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Wang S, Cheng H, Wei Y. Supplemental Silicon and Boron Alleviates Aluminum-Induced Oxidative Damage in Soybean Roots. PLANTS (BASEL, SWITZERLAND) 2024; 13:821. [PMID: 38592832 PMCID: PMC10975118 DOI: 10.3390/plants13060821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/09/2024] [Accepted: 03/10/2024] [Indexed: 04/11/2024]
Abstract
Aluminum (Al) toxicity in acidic soils is a major abiotic stress that negatively impacts plant growth and development. The toxic effects of Al manifest primarily in the root system, leading to inhibited root elongation and functionality, which impairs the above-ground organs of the plant. Recent research has greatly improved our understanding of the applications of small molecule compounds in alleviating Al toxicity. This study aimed to investigate the role of boron (B), silicon (Si), and their combination in alleviating Al toxicity in soybeans. The results revealed that the combined application significantly improved the biomass and length of soybean roots exposed to Al toxicity compared to B and Si treatments alone. Our results also indicated that Al toxicity causes programmed cell death (PCD) in soybean roots, while B, Si, and their combination all alleviated the PCD induced by Al toxicity. The oxidative damage induced by Al toxicity was noticeably alleviated, as evidenced by lower MAD and H2O2 accumulation in the soybean roots treated with the B and Si combination. Moreover, B, Si, and combined B and Si significantly enhanced plant antioxidant systems by up-regulating antioxidant enzymes including CAT, POD, APX, and SOD. Overall, supplementation with B, Si, and their combination was found to alleviate oxidative damage and reduce PCD caused by Al toxicity, which may be one of the mechanisms by which they alleviate root growth inhibition due to Al toxicity. Our results suggest that supplementation with B, Si, and their combination may be an effective strategy to improve soybean growth and productivity against Al toxicity.
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Affiliation(s)
- Shuwei Wang
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.W.); (H.C.)
| | - Haijing Cheng
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.W.); (H.C.)
| | - Yunmin Wei
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.W.); (H.C.)
- College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
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Zhao S, Chen J, Cao S, Wang H, Chen H, Wei Y, Chen Y, Shao X, Xu F. The regulation of Cytochrome f by mannose treatment in broccoli and its relationship with programmed cell death in tobacco BY-2 cells. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 208:108480. [PMID: 38437751 DOI: 10.1016/j.plaphy.2024.108480] [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: 11/07/2023] [Revised: 02/25/2024] [Accepted: 02/28/2024] [Indexed: 03/06/2024]
Abstract
It is well established that programmed cell death (PCD) occurred in broccoli during postharvest senescence, but no studies have been conducted on the regulation of broccoli cytochrome f by mannose treatment and its relationship with PCD. In this study, we treated broccoli buds with mannose to investigate the changes in color, total chlorophyll content, gene expression related to chlorophyll metabolism, chloroplast structure, and cytochrome f determination during postharvest storage. In addition, to investigate the effect of cytochrome f on PCD, we extracted cytochrome f from broccoli and treated Nicotiana tabacum L. cv Bright Yellow 2 (BY-2) cells with extracted cytochrome f from broccoli at various concentrations. The results showed that cytochrome f can induce PCD in tobacco BY-2 cells, as evidenced by altered cell morphology, nuclear chromatin disintegration, DNA degradation, decreased cell viability, and increased caspase-3-like protease production. Taken together, our study indicated that mannose could effectively delay senescence of postharvest broccoli by inhibiting the expression of gene encoding cytochrome f which could induce PCD.
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Affiliation(s)
- Shiyi Zhao
- College of Food Science and Engineering, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo, 315800, China
| | - Jiahui Chen
- College of Food Science and Engineering, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo, 315800, China
| | - Shifeng Cao
- College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo, 315100, China
| | - Hongfei Wang
- College of Food Science and Engineering, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo, 315800, China
| | - Hangjun Chen
- Food Science Institute, Zhejiang Academy of Agricultural Sciences, Key Laboratory of Postharvest Preservation and Processing of Vegetables (Co-construction By Ministry and Province), Ministry of Agriculture and Rural Affairs, Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Hangzhou, 310021, China
| | - Yingying Wei
- College of Food Science and Engineering, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo, 315800, China
| | - Yi Chen
- College of Food Science and Engineering, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo, 315800, China
| | - Xingfeng Shao
- College of Food Science and Engineering, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo, 315800, China
| | - Feng Xu
- College of Food Science and Engineering, Zhejiang-Malaysia Joint Research Laboratory for Agricultural Product Processing and Nutrition, Ningbo University, Ningbo, 315800, China.
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3
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Pan N, Xu H, Chen W, Liu Z, Liu Y, Huang T, Du S, Xu S, Zheng T, Zuo Z. Cyanobacterial VOCs β-ionone and β-cyclocitral poisoning Lemna turionifera by triggering programmed cell death. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 342:123059. [PMID: 38042469 DOI: 10.1016/j.envpol.2023.123059] [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: 09/11/2023] [Revised: 11/07/2023] [Accepted: 11/26/2023] [Indexed: 12/04/2023]
Abstract
β-Ionone and β-cyclocitral are two typical components in cyanobacterial volatiles, which can poison aquatic plants and even cause death. To reveal the toxic mechanisms of the two compounds on aquatic plants through programmed cell death (PCD), the photosynthetic capacities, caspase-3-like activity, DNA fragmentation and ladders, as well as expression of the genes associated with PCD in Lemna turionifera were investigated in exposure to β-ionone (0.2 mM) and β-cyclocitral (0.4 mM) at lethal concentration. With prolonging the treatment time, L. turionifera fronds gradually died, and photosynthetic capacities gradually reduced and even disappeared at the 96th h. This demonstrated that the death process might be a PCD rather than a necrosis, due to the gradual loss of physiological activities. When L. turionifera underwent the death, caspase-3-like was activated after 3 h, and reached to the strongest activity at the 24th h. TUNEL-positive nuclei were detected after 12 h, and appeared in large numbers at the 48th h. The DNA was cleaved by Ca2+-dependent endonucleases and showed obviously ladders. In addition, the expression of 5 genes (TSPO, ERN1, CTSB, CYC, and ATR) positively related with PCD initiation was up-regulated, while the expression of 2 genes (RRM2 and TUBA) negatively related with PCD initiation was down-regulated. Therefore, β-ionone and β-cyclocitral can poison L. turionifera by adjusting related gene expression to trigger PCD.
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Affiliation(s)
- Ning Pan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Haozhe Xu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Wangbo Chen
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Zijian Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Yichi Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Tianyu Huang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Siyi Du
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Sun Xu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Tiefeng Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Zhaojiang Zuo
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China.
