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Sperdouli I, Panteris E, Moustaka J, Aydın T, Bayçu G, Moustakas M. Mechanistic Insights on Salicylic Acid-Induced Enhancement of Photosystem II Function in Basil Plants under Non-Stress or Mild Drought Stress. Int J Mol Sci 2024; 25:5728. [PMID: 38891916 PMCID: PMC11171592 DOI: 10.3390/ijms25115728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 05/08/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Photosystem II (PSII) functions were investigated in basil (Ocimum basilicum L.) plants sprayed with 1 mM salicylic acid (SA) under non-stress (NS) or mild drought-stress (MiDS) conditions. Under MiDS, SA-sprayed leaves retained significantly higher (+36%) chlorophyll content compared to NS, SA-sprayed leaves. PSII efficiency in SA-sprayed leaves under NS conditions, evaluated at both low light (LL, 200 μmol photons m-2 s-1) and high light (HL, 900 μmol photons m-2 s-1), increased significantly with a parallel significant decrease in the excitation pressure at PSII (1-qL) and the excess excitation energy (EXC). This enhancement of PSII efficiency under NS conditions was induced by the mechanism of non-photochemical quenching (NPQ) that reduced singlet oxygen (1O2) production, as indicated by the reduced quantum yield of non-regulated energy loss in PSII (ΦNO). Under MiDS, the thylakoid structure of water-sprayed leaves appeared slightly dilated, and the efficiency of PSII declined, compared to NS conditions. In contrast, the thylakoid structure of SA-sprayed leaves did not change under MiDS, while PSII functionality was retained, similar to NS plants at HL. This was due to the photoprotective heat dissipation by NPQ, which was sufficient to retain the same percentage of open PSII reaction centers (qp), as in NS conditions and HL. We suggest that the redox status of the plastoquinone pool (qp) under MiDS and HL initiated the acclimation response to MiDS in SA-sprayed leaves, which retained the same electron transport rate (ETR) with control plants. Foliar spray of SA could be considered as a method to improve PSII efficiency in basil plants under NS conditions, at both LL and HL, while under MiDS and HL conditions, basil plants could retain PSII efficiency similar to control plants.
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Affiliation(s)
- Ilektra Sperdouli
- Institute of Plant Breeding and Genetic Resources, Hellenic Agricultural Organisation–Demeter (ELGO-Dimitra), 57001 Thermi, Greece;
| | - Emmanuel Panteris
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Julietta Moustaka
- Department of Food Science, Aarhus University, 8200 Aarhus, Denmark;
| | - Tuğba Aydın
- Department of Biology, Faculty of Science, Istanbul University, 34134 Istanbul, Turkey; (T.A.); (G.B.)
| | - Gülriz Bayçu
- Department of Biology, Faculty of Science, Istanbul University, 34134 Istanbul, Turkey; (T.A.); (G.B.)
| | - Michael Moustakas
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
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Li X, Zhang W, Niu D, Liu X. Effects of abiotic stress on chlorophyll metabolism. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 342:112030. [PMID: 38346561 DOI: 10.1016/j.plantsci.2024.112030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/08/2024] [Indexed: 02/22/2024]
Abstract
Chlorophyll, an essential pigment in the photosynthetic machinery of plants, plays a pivotal role in the absorption of light energy and its subsequent transfer to reaction centers. Given that the global production of chlorophyll reaches billions of tons annually, a comprehensive understanding of its biosynthetic pathways and regulatory mechanisms is important. The metabolic pathways governing chlorophyll biosynthesis and catabolism are complex, encompassing a series of interconnected reactions mediated by a spectrum of enzymes. Environmental fluctuations, particularly abiotic stressors such as drought, extreme temperature variations, and excessive light exposure, can significantly perturb these processes. Such disruptions in chlorophyll metabolism have profound implications for plant growth and development. This review delves into the core aspects of chlorophyll metabolism, encompassing both biosynthetic and degradative pathways. It elucidates key genes and enzymes instrumental in these processes and underscores the impact of abiotic stress on chlorophyll metabolism. Furthermore, the review aims to deepen the understanding of the interplay between chlorophyll metabolic dynamics and stress responses, thereby shedding light on potential regulatory mechanisms.
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Affiliation(s)
- Xu Li
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Wei Zhang
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Di Niu
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Xiaomin Liu
- State Key Laboratory of Tree Genetics and Breeding, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China.
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Fu S, Iqbal B, Li G, Alabbosh KF, Khan KA, Zhao X, Raheem A, Du D. The role of microbial partners in heavy metal metabolism in plants: a review. PLANT CELL REPORTS 2024; 43:111. [PMID: 38568247 DOI: 10.1007/s00299-024-03194-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Accepted: 03/06/2024] [Indexed: 04/05/2024]
Abstract
Heavy metal pollution threatens plant growth and development as well as ecological stability. Here, we synthesize current research on the interplay between plants and their microbial symbionts under heavy metal stress, highlighting the mechanisms employed by microbes to enhance plant tolerance and resilience. Several key strategies such as bioavailability alteration, chelation, detoxification, induced systemic tolerance, horizontal gene transfer, and methylation and demethylation, are examined, alongside the genetic and molecular basis governing these plant-microbe interactions. However, the complexity of plant-microbe interactions, coupled with our limited understanding of the associated mechanisms, presents challenges in their practical application. Thus, this review underscores the necessity of a more detailed understanding of how plants and microbes interact and the importance of using a combined approach from different scientific fields to maximize the benefits of these microbial processes. By advancing our knowledge of plant-microbe synergies in the metabolism of heavy metals, we can develop more effective bioremediation strategies to combat the contamination of soil by heavy metals.
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Affiliation(s)
- Shilin Fu
- School of Environment and Safety Engineering, School of Emergency Management, Jiangsu Province Engineering Research Centre of Green Technology and Contingency Management for Emerging Pollutants, Jiangsu University, 212013, Zhenjiang, People's Republic of China
| | - Babar Iqbal
- School of Environment and Safety Engineering, School of Emergency Management, Jiangsu Province Engineering Research Centre of Green Technology and Contingency Management for Emerging Pollutants, Jiangsu University, 212013, Zhenjiang, People's Republic of China
| | - Guanlin Li
- School of Environment and Safety Engineering, School of Emergency Management, Jiangsu Province Engineering Research Centre of Green Technology and Contingency Management for Emerging Pollutants, Jiangsu University, 212013, Zhenjiang, People's Republic of China.
- Jiangsu Collaborative Innovation Centre of Technology and Material of Water Treatment, Suzhou University of Science and Technology, 215009, Suzhou, People's Republic of China.
| | | | - Khalid Ali Khan
- Applied College, Center of Bee Research and its Products (CBRP), Unit of Bee Research and Honey Production, and Research Center for Advanced Materials Science (RCAMS), King Khalid University, 61413, Abha, Saudi Arabia
| | - Xin Zhao
- Department of Civil and Environmental Engineering, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Abdulkareem Raheem
- School of Environment and Safety Engineering, School of Emergency Management, Jiangsu Province Engineering Research Centre of Green Technology and Contingency Management for Emerging Pollutants, Jiangsu University, 212013, Zhenjiang, People's Republic of China.
| | - Daolin Du
- Jingjiang College, Institute of Environment and Ecology, School of Emergency Management, School of Environment and Safety Engineering, School of Agricultural Engineering, Jiangsu University, 212013, Zhenjiang, People's Republic of China.
