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Wu M, Xu J, Nie Z, Shi H, Liu H, Zhang Y, Li C, Zhao P, Liu H. Physiological, biochemical and transcriptomic insights into the mechanisms by which molybdenum mitigates cadmium toxicity in Triticum aestivum L. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134516. [PMID: 38714056 DOI: 10.1016/j.jhazmat.2024.134516] [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: 02/22/2024] [Revised: 04/17/2024] [Accepted: 04/30/2024] [Indexed: 05/09/2024]
Abstract
There are many heavy metal stresses in agricultural biological systems, especially cadmium (Cd) stress, which prevent the full growth of plants, lead to a serious decline in crop yield, and endanger human health. Molybdenum (Mo), an essential nutrient element for plants, regulates plant growth mainly by reducing the absorption of heavy metals and protecting plants from oxidative damage. The aim of this study was to determine the protective effect of Mo (1 μM) application on wheat plants under conditions of Cd (10 μM) toxicity. The biomass, Cd and Mo contents, photosynthesis, leaf and root ultrastructure, antioxidant system, and active oxygen content of the wheat plants were determined. Mo increased the total chlorophyll content of wheat leaves by 43.02% and the net photosynthetic rate by 38.67%, and ameliorated the inhibitory effect of cadmium on photosynthesis by up-regulating photosynthesis-related genes and light-trapping genes. In addition, Mo reduced the content of superoxide anion (O2•-) by 16.55% and 31.12%, malondialdehyde (MDA) by 20.75% and 7.17%, hydrogen peroxide (H2O2) by 24.69% and 8.17%, and electrolyte leakage (EL) by 27.59% and 16.82% in wheat leaves and roots, respectively, and enhanced the antioxidant system to reduce the burst of reactive oxygen species and alleviate the damage of Cd stress on wheat. According to the above results, Mo is considered a plant essential nutrient that enhances Cd tolerance in wheat by limiting the absorption, accumulation and transport of Cd and by regulating antioxidant defence mechanisms. ENVIRONMENTAL IMPLICATION: Cadmium (Cd),is one of the most toxic heavy metals in the environment, and Cd pollution is a global environmental problem that threatens food security and human health. Molybdenum (Mo), as an essential plant nutrient, is often used to resist environmental stress. However, the mechanism of Mo treatment on wheat subjected to Cd stress has not been reported. In this study, we systematically analysed the effects of Mo on the phenotype, physiology, biochemistry, ultrastructure and Cd content of wheat subjected to Cd stress, and comprehensively analysed the transcriptomics. It not only reveals the mechanism of Mo tolerance to Cd stress in wheat, but also provides new insights into phytoremediation and plant growth in Cd-contaminated soil.
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Affiliation(s)
- Mengmeng Wu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China
| | - Jiayang Xu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Zhaojun Nie
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Huazhong Shi
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA
| | - Haiyang Liu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Yupeng Zhang
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Chang Li
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China
| | - Peng Zhao
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Key Laboratory of Cultivated Land Quality Conservation in the Huanghuaihai Plain of the Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China
| | - Hongen Liu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou 450046, China; Engineering Technology Research Center of Soil Pollution Control in Henan Province, Zhengzhou 450046, China; Key Laboratory of Cultivated Land Quality Conservation in the Huanghuaihai Plain of the Ministry of Agriculture and Rural Affairs, Zhengzhou 450046, China.
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Xu M, Meng Q, Zhu S, Yu R, Chen L, Shi G, Wong KH, Fan D, Ding Z. The Performance and Evolutionary Mechanism of Ganoderma lucidum in Enhancing Selenite Tolerance and Bioaccumulation. J Fungi (Basel) 2024; 10:415. [PMID: 38921401 PMCID: PMC11205109 DOI: 10.3390/jof10060415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 05/25/2024] [Accepted: 06/03/2024] [Indexed: 06/27/2024] Open
Abstract
BACKGROUND Selenium (Se) pollution poses serious threats to terrestrial ecosystems. Mushrooms are important sources of Se with the potential for bioremediation. Pre-eminent Se resources must possess the ability to tolerate high levels of Se. To obtain Se-accumulating fungi, we isolated selenite-tolerance-enhanced Ganoderma lucidum JNUSE-200 through adaptive evolution. METHODS The molecular mechanism responsible for selenite tolerance and accumulation was explored in G. lucidum JNUSE-200 by comparing it with the original strain, G. lucidum CGMCC 5.26, using a combination of physiological and transcriptomic approaches. RESULTS G. lucidum JNUSE-200 demonstrated tolerance to 200 mg/kg selenite in liquid culture and exhibited normal growth, whereas G. lucidum CGMCC 5.26 experienced reduced growth, red coloration, and an unpleasant odor as a result of exposure to selenite at the same concentration. In this study, G. lucidum JNUSE-200 developed a triple defense mechanism against high-level selenite toxicity, and the key genes responsible for improved selenite tolerance were identified. CONCLUSIONS The present study offers novel insights into the molecular responses of fungi towards selenite, providing theoretical guidance for the breeding and cultivation of Se-accumulating varieties. Moreover, it significantly enhances the capacity of the bio-manufacturing industry and contributes to the development of beneficial applications in environmental biotechnology through fungal selenite transformation bioprocesses.
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Affiliation(s)
- Mengmeng Xu
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (M.X.); (D.F.)
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; (Q.M.); (L.C.); (G.S.)
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi 214122, China
| | - Qi Meng
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; (Q.M.); (L.C.); (G.S.)
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi 214122, China
| | - Song Zhu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (S.Z.); (R.Y.)
| | - Ruipeng Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (S.Z.); (R.Y.)
| | - Lei Chen
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; (Q.M.); (L.C.); (G.S.)
