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Dubas E, Krzewska M, Surówka E, Kopeć P, Springer A, Janowiak F, Weigt D, Mikołajczyk SK, Telk A, Żur I. New Prospects for Improving Microspore Embryogenesis Induction in Highly Recalcitrant Winter Wheat Lines. PLANTS (BASEL, SWITZERLAND) 2024; 13:363. [PMID: 38337896 PMCID: PMC10857491 DOI: 10.3390/plants13030363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/02/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024]
Abstract
Among various methods stimulating biological progress, double haploid (DH) technology, which utilizes the process of microspore embryogenesis (ME), is potentially the most effective. However, the process depends on complex interactions between many genetic, physiological and environmental variables, and in many cases, e.g., winter wheat, does not operate with the efficiency required for commercial use. Stress associated with low-temperature treatment, isolation and transfer to in vitro culture has been shown to disturb redox homeostasis and generate relatively high levels of reactive oxygen species (ROS), affecting microspore vitality. The aim of this study was to investigate whether controlled plant growth, specific tiller pre-treatment and culture conditions could improve the potential of microspores to cope with stress and effectively induce ME. To understand the mechanism of the stress response, hydrogen peroxide levels, total activity and the content of the most important low-molecular-weight antioxidants (glutathione and ascorbate), as well as the content of selected macro- (Mg, Ca, NA, K) and micronutrients (Mn, Zn, Fe, Cu, Mo) were determined. These analyses, combined with the cytological characteristics of the microspore suspensions, allowed us to demonstrate that an increased microspore vitality and stronger response to ME induction were associated with higher stress resistance based on more efficient ROS scavenging and nutrient management. It was shown that a modified procedure, combining a low temperature with mannitol and sodium selenate tiller pre-treatment, reduced oxidative stress and improved the effectiveness of ME in winter wheat lines.
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Affiliation(s)
- Ewa Dubas
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Monika Krzewska
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Ewa Surówka
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Przemysław Kopeć
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Agnieszka Springer
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Franciszek Janowiak
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
| | - Dorota Weigt
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., 60-632 Poznań, Poland; (D.W.); (S.K.M.)
| | - Sylwia Katarzyna Mikołajczyk
- Department of Genetics and Plant Breeding, Poznań University of Life Sciences, 11 Dojazd St., 60-632 Poznań, Poland; (D.W.); (S.K.M.)
| | - Anna Telk
- Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland;
| | - Iwona Żur
- The Franciszek Górski Institute of Plant Physiology Polish Academy of Sciences, Niezapominajek 21, 30-239 Kraków, Poland; (E.D.); (M.K.); (E.S.); (P.K.); (A.S.); (F.J.)
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Tang Y, Zhao Y, Zhou Y, Li S, Wu C, Shi G, Hu C, Zhao X. Se Ameliorates Cd Toxicity in Oilseed rape (Brassica napus L.) Seedlings by Inhibiting Cd Transporter Genes and Maintaining root Plasma Membrane Integrity. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2023; 111:42. [PMID: 37715785 DOI: 10.1007/s00128-023-03804-7] [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: 02/03/2023] [Accepted: 08/29/2023] [Indexed: 09/18/2023]
Abstract
Se (Selenium) has been reported to be an important protective agent to decreases Cd (Cadmium) induced toxic in plants. However, it remains unclear how Se mitigates the uptake of Cd and increased the resistance to Cd toxicity. Hydroponic experiments were arranged to investigate the changes of physiological properties, root cell membrane integrity and Cd-related transporter genes in rape seedlings. Comparison of the biomass between the addition of Se and the absence of Se under Cd exposure showed that the Cd-induced growth inhibition of rape seedlings was alleviated by Se. Cd decreased the photosynthetic rate (Pn), stomatal conductance (Gs) and photosynthetic pigment content including chlorophyll a, chlorophyll b and carotenoid. However, all these parameters were all significantly improved by Se addition. Moreover, exposure to Se resulted in a decrease in Cd concentration in both shoot and root, ranging from 4.28 to 27.2%. Notably, the application of Se at a concentration of 1 µmol L- 1 exhibited the best performance. Furthermore, Se enhanced cell membrane integrity and reduced superoxide anion levels, thereby contributing to the alleviation of cadmium toxicity in plants. More critically, Se decreased the expression levels of root Cd-related transporter genes BnIRT1, BnHMA2 and BnHMA4 under Cd stress, which are responsible for Cd transport and translocation. These results are important to increase crop growth and reduce Cd load in the food chain from metal toxicity management and agronomical point of view.
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Affiliation(s)
- Yanni Tang
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
- Fujian Provincial Key Lab of Coastal Basin Environment (Fujian Polytechnic Normal Univeristy), Fuqing, 350300, China
| | - Yuanyuan Zhao
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yingjie Zhou
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shiqian Li
- Fujian Provincial Key Lab of Coastal Basin Environment (Fujian Polytechnic Normal Univeristy), Fuqing, 350300, China
| | - Chihhung Wu
- Fujian Provincial Key Laboratory of Resources and Environment Monitoring & Sustainable Management and Utilization, Sanming University, Sanming, 365004, China
| | - Guangyu Shi
- College of Environment Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, China
| | - Chengxiao Hu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiaohu Zhao
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.
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Effects of lime and oxalic acid on antioxidant enzymes and active components of Panax notoginseng under cadmium stress. Sci Rep 2022; 12:11410. [PMID: 35794170 PMCID: PMC9259564 DOI: 10.1038/s41598-022-15280-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 05/06/2022] [Indexed: 11/09/2022] Open
Abstract
Cadmium (Cd) pollution poses potential safety risks for Panax notoginseng cultivation, a medicinal plant in Yunnan. Under exogenous Cd stress, field experiments were conducted to understand the effects of lime (0, 750, 2250 and 3750 kg hm−2) applied and oxalic acid (0, 0.1 and 0.2 mol L−1) leaves sprayed on Cd accumulation, antioxidant system and medicinal components of P. notoginseng. The results showed that Lime and foliar spray of oxalic acid were able to elevate Ca2+ and alleviate Cd2+ toxicity in P. notoginseng under Cd stress. The addition of lime and oxalic acid increased the activities of antioxidant enzymes and alters osmoregulator metabolism. The most significant increase in CAT activities increased by 2.77 folds. And the highest increase of SOD activities was 1.78 folds under the application of oxalic acid. While MDA content decreased by 58.38%. There were very significant correlation with soluble sugar, free amino acid, proline and soluble protein. Lime and oxalic acid were able to increase calcium ions (Ca2+), decrease Cd content and improve the stress resistance of P. notoginseng, while increasing the production of total saponins and flavonoids. Cd content were the lowest, 68.57% lower than controls, and met the standard value (Cd ≤ 0.5 mg kg−1, GB/T 19086-2008). The proportion of SPN was 7.73%, which reached the highest level of all treatments, the flavonoids content increased significantly by 21.74%, which reached the medicinal standard value and optimal yield.