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4
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Al-Huqail AA, Alghanem SMS, Alhaithloul HAS, Saleem MH, Abeed AHA. Combined exposure of PVC-microplastic and mercury chloride (HgCl 2) in sorghum (Pennisetum glaucum L.) when its seeds are primed titanium dioxide nanoparticles (TiO 2-NPs). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:7837-7852. [PMID: 38170361 DOI: 10.1007/s11356-023-31733-9] [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: 09/08/2023] [Accepted: 12/22/2023] [Indexed: 01/05/2024]
Abstract
The present work studied the impact of different levels of PVC-microplastics (PVC-MPs), namely 0 (no PVC-MPs), 2, and 4 mg L-1, along with mercury (Hg) levels of 0 (no Hg), 10, and 25 mg kg-1 in the soil, while concurrently applying titanium dioxide-nanoparticles (TiO2-NPs) at 0 (no TiO2-NPs), 50, and 100 µg mL-1 to sorghum (Pennisetum glaucum L.) plants. This study aimed to examine plant growth and biomass, photosynthetic pigments and gas exchange characteristics, oxidative stress indicators, and the response of various antioxidants (enzymatic and non-enzymatic) and their specific gene expression, proline metabolism, the AsA-GSH cycle, and cellular fractionation in the plants. The research outcomes indicated that elevated levels of PVC-MPs and Hg stress in the soil notably reduced plant growth and biomass, photosynthetic pigments, and gas exchange attributes. However, PVC-MPs and Hg stress also induced oxidative stress in the roots and shoots of the plants by increasing malondialdehyde (MDA), hydrogen peroxide (H2O2), and electrolyte leakage (EL) which also induced increased compounds of various enzymatic and non-enzymatic antioxidants and also the gene expression and sugar content. Furthermore, a significant increase in proline metabolism, the AsA-GSH cycle, and the pigmentation of cellular components was observed. Although, the application of TiO2-NPs showed a significant increase in plant growth and biomass, gas exchange characteristics, enzymatic and non-enzymatic compounds, and their gene expression and also decreased oxidative stress. In addition, the application of TiO2-NPs enhanced cellular fractionation and decreased the proline metabolism and AsA-GSH cycle in P. glaucum plants. These results open new insights for sustainable agriculture practices and hold immense promise in addressing the pressing challenges of heavy metal contamination in agricultural soils.
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Affiliation(s)
- Arwa Abdulkreem Al-Huqail
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O.Box 84428, Riyadh, 11671, Saudi Arabia
| | | | | | - Muhammad Hamzah Saleem
- Office of Academic Research, Office of VP for Research & Graduate Studies, Qatar University, 2713, Doha, Qatar.
| | - Amany H A Abeed
- Department of Botany and Microbiology, Faculty of Science, Assiut University, Assiut, 71516, Egypt
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Şimşek H, Gür C, Küçükler S, İleritürk M, Akaras N, Öz M, Kandemir FM. Carvacrol Reduces Mercuric Chloride-Induced Testicular Toxicity by Regulating Oxidative Stress, Inflammation, Apoptosis, Autophagy, and Histopathological Changes. Biol Trace Elem Res 2023:10.1007/s12011-023-04022-2. [PMID: 38133725 DOI: 10.1007/s12011-023-04022-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023]
Abstract
Mercuric chloride (HgCl2) is a heavy metal that is toxic to the human body. Carvacrol (CAR) is a flavonoid found naturally in plants and has many biological and pharmacological activities including anti-inflammatory, antioxidant, and anticancer activities. This study aimed to investigate the efficacy of CAR in HgCl2-induced testicular tissue damage. HgCl2 was administered intraperitoneally at a dose of 1.23 mg/kg body weight alone or in combination with orally administered CAR (25 mg/kg and 50 mg/kg body weight) for 7 days. Biochemical and histological methods were used to investigate oxidative stress, inflammation, apoptosis, and autophagy pathways in testicular tissue. CAR treatment increased HgCl2-induced decreased antioxidant enzyme (SOD, CAT, and GPx) activities and GSH levels. In addition, CAR reduced MDA levels, a marker of lipid peroxidation. CAR decreased the levels of inflammatory mediators NF-κB, TNF-α, IL-1β, COX-2, iNOS, MAPK14, MAPK15, and JNK. The increases in apoptotic Bax and Caspase-3 with HgCl2 exposure decreased with CAR, while the decreased antiapoptotic Bcl-2 level increased. CAR reduced HgCl2-induced autophagy damage by increasing Beclin-1, LC3A, and LC3B levels. Overall, the data from this study suggested that testicular tissue damage associated with HgCl2 toxicity can be mitigated by CAR administration.
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Affiliation(s)
- Hasan Şimşek
- Department of Physiology, Faculty of Medicine, Aksaray University, Aksaray, Turkey.
| | - Cihan Gür
- Department of Veterinary Biochemistry, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Sefa Küçükler
- Department of Veterinary Biochemistry, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Mustafa İleritürk
- Department of Animal Science, Horasan Vocational College, Ataturk University, Erzurum, Turkey
| | - Nurhan Akaras
- Department of Histology and Embryology, Faculty of Medicine, Aksaray University, Aksaray, Turkey
| | - Mehmet Öz
- Department of Physiology, Faculty of Medicine, Aksaray University, Aksaray, Turkey
| | - Fatih Mehmet Kandemir
- Department of Medical Biochemistry, Faculty of Medicine, Aksaray University, Aksaray, Turkey
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6
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Ignatenko AA, Nilova IA, Kholoptseva ES, Titov AF, Kaznina NM. Effect of Seed Treatment with Salicylic Acid on the Carbonic Anhydrase Activity, Photosynthesis Rate, Stomatal Conductance, and Pigments Content in Wheat Leaves at Zinc Excess. DOKLADY BIOLOGICAL SCIENCES : PROCEEDINGS OF THE ACADEMY OF SCIENCES OF THE USSR, BIOLOGICAL SCIENCES SECTIONS 2023; 513:400-403. [PMID: 37950810 DOI: 10.1134/s0012496623700758] [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: 08/08/2023] [Revised: 08/30/2023] [Accepted: 09/02/2023] [Indexed: 11/13/2023]
Abstract
The effect of seed treatment with salicylic acid (SA) on the carbonic anhydrase (CA) activity, photosynthesis rate, stomatal conductance, and pigment content in wheat leaves was studied at an optimal zinc content (2 μM) and zinc excess (1500 μM). It was shown for the first time that the CA activity and stomatal conductance increased upon seed treatment with SA at the optimal zinc content as compared with untreated plants, while the photosynthesis rate was not affected. When zinc was in excess in the root zone, seed treatment with SA decreased the CA activity to a greater extent, but the photosynthesis rate was higher than in untreated plants, apparently due to an increase in the contents of chlorophylls and carotenoids and stomatal conductivity. It was concluded that SA is involved in the protective and adaptive responses of wheat plants to excess environmental zinc along with other nonhormonal factors and hormones.
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Affiliation(s)
- A A Ignatenko
- Institute of Biology, Karelian Research Center, Russian Academy of Sciences, Petrozavodsk, Russia.
| | - I A Nilova
- Institute of Biology, Karelian Research Center, Russian Academy of Sciences, Petrozavodsk, Russia
| | - E S Kholoptseva
- Institute of Biology, Karelian Research Center, Russian Academy of Sciences, Petrozavodsk, Russia
| | - A F Titov
- Institute of Biology, Karelian Research Center, Russian Academy of Sciences, Petrozavodsk, Russia
| | - N M Kaznina
- Institute of Biology, Karelian Research Center, Russian Academy of Sciences, Petrozavodsk, Russia
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7
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Elazab D, Lambardi M, Capuana M. In Vitro Culture Studies for the Mitigation of Heavy Metal Stress in Plants. PLANTS (BASEL, SWITZERLAND) 2023; 12:3387. [PMID: 37836127 PMCID: PMC10574448 DOI: 10.3390/plants12193387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023]
Abstract
Heavy metals are among the most common and dangerous contaminants; their action on plants, as well as the possibility for plants to effectively absorb and translocate them, have been studied for several years, mainly for exploitation in phytoremediation, an environmentally friendly and potentially effective technology proposed and studied for the recovery of contaminated soils and waters. In this work, the analysis has focused on the studies developed using in vitro techniques on the possibilities of mitigating, in plants, the stress due to the presence of heavy metals and/or improving their absorption. These objectives can be pursued with the use of different substances and organisms, which have been examined in detail. The following are therefore presented in this review: an analysis of the role of metals and metalloids; the use of several plant growth regulators, with their mechanisms of action in different physiological phases of the plant; the activity of bacteria and fungi; and the role of other effective compounds, such as ascorbic acid and glutathione.
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Affiliation(s)
- Doaa Elazab
- IBE—Institute of BioEconomy, National Research Council (CNR), 50019 Florence, Italy; (D.E.); (M.L.)