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi 214122, China
| | - Guiyang Shi
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; (Q.M.); (L.C.); (G.S.)
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi 214122, China
| | - Ka-Hing Wong
- Research Institute for Future Food, Department of Food Science and Nutrition, The Hong Kong Polytechnic University, Hong Kong 999077, China;
| | - Daming Fan
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China; (M.X.); (D.F.)
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; (S.Z.); (R.Y.)
| | - Zhongyang Ding
- National Engineering Research Center for Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, China; (Q.M.); (L.C.); (G.S.)
- Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi 214122, China
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Liu Y, Ma J, Li F, Zeng X, Wu Z, Huang Y, Xue Y, Wang Y. High Concentrations of Se Inhibited the Growth of Rice Seedlings. PLANTS (BASEL, SWITZERLAND) 2024; 13:1580. [PMID: 38891388 PMCID: PMC11174541 DOI: 10.3390/plants13111580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/21/2024]
Abstract
Selenium (Se) is crucial for both plants and humans, with plants acting as the main source for human Se intake. In plants, moderate Se enhances growth and increases stress resistance, whereas excessive Se leads to toxicity. The physiological mechanisms by which Se influences rice seedlings' growth are poorly understood and require additional research. In order to study the effects of selenium stress on rice seedlings, plant phenotype analysis, root scanning, metal ion content determination, physiological response index determination, hormone level determination, quantitative PCR (qPCR), and other methods were used. Our findings indicated that sodium selenite had dual effects on rice seedling growth under hydroponic conditions. At low concentrations, Se treatment promotes rice seedling growth by enhancing biomass, root length, and antioxidant capacity. Conversely, high concentrations of sodium selenite impair and damage rice, as evidenced by leaf yellowing, reduced chlorophyll content, decreased biomass, and stunted growth. Elevated Se levels also significantly affect antioxidase activities and the levels of proline, malondialdehyde, metal ions, and various phytohormones and selenium metabolism, ion transport, and antioxidant genes in rice. The adverse effects of high Se concentrations may directly disrupt protein synthesis or indirectly induce oxidative stress by altering the absorption and synthesis of other compounds. This study aims to elucidate the physiological responses of rice to Se toxicity stress and lay the groundwork for the development of Se-enriched rice varieties.
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Affiliation(s)
| | | | | | | | | | | | | | - Yanyan Wang
- Department of Agronomy, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang 524088, China; (Y.L.)
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Guo A, Jia W, Wang X. Selenium-Mediated (-)-Epigallocatechin-3-Gallate Dynamics via Flavanone-3-Hydroxylase Regulation of Flavonoid Biosynthesis in Fu Tea ( Camellia sinensis (L.) O. Kuntze). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38840526 DOI: 10.1021/acs.jafc.4c02987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
Tea (Camellia sinensis (L.) O. Kuntze) is a highly selenium enrichment capacity plant; high selenium concentration contributes to the occurrence of oxidative stress and protein misfolding in tea plants, whereas flavonoids can chelate heavy metals to protect plants from oxidative stress caused by metal exposure. Nevertheless, the role of catechins in flavonoid synthesis and nutrient metabolism under selenium stress remains unidentified. Combining Word2vec and HNSW utilizing UHPLC-Q-Orbitrap HRMS-MS/MS to implement rapid matching annotation of the structural information on metabolites in Fu tea, we found that selenium-mediated changes in catechins in Fu tea were mainly associated with flavonoid biosynthesis pathways. The results demonstrated that selenium treatment increased benign selenol analogues (glutathioselenol) in tea and identified the novel selenopeptide PRSeMW (m/z 636.22571, Pro-Arg-SeMet-Trp) in selenium-enriched Fu tea samples to enhance the health benefits of tea. The selenium levels were negatively correlated with N5-ethyl-l-glutamine (11.63 to 4.26 mg kg-1) and (-)-epigallocatechin (13.26 to 11.19 mg kg-1), increasing the accumulation of tea polyphenols ((-)-catechin gallate, (-)-epigallocatechin 3-gallate, and (+)-gallocatechin), and decreasing the level of caffeine. These discoveries provide new insights into the mechanism of tea polyphenol-mediated transformation of selenium in Fu tea and theoretical support for the quality assessment of selenium-enriched tea.
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Affiliation(s)
- Aiai Guo
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Wei Jia
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
- Shaanxi Research Institute of Agricultural Products Processing Technology, Xi'an 710021, China
| | - Xin Wang
- School of Food Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
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Wang X, Zhai X, Lian J, Cheng L, Wang M, Huang X, Chen Y, Pan J, He Z, Yang X. Varietal responses to a soil amendment: Balancing cadmium mitigation and mineral biofortification in wheat production. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:171772. [PMID: 38499106 DOI: 10.1016/j.scitotenv.2024.171772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/11/2024] [Accepted: 03/15/2024] [Indexed: 03/20/2024]
Abstract
The application of soil amendment (SA) and the cultivation of low Cd-accumulating varieties have been a widely favored strategy to enable the safe utilization of Cd-contaminated arable land. However, little has been reported on the reciprocal effects of SA on the Cd mitigation and nutritional quality of different wheat varieties. In this study, we evaluated the impact of an SA on agronomic traits, Cd accumulation, translocation and mineral nutrition of 12 wheat varieties in an acidic field with a Cd concentration of 0.46 mg/kg. The results showed that the SA significantly reduced soil DTPA Cd (42.3 %) and resulted in a slight decrease in wheat grain yield (4.24-9.72 %, average 7.62 %). Similarly, the SA significantly reduced grain Cd concentrations (average 61.65 %) while increased the concentrations of beneficial elements such as Mo and Se in all wheat varieties. However, this intervention also led to a reduction in the concentration of essential mineral elements (such as Ca, Fe, and Mn) in whole wheat grain and starchy endosperm, as well as a reduction in their proportion in the bran. Based on genotypic differences, Huaimai 33, Zhenmai 168, Sumai 188 and Yangmai 28 were considered to be the relatively most promising wheat varieties for achieving a balance among food safety, nutritional quality, and economic yield in this region. Taken together, this study highlights the varietal differences in Cd mitigation and mineral accumulation in different wheat varieties in response to the SA, offering new perspectives for phytoremediation and biofortification strategies for Cd-contaminated farmland.