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Azimi F, Oraei M, Gohari G, Panahirad S, Farmarzi A. Chitosan-selenium nanoparticles (Cs-Se NPs) modulate the photosynthesis parameters, antioxidant enzymes activities and essential oils in Dracocephalum moldavica L. under cadmium toxicity stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 167:257-268. [PMID: 34391200 DOI: 10.1016/j.plaphy.2021.08.013] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/24/2021] [Accepted: 08/08/2021] [Indexed: 05/27/2023]
Abstract
In view of damaging impacts of cadmium (Cd) toxicity on various vital processes of plants and strategies for alleviating these effects, selenium (Se) application has been recently achieved great attention. In addition, chitosan (CS) and its nano-form, besides many positive effects on plants, could be considered as an excellent adsorption matrix and a carrier for a wide range of materials like Se with various applications in agricultural sector. For that point, the combination nano-form of Se and CS (CS-Se NPs), using CS as a carrier and control releaser for Se, could enhance Se efficiency particularly at lower doses under stress conditions. Therefore, Se (10 mg L-1), CS (0.1%) and CS-Se NPs (in two concentrations; 5 and 10 mg L-1) were applied on Moldavian balm plant under 0, 2.5 and 5 mg kg-1 Cd-stress conditions. The results demonstrated that mostly Se and CS-Se NPs treatments could lessen negative effects of Cd-stress conditions through enhancing agronomic traits, photosynthetic pigments, chlorophyll fluorescence parameters and SPAD, proline, phenols, antioxidant enzymes activities and some dominant constituents of essential oils and decreasing MDA and H2O2. These encouraging impacts were more significant at lower dose of CS-Se NPs (5 mg L-1) introducing it as the best treatment to ameliorate Moldavian balm performance under Cd-stress conditions. In conclusion, CS-Se NPs could be considered as a supportive approach in plant production mainly under different heavy metal stressful conditions and probably a potential plant growth promoting and stress protecting agent with new outlooks for applying in agricultural sector.
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Affiliation(s)
- Fatemeh Azimi
- Department of Horticultural Sciences, Faculty of Agriculture, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran
| | - Mehdi Oraei
- Department of Horticultural Sciences, Faculty of Agriculture, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran
| | - Gholamreza Gohari
- Department of Horticultural Sciences, Faculty of Agriculture, University of Maragheh, Maragheh, Iran.
| | - Sima Panahirad
- Department of Horticultural Sciences, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Ali Farmarzi
- Department of Agronomy and Plant Breeding, Faculty of Agriculture, Miyaneh Branch, Islamic Azad University, Miyaneh, Iran
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da Silva Cunha LF, de Oliveira VP, do Nascimento AWS, da Silva BRS, Batista BL, Alsahli AA, Lobato AKDS. Leaf application of 24-epibrassinolide mitigates cadmium toxicity in young Eucalyptus urophylla plants by modulating leaf anatomy and gas exchange. PHYSIOLOGIA PLANTARUM 2021; 173:67-87. [PMID: 32767360 DOI: 10.1111/ppl.13182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/25/2020] [Accepted: 08/04/2020] [Indexed: 05/08/2023]
Abstract
Cadmium (Cd2+) soil pollution is a global environmental problem caused by the high toxicity of Cd. 24-Epibrassinolide (EBR) is a biodegradable plant steroid involved in response modulation to biotic and abiotic stresses. The aim of this study was to evaluate if the leaf-application of EBR improves the gas exchange and possible repercussions on leaf anatomy in young Eucalyptus urophylla plants exposed to Cd toxicity. The experiment involved six treatments, which included three Cd concentrations (0, 450, and 900 μM) and two EBR concentrations (0 and 100 nM, described as - EBR and + EBR, respectively). Plants exposed to Cd toxicity suffered decreases in leaf anatomical and gas exchange parameters. However, the plants treated with EBR + 900 μM Cd showed an increase of 46%, 40%, and 54% in the net photosynthetic rate, water-use efficiency, and instantaneous carboxylation efficiency, respectively. The EBR application-induced improvements in gas exchange parameters, causing beneficial effects on the photosynthetic apparatus, mainly the effective quantum yield of photosystem II (PSII) photochemistry and electron transport rate. Furthermore, this steroid mitigated the effect of Cd toxicity on leaf anatomical variables, more specifically palisade and spongy parenchyma, which are intrinsically related to stomatal density, and stimulated the net photosynthetic rate of plants.
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Affiliation(s)
- Luiz Felipe da Silva Cunha
- Núcleo de Pesquisa Vegetal Básica e Aplicada, Universidade Federal Rural da Amazônia. Paragominas, Pará, Brazil
| | - Victor Pereira de Oliveira
- Núcleo de Pesquisa Vegetal Básica e Aplicada, Universidade Federal Rural da Amazônia. Paragominas, Pará, Brazil
| | | | | | - Bruno Lemos Batista
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | - Abdulaziz Abdullah Alsahli
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
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Zhang L, Gao B. Effect of Isosteviol on Wheat Seed Germination and Seedling Growth under Cadmium Stress. PLANTS (BASEL, SWITZERLAND) 2021; 10:1779. [PMID: 34579312 PMCID: PMC8470371 DOI: 10.3390/plants10091779] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/20/2021] [Accepted: 08/24/2021] [Indexed: 11/28/2022]
Abstract
Cadmium (Cd) contamination of agricultural soil has become a serious threat to global food security. The present study highlights the effect of added isosteviol in modulating growth physiology and antioxidant defense systems conferring tolerance against cadmium (Cd) stress in wheat. Wheat growth, chlorophyll content, malondialdehyde (MDA) content of leaves, dehydrogenase activity of root, and antioxidant enzyme activity were determined to get an overview of cellular response in conquering Cd-induced oxidative stress damages. The results indicated that wheat germination was inhibited under Cd2+ concentration at 10 µM. The presence of isosteviol and gibberellic acid (GA) significantly alleviated the inhibitory effect on the growth of wheat seedling under 10 µM Cd2+ stress. Moreover, different concentrations of isosteviol and GA regulated the physiological changes of wheat under Cd stress: more chlorophyll a + b content; less MDA content; and higher dehydrogenase activity of root and antioxidant enzyme activity of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), as compared to Cd alone in wheat seedling. The present study thus suggests a possible role of isosteviol in amelioration of Cd stress by increasing chlorophyll content and root dehydrogenase activity, which also could reduce oxidative damage of the cell membrane by regulating the activities of antioxidant enzymes in wheat seedling.
