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Rombel-Bryzek A, Bojarski B, Świsłowski P, Jakubiak M, Boliukh I, Rajfur M. The effects of cadmium on selected oxidative stress parameters and the content of photosynthetic pigments in cucumber Cucumis sativus L. J Trace Elem Med Biol 2024; 84:127463. [PMID: 38657336 DOI: 10.1016/j.jtemb.2024.127463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/16/2024] [Accepted: 04/19/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND Environmental pollution by cadmium (Cd) is currently a common problem in many countries, especially in highly industrialised areas. Cd present in the soil can be absorbed by plants through the root system. AIM The aim of the present study was to investigate the effects of cadmium on the metabolic activity of cucumber plants (Cucumis sativus L.) and the accumulation and distribution of Cd in the organs of the plants. METHODS Cucumber seeds (3 g) were exposed to 0.76, 1.58 or 4.17 mg Cd/L (applied as CdCl2 solutions). The activity of selected antioxidant enzymes - glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) and catalase (CAT), lipid peroxidation and the content of photosynthetic pigments were determined in 6-week-old cucumber plants. In addition, intake of Cd has been determined by flame atomic absorption spectrometry (F-AAS). RESULTS The results show that the applied cadmium concentrations affected the activity of antioxidant enzymes. An increase in CAT activity and a decrease in SOD activity were observed in all cucumber organs analysed. GSH-Px activity increased in the roots and stems. Surprisingly, GSH-Px activity decreased in the leaves. The level of lipid peroxidation was usually unchanged (the only one statistically significant change was a decrease in the concentration of malondialdehyde in the leaves which was observed after exposure to the highest Cd concentration). The applied Cd concentrations had no effect on the content of photosynthetic pigments. The highest cadmium content was found in the roots of cucumber plants. Cd tends to accumulate in the roots and a small amount was translocated to the stems and leaves, which was confirmed with the translocation factor (TF). CONCLUSIONS The results indicate that the range of cadmium concentrations used, corresponding to the level of environmental pollution recorded in Europe, effectively activates the antioxidant enzyme system, without intensifying lipid peroxidation or reducing the content of photosynthetic pigments.
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Affiliation(s)
- Agnieszka Rombel-Bryzek
- Department of Clinical Biochemistry and Laboratory Diagnostics, Institute of Medical Sciences, University of Opole, Oleska 48, Opole 45-052, Poland.
| | - Bartosz Bojarski
- Department of Animal Physiology, Institute of Biology, Pomeranian University in Słupsk, Arciszewskiego 22b, Słupsk 76-200, Poland
| | - Paweł Świsłowski
- Institute of Biology, University of Opole, Oleska 22, Opole 45-052, Poland
| | - Mateusz Jakubiak
- Department of Environmental Management and Protection, Faculty of Mining Surveying and Environmental Engineering, AGH University of Science and Technology, Mickiewicza 30, Kraków 30-059, Poland
| | - Iryna Boliukh
- Department of Clinical Biochemistry and Laboratory Diagnostics, Institute of Medical Sciences, University of Opole, Oleska 48, Opole 45-052, Poland
| | - Małgorzata Rajfur
- Institute of Biology, University of Opole, Oleska 22, Opole 45-052, Poland
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Carvalho MEA, Agathokleous E, Nogueira ML, Brunetto G, Brown PH, Azevedo RA. Neutral-to-positive cadmium effects on germination and seedling vigor, with and without seed priming. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130813. [PMID: 36706487 DOI: 10.1016/j.jhazmat.2023.130813] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/03/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
This review gathered and analyzed data about (i) the Cd-induced impacts on seed germination and seedling vigor, and (ii) the use of different priming agents to mitigate Cd-induced impacts on the early plant development. Critical evaluation of the obtained data revealed intriguing results. First, seeds of diverse species can endure exposures to Cd. Such endurance is exhibited as maintenance of or even improvement in the seed germination and vigor (up to 15% and 70%, respectively). Second, the main factors influencing seed tolerance to Cd toxicity are related to temporal variations in anatomical, physiological, and/or biochemical features. Third, Cd can trigger diverse transgenerational effects on plants by shaping seed endophytes, by modulating seed provisioning with resources and regulatory elements, and/or by altering seed (epi)genomics. Fourth, different chemical, biological and physical priming agents can mitigate Cd-induced impacts on seeds, sometimes enhancing their performance over the control (reference) values. Overall, this review shows that the impacts of Cd on seed germination and vigor encompass not only negative outcomes but also neutral and positive ones, depending upon the Cd dose, media properties, plant species and genotypes, plant developmental stage and organ, and management approaches. Increasing our understanding of plant tolerance mechanisms against the growing background Cd pollution is relevant to support breeding programs, agricultural practices, and health-environmental policies.
