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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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Kudo H, Qian Z, Inoue C, Chien MF. Temperature Dependence of Metals Accumulation and Removal Kinetics by Arabidopsis halleri ssp. gemmifera. PLANTS (BASEL, SWITZERLAND) 2023; 12:877. [PMID: 36840224 PMCID: PMC9966424 DOI: 10.3390/plants12040877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 02/11/2023] [Accepted: 02/13/2023] [Indexed: 06/18/2023]
Abstract
Cadmium (Cd), which is present in zinc (Zn) ore, is a toxic metal and causes contamination globally. Phytoremediation is a promising technology for the remediation of sites with low and moderate contamination. Temperature is an important factor in phytoremediation because it has an impact on both plant biomass and the accumulation of heavy metals. However, little is known about the influence of temperature on heavy metal accumulation by the Cd and Zn hyperaccumulator Arabidopsis halleri ssp. gemmifera. The effect of temperature on the distribution of Cd and Zn in A. halleri ssp. gemmifera and the mechanism of metal removal from solution were investigated in this study. Our results showed that the temperature dependence of the distribution of Cd and Zn in the plant was different, which may suggest that the mechanisms of xylem loading were different between Cd and Zn. Although Cd and Zn have partially similar transport pathways, the removal kinetics based on the first-order reaction rate constant revealed that the temperature which maximized rate of absorption was different between Cd and Zn. This study suggests a potential for efficient Cd phytoextraction using A. halleri ssp gemmifera in Cd and Zn co-existing environments.
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Ren H, Yu Y, Xu Y, Zhang X, Tian X, Gao T. GlPS1 overexpression accumulates coumarin secondary metabolites in transgenic Arabidopsis. PLANT CELL, TISSUE AND ORGAN CULTURE 2022; 152:539-553. [PMID: 36573085 PMCID: PMC9770567 DOI: 10.1007/s11240-022-02427-w] [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: 05/10/2022] [Accepted: 12/01/2022] [Indexed: 06/17/2023]
Abstract
UNLABELLED The dried root of Glehnia littoralis is a traditional Chinese herbal medicine mainly used to treat lung diseases and plays an important role in fighting coronavirus disease 2019 pneumonia in China. This study focused on the key enzyme gene GlPS1 for furanocoumarin synthesis in G. littoralis. In the 35S:GlPS1 transgenic Arabidopsis study, the Arabidopsis thaliana-overexpressing GlPS1 gene was more salt-tolerant than Arabidopsis in the blank group. Metabolomics analysis showed 30 differential metabolites in Arabidopsis, which overexpressed the GlPS1 gene. Twelve coumarin compounds were significantly upregulated, and six of these coumarin compounds were not detected in the blank group. Among these differential coumarin metabolites, isopimpinellin and aesculetin have been annotated by the Kyoto Encyclopedia of Genes and Genomes and isopimpinellin was not detected in the blank group. Through structural comparison, imperatorin was formed by dehydration and condensation of zanthotoxol and a molecule of isoprenol, and the difference between them was only one isoprene. Results showed that the GlPS1 gene positively regulated the synthesis of coumarin metabolites in A. thaliana and at the same time improved the salt tolerance of A. thaliana. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11240-022-02427-w.
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Affiliation(s)
- Hongwei Ren
- Laboratory of Plant Biotechnology in Universities of Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109 People’s Republic of China
| | - Yanchong Yu
- Laboratory of Plant Biotechnology in Universities of Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109 People’s Republic of China
| | - Yao Xu
- Laboratory of Plant Biotechnology in Universities of Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109 People’s Republic of China
| | - Xinfang Zhang
- Laboratory of Plant Biotechnology in Universities of Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109 People’s Republic of China
| | - Xuemei Tian
- Laboratory of Plant Biotechnology in Universities of Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109 People’s Republic of China
| | - Ting Gao
- Laboratory of Plant Biotechnology in Universities of Shandong Province, College of Life Sciences, Qingdao Agricultural University, Qingdao, 266109 People’s Republic of China
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Shi G, Liu H, Zhou D, Zhou H, Fan G, Chen W, Li J, Lou L, Gao Y. Sulfur reduces the root-to-shoot translocation of arsenic and cadmium by regulating their vacuolar sequestration in wheat ( Triticum aestivum L.). FRONTIERS IN PLANT SCIENCE 2022; 13:1032681. [PMID: 36275602 PMCID: PMC9580998 DOI: 10.3389/fpls.2022.1032681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
Accumulation of arsenic (As) and cadmium (Cd) in wheat grain is a serious threat to human health. Sulfur (S) can simultaneously decrease wheat grain As and Cd concentrations by decreasing their translocation in wheat; however, the mechanisms are unclear. We conducted hydroponic experiments to explore the mechanisms by which S modulates As and Cd translocation and their toxicity in wheat. Wheat seedlings were grown in deficient sulfate (2.5 µM) or sufficient sulfate (1.0 mM) nutrient solutions for 6 days and then exposed to zero (control), low As+Cd (1 µM As plus 0.5 µM Cd), or high As+Cd (50 µM As plus 30 µM Cd) for another 6 days. Compared with the control, plant growth was not affected by low As+Cd, but was significantly inhibited by high As+Cd. In the low As+Cd treatment, S supply had no significant effect on plant growth or root-to-shoot As and Cd translocation. In the high As+Cd treatment, sufficient S supply significantly alleviated As and Cd toxicity and their translocation by increasing phytochelatin (PC) synthesis and the subsequent vacuolar sequestration of As and Cd in roots, compared with deficient S supply. The use of L-buthionine sulfoximine (a specific inhibitor of γ-glutamylcysteine synthetase) confirmed that the alleviation of As and Cd translocation and toxicity in wheat by S is mediated by increased PC production. Also, TaHMA3 gene expression in wheat root was not affected by the As+Cd and S treatments, but the expression of TaABCC1 was upregulated by the high As+Cd treatment and further increased by sufficient S supply and high As+Cd treatment. These results indicate that S-induced As and Cd subcellular changes affect As and Cd translocation mainly by regulating thiol metabolism and ABCC1 expression in wheat under As and Cd stress.
