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Sharma A, Soares C, Sousa B, Martins M, Kumar V, Shahzad B, Sidhu GPS, Bali AS, Asgher M, Bhardwaj R, Thukral AK, Fidalgo F, Zheng B. Nitric oxide-mediated regulation of oxidative stress in plants under metal stress: a review on molecular and biochemical aspects. PHYSIOLOGIA PLANTARUM 2020; 168:318-344. [PMID: 31240720 DOI: 10.1111/ppl.13004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 05/07/2023]
Abstract
Given their sessile nature, plants continuously face unfavorable conditions throughout their life cycle, including water scarcity, extreme temperatures and soil pollution. Among all, metal(loid)s are one of the main classes of contaminants worldwide, posing a serious threat to plant growth and development. When in excess, metals which include both essential and non-essential elements, quickly become phytotoxic, inducing the occurrence of oxidative stress. In this way, in order to ensure food production and safety, attempts to enhance plant tolerance to metal(loid)s are urgently needed. Nitric oxide (NO) is recognized as a signaling molecule, highly involved in multiple physiological events, like the response of plants to abiotic stress. Thus, substantial efforts have been made to assess NO potential in alleviating metal-induced oxidative stress in plants. In this review, an updated overview of NO-mediated protection against metal toxicity is provided. After carefully reviewing NO biosynthetic pathways, focus was given to the interaction between NO and the redox homeostasis followed by photosynthetic performance of plants under metal excess.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Cristiano Soares
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Porto, 4169-007, Portugal
| | - Bruno Sousa
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Porto, 4169-007, Portugal
| | - Maria Martins
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Porto, 4169-007, Portugal
| | - Vinod Kumar
- Department of Botany, DAV University, Jalandhar, 144012, India
| | - Babar Shahzad
- School of Land and Food, University of Tasmania, Hobart, TAS, Australia
| | - Gagan P S Sidhu
- Department of Environment Education, Government College of Commerce and Business Administration, Chandigarh, 160047, India
| | - Aditi S Bali
- Department of Botany, M.C.M.D.A.V. College for Women, Chandigarh, India
| | - Mohd Asgher
- Plant Physiology and Biochemistry Laboratory, Department of Botany, School of Biosciences and Biotechnology, Baba Ghulam Shah Badshah University, Rajouri, 185234, India
| | - Renu Bhardwaj
- Plant Stress Physiology Laboratory, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Ashwani K Thukral
- Plant Stress Physiology Laboratory, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Fernanda Fidalgo
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Porto, 4169-007, Portugal
| | - Bingsong Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
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Terrón-Camero LC, Peláez-Vico MÁ, Del-Val C, Sandalio LM, Romero-Puertas MC. Role of nitric oxide in plant responses to heavy metal stress: exogenous application versus endogenous production. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:4477-4488. [PMID: 31125416 DOI: 10.1093/jxb/erz184] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 04/12/2019] [Indexed: 05/23/2023]
Abstract
Anthropogenic activities, such as industrial processes, mining, and agriculture, lead to an increase in heavy metal concentrations in soil, water, and air. Given their stability in the environment, heavy metals are difficult to eliminate and can constitute a human health risk by entering the food chain through uptake by crop plants. An excess of heavy metals is toxic for plants, which have various mechanisms to prevent their accumulation. However, once metals enter the plant, oxidative damage sometimes occurs, which can lead to plant death. Initial production of nitric oxide (NO), which may play a role in plant perception, signalling, and stress acclimation, has been shown to protect against heavy metals. Very little is known about NO-dependent mechanisms downstream from signalling pathways in plant responses to heavy metal stress. In this review, using bioinformatic techniques, we analyse studies of the involvement of NO in plant responses to heavy metal stress, its possible role as a cytoprotective molecule, and its relationship with reactive oxygen species. Some conclusions are drawn and future research perspectives are outlined to further elucidate the signalling mechanisms underlying the role of NO in plant responses to heavy metal stress.