- Department of Pomology, Faculty of Agriculture, Assiut University, Assiut 71526, Egypt
| | - Maurizio Lambardi
- IBE—Institute of BioEconomy, National Research Council (CNR), 50019 Florence, Italy; (D.E.); (M.L.)
| | - Maurizio Capuana
- IBBR—Institute of Biosciences and Bioresources, National Research Council (CNR), 50019 Florence, Italy
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8
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Liang Y, Li D, Sheng Q, Zhu Z. Exogenous Salicylic Acid Alleviates NO 2 Damage by Maintaining Cell Stability and Physiological Metabolism in Bougainvillea × buttiana 'Miss Manila' Seedlings. PLANTS (BASEL, SWITZERLAND) 2023; 12:3283. [PMID: 37765447 PMCID: PMC10535129 DOI: 10.3390/plants12183283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/07/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023]
Abstract
Exogenous substances can alleviate plant damage under adverse conditions. In order to explore whether different concentrations of salicylic acid (SA) can play a role in the resistance of Bougainvillea × buttiana 'Miss Manila' to nitrogen dioxide (NO2) stress and the relevant mechanisms of their effects, different concentrations of SA were applied locally under the control experiment condition of 4.0 μL·L-1 NO2, and the role of SA in alleviating injury was studied. The findings noted a significant increase in metabolic adaptations and antioxidant enzyme activities following 0.25-0.75 mM SA application (p < 0.05), except 1 mM. Superoxide dismutase (SOD) and catalase (CAT) in particular increased by 21.88% and 59.71%, respectively. Such an increase led to effective control of the reduction in photosynthetic pigments and the photosynthetic rate and protection of the structural stability of chloroplasts and other organelles. In addition, the activity of nitrate reductase (NR) increased by 83.85%, and the content of nitrate nitrogen (NO3--N) decreased by 29.23% in nitrogen metabolism. Concurrently, a principal component analysis (PCA) and a membership function analysis further indicated that 0.75 mM SA provided the most notable improvement in NO2 resistance among the different gradients. These findings suggest that 0.25-0.75 mM SA can relieve the stress at 4 μL·L-1 NO2 injury by effectively improving the antioxidant enzyme activity and nitrogen metabolizing enzyme activity, protecting the photosynthetic system and cell structure, but 1 mM SA had the opposite effect. In the future, the specific reasons for inhibition of SA at high concentrations and the comprehensive effects of the application of other exogenous compounds should be further studied.
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Affiliation(s)
- Yuxiang Liang
- College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- The Center of Southern Modern Forestry Cooperative Innovation, Nanjing Forestry University, Nanjing 210037, China
| | - Dalu Li
- College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- The Center of Southern Modern Forestry Cooperative Innovation, Nanjing Forestry University, Nanjing 210037, China
| | - Qianqian Sheng
- College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- The Center of Southern Modern Forestry Cooperative Innovation, Nanjing Forestry University, Nanjing 210037, China
- Research Center for Digital Innovation Design, Nanjing Forestry University, Nanjing 210037, China
- Jin Pu Research Institute, Nanjing Forestry University, Nanjing 210037, China
| | - Zunling Zhu
- College of Landscape Architecture, Nanjing Forestry University, Nanjing 210037, China
- The Center of Southern Modern Forestry Cooperative Innovation, Nanjing Forestry University, Nanjing 210037, China
- Research Center for Digital Innovation Design, Nanjing Forestry University, Nanjing 210037, China
- Jin Pu Research Institute, Nanjing Forestry University, Nanjing 210037, China
- College of Art and Design, Nanjing Forestry University, Nanjing 210037, China
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Sun W, Shahrajabian MH, Petropoulos SA, Shahrajabian N. Developing Sustainable Agriculture Systems in Medicinal and Aromatic Plant Production by Using Chitosan and Chitin-Based Biostimulants. PLANTS (BASEL, SWITZERLAND) 2023; 12:2469. [PMID: 37447031 DOI: 10.3390/plants12132469] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/15/2023]
Abstract
Chitosan is illustrated in research as a stimulant of plant tolerance and resistance that promotes natural defense mechanisms against biotic and abiotic stressors, and its use may lessen the amount of agrochemicals utilized in agriculture. Recent literature reports indicate the high efficacy of soil or foliar usage of chitin and chitosan in the promotion of plant growth and the induction of secondary metabolites biosynthesis in various species, such as Artemisia annua, Curcuma longa, Dracocephalum kotschyi, Catharanthus roseus, Fragaria × ananassa, Ginkgo biloba, Iberis amara, Isatis tinctoria, Melissa officinalis, Mentha piperita, Ocimum basilicum, Origanum vulgare ssp. Hirtum, Psammosilene tunicoides, Salvia officinalis, Satureja isophylla, Stevia rebaudiana, and Sylibum marianum, among others. This work focuses on the outstanding scientific contributions to the field of the production and quality of aromatic and medicinal plants, based on the different functions of chitosan and chitin in sustainable crop production. The application of chitosan can lead to increased medicinal plant production and protects plants against harmful microorganisms. The effectiveness of chitin and chitosan is also due to the low concentration required, low cost, and environmental safety. On the basis of showing such considerable characteristics, there is increasing attention on the application of chitin and chitosan biopolymers in horticulture and agriculture productions.
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Affiliation(s)
- Wenli Sun
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | | | - Spyridon A Petropoulos
- Department of Agriculture, Crop Production and Rural Environment, University of Thessaly, 38446 Volos, Greece
| | - Nazanin Shahrajabian
- Department of Economics, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan 81595-158, Iran
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10
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Meyer L, Guyot S, Chalot M, Capelli N. The potential of microorganisms as biomonitoring and bioremediation tools for mercury-contaminated soils. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115185. [PMID: 37385017 DOI: 10.1016/j.ecoenv.2023.115185] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/20/2023] [Accepted: 06/24/2023] [Indexed: 07/01/2023]
Abstract
Mercury (Hg) pollution is a global issue due to the high toxicity and wide dispersion of Hg around the world. Whether due to anthropogenic activities or natural processes, Hg emissions are steadily increasing, with very high levels in some regions, directly threatening human and ecosystem health. However, bacteria and fungi have evolved and adapted in response to Hg-induced stress and have developed tolerance mechanisms, notably based on the mer operon system that is involved in Hg uptake and biovolatilization via Hg reduction reactions. Other processes, such as bioaccumulation or extracellular sequestration, are involved in Hg resistance, and the study of contaminated soils has allowed the isolation of a number of microorganisms capable of these mechanisms, with strong potential for the implementation of bioremediation approaches. In addition to playing an important role in determining the fate of Hg in the biogeochemical cycle, these microorganisms can indeed be applied to reduce Hg concentrations or at least stabilize Hg for the remediation of polluted soils. Moreover, thanks to the development of biotechnological tools, bioremediation based on Hg-tolerant microorganisms can be optimized. Finally, these microorganisms are relevant candidates for biomonitoring, for example, through the engineering of biosensors, because the detection of Hg is a major issue in preserving the health of living beings.
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Affiliation(s)
- Lorraine Meyer
- Chrono-environnement UMR 6249, Université de Franche-Comté CNRS, F-25000 Besançon, France
| | - Stéphane Guyot
- Université de Bourgogne, Institut Agro, PAM UMR A 02.102, F-21000 Dijon, France
| | - Michel Chalot
- Chrono-environnement UMR 6249, Université de Franche-Comté CNRS, F-25000 Besançon, France; Université de Lorraine, F-54000 Nancy, France
| | - Nicolas Capelli
- Chrono-environnement UMR 6249, Université de Franche-Comté CNRS, F-25000 Besançon, France.