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Affiliation(s)
- Marcia E A Carvalho
- Department of Genetics, Luiz de Queiroz College of Agriculture/ University of São Paulo, Avenida Pádua Dias, 11, Piracicaba, SP 13418-900, Brazil
| | - Evgenios Agathokleous
- School of Applied Meteorology, Nanjing University of Information Science & Technology, Nanjing 210044, China
| | - Marina L Nogueira
- Department of Genetics, Luiz de Queiroz College of Agriculture/ University of São Paulo, Avenida Pádua Dias, 11, Piracicaba, SP 13418-900, Brazil
| | - Gustavo Brunetto
- Soil Science Department, Federal University of Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Patrick H Brown
- Department of Plant Sciences, University of California-Davis, Davis, CA 95616, USA
| | - Ricardo A Azevedo
- Department of Genetics, Luiz de Queiroz College of Agriculture/ University of São Paulo, Avenida Pádua Dias, 11, Piracicaba, SP 13418-900, Brazil.
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Li S, Zhang K, Tian J, Chang K, Yuan S, Zhou Y, Zhao H, Zhong F. Fulvic acid mitigates cadmium toxicity-induced damage in cucumber seedlings through the coordinated interaction of antioxidant enzymes, organic acid, and amino acid. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:28780-28790. [PMID: 36401696 DOI: 10.1007/s11356-022-24258-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 11/13/2022] [Indexed: 06/16/2023]
Abstract
Fulvic acid (FA) can significantly alleviate cadmium (Cd) stress, but the specific metabolic response of FA to Cd toxicity is still not clarified. In the present study, we used untargeted metabolomic [gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS)] analysis to profile cucumber metabolism in response to Cd stress after spray application of FA. Our results showed that 331 differentially enriched metabolites (DEMs) were identified in leaf materials. These DEMs were enriched in 21 shared pathways in comparative groups of "Cd treatment vs. the control treatment" and "FA + Cd treatment vs. the Cd treatment." Specifically, treatment with FA significantly enhanced the organic acid content (citric acid, isocitric acid, 2-oxoglutaric acid, fumaric acid, and malic acid), which would contribute to provide sufficient substrates for the tricarboxylic acid (TCA) cycle and amino acid biosynthesis, thereby ensuring the normal production of energy and amino acid. At the same time, FA significantly increased the amino acid content (aspartate, citrulline, histidine, leucine, and phenylalanine). The accumulation of organic acid and amino acid can act as chelating agents for heavy metal ions and as scavengers of reactive oxygen species (ROS), thereby reducing intracellular oxidative damage. Furthermore, the application of FA improves antioxidant enzymes and accelerates ROS clearance. The improved contents of organic acid and amino acid, and the increased activity of antioxidant enzymes both played a central role in the reduction of malondialdehyde (MDA, 14.08%), hydrogen peroxide (H2O2, 61.70%) contents, and superoxide anion radical (O2-, 30.41%) production rate in plants under Cd stress. Taken together, the present study demonstrates the effects of FA on the antioxidant capacity and carbohydrate and amino acid metabolism of cucumber seedlings exposed to Cd stress, which provides comprehensive insights into the regulation of plants' response to Cd toxicity with FA was applied in cucumber.
