leading to changes in their agronomical traits. Under deficient conditions (Mn-sufficient conditions followed by 8 days of 0 μm MnCl2 · 4H2 O treatment), the supply of manganese towards the newer leaf was found to be obstructed in the KO line. There were no significant differences in phosphorus (P) distribution; however, P uptake was reduced in the KO and increased in OE lines at the vegetative stage. Further, experiments in Xenopus oocytes revealed that OsCT1 could efflux citrate with Mn. In this way, we provide insights into a mechanism of citrate-metal transport in plants and its role in mineral homeostasis, which remains conserved with their bacterial counterparts.
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Affiliation(s)
- Poonam Panchal
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Chitra Bhatia
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Yi Chen
- Biochemistry and Metabolism Department, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Meenakshi Sharma
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Jyoti Bhadouria
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Lokesh Verma
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Kanika Maurya
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Anthony J Miller
- Biochemistry and Metabolism Department, John Innes Centre, Norwich Research Park, Norwich, NR4 7UH, UK
| | - Jitender Giri
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, 110067, India
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14
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Mitani-Ueno N, Yamaji N, Huang S, Yoshioka Y, Miyaji T, Ma JF. A silicon transporter gene required for healthy growth of rice on land. Nat Commun 2023; 14:6522. [PMID: 37857615 PMCID: PMC10587147 DOI: 10.1038/s41467-023-42180-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 10/03/2023] [Indexed: 10/21/2023] Open
Abstract
Silicon (Si) is the most abundant mineral element in the earth's crust. Some plants actively accumulate Si as amorphous silica (phytoliths), which can protect plants from stresses. Here, we report a gene (SIET4) that is required for the proper accumulation and cell-specific deposition of Si in rice and show that it is essential for normal growth. SIET4 is constitutively expressed in leaves and encodes a Si transporter. SlET4 polarly localizes at the distal side of epidermal cells and cells surrounding the bulliform cells (motor cells) of the leaf blade, where Si is deposited. Knockout of SIET4 leads to the death of rice in the presence but not absence of Si. Further analysis shows that SIET4 knockout induces abnormal Si deposition in mesophyll cells and the induction of hundreds of genes related to various stress responses. These results indicate that SIET4 is required for the proper export of Si from leaf cells to the leaf surface and for the healthy growth of rice on land.
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Affiliation(s)
- Namiki Mitani-Ueno
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Naoki Yamaji
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Sheng Huang
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Yuma Yoshioka
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Tsushima Naka 1-1-1, Kita Okayama, 700-8530, Japan
| | - Takaaki Miyaji
- Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Tsushima Naka 1-1-1, Kita Okayama, 700-8530, Japan
- Department of Genomics & Proteomics, Advanced Science Research Center, Okayama University, Tsushima Naka 1-1-1, Kita Okayama, 700-8530, Japan
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan.
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15
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Flores-Iga G, Lopez-Ortiz C, Gracia-Rodriguez C, Almeida A, Nimmakayala P, Reddy UK, Balagurusamy N. A Genome-Wide Identification and Comparative Analysis of the Heavy-Metal-Associated Gene Family in Cucurbitaceae Species and Their Role in Cucurbita pepo under Arsenic Stress. Genes (Basel) 2023; 14:1877. [PMID: 37895226 PMCID: PMC10606463 DOI: 10.3390/genes14101877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/21/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
The heavy-metal-associated (HMA) proteins are a class of PB1-type ATPases related to the intracellular transport and detoxification of metals. However, due to a lack of information regarding the HMA gene family in the Cucurbitaceae family, a comprehensive genome-wide analysis of the HMA family was performed in ten Cucurbitaceae species: Citrullus amarus, Citrullus colocynthis, Citrullus lanatus, Citrullus mucosospermus, Cucumis melo, Cucumis sativus, Cucurbita maxima, Cucurbita moschata, Cucurbita pepo, and Legenaria siceraria. We identified 103 Cucurbit HMA proteins with various members, ranging from 8 (Legenaria siceraria) to 14 (Cucurbita pepo) across species. The phylogenetic and structural analysis confirmed that the Cucurbitaceae HMA protein family could be further classified into two major clades: Zn/Co/Cd/Pb and Cu/Ag. The GO-annotation-based subcellular localization analysis predicted that all HMA gene family members were localized on membranes. Moreover, the analysis of conserved motifs and gene structure (intron/exon) revealed the functional divergence between clades. The interspecies microsynteny analysis demonstrated that maximum orthologous genes were found between species of the Citrullus genera. Finally, nine candidate HMA genes were selected, and their expression analysis was carried out via qRT-PCR in root, leaf, flower, and fruit tissues of C. pepo under arsenic stress. The expression pattern of the CpeHMA genes showed a distinct pattern of expression in root and shoot tissues, with a remarkable expression of CpeHMA6 and CpeHMA3 genes from the Cu/Ag clade. Overall, this study provides insights into the functional analysis of the HMA gene family in Cucurbitaceae species and lays down the basic knowledge to explore the role and mechanism of the HMA gene family to cope with arsenic stress conditions.
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Affiliation(s)
- Gerardo Flores-Iga
- Laboratorio de Biorremediación, Facultad de Ciencias Biológicas, Universidad Autónoma de Coahuila, Torreón 27275, Coahuila, México; (G.F.-I.); (C.G.-R.)
- Gus R. Douglass Institute, Department of Biology, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (P.N.)
| | - Carlos Lopez-Ortiz
- Gus R. Douglass Institute, Department of Biology, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (P.N.)
| | - Celeste Gracia-Rodriguez
- Laboratorio de Biorremediación, Facultad de Ciencias Biológicas, Universidad Autónoma de Coahuila, Torreón 27275, Coahuila, México; (G.F.-I.); (C.G.-R.)
- Gus R. Douglass Institute, Department of Biology, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (P.N.)
| | - Aldo Almeida
- Department of Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg, Denmark;
| | - Padma Nimmakayala
- Gus R. Douglass Institute, Department of Biology, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (P.N.)
| | - Umesh K. Reddy
- Gus R. Douglass Institute, Department of Biology, West Virginia State University, Institute, WV 25112-1000, USA; (C.L.-O.); (P.N.)
| | - Nagamani Balagurusamy
- Laboratorio de Biorremediación, Facultad de Ciencias Biológicas, Universidad Autónoma de Coahuila, Torreón 27275, Coahuila, México; (G.F.-I.); (C.G.-R.)
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16
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Thorne SJ, Maathuis FJM, Hartley SE. Induction of silicon defences in wheat landraces is local, not systemic, and driven by mobilization of soluble silicon to damaged leaves. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:5363-5373. [PMID: 37314063 DOI: 10.1093/jxb/erad224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 06/13/2023] [Indexed: 06/15/2023]
Abstract
In response to herbivory, many grasses, including crops such as wheat, accumulate significant levels of silicon (Si) as an antiherbivore defence. Damage-induced increases in Si can be localized in damaged leaves or be more systemic, but the mechanisms leading to these differences in Si distribution remain untested. Ten genetically diverse wheat landraces (Triticum aestivum) were used to assess genotypic variation in Si induction in response to mechanical damage and how this was affected by exogenous Si supply. Total and soluble Si levels were measured in damaged and undamaged leaves as well as in the phloem to test how Si was allocated to different parts of the plant after damage. Localized, but not systemic, induction of Si defences occurred, and was more pronounced when plants had supplemental Si. Damaged plants had significant increases in Si concentration in their damaged leaves, while the Si concentration in undamaged leaves decreased, such that there was no difference in the average Si concentration of damaged and undamaged plants. The increased Si in damaged leaves was due to the redirection of soluble Si, present in the phloem, from undamaged to damaged plant parts, potentially a more cost-effective defence mechanism for plants than increased Si uptake.
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Affiliation(s)
- Sarah J Thorne
- Plants, Photosynthesis, and Soil, School of Biosciences, University of Sheffield, Sheffield, S10 2TN, UK
| | | | - Susan E Hartley
- Plants, Photosynthesis, and Soil, School of Biosciences, University of Sheffield, Sheffield, S10 2TN, UK
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Shasmita, Swain BB, Mishra S, Mohapatra PK, Naik SK, Mukherjee AK. Chemopriming for induction of disease resistance against pathogens in rice. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 334:111769. [PMID: 37328072 DOI: 10.1016/j.plantsci.2023.111769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 06/09/2023] [Accepted: 06/11/2023] [Indexed: 06/18/2023]
Abstract
Rice is an important grain crop of Asian population. Different fungal, bacterial and viral pathogens cause large reduction in rice grain production. Use of chemical pesticides, to provide protection against pathogens, has become incomplete due to pathogens resistance and is cause of environmental concerns. Therefore, induction of resistance in rice against pathogens via biopriming and chemopriming with safe and novel agents has emerged on a global level as ecofriendly alternatives that provide protection against broad spectrum of rice pathogens without any significant yield penalty. In the past three decades, a number of chemicals such as silicon, salicylic acid, vitamins, plant extract, phytohormones, nutrients etc. have been used to induce defense against bacterial, fungal and viral rice pathogens. From the detailed analysis of abiotic agents used, it has been observed that silicon and salicylic acid are two potential chemicals for inducing resistance against fungal and bacterial diseases in rice, respectively. However, an inclusive evaluation of the potential of different abiotic agents to induce resistance against rice pathogens is lacking due to which the studies on induction of defense against rice pathogens via chemopriming has become disproportionate and discontinuous. The present review deals with a comprehensive analysis of different abiotic agents used to induce defense against rice pathogens, their mode of application, mechanism of defense induction and the effect of defense induction on grain yield. It also provides an account of unexplored areas, which might be taken into attention to efficiently manage rice diseases. DATA AVAILABILITY STATEMENT: Data sharing not applicable to this article as no datasets were generated or analysed during the current study.