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Affiliation(s)
- Liang Zhang
- School of Chemistry and Bioengineering, Taizhou College, Nanjing Normal University, Taizhou 225300, China
| | - Bingbing Gao
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211816, China
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Bernard F, Dumez S, Lemière S, Platel A, Nesslany F, Deram A, Vandenbulcke F, Cuny D. Impact of cadmium on forage kale (Brassica oleracea var. viridis cv "Prover") after 3-,10- and 56-day exposure to a Cd-spiked field soil. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:25060-25068. [PMID: 29546517 DOI: 10.1007/s11356-018-1636-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 02/28/2018] [Indexed: 06/08/2023]
Abstract
Cadmium (Cd) is a highly toxic element for living organisms and is widespread in metal-contaminated soils. As organisms which can grow up on these polluted areas, plants have some protection mechanisms against Cd issues. Among the plant kingdom, the Brassicaceae family includes species which are known to be able to tolerate and accumulate Cd in their tissues. In this study, Brassica oleracea var. viridis cv "Prover" was exposed to a range of artificially Cd-contaminated soils (from 2.5 up to 20 mg kg-1) during 3, 10, and 56 days and the effects on life traits, photosynthesis activity, antioxidant enzymatic activities were studied. Metal accumulation was quantified, as well as DNA damage, by means of the comet assay and immunodetection of 8-OHdG levels. Globally, B. oleracea was relatively tolerant to those Cd exposures. However, comet assay and detection of 8-OHdG revealed some DNA damage but which are not significant. According to metal accumulation analysis, B. oleracea var. viridis cv Prover could be a good candidate for alternative growing in contaminated areas.
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Affiliation(s)
- Fabien Bernard
- Université de Lille, 59000, Lille, France
- LGCgE EA 4515, "Fonctionnement des écosystèmes terrestres anthropisés" Cité Scientifique, Univ Lille1, F-59655, Villeneuve d'Ascq, France
- Laboratoire des Sciences Végétales et Fongiques-Université de Lille 2, Faculté des Sciences Pharmaceutiques et Biologiques, EA4483, 59006, Lille Cedex, France
| | - Sylvain Dumez
- Université de Lille, 59000, Lille, France
- Laboratoire des Sciences Végétales et Fongiques-Université de Lille 2, Faculté des Sciences Pharmaceutiques et Biologiques, EA4483, 59006, Lille Cedex, France
| | - Sébastien Lemière
- Université de Lille, 59000, Lille, France
- LGCgE EA 4515, "Fonctionnement des écosystèmes terrestres anthropisés" Cité Scientifique, Univ Lille1, F-59655, Villeneuve d'Ascq, France
| | - Anne Platel
- Université de Lille, 59000, Lille, France
- Laboratoire de Toxicologie Génétique-Institut Pasteur de Lille, EA 4483, 59800, Lille, France
| | - Fabrice Nesslany
- Université de Lille, 59000, Lille, France
- Laboratoire de Toxicologie Génétique-Institut Pasteur de Lille, EA 4483, 59800, Lille, France
| | - Annabelle Deram
- Université de Lille, 59000, Lille, France
- Laboratoire des Sciences Végétales et Fongiques-Université de Lille 2, Faculté des Sciences Pharmaceutiques et Biologiques, EA4483, 59006, Lille Cedex, France
- Faculté de Management de la Santé (ILIS)-Université de Lille 2, EA 4483, 59120, Loos, France
| | - Franck Vandenbulcke
- Université de Lille, 59000, Lille, France.
- LGCgE EA 4515, "Fonctionnement des écosystèmes terrestres anthropisés" Cité Scientifique, Univ Lille1, F-59655, Villeneuve d'Ascq, France.
| | - Damien Cuny
- Université de Lille, 59000, Lille, France
- Laboratoire des Sciences Végétales et Fongiques-Université de Lille 2, Faculté des Sciences Pharmaceutiques et Biologiques, EA4483, 59006, Lille Cedex, France
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Muhammad I, Shalmani A, Ali M, Yang QH, Ahmad H, Li FB. Mechanisms Regulating the Dynamics of Photosynthesis Under Abiotic Stresses. FRONTIERS IN PLANT SCIENCE 2021; 11:615942. [PMID: 33584756 PMCID: PMC7876081 DOI: 10.3389/fpls.2020.615942] [Citation(s) in RCA: 93] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 12/28/2020] [Indexed: 05/02/2023]
Abstract
Photosynthesis sustains plant life on earth and is indispensable for plant growth and development. Factors such as unfavorable environmental conditions, stress regulatory networks, and plant biochemical processes limits the photosynthetic efficiency of plants and thereby threaten food security worldwide. Although numerous physiological approaches have been used to assess the performance of key photosynthetic components and their stress responses, though, these approaches are not extensive enough and do not favor strategic improvement of photosynthesis under abiotic stresses. The decline in photosynthetic capacity of plants due to these stresses is directly associated with reduction in yield. Therefore, a detailed information of the plant responses and better understanding of the photosynthetic machinery could help in developing new crop plants with higher yield even under stressed environments. Interestingly, cracking of signaling and metabolic pathways, identification of some key regulatory elements, characterization of potential genes, and phytohormone responses to abiotic factors have advanced our knowledge related to photosynthesis. However, our understanding of dynamic modulation of photosynthesis under dramatically fluctuating natural environments remains limited. Here, we provide a detailed overview of the research conducted on photosynthesis to date, and highlight the abiotic stress factors (heat, salinity, drought, high light, and heavy metal) that limit the performance of the photosynthetic machinery. Further, we reviewed the role of transcription factor genes and various enzymes involved in the process of photosynthesis under abiotic stresses. Finally, we discussed the recent progress in the field of biodegradable compounds, such as chitosan and humic acid, and the effect of melatonin (bio-stimulant) on photosynthetic activity. Based on our gathered researched data set, the logical concept of photosynthetic regulation under abiotic stresses along with improvement strategies will expand and surely accelerate the development of stress tolerance mechanisms, wider adaptability, higher survival rate, and yield potential of plant species.
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Affiliation(s)
- Izhar Muhammad
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A&F University, Yangling, China
| | - Abdullah Shalmani
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Life Sciences, Northwest A&F University, Yangling, China
| | - Muhammad Ali
- Department of Horticulture, Zhejiang University, Hangzhou, China
| | - Qing-Hua Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
| | - Husain Ahmad
- College of Horticulture, Northwest A&F University, Yangling, China
| | - Feng Bai Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Agronomy, Northwest A&F University, Yangling, China
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Effect of Different Forms of Selenium on the Physiological Response and the Cadmium Uptake by Rice under Cadmium Stress. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17196991. [PMID: 32987814 PMCID: PMC7579289 DOI: 10.3390/ijerph17196991] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 09/19/2020] [Accepted: 09/21/2020] [Indexed: 12/18/2022]
Abstract
Cadmium (Cd) is a pollutant toxic to plants and a potential threat to human health. Selenium (Se), though not essential for plants, has beneficial effects on plants under abiotic stress. A hydroponic experiment was conducted to investigate the impact of different forms of Se (Nano-Se, selenite, selenate, and SeMet) on accumulation, subcellular distribution, and chemical forms of Cd, as well as oxidative stress in rice seedlings. Cd (20 μmol·L−1) treatment significantly decreased biomass accumulation and chlorophyll content. The application of all Se forms, except selenate, mitigated the adverse effects of Cd on growth and chlorophyll content. The application of selenite, Nano-Se, and SeMet decreased root and shoot Cd concentrations as well as root-to-shoot Cd translocation in rice seedlings. Selenate application decreased shoot Cd concentration and root-to-shoot Cd translocation with no effect on root Cd concentration. Accordingly, Se increased the sequestration of Cd in the cell wall and vacuoles and decreased the active chemical form of Cd in rice seedlings. SeMet was the most effective supplement that decreased Cd concentration and enhanced Se concentration in the roots and shoots of rice seedlings. All forms of Se further enhanced catalase (CAT) and glutathione peroxidase (GSH-Px) activities and inhibited MDA accumulation. To conclude, Se influenced Cd accumulation and translocation in rice seedlings by altering the subcellular distribution, chemical forms, and antioxidant defense system under Cd stress. These effects were highly significant with SeMet treatment, probably due to better absorption and utilization by the plant.