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4
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Huang T, Lai M, Lin Z, Luo R, Xiang X, Xu H, Pan N, Zuo Z. Identification of algicidal monoterpenoids from four chemotypes of Cinnamomum camphora and their algicidal mechanisms on Microcystis aeruginosa. ENVIRONMENTAL RESEARCH 2024; 241:117714. [PMID: 37989462 DOI: 10.1016/j.envres.2023.117714] [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: 09/04/2023] [Revised: 10/27/2023] [Accepted: 11/15/2023] [Indexed: 11/23/2023]
Abstract
Cyanobacterial blooms cause serious environmental issues, and plant secondary metabolites are considered as new algaecide for controlling them. Cinnamomum camphora produces a wide spectrum of terpenoids and has 4 main chemotypes, including linalool, camphor, eucalyptol and borneol chemotype. To develop the new cyanobacterial algaecide by using suitable chemotype of Cinnamomum camphora and the main terpenoids, we analyzed the terpenoid composition in the 4 chemotype extracts, evaluated the algicidal effects of the extracts and their typical monoterpenoids on Microcystis aeruginosa, and investigated the algicidal mechanism of the stronger algicidal agents. Among the 4 chemotypes, eucalyptol and borneol chemotype extracts exhibited stronger algicidal effects. In the 4 chemotype extracts, monoterpenoids were the main compounds, of which linalool, camphor, eucalyptol and borneol were the typical components. Among the 4 typical monoterpenoids, eucalyptol and borneol showed stronger algicidal effects, which killed 78.8% and 100% M. aeruginosa cells, respectively, at 1.2 mM after 48 h. In 1.2 mM eucalyptol and borneol treatments, the reactive oxygen species levels markedly increased, and the caspase-3-like activity also raised. With prolonging the treatment time, M. aeruginosa cells gradually shrank and wrinkled, and the cell TUNEL fluorescence intensity and DNA degradation gradually enhanced, indicating that the lethal mechanism is causing apoptosis-like programmed cell death (PCD). Therefore, eucalyptol and borneol chemotype extracts and their typical monoterpenoids have the potential for developing as algaecides to control cyanobacteria through triggering apoptosis-like PCD.
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Affiliation(s)
- Tianyu Huang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Meng Lai
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Zhenwei Lin
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Ruiqi Luo
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Xuezheng Xiang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Haozhe Xu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Ning Pan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China
| | - Zhaojiang Zuo
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China; Zhejiang Provincial Key Laboratory of Forest Aromatic Plants-based Healthcare Functions, Zhejiang A&F University, Hangzhou, 311300, China.
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5
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Ur Rahman S, Han JC, Ahmad M, Ashraf MN, Khaliq MA, Yousaf M, Wang Y, Yasin G, Nawaz MF, Khan KA, Du Z. Aluminum phytotoxicity in acidic environments: A comprehensive review of plant tolerance and adaptation strategies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 269:115791. [PMID: 38070417 DOI: 10.1016/j.ecoenv.2023.115791] [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: 09/20/2023] [Revised: 11/28/2023] [Accepted: 12/04/2023] [Indexed: 01/12/2024]
Abstract
Aluminum (Al), a non-essential metal for plant growth, exerts significant phytotoxic effects, particularly on root growth. Anthropogenic activities would intensify Al's toxic effects by releasing Al3+ into the soil solution, especially in acidic soils with a pH lower than 5.5 and rich mineral content. The severity of Al-induced phytotoxicity varies based on factors such as Al concentration, ionic form, plant species, and growth stages. Al toxicity leads to inhibited root and shoot growth, reduced plant biomass, disrupted water uptake causing nutritional imbalance, and adverse alterations in physiological, biochemical, and molecular processes. These effects collectively lead to diminished plant yield and quality, along with reduced soil fertility. Plants employ various mechanisms to counter Al toxicity under stress conditions, including sequestering Al in vacuoles, exuding organic acids (OAs) like citrate, oxalate, and malate from root tip cells to form Al-complexes, activating antioxidative enzymes, and overexpressing Al-stress regulatory genes. Recent advancements focus on enhancing the exudation of OAs to prevent Al from entering the plant, and developing Al-tolerant varieties. Gene transporter families, such as ATP-Binding Cassette (ABC), Aluminum-activated Malate Transporter (ALMT), Natural resistance-associated macrophage protein (Nramp), Multidrug and Toxic compounds Extrusion (MATE), and aquaporin, play a crucial role in regulating Al toxicity. This comprehensive review examined recent progress in understanding the cytotoxic impact of Al on plants at the cellular and molecular levels. Diverse strategies developed by both plants and scientists to mitigate Al-induced phytotoxicity were discussed. Furthermore, the review explored recent genomic developments, identifying candidate genes responsible for OAs exudation, and delved into genome-mediated breeding initiatives, isolating transgenic and advanced breeding lines to cultivate Al-tolerant plants.
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Affiliation(s)
- Shafeeq Ur Rahman
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Jing-Cheng Han
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Muhammad Ahmad
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Muhammad Nadeem Ashraf
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | | | - Maryam Yousaf
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Yuchen Wang
- Water Science and Environmental Engineering Research Center, College of Chemical and Environmental Engineering, Shenzhen University, Shenzhen 518060, China; Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ghulam Yasin
- Department of Forestry and Range Management, FAS & T, Bahauddin Zakariya University Multan, Multan 60000, Pakistan
| | | | - Khalid Ali Khan
- Unit of Bee Research and Honey Production, Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia; Applied College, King Khalid University, Abha 61413, Saudi Arabia
| | - Zhenjie Du
- Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang 453002, China; Water Environment Factor Risk Assessment Laboratory of Agricultural Products Quality and Safety, Ministry of Agriculture and Rural Affairs, Xinxiang 453002, China.
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Liao G, Luo S, Li X, Li A, Mo Y, Wang A, Xiao D, He LF, Zhan J. Identification and functional characterization of REGULATORY PARTICLE NON-ATPASE 1a-like (AhRPN1a-like) in peanuts during aluminum-induced programmed cell death. JOURNAL OF PLANT PHYSIOLOGY 2023; 289:154079. [PMID: 37703767 DOI: 10.1016/j.jplph.2023.154079] [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: 04/29/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/15/2023]
Abstract
The toxicity of aluminum (Al) in acidic soil is a prevalent problem and causes reduced crop yields. In the plant response to Al toxicity, programmed cell death (PCD) appears to be one of the important mechanisms. However, the regulation of Al-induced PCD remains poorly understood. Here, we found that an uncharacterized protein REGULATORY PARTICLE NON-ATPASE 1a-like in peanut (AhRPN1a-like), located in the nucleus and cytoplasm, directly interacted with type I metacaspase in peanut (AhMC1). The overexpression of AhRPN1a-like in Arabidopsis strongly enhanced Al inhibition of root growth with a loss of root tip cell viability. Furthermore, in response to Al treatment, the VIGS knockdown line of AhRPN1a-like in peanut displayed decreased transcription of AhMC1, increased root growth, reduced Al-induced PCD and decreased 26S proteasomal activity. Taken together, these findings demonstrated that AhRPN1a-like interacted directly with AhMC1, and promotes the occurrence of Al-induced PCD via the 26S proteasome pathway, thereby reducing Al-resistance.
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Affiliation(s)
- Guoting Liao
- College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Shuzhen Luo
- College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Xinyue Li
- College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Ailing Li
- College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Yunchuan Mo
- College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Aiqin Wang
- College of Agriculture, Guangxi University, Nanning, Guangxi, China; Key Laboratory of Crop Cultivation and Physiology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Agro-environment and Agric-products Safety, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Dong Xiao
- College of Agriculture, Guangxi University, Nanning, Guangxi, China; Key Laboratory of Crop Cultivation and Physiology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Agro-environment and Agric-products Safety, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Long-Fei He
- College of Agriculture, Guangxi University, Nanning, Guangxi, China; Key Laboratory of Crop Cultivation and Physiology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Agro-environment and Agric-products Safety, College of Agriculture, Guangxi University, Nanning, Guangxi, China
| | - Jie Zhan
- College of Agriculture, Guangxi University, Nanning, Guangxi, China; Key Laboratory of Crop Cultivation and Physiology, Education Department of Guangxi Zhuang Autonomous Region, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Agro-environment and Agric-products Safety, College of Agriculture, Guangxi University, Nanning, Guangxi, China.