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Affiliation(s)
- Shasmita
- Molecular Plant Pathology Laboratory, Division of Crop Protection, ICAR-National Rice Research Institute, Cuttack 753006, Odisha, India; Department of Botany, Ravenshaw University, Cuttack 753003, Odisha, India
| | | | - Smrutirekha Mishra
- Department of Botany, Ravenshaw University, Cuttack 753003, Odisha, India
| | | | | | - Arup Kumar Mukherjee
- Molecular Plant Pathology Laboratory, Division of Crop Protection, ICAR-National Rice Research Institute, Cuttack 753006, Odisha, India.
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18
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Anjum M, Prakash NB. Production of phytolith and PhytOC and distribution of extractable Si Pools in aerobic rice as influenced by different Si sources. FRONTIERS IN PLANT SCIENCE 2023; 14:1146416. [PMID: 37692442 PMCID: PMC10486906 DOI: 10.3389/fpls.2023.1146416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 08/01/2023] [Indexed: 09/12/2023]
Abstract
Phytoliths are composed of 66 to 91% SiO2 and 1 to 6% organic carbon (C) known as phytolith occluded carbon (PhytOC). PhytOC is critical for long-term C storage in the agroecosystem. A field experiment was carried out to investigate the effect of three different sources of exogenous Si, i.e., diatomaceous earth (DE), silicic acid (SA) and rice husk biochar (RHB) on 1) plant phytolith, C content in phytolith and PhytOC content in different rice organs; 2) relationship between plant phytolith, C content in phytolith, PhytOC content, and soil properties (soil physicochemical properties and readily soluble silicon pools). Different Si sources produced significantly higher phytolith, PhytOC content, and readily soluble Si pools (CCSi, AASi, and ASi) than the control (RDF), with treatment receiving 4 t RHB ha-1 outperforming the other treatments. Phytolith and PhytOC production were found to be significantly correlated to soil organic carbon (OC), available nitrogen (N) and potassium (K), 0.01 M CaCl2 extractable Si (CCSi) and amorphous Si (ASi) content in the soil. Redundancy analysis showed that treatments receiving 4 t RHB ha-1 have a stronger relationship with the CCSi and ASi which majorly contributed to the higher phytolith and PhytOC production. Thus, practices such as Si fertilizers and RHB application have a high potential for phytolith production and PhytOC sequestration, a critical mechanism of the global biogeochemical C sink.
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Affiliation(s)
- Mohsina Anjum
- Plant Nutrition Laboratory, Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, Bangalore, India
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19
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Chaganti C, Phule AS, Chandran LP, Sonth B, Kavuru VPB, Govindannagari R, Sundaram RM. Silicate solubilizing and plant growth promoting bacteria interact with biogenic silica to impart heat stress tolerance in rice by modulating physiology and gene expression. Front Microbiol 2023; 14:1168415. [PMID: 37520375 PMCID: PMC10374332 DOI: 10.3389/fmicb.2023.1168415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/22/2023] [Indexed: 08/01/2023] Open
Abstract
Heat stress caused due to increasing warming climate has become a severe threat to global food production including rice. Silicon plays a major role in improving growth and productivity of rice by aiding in alleviating heat stress in rice. Soil silicon is only sparingly available to the crops can be made available by silicate solubilizing and plant-growth-promoting bacteria that possess the capacity to solubilize insoluble silicates can increase the availability of soluble silicates in the soil. In addition, plant growth promoting bacteria are known to enhance the tolerance to abiotic stresses of plants, by affecting the biochemical and physiological characteristics of plants. The present study is intended to understand the role of beneficial bacteria viz. Rhizobium sp. IIRR N1 a silicate solublizer and Gluconacetobacter diazotrophicus, a plant growth promoting bacteria and their interaction with insoluble silicate sources on morpho-physiological and molecular attributes of rice (Oryza sativa L.) seedlings after exposure to heat stress in a controlled hydroponic system. Joint inoculation of silicates and both the bacteria increased silicon content in rice tissue, root and shoot biomass, significantly increased the antioxidant enzyme activities (viz. superoxidase dismutase, catalase and ascorbate peroxidase) compared to other treatments with sole application of either silicon or bacteria. The physiological traits (viz. chlorophyll content, relative water content) were also found to be significantly enhanced in presence of silicates and both the bacteria after exposure to heat stress conditions. Expression profiling of shoot and root tissues of rice seedlings revealed that seedlings grown in the presence of silicates and both the bacteria exhibited higher expression of heat shock proteins (HSPs viz., OsHsp90, OsHsp100 and 60 kDa chaperonin), hormone-related genes (OsIAA6) and silicon transporters (OsLsi1 and OsLsi2) as compared to seedlings treated with either silicates or with the bacteria alone. The results thus reveal the interactive effect of combined application of silicates along with bacteria Rhizobium sp. IIRR N1, G. diazotrophicus inoculation not only led to augmented silicon uptake by rice seedlings but also influenced the plant biomass and elicited higher expression of HSPs, hormone-related and silicon transporter genes leading to improved tolerance of seedling to heat stress.
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20
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Zexer N, Kumar S, Elbaum R. Silica deposition in plants: scaffolding the mineralization. ANNALS OF BOTANY 2023; 131:897-908. [PMID: 37094329 PMCID: PMC10332400 DOI: 10.1093/aob/mcad056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND Silicon and aluminium oxides make the bulk of agricultural soils. Plants absorb dissolved silicon as silicic acid into their bodies through their roots. The silicic acid moves with transpiration to target tissues in the plant body, where it polymerizes into biogenic silica. Mostly, the mineral forms on a matrix of cell wall polymers to create a composite material. Historically, silica deposition (silicification) was supposed to occur once water evaporated from the plant surface, leaving behind an increased concentration of silicic acid within plant tissues. However, recent publications indicate that certain cell wall polymers and proteins initiate and control the extent of plant silicification. SCOPE Here we review recent publications on the polymers that scaffold the formation of biogenic plant silica, and propose a paradigm shift from spontaneous polymerization of silicic acid to dedicated active metabolic processes that control both the location and the extent of the mineralization. CONCLUSION Protein activity concentrates silicic acid beyond its saturation level. Polymeric structures at the cell wall stabilize the supersaturated silicic acid and allow its flow with the transpiration stream, or bind it and allow its initial condensation. Silica nucleation and further polymerization are enabled on a polymeric scaffold, which is embedded within the mineral. Deposition is terminated once free silicic acid is consumed or the chemical moieties for its binding are saturated.
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Affiliation(s)
- Nerya Zexer
- Department of Biology, The Pennsylvania State University, University Park, PA 16802, USA
| | - Santosh Kumar
- Department of Biological Sciences, Birla Institute of Technology and Science-Pilani, K. K. Birla Goa Campus, Zuarinagar 403726, Goa, India
- School of Biotechnology, Kalinga Institute of Industrial Technology, Bhubaneswar 751024, Odisha, India
| | - Rivka Elbaum
- R. H. Smith Institute of Plant Sciences and Genetics in Agriculture, Robert H. Smith Faculty of Agriculture, Food and Environment, Hebrew University of Jerusalem, Rehovot 7610001, Israel
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Puppe D, Kaczorek D, Stein M, Schaller J. Silicon in Plants: Alleviation of Metal(loid) Toxicity and Consequential Perspectives for Phytoremediation. PLANTS (BASEL, SWITZERLAND) 2023; 12:2407. [PMID: 37446968 DOI: 10.3390/plants12132407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/14/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023]
Abstract
For the majority of higher plants, silicon (Si) is considered a beneficial element because of the various favorable effects of Si accumulation in plants that have been revealed, including the alleviation of metal(loid) toxicity. The accumulation of non-degradable metal(loid)s in the environment strongly increased in the last decades by intensified industrial and agricultural production with negative consequences for the environment and human health. Phytoremediation, i.e., the use of plants to extract and remove elemental pollutants from contaminated soils, has been commonly used for the restoration of metal(loid)-contaminated sites. In our viewpoint article, we briefly summarize the current knowledge of Si-mediated alleviation of metal(loid) toxicity in plants and the potential role of Si in the phytoremediation of soils contaminated with metal(loid)s. In this context, a special focus is on metal(loid) accumulation in (soil) phytoliths, i.e., relatively stable silica structures formed in plants. The accumulation of metal(loid)s in phytoliths might offer a promising pathway for the long-term sequestration of metal(loid)s in soils. As specific phytoliths might also represent an important carbon sink in soils, phytoliths might be a silver bullet in the mitigation of global change. Thus, the time is now to combine Si/phytolith and phytoremediation research. This will help us to merge the positive effects of Si accumulation in plants with the advantages of phytoremediation, which represents an economically feasible and environmentally friendly way to restore metal(loid)-contaminated sites.