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11
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Kapoor RT, Ahmad A, Shakoor A, Paray BA, Ahmad P. Nitric Oxide and Strigolactone Alleviate Mercury-Induced Oxidative Stress in Lens culinaris L. by Modulating Glyoxalase and Antioxidant Defense System. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091894. [PMID: 37176951 PMCID: PMC10181142 DOI: 10.3390/plants12091894] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/30/2023] [Accepted: 02/06/2023] [Indexed: 05/15/2023]
Abstract
Developmental activities have escalated mercury (Hg) content in the environment and caused food security problems. The present investigation describes mercury-incited stress in Lens culinaris (lentil) and its mitigation by supplementation of sodium nitroprusside (SNP) and strigolactone (GR24). Lentil exposure to Hg decreased root and shoot length, relative water content and biochemical variables. Exogenous application of SNP and GR24 alone or in combination enhanced all of the aforementioned growth parameters. Hg treatment increased electrolyte leakage and malondialdehyde content, but this significantly decreased with combined application (Hg + SNP + GR24). SNP and GR24 boosted mineral uptake and reduced Hg accumulation, thus minimizing the adverse impacts of Hg. An increase in mineral accretion was recorded in lentil roots and shoots in the presence of SNP and GR24, which might support the growth of lentil plants under Hg stress. Hg accumulation was decreased in lentil roots and shoots by supplementation of SNP and GR24. The methylglyoxal level was reduced in lentil plants with increase in glyoxalase enzymes. Antioxidant and glyoxylase enzyme activities were increased by the presence of SNP and GR24. Therefore, synergistic application of nitric oxide and strigolactone protected lentil plants against Hg-incited oxidative pressure by boosting antioxidant defense and the glyoxalase system, which assisted in biochemical processes regulation.
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Affiliation(s)
- Riti Thapar Kapoor
- Plant Physiology Laboratory, Amity Institute of Biotechnology, Amity University Uttar Pradesh, Noida 201313, Uttar Pradesh, India
| | - Ajaz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Awais Shakoor
- Department of Environment and Soil Sciences, University of Lleida, 25198 Lleida, Spain
| | - Bilal Ahamad Paray
- Zoology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Parvaiz Ahmad
- Department of Botany, Govt. Degree College, Pulwama 192301, Jammu and Kashmir, India
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Moustakas M, Sperdouli I, Moustaka J, Şaş B, İşgören S, Morales F. Mechanistic Insights on Salicylic Acid Mediated Enhancement of Photosystem II Function in Oregano Seedlings Subjected to Moderate Drought Stress. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12030518. [PMID: 36771603 PMCID: PMC9919124 DOI: 10.3390/plants12030518] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/15/2023] [Accepted: 01/19/2023] [Indexed: 06/12/2023]
Abstract
Dramatic climate change has led to an increase in the intensity and frequency of drought episodes and, together with the high light conditions of the Mediterranean area, detrimentally influences crop production. Salicylic acid (SA) has been shown to supress phototoxicity, offering photosystem II (PSII) photoprotection. In the current study, we attempted to reveal the mechanism by which SA is improving PSII efficiency in oregano seedlings under moderate drought stress (MoDS). Foliar application of SA decreased chlorophyll content under normal growth conditions, but under MoDS increased chlorophyll content, compared to H2O-sprayed oregano seedlings. SA improved the PSII efficiency of oregano seedlings under normal growth conditions at high light (HL), and under MoDS, at both low light (LL) and HL. The mechanism by which, under normal growth conditions and HL, SA sprayed oregano seedlings compared to H2O-sprayed exhibited a more efficient PSII photochemistry, was the increased (17%) fraction of open PSII reaction centers (qp), and the increased (7%) efficiency of these open reaction centers (Fv'/Fm'), which resulted in an enhanced (24%) electron transport rate (ETR). SA application under MoDS, by modulating chlorophyll content, resulted in optimized antenna size and enhanced effective quantum yield of PSII photochemistry (ΦPSII) under both LL (7%) and HL (25%), compared to non-SA-sprayed oregano seedlings. This increased effective quantum yield of PSII photochemistry (ΦPSII) was due to the enhanced efficiency of the oxygen evolving complex (OEC), and the increased fraction of open PSII reaction centers (qp), which resulted in an increased electron transport rate (ETR) and a lower amount of singlet oxygen (1O2) production with less excess excitation energy (EXC).
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Affiliation(s)
- Michael Moustakas
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ilektra Sperdouli
- Institute of Plant Breeding and Genetic Resources, Hellenic Agricultural Organisation–Demeter (ELGO-Demeter), 57001 Thessaloniki, Greece
| | - Julietta Moustaka
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark
| | - Begüm Şaş
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Sumrunaz İşgören
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Fermín Morales
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Avda. de Pamplona 123, 31192 Navarra, Spain
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Shahrajabian MH, Sun W. Sustainable Approaches to Boost Yield and Chemical Constituents of Aromatic and Medicinal Plants by Application of Biostimulants. RECENT ADVANCES IN FOOD, NUTRITION & AGRICULTURE 2022; 13:RAFNA-EPUB-126745. [PMID: 36200191 DOI: 10.2174/2772574x13666221004151822] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 07/15/2022] [Accepted: 08/11/2022] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Biostimulants consist of natural ingredients, metabolites of fermentation, micro-organisms, algae or plant extracts, bacteria, mushrooms, humus substances, amino acids, biomolecules, etc. Methods: In this study, all relevant English-language articles were collected. The literature was reviewed using the keywords of biostimulant, medicinal plant, aromatic plant, natural products, and pharmaceutical benefits from Google Scholar, Scopus, and PubMed databases. RESULTS The significant and promoting impact of biostimulants has been reported for different medicinal and aromatic plants, such as salicylic acid for ajuga, artichoke, ajwain, basil, common rue, common sage, common thyme, coneflower, coriander, dendrobium, desert Indian wheat, dragonhead, fennel, fenugreek, feverfew, ginger, groundnut, guava, henna, Iranian soda, lavender, lemon balm, lemongrass, Malabar spinach; seaweed extract on almond, bird, s eye chili; amino acids on artemisia, broccoli, chamomile, beneficial bacteria on ashwagandha; humic acid on black cumin, cannabis, chicory, garlic, gerbera, Hungarian vetch, Moldavian dragonhead, niger plant; chitosan on dragon fruit, marigold, milk thistle, etc. The suggested mechanisms include the stimulatory impacts on the activity of enzymes involved in different biosynthetic processes, the hormone-like activity of biostimulant compounds and the improvement of nutrient uptake of plants. CONCLUSION The current manuscript gives many examples of the potential of biostimulants for medicinal and aromatic plant production. However, further studies are needed to better understand the effectiveness of different biostimulants and foliar applications in sustainable agriculture.
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Affiliation(s)
| | - Wenli Sun
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Mandal K, Dhal NK. Pollution resistance assessment of plants around chromite mine based on anticipated performance index, dust capturing capacity and metal accumulation index. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:63357-63368. [PMID: 35459993 DOI: 10.1007/s11356-022-20246-6] [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: 06/10/2021] [Accepted: 04/09/2022] [Indexed: 06/14/2023]
Abstract
Plant species sustaining under a polluted environment for a long time are considered as potentially resistant species. Those plant species can be considered as an eco-sustainable tool used to bio-monitor and mitigate pollution. This study was carried out on a total of ten commonly available plant species to assess their anticipated performance index (API), dust capturing capacity (DCC), and metal accumulation index (MAI) in chromite mine and control areas. According to the anticipated performance index (API), Macaranga peltata (Roxb.) Müll.Arg., Holarrhena pubescens Wall. ex G.Don and Ficus hispida Roxb. ex Wall. are highly tolerant species while Terminalia arjuna (Roxb. ex DC.) Wight & Arn. and Trema orientalis (L.) Blume are intermediate tolerant species. F. hispida was also shown to have the highest dust capturing capacity (5.94 ± 0.43 mg/cm2) whereas that of Woodfordia fruticosa Kurz (1.03 ± 0.11 mg/cm2) was found to be lowest. The metal accumulation index ranged from 17.29 to 4.5 and 6.38 to 1.94 at the mine and control areas, respectively. Two-way ANOVA analysis revealed area-wise significant differences between biochemical and physiological parameters. Also, results showed that the pollution level and heavy metal affected different biochemical and physiological parameters of plant species at the mining area. The plant species with the highest API, DCC, and MAI value could be recommended for greenbelt development in different polluted areas.
