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Hu Y, Wang H, Jia H, Peng M, Zhu T, Liu Y, Wei J. Effects of Cd treatment on morphology, chlorophyll content and antioxidant enzyme activity of Elymus nutans Griseb., a native plant in Qinghai-Tibet Plateau. PLANT SIGNALING & BEHAVIOR 2023; 18:2187561. [PMID: 36938824 PMCID: PMC10038041 DOI: 10.1080/15592324.2023.2187561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
Cd pollution is a global environmental problem. However, the response mechanism of the alpine plant Pelagia under Cd stress remains unclear. Therefore, in this study, a native plant(Elymus nutans Griseb.) of the Qinghai-Tibet Plateau was used as the material to quantify plant height, leaf number, length of leaf, crown width, root number, biomass, Dry weight malondialdehyde (MDA), free proline, superoxide dismutase (SOD), ascorbate enzyme (APX), catalase (CAT) and chlorophyll contents under different Cd concentrations. The results showed that the growth of Elymus nutans Griseb. was a phenomenon of "low concentration promotes growth, high concentration inhibited growth" under Cd treatment. It meant that 10 mg·L-1 Cd promoted the growth of leaf number, plant height, crown width and tiller number, while 40 mg·L-1 Cd inhibited the growth of root number and biomass of Elymus nutans Griseb. compare with the control. The MDA content, free proline content, SOD activity, APX activity and CAT activity of Elymus nutans Griseb. was increased with the increase of Cd treatment concentration to resist the oxidative damage caused by Cd to the body. At the same time, the accumulation of chlorophyll A, chlorophyll B and chlorophyll AB was decreased with the increase of Cd stress concentration. In addition, the carotenoid content did not change much between the control group and the treatment group, indicating that Cd treatment had little effect on it. The results could provide a reference for the mechanism of heavy metal resistance and the selection and improvement of Cd -resistant varieties of Elymus nutans Griseb.
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Affiliation(s)
- Ying Hu
- College of Life Sciences, Qinghai Normal University, Xi’ Ning, China
| | - Huichun Wang
- College of Life Sciences, Qinghai Normal University, Xi’ Ning, China
- Qinghai south of Qilian Mountain Forest Ecosystem Observation and Research Station, Huzhu
- Key Laboratory of Medicinal Animal and Plant Resources on the Qinghai–Tibet Plateau, Qinghai Normal University, Xi’ Ning, China
| | - Huiping Jia
- College of Life Sciences, Qinghai Normal University, Xi’ Ning, China
| | - Maodeji Peng
- College of Life Sciences, Qinghai Normal University, Xi’ Ning, China
| | - Tiantian Zhu
- College of Life Sciences, Qinghai Normal University, Xi’ Ning, China
| | - Yangyang Liu
- College of Life Sciences, Qinghai Normal University, Xi’ Ning, China
| | - Jingjing Wei
- College of Geographical Sciences, Qinghai Normal University, Xi’ Ning, China
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Zhang M, Chang MH, Li H, Shu YJ, Bai Y, Gao JY, Zhu JX, Dong XY, Guo DL, Guo CH. MsYSL6, A Metal Transporter Gene of Alfalfa, Increases Iron Accumulation and Benefits Cadmium Resistance. PLANTS (BASEL, SWITZERLAND) 2023; 12:3485. [PMID: 37836225 PMCID: PMC10575464 DOI: 10.3390/plants12193485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/01/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023]
Abstract
Iron (Fe) is necessary for plant growth and development. The mechanism of uptake and translocation in Cadmium (Cd) is similar to iron, which shares iron transporters. Yellow stripe-like transporter (YSL) plays a pivotal role in transporting iron and other metal ions in plants. In this study, MsYSL6 and its promoter were cloned from leguminous forage alfalfa. The transient expression of MsYSL6-GFP indicated that MsYSL6 was localized to the plasma membrane and cytoplasm. The expression of MsYSL6 was induced in alfalfa by iron deficiency and Cd stress, which was further proved by GUS activity driven by the MsYSL6 promoter. To further identify the function of MsYSL6, it was heterologously overexpressed in tobacco. MsYSL6-overexpressed tobacco showed better growth and less oxidative damage than WT under Cd stress. MsYSL6 overexpression elevated Fe and Cd contents and induced a relatively high Fe translocation rate in tobacco under Cd stress. The results suggest that MsYSL6 might have a dual function in the absorption of Fe and Cd, playing a role in the competitive absorption between Fe and Cd. MsYSL6 might be a regulatory factor in plants to counter Cd stress. This study provides a novel gene for application in heavy metal enrichment or phytoremediation and new insights into plant tolerance to toxic metals.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Dong-Lin Guo
- Heilongjiang Provincial Key Laboratory of Molecular Cell Genetics and Genetic Breeding, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China; (M.Z.); (M.-H.C.); (H.L.); (Y.-J.S.); (Y.B.); (J.-Y.G.); (J.-X.Z.); (X.-Y.D.)