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Affiliation(s)
- Shuhao Li
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
- Fuzhou Intelligent Agriculture (Seed) Industry Technology Innovation Center, Fuzhou, 350002, People's Republic of China
| | - Kun Zhang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
- Fuzhou Intelligent Agriculture (Seed) Industry Technology Innovation Center, Fuzhou, 350002, People's Republic of China
| | - Jun Tian
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
- Fuzhou Intelligent Agriculture (Seed) Industry Technology Innovation Center, Fuzhou, 350002, People's Republic of China
| | - Kaizhen Chang
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
- Fuzhou Intelligent Agriculture (Seed) Industry Technology Innovation Center, Fuzhou, 350002, People's Republic of China
| | - Song Yuan
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
- Fuzhou Intelligent Agriculture (Seed) Industry Technology Innovation Center, Fuzhou, 350002, People's Republic of China
| | - Yuqi Zhou
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
- Fuzhou Intelligent Agriculture (Seed) Industry Technology Innovation Center, Fuzhou, 350002, People's Republic of China
| | - Huanhuan Zhao
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China
- Fuzhou Intelligent Agriculture (Seed) Industry Technology Innovation Center, Fuzhou, 350002, People's Republic of China
| | - Fenglin Zhong
- College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou, 350002, People's Republic of China.
- Fuzhou Intelligent Agriculture (Seed) Industry Technology Innovation Center, Fuzhou, 350002, People's Republic of China.
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Zhang QC, Wang J, Wang JG. Use of plant growth regulators to reduce 2-methyl-4-chlorophenoxy acetic acid-Na (MPCA-Na) damage in cotton (Gossypium hirsutum). BMC PLANT BIOLOGY 2022; 22:533. [PMID: 36380296 PMCID: PMC9667669 DOI: 10.1186/s12870-022-03917-x] [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: 06/20/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND 2-methyl-4-chlorophenoxy acetic acid-Na (MPCA-Na) is a phenoxy carboxylic acid selective hormone herbicide that is widely used in the crop fields. However, drift of MPCA-Na during application is highly damaging to cotton (Gossypium hirsutum) and other crop plants. This study was carried out from 2019 to 2020 to determine the effects of different concentrations of MPCA-Na on physiological and metabolic activities besides growth and yield of cotton plants at seedling, budding, flowering and boll stages. Moreover, we evaluated the different combinations of 24-epibrassinolide, gibberellin (GA3), phthalanilic acid and seaweed fertilizer to ameliorate herbicide damage. RESULTS 2-methyl-4-chlorophenoxy acetic acid-Na (MPCA-Na) exposure caused a decrease in the chlorophyll content, and an increase in the soluble protein content, Malondialdehyde (MDA) content and protective enzyme activity. It also caused significant reductions in plant height, boll number and the single boll weight at the seedling and budding stages, but had little effects on plant height and the single boll weight at flowering and boll stage. Under the maximum recommended dose of MPCA-Na (130 g/L), the number of cotton bolls at seedling and budding stages decreased by 75.33 and 79.50%, respectively, and the single boll weight decreased by 46.42 and 36.31%, respectively. Nevertheless, the number of G. hirsutum bolls and single boll weight at flowering and boll stage decreased by 48.15 and 5.38%, respectively. Application of plant growth regulators decreased the MDA content, and increased chlorophyll, soluble protein content and protective enzyme activity, and alleviated MCPA-Na toxicity. Positive effects in case of growth regulators treated plants were also observed in terms of G. hirsutum yield. Phthalanilic acid + seaweed fertilizer, 24-epibrassinolide + seaweed fertilizer, and GA3 + seaweed fertilizer should be used at the seedling, budding, and flowering and boll stages, respectively. CONCLUSIONS The results of current study suggest that certain plant growth regulators could be used to alleviate MPCA-Na damage and maintain G. hirsutum yield. When the cotton exposed to MCPA-Na at the seedling stage, it should be treated with phthalanilic acid + seaweed fertilizer, while plants exposed at the budding stage should be treated with 24-epibrassinolide + seaweed fertilizer, and those exposed at the flowering and boll stages should be treated with GA3 + seaweed fertilizer to mitigate stress.