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Liang X, Qian R, Ou Y, Wang D, Lin X, Sun C. Lipid peroxide-derived short-chain aldehydes promote programmed cell death in wheat roots under aluminum stress. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130142. [PMID: 36265378 DOI: 10.1016/j.jhazmat.2022.130142] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/17/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Lipid peroxidation is a primary event in plant roots exposed to aluminum (Al) toxicity, which leads to the formation of reactive aldehydes. Current evidence demonstrates that the resultant aldehydes are integrated components of cellular damage in plants. Here, we investigated the roles of aldehydes in mediating Al-induced damage, particularly cell death, using two wheat genotypes with different Al resistances. Aluminum treatment significantly induced cell death, which was accompanied by decreased root activity and cell length. Al-induced cell death displayed granular nuclei and internucleosomal fragmentation of nuclear DNA, suggesting these cells underwent programmed cell death (PCD). During this process, caspase-3-like protease activity was extensively enhanced and showed a significant difference between these two wheat genotypes. Further experiments showed that Al-induced cell death was positively correlated with aldehydes levels. Al-induced representative diagnostic markers for PCD, such as TUNEL-positive nuclei and DNA fragmentation, were further enhanced by the aldehyde donor (E)-2-hexenal, but significantly suppressed by the aldehyde scavenger carnosine. As the crucial executioner of Al-induced PCD, the activity of caspase-3-like protease was further enhanced by (E)-2-hexenal but inhibited by carnosine in wheat roots. These results suggest that reactive aldehydes sourced from lipid peroxidation mediate Al-initiated PCD probably through activating caspase-3-like protease in wheat roots.
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Affiliation(s)
- Xin Liang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Ruyi Qian
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yiqun Ou
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dan Wang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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8
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Qian R, Zhao H, Liang X, Sun N, Zhang N, Lin X, Sun C. Autophagy alleviates indium-induced programmed cell death in wheat roots. JOURNAL OF HAZARDOUS MATERIALS 2022; 439:129600. [PMID: 35870211 DOI: 10.1016/j.jhazmat.2022.129600] [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: 04/25/2022] [Revised: 07/01/2022] [Accepted: 07/12/2022] [Indexed: 06/15/2023]
Abstract
Indium released in agroecosystems is becoming an emerging plant stressor, causing cellular damage and consequently crop yield losses. Previous studies have focused on indium-induced toxicity in plants, while plant adaptive responses to such emerging metal xenobiotics are poorly understood. Here, we explored the relationship of autophagy and programmed cell death (PCD) in wheat roots under indium stress. Indium treatment significantly decreased root activity and cell viability, and suppressed the length of root epidermal cells in the elongation zones. These symptoms may be associated with indium-induced PCD, as indium-stressed wheat roots displayed condensed and granular nuclei, increased number of TUNEL-positive nuclei, enhanced nuclear DNA fragmentation and caspase-3-like protease activity compared to untreated roots. Accordingly, indium enhanced the expression levels of TaMCA1 and TaMCA4, two major metacaspase genes mediated PCD in wheat plants. The enhanced expression of autophagy genes and formation of autophagosomes indicate that autophagy could regulate metabolic adaptation and repair stress-induced damage in wheat roots. Furthermore, reinforcing autophagy by activator rapamycin significantly decreased the number of TUNEL-positive nuclei and the activity of caspase-3-like protease, whereas inhibition of autophagy by 3-methyladenine aggravated diagnostic markers for PCD. These results together suggest that autophagy suppresses indium-induced PCD in wheat roots.
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Affiliation(s)
- Ruyi Qian
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, China
| | - Hongcheng Zhao
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xin Liang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, China
| | - Nan Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, China
| | - Nan Zhang
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xianyong Lin
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chengliang Sun
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Natural Resource & Environmental Sciences, Zhejiang University, Hangzhou 310058, China.
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9
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Yang H, Yu H, Wu Y, Huang H, Zhang X, Ye D, Wang Y, Zheng Z, Li T. Nitric oxide amplifies cadmium binding in root cell wall of a high cadmium-accumulating rice (Oryza sativa L.) line by promoting hemicellulose synthesis and pectin demethylesterification. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 234:113404. [PMID: 35278988 DOI: 10.1016/j.ecoenv.2022.113404] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/27/2022] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Nitric oxide (NO) is tightly associated with plant response against cadmium (Cd) stress in rice since NO impacts Cd accumulation via modulating cell wall components. In the present study, we investigated that whether and how NO regulates Cd accumulation in root in two rice lines with different Cd accumulation ability. The variation of polysaccharides in root cell wall (RCW) of a high Cd-accumulating rice line Lu527-8 and a normal rice line Lu527-4 in response to Cd stress when exogenous NO supplied by sodium nitroprusside (SNP, a NO donor) was studied. Appreciable amounts of Cd distributed in RCW, in which most Cd ions were bound to pectin for the two rice lines when exposed to Cd. Exogenous NO upregulated the expression of OsPME11 and OsPME12 that were involved in pectin demethylesterification, resulting in more low methyl-esterified pectin and therefore stronger pectin-Cd binding. Exogenous NO also enhanced the concentration of hemicellulose and the amount of Cd ions in it. These results demonstrate that NO-induced more Cd binding in RCW in the two rice lines through promoting pectin demethylesterification and increasing hemicellulose accumulation. Higher OsPMEs expression and more hemicellulose synthesis contributed to more Cd immobilization in RCW of the high Cd-accumulating rice line Lu527-8. The main findings of this study reveal the regulation of NO on cell wall polysaccharides modification under Cd stress and help to elucidate the physiological and molecular mechanism of NO participating in Cd responses of rice.
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Affiliation(s)
- Huan Yang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Haiying Yu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Yao Wu
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Huagang Huang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Xizhou Zhang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Daihua Ye
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Yongdong Wang
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Zicheng Zheng
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China
| | - Tingxuan Li
- College of Resources, Sichuan Agricultural University, Chengdu 611130, Sichuan, China.
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10
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Huang J, Han R, Ji F, Yu Y, Wang R, Hai Z, Liang W, Wang H. Glucose-6-phosphate dehydrogenase and abscisic acid mediate programmed cell death induced by aluminum toxicity in soybean root tips. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127964. [PMID: 34891015 DOI: 10.1016/j.jhazmat.2021.127964] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/21/2021] [Accepted: 11/29/2021] [Indexed: 06/13/2023]
Abstract
Programmed cell death (PCD) induced by aluminum (Al) is considered an important reason of Al phytotoxicity. However, the underlying mechanism of how Al induces PCD remains largely unknown in plants. The roles of glucose-6-phosphate dehydrogenase (G6PDH) and abscisic acid (ABA) in regulating Al-induced PCD were investigated in soybean roots. Al treatment increased G6PDH activity, while inhibition of G6PDH activity alleviated PCD occurrence and reactive oxygen species (ROS) accumulation under Al stress. Overexpression of cytosolic G6PDH1 enhanced G6PDH activity, thus promoting ROS production and cell death under Al exposure. Inhibition of NADPH oxidase activity mitigated ROS generation and cell death under Al stress. Further investigation demonstrated that G6PDH positively regulated the activity of NADPH oxidase under Al treatment using pharmacological and transgenic approach. Furthermore, Al stress increased ABA production, while inhibition of ABA biosynthesis alleviated PCD occurrence and ROS accumulation under Al stress. Interestingly, ABA upregulated G6PDH1 expression and G6PDH activity under Al stress. These results suggest that G6PDH mediates Al-induced PCD occurrence through the activation of NADPH oxidase-dependent ROS production, and ABA acts upstream of G6PDH in this process. This study will provide novel clues for the improvement of Al phytotoxicity in acidic soils.