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Affiliation(s)
- Gaoling Shi
- Key Laboratory of Agro-Environment in Downstream of Yangtze River Plain, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, China
- Luhe Agro-Environment Experimental Station of National Agricultural Observation and Research Station, Nanjing, China
| | - Huan Liu
- Key Laboratory of Agro-Environment in Downstream of Yangtze River Plain, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, China
| | - Huimin Zhou
- Key Laboratory of Agro-Environment in Downstream of Yangtze River Plain, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Guangping Fan
- Key Laboratory of Agro-Environment in Downstream of Yangtze River Plain, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Wei Chen
- Key Laboratory of Agro-Environment in Downstream of Yangtze River Plain, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Jiangye Li
- Key Laboratory of Agro-Environment in Downstream of Yangtze River Plain, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
| | - Laiqing Lou
- College of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Yan Gao
- Key Laboratory of Agro-Environment in Downstream of Yangtze River Plain, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing, China
- Luhe Agro-Environment Experimental Station of National Agricultural Observation and Research Station, Nanjing, China
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Bhardwaj A. Understanding the diversified microbial operon framework coupled to arsenic transformation and expulsion. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01198-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Transcriptome Analysis Reveals the Stress Tolerance to and Accumulation Mechanisms of Cadmium in Paspalum vaginatum Swartz. PLANTS 2022; 11:plants11162078. [PMID: 36015382 PMCID: PMC9414793 DOI: 10.3390/plants11162078] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 07/30/2022] [Accepted: 07/30/2022] [Indexed: 01/08/2023]
Abstract
Cadmium (Cd) is a non-essential heavy metal and high concentrations in plants causes toxicity of their edible parts and acts as a carcinogen to humans and animals. Paspalum vaginatum is widely cultivating as turfgrass due to its higher abiotic stress tolerance ability. However, there is no clear evidence to elucidate the mechanism for heavy metal tolerance, including Cd. In this study, an RNA sequencing technique was employed to investigate the key genes associated with Cd stress tolerance and accumulation in P. vaginatum. The results revealed that antioxidant enzyme activities catalase (CAT), peroxidase (POD), superoxide dismutase (SOD), and glutathione S-transferase GST) were significantly higher at 24 h than in other treatments. A total of 6820 (4457/2363, up-/down-regulated), 14,038 (9894/4144, up-/down-regulated) and 17,327 (7956/9371, up-/down-regulated) differentially expressed genes (DEGs) between the Cd1 vs. Cd0, Cd4 vs. Cd0, and Cd24 vs. Cd0, respectively, were identified. The GO analysis and the KEGG pathway enrichment analysis showed that DEGs participated in many significant pathways in response to Cd stress. The response to abiotic stimulus, the metal transport mechanism, glutathione metabolism, and the consistency of transcription factor activity were among the most enriched pathways. The validation of gene expression by qRT-PCR results showed that heavy metal transporters and signaling response genes were significantly enriched with increasing sampling intervals, presenting consistency to the transcriptome data. Furthermore, over-expression of PvSnRK2.7 can positively regulate Cd-tolerance in Arabidopsis. In conclusion, our results provided a novel molecular mechanism of the Cd stress tolerance of P. vaginatum and will lay the foundation for target breeding of Cd tolerance in turfgrass.
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Liu HR, Shen C, Hassani D, Fang WQ, Wang ZY, Lu Y, Zhu RL, Zhao Q. Vacuoles in Bryophytes: Properties, Biogenesis, and Evolution. FRONTIERS IN PLANT SCIENCE 2022; 13:863389. [PMID: 35747879 PMCID: PMC9209779 DOI: 10.3389/fpls.2022.863389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Vacuoles are the most conspicuous organelles in plants for their indispensable functions in cell expansion, solute storage, water balance, etc. Extensive studies on angiosperms have revealed that a set of conserved core molecular machineries orchestrate the formation of vacuoles from multiple pathways. Usually, vacuoles in seed plants are classified into protein storage vacuoles and lytic vacuoles for their distinctive morphology and physiology function. Bryophytes represent early diverged non-vascular land plants, and are of great value for a better understanding of plant science. However, knowledge about vacuole morphology and biogenesis is far less characterized in bryophytes. In this review, first we summarize known knowledge about the morphological and metabolic constitution properties of bryophytes' vacuoles. Then based on known genome information of representative bryophytes, we compared the conserved molecular machinery for vacuole biogenesis among different species including yeast, mammals, Arabidopsis and bryophytes and listed out significant changes in terms of the presence/absence of key machinery genes which participate in vacuole biogenesis. Finally, we propose the possible conserved and diverged mechanism for the biogenesis of vacuoles in bryophytes compared with seed plants.