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Auobi Amirabad S, Behtash F, Vafaee Y. Selenium mitigates cadmium toxicity by preventing oxidative stress and enhancing photosynthesis and micronutrient availability on radish (Raphanus sativus L.) cv. Cherry Belle. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:12476-12490. [PMID: 31997246 DOI: 10.1007/s11356-020-07751-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 01/14/2020] [Indexed: 05/08/2023]
Abstract
We aimed to examine the effects of selenium on the tolerance of radish plants CV. Cherri Belle under cadmium phytotoxicity. The biomass accumulation was drastically decreased under Cd toxicity and the supplementary Se maintained the biomass acquisition under Cd pressure. The chlorophyll index (SPAD), PSII efficiency (Fv/Fm), and PSII quantum yield (ΦPSII) were declined in response to Cd treatment, while Se nutrition improved these variables in a dose-dependent manner. The highest H2O2 and MDA contents were observed in the plants fed with 10 mg-1 L Cd. The Cd stress resulted in a considerable decline in the activities of GPX, CAT, and APX antioxidant enzymes, while Se supplementation increased their activities in the Cd-treated plants. Based on the mineral analyses, no Cd was traced in the control plants, while the Cd concentration in both roots and leaves of the Cd-stressed radish plants increased with increasing the supplemented Cd levels. Compared with plants solely treated with 10 mg L-1 Cd, Se nutrition declined the Cd absorption in roots and in leaves. The concentration of evaluated micronutrients including Fe, Mn, Cu, and Zn tended to decrease in the Cd-imposed plants in comparison with control plants. Se nutrition of both stressed and non-stressed radish plants increased the concentrations of the studied microelements, except for Zn in which the individual use of Se led to a decrease in the Zn content. Significant positive and negative correlation values were found among the studied traits and the principle component analysis (PCA) biplot and Ward dendrogram confirmed the results of the correlation analysis. Se proved to be efficient in the alleviation of Cd-triggered deleterious effects by improving biomass acquisition, enhancing chlorophyll biosynthesis and fluorescence, and increasing micronutrient uptake in a dose-dependent manner. Furthermore, the Se alleviation mechanism under Cd stress was also connected with the activation of enzymatic antioxidative protection system as well as with decreasing Cd uptake, transport, and distribution in radish leaves. Altogether, our research strongly suggests the implementation of Se in the growth medium to enhance the tolerance of radish plants under Cd stress.
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Affiliation(s)
- Setareh Auobi Amirabad
- Department of Horticultural Science, Faculty of Agriculture, University of Maraghe, Maraghe, 55181-83111, Iran
| | - Farhad Behtash
- Department of Horticultural Science, Faculty of Agriculture, University of Maraghe, Maraghe, 55181-83111, Iran
| | - Yavar Vafaee
- Department of Horticultural Science, Faculty of Agriculture, University of Kurdistan, Sanandaj, 66177-15175, Iran.
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Effect of Molybdenum on Plant Physiology and Cadmium Uptake and Translocation in Rape ( Brassica napus L.) under Different Levels of Cadmium Stress. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17072355. [PMID: 32244320 PMCID: PMC7177489 DOI: 10.3390/ijerph17072355] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 11/16/2022]
Abstract
This study investigated the beneficial effect of molybdenum (Mo) application on rape plants (Brassica napus L.) grown in a soil polluted by cadmium (Cd). A pot experiment was conducted to determine how different concentrations of exogenous Mo (0, 50, 100, and 200 mg/kg) affect plant physiology, biomass, photosynthesis, cation uptake, and Cd translocation and enrichment in rape plants under Cd stress (0.5 and 6.0 mg/kg). Under single Cd treatment, plant physiological and biochemical parameters, biomass parameters, leaf chlorophyll fluorescence parameters, and macroelement uptake of rape plants decreased, while their malonaldehyde content, proline content, non-photochemical quenching coefficient, and Cd uptake significantly increased, compared to those of the control group (p-values < 0.05). High-Cd treatment resulted in much larger changes in these parameters than low-Cd treatment. Following Mo application, the accumulation of malondialdehyde and proline decreased in the leaves of Cd-stressed plants; reversely, the contents of soluble protein, soluble sugar, and chlorophyll, and the activities of superoxide dismutase and glutathione peroxidase, all increased compared to those of single Cd treatment (p-values < 0.05). Exogenous Mo application promoted shoot and root growth of Cd-stressed plants in terms of their length, fresh weight, and dry weight. The negative effect of Cd stress on leaf chlorophyll fluorescence was substantially mitigated by applying Mo. Exogenous Mo also improved the uptake of inorganic cations, especially potassium (K+), in Cd-stressed plants. After Mo application, Cd uptake and accumulation were inhibited and Cd tolerance was enhanced, but Cd translocation was less affected in Cd-stressed plants. The mitigation effect of Mo on Cd stress in rape was achieved through the immobilization of soil Cd to reduce plant uptake, and improvement of plant physiological properties to enhance Cd tolerance. In conclusion, exogenous Mo can effectively reduce Cd toxicity to rape and the optimal Mo concentration was 100 mg/kg under the experimental conditions.