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Affiliation(s)
- Xin Wang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xu Zhai
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jiapan Lian
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Liping Cheng
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China
| | - Miao Wang
- Hangzhou City University, Hangzhou 310058, China
| | - Xiwei Huang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yonglong Chen
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jianqing Pan
- Agricultural and Rural Bureau of Changxing County, Zhejiang Province, Huzhou 323000, China
| | - Zhenli He
- Department of Soil, Water and Ecosystem Sciences, Indian River Research and Education Center, University of Florida-IFAS, Fort Pierce, FL 34945, USA
| | - Xiaoe Yang
- Ministry of Education (MOE) Key Laboratory of Environmental Remediation and Ecosystem Health, College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, China.
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Pi K, Van Cappellen P, Li H, Gan Y, Tong L, Zhong X, Wang Y. Soil respiration induces co-emission of greenhouse gases and methylated selenium from cold-region Mollisols: Significance for selenium deficiency. ENVIRONMENT INTERNATIONAL 2024; 188:108758. [PMID: 38781702 DOI: 10.1016/j.envint.2024.108758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
Mollisols rich in natural organic matter are a significant sink of carbon (C) and selenium (Se). Climate warming and agricultural expansion to the cold Mollisol regions may enhance soil respiration and biogeochemical cycles, posing a growing risk of soil C and Se loss. Through field-mimicking incubation experiments with uncultivated and cultivated soils from the Mollisol regions of northeastern China, this research shows that soil respiration remained significant even during cold seasons and caused co-emission of greenhouse gases (CO2 and CH4) and methylated Se. Such stimulus effects were generally stronger in the cultivated soils, with maximum emission rates of 7.45 g/m2/d C and 1.42 μg/m2/d Se. For all soil types, the greatest co-emission of CO2 and dimethyl selenide occurred at 25 % soil moisture, whereas measurable CH4 emission was observed at 40 % soil moisture with higher percentages of dimethyl diselenide volatilization. Molecular characterization with three-dimensional fluorescence and ultra-high resolution mass spectrometry suggests that CO2 emission is sensitive to the availability of microbial protein-like substances and free energy from organic carbon biodegradation under variable moisture conditions. Predominant Se binding to biodegradable organic matter resulted in high dependence of Se volatilization on rates of greenhouse gas emissions. These findings together highlight the importance of dynamic organic carbon quality for soil respiration and consequent Mollisol Se loss risk, with implications for science-based management of C and Se resources in agricultural lands to combat with Se deficiency.
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Affiliation(s)
- Kunfu Pi
- MOE Key Laboratory of Groundwater Quality and Health, China University of Geosciences, 430074 Wuhan, China; School of Environmental Studies, China University of Geosciences, 430074 Wuhan, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, 430074 Wuhan, China; Ecohydrology Research Group, Department of Earth and Environmental Sciences, University of Waterloo, N2L 3G1 Waterloo, Canada; Heilongjiang Key Laboratory of Black Soil and Water Resources Research, 150036 Harbin, China
| | - Philippe Van Cappellen
- Ecohydrology Research Group, Department of Earth and Environmental Sciences, University of Waterloo, N2L 3G1 Waterloo, Canada
| | - Hongyan Li
- Institute of Mineral Resources, Chinese Academy of Geological Sciences, 100037 Beijing, China
| | - Yiqun Gan
- MOE Key Laboratory of Groundwater Quality and Health, China University of Geosciences, 430074 Wuhan, China; School of Environmental Studies, China University of Geosciences, 430074 Wuhan, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, 430074 Wuhan, China
| | - Lei Tong
- MOE Key Laboratory of Groundwater Quality and Health, China University of Geosciences, 430074 Wuhan, China; School of Environmental Studies, China University of Geosciences, 430074 Wuhan, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, 430074 Wuhan, China; Heilongjiang Key Laboratory of Black Soil and Water Resources Research, 150036 Harbin, China
| | - Xinlin Zhong
- School of Environmental Studies, China University of Geosciences, 430074 Wuhan, China
| | - Yanxin Wang
- MOE Key Laboratory of Groundwater Quality and Health, China University of Geosciences, 430074 Wuhan, China; School of Environmental Studies, China University of Geosciences, 430074 Wuhan, China; State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, 430074 Wuhan, China.