| | - Chang-Hong Guo
- Heilongjiang Provincial Key Laboratory of Molecular Cell Genetics and Genetic Breeding, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China; (M.Z.); (M.-H.C.); (H.L.); (Y.-J.S.); (Y.B.); (J.-Y.G.); (J.-X.Z.); (X.-Y.D.)
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Sperdouli I. Heavy Metal Toxicity Effects on Plants. TOXICS 2022; 10:715. [PMID: 36548548 PMCID: PMC9788363 DOI: 10.3390/toxics10120715] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 11/19/2022] [Indexed: 06/15/2023]
Abstract
Although heavy metals are naturally present in the soil, geologic and anthropogenic activities increase the concentration of these elements to amounts that are harmful to plants [...].
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Affiliation(s)
- Ilektra Sperdouli
- Institute of Plant Breeding and Genetic Resources, HAO-Dimitra, Thermi, 570 01 Thessaloniki, Greece
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Wang Y, Mao C, Shi Y, Fan X, Sun L, Zhuang Y. Transcriptome analysis of the response of Hypomyces chrysospermus to cadmium stress. Front Microbiol 2022; 13:990693. [PMID: 36212811 PMCID: PMC9539689 DOI: 10.3389/fmicb.2022.990693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Accepted: 09/05/2022] [Indexed: 11/13/2022] Open
Abstract
Hypomyces chrysospermus is a fungal parasite that grows on Boletus species. One isolated strain of H. chrysospermus from B. griseus was obtained and proved of strong ability to tolerate and absorb cadmium (Cd) by previous research. However, the molecular mechanisms of underlying the resistance of H. chrysospermus to Cd stress have not been investigated. This study aimed to assess the effect of Cd stress on the global transcriptional regulation of H. chrysospermus. A total of 1,839 differentially expressed genes (DEGs) were identified under 120 mg/l Cd stress. Gene ontology (GO) enrichment analysis revealed that large amounts of DEGs were associated with cell membrane components, oxidoreductase activity, and transport activity. KEGG enrichment analysis revealed that these DEGs were mainly involved in the translation, amino acid metabolism, transport and catabolism, carbohydrate metabolism, and folding/sorting and degradation pathways under Cd stress. Moreover, the expression of DEGs encoding transporter proteins, antioxidant enzymes, nonenzymatic antioxidant proteins, detoxification enzymes, and transcription factors was associated with the Cd stress response. These results provide insights into the molecular mechanisms underlying Cd tolerance in H. chrysospermus and serve as a valuable reference for further studies on the detoxification mechanisms of heavy metal-tolerant fungi. Our findings may also facilitate the development of new and improved fungal bioremediation strategies.