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Affiliation(s)
- Daniel Puppe
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, Germany
| | - Danuta Kaczorek
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, Germany
- Department of Soil Environment Sciences, Warsaw University of Life Sciences (SGGW), 02-776 Warsaw, Poland
| | - Mathias Stein
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, Germany
| | - Jörg Schaller
- Leibniz Centre for Agricultural Landscape Research (ZALF), 15374 Müncheberg, Germany
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22
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Liu L, Song Z, Tang J, Li Q, Sarkar B, Ellam RM, Wang Y, Zhu X, Bolan N, Wang H. New insight into the mechanisms of preferential encapsulation of metal(loid)s by wheat phytoliths under silicon nanoparticle amendment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 875:162680. [PMID: 36889405 DOI: 10.1016/j.scitotenv.2023.162680] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/02/2023] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Abstract
Silicon nanoparticles (SiNPs) have been widely used to immobilize toxic trace metal(loid)s (TTMs) in contaminated croplands. However, the effect and mechanisms of SiNP application on TTM transportation in response to phytolith formation and phytolith-encapsulated-TTM (PhytTTM) production in plants are unclear. This study demonstrates the promotion effect of SiNP amendment on phytolith development and explores the associated mechanisms of TTM encapsulation in wheat phytoliths grown on multi-TTM contaminated soil. The bioconcentration factors between organic tissues and phytoliths of As and Cr (> 1) were significantly higher than those of Cd, Pb, Zn and Cu, and about 10 % and 40 % of the total As and Cr that bioaccumulated in wheat organic tissues were encapsulated into the corresponding phytoliths under high-level SiNP treatment. These observations demonstrate that the potential interaction of plant silica with TTMs is highly variable among elements, with As and Cr being the two most strongly concentrated TTMs in the phytoliths of wheat treated with SiNPs. The qualitative and semi-quantitative analyses of the phytoliths extracted from wheat tissues suggest that the high pore space and surface area (≈ 200 m2 g-1) of phytolith particles could have contributed to the embedding of TTMs during silica gel polymerization and concentration to form PhytTTMs. The abundant SiO functional groups and high silicate-minerals in phytoliths are dominant chemical mechanisms for the preferential encapsulation of TTMs (i.e., As and Cr) by wheat phytoliths. Notably, the organic carbon and bioavailable Si of soils and the translocation of minerals from soil to plant aerial parts can impact TTM sequestration by phytoliths. Thus, this study has implications for the distribution or detoxification of TTMs in plants via preferential PhytTTM production and biogeochemical cycling of PhytTTMs in contaminated cropland following exogenous Si supplementation.
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Affiliation(s)
- Linan Liu
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China; Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Zhaoliang Song
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China.
| | - Jingchun Tang
- College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Qiang Li
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Binoy Sarkar
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Robert Mark Ellam
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Yangyang Wang
- National Demonstration Center for Environmental and Planning, College of Environment & Planning, Henan University, Kaifeng 475004, China
| | - Xiangyu Zhu
- Institute of Surface-Earth System Science, School of Earth System Science, Tianjin University, Tianjin 300072, China
| | - Nanthi Bolan
- UWA School of Agriculture and Environment, The University of Western Australia, Perth, WA 6001, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6001, Australia
| | - Hailong Wang
- School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; School of Environmental and Resource Sciences, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
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23
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Gowda RSR, Sharma S, Gill RS, Mangat GS, Bhatia D. Genome wide association studies and candidate gene mining for understanding the genetic basis of straw silica content in a set of Oryza nivara (Sharma et Shastry) accessions. FRONTIERS IN PLANT SCIENCE 2023; 14:1174266. [PMID: 37324704 PMCID: PMC10266271 DOI: 10.3389/fpls.2023.1174266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 04/25/2023] [Indexed: 06/17/2023]
Abstract
Rice is a high-silica (SiO2·nH2O) accumulator. Silicon (Si) is designated as a beneficial element associated with multiple positive effects on crops. However, the presence of high silica content is detrimental to rice straw management, hampering its use as animal feed and as raw material in multiple industries. Rice straw management is a serious concern in north-western India, and it is eventually burned in situ by farmers, contributing to air pollution. A practical solution could lie in reducing the silica content in rice while also attaining sound plant growth. A set of 258 Oryza nivara accessions along with 25 cultivated varieties of Oryza sativa was used to assess the variation in straw silica content using the molybdenum blue colorimetry method. A large continuous variation was observed for straw silica content in O. nivara accessions, ranging from 5.08% to 16%, while it varied from 6.18% to 15.81% in the cultivated varieties. The O. nivara accessions containing 43%-54% lower straw silica content than the currently prominent cultivated varieties in the region were identified. A set of 22,528 high-quality single nucleotide polymorphisms (SNPs) among 258 O. nivara accessions was used for estimating population structure and genome-wide association studies (GWAS). A weak population structure with 59% admixtures was identified among O. nivara accessions. Further, multi-locus GWAS revealed the presence of 14 marker-trait associations (MTAs) for straw silica content, with six of them co-localizing with previously reported quantitative trait loci (QTL). Twelve out of 14 MTAs showed statistically significant allelic differences. Thorough candidate gene analyses revealed the presence of promising candidate genes, including those encoding the ATP-binding cassette (ABC) transporter, Casparian thickening, multi-drug and toxin extrusion (MATE) protein, F-box, and MYB-transcription factors. Besides, ortho-QTLs among rice and maize genomes were identified, which could open ways for further genetic analysis of this trait. The findings of the study could aid in further understanding and characterizing genes for Si transport and regulation in the plant body. The donors carrying the alleles for lower straw silica content can be used in further marker-assisted breeding programs to develop rice varieties with lower silica content and higher yield potential.
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Affiliation(s)
- Rakshith S. R. Gowda
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | - Sandeep Sharma
- Department of Soil Science, Punjab Agricultural University, Ludhiana, India
| | - Ranvir Singh Gill
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | - Gurjit Singh Mangat
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | - Dharminder Bhatia
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
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24
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Manivannan A, Soundararajan P, Jeong BR. Editorial: Silicon: A "Quasi-Essential" element's role in plant physiology and development. FRONTIERS IN PLANT SCIENCE 2023; 14:1157185. [PMID: 37008464 PMCID: PMC10053781 DOI: 10.3389/fpls.2023.1157185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/03/2023] [Indexed: 06/19/2023]
Affiliation(s)
- Abinaya Manivannan
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Prabhakaran Soundararajan
- Evolutionary Developmental (Evo-Devo) Genetics Laboratory, National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, India
| | - Byoung Ryong Jeong
- Department of Horticulture, Division of Applied Life Science (BK21 Four), Graduate School of Gyeongsang National University, Jinju, Republic of Korea
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, Republic of Korea
- Research Institute of Life Science, Gyeongsang National University, Jinju, Republic of Korea
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25
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Du Y, Zhou J, Chen G, Li X, Fang L, Li F, Yuan Y, Wang X, Yang Y, Dou F. Dark Side of Ammonium Nitrogen in Paddy Soil with Low Organic Matter: Stimulation of Microbial As(V) Reduction and As(III) Transfer from Soil to Rice Grains. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:3670-3680. [PMID: 36799488 DOI: 10.1021/acs.jafc.2c07477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The bioavailability of arsenic (As) is influenced by ammonium (NH4+-N) fertilization, but the underlying mechanisms controlling As transformation in soil-rice systems are still not fully understood. The effects of two NH4+-N fertilizers, urea and NH4HCO3, on the transformation of As in a paddy soil with low organic matter content and transfer in rice plants were investigated. Treatments with urea and NH4HCO3 significantly increased arsenite (As(III)) concentration in porewater, bioavailable As in rhizosphere soil, and the relative abundance of the As(V) respiratory reductase gene (arrA) and As(III) methyltransferase gene (arsM). Furthermore, the relative expression of As transporter genes in rice roots, such as OsLsi1, OsLsi2, and OsLsi3, was upregulated, and the translocation efficiency of As(III) from rice roots to brown rice was promoted. Subsequently, As(III) accumulation in brown rice significantly increased. Therefore, attention should be paid to As-contaminated paddy fields with NH4+-N fertilization.