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Affiliation(s)
- Hao-ran Liu
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Chao Shen
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Danial Hassani
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Wan-qi Fang
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhi-yi Wang
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Yi Lu
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Rui-liang Zhu
- School of Life Sciences, East China Normal University, Shanghai, China
| | - Qiong Zhao
- School of Life Sciences, East China Normal University, Shanghai, China
- Institute of Eco-Chongming, Shanghai, China
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8
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Wu L, Yu Y, Hu H, Tao Y, Song P, Li D, Guan Y, Gao H, Sui X, Volodymyr T, Volodymyr V, Zhatova H, Li C. New SFT2-like Vesicle Transport Protein (SFT2L) Enhances Cadmium Tolerance and Reduces Cadmium Accumulation in Common Wheat Grains. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:5526-5540. [PMID: 35484643 DOI: 10.1021/acs.jafc.1c08021] [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: 06/14/2023]
Abstract
Cadmium (Cd) is one of the most toxic heavy metal elements to the environment, which seriously threatens the safe production of food crops. In this study, we identified a novel function of the cytomembrane TaSFT2L protein in wheat (Triticum aestivum). Expression of the TaSFT2L gene in yeast showed no transport activities for Cd, which could explain the role of TaSFT2L in metal tolerance. It was observed that increased autophagic activity in roots caused by silencing of TaSFT2L enhanced Cd tolerance. Transgenic wheat revealed that RNA interference (RNAi) lines enhanced the wheat growth concerning the increased shoot or root elongation, dry weight, and chlorophyll accumulation. Furthermore, RNAi lines decreased root-to-grain Cd translocation in wheat by nearly 68% and Cd accumulation in wheat grains by 53%. Meanwhile, the overexpression lines displayed a compromised growth response and increased Cd accumulation in wheat tissues, compared to wild type. These findings show that TaSFT2L is a key gene involved in regulation of Cd translocation in wheat, and its silencing to form transgenic wheat can inhibit Cd accumulation. This has the ability to alleviate the food chain-associated impact of environmental pollution on human health.
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Affiliation(s)
- Liuliu Wu
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
- Sumy National Agrarian University, Sumy 40021, Ukraine
| | - Yongang Yu
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Haiyan Hu
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Ye Tao
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
- Sumy National Agrarian University, Sumy 40021, Ukraine
| | - Puwen Song
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Dongxiao Li
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Yuanyuan Guan
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Huanting Gao
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Xiaotian Sui
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
| | | | | | | | - Chengwei Li
- College of Life Science and Technology/Henan Engineering Research Center of Crop Genome Editing/Henan International Joint Laboratory of Plant Genetic Improvement and Soil Remediation/Collaborative Innovation Center of Modern Biological Breeding of Henan Province, Henan Institute of Science and Technology, Xinxiang 453003, China
- College of Biological Engineering, Henan University of Technology, Zhengzhou 450000, China
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Application of Exogenous Iron Alters the Microbial Community Structure and Reduces the Accumulation of Cadmium and Arsenic in Rice ( Oryza sativa L.). NANOMATERIALS 2022; 12:nano12081311. [PMID: 35458019 PMCID: PMC9028164 DOI: 10.3390/nano12081311] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 12/07/2022]
Abstract
Cadmium (Cd) and arsenic (As) contamination of soil has been a public concern due to their potential accumulation risk through the food chain. This study was conducted to investigate the performance of ferrous sulfate (FeSO4) and ferric oxide (Fe2O3) nanoparticle (Nano-Fe) to stabilize the concentrations of Cd and As in paddy soil. Both Fe treatments led to low extractable Cd and the contents of specifically sorbed As contents, increased (p < 0.05) the Shannon index and decreased (p < 0.05) the Simpson diversity indices compared with the control. Nano-Fe increased the relative abundances of Firmicutes and Proteobacteria and decreased the abundances of Acidobacteria and Chloroflexi. Moreover, the addition of both forms of Fe promoted the formation of Fe plaque and decreased the translocation factor index (TFs) root/soil, TFs shoot/root, and TFs grain/shoot of Cd and As. These results suggest that exogenous Fe may modify the microbial community and decrease the soil available Cd and As contents, inhibit the absorption of Cd and As by the roots and decrease the transport of Cd and As in rice grains and the risk intake in humans. These findings demonstrate that soil amendment with exogenous Fe, particularly Nano-Fe, is a potential approach to simultaneously remediate the accumulation of Cd and As from the soil to rice grain systems.
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Huang Q, Qiu W, Yu M, Li S, Lu Z, Zhu Y, Kan X, Zhuo R. Genome-Wide Characterization of Sedum plumbizincicola HMA Gene Family Provides Functional Implications in Cadmium Response. PLANTS 2022; 11:plants11020215. [PMID: 35050103 PMCID: PMC8779779 DOI: 10.3390/plants11020215] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/26/2022]
Abstract
Heavy-metal ATPase (HMA), an ancient family of transition metal pumps, plays important roles in the transmembrane transport of transition metals such as Cu, Zn, Cd, and Co. Although characterization of HMAs has been conducted in several plants, scarcely knowledge was revealed in Sedum plumbizincicola, a type of cadmium (Cd) hyperaccumulator found in Zhejiang, China. In this study, we first carried out research on genome-wide analysis of the HMA gene family in S. plumbizincicola and finally identified 8 SpHMA genes and divided them into two subfamilies according to sequence alignment and phylogenetic analysis. In addition, a structural analysis showed that SpHMAs were relatively conserved during evolution. All of the SpHMAs contained the HMA domain and the highly conserved motifs, such as DKTGT, GDGxNDxP, PxxK S/TGE, HP, and CPx/SPC. A promoter analysis showed that the majority of the SpHMA genes had cis-acting elements related to the abiotic stress response. The expression profiles showed that most SpHMAs exhibited tissue expression specificity and their expression can be regulated by different heavy metal stress. The members of Zn/Co/Cd/Pb subgroup (SpHMA1-3) were verified to be upregulated in various tissues when exposed to CdCl2. Here we also found that the expression of SpHMA7, which belonged to the Cu/Ag subgroup, had an upregulated trend in Cd stress. Overexpression of SpHMA7 in transgenic yeast indicated an improved sensitivity to Cd. These results provide insights into the evolutionary processes and potential functions of the HMA gene family in S. plumbizincicola, laying a theoretical basis for further studies on figuring out their roles in regulating plant responses to biotic/abiotic stresses.