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Affiliation(s)
- Junjun Huang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Rongzhi Han
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Fang Ji
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Yuanyuan Yu
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Ruoyi Wang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Zhaoxin Hai
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China
| | - Weihong Liang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China; The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province, Xinxiang, Henan 453007, China
| | - Huahua Wang
- College of Life Sciences, Henan Normal University, Xinxiang, Henan 453007, China; The Observation and Research Field Station of Taihang Mountain Forest Ecosystems of Henan Province, Xinxiang, Henan 453007, China.
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11
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Ren R, Zhou H, Zhang L, Jiang X, Liu Y. Cryopreserved-pollen viability is regulated by NO-induced programmed cell death. PLANT CELL REPORTS 2021; 40:2383-2395. [PMID: 34459961 DOI: 10.1007/s00299-021-02779-1] [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: 07/16/2021] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
After cryopreservation, the NO content in pollen increased, inducing programmed cell death as a key reason for reduced viability. Low recovery of biomaterials after cryopreservation is a bottleneck that limits the application of this technology. At present, the mechanism of viability decline after cryopreservation is not fully understood. In this study, the effects of nitric oxide (NO) on programmed cell death (PCD) and its relationship with viability were investigated, using Paeonia lactiflora 'Fen Yu Nu' pollen with significantly decreased viability after cryopreservation. The results showed that: the activity of caspase-3-like and caspase-9-like protease and the apoptosis rate of pollen cells were significantly increased, the expression level of the promoting PCD (pro-PCD) genes was up-regulated, while the expression level of the inhibiting PCD (anti-PCD) genes was down-regulated after preservation in liquid nitrogen (LN); the NO content in pollen cells increased significantly after LN exposure. The correlation analysis showed that NO was significantly correlated with pollen viability and all indicators of PCD. The addition of a NO carrier SNP after LN storage reduced pollen viability, increased endogenous NO content, decreased mitochondrial membrane potential level, activated caspase-3-like and caspase-9-like protease in pollen cells, and increased cell apoptosis rate. The expression levels of pro-PCD genes PDCD2 and ATG8CL were significantly up-regulated, while the expression levels of anti-PCD genes DAD1, BI-1 and LSD1 were significantly down-regulated. The addition of NO scavenger c-PTIO improved pollen viability, and produced the opposite effect of sodium nitroferricyanide (III) dihydrate (SNP), but did not change the mitochondrial membrane potential. These results suggest that NO induced PCD during the cryopreservation of pollen, which was one of the reasons for the significant decrease of pollen viability after cryopreservation.
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Affiliation(s)
- Ruifen Ren
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Municipal Education Commission, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, College of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China
| | - Hao Zhou
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Municipal Education Commission, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, College of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China
| | - Lingling Zhang
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Municipal Education Commission, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, College of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China
| | - Xueru Jiang
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Municipal Education Commission, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, College of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China
| | - Yan Liu
- Beijing Laboratory of Urban and Rural Ecological Environment, Beijing Municipal Education Commission, Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, College of Landscape Architecture, Beijing Forestry University, Beijing, 100083, China.
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12
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Ranjan A, Sinha R, Sharma TR, Pattanayak A, Singh AK. Alleviating aluminum toxicity in plants: Implications of reactive oxygen species signaling and crosstalk with other signaling pathways. PHYSIOLOGIA PLANTARUM 2021; 173:1765-1784. [PMID: 33665830 DOI: 10.1111/ppl.13382] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/11/2021] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
Aluminum (Al) toxicity is a major limiting factor for plant growth and productivity in acidic soil. At pH lower than 5.0 (pH < 5.0), the soluble and toxic form of Al (Al3+ ions) enters root cells and inhibits root growth and uptake of water and nutrients. The organic acids malate, citrate, and oxalate are secreted by the roots and chelate Al3+ to form a non-toxic Al-OA complex, which decreases the entry of Al3+ into the root cells. When Al3+ enters, it leads to the production of reactive oxygen species (ROS) in cells, which are toxic and cause damage to biomolecules like lipids, carbohydrates, proteins, and nucleic acids. When ROS levels rise beyond the threshold, plants activate an antioxidant defense system that comprises of superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), glutathione S-transferase (GST), ascorbic acid (ASA), phenolics and alkaloids etc., which protect plant cells from oxidative damage by scavenging and neutralizing ROS. Besides, ROS also play an important role in signal transduction and influence many molecular and cellular process like hormone signaling, gene expression, cell wall modification, cell cycle, programed cell death (PCD), and development. In the present review, the mechanisms of Al-induced ROS generation, ROS signaling, and crosstalk with other signaling pathways helping to combat Al toxicity have been summarized, which will help researchers to understand the intricacies of Al-induced plant response at cellular level and plan research for developing Al-toxicity tolerant crops for sustainable agriculture in acid soil-affected regions of the world.
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Affiliation(s)
- Alok Ranjan
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - Ragini Sinha
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | - Tilak Raj Sharma
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
| | | | - Anil Kumar Singh
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, India
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13
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Huang J, Wang Y, Liu W, Li X, Han R, Liang W, Wang H. Nitric oxide-mediated alternative pathway alleviates aluminum-induced programmed cell death in soybean root tips. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 310:110988. [PMID: 34315602 DOI: 10.1016/j.plantsci.2021.110988] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Alternative pathway (AP) plays essential roles in plant adaptation to environmental stress. However, the exact role of AP in response to aluminum (Al) toxicity remains elusive. We here provide solid evidences that the activated AP capacity in root tips of soybean alleviated Al toxicity. Furthermore, inhibition of AP by pharmacological or transgenic approach aggravated Al-induced programmed cell death (PCD) occurrence mediated through reactive oxygen species (ROS)-dependent mitochondrial pathway. Our results also demonstrated that nitric oxide (NO) plays a negative role in PCD occurrence caused by Al in soybean root tips. Interestingly, the alleviating effect of NO on Al-induced PCD could be blocked by AP inhibition. Further investigation showed that NO mediates the induction of AP resulting from the upregulation of AOX expression and pyruvate content in Al-treated root tips of soybean. Taken together, our results clearly suggest that AP participates in the alleviation of Al toxicity and also plays a critical role in the alleviating effect of NO on Al-induced PCD occurrence, which will open up new avenues for the improvement of plant growth in acidic soils.
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Affiliation(s)
- Junjun Huang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Ying Wang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Wenwen Liu
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Xiaoyu Li
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Rongzhi Han
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Weihong Liang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Huahua Wang
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, Henan, China.