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Affiliation(s)
- Yanhong Du
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
| | - Jing Zhou
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
| | - Guanhong Chen
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
| | - Xiaomin Li
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety & MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China
| | - Liping Fang
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
| | - Fangbai Li
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
| | - Yuzhen Yuan
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
| | - Xiangqin Wang
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
| | - Yang Yang
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
| | - Fei Dou
- Guangdong Key Laboratory of Integrated Agro-Environmental Pollution Control and Management, Institute of Eco-Environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou 510650, China
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26
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Pham CD, Dang MDT, Ly TB, Tran KD, Vo NT, Do NHN, Mai PT, Le PK. A review of the extraction methods and advanced applications of lignin-silica hybrids derived from natural sources. Int J Biol Macromol 2023; 230:123175. [PMID: 36623624 DOI: 10.1016/j.ijbiomac.2023.123175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 12/18/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023]
Abstract
The global trend of increasing energy demand along the large volume of wastewater generated annually from the paper pulping and cellulose production industries are considered as serious dilemma that may need to be solved within these current decades. Within this discipline, lignin, silica or lignin-silica hybrids attained from biomass material have been considered as prospective candidates for the synthesis of advanced materials. In this study, the roles and linking mechanism between lignin and silica in plants were studied and evaluated. The effects of the extraction method on the quality of the obtained material were summarized to show that depending on the biomass feedstocks, different retrieval processes should be considered. The combination of alkaline treatment and acidic pH adjustment is proposed as an effective method to recover lignin-silica with high applicability for various types of raw materials. From considerations of the advanced applications of lignin and silica materials in environmental remediation, electronic devices and rubber fillers future valorizations hold potential in conductive materials and electrochemistry. Along with further studies, this research could not only contribute to the development of zero-waste manufacturing processes but also propose a solution for the fully exploiting of by-products from agricultural production.
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Affiliation(s)
- Co D Pham
- Refinery and Petrochemicals Technology Research Center (RPTC), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ho Chi Minh City, Viet Nam; Vietnam National University Ho Chi Minh City (VNU-HCM), Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Minh D T Dang
- Vietnam National University Ho Chi Minh City (VNU-HCM), Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Tuyen B Ly
- Refinery and Petrochemicals Technology Research Center (RPTC), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ho Chi Minh City, Viet Nam
| | - Khoi D Tran
- Vietnam National University Ho Chi Minh City (VNU-HCM), Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Nhi T Vo
- Vietnam National University Ho Chi Minh City (VNU-HCM), Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Nga H N Do
- Refinery and Petrochemicals Technology Research Center (RPTC), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ho Chi Minh City, Viet Nam; Vietnam National University Ho Chi Minh City (VNU-HCM), Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Phong T Mai
- Vietnam National University Ho Chi Minh City (VNU-HCM), Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam
| | - Phung K Le
- Refinery and Petrochemicals Technology Research Center (RPTC), Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, Ho Chi Minh City, Viet Nam; Vietnam National University Ho Chi Minh City (VNU-HCM), Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Viet Nam.
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27
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Xu J, Zhang Q, Wang S, Nan Z, Long S, Wu Y, Dong S. Bioavailability, transfer, toxicological effects, and contamination assessment of arsenic and mercury in soil-corn systems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:10063-10078. [PMID: 36066802 DOI: 10.1007/s11356-022-22847-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
Sewage irrigation has solved the shortage of agricultural water and increased the content of heavy metal(loid)s (HMs) in soil-crop systems, which harms human health via the food chain. In this study, 43 pairs of soil and corn samples (leaf, stem1, stem2, stem3, root, husk, grain, and corncob) were collected in the Dongdagou (DDG) and Xidagou (XDG) streams of Baiyin City. Fraction and transfer of As and Hg were investigated, and toxicological effects and contamination were assessed in soil-corn systems. The results showed that the mean values of As and Hg in soil were 33.79 mg/kg and 0.96 mg/kg, respectively, which exceeded the soil background values in Gansu Province. As and Hg are mainly dominated by the residual fraction. Total and bioavailability contributed significantly to As and Hg accumulation in corn, with root, stem3, and leaf accumulating more strongly. The results based on the bioavailability concentration soil-corn transfer factor indicated that As and Hg tended to accumulate more in the root, stem3, and leaf and less in grain, and further assessment of the human health effects of consuming contaminated cron is needed. Scanning electron microscope (SEM) and Fourier transform infrared (FTIR) results showed that As and Hg were not significantly toxic to corn parts, indicating morphology. As and Hg were bound to hydroxyl groups in the outer epidermal cell wall of the roots, thereby reducing upward translocation. The trinity assessment (TA) model results indicated that the most severe contamination was found in root and stem1. The TA provides a practical tool for soil-cron systems and helps develop management strategies to prevent ecological hazards.
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Affiliation(s)
- Jun Xu
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qian Zhang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Department of Environmental Science and Engineering, Sichuan University, Sichuan, 610065, China
| | - Shengli Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Zhongren Nan
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Song Long
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yining Wu
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Suhang Dong
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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28
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Geng X, Ge B, Liu Y, Wang X, Dong K, Zhang Y, Chen Y, Lu C. Genome-wide identification and functional analysis of silicon transporter family genes in moso bamboo (Phyllostachys edulis). Int J Biol Macromol 2022; 223:1705-1719. [PMID: 36252629 DOI: 10.1016/j.ijbiomac.2022.10.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/21/2022] [Accepted: 10/09/2022] [Indexed: 11/05/2022]
Abstract
Silicon (Si) has crucial effects on plant development and stress resistance. Silicon transporters regulate Si absorption, transport, and distribution in plants. In this study, we identified and characterized the Si transporter gene family of moso bamboo (Phyllostachys edulis) and cloned seven putative Si transporter genes. Moso bamboo Si transporters contain conserved functional domains that mediate the accumulation of considerable amounts of Si. The analysis of gene duplication patterns and divergence times suggested that the expansion of the moso bamboo Si transporter family was mainly due to segmental duplications. The expression of moso bamboo Si transporter genes, which varied among organs, was significantly modulated by Si treatments. The subcellular localization analysis showed that Si transporters are plasma membrane proteins. The Si content increased in transgenic Arabidopsis overexpressing PeLsi1-1 or PeLsi1-2, which affected vegetative and reproductive growth. Our single-particle tracking analysis revealed the four diffusion modes of PeLsi1-1 on the plasma membrane. Moreover, the particle velocity, dwell time, and motion range of PeLsi1-1 decreased in response to Si treatments. The results of this study will further clarify the molecular mechanisms underlying Si absorption and accumulation in bamboo plants.
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Affiliation(s)
- Xin Geng
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Bohao Ge
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Yanjing Liu
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Xiaojing Wang
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Kuo Dong
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
| | - Yuan Zhang
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
| | - Yuzhen Chen
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
| | - Cunfu Lu
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China.
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29
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Duan H, Chang M, Lin H, Huang H, Feng W, Guo W, Wu L, Chen Y, Zhang R. Two-dimensional silicene photodynamic tumor-targeting nanomedicine. Mater Today Bio 2022; 16:100393. [PMID: 36042851 PMCID: PMC9420369 DOI: 10.1016/j.mtbio.2022.100393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/30/2022] [Accepted: 08/02/2022] [Indexed: 12/09/2022]
Abstract
Since the innovative development of photosensitizers (PSs) is pivotal prerequisite for the successful clinical translation of photodynamic therapy (PDT), the unresolved challenges of classical PSs such as photobleaching, poor bioavailability, lack of tumor selectivity encourage the exploitation of new-generation PSs. In this work, we develop silicene nanosheets with unparalleled physiochemical nature and intriguing biocompatibility as the distinct two-dimensional (2D) nanoscale photosensitizer based on the mechanism of wet-chemical synthetic approach to achieve effective PDT-based tumor nanotherapy. The generation capacities of singlet oxygen (1O2) in different atmospheres have been systematically explored in depth. Furthermore, the conjunction of c (RGDyC) onto 2D silicene nanosheets (denoted as SRGD) endows the SRGD nanomedicines with specific targeting properties to αvβ3 integrin-overexpressed cancer cells, accomplishing in vivo and in vitro potent tumor growth inhibition efficiency. More notably, the excellent light absorption capacity of 2D silicene enables the tumor-specific photoacoustic imaging for potentiating the therapeutic guidance and monitoring. This paradigm can inspire the future design and applications of 2D silicene-based cancer-theranostic nanoplatform in biology and medicine. Fabrication of 2D silicene based on a facile and efficient wet-chemical synthesis strategy. Desirable 1O2 generation by 2D silicene for inducing mitochondrial depolarization and cancer-cell apoptosis. c (RGDyC)-targeting engineering for endowing 2D silicene photodynamic nanomedicines with specific tumor-targeting performance. 2D silicene-targeting nanomedicine with the specific capability and high performance for photoacoustic imaging-guided photodynamic tumor nanotherapy.