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Ikram S, Li Y, Lin C, Yi D, Heng W, Li Q, Tao L, Hongjun Y, Weijie J. Selenium in plants: A nexus of growth, antioxidants, and phytohormones. JOURNAL OF PLANT PHYSIOLOGY 2024; 296:154237. [PMID: 38583194 DOI: 10.1016/j.jplph.2024.154237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/12/2024] [Accepted: 03/20/2024] [Indexed: 04/09/2024]
Abstract
Selenium (Se) is an essential micronutrient for both human and animals. Plants serve as the primary source of Se in the food chain. Se concentration and availability in plants is influenced by soil properties and environmental conditions. Optimal Se levels promote plant growth and enhance stress tolerance, while excessive Se concentration can result in toxicity. Se enhances plants ROS scavenging ability by promoting antioxidant compound synthesis. The ability of Se to maintain redox balance depends upon ROS compounds, stress conditions and Se application rate. Furthermore, Se-dependent antioxidant compound synthesis is critically reliant on plant macro and micro nutritional status. As these nutrients are fundamental for different co-factors and amino acid synthesis. Additionally, phytohormones also interact with Se to promote plant growth. Hence, utilization of phytohormones and modified crop nutrition can improve Se-dependent crop growth and plant stress tolerance. This review aims to explore the assimilation of Se into plant proteins, its intricate effect on plant redox status, and the specific interactions between Se and phytohormones. Furthermore, we highlight the proposed physiological and genetic mechanisms underlying Se-mediated phytohormone-dependent plant growth modulation and identified research opportunities that could contribute to sustainable agricultural production in the future.
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Affiliation(s)
- Sufian Ikram
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yang Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China.
| | - Chai Lin
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Debao Yi
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wang Heng
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Qiang Li
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lu Tao
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yu Hongjun
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jiang Weijie
- State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China.
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Chilala P, Skalickova S, Horky P. Selenium Status of Southern Africa. Nutrients 2024; 16:975. [PMID: 38613007 PMCID: PMC11013911 DOI: 10.3390/nu16070975] [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: 03/11/2024] [Revised: 03/24/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Selenium is an essential trace element that exists in inorganic forms (selenite and selenates) and organic forms (selenoamino acids, seleno peptides, and selenoproteins). Selenium is known to aid in the function of the immune system for populations where human immunodeficiency virus (HIV) is endemic, as studies suggest that a lack of selenium is associated with a higher risk of mortality among those with HIV. In a recent study conducted in Zambia, adults had a median plasma selenium concentration of 0.27 μmol/L (IQR 0.14-0.43). Concentrations consistent with deficiency (<0.63 μmol/L) were found in 83% of adults. With these results, it can be clearly seen that selenium levels in Southern Africa should be investigated to ensure the good health of both livestock and humans. The recommended selenium dietary requirement of most domesticated livestock is 0.3 mg Se/kg, and in humans above 19 years, anRDA (recommended daily allowance) of 55 mcg Se/per dayisis recommended, but most of the research findings of Southern African countries have recorded low levels. With research findings showing alarming low levels of selenium in soils, humans, and raw feed materials in Southern Africa, further research will be vital in answering questions on how best to improve the selenium status of Southern African soils and plants for livestock and humans to attain sufficient quantities.
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Affiliation(s)
| | | | - Pavel Horky
- Department of Animal Nutrition and Forage Production, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 3, 613 00 Brno, Czech Republic; (P.C.); (S.S.)
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Lyu C, Li Z, Chen P, Jing X, Zhang R, Liu Y. Straw with different fermentation degrees mediate Se/Cd bioavailability by governing the putative iron reducing bacteria. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 345:123496. [PMID: 38316253 DOI: 10.1016/j.envpol.2024.123496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 02/07/2024]
Abstract
Straw returning is a crucial agronomic practice in fields due to its various benefits. However, effects and mechanisms of straw with different fermentation degrees on Se and Cd bioavailability have not been sufficiently investigated. In this study, straw with different fermentation degrees were applied to a Cd-contaminated seleniferous soil to investigate their effects on Se and Cd bioavailability. Results revealed that the effects of straw application on Se/Cd bioavailability in soil depended on the fermentation degrees of straw. Both original and slightly fermented straw had pronounced impacts on microbial iron reduction compared to fully fermented straw, and thus led to a significant increase in Se and Cd bioavailability. The linear discriminant analysis effect size (LEfSe) showed that norank_f_Symbiobacteraceae, Micromonospora, WCHB1-32, Ruminiclostrdium, and Cellulomonas were the major biomarkers at genus level in straw application soils, additional network analysis and random forest analysis suggested that Ruminiclostrdium and Cellulomonas might be implicated in microbial iron reduction. Furthermore, the microbial iron reduction had negative effects on mineral-associated Se with coefficient of -0.81 and positive effects on mineral-associated Cd with coefficient of 0.72, while Mn fractions exhibited positive effects on mineral-associated Se with a coefficient of 0.53 and negative effects on mineral-associated Cd. In conclusion, straw with different fermentation degrees governed Se and Cd mobility by regulating abundance of Ruminiclostrdium and Cellulomonas, subsequently affecting Fe and Mn fractions and consequently influencing Se and Cd bioavailability.
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Affiliation(s)
- Chenhao Lyu
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan, 430074, China
| | - Zhiguo Li
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan, 430074, China
| | - Peng Chen
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan, 430074, China
| | - Xinxin Jing
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan, 430074, China
| | - Runqin Zhang
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan, 430074, China
| | - Yi Liu
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, China; Danjiangkou Wetland Ecosystem Field Scientific Observation and Research Station, Chinese Academy of Sciences & Hubei Province, Wuhan, 430074, China.