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14
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Pan C, Li X, Yao S, Luo S, Liu S, Wang A, Xiao D, Zhan J, He L. S-nitrosated proteomic analysis reveals the regulatory roles of protein S-nitrosation and S-nitrosoglutathione reductase during Al-induced PCD in peanut root tips. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 308:110931. [PMID: 34034861 DOI: 10.1016/j.plantsci.2021.110931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 04/03/2021] [Accepted: 04/24/2021] [Indexed: 06/12/2023]
Abstract
Nitric oxide-mediated S-nitrosation through S-nitrosoglutathione reductase (GSNOR) plays important roles in cellular processes and signaling of plants; however, the regulatory mechanism of programmed cell death (PCD) by S-nitrosation remains unclear. In this study, the S-nitrosated proteomic and functions of GSNOR during Al-induced PCD in peanut were investigated. Al stress induced an increase of S-nitrosothiol (SNO) content and GSNOR activity in Al-induced PCD. There was significant positive correlation between SNO content and hydrogen peroxide content. The S-nitrosated proteomic analysis identified 402 S-nitrosated proteins containing 551 S-nitrosated sites during Al-induced PCD in the root tips of peanut. These S-nitrosated proteins were involved in regulation of various biological processes including energy metabolism, maintenance of cell wall function and organic acid secretion. Among them, 128 S-nitrosated proteins were up-regulated and one was down-regulated after Al stress. Experiments with recombinant AhGSNOR revealed that activity of the enzyme was inhibited by its S-nitrosation, with a moderate decrease of 17.9 % after 100 μM GSNO incubation. These data provide novel insights to understanding the functional mechanism of NO-mediated S-nitrosation during plant PCD.
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Affiliation(s)
- Chunliu Pan
- College of Agronomy, Guangxi University, Nanning, China; Guangxi Botanical Garden of Medicinal Plants, Nanning, China; College of Life Science and Technology, Guangxi University, Nanning, China; Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning, China
| | - Xia Li
- College of Agronomy, Guangxi University, Nanning, China
| | - Shaochang Yao
- College of Agronomy, Guangxi University, Nanning, China
| | - Shuzhen Luo
- College of Agronomy, Guangxi University, Nanning, China
| | - Songying Liu
- College of Agronomy, Guangxi University, Nanning, China
| | - Aiqin Wang
- College of Agronomy, Guangxi University, Nanning, China; Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning, China
| | - Dong Xiao
- College of Agronomy, Guangxi University, Nanning, China; Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning, China
| | - Jie Zhan
- College of Agronomy, Guangxi University, Nanning, China; Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning, China.
| | - Longfei He
- College of Agronomy, Guangxi University, Nanning, China; Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning, China.
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15
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Ren H, Zhao X, Li W, Hussain J, Qi G, Liu S. Calcium Signaling in Plant Programmed Cell Death. Cells 2021; 10:cells10051089. [PMID: 34063263 PMCID: PMC8147489 DOI: 10.3390/cells10051089] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/24/2021] [Accepted: 04/28/2021] [Indexed: 12/12/2022] Open
Abstract
Programmed cell death (PCD) is a process intended for the maintenance of cellular homeostasis by eliminating old, damaged, or unwanted cells. In plants, PCD takes place during developmental processes and in response to biotic and abiotic stresses. In contrast to the field of animal studies, PCD is not well understood in plants. Calcium (Ca2+) is a universal cell signaling entity and regulates numerous physiological activities across all the kingdoms of life. The cytosolic increase in Ca2+ is a prerequisite for the induction of PCD in plants. Although over the past years, we have witnessed significant progress in understanding the role of Ca2+ in the regulation of PCD, it is still unclear how the upstream stress perception leads to the Ca2+ elevation and how the signal is further propagated to result in the onset of PCD. In this review article, we discuss recent advancements in the field, and compare the role of Ca2+ signaling in PCD in biotic and abiotic stresses. Moreover, we discuss the upstream and downstream components of Ca2+ signaling and its crosstalk with other signaling pathways in PCD. The review is expected to provide new insights into the role of Ca2+ signaling in PCD and to identify gaps for future research efforts.
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Affiliation(s)
- Huimin Ren
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China; (H.R.); (X.Z.); (W.L.)
| | - Xiaohong Zhao
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China; (H.R.); (X.Z.); (W.L.)
| | - Wenjie Li
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China; (H.R.); (X.Z.); (W.L.)
| | - Jamshaid Hussain
- Department of Biotechnology, COMSATS University Islamabad, Abbottabad Campus, University Road, Abbottabad 22060, Pakistan;
| | - Guoning Qi
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China; (H.R.); (X.Z.); (W.L.)
- Correspondence: (G.Q.); (S.L.)
| | - Shenkui Liu
- State Key Laboratory of Subtropical Silviculture, School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China; (H.R.); (X.Z.); (W.L.)
- Correspondence: (G.Q.); (S.L.)
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16
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Liu J, Yu Q, Ye B, Zhu K, Yin J, Zheng T, Xu S, Sun Q, Li Y, Zuo Z. Programmed cell death of Chlamydomonas reinhardtii induced by three cyanobacterial volatiles β-ionone, limonene and longifolene. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 762:144539. [PMID: 33360449 DOI: 10.1016/j.scitotenv.2020.144539] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/22/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
β-Ionone, limonene and longifolene are 3 main components in cyanobacterial volatile organic compounds, which are formed through different pathways and can poison and even kill other algae. To uncover their toxic mechanism from programmed cell death (PCD), the photosynthetic pigments, chlorophyll fluorescence, caspase-like activities, cell size, nuclear variations and DNA ladders were investigated in Chlamydomonas reinhardtii treated with β-ionone (0.2 mM), limonene (0.2 mM) and longifolene (0.4 mM) at lethal concentration during 24 h. In the treatments with the 3 compounds, the photosynthetic pigments in C. reinhardtii cells gradually degraded, and Fv/Fm gradually decreased and disappeared at 24 h, suggesting that the cell death might be a PCD, due to the physiological activities gradually disappearing. During the cell death, the activities of caspase-9-like and caspase-3-like significantly increased, with the highest at 1 h. With prolonging the treatment time, C. reinhardtii cells gradually shrank, and the nuclei concentrated firstly following by a broken process, with moving to the cell edge. For DNA, obvious ladders were detected at 1 h, and then they gradually degraded to fragments of 100-250 bp at 24 h. These hallmarks suggested that β-ionone, limonene and longifolene may poison other algae by inducing PCD.
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Affiliation(s)
- Jialu Liu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Qianpeng Yu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Bingqi Ye
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Kaiqi Zhu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Jiawen Yin
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Tiefeng Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Sun Xu
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Qing Sun
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Yan Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Zhaojiang Zuo
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China.
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17
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Xiao D, Li X, Zhou YY, Wei L, Keovongkod C, He H, Zhan J, Wang AQ, He LF. Transcriptome analysis reveals significant difference in gene expression and pathways between two peanut cultivars under Al stress. Gene 2021; 781:145535. [PMID: 33631240 DOI: 10.1016/j.gene.2021.145535] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 02/03/2021] [Accepted: 02/09/2021] [Indexed: 12/31/2022]
Abstract
Aluminum (Al) toxicity is an important factor in limiting peanut growth on acidic soil. The molecular mechanisms underlying peanut responses to Al stress are largely unknown. In this study, we performed transcriptome analysis of the root tips (0-1 cm) of peanut cultivar ZH2 (Al-sensitive) and 99-1507 (Al-tolerant) respectively. Root tips of peanuts that treated with 100 μM Al for 8 h and 24 h were analyzed by RNA-Seq, and a total of 8,587 differentially expressed genes (DEGs) were identified. GO and KEGG pathway analysis excavated a group of important Al-responsive genes related to organic acid transport, metal cation transport, transcription regulation and programmed cell death (PCD). These homologs were promising targets to modulate Al tolerance in peanuts. It was found that the rapid transcriptomic response to Al stress in 99-1507 helped to activate effective Al tolerance mechanisms. Protein and protein interaction analysis indicated that MAPK signal transduction played important roles in the early response to Al stress in peanuts. Moreover, weighted correlation network analysis (WGCNA) identified a predicted EIL (EIN3-like) gene with greatly increased expression as an Al-associated gene, and revealed a link between ethylene signaling transduction and Al resistance related genes in peanut, which suggested the enhanced signal transduction mediated the rapid transcriptomic responses. Our results revealed key pathways and genes associated with Al stress, and improved the understanding of Al response in peanut.