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Affiliation(s)
- Qingyu Huang
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, China;
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
- Key Laboratory of Tree Breeding of Zhejiang Province, The Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Wenmin Qiu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
- Key Laboratory of Tree Breeding of Zhejiang Province, The Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Miao Yu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
| | - Shaocui Li
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
| | - Zhuchou Lu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
| | - Yue Zhu
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
| | - Xianzhao Kan
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, China;
- Correspondence: (X.K.); (R.Z.); Tel.: +86-139-5537-2268 (X.K.); +86-0571-63311860 (R.Z.)
| | - Renying Zhuo
- State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry, Beijing 100091, China; (W.Q.); (M.Y.); (S.L.); (Z.L.); (Y.Z.)
- Key Laboratory of Tree Breeding of Zhejiang Province, The Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
- Correspondence: (X.K.); (R.Z.); Tel.: +86-139-5537-2268 (X.K.); +86-0571-63311860 (R.Z.)
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11
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Destailleur A, Poucet T, Cabasson C, Alonso AP, Cocuron JC, Larbat R, Vercambre G, Colombié S, Petriacq P, Andrieu MH, Beauvoit B, Gibon Y, Dieuaide-Noubhani M. The Evolution of Leaf Function during Development Is Reflected in Profound Changes in the Metabolic Composition of the Vacuole. Metabolites 2021; 11:metabo11120848. [PMID: 34940606 PMCID: PMC8707551 DOI: 10.3390/metabo11120848] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/30/2021] [Accepted: 12/02/2021] [Indexed: 11/16/2022] Open
Abstract
During its development, the leaf undergoes profound metabolic changes to ensure, among other things, its growth. The subcellular metabolome of tomato leaves was studied at four stages of leaf development, with a particular emphasis on the composition of the vacuole, a major actor of cell growth. For this, leaves were collected at different positions of the plant, corresponding to different developmental stages. Coupling cytology approaches to non-aqueous cell fractionation allowed to estimate the subcellular concentrations of major compounds in the leaves. The results showed major changes in the composition of the vacuole across leaf development. Thus, sucrose underwent a strong allocation, being mostly located in the vacuole at the beginning of development and in the cytosol at maturity. Furthermore, these analyses revealed that the vacuole, rather rich in secondary metabolites and sugars in the growth phases, accumulated organic acids thereafter. This result suggests that the maintenance of the osmolarity of the vacuole of mature leaves would largely involve inorganic molecules.
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Affiliation(s)
- Alice Destailleur
- UMR Biologie du Fruit et Pathologie, Université de Bordeaux, INRAE, F-33140 Villenave d’Ornon, France; (A.D.); (T.P.); (C.C.); (S.C.); (P.P.); (M.H.A.); (B.B.); (Y.G.)
| | - Théo Poucet
- UMR Biologie du Fruit et Pathologie, Université de Bordeaux, INRAE, F-33140 Villenave d’Ornon, France; (A.D.); (T.P.); (C.C.); (S.C.); (P.P.); (M.H.A.); (B.B.); (Y.G.)
| | - Cécile Cabasson
- UMR Biologie du Fruit et Pathologie, Université de Bordeaux, INRAE, F-33140 Villenave d’Ornon, France; (A.D.); (T.P.); (C.C.); (S.C.); (P.P.); (M.H.A.); (B.B.); (Y.G.)
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, F-33140 Villenave d’Ornon, France
| | - Ana Paula Alonso
- Department of Biological Sciences, BioDiscovery Institute, University of North Texas, Denton, TX 76203, USA;
| | | | - Romain Larbat
- LAE, Université de Lorraine, INRAE, F-54000 Nancy, France;
| | - Gilles Vercambre
- Plants and Cropping Systems in Horticulture, INRAE, F-84914 Avignon, France;
| | - Sophie Colombié
- UMR Biologie du Fruit et Pathologie, Université de Bordeaux, INRAE, F-33140 Villenave d’Ornon, France; (A.D.); (T.P.); (C.C.); (S.C.); (P.P.); (M.H.A.); (B.B.); (Y.G.)
| | - Pierre Petriacq
- UMR Biologie du Fruit et Pathologie, Université de Bordeaux, INRAE, F-33140 Villenave d’Ornon, France; (A.D.); (T.P.); (C.C.); (S.C.); (P.P.); (M.H.A.); (B.B.); (Y.G.)
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, F-33140 Villenave d’Ornon, France
| | - Marie Hélène Andrieu
- UMR Biologie du Fruit et Pathologie, Université de Bordeaux, INRAE, F-33140 Villenave d’Ornon, France; (A.D.); (T.P.); (C.C.); (S.C.); (P.P.); (M.H.A.); (B.B.); (Y.G.)
| | - Bertrand Beauvoit
- UMR Biologie du Fruit et Pathologie, Université de Bordeaux, INRAE, F-33140 Villenave d’Ornon, France; (A.D.); (T.P.); (C.C.); (S.C.); (P.P.); (M.H.A.); (B.B.); (Y.G.)
| | - Yves Gibon
- UMR Biologie du Fruit et Pathologie, Université de Bordeaux, INRAE, F-33140 Villenave d’Ornon, France; (A.D.); (T.P.); (C.C.); (S.C.); (P.P.); (M.H.A.); (B.B.); (Y.G.)
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, F-33140 Villenave d’Ornon, France
| | - Martine Dieuaide-Noubhani
- UMR Biologie du Fruit et Pathologie, Université de Bordeaux, INRAE, F-33140 Villenave d’Ornon, France; (A.D.); (T.P.); (C.C.); (S.C.); (P.P.); (M.H.A.); (B.B.); (Y.G.)