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10
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Li K, Li J, Zhang S, Zhang J, Xu Q, Xu Z, Guo Y. Amorphous structure and crystal stability determine the bioavailability of selenium nanoparticles. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133287. [PMID: 38141318 DOI: 10.1016/j.jhazmat.2023.133287] [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: 09/11/2023] [Revised: 11/26/2023] [Accepted: 12/14/2023] [Indexed: 12/25/2023]
Abstract
Microorganisms play a critical role in the biogeochemical cycling of selenium, often reducing selenite/selenate to elemental selenium nanoparticles (SeNPs). These SeNPs typically exist in an amorphous structure but can transform into a trigonal allotrope. However, the crystal structural transition process and its impact on selenium bioavailability have not been well studied. To shed light on this, we prepared chemosynthetic and biogenic SeNPs and investigated the stability of their crystal structure. We found that biogenic SeNPs exhibited a highly stable amorphous structure in various conditions, such as lyophilization, washing, and laser irradiation, whereas chemosynthetic SeNPs transformed into a trigonal structure in the same conditions. Additionally, a core-shell structure was observed in biogenic SeNPs after electron beam irradiation. Further analysis revealed that biogenic SeNPs showed a coordination reaction between Se atoms and surface binding biomacromolecules, indicating that the outer layer of Se-biomacromolecules complex prevented the SeNPs from crystallizing. We also investigated the effects of SeNPs crystal structures on the bioavailability in bacteria, yeast, and plants, finding that the amorphous structure of SeNPs determined Se bioavailability.
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Affiliation(s)
- Kui Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, China
| | - Jing Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, China
| | - Sasa Zhang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, China
| | - Jingrui Zhang
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, China
| | - Qiaolin Xu
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, China
| | - Zhongnan Xu
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, China
| | - Yanbin Guo
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; Beijing Key Laboratory of Biodiversity and Organic Farming, China Agricultural University, Beijing 100193, China.
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11
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Lan Y, Luo X, Fan X, Wang G, Zheng S, Shi K. Arsenite Mediates Selenite Resistance and Reduction in Enterobacter sp. Z1, Thereby Enhancing Bacterial Survival in Selenium Environments. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:4204-4213. [PMID: 38373240 DOI: 10.1021/acs.est.3c08346] [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: 02/21/2024]
Abstract
Arsenic (As) is widely present in the environment, and virtually all bacteria possess a conserved ars operon to resist As toxicity. High selenium (Se) concentrations tend to be cytotoxic. Se has an uneven regional distribution and is added to mitigate As contamination in Se-deficient areas. However, the bacterial response to exogenous Se remains poorly understood. Herein, we found that As(III) presence was crucial for Enterobacter sp. Z1 to develop resistance against Se(IV). Se(IV) reduction served as a detoxification mechanism in bacteria, and our results demonstrated an increase in the production of Se nanoparticles (SeNPs) in the presence of As(III). Tandem mass tag proteomics analysis revealed that the induction of As(III) activated the inositol phosphate, butanoyl-CoA/dodecanoyl-CoA, TCA cycle, and tyrosine metabolism pathways, thereby enhancing bacterial metabolism to resist Se(IV). Additionally, arsHRBC, sdr-mdr, purHD, and grxA were activated to participate in the reduction of Se(IV) into SeNPs. Our findings provide innovative perspectives for exploring As-induced Se biotransformation in prokaryotes.
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Affiliation(s)
- Yan Lan
- National Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiong Luo
- National Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Xia Fan
- College of Biology and Agricultural Resources, Huanggang Normal University, Huanggang 438000, Hubei, China
| | - Gejiao Wang
- National Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shixue Zheng
- National Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Kaixiang Shi
- National Key Laboratory of Agricultural Microbiology, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
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12
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Gao H, Ji Y, Chen W. Selenite resistance and biotransformation to SeNPs in Sinorhizobium meliloti 1021 and the synthetic promotion on alfalfa growth. Microbiol Res 2024; 280:127568. [PMID: 38118306 DOI: 10.1016/j.micres.2023.127568] [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: 10/27/2023] [Revised: 12/02/2023] [Accepted: 12/04/2023] [Indexed: 12/22/2023]
Abstract
Toxic selenite, commonly found in soil and water, can be transformed by microorganisms into selenium nanoparticles (SeNPs) as part of a detoxification process. In this study, a comprehensive investigation was conducted on the resistance and biotransformation of selenite in Sinorhizobium meliloti 1021 and the synergistic impact of SeNPs and the strain on alfalfa growth promotion was explored. Strain 1021 reduced 46% of 5 mM selenite into SeNPs within 72 h. The SeNPs, composed of proteins, lipids and polysaccharides, were primarily located outside rhizobial cells and had a tendency to aggregate. Under selenite stress, many genes participated in multidrug efflux, sulfur metabolism and redox processes were significantly upregulated. Of them, four genes, namely gmc, yedE, dsh3 and mfs, were firstly identified in strain 1021 that played crucial roles in selenite biotransformation and resistance. Biotoxic evaluations showed that selenite had toxic effects on roots and seedlings of alfalfa, while SeNPs exhibited antioxidant properties, promoted growth, and enhanced plant's tolerance to salt stress. Overall, our research provides novel insights into selenite biotransformation and resistance mechanisms in rhizobium and highlights the potential of SeNPs-rhizobium complex as biofertilizer to promote legume growth and salt tolerance.
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Affiliation(s)
- Huali Gao
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing 100193, China
| | - Yingrui Ji
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing 100193, China
| | - Wenfeng Chen
- College of Biological Sciences and Rhizobium Research Center, China Agricultural University, Beijing 100193, China.