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Affiliation(s)
- Quan-Cheng Zhang
- College of Agriculture, Shihezi University, Shihezi, 832003, China
| | - Jing Wang
- College of Agriculture, Shihezi University, Shihezi, 832003, China
| | - Jun-Gang Wang
- College of Agriculture, Shihezi University, Shihezi, 832003, China.
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Gan Q, Luan M, Hu M, Liu Z, Zhang Z. Functional study of CYP90A1 and ALDH3F1 gene obtained by transcriptome sequencing analysis of Brassica napus seedlings treated with brassinolide. FRONTIERS IN PLANT SCIENCE 2022; 13:1040511. [PMID: 36407633 PMCID: PMC9669335 DOI: 10.3389/fpls.2022.1040511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Sclerotinia disease and weeds of Brassica napus greatly reduce crop yields. However, brassinolides can improve the resistance of plants to sclerotinia diseases and herbicides. In this study, we investigated the effects of brassinolide on the occurrence, physiological indices, yield, and gene expression of Fanming No. 1 seeds under sclerotinia and glufosinate stress. The results showed that soaking of the seeds in 0.015% brassinolide for 6 h reduced the incidence of sclerotinia by 10%. Additionally, in response to glufosinate stress at the seedling stage, the enzyme activities of catalase and superoxide dismutase increased by 9.6 and 19.0 U/gFW/min, respectively, and the soluble sugar content increased by 9.4 mg/g, increasing the stress resistance of plants and yield by 2.4%. LHCB1, fabF, psbW, CYP90A1, ALDH3F1, ACOX1, petF, and ACSL were screened by transcriptome analysis. ALDH3F1 and CYP90A1 were identified as key genes. Following glufosinate treatment, transgenic plants overexpressing ALDH3F1 and CYP90A1 were found to be resistant to glufosinate, and the expression levels of the ALDH3F1 and CYP90A1 were 1.03-2.37-fold as high as those in the control. The expression level of ATG3, which is an antibacterial gene related to sclerotinia disease, in transgenic plants was 2.40-2.37-fold as high as that in the control. Our results indicate that these two key genes promote plant resistance to sclerotinia and glufosinate. Our study provides a foundation for further studies on the molecular mechanisms of rapeseed resistance breeding and selection of new resistant varieties.
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Affiliation(s)
- Qingqin Gan
- College of Agriculture, Hunan Agricultural University, Changsha, China
| | - Mingbao Luan
- Institute of Bast Fiber Crops, Chinese Academy of Agricultural Sciences/Key Laboratory of Stem-Fiber Biomass and Engineering Microbiology, Ministry of Agriculture, Changsha, China
| | - Maolong Hu
- Institute of Industrial Crops, Jiangsu Academy of Agricultural Science, Nanjing, China
| | - Zhongsong Liu
- College of Agriculture, Hunan Agricultural University, Changsha, China
| | - Zhenqian Zhang
- College of Agriculture, Hunan Agricultural University, Changsha, China
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Yuan J, Liu R, Sheng S, Fu H, Wang X. Integrated metabolomic and transcriptomic profiling revealed coping mechanisms of the edible and medicinal homologous plant Plantago asiatica L. cadmium resistance. Open Life Sci 2022. [DOI: 10.1515/biol-2022-0501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Abstract
Rapidly increasing cadmium (Cd) pollution led to the increase in contamination in farmland. The study explained the Cd resistance mechanisms of Plantago asiatica L. via physiological, metabolomic, and transcriptomic analyses. The results showed that as soil Cd level increased, proline content declined and then increased significantly. In contrast to the H2O2 content change trend, contents of soluble protein and malondialdehyde (MDA) first decreased, then increased, and finally, declined. Leaf Cd concentration was positively related to soluble protein content and negatively to both MDA content and activities of superoxide dismutase (SOD) and catalase (CAT). Most of the top 50 differential metabolites belonged to organic acids and sugars. Besides combining metabolome and transcriptome data, in the metabolic network involving the target metabolic pathways (e.g., ascorbate and aldarate metabolism, glutathione metabolism, galactose metabolism, and glyoxylate and dicarboxylate metabolism), dehydroascorbate (DHA), regulated by l-ascorbate peroxidase (APX) and l-gulonolactone oxidase (GULO), was significantly up-regulated. This illuminated that, in P. asiatica, CAT and SOD played vital roles in Cd resistance, and soluble protein and MDA acted as the main indexes to characterize Cd damage. It also suggested that DHA functioned effectively in Cd resistance, and the function was regulated by APX and GULO.