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Affiliation(s)
- Kalicharan Mandal
- Academy of Scientific and Innovative Research (AcSIR), CSIR-Human Resource Development Centre, (CSIR-HRDC) Campus, Ghaziabad, Uttar Pradesh, 201002, India
- Environment & Sustainability Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, 751013, Odisha, India
| | - Nabin Kumar Dhal
- Environment & Sustainability Department, CSIR-Institute of Minerals & Materials Technology, Bhubaneswar, 751013, Odisha, India.
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Moustakas M, Sperdouli I, Adamakis IDS, Moustaka J, İşgören S, Şaş B. Harnessing the Role of Foliar Applied Salicylic Acid in Decreasing Chlorophyll Content to Reassess Photosystem II Photoprotection in Crop Plants. Int J Mol Sci 2022; 23:ijms23137038. [PMID: 35806045 PMCID: PMC9266436 DOI: 10.3390/ijms23137038] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 02/06/2023] Open
Abstract
Salicylic acid (SA), an essential plant hormone, has received much attention due to its role in modulating the adverse effects of biotic and abiotic stresses, acting as an antioxidant and plant growth regulator. However, its role in photosynthesis under non stress conditions is controversial. By chlorophyll fluorescence imaging analysis, we evaluated the consequences of foliar applied 1 mM SA on photosystem II (PSII) efficiency of tomato (Solanum lycopersicum L.) plants and estimated the reactive oxygen species (ROS) generation. Tomato leaves sprayed with 1 mM SA displayed lower chlorophyll content, but the absorbed light energy was preferentially converted into photochemical energy rather than dissipated as thermal energy by non-photochemical quenching (NPQ), indicating photoprotective effects provided by the foliar applied SA. This decreased NPQ, after 72 h treatment by 1 mM SA, resulted in an increased electron transport rate (ETR). The molecular mechanism by which the absorbed light energy was more efficiently directed to photochemistry in the SA treated leaves was the increased fraction of the open PSII reaction centers (qp), and the increased efficiency of open reaction centers (Fv’/Fm’). SA induced a decrease in chlorophyll content, resulting in a decrease in non-regulated energy dissipated in PSII (ΦNO) under high light (HL) treatment, suggesting a lower amount of triplet excited state chlorophyll (3Chl*) molecules available to produce singlet oxygen (1O2). Yet, the increased efficiency, compared to the control, of the oxygen evolving complex (OEC) on the donor side of PSII, associated with lower formation of hydrogen peroxide (H2O2), also contributed to less creation of ROS. We conclude that under non stress conditions, foliar applied SA decreased chlorophyll content and suppressed phototoxicity, offering PSII photoprotection; thus, it can be regarded as a mechanism that reduces photoinhibition and photodamage, improving PSII efficiency in crop plants.
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Affiliation(s)
- Michael Moustakas
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (J.M.); (S.İ.); (B.Ş.)
- Correspondence:
| | - Ilektra Sperdouli
- Institute of Plant Breeding and Genetic Resources, Hellenic Agricultural Organisation-Demeter (ELGO-Demeter), 57001 Thessaloniki, Greece;
| | | | - Julietta Moustaka
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (J.M.); (S.İ.); (B.Ş.)
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark
| | - Sumrunaz İşgören
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (J.M.); (S.İ.); (B.Ş.)
| | - Begüm Şaş
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (J.M.); (S.İ.); (B.Ş.)
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Vega A, Delgado N, Handford M. Increasing Heavy Metal Tolerance by the Exogenous Application of Organic Acids. Int J Mol Sci 2022; 23:5438. [PMID: 35628249 PMCID: PMC9141679 DOI: 10.3390/ijms23105438] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/29/2022] [Accepted: 05/07/2022] [Indexed: 02/01/2023] Open
Abstract
Several metals belong to a group of non-biodegradable inorganic constituents that, at low concentrations, play fundamental roles as essential micronutrients for the growth and development of plants. However, in high concentrations they can have toxic and/or mutagenic effects, which can be counteracted by natural chemical compounds called chelators. Chelators have a diversity of chemical structures; many are organic acids, including carboxylic acids and cyclic phenolic acids. The exogenous application of such compounds is a non-genetic approach, which is proving to be a successful strategy to reduce damage caused by heavy metal toxicity. In this review, we will present the latest literature on the exogenous addition of both carboxylic acids, including the Kreb's Cycle intermediates citric and malic acid, as well as oxalic acid, lipoic acid, and phenolic acids (gallic and caffeic acid). The use of two non-traditional organic acids, the phytohormones jasmonic and salicylic acids, is also discussed. We place particular emphasis on physiological and molecular responses, and their impact in increasing heavy metal tolerance, especially in crop species.
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Affiliation(s)
| | | | - Michael Handford
- Centro de Biología Molecular Vegetal, Departamento de Biología, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago 7800024, Chile; (A.V.); (N.D.)
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Sharma A, Kapoor D, Gautam S, Landi M, Kandhol N, Araniti F, Ramakrishnan M, Satish L, Singh VP, Sharma P, Bhardwaj R, Tripathi DK, Zheng B. Heavy metal induced regulation of plant biology: Recent insights. PHYSIOLOGIA PLANTARUM 2022; 174:e13688. [PMID: 35470470 DOI: 10.1111/ppl.13688] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 06/01/2021] [Accepted: 04/15/2022] [Indexed: 06/14/2023]
Abstract
The presence of different forms of heavy metals in the earth crust is very primitive and probably associated with the origin of plant life. However, since the beginning of human civilisation, heavy metal use and its contamination to all living systems on earth have significantly increased due to human anthropogenic activities. Heavy metals are nonbiodegradable, which directly or indirectly impact photosynthesis, antioxidant system, mineral nutrition status, phytohormones and amino acid-derived molecules. Due to the toxic behaviour of some heavy metals, the endogenous status of chemical messengers like phytohormones may get significantly influenced, leading to harmful impacts on plant growth, development and overall yield of the plants. It has been noticed that exogenous application of phytohormones, that is, abscisic acid, salicylic acid, auxins, brassinosteroids, cytokinins, ethylene and gibberellins can positively regulate the heavy metal toxicity in plants through the regulation of the ascorbate-glutathione cycle, nitrogen metabolism, proline metabolisms, transpiration rate, and cell division. Furthermore, it may also restrict the entry of heavy metals into the plant cells, which aids in the recovery of plant growth and productivity. Besides these, some defence molecules also assist the plant in dealing with heavy metal toxicity. Therefore, the present review aims to bridge the knowledge gap in this context and present outstanding discoveries related to plant life supportive processes during stressful conditions including phytohormones and heavy metal crosstalk along with suggestions for future research in this field.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Dhriti Kapoor
- Department of Botany, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Shristy Gautam
- Department of Botany, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, India
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, Pisa, Italy
- CIRSEC, Centre for Climatic Change Impact, University of Pisa, Pisa, Italy
| | - Nidhi Kandhol
- Amity Institute of Organic Agriculture, Amity University, Uttar Pradesh, India
| | - Fabrizio Araniti
- Dipartimento di Scienze Agrarie e Ambientali-Produzione, Territorio, Agroenergia, Università Statale di Milano, Milano, Italy
| | - Muthusamy Ramakrishnan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
| | - Lakkakula Satish
- Department of Biotechnology Engineering, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of Negev, Beer Sheva, Israel
| | - Vijay Pratap Singh
- Plant Physiology Laboratory, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Allahabad, India
| | - Priyanka Sharma
- School of Bioengineering Sciences & Research, Pune, Maharashtra, India
| | - Renu Bhardwaj
- Plant Stress Physiology Lab, Department of Botanical and Environment Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | | | - Bingsong Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China
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İşkil R, Surgun-Acar Y, Çatav ŞS, Zemheri-Navruz F, Erden Y. Mercury toxicity affects oxidative metabolism and induces stress responsive mechanisms in wheat ( Triticum aestivum L.). PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:911-920. [PMID: 35592475 PMCID: PMC9110583 DOI: 10.1007/s12298-022-01171-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/23/2022] [Accepted: 03/25/2022] [Indexed: 06/15/2023]
Abstract
Mercury (Hg) toxicity is an increasing problem worldwide, with a negative impact on the environment and living organisms including both animals and plants. In this study, we analyzed molecular and biochemical changes related to Hg toxicity in wheat (Triticum aestivum L.) seedlings. Seven-day-old seedlings were exposed to various concentrations (5, 10, and 20 µM) of HgCl2 for 24 and 48 h. Our results showed that HgCl2 treatments led to an increase in the Hg content of wheat leaves in a time- and concentration-dependent manner. Furthermore, significant increases were observed in hydrogen peroxide, malondialdehyde, and proline contents in response to Hg toxicity. While all HgCl2 treatments decreased the level of superoxide dismutase (SOD), the level of catalase (CAT) was reduced only in seedlings exposed to 5 µM of HgCl2. Mercury stress caused a decline in the expression of Cu/Zn-SOD, Fe-SOD, TaWRKY19, and TaDREB1 genes at both exposure times. On the other hand, 10 and 20 µM HgCl2 treatments caused significant induction (1.9 to 6.1-fold) in the expression of the CAT gene in wheat leaves. The mRNA level of the Mn-SOD and TaWRKY2 genes showed different patterns depending on the concentration and exposure period of HgCl2. In conclusion, the findings of this work demonstrate that Hg toxicity causes oxidative damage in wheat seedlings and changes the expression of some genes encoding WRKY and DREB transcription factor families, which have important functions in abiotic stress response.