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Hossain MS, Abdelrahman M, Tran CD, Nguyen KH, Chu HD, Watanabe Y, Fujita M, Tran LSP. Modulation of osmoprotection and antioxidant defense by exogenously applied acetate enhances cadmium stress tolerance in lentil seedlings. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 308:119687. [PMID: 35777591 DOI: 10.1016/j.envpol.2022.119687] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/26/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
To examine the potential role of acetate in conferring cadmium (Cd) stress tolerance in lentil (Lens culinaris), several phenotypical and physio-biochemical properties have been examined in Cd-stressed lentil seedlings following acetate applications. Acetate treatment inhibited the translocation of Cd from roots to shoots, which resulted in a minimal reduction in photosynthetic pigment contents. Additionally, acetate-treated lentil showed higher shoot (1.1 and 11.72%) and root (4.98 and 30.64%) dry weights compared with acetate-non-treated plants under low-Cd and high-Cd concentrations, respectively. Concurrently, acetate treatments increase osmoprotection under low-Cd stress through proline accumulation (24.69%), as well as enhancement of antioxidant defense by increasing ascorbic acid content (239.13%) and catalase activity (148.51%) under high-Cd stress. Acetate-induced antioxidant defense resulted in a significant diminution in hydrogen peroxide, malondialdehyde and electrolyte leakage in Cd-stressed lentil seedlings. Our results indicated that acetate application mitigated oxidative stress-induced damage by modulating antioxidant defense and osmoprotection, and reducing root-to-shoot Cd transport. These findings indicate an important contribution of acetate in mitigating the Cd toxicity during growth and development of lentil seedlings, and suggest that the exogenous applications of acetate could be an economical and new avenue for controlling heavy metal-caused damage in lentil, and potentially in many other crops.
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Affiliation(s)
- Md Shahadat Hossain
- Laboratory of Plant Stress Responses, Faculty of Agriculture, Kagawa University, Ikenobe 2393, Miki-cho, Kita gun, Kagawa, 761-0795, Japan
| | - Mostafa Abdelrahman
- Biotechnology Program, Faculty of Science, Galala University, Suze, Galala, 43511, Egypt; Botany Department, Faculty of Science, Aswan University, Aswan, 81528, Egypt
| | - Cuong Duy Tran
- Department of Genetic Engineering, Agricultural Genetics Institute, Vietnamese Academy of Agricultural Science, Pham Van Dong str., Hanoi, 100000, Viet Nam
| | - Kien Huu Nguyen
- National Key Laboratory for Plant Cell Technology, Agricultural Genetics Institute, Vietnam Academy of Agricultural Sciences, Pham Van Dong Str., Hanoi, 100000, Viet Nam
| | - Ha Duc Chu
- Faculty of Agricultural Technology, University of Engineering and Technology, Vietnam National University Hanoi, Xuan Thuy Road, Cau Giay District, Hanoi, 122300, Viet Nam
| | - Yasuko Watanabe
- Bioproductivity Informatics Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, 230-0045, Japan
| | - Masayuki Fujita
- Laboratory of Plant Stress Responses, Faculty of Agriculture, Kagawa University, Ikenobe 2393, Miki-cho, Kita gun, Kagawa, 761-0795, Japan
| | - Lam-Son Phan Tran
- Institute of Research and Development, Duy Tan University, 03 Quang Trung, Da Nang, Viet Nam; Institute of Genomics for Crop Abiotic Stress Tolerance, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA.
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Zhou M, Li Z. Recent Advances in Minimizing Cadmium Accumulation in Wheat. TOXICS 2022; 10:toxics10040187. [PMID: 35448448 PMCID: PMC9025478 DOI: 10.3390/toxics10040187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 01/14/2023]
Abstract
Cadmium (Cd), a toxic heavy metal, affects the yield and quality of crops. Wheat (Triticum aestivum L.) can accumulate high Cd content in the grain, which poses a major worldwide hazard to human health. Advances in our understanding of Cd toxicity for plants and humans, different parameters influencing Cd uptake and accumulation, as well as phytoremediation technologies to relieve Cd pollution in wheat have been made very recently. In particular, the molecular mechanisms of wheat under Cd stress have been increasingly recognized. In this review, we focus on the recently described omics and functional genes uncovering Cd stress, as well as different mitigation strategies to reduce Cd toxicity in wheat.
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Affiliation(s)
- Min Zhou
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
- Correspondence: (M.Z.); (Z.L.)
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
- Correspondence: (M.Z.); (Z.L.)
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