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Affiliation(s)
- Jun Yuan
- School of Nursing, Jiangxi University of Chinese Medicine , Nanchang 330004 , China
| | - Rongpeng Liu
- School of Pharmacy, Jiangxi University of Chinese Medicine , Nanchang 330004 , China
| | - Shasha Sheng
- Research Center for Traditional Chinese Medicine Resources and Ethnic Minority Medicine, Jiangxi University of Chinese Medicine , Nanchang 330004 , China
| | - Haihui Fu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Jiangxi Agricultural University , Nanchang 330045 , China
| | - Xiaoyun Wang
- Research Center for Traditional Chinese Medicine Resources and Ethnic Minority Medicine, Jiangxi University of Chinese Medicine , Nanchang 330004 , China
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Altaf MA, Hao Y, He C, Mumtaz MA, Shu H, Fu H, Wang Z. Physiological and Biochemical Responses of Pepper ( Capsicum annuum L.) Seedlings to Nickel Toxicity. FRONTIERS IN PLANT SCIENCE 2022; 13:950392. [PMID: 35923881 PMCID: PMC9340659 DOI: 10.3389/fpls.2022.950392] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 06/20/2022] [Indexed: 05/23/2023]
Abstract
Globally, heavy metal pollution of soil has remained a problem for food security and human health, having a significant impact on crop productivity. In agricultural environments, nickel (Ni) is becoming a hazardous element. The present study was performed to characterize the toxicity symptoms of Ni in pepper seedlings exposed to different concentrations of Ni. Four-week-old pepper seedlings were grown under hydroponic conditions using seven Ni concentrations (0, 10, 20, 30, 50, 75, and 100 mg L-1 NiCl2. 6H2O). The Ni toxicity showed symptoms, such as chlorosis of young leaves. Excess Ni reduced growth and biomass production, root morphology, gas exchange elements, pigment molecules, and photosystem function. The growth tolerance index (GTI) was reduced by 88-, 75-, 60-, 45-, 30-, and 19% in plants against 10, 20, 30, 50, 75, and 100 mg L-1 Ni, respectively. Higher Ni concentrations enhanced antioxidant enzyme activity, ROS accumulation, membrane integrity [malondialdehyde (MDA) and electrolyte leakage (EL)], and metabolites (proline, soluble sugars, total phenols, and flavonoids) in pepper leaves. Furthermore, increased Ni supply enhanced the Ni content in pepper's leaves and roots, but declined nitrogen (N), potassium (K), and phosphorus (P) levels dramatically. The translocation of Ni from root to shoot increased from 0.339 to 0.715 after being treated with 10-100 mg L-1 Ni. The uptake of Ni in roots was reported to be higher than that in shoots. Generally, all Ni levels had a detrimental impact on enzyme activity and led to cell death in pepper seedlings. However, the present investigation revealed that Ni ≥ 30 mg L-1 lead to a deleterious impact on pepper seedlings. In the future, research is needed to further explore the mechanism and gene expression involved in cell death caused by Ni toxicity in pepper plants.