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Affiliation(s)
- Huican Duan
- Department of Ultrasound, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China
| | - Meiqi Chang
- Central Laboratory of Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200071, PR China
| | - Han Lin
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, PR China
| | - Hui Huang
- Materdicine Lab, School of Life Sciences, Shanghai University, 200444, PR China
| | - Wei Feng
- Materdicine Lab, School of Life Sciences, Shanghai University, 200444, PR China
| | - Weitao Guo
- Department of Ultrasound, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China
| | - Lina Wu
- Department of Ultrasound, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China
| | - Yu Chen
- Materdicine Lab, School of Life Sciences, Shanghai University, 200444, PR China
| | - Ruifang Zhang
- Department of Cardiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, PR China
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30
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Saitoh Y, Suga M. Structure and function of a silicic acid channel Lsi1. FRONTIERS IN PLANT SCIENCE 2022; 13:982068. [PMID: 36172553 PMCID: PMC9510833 DOI: 10.3389/fpls.2022.982068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/24/2022] [Indexed: 05/26/2023]
Abstract
Silicon is a beneficial element for plant growth and production, especially in rice. Plant roots take up silicon in the form of silicic acid. Silicic acid channels, which belong to the NIP subfamily of aquaporins, are responsible for silicic acid uptake. Accumulated experimental results have deepened our understanding of the silicic acid channel for its uptake mechanism, physiological function, localization, and other aspects. However, how the silicic acid channel efficiently and selectively permeates silicic acid remains to be elucidated. Recently reported crystal structures of the silicic acid channel enabled us to discuss the mechanism of silicic acid uptake by plant roots at an atomic level. In this mini-review, we focus on the crystal structures of the silicic acid channel and provide a detailed description of the structural determinants of silicic acid permeation and its transport mechanism, which are crucial for the rational creation of secure and sustainable crops.
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Affiliation(s)
- Yasunori Saitoh
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, Japan
| | - Michihiro Suga
- Research Institute for Interdisciplinary Science, Okayama University, Okayama, Japan
- Graduate School of Natural Science and Technology, Okayama University, Okayama, Japan
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Khanna K, Kohli SK, Kumar P, Ohri P, Bhardwaj R, Alam P, Ahmad P. Arsenic as hazardous pollutant: Perspectives on engineering remediation tools. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:155870. [PMID: 35568183 DOI: 10.1016/j.scitotenv.2022.155870] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 05/07/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Arsenic (As) is highly toxic metal (loid) that impairs plant growth and proves fatal towards human population. It disrupts physiological, biochemical and molecular attributes of plants associated with water/nutrient uptake, redox homeostasis, photosynthetic machineries, cell/membrane damage, and ATP synthesis. Numerous transcription factors are responsive towards As through regulating stress signaling, toxicity and resistance. Additionally, characterization of specific genes encoding uptake, translocation, detoxification and sequestration has also explained their underlying mechanisms. Arsenic within soil enters the food chain and cause As-poisoning. Plethora of conventional methods has been used since decades to plummet As-toxicity, but the success rate is quite low due to environmental hazards. Henceforth, exploration of effective and eco-friendly methods is aimed for As-remediation. With the technological advancements, we have enumerated novel strategies to address this concern for practicing such techniques on global scale. Novel strategies such as bioremediation, phytoremediation, mycorrhizae-mediated remediation, biochar, algal-remediation etc. possess extraordinary results. Moreover, nitric oxide (NO), a signaling molecule has also been explored in relieving As-stress through reducing oxidative damages and triggering antioxidative responses. Other strategies such as role of plant hormones (salicylic acid, indole-3-acetic acid, jasmonic acid) and micro-nutrients such as selenium have also been elucidated in As-remediation from soil. This has been observed through stimulated antioxidant activities, gene expression of transporters, defense genes, cell-wall modifications along with the synthesis of chelating agents such as phytochelatins and metallothioneins. This review encompasses the updated information about As toxicity and its remediation through novel techniques that serve to be the hallmarks for stress revival. We have summarised the genetic engineering protocols, biotechnological as well as nanotechnological applications in plants to combat As-toxicity.
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Affiliation(s)
- Kanika Khanna
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, Punjab, India; Department of Microbiology, D.A.V University, Sarmastpur, Jalandhar 144001, Punjab, India.
| | - Sukhmeen Kaur Kohli
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Pankaj Kumar
- Department of Chemical Engineering, D.A.V University, Sarmastpur, Jalandhar 144001, Punjab, India
| | - Puja Ohri
- Department of Zoology, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Pravej Alam
- Biology Department, College of Science and Humanities, Prince Sattam bin Abdulaziz University (PSAU), Alkharj, Saudi Arabia
| | - Parvaiz Ahmad
- Department of Botany, GDC Pulwama, 192301, Jammu and Kashmir, India.
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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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Jia-Yi Y, Meng-Qiang S, Zhi-Liang C, Yu-Tang X, Hang W, Jian-Qiang Z, Ling H, Qi Z. Effect of foliage applied chitosan-based silicon nanoparticles on arsenic uptake and translocation in rice (Oryza sativa L.). JOURNAL OF HAZARDOUS MATERIALS 2022; 433:128781. [PMID: 35405587 DOI: 10.1016/j.jhazmat.2022.128781] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/04/2022] [Accepted: 03/22/2022] [Indexed: 06/14/2023]
Abstract
In this study, chitosan-based silicon nanoparticles (Chsi-NPs) are prepared that primarily consists of C (57.9%), O (31.3%), N (5.6%), and Si (3.5%) and are 10-180 nm in size. We then explore the effect on the foliage applied on rice planted on soil contaminated with 104 mg·kg-1 arsenic (As); low (3 mg·L-1)and high (15 mg·L-1) doses of the foliar Chsi-NPs are administered during the rice grain filling stage. The results showed that the higher dose foliar Chsi-NPs treatment reduced the As concentration in the grain by 61.2% but increased As concentration in the leaves by 47.1% compared to the control treatment. The foliar spraying of the Chsi-NPs inhibited As transport to the grain by facilitating the attachment of As to the cell wall, with higher doses of the foliar Chsi-NPs treatment increased by 8.7%. The foliar spraying of Chsi-NPs increased the malondialdehyde levels by 18.4%, the catalase activity by 49.0%, and the glutathione activity by 99.0%. These results indicated that the foliar Chsi-NPs application was effective for alleviating As toxicity and accumulation in rice. This study provides a novel method for effectively alleviating As accumulation in rice.
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Affiliation(s)
- Yang Jia-Yi
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China; School of Environment, South China Normal University, Guangzhou 510006, PR China
| | - Sun Meng-Qiang
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
| | - Chen Zhi-Liang
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China.
| | - Xiao Yu-Tang
- School of Environment, South China Normal University, Guangzhou 510006, PR China
| | - Wei Hang
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
| | - Zhang Jian-Qiang
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
| | - Huang Ling
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
| | - Zou Qi
- Guangdong Engineering Technology Research Center of Heavy Metal Pollution Control and Restoration in Farmland Soil, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, Guangzhou 510275, PR China
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Singhal RK, Fahad S, Kumar P, Choyal P, Javed T, Jinger D, Singh P, Saha D, MD P, Bose B, Akash H, Gupta NK, Sodani R, Dev D, Suthar DL, Liu K, Harrison MT, Saud S, Shah AN, Nawaz T. Beneficial elements: New Players in improving nutrient use efficiency and abiotic stress tolerance. PLANT GROWTH REGULATION 2022. [PMID: 0 DOI: 10.1007/s10725-022-00843-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
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Handa N, Gupta P, Khanna K, Kohli SK, Bhardwaj R, Alam P, Ahmad P. Aquaporin-mediated transport: Insights into metalloid trafficking. PHYSIOLOGIA PLANTARUM 2022; 174:e13687. [PMID: 35514154 DOI: 10.1111/ppl.13687] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 01/23/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Metalloids in plants have diverse physiological effects. From being essential to beneficial to toxic, they have significant effects on many physiological processes, influencing crop yield and quality. Aquaporins are a group of membrane channels that have several physiological substrates along with water. Metalloids have emerged as one of their important substrates and they are found to have a substantial role in regulating plant metalloid homeostasis. The present review comprehensively details the multiple isoforms of aquaporins having specificity for metalloids and being responsible for their influx, distribution or efflux. In addition, it also highlights the usage of aquaporin-mediated transport as a selection marker in toxic screens and as tracer elements for closely related metalloids. Therefore, aquaporins, with their imperative contribution to the regulation of plant growth, development and physiological processes, need more research to unravel the metalloid trafficking mechanisms and their future applications.