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Kofroňová M, Hrdinová A, Mašková P, Tremlová J, Soudek P, Petrová Š, Pinkas D, Lipavská H. Multi-Component Antioxidative System and Robust Carbohydrate Status, the Essence of Plant Arsenic Tolerance. Antioxidants (Basel) 2020; 9:E283. [PMID: 32230748 PMCID: PMC7222215 DOI: 10.3390/antiox9040283] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/15/2020] [Accepted: 03/17/2020] [Indexed: 01/01/2023] Open
Abstract
Arsenic (As) contaminates the food chain and decreases agricultural production through impairing plants, particularly due to oxidative stress. To better understand the As tolerance mechanisms, two contrasting tobacco genotypes: As-sensitive Nicotiana sylvestris and As-tolerant N.tabacum, cv. 'Wisconsin' were analyzed. The most meaningful differences were found in the carbohydrate status, neglected so far in the As context. In the tolerant genotype, contrary to the sensitive one, net photosynthesis rates and saccharide levels were unaffected by As exposure. Importantly, the total antioxidant capacity was far stronger in the As-tolerant genotype, based on higher antioxidants levels (e.g., phenolics, ascorbate, glutathione) and activities and/or appropriate localizations of antioxidative enzymes, manifested as reverse root/shoot activities in the selected genotypes. Accordingly, malondialdehyde levels, a lipid peroxidation marker, increased only in sensitive tobacco, indicating efficient membrane protection in As-tolerant species. We bring new evidence of the orchestrated action of a broad spectrum of both antioxidant enzymes and molecules essential for As stress coping. For the first time, we propose robust carbohydrate metabolism based on undisturbed photosynthesis to be crucial not only for subsidizing C and energy for defense but also for participating in direct reactive oxygen species (ROS) quenching. The collected data and suggestions can serve as a basis for the selection of plant As phytoremediators or for targeted breeding of tolerant crops.
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Affiliation(s)
- Monika Kofroňová
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 2, 128 44 Prague, Czech Republic (A.H.); (H.L.)
| | - Aneta Hrdinová
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 2, 128 44 Prague, Czech Republic (A.H.); (H.L.)
| | - Petra Mašková
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 2, 128 44 Prague, Czech Republic (A.H.); (H.L.)
| | - Jana Tremlová
- Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Science, Prague 6, Kamýcká, 961/129 Suchdol, Czech Republic;
| | - Petr Soudek
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Rozvojová, 313 Prague 6-Lysolaje, Czech Republic; (P.S.); (Š.P.)
| | - Šárka Petrová
- Laboratory of Plant Biotechnologies, Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Rozvojová, 313 Prague 6-Lysolaje, Czech Republic; (P.S.); (Š.P.)
| | - Dominik Pinkas
- Department of Genetics and Microbiology, Faculty of Science, Charles University, Viničná 5, 2, 128 44 Prague, Czech Republic;
| | - Helena Lipavská
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 2, 128 44 Prague, Czech Republic (A.H.); (H.L.)
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Filek M, Sieprawska A, Kościelniak J, Oklestkova J, Jurczyk B, Telk A, Biesaga-Kościelniak J, Janeczko A. The role of chloroplasts in the oxidative stress that is induced by zearalenone in wheat plants - The functions of 24-epibrassinolide and selenium in the protective mechanisms. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 137:84-92. [PMID: 30769236 DOI: 10.1016/j.plaphy.2019.01.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 01/29/2019] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
This study focused on the idea that the toxic effect of zearalenone (ZEA) and the protective actions of the brassinosteroid - 24-epibrassinolide (EBR) as well as selenium are dependent on its accumulation in chloroplasts to a high degree. These organelles were isolated from the leaves of oxidative stress-sensitive and stress-tolerant wheat cultivars that had been grown from grains that had been incubated in a solution of ZEA (30 μM), Na2SeO4 (Se, 10 μM), EBR (0.1 μM) or in a mixture of ZEA with Se or EBR. Ultra-high performance liquid chromatography techniques indicated that ZEA was adsorbed in higher amounts in the chloroplasts in the sensitive rather than tolerant cultivar. Although the brassinosteroids and Se were also accumulated in the chloroplasts, higher levels were only found in the tolerant cultivar. The application of EBR increased the homocastasterone content, especially in the chloroplasts of the tolerant plant and after the addition of ZEA. The presence of both protectants caused a decrease in the ZEA content in studied organelles and resulted in diminishing of the oxidative stress (i.e. changes in the activity of the antioxidative enzymes). Moreover, a recovery of photosystem II and decrease in the negative impact of ZEN on Hsp90 transcript accumulation was observed in plants.
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Affiliation(s)
- Maria Filek
- Polish Academy of Sciences, The Franciszek Górski Institute of Plant Physiology, Niezapominajek 21, 30-239, Kraków, Poland; Institute of Biology, Pedagogical University, Podchorążych 2, 30-084, Kraków, Poland
| | - Apolonia Sieprawska
- Institute of Biology, Pedagogical University, Podchorążych 2, 30-084, Kraków, Poland
| | - Janusz Kościelniak
- Faculty of Agriculture and Economics, University of Agriculture in Kraków, Podłużna 3, 30-239, Kraków, Poland
| | - Jana Oklestkova
- Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Institute of Experimental Botany ASCR & Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Barbara Jurczyk
- Faculty of Agriculture and Economics, University of Agriculture in Kraków, Podłużna 3, 30-239, Kraków, Poland
| | - Anna Telk
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Jolanta Biesaga-Kościelniak
- Polish Academy of Sciences, The Franciszek Górski Institute of Plant Physiology, Niezapominajek 21, 30-239, Kraków, Poland
| | - Anna Janeczko
- Polish Academy of Sciences, The Franciszek Górski Institute of Plant Physiology, Niezapominajek 21, 30-239, Kraków, Poland.
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Liu Z, Wang Q, Zou D, Yang Y. Effects of selenite on growth, photosynthesis and antioxidant system in seaweeds, Ulva fasciata (Chlorophyta) and Gracilaria lemaneiformis (Rhodophyta). ALGAL RES 2018. [DOI: 10.1016/j.algal.2018.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wu Z, Yin X, Bañuelos GS, Lin ZQ, Liu Y, Li M, Yuan L. Indications of Selenium Protection against Cadmium and Lead Toxicity in Oilseed Rape ( Brassica napus L.). FRONTIERS IN PLANT SCIENCE 2016; 7:1875. [PMID: 28018407 PMCID: PMC5156728 DOI: 10.3389/fpls.2016.01875] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Accepted: 11/28/2016] [Indexed: 05/03/2023]
Abstract
The present study investigated the beneficial role of selenium (Se) in protecting oilseed rape (Brassica napus L.) plants from cadmium (Cd+2) and lead (Pb+2) toxicity. Exogenous Se markedly reduced Cd and Pb concentration in both roots and shoots. Supplementation of the medium with Se (5, 10, and 15 mg kg-1) alleviated the negative effect of Cd and Pb on growth and led to a decrease in oxidative damages caused by Cd and Pb. Furthermore, Se-enhanced superoxide free radicals ([Formula: see text]), hydrogen peroxide (H2O2), and lipid peroxidation, as indicated by malondialdehyde accumulation, but decreased superoxide dismutase and glutathione peroxidase activities. Meanwhile, the presence of Cd and Pb in the medium affected Se speciation in shoots. The results suggest that Se could alleviate Cd and Pb toxicity by preventing oxidative stress in oilseed rape plant.