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Affiliation(s)
- Muhammad Ahsan Altaf
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
- Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya, China
| | - Yuanyuan Hao
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Chengyao He
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Muhammad Ali Mumtaz
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Huangying Shu
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Huizhen Fu
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
| | - Zhiwei Wang
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou, China
- Sanya Nanfan Research Institute of Hainan University, Hainan Yazhou Bay Seed Laboratory, Sanya, China
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Shi Y, Yan T, Yuan C, Li C, Rensing C, Chen Y, Xie R, Zhang T, Lian C. Comparative Physiological and Transcriptome Analysis Provide Insights into the Response of Cenococcum geophilum, an Ectomycorrhizal Fungus to Cadmium Stress. J Fungi (Basel) 2022; 8:jof8070724. [PMID: 35887479 PMCID: PMC9323960 DOI: 10.3390/jof8070724] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/01/2022] [Accepted: 07/07/2022] [Indexed: 02/07/2023] Open
Abstract
Cadmium (Cd) displays strong toxicity, high mobility, and cannot be degraded, which poses a serious threat to the environment. Cenococcum geophilum (C. geophilum) is one of the most common ectomycorrhizal fungi (ECMF) in the natural environment. In this study, three Cd sensitive and three Cd tolerant strains of C. geophilum were used to analyze the physiological and molecular responses to Cd exposure. The results showed that Cd inhibited the growth of all strains of C. geophilum but had a less toxic effect on the tolerant strains, which may be correlated to a lower content of Cd and higher activity of antioxidant enzymes in the mycelia of tolerant strains. Comparative transcriptomic analysis was used to identify differentially expressed genes (DEGs) of four selected C. geophilum strains after 2 mg/L Cd treatment. The results showed that the defense response of C. geophilum strain to Cd may be closely related to the differential expression of functional genes involved in cell membrane ion transport, macromolecular compound metabolism, and redox pathways. The results were further confirmed by RT-qPCR analysis. Collectively, this study provides useful information for elucidation of the Cd tolerance mechanism of ECMF.
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Affiliation(s)
- Yuyu Shi
- International Joint Laboratory of Forest Symbiology, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.S.); (T.Y.); (C.Y.)
| | - Tianyi Yan
- International Joint Laboratory of Forest Symbiology, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.S.); (T.Y.); (C.Y.)
| | - Chao Yuan
- International Joint Laboratory of Forest Symbiology, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.S.); (T.Y.); (C.Y.)
| | - Chaofeng Li
- Asian Research Center for Bioresource and Environmental Sciences, School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo, Tokyo 188-0002, Japan; (C.L.); (C.L.)
| | - Christopher Rensing
- College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
| | - Yahua Chen
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China;
| | - Rongzhang Xie
- Forestry Bureau, Sanyuan District, Sanming 365000, China;
| | - Taoxiang Zhang
- International Joint Laboratory of Forest Symbiology, College of Forestry, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (Y.S.); (T.Y.); (C.Y.)
- Correspondence: ; Tel.: +86-180-0691-1945
| | - Chunlan Lian
- Asian Research Center for Bioresource and Environmental Sciences, School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Midori-cho, Nishitokyo, Tokyo 188-0002, Japan; (C.L.); (C.L.)