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13
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Zhang X, Yang X, Ruan J, Chen H. Epigallocatechin gallate (EGCG) nanoselenium application improves tea quality (Camellia sinensis L.) and soil quality index without losing microbial diversity: A pot experiment under field condition. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 914:169923. [PMID: 38199344 DOI: 10.1016/j.scitotenv.2024.169923] [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: 09/20/2023] [Revised: 01/01/2024] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Applying selenium (Se) fertilizer is the only way to alleviate soil Se deficiency. Although effects of nanoselenium foliar application on plant growth and stress resistance have been extensively investigated, soil application of nanoselenium on soil microorganisms and their relationship with crop quality and soil health remains unclear. In this study, a steady-state homogeneous nanoparticle of epigallocatechin gallate Se (ESe) was synthesized, and a pot experiment was conducted applying ESe at five concentrations (0, 1, 10, 50, and 100 mg kg-1) to the tea planattion soil. The study revealed a significant increase in Se concentration in soil and tea with ESe application and identified 2.43-7.8 mg kg-1 as the safe and optimal range for soil application. Specifically, the moderate dose of ESe improved the tea quality [reduced tea polyphenols (TP), increased free amino acids (AA), and reduced TP/AA] and soil quality index (SQI). Besides, in marure tea leaves, antioxidant enzyme activities [promote catalase (CAT) superoxide dismutase (SOD), and peroxidase (POD)] increased, while level of oxidative stress [malondialdehyde (MDA), hydrogen peroxide (H2O2) and superoxide anion (O2-)] decreased with ESe application. The 16S rRNA of the soil bacteria showed that ESe application significantly changed the community structure of soil bacteria but did not alter the diversity of the bacteria and the abundance of dominant taxa (phylum and genus levels). Statistical analysis of the taxonomic and functional profiles (STAMP) detected 21 differential taxa (genus level), mainly low-abundance ones, under the ESe application. Linear regression and random forest (RF) modeling revealed that the low-abundance bacterial taxa were significantly correlated with SQI (R2 = 0.28, p < 0.01) and tea quality (R2 = 0.23-0.37, p < 0.01). Thus, the study's findings suggest that ESe application affects soil and tea quality by modulating the low-abundance taxa in soil. The study also highlights the crucial role of low-abundance bacterial taxa of the rhizosphere in regulating soil functions under the ESe application.
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Affiliation(s)
- Xiangchun Zhang
- Tea Research Institute, Chinese Academy of Agriculture Sciences, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Xiangde Yang
- Tea Research Institute, Chinese Academy of Agriculture Sciences, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China.
| | - Jianyun Ruan
- Tea Research Institute, Chinese Academy of Agriculture Sciences, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
| | - Hongping Chen
- Tea Research Institute, Chinese Academy of Agriculture Sciences, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Hangzhou 310008, China
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14
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Fang J, Peng Y, Zheng L, He C, Peng S, Huang Y, Wang L, Liu H, Feng G. Chitosan-Se Engineered Nanomaterial Mitigates Salt Stress in Plants by Scavenging Reactive Oxygen Species. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:176-188. [PMID: 38127834 DOI: 10.1021/acs.jafc.3c06185] [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: 12/23/2023]
Abstract
Soil salinity seriously hinders the sustainable development of green agriculture. The emergence of engineered nanomaterials has revolutionized agricultural research, providing a new means to overcome the limitations associated with current abiotic stress management and achieve highly productive agriculture. Herein, we synthesized a brand-new engineered nanomaterial (Cs-Se NMs) through the Schiff base reaction of oxidized chitosan with selenocystamine hydrochloride to alleviate salt stress in plants. After the addition of 300 mg/L Cs-Se NMs, the activity of superoxide dismutase, catalase, and peroxidase in rice shoots increased to 3.19, 1.79, and 1.85 times those observed in the NaCl group, respectively. Meanwhile, the MDA levels decreased by 63.9%. Notably, Cs-Se NMs also raised the transcription of genes correlated with the oxidative stress response and MAPK signaling in the transcriptomic analysis. In addition, Cs-Se NMs augmented the abundance and variety of rhizobacteria and remodeled the microbial community structure. These results provide insights into applying engineered nanomaterials in sustainable agriculture.
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Affiliation(s)
- Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Yuxin Peng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Lijuan Zheng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Chang He
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Shan Peng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Yuewen Huang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Lixiang Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Huipeng Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Guangfu Feng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
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15
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Qu L, Xu Z, Huang W, Han D, Dang B, Ma X, Liu Y, Xu J, Jia W. Selenium-molybdenum interactions reduce chromium toxicity in Nicotiana tabacum L. by promoting chromium chelation on the cell wall. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132641. [PMID: 37797574 DOI: 10.1016/j.jhazmat.2023.132641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/11/2023] [Accepted: 09/25/2023] [Indexed: 10/07/2023]
Abstract
Chromium (Cr) is a hazardous heavy metal that negatively affects animals and plants. The micronutrients selenium (Se) and molybdenum (Mo) have been widely shown to alleviate heavy metal toxicity in plants. However, the molecular mechanism of Cr chelation on the cell wall by combined treatment with Se and Mo has not been reported. Therefore, this study aimed to explore the effects of Se-Mo interactions on the subcellular distribution of Cr (50 µM) and on cell wall composition, structure, functional groups and Cr content, in addition to performing a comprehensive analysis of the transcriptome. Our results showed that the cell walls of shoots and roots accumulated 51.0% and 65.0% of the Cr, respectively. Furthermore, pectin in the cell wall bound 69.5%/90.2% of the Cr in the shoots/roots. Se-Mo interactions upregulated the expression levels of related genes encoding galacturonosyltransferase (GAUT), UTP-glucose-1-phosphate uridylyltransferase (UGP), and UDP-glucose-4-epimerase (GALE), involved in polysaccharide biosynthesis, thereby increasing pectin and cellulose levels. Moreover, combined treatment with Se and Mo increased the lignin content and cell wall thickness by upregulating the expression levels of genes encoding cinnamyl alcohol dehydrogenase (CAD), peroxidase (POX) and phenylalanine amino-lyase (PAL), involved in lignin biosynthesis. Fourier-transform infrared (FTIR) spectroscopy results showed that Se + Mo treatment (in combination) increased the number of carboxylic acid groups (-COOH) groups, thereby enhancing the Cr chelation ability. The results not only elucidate the molecular mechanism of action of Se-Mo interactions in mitigating Cr toxicity but also provide new insights for phytoremediation and food safety.