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Affiliation(s)
- Zhilin Wu
- Key Laboratory of Agri-Food Safety of Anhui Province, Scientific Observing and Experimental Station of Agricultural Environment of the Ministry of Agriculture – Laboratory of Quality and Safty Risk Assessment for Agricultural Products on Storage and Preservation of the Ministry of Agriculture, School of Plant Protection – School of Resources and Environment, Anhui Agricultural UniversityHefei, China
- School of Earth and Space Sciences, University of Science and Technology of ChinaHefei, China
- Jiangsu Bio-Engineering Research Centre of Selenium, Suzhou Institute for Advanced Study, University of Science and Technology of ChinaSuzhou, China
| | - Xuebin Yin
- School of Earth and Space Sciences, University of Science and Technology of ChinaHefei, China
- Jiangsu Bio-Engineering Research Centre of Selenium, Suzhou Institute for Advanced Study, University of Science and Technology of ChinaSuzhou, China
- Institute of Advanced Technology, University of Science and Technology of ChinaHefei, China
| | - Gary S. Bañuelos
- San Joaquin Valley Agricultural Sciences Center, United States Department of Agriculture – Agricultural Research Service, ParlierCA, USA
| | - Zhi-Qing Lin
- Environmental Sciences Program and Department of Biological Sciences, Southern Illinois University Edwardsville, EdwardsvilleIL, USA
| | - Ying Liu
- School of Earth and Space Sciences, University of Science and Technology of ChinaHefei, China
- Jiangsu Bio-Engineering Research Centre of Selenium, Suzhou Institute for Advanced Study, University of Science and Technology of ChinaSuzhou, China
- Institute of Advanced Technology, University of Science and Technology of ChinaHefei, China
| | - Miao Li
- Key Laboratory of Agri-Food Safety of Anhui Province, Scientific Observing and Experimental Station of Agricultural Environment of the Ministry of Agriculture – Laboratory of Quality and Safty Risk Assessment for Agricultural Products on Storage and Preservation of the Ministry of Agriculture, School of Plant Protection – School of Resources and Environment, Anhui Agricultural UniversityHefei, China
- Institute of Advanced Technology, University of Science and Technology of ChinaHefei, China
- The Northwest of Anhui Province Station for Integrative Agriculture, Research Institute for New Rural Development, Anhui Agricultural UniversityHefei, China
| | - Linxi Yuan
- School of Earth and Space Sciences, University of Science and Technology of ChinaHefei, China
- Jiangsu Bio-Engineering Research Centre of Selenium, Suzhou Institute for Advanced Study, University of Science and Technology of ChinaSuzhou, China
- Institute of Advanced Technology, University of Science and Technology of ChinaHefei, China
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Filek M, Łabanowska M, Kurdziel M, Wesełucha-Birczyńska A, Bednarska-Kozakiewicz E. Structural and biochemical response of chloroplasts in tolerant and sensitive barley genotypes to drought stress. JOURNAL OF PLANT PHYSIOLOGY 2016; 207:61-72. [PMID: 27835766 DOI: 10.1016/j.jplph.2016.09.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 09/29/2016] [Accepted: 09/29/2016] [Indexed: 06/06/2023]
Abstract
The aim of this research was to characterize the changes of structural organization of chloroplasts of sensitive (Maresi) and tolerant (Cam/B1) barley genotypes upon soil drought (10days), which was applied in two stages of plant growth, i.e. seedlings and flag leaves. The electron paramagnetic resonance (EPR) technique was used for the determination of changes in the concentration and nature of long-lived radicals and metal ions (Mn, Fe), measured directly in the structures of fresh leaves, occurring after stress treatment. Stronger variations of EPR parameters were found after drought stress application in the flag-leaf phase and for sensitive genotype. Chloroplasts of Cam/B1 were characterized by a larger surface area and less degradation of their structure during drought stress in comparison to Maresi. The data obtained from Raman spectra showed that better stress tolerance of the genotype was accompanied by greater accumulation of carotenoids in chloroplasts and was correlated with an increase in carotenoid radicals. The increase of the value of the electrokinetic potential (relative to control), which was slightly larger for the chloroplasts of Maresi than of Cam/B1, indicated the chemical reconstruction of the membrane leading to a reduction of their polarity during drought action.
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Affiliation(s)
- Maria Filek
- Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239 Cracow, Poland; Institute of Biology, Pedagogical University, Podchorążych 2, 30-084 Cracow, Poland
| | - Maria Łabanowska
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Cracow, Poland
| | - Magdalena Kurdziel
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Cracow, Poland.
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Lysenko EA, Klaus AA, Pshybytko NL, Kusnetsov VV. Cadmium accumulation in chloroplasts and its impact on chloroplastic processes in barley and maize. PHOTOSYNTHESIS RESEARCH 2015; 125:291-303. [PMID: 25315190 DOI: 10.1007/s11120-014-0047-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 09/30/2014] [Indexed: 06/04/2023]
Abstract
Data on cadmium accumulation in chloroplasts of terrestrial plants are scarce and contradictory. We introduced CdSO4 in hydroponic media to the final concentrations 80 and 250 μM and studied the accumulation of Cd in chloroplasts of Hordeum vulgare and Zea mays. Barley accumulated more Cd in the chloroplasts as compared to maize, whereas in the leaves cadmium accumulation was higher in maize. The cadmium content in the chloroplasts of two species varied from 49 to 171 ng Cd/mg chlorophyll, which corresponds to one Cd atom per 728-2,540 chlorophyll molecules. Therefore, Mg(2+) can be substituted by Cd(2+) in a negligible amount of antenna chlorophylls only. The percentage of chloroplastic cadmium can be estimated as 0.21-1.32 % of all the Cd in a leaf. Photochemistry (F v/F m, ΦPSII, qP) was not influenced by Cd. Non-photochemical quenching of chlorophyll-excited state (NPQ) was greatly reduced in barley but not in maize. The decrease in NPQ was due to its fast relaxing component; the slow relaxing component rose slightly. In chloroplasts, Cd did not affect mRNA levels, but content of some photosynthetic proteins was reduced: slightly in the leaves of barley and heavily in the leaves of maize. In all analyzed C3-species, the effect of Cd on the content of photosynthetic proteins was mild or absent. This is most likely the first evidence of severe reduction of photosynthetic proteins in leaves of a Cd-treated C4-plant.
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Affiliation(s)
- Eugene A Lysenko
- Timiryazev Institute of Plant Physiology, RAS, ul. Botanicheskaya 35, 127276, Moscow, Russia,
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Sieprawska A, Kornaś A, Filek M. Involvement of Selenium in Protective Mechanisms of Plants under Environmental Stress Conditions – Review. ACTA ACUST UNITED AC 2015. [DOI: 10.1515/abcsb-2015-0014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractIn recent years there has been growing interest in selenium (Se) as an important micronutrient not only for animals and humans but also for plants. In particular, its protective effect in plants exposed to stress conditions has been suggested. In spite of many studies, the mechanism of Se action is not fully understood. In this review, possible ways of interaction of Se with stress factors leading to optimal growth and development of plants are presented. As the majority of experiments have focused on the effects of Se application under stress conditions induced by heavy metals, special attention is paid to the results obtained in such studies. Changes of physiological and biochemical properties of plant cells, with particular regard to the influence of Se on the activation of enzymatic and non-enzymatic antioxidants under this stress, are summarized. Experiments in which Se was used in some other environmental stresses (drought, UV, cold and high temperature) are also cited. On the basis of the presented literature it is suggested that a positive effect of Se depends on both its doses and on chosen plant genotypes and is mainly connected with activation of antioxidative defense in plant cells.