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Affiliation(s)
- Rabia İşkil
- Department of Forest Engineering, Faculty of Forest, Bartın University, 74100 Bartın, Turkey
| | - Yonca Surgun-Acar
- Department of Agricultural Biotechnology, Faculty of Agriculture, Çanakkale Onsekiz Mart University, 17000 Çanakkale, Turkey
| | - Şükrü Serter Çatav
- Division of Botany, Department of Biology, Muğla Sıtkı Koçman University, 48000 Muğla, Turkey
| | - Fahriye Zemheri-Navruz
- Department of Molecular Biology and Genetics, Faculty of Science, Bartın University, 74100 Bartın, Turkey
| | - Yavuz Erden
- Department of Molecular Biology and Genetics, Faculty of Science, Bartın University, 74100 Bartın, Turkey
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Liu T, Luo J, Liu S, Li T, Li H, Zhang L, Mu W, Zou N. Clothianidin loaded TA/Fe (III) controlled-release granules: improve pesticide bioavailability and alleviate oxidative stress. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125861. [PMID: 34492809 DOI: 10.1016/j.jhazmat.2021.125861] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 03/27/2021] [Accepted: 04/08/2021] [Indexed: 06/13/2023]
Abstract
Neonicotinoid insecticides have been widely used due to their excellent systemic activity and high insecticidal activity, but the problems of low utilization rate and environmental risk have attracted widespread attention. Controlled-release technology is an approach to realize the efficient utilization of pesticides and reduce environmental pressure. In this study, clothianidin (CLO) controlled-release granules (CLO@GR- TA (tannic acid)/Fe (III)) were prepared with TA/Fe (III) coordination chelate as the coating material. These granules exhibited the core-shell structure with 500-1200 µm of particle size, and had obvious release performance and hydrolysis behavior of coating materials. Pot experiments by root application showed that the CLO@GR-TA/Fe (III) showed balanced and lasting control efficacy to broad bean aphids. The plants have a stronger capacity for absorption and enrichment and a higher utilization rate of CLO for CLO@GR-TA/Fe (III), than those for 10% suspension concentrate (SC). One of the hydrolysates of coating materials, TA, a polyphenolic antioxidant, could improve the bioaccumulation amount and alleviating the oxidative stress response of CLO in plants. Our study illustrates that the controlled-release granules base on TA have efficient controlled-release properties and free radical scavenging performance that may eventually be used as pesticide carriers and antioxidants in the field of plant protection.
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Affiliation(s)
- Tingting Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Jian Luo
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Shangke Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Tongtong Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Haolin Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Lingyan Zhang
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Wei Mu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China.
| | - Nan Zou
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China.
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Hu L, Liu B, Li S, Zhong H, He Z. Study on the oxidative stress and transcriptional level in Cr(VI) and Hg(II) reducing strain Acinetobacter indicus yy-1 isolated from chromium-contaminated soil. CHEMOSPHERE 2021; 269:128741. [PMID: 33127119 DOI: 10.1016/j.chemosphere.2020.128741] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 09/22/2020] [Accepted: 10/22/2020] [Indexed: 06/11/2023]
Abstract
The bioreduction of Cr(VI) and Hg(II) has become a hot topic in the field of heavy metals bioremediation. However, the mechanism of antioxidant stress in Cr(VI) and Hg(II) reducing bacteria is still not clear. In this work, a novel Cr(VI) and Hg(II) reducing strain Acinetobacter indicus yy-1, was isolated from chromium landfill at a chromate factory, which was used to investigate the mechanism of antioxidant stress during the Cr(VI) and Hg(II) reduction process. The results demonstrated that the removal of Cr(VI) and Hg(II) by A. indicus yy-1 from solution was through reduction rather than biosorption. The reduction rates of Cr(VI) and Hg(II) by resting cells reached 59.71% and 31.73% at 24 h with initial concentration of 10 mg L-1, respectively. X-ray photoelectron spectroscopy (XPS) analysis further showed that Cr(III) and Hg(0) were mainly the Cr(VI)- and Hg(II)-reduced productions, respectively. Results of physiological assays showed Hg(II) was more toxic to A. indicus yy-1 than Cr(VI), and the activities of antioxidant enzymes (SOD and CAT) were significantly increased in A. indicus yy-1 for relieving the oxidative stress. The transcriptional level of genes related to Cr(VI) and Hg(II) reductases and antioxidant enzymes were up-regulated, indicating that the reductases have participated in the reduction of Cr(VI) and Hg(II), and SOD and CAT served as the vital antioxidant enzymes for defending the oxidative stress. This work provides a deep insight into the mechanism of antioxidant stress in Cr(VI) and Hg(II) reducing bacteria, which helps seek the highly resistant heavy metal reducing bacteria.
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Affiliation(s)
- Liang Hu
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Bang Liu
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Shuzhen Li
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China
| | - Hui Zhong
- School of Life Science, Central South University, Changsha, 410012, China.
| | - Zhiguo He
- School of Minerals Processing and Bioengineering, Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha, 410083, China.
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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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22
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de Lima FRD, Barbosa AP, Vasques ICF, Oliveira JR, Silva AO, Martins GC, Engelhardt MM, Pereira P, Dos Reis RHCL, Guilherme LRG, Marques JJ. Physiological effects of mercury-contaminated Oxisols on common bean and oat. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:11279-11288. [PMID: 33113065 DOI: 10.1007/s11356-020-11286-x] [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: 06/12/2020] [Accepted: 10/15/2020] [Indexed: 05/04/2023]
Abstract
The heavy metal mercury (Hg) is one of the most complex and toxic pollutants. When present in soils, it may impair plant growth, but the intensity of damage depends on the physical-chemical properties of the soil such as pH, clay, and organic matter content, which in turn affects Hg sorption and bioavailability. Understanding Hg potential damage to staple food crops is of paramount relevance. Here, we evaluated the physiological effects of Hg in Phaseolus vulgaris (common bean) and Avena sativa (oat) cultivated in two Oxisols with contrasting properties: Rhodic Acrudox (RA) and Typic Hapludox (TH). We performed four independent experiments (one per species/soil combination) that lasted 30 days each. Treatments were composed by HgCl2 concentrations in soils (0 to 80 mg kg-1 Hg). At the end of the experiment, we determined the impact of Hg on photosynthesis, nutritional status, and oxidative stress. Cultivation in TH contaminated with Hg resulted in oxidative stress in common bean and decreased photosynthesis/P accumulation in oat. No deleterious effects on physiological variables were detected in both species when cultivated in the RA soil. In general, we conclude that the lower Hg sorption in the TH soil resulted in toxicity-like responses, while acclimation-like responses were observed in plants cultivated in RA, reinforcing soil physical-chemical properties as key features driving Hg toxicity in Oxisols. Graphical abstract.