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Sardar R, Ahmed S, Akbar M, Yasin NA, Li G. Alleviation of cadmium phytotoxicity in triacontanol treated Coriandrum sativum L. by modulation of physiochemical attributes, oxidative stress biomarkers and antioxidative system. CHEMOSPHERE 2022; 295:133924. [PMID: 35149022 DOI: 10.1016/j.chemosphere.2022.133924] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/03/2022] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
Cadmium (Cd) is a hazardous metal that has a significant risk of transfer from soil to edible parts of food crops including shoots and seeds. Reduction of Cd accumulation is required to lower the risk of Cd exposure in humans and animals feeding on metal contaminated parts of such plants. Coriandrum sativum L. (coriander) exposed to Cd showed stress symptoms such as stunted growth, reduced photosynthetic activity and synthesis of chlorophyll pigments. Growth inhibition in Cd-treated plants was attributed to induction of oxidative stress as demonstrated by higher level of stress biomarkers such as electrolyte leakage, lipid peroxidation and hydrogen peroxide. Primary objective of the current study was to observe the ameliorative role of triacontanol (Tria) in Cd-stressed coriander seedlings. For this purpose, coriander seeds were primed with Tria concentrations of 5, 10, and 20 μmol L-1. Seedlings developed from Tria treated seeds exhibited reduced loss of photosynthetic pigments; mitigated oxidative stress caused by Cd, through improved efficacy of antioxidant machinery comprising superoxide dismutase (SOD), peroxidase (POX), and catalase (CAT) enzymes besides non-enzymatic antioxidants including proline, phenolics and flavonoids. Triacontanol treated seedlings showed enhanced yield attributes suggesting that exogenous Tria could be employed to improve plant tolerance to Cd stress.
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Affiliation(s)
- Rehana Sardar
- Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Shakil Ahmed
- Institute of Botany, University of the Punjab, Lahore, Pakistan
| | - Muhammad Akbar
- Department of Botany, University of Gujrat, Gujrat, 50700, Pakistan
| | - Nasim Ahmad Yasin
- SSG, RO-II Department, University of the Punjab, Lahore, Pakistan; Guangdong Key Laboratory for New Technology Research of Vegetables/Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China.
| | - Guihua Li
- Guangdong Key Laboratory for New Technology Research of Vegetables/Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China.
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Mo F, Li H, Li Y, Ma C, Wang M, Li Z, Deng N, Zhang C, Xing B, Xu J, Li G, Wang L, Zheng Y, Yang Y. Exploration of defense and tolerance mechanisms in dominant species of mining area - Trifolium pratense L. upon exposure to silver. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 811:151380. [PMID: 34780825 DOI: 10.1016/j.scitotenv.2021.151380] [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: 09/06/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 06/13/2023]
Abstract
This present study investigated detoxification mechanisms of leguminous forage Trifolium pratense L. (red clover) seedlings upon exposure to Ag ions (Ag+) on an atomic level. Depressed plant growth (maximum inhibition rate: 46.57%) and significantly altered antioxidase/antioxidant substances levels (maximum inhibition rate: 65.45%/55.41%) revealed that the physiological metabolism was disturbed. Notable lesions were observed in both leaf and root cells at 588 μM Ag+ treatment. All differentially expressed genes (DEGs) were remarkably mapped to biological metabolism related pathways. Red clover seedlings were speculated to initially transform and immobilize Ag+ in the culture medium, then transporting and fixing them inside the cell, mainly as unreduced Ag+ bound to oxygen-, nitrogen-, sulfur-, chloride-containing biological molecules. A portion of Ag+ was reduced to Ag0 and aggregated to form crystalline argentiferous nanoparticles. Effective reducing agents such as alcohols, carboxylic acid, and etc, which are capable of coordinating heavy metals to reduce and stabilize them, were assumed to play a role in Ag+ reduction. The research results are of great value to understand the defense and tolerance mechanisms of red clover to Ag+ and explore the main existing forms of Ag+ in vivo and in vitro, which could indicate contamination condition in regional ecological environment such as mining area and its potential effects.