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Affiliation(s)
- Dong Xiao
- National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, PR China; Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning 530004, PR China.
| | - Xia Li
- National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, PR China
| | - Yun-Yi Zhou
- National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, PR China
| | - Li Wei
- National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, PR China
| | - Chanthaphoone Keovongkod
- National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, PR China
| | - Huyi He
- Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, PR China
| | - Jie Zhan
- National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, PR China; Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning 530004, PR China
| | - Ai-Qin Wang
- National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, PR China; Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning 530004, PR China
| | - Long-Fei He
- National Demonstration Center for Experimental Plant Science Education, College of Agriculture, Guangxi University, Nanning 530004, PR China; Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning 530004, PR China.
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18
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Sychta K, Słomka A, Kuta E. Insights into Plant Programmed Cell Death Induced by Heavy Metals-Discovering a Terra Incognita. Cells 2021; 10:cells10010065. [PMID: 33406697 PMCID: PMC7823951 DOI: 10.3390/cells10010065] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/29/2020] [Accepted: 12/30/2020] [Indexed: 02/06/2023] Open
Abstract
Programmed cell death (PCD) is a process that plays a fundamental role in plant development and responses to biotic and abiotic stresses. Knowledge of plant PCD mechanisms is still very scarce and is incomparable to the large number of studies on PCD mechanisms in animals. Quick and accurate assays, e.g., the TUNEL assay, comet assay, and analysis of caspase-like enzyme activity, enable the differentiation of PCD from necrosis. Two main types of plant PCD, developmental (dPCD) regulated by internal factors, and environmental (ePCD) induced by external stimuli, are distinguished based on the differences in the expression of the conserved PCD-inducing genes. Abiotic stress factors, including heavy metals, induce necrosis or ePCD. Heavy metals induce PCD by triggering oxidative stress via reactive oxygen species (ROS) overproduction. ROS that are mainly produced by mitochondria modulate phytotoxicity mechanisms induced by heavy metals. Complex crosstalk between ROS, hormones (ethylene), nitric oxide (NO), and calcium ions evokes PCD, with proteases with caspase-like activity executing PCD in plant cells exposed to heavy metals. This pathway leads to very similar cytological hallmarks of heavy metal induced PCD to PCD induced by other abiotic factors. The forms, hallmarks, mechanisms, and genetic regulation of plant ePCD induced by abiotic stress are reviewed here in detail, with an emphasis on plant cell culture as a suitable model for PCD studies. The similarities and differences between plant and animal PCD are also discussed.
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Luo L, Wan Q, Zhang K, Zhang X, Guo R, Wang C, Zheng C, Liu F, Ding Z, Wan Y. AhABI4s Negatively Regulate Salt-Stress Response in Peanut. FRONTIERS IN PLANT SCIENCE 2021; 12:741641. [PMID: 34721468 PMCID: PMC8551806 DOI: 10.3389/fpls.2021.741641] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/13/2021] [Indexed: 05/04/2023]
Abstract
Soil salinity is one of the major factors that limit the area of cultivable land and yield potential of crops. The ability of salt tolerance varies with plant species. Peanut (Arachis hypogaea L.) is a moderately salt-sensitive and economically important crop, however, their biological processes involved in salt-stress response remain unclear. In this study, we investigated the role of A. hypogaea L. ABSCISIC ACID INSENSITIVE 4s (AhABI4s) in salt tolerance and elucidated its mode of action in peanuts. The results showed that the downregulation of AhABI4s via whole plant virus-induced gene silencing has enhanced the survival rate, biomass accumulation, and root/shoot ratio of peanut seedlings in response to salt-stress. Transcriptomics, quantitative proteomics, and phosphoproteomic analyses were performed using AhABI4s-silenced and Mock plants. The expression pattern of 15,247 genes, 1,900 proteins, and 2,620 phosphorylation sites were affected by silencing of AhABI4s in peanut leaf and root after sodium chloride (NaCl) treatment. Among them, 63 potential downstream target genes of ABI4 changed consistently at both transcription and translation levels, and the protein/phosphorylation levels of 31 ion transporters/channels were also affected. Electrophoretic mobility shift assays (EMSA) showed that ABI4 was able to bind to the promoters of HSP70, fructokinase (FRK), and pyruvate kinase (PK) coding genes in vitro. In addition, we also detected a binding preference of AhABI4 for CACT(G/T)GCA motif in the promoters of down-regulated genes in peanut leaf. Collectively, the potential downstream targets which were regulated at the levels of transcription and translation, binding preference, and in vivo phosphorylation sites that had been revealed in this study will provide new insight into the AhABI4s-mediated salt tolerance regulation mechanism in peanuts.
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Affiliation(s)
- Lu Luo
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, China
| | - Qian Wan
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Kun Zhang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Xiurong Zhang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Ruijie Guo
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Cai Wang
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China
| | - Chengchao Zheng
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Fengzhen Liu
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China
- *Correspondence: Fengzhen Liu
| | - Zhaojun Ding
- Key Laboratory of Plant Development and Environmental Adaptation Biology, Ministry of Education, College of Life Sciences, Shandong University, Qingdao, China
- Zhaojun Ding
| | - Yongshan Wan
- State Key Laboratory of Crop Biology, Shandong Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an, China
- Yongshan Wan
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Lin Q, Fan M, Peng X, Ma J, Zhang Y, Yu F, Wu Z, Liu B. Response of Vallisneria natans to aluminum phytotoxicity and their synergistic effect on nitrogen, phosphorus change in sediments. JOURNAL OF HAZARDOUS MATERIALS 2020; 400:123167. [PMID: 32569987 DOI: 10.1016/j.jhazmat.2020.123167] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 05/14/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
Increasing aluminum (Al) use and its effects on aquatic systems have been a global issue, however the Al impacts on submerged plants and their ecological functions were poorly understood. Aquatic simulation experiments were performed to study Al-toxicity on the germination and seedling morphological and physiological characteristics of Vallisneria natans, and investigate their synergistic effect on nitrogen (N), phosphorus (P) change and microbial community in sediment. The seeds germination characteristics, growth and physiological parameters of seedlings, including root activity, were significantly affected by alum treatments and the inhibition levels increased with Al3+ concentration. The Al accumulation in roots and leaves were significantly different. Al3+ concentration above 0.3 mg/L showed toxic to V. natans. TN, TP, IP, Fe/Al-P contents in sediments varied markedly under co-existence of Al and V. natans. Additionally, the relative abundance of sediment microbial community related to N, P cycle was effected. Results concluded that the increasing aquatic Al-concentration inhibits growth and propagation of submerged plants and the ecological restoration effect, and exerts synergistic effect with submerged plants on N, P components in sediments. Such findings were helpful for Al ecological evaluation, and were instructive for the submerged plants restoration in shallow eutrophic lakes with Al input.