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Affiliation(s)
- Laura C Terrón-Camero
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Apartado, Granada, Spain
| | - M Ángeles Peláez-Vico
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Apartado, Granada, Spain
| | - Coral Del-Val
- Department of Artificial Intelligence, University of Granada, Granada, Spain
- Andalusian Data Science and Computational Intelligence Research Institute, University of Granada, Granada, Spain
| | - Luisa M Sandalio
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Apartado, Granada, Spain
| | - María C Romero-Puertas
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, Apartado, Granada, Spain
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Bahmani R, Kim D, Na J, Hwang S. Expression of the Tobacco Non-symbiotic Class 1 Hemoglobin Gene Hb1 Reduces Cadmium Levels by Modulating Cd Transporter Expression Through Decreasing Nitric Oxide and ROS Level in Arabidopsis. FRONTIERS IN PLANT SCIENCE 2019; 10:201. [PMID: 30853969 PMCID: PMC6396062 DOI: 10.3389/fpls.2019.00201] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 02/06/2019] [Indexed: 05/03/2023]
Abstract
Hemoglobin (Hb) proteins are ubiquitous in plants, and non-symbiotic class 1 hemoglobin (Hb1) is involved in various biotic and abiotic stress responses. Here, the expression of the tobacco (Nicotiana tabacum) hemoglobin gene NtHb1 in Arabidopsis (Arabidopsis thaliana) showed higher cadmium (Cd) tolerance and lower accumulations of Cd, nitric oxide (NO), and reactive oxygen species (ROS) like hydrogen peroxide (H2O2). NtHb1-expressing Arabidopsis exhibited a reduced induction of NO levels in response to Cd, suggesting scavenging of NO by Hb1. In addition, transgenic plants had reduced accumulation of ROS and increased activities of antioxidative enzymes (catalase, superoxide dismutase, and glutathione reductase) in response to Cd. While the expression of the Cd exporters ABC transporter (PDR8) and Ca2+/H+ exchangers (CAXs) was increased, that of the Cd importers iron responsive transporter 1 (IRT1) and P-type 2B Ca2+ ATPase (ACA10) was reduced in response to Cd. When Col-0 plants were treated with the NO donor sodium nitroprusside (SNP) and H2O2, the expression pattern of Cd transporters (PDR8, CAX3, IRT1, and ACA10) was reversed, suggesting that NtHb1 expression decreased the Cd level by regulating the expression of Cd transporters via decreased NO and ROS. Correspondingly, NtHb1-expressing Arabidopsis showed increased Cd export. In summary, the expression of NtHb1 reduces Cd levels by regulating Cd transporter expression via decreased NO and ROS levels in Arabidopsis.
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Affiliation(s)
- Ramin Bahmani
- Department of Molecular Biology, Sejong University, Seoul, South Korea
- Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, South Korea
- Plant Engineering Research Institute, Sejong University, Seoul, South Korea
| | - DongGwan Kim
- Department of Molecular Biology, Sejong University, Seoul, South Korea
- Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, South Korea
- Plant Engineering Research Institute, Sejong University, Seoul, South Korea
| | - JongDuk Na
- Department of Molecular Biology, Sejong University, Seoul, South Korea
| | - Seongbin Hwang
- Department of Molecular Biology, Sejong University, Seoul, South Korea
- Department of Bioindustry and Bioresource Engineering, Sejong University, Seoul, South Korea
- Plant Engineering Research Institute, Sejong University, Seoul, South Korea
- *Correspondence: Seongbin Hwang,
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Chmielowska-Bąk J, Gzyl J, Rucińska-Sobkowiak R, Arasimowicz-Jelonek M, Deckert J. The new insights into cadmium sensing. FRONTIERS IN PLANT SCIENCE 2014; 5:245. [PMID: 24917871 PMCID: PMC4042028 DOI: 10.3389/fpls.2014.00245] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Accepted: 05/14/2014] [Indexed: 05/18/2023]
Abstract
Cadmium (Cd) is non-essential heavy metal, which in excess, exhibits deleterious effects to the most of the organisms. Mobilization of defense mechanisms against this toxic agent requires rapid activation of signaling pathways. The article presents recent advances in the research concerning cadmium signal transduction in plants. New insights into the involvement of reactive oxygen species (ROS), nitric oxide (NO), plant growth regulators, and Cd-induced protein modifications are reviewed. Moreover, the role of recently recognized Cd-associated signal elements, including micro RNAs and several cis- and trans-acting elements is discussed.
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Affiliation(s)
| | | | | | | | - Joanna Deckert
- Department of Plant Ecophysiology, Faculty of Biology, Institute of Experimental Biology, Adam Mickiewicz UniversityPoznań, Poland
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