- Correspondence:
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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: 35] [Impact Index Per Article: 11.7] [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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Zhang W, Zhao Y, Xu Z, Huang H, Zhou J, Yang G. Morphological and Physiological Changes of Broussonetia papyrifera Seedlings in Cadmium Contaminated Soil. PLANTS 2020; 9:plants9121698. [PMID: 33287206 PMCID: PMC7761668 DOI: 10.3390/plants9121698] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/27/2020] [Accepted: 12/01/2020] [Indexed: 11/17/2022]
Abstract
Broussonetia papyrifera is a widely distributed economic tree species, and it is also a pioneer species in adverse environments. In order to investigate the growth and adaptation mechanism of B. papyrifera under cadmium (Cd) contaminated soil, potted experiments were used with six-month treatments to study Cd enrichment and the transportation, morphological and physiological characteristics of B. papyrifera tissues. The results showed that Cd mainly accumulated in the root when the Cd concentration was high (14.71 mg/kg), and the root biomass was significantly reduced by Cd stress although Cd promoted the growth of seedlings. The bioconcentration factors (BCF) increased with the increase in Cd concentration, and reached the maximum value of 0.21 at 14.71 mg/kg. On the contrary, translocation factor (TF) decreased significantly at 8.28–14.71 mg/kg Cd concentration. Cd not only led to the loose arrangement of the xylem vessels of leaves, but also changed the chlorophyll content. However, B. papyrifera could synthesize organic solutes such as soluble protein, soluble sugar and proline to reduce the intracellular osmotic potential. Our study proved that B. papyrifera has good tolerance to Cd stress and is a pioneer tree species for soil and ecological environment restoration.
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Affiliation(s)
- Wan Zhang
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha 410004, China; (W.Z.); (Y.Z.); (H.H.); (J.Z.)
| | - Yunlin Zhao
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha 410004, China; (W.Z.); (Y.Z.); (H.H.); (J.Z.)
| | - Zhenggang Xu
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha 410004, China; (W.Z.); (Y.Z.); (H.H.); (J.Z.)
- College of Forestry, Northwest A & F University, Yangling 712100, China;
- Correspondence: ; Tel.: +86-186-8494-5647
| | - Huimin Huang
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha 410004, China; (W.Z.); (Y.Z.); (H.H.); (J.Z.)
| | - Jiakang Zhou
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha 410004, China; (W.Z.); (Y.Z.); (H.H.); (J.Z.)
| | - Guiyan Yang
- College of Forestry, Northwest A & F University, Yangling 712100, China;
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Halim MA, Rahman MM, Megharaj M, Naidu R. Cadmium Immobilization in the Rhizosphere and Plant Cellular Detoxification: Role of Plant-Growth-Promoting Rhizobacteria as a Sustainable Solution. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:13497-13529. [PMID: 33170689 DOI: 10.1021/acs.jafc.0c04579] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Food is the major cadmium (Cd)-exposure pathway from agricultural soils to humans and other living entities and must be reduced in an effective way. A plant can select beneficial microbes, like plant-growth-promoting rhizobacteria (PGPR), depending upon the nature of root exudates in the rhizosphere, for its own benefits, such as plant growth promotion as well as protection from metal toxicity. This review intends to seek out information on the rhizo-immobilization of Cd in polluted soils using the PGPR along with plant nutrient fertilizers. This review suggests that the rhizo-immobilization of Cd by a combination of PGPR and nanohybrid-based plant nutrient fertilizers would be a potential and sustainable technology for phytoavailable Cd immobilization in the rhizosphere and plant cellular detoxification, by keeping the plant nutrition flow and green dynamics of plant nutrition and boosting the plant growth and development under Cd stress.
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Affiliation(s)
- Md Abdul Halim
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Department of Biotechnology, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Mohammad Mahmudur Rahman
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, New South Wales 2308, Australia
| | - Mallavarapu Megharaj
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, New South Wales 2308, Australia
| | - Ravi Naidu
- Global Centre for Environmental Remediation (GCER), The University of Newcastle, Callaghan, New South Wales 2308, Australia
- Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), The University of Newcastle, Callaghan, New South Wales 2308, Australia
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Komárková M, Chromý J, Pokorná E, Soudek P, Máchová P. Physiological and Transcriptomic Response of Grey Poplar ( Populus ×canescens Aiton Sm.) to Cadmium Stress. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1485. [PMID: 33158073 PMCID: PMC7694188 DOI: 10.3390/plants9111485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 12/22/2022]
Abstract
(1) Background: Populus ×canescens (Aiton) Sm. is a fast-growing woody plant belonging to the family Salicaceae. Two poplar genotypes characterized by unique phenotypic traits (TP11 and TP20) were chosen to be characterized and tested for a physiological and transcriptomic response to Cd stress. (2) Methods: A comparative analysis of the effects of exposure to high cadmium (Cd) concentrations (10 µM and 100 µM) of TP11 and TP20 was performed. (3) Results: Neither of the tested Cd concentration negatively affected plant growth; however, the chlorophyll content significantly decreased. The potassium (K) content was higher in the shoots than in the roots. The magnesium concentrations were only slightly affected by Cd treatment. The zinc content in the shoots of TP20 was lower than that in the shoots of TP11. Cd accumulation was higher in the roots than in the shoots. After 10 days of exposure, 10 µM Cd resulted in comparable amounts of Cd in the roots and shoots of TP20. The most significant change in transcript amount was observed in endochitinase 2, 12-oxophytodienoate reductase 1 and phi classglutathione S-transferase. (4) Conclusions: Our study provided new insights for effective assessing the ability of different poplar genotypes to tolerate Cd stress and underlying Cd tolerance.