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Affiliation(s)
- Qingwei Lin
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China; State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Mingjun Fan
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Xue Peng
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Jianmin Ma
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Yi Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Fei Yu
- College of Life Sciences, Henan Normal University, Xinxiang, 453007, China
| | - Zhenbin Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Biyun Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
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21
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Sun Q, Zhou M, Zuo Z. Toxic mechanism of eucalyptol and β-cyclocitral on Chlamydomonas reinhardtii by inducing programmed cell death. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:121910. [PMID: 31879110 DOI: 10.1016/j.jhazmat.2019.121910] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Revised: 12/13/2019] [Accepted: 12/15/2019] [Indexed: 06/10/2023]
Abstract
Eucalyptol and β-cyclocitral are 2 main compounds in cyanobacterial volatile organic compounds and can poison other algae. To uncover the toxic mechanism of the 2 compounds, the cell growth, photosynthetic abilities, H2O2 production, caspase-like activities, nuclear variation and DNA laddering were investigated in Chlamydomonas reinhardtii treated with eucalyptol and β-cyclocitral. Eucalyptol at ≥ 0.1 mM and β-cyclocitral at ≥ 0.05 mM showed toxic effects on C. reinhardtii cells, and 1.2 mM eucalyptol and 0.4 mM β-cyclocitral killed the whole of the cells during 24 h. During the death process, the photosynthetic pigment gradually degraded, and Fv/Fm gradually declined, indicating that the death is not a necrosis due to the gradual disappearance of the physiological process. In the treatments with 1.2 mM eucalyptol and 0.4 mM β-cyclocitral, H2O2 content burst at 10 min and 30 min, respectively. Caspase-9-like and caspase-3-like were activated, and cell nucleuses concentrated firstly and then broke with prolonging the treatment time. Meanwhile, DNA showed laddering after 1 h, and was gradually cleaved by Ca2+-dependent endonucleases to mainly about 100-250 bp fragments. These hallmarks indicated that eucalyptol and β-cyclocitral may poison other algal cells by inducing programmed cell death triggered by the increased H2O2.
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Affiliation(s)
- Qing Sun
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China; School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China
| | - Min Zhou
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China; School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China
| | - Zhaojiang Zuo
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China; School of Forestry and Biotechnology, Zhejiang A&F University, Hangzhou 311300, China.
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22
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Zhu H, Chen L, Xing W, Ran S, Wei Z, Amee M, Wassie M, Niu H, Tang D, Sun J, Du D, Yao J, Hou H, Chen K, Sun J. Phytohormones-induced senescence efficiently promotes the transport of cadmium from roots into shoots of plants: A novel strategy for strengthening of phytoremediation. JOURNAL OF HAZARDOUS MATERIALS 2020; 388:122080. [PMID: 31954299 DOI: 10.1016/j.jhazmat.2020.122080] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/11/2020] [Accepted: 01/12/2020] [Indexed: 05/24/2023]
Abstract
Due to the long growth period of plants, phytoremediation is time costly. Improving the accumulation of cadmium (Cd) in shoots of plants will promote the efficiency of phytoremediation. In this study, two senescence-relative phytohormones, abscisic acid (ABA) and salicylic acid (SA), were applied to strengthening phytoremediation of Cd by tall fescue (Festuca arundinacea S.). Under hydroponic culture, phytohormones treatment increased the Cd content of shoots 11.4-fold over the control, reaching 316.3 mg/kg (dry weight). Phytohormones-induced senescence contributes to the transport of heavy metals, and HMA3 was found to play a key role in this process. Additionally, this strategy could strengthen the accumulation of Cu and Zn in tall fescue shoots. Moreover, in soil pot culture, the strategy increased shoot Cd contents 2.56-fold over the control in tall fescue, and 2.55-fold over the control in Indian mustard (Brassica juncea L.), indicating its comprehensive adaptability and potential use in the field. In summary, senescence-induced heavy metal transport is developed as a novel strategy to strengthen phytoremediation. The strategy could be applied at the end of phytoremediation with an additional short duration (7 days) with comprehensive adaptability, and markedly strengthen the phytoremediation in the field.
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Affiliation(s)
- Huihui Zhu
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China; CAS Key Laboratory of Aquatic Botany and Watershed Ecology & CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, PR China
| | - Liang Chen
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology & CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, PR China
| | - Wei Xing
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology & CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, PR China
| | - Shangmin Ran
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Zhihui Wei
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Maurice Amee
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology & CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, PR China
| | - Misganaw Wassie
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology & CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, PR China
| | - Hong Niu
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Diyong Tang
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Jie Sun
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Dongyun Du
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China
| | - Jun Yao
- School of Water Resources & Environment, China University of Geosciences Beijing, Beijing, PR China
| | - Haobo Hou
- School of Resource and Environmental Sciences, Wuhan University, Wuhan, PR China
| | - Ke Chen
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China.
| | - Jie Sun
- College of Resources and Environmental Science, Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education & Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan, PR China.
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23
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Niu L, Yu J, Liao W, Xie J, Yu J, Lv J, Xiao X, Hu L, Wu Y. Proteomic Investigation of S-Nitrosylated Proteins During NO-Induced Adventitious Rooting of Cucumber. Int J Mol Sci 2019; 20:E5363. [PMID: 31661878 PMCID: PMC6862188 DOI: 10.3390/ijms20215363] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/19/2019] [Accepted: 10/23/2019] [Indexed: 02/07/2023] Open
Abstract
Nitric oxide (NO) acts an essential signaling molecule that is involved in regulating various physiological and biochemical processes in plants. However, whether S-nitrosylation is a crucial molecular mechanism of NO is still largely unknown. In this study, 50 μM S-nitrosoglutathione (GSNO) treatment was found to have a maximum biological effect on promoting adventitious rooting in cucumber. Meanwhile, removal of endogenous NO significantly inhibited the development of adventitious roots implying that NO is responsible for promoting the process of adventitious rooting. Moreover, application of GSNO resulted in an increase of intracellular S-nitrosothiol (SNO) levels and endogenous NO production, while decreasing the S-nitrosoglutathione reductase (GSNOR) activity during adventitious rooting, implicating that S-nitrosylation might be involved in NO-induced adventitious rooting in cucumber. Furthermore, the identification of S-nitrosylated proteins was performed utilizing the liquid chromatography/mass spectrometry/mass spectrometry (LC-MS/MS) and biotin-switch technique during the development of adventitious rooting. Among these proteins, the activities and S-nitrosylated level of glyceraldehyde-3-phosphate dehydrogenase (GAPDH), tubulin alpha chain (TUA), and glutathione reductase (GR) were further analyzed as NO direct targets. Our results indicated that NO might enhance the S-nitrosylation level of GAPDH and GR, and was found to subsequently reduce these activities and transcriptional levels. Conversely, S-nitrosylation of TUA increased the expression level of TUA. The results implied that S-nitrosylation of key proteins seems to regulate various pathways through differential S-nitrosylation during adventitious rooting. Collectively, these results suggest that S-nitrosylation could be involved in NO-induced adventitious rooting, and they also provide fundamental evidence for the molecular mechanism of NO signaling during adventitious rooting in cucumber explants.