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Affiliation(s)
| | - Alice Pita Barbosa
- Center for Coastal, Limnological and Marine Studies, Federal University of Rio Grande do Sul, Imbé, Rio Grande do Sul State, 95625-000, Brazil
| | | | - Jakeline Rosa Oliveira
- Soil Science Department, Federal University of Lavras, Lavras, Minas Gerais State, 37200-900, Brazil
| | - Aline Oliveira Silva
- Soil Science Department, Federal University of Lavras, Lavras, Minas Gerais State, 37200-900, Brazil
| | | | - Mateus Moreira Engelhardt
- Soil Science Department, Federal University of Lavras, Lavras, Minas Gerais State, 37200-900, Brazil
| | - Polyana Pereira
- Soil Science Department, Federal University of Lavras, Lavras, Minas Gerais State, 37200-900, Brazil
| | | | | | - João José Marques
- Soil Science Department, Federal University of Lavras, Lavras, Minas Gerais State, 37200-900, Brazil.
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Liu T, Li T, Zhang L, Li H, Liu S, Yang S, An Q, Pan C, Zou N. Exogenous salicylic acid alleviates the accumulation of pesticides and mitigates pesticide-induced oxidative stress in cucumber plants (Cucumis sativus L.). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 208:111654. [PMID: 33396168 DOI: 10.1016/j.ecoenv.2020.111654] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 11/07/2020] [Accepted: 11/11/2020] [Indexed: 06/12/2023]
Abstract
Salicylic acid (SA) is an important signal molecule, regulating oxidative stress response in plants. In this study, we evaluated the influences of SA (1 mg L-1, 10 mg L-1 and 50 mg L-1) on the accumulation of clothianidin (CLO), dinotefuran (DFN) and difenoconazole (DFZ) (5 mg L-1) and pesticide-induced (CLO-10 mg L-1, DFN-20 mg L-1, and DFZ-10 mg L-1) oxidative stress in cucumber plants. Exogenous SA at 10 mg L-1 significantly reduced the half-lives of three pesticides in nutrient solution and prevented the accumulation of pesticides in roots and leaves. And the role of SA in reducing residues was related to the major accumulation sites of pesticides. By calculating the root concentration factor (RCF) and translocation factor (TF), we found that SA at 10 mg L-1 reduced the ability of roots to absorb pesticides and enhanced the translocation ability from roots to leaves. Roots exposed to high concentrations of three pesticides could reduce biomass, low chlorophyll content, increase the accumulation of reactive oxygen species (ROS) and proline, promote lipid peroxidation, and alter the activities of a range of antioxidant enzymes, respectively. Exogenous SA at low concentrations (1 mg L-1 and 10 mg L-1) significantly mitigated these negative effects. Hence, application of exogenous SA at 10 mg L-1 could effectively alleviate the accumulation of pesticides and induce stress tolerance in cucumber planting systems.
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Affiliation(s)
- Tingting Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Tongtong Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Lingyan Zhang
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Haolin Li
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Shangke Liu
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Song Yang
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China
| | - Quanshun An
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Canping Pan
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, China
| | - Nan Zou
- Key Laboratory of Pesticide Toxicology & Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an 271018, China.
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24
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Cheng X, Fang T, Zhao E, Zheng B, Huang B, An Y, Zhou P. Protective roles of salicylic acid in maintaining integrity and functions of photosynthetic photosystems for alfalfa (Medicago sativa L.) tolerance to aluminum toxicity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 155:570-578. [PMID: 32846392 DOI: 10.1016/j.plaphy.2020.08.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 08/13/2020] [Accepted: 08/13/2020] [Indexed: 06/11/2023]
Abstract
Aluminum (Al) can be detrimental to plant growth in areas with Al contamination. The objective of this study was to determine whether salicylic acid (SA) can improve plant tolerance to Al stress by mitigating Al toxicity for chloroplasts and photosynthetic systems in alfalfa (Medicago sativa L.). Plants were treated with Al (100 μM) for 3 d in a hydroponic system. The content of Al increased in leaves treated with Al, resulting in damage and deformation of chloroplasts. In Al-damaged leaves, chloroplast envelopes and starch granules disappeared; the lamellae and stroma lamella were loosely arranged and indistinguishable, and the number of grana was reduced; a large number of small plastoglobules appeared. Foliar spraying of 15 μM SA reduced Al content in roots and leaves and alleviated Al damages in chloroplasts. With 15 μM SA treatments, the chloroplast shape returned to a flat ellipsoid, thylakoids were arranged closely and regularly, chloroplasts had intact starch granules, and small plastoglobules disappeared. SA-treated plants had significantly higher aboveground biomass than the untreated control exposed to Al stress. Photosynthetic index and gene expression analyses demonstrated that SA could alleviate adverse effects of Al toxicity by increasing light capture efficiency, promoting electron transport in the photosynthetic electron transport chain and thylakoid lumen deacidification, and promoting synthesis of aenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate (NADPH). SA played protective roles in maintaining integrity and functions of photosystems in photosynthesis for plant tolerance to Al stress.
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Affiliation(s)
- Xiaoqing Cheng
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Tingyu Fang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Enhua Zhao
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Baogang Zheng
- Zealquest Scientific Technology Co., Ltd., Shanghai, 200062, China
| | - Bingru Huang
- Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, New Jersey, NJ, 08901, USA
| | - Yuan An
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture, Shanghai, 201101, China.
| | - Peng Zhou
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
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25
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Farkhondeh T, Afshari R, Mehrpour O, Samarghandian S. Mercury and Atherosclerosis: Cell Biology, Pathophysiology, and Epidemiological Studies. Biol Trace Elem Res 2020; 196:27-36. [PMID: 31529242 DOI: 10.1007/s12011-019-01899-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Accepted: 09/09/2019] [Indexed: 12/21/2022]
Abstract
Today atherosclerosis is considered as a main cause of death in the worldwide. There is a significant association between heavy metal exposure and atherosclerosis. In this study, we discussed the scientific literature about the effect of mercury on the pathogenesis of atherosclerosis. We also considered the epidemiological studies on mercury as a risk factor for atherosclerosis. Web of Science, Google Scholar, Medline, PubMed, and Scopus were searched by using the following keywords to 2019: (cardiovascular diseases OR atherosclerosis OR endothelial dysfunction) AND (mercury). Mercury has the potential to act as one of the novel risk factors for atherosclerosis development. The findings have indicated the role of mercury in the pathogenesis of atherosclerosis, vascular endothelial dysfunction, oxidative stress, inflammation, and dyslipidemia. Mercury can induce atherosclerosis indirectly via increasing the total cholesterol, triglycerides, and LDL-C levels as well as decreasing the HDL-C level. Mercury can be considered as a risk factor in the atherosclerosis progression. However, more studies are required to find the exact mechanisms involved in the pathogenesis of atherosclerosis induced by mercury.
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Affiliation(s)
- Tahereh Farkhondeh
- Cardiovascular Diseases Research Center, Birjand University of Medical Sciences, Birjand, Iran
| | - Reza Afshari
- BC Centre for Disease Control, Vancouver, BC, Canada
- School of Population and Public Health, University of British Columbia, Vancouver, BC, Canada
| | - Omid Mehrpour
- Rocky Mountain Poison and Drug Safety, Denver Health, Denver, CO, USA
- Medical Toxicology and Drug Abuse Research Center (MTDRC), Birjand University of Medical Sciences, Birjand, Iran
| | - Saeed Samarghandian
- Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran.
- Department of Basic Medical Sciences, Neyshabur University of Medical Sciences, Neyshabur, Iran.