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Affiliation(s)
- Martina Komárková
- Forestry and Game Management Research Institute, Strnady, 25202 Jiloviste, Czech Republic; (J.C.); (E.P.); (P.M.)
| | - Jakub Chromý
- Forestry and Game Management Research Institute, Strnady, 25202 Jiloviste, Czech Republic; (J.C.); (E.P.); (P.M.)
| | - Eva Pokorná
- Forestry and Game Management Research Institute, Strnady, 25202 Jiloviste, Czech Republic; (J.C.); (E.P.); (P.M.)
| | - Petr Soudek
- The Czech Academy of Sciences, Institute of Experimental Botany, 16502 Prague, Czech Republic;
| | - Pavlína Máchová
- Forestry and Game Management Research Institute, Strnady, 25202 Jiloviste, Czech Republic; (J.C.); (E.P.); (P.M.)
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Xiao Y, Wu X, Liu D, Yao J, Liang G, Song H, Ismail AM, Luo JS, Zhang Z. Cell Wall Polysaccharide-Mediated Cadmium Tolerance Between Two Arabidopsis thaliana Ecotypes. FRONTIERS IN PLANT SCIENCE 2020; 11:473. [PMID: 32477379 PMCID: PMC7239314 DOI: 10.3389/fpls.2020.00473] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/30/2020] [Indexed: 05/07/2023]
Abstract
Cadmium (Cd) is a toxic metal element and the mechanism(s) underlying Cd tolerance in plants are still unclear. Increasingly more studies have been conducted on Cd binding to plant cell walls (CW) but most of them have focused on Cd fixation by CW pectin, and few studies have examined Cd binding to cellulose and hemicellulose. Here we found that Cd binding to CW pectin, cellulose, and hemicellulose was significantly higher in Tor-1, a Cd tolerant A. thaliana ecotype, than in Ph2-23, a sensitive ecotype, as were the concentrations of pectin, cellulose, and hemicellulose. Transcriptome analysis revealed that the genes regulating CW pectin, cellulose, and hemicellulose polysaccharide concentrations in Tor-1 differed significantly from those in Ph2-23. The expressions of most genes such as pectin methyl esterase inhibitors (PMEIs), pectin lyases, xyloglucan endotransglucosylase/hydrolase, expansins (EXPAs), and cellulose hydrolase were higher in Ph2-23, while the expressions of cellulose synthase-like glycosyltransferase 3 (CSLG3) and pectin ethyl esterase 4 (PAE4) were higher in Tor-1. The candidate genes identified here seem to regulate CW Cd fixation by polysaccharides. In conclusion, an increase in pectin demethylation activity, the higher concentration of cellulose and hemicellulose, regulated by related genes, in Tor-1 than in Ph2-23 are likely involved in enhanced Cd CW retention and reduce Cd toxicity.
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Affiliation(s)
- Yan Xiao
- Southern Regional Collaborative Innovation Centre for Grain and Oil Crops in China, College of Resources and Environmental Sciences, Hunan Agricultural University, Changsha, China
- National Centre of Oilseed Crops Improvement, Hunan Branch, Changsha, China
| | - Xiuwen Wu
- Southern Regional Collaborative Innovation Centre for Grain and Oil Crops in China, College of Resources and Environmental Sciences, Hunan Agricultural University, Changsha, China
- National Centre of Oilseed Crops Improvement, Hunan Branch, Changsha, China
| | - Dong Liu
- Southern Regional Collaborative Innovation Centre for Grain and Oil Crops in China, College of Resources and Environmental Sciences, Hunan Agricultural University, Changsha, China
- National Centre of Oilseed Crops Improvement, Hunan Branch, Changsha, China
| | - Junyue Yao
- Southern Regional Collaborative Innovation Centre for Grain and Oil Crops in China, College of Resources and Environmental Sciences, Hunan Agricultural University, Changsha, China
- National Centre of Oilseed Crops Improvement, Hunan Branch, Changsha, China
| | - Guihong Liang
- Southern Regional Collaborative Innovation Centre for Grain and Oil Crops in China, College of Resources and Environmental Sciences, Hunan Agricultural University, Changsha, China
- National Centre of Oilseed Crops Improvement, Hunan Branch, Changsha, China
| | - Haixing Song
- Southern Regional Collaborative Innovation Centre for Grain and Oil Crops in China, College of Resources and Environmental Sciences, Hunan Agricultural University, Changsha, China
- National Centre of Oilseed Crops Improvement, Hunan Branch, Changsha, China
| | | | - Jin-Song Luo
- Southern Regional Collaborative Innovation Centre for Grain and Oil Crops in China, College of Resources and Environmental Sciences, Hunan Agricultural University, Changsha, China
- National Centre of Oilseed Crops Improvement, Hunan Branch, Changsha, China
| | - Zhenhua Zhang
- Southern Regional Collaborative Innovation Centre for Grain and Oil Crops in China, College of Resources and Environmental Sciences, Hunan Agricultural University, Changsha, China
- National Centre of Oilseed Crops Improvement, Hunan Branch, Changsha, China
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De Caroli M, Furini A, DalCorso G, Rojas M, Di Sansebastiano GP. Endomembrane Reorganization Induced by Heavy Metals. PLANTS (BASEL, SWITZERLAND) 2020; 9:E482. [PMID: 32283794 PMCID: PMC7238196 DOI: 10.3390/plants9040482] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/04/2020] [Accepted: 04/07/2020] [Indexed: 12/18/2022]
Abstract
Plant cells maintain plasmatic concentrations of essential heavy metal ions, such as iron, zinc, and copper, within the optimal functional range. To do so, several molecular mechanisms have to be committed to maintain concentrations of non-essential heavy metals and metalloids, such as cadmium, mercury and arsenic below their toxicity threshold levels. Compartmentalization is central to heavy metals homeostasis and secretory compartments, finely interconnected by traffic mechanisms, are determinant. Endomembrane reorganization can have unexpected effects on heavy metals tolerance altering in a complex way membrane permeability, storage, and detoxification ability beyond gene's expression regulation. The full understanding of endomembrane role is propaedeutic to the comprehension of translocation and hyper-accumulation mechanisms and their applicative employment. It is evident that further studies on dynamic localization of these and many more proteins may significantly contribute to the understanding of heavy metals tolerance mechanisms. The aim of this review is to provide an overview about the endomembrane alterations involved in heavy metals compartmentalization and tolerance in plants.