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Qing X, Zhao X, Hu C, Wang P, Zhang Y, Zhang X, Wang P, Shi H, Jia F, Qu C. Selenium alleviates chromium toxicity by preventing oxidative stress in cabbage (Brassica campestris L. ssp. Pekinensis) leaves. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 114:179-89. [PMID: 25638524 DOI: 10.1016/j.ecoenv.2015.01.026] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Revised: 01/21/2015] [Accepted: 01/22/2015] [Indexed: 05/11/2023]
Abstract
The beneficial role of selenium (Se) in alleviation of chromium (Cr)-induced oxidative stress is well established. However, little is known about the underlying mechanism. The impacts of exogenous Se (0.1mg/L) on Cr(1mg/L)-induced oxidative stress and antioxidant systems in leaves of cabbage (Brassica campestris L. ssp. Pekinensis) were investigated by using cellular and biochemical approaches. The results showed that supplementation of the medium with Se was effective in reducing Cr-induced increased levels of lipid peroxides and superoxide free radicals (O(-)2(·)), as well as increasing activities of superoxide dismutase (SOD) and peroxidase (POD). Meanwhile, 1mg/L Cr induced loss of plasma membrane integrity, growth inhibition, as well as ultrastructural changes of leaves were significantly reversed due to Se supplementation in the medium. In addition, Se application significantly altered the subcellular distribution of Cr which transported from mitochondria, nucleus and the cell-wall material to the soluble fraction and chloroplasts. However, Se application did no significant alteration of Cr effects on osmotic adjustment accumulating products. The study suggested that Se is able to protect leaves of cabbage against Cr toxicity by alleviation of Cr induced oxidative stress, and re-distribution of Cr in the subcellular of the leaf. Furthermore, free radicals, lipid peroxides, activity of SOD and POD, and subcellular distribution of Cr can be considered the efficient biomarkers to indicate the efficiency of Se to detoxification Cr.
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Affiliation(s)
- Xuejiao Qing
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiaohu Zhao
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Key Laboratory of Pollution Processes and Environmental Criteria (Nankai University), Ministry of Education, Tianjin 300071, China; Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture, Guanghou 510640, China.
| | - Chengxiao Hu
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Peng Wang
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Ying Zhang
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Xuan Zhang
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Pengcheng Wang
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Hanzhi Shi
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Fen Jia
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Chanjuan Qu
- Hubei Provincial Engineering Laboratory for New-type Fertilizer, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
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Saenen E, Horemans N, Vanhoudt N, Vandenhove H, Biermans G, Van Hees M, Wannijn J, Vangronsveld J, Cuypers A. The pH strongly influences the uranium-induced effects on the photosynthetic apparatus of Arabidopsis thaliana plants. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 82:254-261. [PMID: 25014646 DOI: 10.1016/j.plaphy.2014.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 06/18/2014] [Indexed: 06/03/2023]
Abstract
To study the impact of environmental uranium (U) contamination, effects should be analysed at different environmentally relevant pH levels as the speciation of U, and hence its toxicity, is strongly dependent on the pH. As photosynthesis is a major energy producing process in plants intimately connected to plant growth and known to be susceptible to metal stress, the effects of different U concentrations on photosynthesis in 18-day-old Arabidopsis thaliana (Columbia ecotype) are investigated at two contrasting pH levels, pH 4.5 and pH 7.5. At pH 4.5, U is highly taken up by the roots but is poorly translocated to the shoots, while at pH 7.5, less U is taken up but the translocation is higher. The lower U concentrations in the shoots at pH 4.5 are accompanied by a more reduced leaf growth as compared to pH 7.5. In addition, U does not influence the photosynthetic machinery at pH 7.5, while an optimization of the photosynthesis takes place after U exposure at pH 4.5. As such, more of the absorbed quanta are effectively used for photosynthesis accompanied by a decreased non-photochemical quenching and an increased electron transport rate. Since the enhanced photosynthesis at pH 4.5 is accompanied by a decreased growth, we suggest that the energy produced during photosynthesis is used for defence reactions against U-induced oxidative stress rather than for growth. As such, a high discrepancy was observed between the two pH levels, with an optimized photosynthetic apparatus at pH 4.5 and almost no effects at pH 7.5.
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Affiliation(s)
- Eline Saenen
- Belgian Nuclear Research Centre (SCK•CEN), Biosphere Impact Studies, Boeretang 200, 2400 Mol, Belgium; Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, 3590 Diepenbeek, Belgium.
| | - Nele Horemans
- Belgian Nuclear Research Centre (SCK•CEN), Biosphere Impact Studies, Boeretang 200, 2400 Mol, Belgium
| | - Nathalie Vanhoudt
- Belgian Nuclear Research Centre (SCK•CEN), Biosphere Impact Studies, Boeretang 200, 2400 Mol, Belgium
| | - Hildegarde Vandenhove
- Belgian Nuclear Research Centre (SCK•CEN), Biosphere Impact Studies, Boeretang 200, 2400 Mol, Belgium
| | - Geert Biermans
- Belgian Nuclear Research Centre (SCK•CEN), Biosphere Impact Studies, Boeretang 200, 2400 Mol, Belgium; Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - May Van Hees
- Belgian Nuclear Research Centre (SCK•CEN), Biosphere Impact Studies, Boeretang 200, 2400 Mol, Belgium
| | - Jean Wannijn
- Belgian Nuclear Research Centre (SCK•CEN), Biosphere Impact Studies, Boeretang 200, 2400 Mol, Belgium
| | - Jaco Vangronsveld
- Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, 3590 Diepenbeek, Belgium
| | - Ann Cuypers
- Hasselt University, Centre for Environmental Sciences, Agoralaan Building D, 3590 Diepenbeek, Belgium
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Physicochemical aspects of reaction of ozone with galactolipid and galactolipid-tocopherol layers. J Membr Biol 2014; 247:639-49. [PMID: 24862871 PMCID: PMC4052016 DOI: 10.1007/s00232-014-9681-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Accepted: 05/10/2014] [Indexed: 12/05/2022]
Abstract
The impact of reaction of galactolipids with ozone on the physicochemical properties of their monolayers was examined. In Megli and Russo (Biochim Biophys Acta, 1778:143–152, 2008), Cwiklik and Jungwirth (Chem Phys Lett, 486:99–103, 2010), Jurkiewicz et al. (Biochim Biophys Acta, 1818:2388–2402, 2012), Khabiri et al. (Chem Phys Lett, 519:93–99, 2012), and Conte et al. (Biochim Biophys Acta, 1828:510–517, 2013), the properties of layers formed from model mixtures composed of chosen lipids and selected oxidation products were studied, whereas in this work, question was raised as to how the oxidation reactions taking place in situ affect the physical properties of the galactolipid layers. So, set experiment should take into account the effect of all reaction products. The mechanical characteristics of monolayers of monogalactosyldiacyl-glycerol (MGDG) and digalactosyldiacylglycerol (DGDG) were determined by Langmuir trough technique, and the electrical properties of liposomes formed from these lipids by measuring their electrophoretic mobility. Considerable loss of galactolipid molecules forming monolayers was found at ozone concentrations (in aqueous medium) higher than 0.1 ppm with a stronger effect measured for MGDG. That goes along with the greater amounts of MDA found in the extracts of oxidized MGDG films compared with DGDG. Based on this, it was concluded that an additional galactose group present in DGDG molecules acts protectively under oxidative conditions. The surface tension of the solutions (of small volume) contacting the oxidized galactolipids films was significantly reduced, indicating the presence of soluble in polar media, surface active reaction products. The presence of α-tocopherol in mixtures with tested galactolipids at a molar ratio of lipid to tocopherol equal to 1.7:1 caused some inhibition of lipid oxidation, reducing the decrease of amount of lipid particles forming the monolayer. Here, also protective effect of α-tocopherol was greater for the MGDG compared to DGDG.