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Affiliation(s)
- Neha Handa
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Pawan Gupta
- Department of Pharmacology, Shree S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Kherva, Gujarat, India
| | - Kanika Khanna
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Sukhmeen Kaur Kohli
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Renu Bhardwaj
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Pravej Alam
- Biology Department, College of Science and Humanities, Prince Sattam bin Abdulaziz University (PSAU), Alkharj, Saudi Arabia
| | - Parvaiz Ahmad
- Botany and Microbiology Department, Faculty of Science, King Saud University, Riyadh, Saudi Arabia
- Department of Botany, GDC Pulwama, Pulwama, Jammu and Kashmir, India
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Sun C, Liang X, Gong X, Chen H, Liu X, Zhang S, Li F, Zhao J, Yi J. Comparative transcriptomics provide new insights into the mechanisms by which foliar silicon alleviates the effects of cadmium exposure in rice. J Environ Sci (China) 2022; 115:294-307. [PMID: 34969457 DOI: 10.1016/j.jes.2021.07.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 07/29/2021] [Accepted: 07/29/2021] [Indexed: 06/14/2023]
Abstract
Silicon (Si) has been shown to alleviate Cd stress in rice. Here, we investigated the beneficial effects of foliar Si in an indica rice Huanghuazhan (HHZ). Our results showed that foliar Si increases the dry weight and decreases Cd translocation in Cd-exposed rice at the grain-filling stage only, implying that the filling stage is critical for foliar Si to reduce Cd accumulation. We also investigated the transcriptomics in flag leaves (FLs), spikelets (SPs), and node Is (NIs) of Cd-exposed HHZ after foliar Si application at the filling stage. Importantly, the gene expression profiles associated with the Si-mediated alleviation of Cd stress were tissue specific, while shared pathways were mediated by Si in Cd-exposed rice tissues. Furthermore, after the Si treatment of Cd-exposed rice, the ATP-binding cassette (ABC)-transporters were mostly upregulated in FL and SP, while the bivalent cation transporters were mostly downregulated in FL and NI, possibly helping to reduce Cd accumulation. The genes associated with essential nutrient transporters, carbohydrate and secondary metabolite biosynthesis, and cytochrome oxidase activity were mostly upregulated in Cd-exposed FL and SP, which may help to alleviate oxidative stress and improve plant growth under Cd exposure. Interestingly, genes responsible for signal transduction were negatively regulated in FL, but positively regulated in SP, by foliar Si. Our results provide transcriptomic evidence that foliar Si plays an active role in alleviating the effects of Cd exposure in rice. In particular, foliar Si may alter the expression pattern of genes associated with transport, biosynthesis and metabolism, and oxidation reduction.
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Affiliation(s)
- Chongjun Sun
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoyu Liang
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Xiaomei Gong
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Huamei Chen
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Xiulian Liu
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Shuchang Zhang
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Fangbai Li
- Guangdong Institute of Eco-environmental Science and Technology, Guangzhou 510650, China
| | - Junliang Zhao
- Rice Research Institute and Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China.
| | - Jicai Yi
- College of Life Sciences, South China Agricultural University, Guangzhou 510642, China.
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Amini S, Arsova B, Hanikenne M. The molecular basis of zinc homeostasis in cereals. PLANT, CELL & ENVIRONMENT 2022; 45:1339-1361. [PMID: 35037265 DOI: 10.1111/pce.14257] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 11/12/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Plants require zinc (Zn) as an essential cofactor for diverse molecular, cellular and physiological functions. Zn is crucial for crop yield, but is one of the most limiting micronutrients in soils. Grasses like rice, wheat, maize and barley are crucial sources of food and nutrients for humans. Zn deficiency in these species therefore not only reduces annual yield but also directly results in Zn malnutrition of more than two billion people in the world. There has been good progress in understanding Zn homeostasis and Zn deficiency mechanisms in plants. However, our current knowledge of monocots, including grasses, remains insufficient. In this review, we provide a summary of our knowledge of molecular Zn homeostasis mechanisms in monocots, with a focus on important cereal crops. We additionally highlight divergences in Zn homeostasis of monocots and the dicot model Arabidopsis thaliana, as well as important gaps in our knowledge that need to be addressed in future research on Zn homeostasis in cereal monocots.
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Affiliation(s)
- Sahand Amini
- InBioS-PhytoSystems, Translational Plant Biology, University of Liège, Liège, Belgium
| | - Borjana Arsova
- Root Dynamics Group, IBG-2 - Plant Sciences, Institut für Bio- und Geowissenschaften (IBG), Forschungszentrum, Jülich, Germany
| | - Marc Hanikenne
- InBioS-PhytoSystems, Translational Plant Biology, University of Liège, Liège, Belgium
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Bist V, Anand V, Srivastava S, Kaur J, Naseem M, Mishra S, Srivastava PK, Tripathi RD, Srivastava S. Alleviative mechanisms of silicon solubilizing Bacillus amyloliquefaciens mediated diminution of arsenic toxicity in rice. JOURNAL OF HAZARDOUS MATERIALS 2022; 428:128170. [PMID: 35032955 DOI: 10.1016/j.jhazmat.2021.128170] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 11/30/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
Silicon (Si) has gained considerable attention for its utility in improved plant health under biotic and abiotic stresses through alteration of physiological and metabolic processes. Its interaction with arsenic (As) has been the compelling area of research amidst heavy metal toxicity. However, microbe mediated Si solubilization and their role for reduced As uptake is still an unexplored domain. Foremost role of Bacillus amyloliquefaciens (NBRISN13) in impediment of arsenite (AsIII) translocation signifies our work. Reduced grain As content (52-72%) during SN13 inoculation under feldspar supplementation (Si+SN+As) highlight the novel outcome of our study. Upregulation of Lsi1, Lsi2 and Lsi3genes in Si+SN+As treated rice plants associated with restricted As translocation, frames new propositions for future research on microbemediated reduced As uptake through increased Si transport. In addition to low As accumulation, alleviation of oxidative stress markers by modulation of defense enzyme activities and differential accumulation of plant hormones was found to be associated with improved growth and yield. Thus, our findings confer the potential role of microbe mediated Si solubilization in mitigation of As stress to restore plant growth and yield.
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Affiliation(s)
- Vidisha Bist
- Division of Microbial Technology, CSIR-National Botanical Research Institute, RanaPratapMarg, Lucknow 226 001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Vandana Anand
- Division of Microbial Technology, CSIR-National Botanical Research Institute, RanaPratapMarg, 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, RanaPratapMarg, Lucknow 226 001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Jasvinder Kaur
- Division of Microbial Technology, CSIR-National Botanical Research Institute, RanaPratapMarg, Lucknow 226 001, India
| | - Mariya Naseem
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, India
| | - Seema Mishra
- Department of Chemistry, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur 273009, India
| | - Pankaj Kumar Srivastava
- 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
| | - Suchi Srivastava
- Division of Microbial Technology, CSIR-National Botanical Research Institute, RanaPratapMarg, Lucknow 226 001, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Chaiwong N, Pusadee T, Jamjod S, Prom-u-thai C. Silicon Application Promotes Productivity, Silicon Accumulation and Upregulates Silicon Transporter Gene Expression in Rice. PLANTS 2022; 11:plants11070989. [PMID: 35406969 PMCID: PMC9003229 DOI: 10.3390/plants11070989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/30/2022] [Accepted: 04/04/2022] [Indexed: 11/29/2022]
Abstract
Rice has been shown to respond positively to Si fertilizer in terms of growth and productivity. The objective of this study was to evaluate the effect of a series of Si application rates on grain yield, Si concentration, and the expression of the OsLsi6 gene among three Thai rice varieties. The varieties CNT1, PTT1, and KDML105 were grown in a pot experiment under six levels of Si (0, 100, 150, 200, 250, and 300 kg Si/ha). Grain yield was the highest at 300 kg Si/ha, being increased by 35%, 53%, and 69% in CNT1, PTT1, and KDML105, respectively, compared with the plants grown without added Si. For Si concentrations in rice plants, rising Si fertilizer application up to 150 kg/ha significantly increased the Si concentration in straw, flag leaf, and husk in all varieties. The Si concentration in all tissues was higher under high Si (300 kg Si/ha). Applying Si fertilizer also increased the expression level of OsLsi6 in both CNT1 and PTT1 varieties. The highest expression level of OsLsi6 was associated with 300 kg Si/ha, being increased by 548% in CNT1 and 326% in PTT1 compared with untreated plants. These results indicate that Si application is an effective way to improve rice yield as well as Si concentration, and that the effect is related to the higher expression of the OsLsi6 gene.
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Affiliation(s)
- Nanthana Chaiwong
- Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.C.); (T.P.); (S.J.)
| | - Tonapha Pusadee
- Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.C.); (T.P.); (S.J.)
| | - Sansanee Jamjod
- Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.C.); (T.P.); (S.J.)