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Affiliation(s)
- Monica De Caroli
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy; (M.D.C.); (M.R.)
| | - Antonella Furini
- Department of Biotechnology, University of Verona, 37134 Verona, Italy; (A.F.); (G.D.)
| | - Giovanni DalCorso
- Department of Biotechnology, University of Verona, 37134 Verona, Italy; (A.F.); (G.D.)
| | - Makarena Rojas
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy; (M.D.C.); (M.R.)
| | - Gian-Pietro Di Sansebastiano
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, 73100 Lecce, Italy; (M.D.C.); (M.R.)
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Hu B, Deng F, Chen G, Chen X, Gao W, Long L, Xia J, Chen ZH. Evolution of Abscisic Acid Signaling for Stress Responses to Toxic Metals and Metalloids. FRONTIERS IN PLANT SCIENCE 2020; 11:909. [PMID: 32765540 PMCID: PMC7379394 DOI: 10.3389/fpls.2020.00909] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/03/2020] [Indexed: 05/02/2023]
Abstract
Toxic heavy metals and metalloids in agricultural ecosystems are crucial factors that limit global crop productivity and food safety. Industrial toxic heavy metals and metalloids such as cadmium, lead, and arsenic have contaminated large areas of arable land in the world and their accumulation in the edible parts of crops is causing serious health risks to humans and animals. Plants have co-evolved with various concentrations of these toxic metals and metalloids in soil and water. Some green plant species have significant innovations in key genes for the adaptation of abiotic stress tolerance pathways that are able to tolerate heavy metals and metalloids. Increasing evidence has demonstrated that phytohormone abscisic acid (ABA) plays a vital role in the alleviation of heavy metal and metalloid stresses in plants. Here, we trace the evolutionary origins of the key gene families connecting ABA signaling with tolerance to heavy metals and metalloids in green plants. We also summarize the molecular and physiological aspects of ABA in the uptake, root-to-shoot translocation, chelation, sequestration, reutilization, and accumulation of key heavy metals and metalloids in plants. The molecular evolution and interaction between the ABA signaling pathway and mechanisms for heavy metal and metalloid tolerance are highlighted in this review. Therefore, we propose that it is promising to manipulate ABA signaling in plant tissues to reduce the uptake and accumulation of toxic heavy metals and metalloids in crops through the application of ABA-producing bacteria or ABA analogues. This may lead to improvements in tolerance of major crops to heavy metals and metalloids.
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Affiliation(s)
- Beibei Hu
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education/Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
| | - Fenglin Deng
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education/Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
- *Correspondence: Fenglin Deng, ; Zhong-Hua Chen,
| | - Guang Chen
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education/Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
| | - Xuan Chen
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education/Hubei Key Laboratory of Waterlogging Disaster and Agricultural Use of Wetland, Yangtze University, Jingzhou, China
| | - Wei Gao
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, China
| | - Lu Long
- State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, China
| | - Jixing Xia
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Guangxi University, Nanning, China
| | - Zhong-Hua Chen
- School of Science, Western Sydney University, Penrith, NSW, Australia
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia
- *Correspondence: Fenglin Deng, ; Zhong-Hua Chen,
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Begum N, Hu Z, Cai Q, Lou L. Influence of PGPB Inoculation on HSP70 and HMA3 Gene Expression in Switchgrass under Cadmium Stress. PLANTS (BASEL, SWITZERLAND) 2019; 8:E504. [PMID: 31739628 PMCID: PMC6918137 DOI: 10.3390/plants8110504] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/13/2019] [Accepted: 11/13/2019] [Indexed: 11/16/2022]
Abstract
This study aimed to evaluate the gene expression of HSP70 and HMA3 in the switchgrass inoculated with plant-growth-promoting-bacteria (PGPB) under cadmium (Cd) stress and to observe the benefit of PGPB in plant growth and development. Plants were grown in hydroponic culture and treated with PGPB inoculants: Pseudomonas grimontii, Pantoea vagans, Pseudomonas veronii, and Pseudomonas fluorescens with the strains Bc09, So23, E02, and Oj24, respectively. The experimental results revealed that HSP70 and HMA3 genes expressed highly in the PGPB-inoculated plants under Cd stress. In addition, the expression of HSP70 and HMA3 genes was considerably higher in the first two days after successive four-day exposure of Cd in plants compared to the last two days of exposure. Increased biomass and indole-3-acetic-acid production with reduced Cd accumulation were observed in the PGPB-inoculated plants under Cd stress compared to the Cd-control plants. These PGPB, with their beneficial mechanisms, protect plants by modifying the gene expression profile that arises during Cd-toxic conditions and increased the healthy biomass of switchgrass. This demonstrates there is a correlation among the growth parameters under Cd stress. The PGPB in this study may help to intensify agriculture by triggering mechanisms to encourage plant growth and development under heavy metal stress.