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Łabanowska M, Kurdziel M, Bidzińska E, Wesełucha-Birczyńska A, Pawcenis D, Łojewski T, Fortuna T, Pietrzyk S, Przetaczek-Rożnowska I. Influence of starch oxidation and phosphorylation on thermal generation of carbohydrate radicals studied by electron paramagnetic resonance. STARCH-STARKE 2013. [DOI: 10.1002/star.201200164] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Labanowska M, Filek M, Kurdziel M, Bidzińska E, Miszalski Z, Hartikainen H. EPR spectroscopy as a tool for investigation of differences in radical status in wheat plants of various tolerances to osmotic stress induced by NaCl and PEG-treatment. JOURNAL OF PLANT PHYSIOLOGY 2013; 170:136-145. [PMID: 23141807 DOI: 10.1016/j.jplph.2012.09.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 08/17/2012] [Accepted: 09/11/2012] [Indexed: 06/01/2023]
Abstract
Two kinds of wheat genotypes with different tolerance to osmotic stress (NaCl and PEG-treatment) were investigated with biochemical analyses, including the measurements of total antioxidant capacity, 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging activity, reducing power and starch content. The results were compared with electron paramagnetic resonance (EPR) data concerning the nature and amounts of stable long lived radicals present in the control and stressed plants. In addition, the changes in manganese content upon stress conditions were monitored. Different mechanisms of protection against PEG stress in sensitive and tolerant wheat genotypes were postulated. In sensitive genotypes, electrons were created in excess in stress conditions, and were stabilized by polysaccharide molecules, whereas in tolerant genotypes, protection by antioxidants dominated. Moreover, the quinone-semiquinone balance shifted towards semiquinone, which became the place of electron trapping. NaCl-treatment yielded significant effects mainly in sensitive genotypes and was connected with the changes of water structure, leading to inactivation of reactive oxygen species by water molecules.
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Affiliation(s)
- Maria Labanowska
- Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland.
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Thermal effects on the structure of cereal starches. EPR and Raman spectroscopy studies. Carbohydr Polym 2013; 92:842-8. [DOI: 10.1016/j.carbpol.2012.09.087] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Revised: 09/20/2012] [Accepted: 09/29/2012] [Indexed: 11/30/2022]
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Łabanowska M, Filek M, Kurdziel M, Bednarska E, Dłubacz A, Hartikainen H. Electron paramagnetic resonance (EPR) spectroscopy characterization of wheat grains from plants of different water stress tolerance. JOURNAL OF PLANT PHYSIOLOGY 2012; 169:1234-1242. [PMID: 22840996 DOI: 10.1016/j.jplph.2012.04.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Revised: 04/04/2012] [Accepted: 04/05/2012] [Indexed: 06/01/2023]
Abstract
Grains of five genotypes of wheat (four Polish and one Finnish), differing in their tolerance to drought stress were chosen for this investigation. Electron paramagnetic resonance spectroscopy allowed observation of transition metal ions (Mn, Fe, Cu) and different types of stable radicals, including semiquinone centers, present in seed coats, as well as several types of carbohydrate radicals found mainly in the inner parts of grains. The content of paramagnetic metal centers was higher in sensitive genotypes (Radunia, Raweta) than in tolerant ones (Parabola, Nawra), whereas the Finnish genotype (Manu) exhibited intermediate amounts. Similarly, the concentrations of both types of radicals, carbohydrates and semiquinone were significantly higher in the grains originating from more sensitive wheat genotypes. The nature of carbohydrate radicals and their concentrations were confronted with the kinds and amounts of sugars found by the biochemical analyses and microscopy observations. It is suggested that some long lived radicals (semiquinone and starch radicals) occurring in grains could be indicators of stress resistance of wheat plants.
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Łabanowska M, Filek M, Kościelniak J, Kurdziel M, Kuliś E, Hartikainen H. The effects of short-term selenium stress on Polish and Finnish wheat seedlings-EPR, enzymatic and fluorescence studies. JOURNAL OF PLANT PHYSIOLOGY 2012; 169:275-84. [PMID: 22153751 DOI: 10.1016/j.jplph.2011.10.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Revised: 10/12/2011] [Accepted: 10/18/2011] [Indexed: 05/07/2023]
Abstract
Biochemical analyses of antioxidant content were compared with measurements of fluorescence and electron paramagnetic resonance (EPR) to examine the alteration of radicals in wheat seedlings exposed to 2 days of selenium stress. Two genotypes of Polish and one of Finnish wheat, differing in their tolerance to long-term stress treatment, were cultured under hydroponic conditions to achieve the phase of 3-leave seedlings. Afterwards, selenium (sodium selenate, 100 μM concentration) was added to the media. After Se-treatment, all varieties showed an increase in carbohydrates (soluble and starch), ascorbate and glutathione content in comparison to non-stressed plants. These changes were more visible in Finnish wheat. On the basis of lipid peroxidation measurements, Finnish wheat was recognized as the genotype more sensitive to short-term Se-stress than the Polish varieties. The antioxidant enzyme activities (superoxide dismutase, ascorbate peroxidase and glutathione reductase) increased in Polish genotypes, whereas they decreased in Finnish wheat plants cultured on Se media. The action of reactive oxygen species in short-term action of Se stress was confirmed by the reduction of PSII and PSI system activities (measured by fluorescence parameters and EPR, respectively). EPR studies showed changes in redox status (especially connected with Mn(II)/Mn(III), and semiquinone/quinone ratios) in wheat cell after Se treatment. The involvement of the carbohydrate molecules as electron traps in production of long-lived radicals is postulated.
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