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chanakan Prom-u-thai
- Division of Agronomy, Department of Plant and Soil Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; (N.C.); (T.P.); (S.J.)
- Lanna Rice Research Center, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence:
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Huang S, Yamaji N, Sakurai G, Mitani-Ueno N, Konishi N, Ma JF. A pericycle-localized silicon transporter for efficient xylem loading in rice. THE NEW PHYTOLOGIST 2022; 234:197-208. [PMID: 35020209 DOI: 10.1111/nph.17959] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
Rice is able to accumulate high concentrations of silicon (Si) in the shoots, and this ability is required for the mitigation of abiotic and biotic stresses. Although transporters for Si uptake have been identified, a transporter for the xylem loading of Si has not been found. We functionally characterized a Si transporter, OsLsi3, in terms of tissue-specific localization, knockout line phenotype and mathematic simulation. OsLsi3 was shown to be an efflux Si transporter. OsLsi3 was mainly expressed in the mature root region, and its expression was downregulated by Si. Immunostaining with a specific antibody showed that OsLsi3 was localized to the pericycle in the roots, without polarity. However, when it was expressed under the control of the OsLsi2 promoter, OsLsi3 became polarly localized to the proximal side of both the exodermis and endodermis. Knockout of this gene resulted in decreased Si uptake and concentration in the xylem sap under low Si supply, but not under high Si supply. Mathematical modeling showed that localization of OsLsi3 to the pericycle accounts for c. 30% of the total Si loading to the xylem under low Si concentrations. In summary, OsLsi3 was involved in the xylem loading of Si in rice roots, which is required for the efficient root-to-shoot translocation of Si.
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Affiliation(s)
- Sheng Huang
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Naoki Yamaji
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Gen Sakurai
- Institute for Agro-Environmental Sciences, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Namiki Mitani-Ueno
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Noriyuki Konishi
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Chuo 2-20-1, Kurashiki, 710-0046, Japan
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Foliar Silicon Spray before Summer Cutting Propagation Enhances Resistance to Powdery Mildew of Daughter Plants. Int J Mol Sci 2022; 23:ijms23073803. [PMID: 35409165 PMCID: PMC8998806 DOI: 10.3390/ijms23073803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/29/2022] [Accepted: 03/29/2022] [Indexed: 12/10/2022] Open
Abstract
Silicon (Si) has beneficial effects on not only plant growth but also against biotic and abiotic stresses. However, a few studies focus on how Si application helps strawberry (Fragaria × ananassa Duch.) resist powdery mildew. The aim of this work was to find out the optimal Si application method before cutting propagation to enhance the resistance to powdery mildew in strawberry “daughter” plants. Naturally infected “mother” plants of ‘Sulhyang’, ‘Maehyang’, and ‘Kuemsil’ strawberries were supplied with Si. Potassium silicate (K2SiO3) at a final concentration of 75 mg·L−1 Si was either added to the medium for drenching or sprayed to the leaves of the “mother” or “daughter” plant, or soluble Si fertilizer was used to dress the “mother” plant. The Si application significantly increased the shoot fresh weight of the “daughter” plants. Supplemental Si also increased the contents of phosphorus (P), potassium (K), and magnesium (Mg). In addition, the Si treatment decreased the damage of powdery mildew by increased level of proline content and suppressive reactive oxygen species. After applying Si, the length and density of hyphae on the leaf surface decreased. In addition, the infected area of “daughter” plant leaves covered with powdery mildew decreased. This study also demonstrated that Si increased the expression of resistance-gene and decreased the expression of susceptibility-gene of strawberry. Overall, Si application promoted the growth of the “daughter” plants regardless of the application method. Direct foliar Si spray to the “daughter” plants before cutting propagation is recommended to increase their resistance to powdery mildew.
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Advances in Understanding Silicon Transporters and the Benefits to Silicon-Associated Disease Resistance in Plants. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12073282] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Silicon (Si) is the second most abundant element after oxygen in the earth’s crust and soil. It is available for plant growth and development, and it is considered as quasi-essential for plant growth. The uptake and transport of Si is mediated by Si transporters. With the study of the molecular mechanism of Si uptake and transport in higher plants, different proteins and coding genes with different characteristics have been identified in numerous plants. Therefore, the accumulation, uptake and transport mechanisms of Si in various plants appear to be quite different. Many studies have reported that Si is beneficial for plant survival when challenged by disease, and it can also enhance plant resistance to pathogens, even at low Si accumulation levels. In this review, we discuss the distribution of Si in plants, as well as Si uptake, transport and accumulation, with a focus on recent advances in the study of Si transporters in different plants and the beneficial roles of Si in disease resistance. Finally, the application prospects are reviewed, leading to an exploration of the benefits of Si uptake for plant resistance against pathogens.
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Shivaraj SM, Mandlik R, Bhat JA, Raturi G, Elbaum R, Alexander L, Tripathi DK, Deshmukh R, Sonah H. Outstanding Questions on the Beneficial Role of Silicon in Crop Plants. PLANT & CELL PHYSIOLOGY 2022; 63:4-18. [PMID: 34558628 DOI: 10.1093/pcp/pcab145] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Silicon (Si) is widely accepted as a beneficial element for plants. Despite the substantial progress made in understanding Si transport mechanisms and modes of action in plants, several questions remain unanswered. In this review, we discuss such outstanding questions and issues commonly encountered by biologists studying the role of Si in plants in relation to Si bioavailability. In recent years, advances in our understanding of the role of Si-solubilizing bacteria and the efficacy of Si nanoparticles have been made. However, there are many unknown aspects associated with structural and functional features of Si transporters, Si loading into the xylem, and the role of specialized cells like silica cells and compounds preventing Si polymerization in plant tissues. In addition, despite several 1,000 reports showing the positive effects of Si in high as well as low Si-accumulating plant species, the exact roles of Si at the molecular level are yet to be understood. Some evidence suggests that Si regulates hormonal pathways and nutrient uptake, thereby explaining various observed benefits of Si uptake. However, how Si modulates hormonal pathways or improves nutrient uptake remains to be explained. Finally, we summarize the knowledge gaps that will provide a roadmap for further research on plant silicon biology, leading to an exploration of the benefits of Si uptake to enhance crop production.
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Affiliation(s)
- S M Shivaraj
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
| | - Rushil Mandlik
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
- Department of Biotechnology, Panjab University, Chandigarh, Punjab 160014, India
| | - Javaid Akhter Bhat
- National Center for Soybean Improvement, Nanjing Agricultural University, Nanjing 210095, China
| | - Gaurav Raturi
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
- Department of Biotechnology, Panjab University, Chandigarh, Punjab 160014, India
| | - Rivka Elbaum
- R H Smith Institute of Plant Sciences and Genetics in Agriculture, The Hebrew University of Jerusalem, Rehovot 7610001, Israel
| | - Lux Alexander
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Bratislava SK-84215, Slovakia
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture, Amity University, Noida, Uttar Pradesh 201313, India
| | - Rupesh Deshmukh
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
| | - Humira Sonah
- National Agri-Food Biotechnology Institute (NABI), Sector 81, SAS Nagar, Mohali, Punjab 140308, India
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Yamaji N, Ma JF. Metalloid transporters and their regulation in plants. PLANT PHYSIOLOGY 2021; 187:1929-1939. [PMID: 35235670 PMCID: PMC8644474 DOI: 10.1093/plphys/kiab326] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/21/2021] [Indexed: 05/27/2023]
Abstract
Transport of metalloids including B, Si, and As is mediated by a combination of channels and efflux transporters in plants, which are strictly regulated in response to environmental changes.
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Affiliation(s)
- Naoki Yamaji
- Institute of Plant Science and Resources, Okayama University, Kurashiki 710-0046, Japan
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Kurashiki 710-0046, Japan
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Wang D, Hou L, Zhang L, Liu P. The mechanisms of silicon on maintaining water balance under water deficit stress. PHYSIOLOGIA PLANTARUM 2021; 173:1253-1262. [PMID: 34389991 DOI: 10.1111/ppl.13520] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 07/28/2021] [Accepted: 08/03/2021] [Indexed: 06/13/2023]
Abstract
Water deficit stress severely threatens crop yield and numerous reports have shown silicon could enhance plants resistance to water deficit. One of the most important mechanisms is that silicon maintains the water balance. In this review, we summarized advanced research to elucidate the effect of silicon on plant water transport processes, including leaf water loss, vessel water transport, and root water uptake. In leaves, the deposition of silica phytolith on cuticle and stomata decreases transpirational water loss under water deficit stress. However, accumulating evidence suggest that silicon maintaining leaf water content is not through reducing water loss, but through osmotic adjustments, enhancing water transport and uptake. Enhancement of stem water transport efficiency by silicon is due to silica phytolith depositing in the cell wall of vessel tubes and pits, which support it avoiding to collapse and embolism, respectively. The improvement of root water uptake capacity by silicon acts as a key role in maintaining water balance. The underlying mechanisms include (i) enlargement of the root water uptake area, (ii) improvement of the water driving force, (iii) the prevention of water loss from root to soil, and (iv) the up-regulation of aquaporin activity. This review provides three simple models to understand the mechanism of silicon on water balance and highlights the future research area.