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Affiliation(s)
- Nahmina Begum
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China;
| | | | - Qingsheng Cai
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China;
| | - Laiqing Lou
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China;
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20
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Tan X, Li K, Wang Z, Zhu K, Tan X, Cao J. A Review of Plant Vacuoles: Formation, Located Proteins, and Functions. PLANTS 2019; 8:plants8090327. [PMID: 31491897 PMCID: PMC6783984 DOI: 10.3390/plants8090327] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/22/2019] [Accepted: 09/04/2019] [Indexed: 12/19/2022]
Abstract
Vacuoles, cellular membrane-bound organelles, are the largest compartments of cells, occupying up to 90% of the volume of plant cells. Vacuoles are formed by the biosynthetic and endocytotic pathways. In plants, the vacuole is crucial for growth and development and has a variety of functions, including storage and transport, intracellular environmental stability, and response to injury. Depending on the cell type and growth conditions, the size of vacuoles is highly dynamic. Different types of cell vacuoles store different substances, such as alkaloids, protein enzymes, inorganic salts, sugars, etc., and play important roles in multiple signaling pathways. Here, we summarize vacuole formation, types, vacuole-located proteins, and functions.
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Affiliation(s)
- Xiaona Tan
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Kaixia Li
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Zheng Wang
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Keming Zhu
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Xiaoli Tan
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
| | - Jun Cao
- Institute of Life Sciences, Jiangsu University, Zhenjiang 212013, China.
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21
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Garg N, Kashyap L. Joint effects of Si and mycorrhiza on the antioxidant metabolism of two pigeonpea genotypes under As (III) and (V) stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:7821-7839. [PMID: 30680683 DOI: 10.1007/s11356-019-04256-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 01/15/2019] [Indexed: 06/09/2023]
Abstract
Arsenic (As) is the most hazardous soil contaminant, which inactivates metabolic enzymes and restrains plant growth. To withstand As stress conditions, use of some alleviative tools, such as arbuscular mycorrhizal (AM) fungi and silicon (Si), has gained importance. Therefore, the present study evaluated comparative and interactive effects of Si and arbuscular mycorrhiza-Rhizophagus irregularis on phytotoxicity of arsenate (As V) and arsenite (As III) on plant growth, ROS generation, and antioxidant defense responses in pigeonpea genotypes (Tolerant-Pusa 2002; Sensitive-Pusa 991). Roots of As III treated plants accumulated significantly higher total As than As V supplemented plants, more in Pusa 991 than Pusa 2002, which corresponded to proportionately decreased plant growth, root to biomass ratio, and oxidative burst. Although Si nutrition and AM inoculations improved plant growth by significantly reducing As uptake and the resultant oxidative burst, AM was relatively more efficient in upregulating enzymatic and non-enzymatic antioxidant defense responses as well as ascorbate-glutathione pathway when compared with Si. Pusa 2002 was more receptive to Si nourishment due to its ability to establish more efficient mycorrhizal symbiosis, which led to higher Si uptake and lower As concentrations. Moreover, +Si+AM bestowed better metalloid resistance by further reducing ROS and strengthening antioxidants. Results demonstrated that the genotype with more efficient AM symbiosis in As-contaminated soils could accrue higher benefits of Si fertilization in terms of metalloid tolerance in pigeonpea.
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Affiliation(s)
- Neera Garg
- Department of Botany, Panjab University, Chandigarh, 160014, India.
| | - Lakita Kashyap
- Department of Botany, Panjab University, Chandigarh, 160014, India
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22
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Role of Phytoremediation in Reducing Cadmium Toxicity in Soil and Water. J Toxicol 2018; 2018:4864365. [PMID: 30425738 PMCID: PMC6218723 DOI: 10.1155/2018/4864365] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 09/24/2018] [Indexed: 12/05/2022] Open
Abstract
Heavy metals are a noxious form of pollutants present in soil and water. A new plant-based solar energy driven technology, phytoremediation, emerges as eco-friendly and cost-effective approach to remove heavy metal from various media with the help of hyperaccumulating plant species. This review paper aims to provide information on phytoremediation and its mechanisms for heavy metal removal especially to focus on Cadmium (Cd) metal and highlights the role of various hyperaccumulating plants for Cd metal remediation in soil and water. It complies various field case studies which play the important role in understanding the Cd removal through various plants. Additionally, it pinpoints several sources and the effects of Cd and other technologies used for Cd remediation. This paper provides the recent development in mechanisms of Cd hyperaccumulation by different plants, in order to motivate further research in this field.
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23
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Pavlů J, Novák J, Koukalová V, Luklová M, Brzobohatý B, Černý M. Cytokinin at the Crossroads of Abiotic Stress Signalling Pathways. Int J Mol Sci 2018; 19:ijms19082450. [PMID: 30126242 PMCID: PMC6121657 DOI: 10.3390/ijms19082450] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 08/14/2018] [Accepted: 08/17/2018] [Indexed: 01/13/2023] Open
Abstract
Cytokinin is a multifaceted plant hormone that plays major roles not only in diverse plant growth and development processes, but also stress responses. We summarize knowledge of the roles of its metabolism, transport, and signalling in responses to changes in levels of both macronutrients (nitrogen, phosphorus, potassium, sulphur) and micronutrients (boron, iron, silicon, selenium). We comment on cytokinin's effects on plants' xenobiotic resistance, and its interactions with light, temperature, drought, and salinity signals. Further, we have compiled a list of abiotic stress-related genes and demonstrate that their expression patterns overlap with those of cytokinin metabolism and signalling genes.
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Affiliation(s)
- Jaroslav Pavlů
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- CEITEC-Central European Institute of Technology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Jan Novák
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Vladěna Koukalová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Markéta Luklová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- CEITEC-Central European Institute of Technology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
| | - Břetislav Brzobohatý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- CEITEC-Central European Institute of Technology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- Institute of Biophysics AS CR, 612 00 Brno, Czech Republic.
| | - Martin Černý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
- Phytophthora Research Centre, Faculty of AgriSciences, Mendel University in Brno, 613 00 Brno, Czech Republic.
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