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Affiliation(s)
- Fan Mo
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Haibo Li
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China.
| | - Yinghua Li
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China.
| | - Chuanxin Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| | - Mingshuai Wang
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Zhe Li
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Ningcan Deng
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Chenxi Zhang
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States.
| | - Jianing Xu
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Geng Li
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Lixin Wang
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
| | - Yaqin Zheng
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China.
| | - Yue Yang
- School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
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Sun W, Yang B, Zhu Y, Wang H, Qin G, Yang H. Ectomycorrhizal fungi enhance the tolerance of phytotoxicity and cadmium accumulation in oak (Quercus acutissima Carruth.) seedlings: modulation of growth properties and the antioxidant defense responses. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:6526-6537. [PMID: 34455564 DOI: 10.1007/s11356-021-16169-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 08/22/2021] [Indexed: 06/13/2023]
Abstract
Ectomycorrhizal fungi (EMF), which form symbiotic ectomycorrhiza with tree roots, mediate heavy metal tolerance of host plants. To investigate the roles of EMF in the growth, modulation of oxidative stress, and cadmium (Cd) accumulation and translocation in Quercus acutissima seedlings, ectomycorrhizal seedlings inoculated with Suillus luteus were treated with different Cd concentrations (0.1, and 5 mg kg-1) for 14 days. EMF accelerated seedling growth and Cd accumulation in roots under the highest Cd concentration of 5 mg kg-1. Catalase (CAT), ascorbate peroxidase (APX), and glutathione reductase (GR) activities increased in the leaves of ectomycorrhizal seedlings under the highest Cd concentration. Superoxide dismutase (SOD) trended to increase under both Cd concentrations. Although reduced glutathione (GSH) increased after inoculation of EMF under both Cd concentrations, the release of malondialdehyde increased in the leaves and roots under the highest Cd concentration, indicating that the defense role of EMF in Q. acutissima depends on the Cd concentration. These results indicate that EMF mitigate Cd stress by promoting plant growth and nutrient uptake while modulating the antioxidant system to reduce oxidative stress.
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Affiliation(s)
- Wen Sun
- School of Water Conservancy and Environment, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong Province, China
| | - Baoshan Yang
- School of Water Conservancy and Environment, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong Province, China
| | - Yidan Zhu
- School of Water Conservancy and Environment, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong Province, China
| | - Hui Wang
- School of Water Conservancy and Environment, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong Province, China.
| | - Guanghua Qin
- Shandong Academy of Forestry, No. 42, East Road of Wenhua, Jinan, 250014, Shandong Province, China.
| | - Hanqi Yang
- College of Art and Sciences, The Ohio State University, Columbus, OH, 43210, USA
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Priming Strategies for Benefiting Plant Performance under Toxic Trace Metal Exposure. PLANTS 2021; 10:plants10040623. [PMID: 33805922 PMCID: PMC8064369 DOI: 10.3390/plants10040623] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/19/2021] [Accepted: 03/22/2021] [Indexed: 11/25/2022]
Abstract
Combating environmental stress related to the presence of toxic elements is one of the most important challenges in plant production. The majority of plant species suffer from developmental abnormalities caused by an exposure to toxic concentrations of metals and metalloids, mainly Al, As, Cd, Cu, Hg, Ni, Pb, and Zn. However, defense mechanisms are activated with diverse intensity and efficiency. Enhancement of defense potential can be achieved though exogenously applied treatments, resulting in a higher capability of surviving and developing under stress and become, at least temporarily, tolerant to stress factors. In this review, I present several already recognized as well as novel methods of the priming process called priming, resulting in the so-called “primed state” of the plant organism. Primed plants have a higher capability of surviving and developing under stress, and become, at least temporarily, tolerant to stress factors. In this review, several already recognized as well as novel methods of priming plants towards tolerance to metallic stress are discussed, with attention paid to similarities in priming mechanisms activated by the most versatile priming agents. This knowledge could contribute to the development of priming mixtures to counteract negative effects of multi-metallic and multi-abiotic stresses. Presentation of mechanisms is complemented with information on the genes regulated by priming towards metallic stress tolerance. Novel compounds and techniques that can be exploited in priming experiments are also summarized.
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