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Affiliation(s)
- Dan Wang
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province, China
| | - Lei Hou
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province, China
| | - Li Zhang
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province, China
| | - Peng Liu
- College of Plant Protection, Shandong Agricultural University, Taian, Shandong Province, China
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Bhalla S, Garg N. Arbuscular mycorrhizae and silicon alleviate arsenic toxicity by enhancing soil nutrient availability, starch degradation and productivity in Cajanus cajan (L.) Millsp. MYCORRHIZA 2021; 31:735-754. [PMID: 34669029 DOI: 10.1007/s00572-021-01056-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
Arsenic (As) pollution of soil reduces the growth and reproductive potential of plants. Silicon (Si) and arbuscular mycorrhizal (AM) fungi play significant roles in alleviating adverse effects of As stress. However, studies are scant regarding alleviative effects of Si in pigeonpea (Cajanus cajan L. Millsp.) because legumes are considered low Si-accumulators. We investigated the individual as well as synergistic potential of Si with two AM species (M1-Claroideoglomus etunicatum and M2-Rhizoglomus intraradices) in modulating soil properties, thereby improving growth and productivity of pigeonpea genotype Pusa 2001 grown in AsV and AsIII challenged soils. Both As species hampered the establishment of AM symbiosis, thus, reducing nutrient uptake, growth and yield, with AsIII more toxic than AsV. Exogenously applied Si and AM species enhanced soil glomalin and phosphatases activity, hence decreased metal bioavailability in soil, increased plant nutrient acquisition, biomass and chlorophylls; with maximum benefits provided by M2, closely followed by Si and least by M1. These amendments boosted the activities of starch hydrolytic enzymes (α-, β-amylase, starch phosphorylase) in plants, along with a simultaneous increase in total soluble sugars (TSS). This enhanced sugar accumulation directly led to improved reproductive attributes, more efficiently by M2 and Si than by M1. Moreover, there was a substantial increase in proline biosynthesis due to significantly enhanced activities of its biosynthetic enzymes. Additionally, combined applications of Si and AM, especially +Si+M2, complemented each other where AM enhanced Si uptake, while Si induced mycorrhization, suggesting their mutual and beneficial roles in ameliorating metal(loid) toxicity and achieving sustainability in pigeonpea production under As stress.
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Affiliation(s)
- Shyna Bhalla
- Department of Botany, Panjab University, Chandigarh-160014, India
| | - Neera Garg
- Department of Botany, Panjab University, Chandigarh-160014, India.
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Bali AS, Sidhu GPS. Arsenic acquisition, toxicity and tolerance in plants - From physiology to remediation: A review. CHEMOSPHERE 2021; 283:131050. [PMID: 34147983 DOI: 10.1016/j.chemosphere.2021.131050] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/18/2021] [Accepted: 05/26/2021] [Indexed: 05/25/2023]
Abstract
Globally, environmental contamination by potentially noxious metalloids like arsenic is becoming a critical concern to the living organisms. Arsenic is a non-essential metalloid for plants and can be acclimatised in plants to toxic levels. Arsenic acquisition by plants poses serious health risks in human due to its entry in the food chain. High arsenic regimes disturb plant water relations, promote the generation of reactive oxygen species (ROS) and induce oxidative outburst in plants. This review evidences a conceivable tie-up among arsenic levels, speciation, its availability, uptake, acquisition, transport, phytotoxicity and arsenic detoxification in plants. The role of different antioxidant enzymes to confer plant tolerance towards the enhanced arsenic distress has also been summed up. Additionally, the mechanisms involved in the modulation of different genes coupled with arsenic tolerance have been thoroughly discussed. This review is intended to present an overview to rationalise the contemporary progressions on the recent advances in phytoremediation approaches to overcome ecosystem contamination by arsenic.
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Affiliation(s)
| | - Gagan Preet Singh Sidhu
- Centre for Applied Biology in Environment Sciences, Kurukshetra University, Kurukshetra, 136119, India.
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Xu D, Lin H, Qiu W, Ge M, Chen Z, Wu C, You Y, Lu X, Wei C, Liu J, Guo X, Shi J. Hydrogen-bonded silicene nanosheets of engineered bandgap and selective degradability for photodynamic therapy. Biomaterials 2021; 278:121172. [DOI: doi.org/10.1016/j.biomaterials.2021.121172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
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Guo Q, Liu J, Bai C, Chen N, Qu L. 2D Silicene Nanosheets for High-Performance Zinc-Ion Hybrid Capacitor Application. ACS NANO 2021; 15:16533-16541. [PMID: 34636546 DOI: 10.1021/acsnano.1c06104] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Supercapacitors possessing fast-charging characteristics and long lifespan are becoming increasingly important for powering portable and smart energy storage devices, and combining capacitive and battery-type materials into an integrated device is an effective method for increasing the overall performance of capacitors. Silicene is being designed as a cathode for the development of enhanced capacitance and ultra-cycle stable zinc-ion hybrid capacitors. Possessing a maximum areal capacity of 14 mF cm-2, a maximum power density of 9 mW cm-2, capacitance retention of 112% even after 10 000 cycles, and an unexpectedly high energy density of 23 mJ cm-2, this achievement of the zinc-ion hybrid capacitor would be superior to that of previously reported silicon-based supercapacitors. The DFT calculations further reveal that Zn ions dominate the capacitive behavior of the silicene electrode. The support association between silicene and zinc-ion hybrid capacitors so that they can take advantage of each other's strengths, which takes electrochemical energy technology to a stage, offering a straightforward proposal for integration and implementation of silicon-based materials.
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Affiliation(s)
- Qiang Guo
- Key Laboratory of Cluster Science, Ministry of Education of China, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jingjing Liu
- Shanghai Institute of Technical Physics, Chinese Academy of Sciences, 500 Yu Tian Road, Shanghai 200083, China
| | - Congcong Bai
- Key Laboratory of Cluster Science, Ministry of Education of China, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Nan Chen
- Key Laboratory of Cluster Science, Ministry of Education of China, Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Liangti Qu
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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G Meselhy A, Sharma S, Guo Z, Singh G, Yuan H, Tripathi RD, Xing B, Musante C, White JC, Dhankher OP. Nanoscale Sulfur Improves Plant Growth and Reduces Arsenic Toxicity and Accumulation in Rice ( Oryza sativa L.). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:13490-13503. [PMID: 34570468 DOI: 10.1021/acs.est.1c05495] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Rice is known to accumulate arsenic (As) in its grains, posing serious health concerns for billions of people globally. We studied the effect of nanoscale sulfur (NS) on rice seedlings and mature plants under As stress. NS application caused a 40% increase in seedling biomass and a 26% increase in seed yield of mature plants compared to untreated control plants. AsIII exposure caused severe toxicity to rice; however, coexposure of plants to AsIII and NS alleviated As toxicity, and growth was significantly improved. Rice seedlings treated with AsIII + NS produced 159 and 248% more shoot and root biomass, respectively, compared to plants exposed to AsIII alone. Further, AsIII + NS-treated seedlings accumulated 32 and 11% less As in root and shoot tissues, respectively, than the AsIII-alone treatment. Mature plants treated with AsIII + NS produced 76, 110, and 108% more dry shoot biomass, seed number, and seed yield, respectively, and accumulated 69, 38, 18, and 54% less total As in the root, shoot, flag leaves, and grains, respectively, compared to AsIII-alone-treated plants. A similar trend was observed in seedlings treated with AsV and NS. The ability of sulfur (S) to alleviate As toxicity and accumulation is clearly size dependent as NS could effectively reduce bioavailability and accumulation of As in rice via modulating the gene expression activity of As transport, S assimilatory, and glutathione synthesis pathways to facilitate AsIII detoxification. These results have significant environmental implications as NS application in agriculture has the potential to decrease As in the food chain and simultaneously enable crops to grow and produce higher yields on marginal and contaminated lands.
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Affiliation(s)
- Ahmed G Meselhy
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Department of Biotechnology, Faculty of Agriculture, Al-Azhar University, Cairo 11651, Egypt
| | - Sudhir Sharma
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Zhi Guo
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences/ Key Laboratory for Crop and Animal Integrated Farming, Ministry of Agriculture, Nanjing 210014, China
| | - Gurpal Singh
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Haiyan Yuan
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Rudra D Tripathi
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226001, Uttar Pradesh, India
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Craig Musante
- The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06511, United States
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, Connecticut 06511, United States
| | - Om Parkash Dhankher
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, Massachusetts 01003, United States
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