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26
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Liu Q, Liu M, Wu S, Xiao B, Wang X, Sun B, Zhu L. Metabolomics Reveals Antioxidant Stress Responses of Wheat ( Triticum aestivum L.) Exposed to Chlorinated Organophosphate Esters. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6520-6529. [PMID: 32433877 DOI: 10.1021/acs.jafc.0c01397] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this study, wheat (Triticum aestivum L.) was exposed to three of the most typical chlorinated organophosphate esters (OPEs), which are widely present in farmland soil, at environmental concentrations to assess their accumulation, disruption on metabolism, and oxidative stress in wheat. The three OPEs accumulated distinctly in the root and then translocated to the shoot. After exposure for 7 days, the content of chlorophyll b decreased, while the levels of carotenoid and activities of antioxidases, malonaldehyde, and reactive oxygen species increased significantly in both the root and shoot, indicating that the target OPEs caused significant oxidative stresses and affected photosynthesis in wheat. Untargeted metabolomics revealed concentration- and species-dependent metabolic responses of the three OPEs. Saccharides were downregulated, which might be due to the reduced photosynthesis activities. On the other hand, the chlorinated OPEs induced increases in respiration and antioxidative metabolites, revealing that the antioxidant system of wheat was active in scavenging ROS. The disturbance of tris(1,3-dichloro-2-propyl)phosphate on the metabolisms in wheat tissues was the strongest. These results contribute to the food safety and crop quality assessment of chlorinated OPEs and clarify the underlying mechanisms of their phytotoxicities.
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Affiliation(s)
- Qing Liu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Menglin Liu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Sihan Wu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Bowen Xiao
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Xiaolei Wang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Binbin Sun
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
| | - Lingyan Zhu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, People's Republic of China
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27
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Shahid M, Khalid S, Bibi I, Bundschuh J, Khan Niazi N, Dumat C. A critical review of mercury speciation, bioavailability, toxicity and detoxification in soil-plant environment: Ecotoxicology and health risk assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 711:134749. [PMID: 32000322 DOI: 10.1016/j.scitotenv.2019.134749] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 09/18/2019] [Accepted: 09/29/2019] [Indexed: 05/09/2023]
Abstract
Environmental contamination by a non-essential and non-beneficial, although potentially toxic mercury (Hg), is becoming a great threat to the living organisms at a global scale. Owing to its various uses in numerous industrial processes, high amount of Hg is released into different environmental compartments. Environmental Hg contamination can result in food chain contamination, especially due to its accumulation in edible plant parts. Consumption of Hg-rich food is a key source of Hg exposure to humans. Since Hg does not possess any identified biological role and has genotoxic and carcinogenic potential, it is critical to monitor its biogeochemical behavior in the soil-plant system and its influence in terms of possible food chain contamination and human exposure. This review traces a plausible link among Hg levels, its chemical speciation and phytoavailability in soil, accumulation in plants, phytotoxicity and detoxification of Hg inside the plant. The role of different enzymatic (peroxidase, catalase, ascorbate peroxidase, superoxide dismutase, glutathione peroxidase) and non-enzymatic (glutathione, phytochelatins, proline and ascorbic acid) antioxidants has also been elucidated with respect to enhanced generation of reactive radicles and resulting oxidative stress. The review also outlines Hg build-up in edible plant tissues and associated health risks. The biogeochemical role of Hg in the soil-plant system and associated health risks have been described with well summarized and up-to-date data in 12 tables and 4 figures. We believe that this comprehensive review article and meta-analysis of Hg data can be greatly valuable for scientists, researchers, policymakers and graduate-level students.
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Affiliation(s)
- Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari-61100, Pakistan.
| | - Sana Khalid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari-61100, Pakistan
| | - Irshad Bibi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Jochen Bundschuh
- UNESCO Chair on Groundwater Arsenic within the 2030 Agenda for Sustainable Development, University of Southern Queensland, West Street, Toowoomba, Queensland 4350, Australia
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan; School of Civil Engineering and Surveying, University of Southern Queensland, Toowoomba, Queensland, Australia.
| | - Camille Dumat
- Centre d'Etude et de Recherche Travail Organisation Pouvoir (CERTOP), UMR5044, Université J. Jaurès - Toulouse II, 5 allée Machado A., 31058 Toulouse, cedex 9, France; Université de Toulouse, INP-ENSAT, Avenue de l'Agrobiopole, 31326 Auzeville-Tolosane, France; Association Réseau-Agriville (http://reseau-agriville.com/), France
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28
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Sharma A, Sidhu GPS, Araniti F, Bali AS, Shahzad B, Tripathi DK, Brestic M, Skalicky M, Landi M. The Role of Salicylic Acid in Plants Exposed to Heavy Metals. Molecules 2020; 25:540. [PMID: 31991931 PMCID: PMC7037467 DOI: 10.3390/molecules25030540,] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
Abstract
Salicylic acid (SA) is a very simple phenolic compound (a C7H6O3 compound composed of an aromatic ring, one carboxylic and a hydroxyl group) and this simplicity contrasts with its high versatility and the involvement of SA in several plant processes either in optimal conditions or in plants facing environmental cues, including heavy metal (HM) stress. Nowadays, a huge body of evidence has unveiled that SA plays a pivotal role as plant growth regulator and influences intra- and inter-plant communication attributable to its methyl ester form, methyl salicylate, which is highly volatile. Under stress, including HM stress, SA interacts with other plant hormones (e.g., auxins, abscisic acid, gibberellin) and promotes the stimulation of antioxidant compounds and enzymes thereby alerting HM-treated plants and helping in counteracting HM stress. The present literature survey reviews recent literature concerning the roles of SA in plants suffering from HM stress with the aim of providing a comprehensive picture about SA and HM, in order to orientate the direction of future research on this topic.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
- Correspondence: (A.S.); (F.A.); (M.L.)
| | - Gagan Preet Singh Sidhu
- Department of Environment Education, Government College of Commerce and Business Administration, Chandigarh 160047, India;
| | - Fabrizio Araniti
- Dipartimento AGRARIA, Università Mediterranea di Reggio Calabria, Località Feo di Vito, SNC I-89124 Reggio Calabria, RC, Italy
- Correspondence: (A.S.); (F.A.); (M.L.)
| | | | - Babar Shahzad
- School of Land and Food, University of Tasmania, Hobart, TAS 7005, Australia;
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida 201313, India;
| | - Marian Brestic
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, 94976 Nitra, Slovakia;
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic;
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic;
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, I-56124 Pisa, Italy
- CIRSEC, Centre for Climatic Change Impact, University of Pisa, Via del Borghetto 80, I-56124 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, I-56124 Pisa, Italy
- Correspondence: (A.S.); (F.A.); (M.L.)
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29
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Sharma A, Sidhu GPS, Araniti F, Bali AS, Shahzad B, Tripathi DK, Brestic M, Skalicky M, Landi M. The Role of Salicylic Acid in Plants Exposed to Heavy Metals. Molecules 2020; 25:E540. [PMID: 31991931 PMCID: PMC7037467 DOI: 10.3390/molecules25030540] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/23/2020] [Accepted: 01/25/2020] [Indexed: 12/18/2022] Open
Abstract
Salicylic acid (SA) is a very simple phenolic compound (a C7H6O3 compound composed of an aromatic ring, one carboxylic and a hydroxyl group) and this simplicity contrasts with its high versatility and the involvement of SA in several plant processes either in optimal conditions or in plants facing environmental cues, including heavy metal (HM) stress. Nowadays, a huge body of evidence has unveiled that SA plays a pivotal role as plant growth regulator and influences intra- and inter-plant communication attributable to its methyl ester form, methyl salicylate, which is highly volatile. Under stress, including HM stress, SA interacts with other plant hormones (e.g., auxins, abscisic acid, gibberellin) and promotes the stimulation of antioxidant compounds and enzymes thereby alerting HM-treated plants and helping in counteracting HM stress. The present literature survey reviews recent literature concerning the roles of SA in plants suffering from HM stress with the aim of providing a comprehensive picture about SA and HM, in order to orientate the direction of future research on this topic.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Gagan Preet Singh Sidhu
- Department of Environment Education, Government College of Commerce and Business Administration, Chandigarh 160047, India;
| | - Fabrizio Araniti
- Dipartimento AGRARIA, Università Mediterranea di Reggio Calabria, Località Feo di Vito, SNC I-89124 Reggio Calabria, RC, Italy
| | | | - Babar Shahzad
- School of Land and Food, University of Tasmania, Hobart, TAS 7005, Australia;
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida 201313, India;
| | - Marian Brestic
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, 94976 Nitra, Slovakia;
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic;
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic;
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, I-56124 Pisa, Italy
- CIRSEC, Centre for Climatic Change Impact, University of Pisa, Via del Borghetto 80, I-56124 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, I-56124 Pisa, Italy
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