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Affiliation(s)
- Lili Qu
- College of Tobacco Science, Henan Agricultural University, National Tobacco Cultivation and Physiology and Biochemistry Research center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, Zhengzhou, Henan, China
| | - Zicheng Xu
- College of Tobacco Science, Henan Agricultural University, National Tobacco Cultivation and Physiology and Biochemistry Research center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, Zhengzhou, Henan, China
| | - Wuxing Huang
- College of Tobacco Science, Henan Agricultural University, National Tobacco Cultivation and Physiology and Biochemistry Research center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, Zhengzhou, Henan, China
| | - Dan Han
- College of Tobacco Science, Henan Agricultural University, National Tobacco Cultivation and Physiology and Biochemistry Research center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, Zhengzhou, Henan, China
| | - Bingjun Dang
- College of Tobacco Science, Henan Agricultural University, National Tobacco Cultivation and Physiology and Biochemistry Research center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, Zhengzhou, Henan, China
| | - Xiaohan Ma
- College of Tobacco Science, Henan Agricultural University, National Tobacco Cultivation and Physiology and Biochemistry Research center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, Zhengzhou, Henan, China
| | - Yizan Liu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou, Henan, China
| | - Jiayang Xu
- College of Resources and Environment, Henan Agricultural University, Zhengzhou, Henan, China.
| | - Wei Jia
- College of Tobacco Science, Henan Agricultural University, National Tobacco Cultivation and Physiology and Biochemistry Research center, Key Laboratory for Tobacco Cultivation of Tobacco Industry, Zhengzhou, Henan, China.
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16
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Viltres-Portales M, Sánchez-Martín MJ, Llugany M, Boada R, Valiente M. Selenium biofortification of microgreens: Influence on phytochemicals, pigments and nutrients. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 206:108283. [PMID: 38142664 DOI: 10.1016/j.plaphy.2023.108283] [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: 10/02/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/26/2023]
Abstract
Kale (Brassica oleracea L. var. sabellica L.), kohlrabi (Brassica oleracea L. var. gongylodes L.) and wheat (Triticum aestivum L. cv. Bancal) microgreens were cultivated in presence of selenium 20 μmol L-1 as sodium selenite and sodium selenate mixture. The influence of this biofortification process was evaluated in terms of biomass production, total Se, macro- and micronutrients concentration, polyphenols, antioxidant activity, chlorophylls and carotenoids levels and total soluble proteins content. The results obtained have shown a significant concentration of total Se in the biofortified microgreens of kale (133 μg Se·g-1 DW) and kohlrabi (127 μg Se·g-1 DW) higher than that obtained for wheat (28 μg Se·g-1 DW). The Se uptake in all the species did not produce oxidative damage to the plants reflected in the bioactive compounds, antioxidant capacity or pigments concentration. These Se-enriched microgreens may contribute to the recommended intake of this nutrient in human diet as to overcome Se-deficiency.
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Affiliation(s)
- Marcia Viltres-Portales
- GTS Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain; Institute of Materials Science and Technology, Universidad de La Habana, Zapata y G, Vedado, Plaza, 10400, La Habana, Cuba
| | - María-Jesús Sánchez-Martín
- GTS Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
| | - Mercè Llugany
- Plant Physiology Group (BABVE), Faculty of Biosciences, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Roberto Boada
- GTS Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Manuel Valiente
- GTS Research Group, Department of Chemistry, Faculty of Science, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
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17
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Kong W, Huo R, Lu Y, Fan Z, Yue R, Ren A, Li L, Ding P, Ren Y, Gao Z, Sun M. Nitrogen Application Can Optimize Form of Selenium in Soil in Selenium-Rich Areas to Affect Selenium Absorption and Accumulation in Black Wheat. PLANTS (BASEL, SWITZERLAND) 2023; 12:4160. [PMID: 38140488 PMCID: PMC10747177 DOI: 10.3390/plants12244160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/09/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023]
Abstract
The composition and form of selenium in the soil have significant effects on the selenium content of crops. In this study, we investigated the selenium absorption pathway in plants by studying the interaction between nitrogen fertilizer and soil selenium. Our results showed that the selenium concentration enrichment factors (CEF) varied within the same region due to nitrogen fertilizer application, where they ranged from 1.33 to 5.02. The soil selenium flow coefficient (mobility factor, MF) increased with higher nitrogen application rates. The sum of the MF values for each soil layer treated with nitrogen application rates of 192 kg hm-2 and 240 kg hm-2 was 0.70, which was 64% higher than that for the control group with no nitrogen application. In the 0-20 cm soil layer, the highest summed water-soluble and exchangeable selenium and relative percentage of total selenium (12.45%) was observed at a nitrogen application rate of 240 kg hm-2. In the 20-40 cm soil layer, the highest relative percentage content of water-soluble and exchangeable selenium and total selenium (12.66%) was observed at a nitrogen application rate of 192 kg hm-2. Experimental treatment of black wheat with various concentrations of sodium selenite showed that selenium treatment at 50 μmol L-1 significantly increased the reduced glutathione (GSH) levels in the leaves and roots of seedlings, where the GSH contents increased by 155.4% in the leaves and by 91.5% in the roots. Further analysis of the soil-black wheat system showed that nitrogen application in selenium-rich areas affected the soil selenium flow coefficient and morphological composition, thereby changing the enrichment coefficient for leaves (0.823), transport capacity from leaves to grains (-0.530), and enrichment coefficient for roots (0.38). These changes ultimately affected the selenium concentration in the grains of black wheat.
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Affiliation(s)
- Weilin Kong
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
| | - Ruiwen Huo
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
| | - Yu Lu
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
| | - Zhenjie Fan
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
| | - Runqing Yue
- Yangquan Agricultural Technical Service Center, Yangquan 045000, China
| | - Aixia Ren
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
| | - Linghong Li
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
| | - Pengcheng Ding
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
| | - Yongkang Ren
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
| | - Zhiqiang Gao
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
| | - Min Sun
- College of Agriculture, Shanxi Agriculture University, Taigu, Jinzhong 030801, China
- Collaborative Innovation Center for High-Quality and Efficient Production of Characteristic Crops on the Loess Plateau Jointly Built by Provinces and Ministries, Taigu, Jinzhong 030801, China
- Key Laboratory of Functional Agriculture of Ministry of Agriculture and Rural Affairs, Taigu, Jinzhong 030801, China
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18
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Cheng C, Zhao X, Yang H, Coldea TE, Zhao H. Mechanism of selenite tolerance during barley germination: A combination of tissue selenium metabolism alterations and ascorbate-glutathione cycle modulation. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 205:108189. [PMID: 37979575 DOI: 10.1016/j.plaphy.2023.108189] [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: 08/28/2023] [Revised: 10/16/2023] [Accepted: 11/09/2023] [Indexed: 11/20/2023]
Abstract
Selenite is widely used to increase Selenium (Se) content in cereals, however excessive selenite may be toxic to plant growth. In this study, barley was malted to elucidate the action mechanism of selenite in the generation and detoxification of oxidative toxicity. The results showed that high doses (600 μM) of selenite radically increased oxidative stress by the elevated accumulation of superoxide and malondialdehyde, leading to phenotypic symptoms of selenite-induced toxicity like stunted growth. Barley tolerates selenite through a combination of mechanisms, including altering Se distribution in barley, accelerating Se efflux, and increasing the activity of some essential antioxidant enzymes. Low doses (150 μM) of selenite improved barley biomass, respiratory rate, root vigor, and maintained the steady-state equilibrium between reactive oxygen species (ROS) and antioxidant enzyme. Selenite-induced proline may act as a biosignal to mediate the response of barley to Se stress. Furthermore, low doses of selenite increased the glutathione (GSH) and ascorbate (AsA) concentrations by mediating the ascorbate-glutathione cycle (AsA-GSH cycle). GSH intervention and dimethyl selenide volatilization appear to be the primary mechanisms of selenite tolerance in barley. Thus, results from this study will provide a better understanding of the mechanisms of selenite tolerance in crops.
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Affiliation(s)
- Chao Cheng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiujie Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Huirong Yang
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610041, China
| | - Teodora Emilia Coldea
- Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, Cluj-Napoca 400372, Romania; Centre for Technology Transfer-BioTech, 64 Calea Florești, 400509 Cluj-Napoca, Romania
| | - Haifeng Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Research Institute for Food Nutrition and Human Health, Guangzhou 510640, China.
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Wu Z, Yuan L, Sun C, Xu X, Shi W, Han L, Wu C. Effects of selenite on the responses of lettuce (Lactuca sativa L.) to polystyrene nano-plastic stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115138. [PMID: 37320918 DOI: 10.1016/j.ecoenv.2023.115138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 05/30/2023] [Accepted: 06/11/2023] [Indexed: 06/17/2023]
Abstract
Nowadays, nano-plastics are widespread in agricultural soils and could be uptaken by crops to cause an increased risk for food safety. As a beneficial element for plants, selenium (Se) can alleviate oxidative damages under various environmental stresses (eg. heavy metals, heat, cold). This study investigated the single and co-applications of nano-size polystyrene (PS) (80 nm and 200 nm) and selenite (0.8 ppm and 5 ppm) in lettuce (Lactuca sativa L.). Results showed nano-PS significantly decreased the root-shoot fresh biomass ratios, inhibited physiological functions in roots and leaves (e.g. root length, chlorophyll content and net photosynthetic rate), as well as stimulated the activities of the antioxidant enzymes in roots and shoots with greater toxicity at the smaller particle size (80 nm). However, both exogenous selenite applications significantly alleviated the above toxic effects of nano-PS in lettuces, especially at a high Se level of 5 ppm. Regression Path Analysis (RPA) revealed that regulation of chlorophyll levels by Se might be a key mechanism for counteracting PS stress in lettuces, which led to the increase in indigenous defense capacity. The present findings provide a novel but safer and cleaner agricultural strategy to alleviate or minimize nano-plastics toxicity in agricultural soils for staple crops and vegetables via application of Se.
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Affiliation(s)
- Zejun Wu
- Department of Health and Environmental Sciences, School of Science, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu, China
| | - Linxi Yuan
- Department of Health and Environmental Sciences, School of Science, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu, China.
| | - Chengxi Sun
- Department of Health and Environmental Sciences, School of Science, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu, China
| | - Xiao Xu
- Department of Health and Environmental Sciences, School of Science, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu, China
| | - Wenyao Shi
- Department of Health and Environmental Sciences, School of Science, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu, China
| | - Lei Han
- Department of Health and Environmental Sciences, School of Science, Xi'an Jiaotong-Liverpool University, Suzhou 215123, Jiangsu, China
| | - Chenxi Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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