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Affiliation(s)
- Lijuan Niu
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
| | - Jihua Yu
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
| | - Weibiao Liao
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
| | - Jianming Xie
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
| | - Jian Yu
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
| | - Jian Lv
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
| | - Xuemei Xiao
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
| | - Linli Hu
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
| | - Yue Wu
- College of Horticulture, Gansu Agricultural University, Lanzhou 730070, China.
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24
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Lin Q, Peng X, Liu B, Min F, Zhang Y, Zhou Q, Ma J, Wu Z. Aluminum distribution heterogeneity and relationship with nitrogen, phosphorus and humic acid content in the eutrophic lake sediment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:516-524. [PMID: 31330344 DOI: 10.1016/j.envpol.2019.07.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 07/08/2019] [Accepted: 07/09/2019] [Indexed: 06/10/2023]
Abstract
Increasing amount of aluminum (Al) gets into aquatic ecosystem through anthropogenic activity, but the knowledge about Al migration and relationships with sediments possessing different physico-chemical properties in eutrophic lakes is limited. Here, the Al migration rule and relationships with sediment nutritions in the Hangzhou West Lake, China was investigated, where a certain amount of residual Al-salts can enter because of the pre-treatment of the Qiantang River diversion project every day. Results revealed the obvious spatial distribution heterogeneity of Al in sediment vertical direction and horizontal direction following water flow. The Al content in sediment ranged 0.463-1.154 g kg-1 in Maojiabu Lake, and ranged 9.862-40.442 g kg-1 in Xiaonanhu Lake. Higher Al content distributed in upper layer sediment in lake with more disturbance. Total nitrogen (TN) contents were higher 0.917-3.387 mg g-1 and 0.627-0.786 mg g-1 in upper layer sediment than that in lower layer in Maojiabu Lake and Xiaonanhu Lake, respectively. Total phosphorus (TP) content ranged 0.779-2.580 mg g-1, in which IP and Fe/Al-P contributed 24.9-80.8% and 17.0-51.6%, respectively. Correlations between Al content with nutrition, humic acid (HA) etc. of sediment regionally varied in Maojiabu and Xiaonanhu Lake. Spatial distribution of Al-salt in eutrophic lakes closely related with the physico-chemical characteristics of nutrients, humus, human disturbance and water division parameters. Results provides new insight into Al-salts migration and references for Al-risk evaluating in eutrophic lakes.
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Affiliation(s)
- Qingwei Lin
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China; Henan Normal University, College of Life Sciences, Xinxiang, 453007, China
| | - Xue Peng
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Biyun Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
| | - Fenli Min
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yi Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Qiaohong Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Jianmin Ma
- Henan Normal University, College of Life Sciences, Xinxiang, 453007, China
| | - Zhenbin Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
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Chakraborty N, Mukherjee K, Sarkar A, Acharya K. Interaction between Bean and Colletotrichum gloeosporioides: Understanding Through a Biochemical Approach. PLANTS (BASEL, SWITZERLAND) 2019; 8:E345. [PMID: 31547386 PMCID: PMC6783891 DOI: 10.3390/plants8090345] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 08/31/2019] [Accepted: 09/09/2019] [Indexed: 02/07/2023]
Abstract
In addition to its role in animals, nowadays nitric oxide (NO) is considered as an emerging signaling molecule in plant systems. It is now believed that NO exerts its pivotal role in various plant physiological processes, such as in seed germination, plant developmental stages, and plant defense mechanisms. In this study, we have taken an initiative to show the biochemical basis of defense response activation in bean leaves during the progression of Colletotrichum gloeosporioides (Penz.) Penz. and Sacc. in detached bean leaves. Stages of pathogen penetration and colonization were successfully established in the detached bean leaves. Results showed up-regulation of different defense-related enzymes and other defense molecules, such as phenols, flavonoids, callose, and lignin molecules, along with NO at early stages of pathogen invasion. Although in the later stages of the disease, development of NO and other defense components (excluding lignin) were down-regulated, the production of reactive oxygen species in the form of H2O2 became elevated. Consequently, other stress markers, such as lipid peroxidation, proline content, and chlorophyll content, were changed accordingly. Correlation between the disease index and other defense molecules, along with NO, indicate that production of NO and reactive oxygen species (ROS) might influence the development of anthracnose in common bean.
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Affiliation(s)
| | - Kabita Mukherjee
- Department of Botany, Scottish Church College, Kolkata 700006, India.
| | - Anik Sarkar
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India.
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Department of Botany, University of Calcutta, Kolkata 700019, India.
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26
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He H, He LF. Nitric oxide is a suppressor of aluminum-induced mitochondria and caspase-like protease-dependent programmed cell death in plants. PLANT SIGNALING & BEHAVIOR 2019; 14:1640566. [PMID: 31291833 PMCID: PMC6768225 DOI: 10.1080/15592324.2019.1640566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Accepted: 06/27/2019] [Indexed: 06/09/2023]
Abstract
Aluminum (Al) promotes programmed cell death (PCD) in plants. Although a lot of knowledge about the mechanisms of Al tolerance has been learned, how Al-induced PCD is regulated by nitric oxide (NO) is poorly understood. Mitochondrion is the regulatory center for PCD. We found that Al reduced the level of mitochondrial NO/H2O2, promoted the opening of mitochondrial permeability transition pore, decreased mitochondrial inner membrane potential (∆ψm), and increased caspase-like protease activity. NO-specific scavenger cPTIO enhanced these effects that were reversed by NO donor sodium nitroprusside. Our data suggest that NO suppresses Al-induced PCD by improving mitochondrial physiological properties.
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Affiliation(s)
- Huyi He
- College of Agronomy, Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi University, Nanning, PR China
- Cash Crops Research Institute, Guangix Academy of Agricultural Sciences, Nanning 530004, PR China
| | - Long-Fei He
- College of Agronomy, Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Guangxi University, Nanning, PR China
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27
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He H, Oo TL, Huang W, He LF, Gu M. Nitric oxide acts as an antioxidant and inhibits programmed cell death induced by aluminum in the root tips of peanut (Arachis hypogaea L.). Sci Rep 2019; 9:9516. [PMID: 31267033 PMCID: PMC6606607 DOI: 10.1038/s41598-019-46036-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 06/17/2019] [Indexed: 11/09/2022] Open
Abstract
Aluminum (Al) causes programmed cell death (PCD) in plants. Our previous studies have confirmed that nitric oxide (NO) inhibits Al-induced PCD in the root tips of peanut. However, the mechanism by which NO inhibits Al-induced PCD is unclear. Here the effects of NO on mitochondrial reactive oxygen species (ROS), malondialdehyde (MDA), activities of superoxide dismutase (SOD) and ascorbate peroxidase (APX), expression of alternative oxidase (AhAOX) and cytochrome oxidase (AhCOX) were investigated in peanut (Arachis hypogaea L.) root tips treated with Al. The results showed that Al stress induced rapid accumulation of H2O2 and MDA and increased the ratio of SOD/APX. The up-regulation of AhAOX and AhCOX expressions was not enough to inhibit PCD occurrence. Sodium nitroprusside (SNP, a NO donor) decreased the ratio of SOD/APX and eliminated excess H2O2 and MDA, thereby inhibiting Al-induced PCD in the root tips of peanut. The expression of AhAOX and AhCOX was significantly enhanced in Al-induced PCD treated with SNP. But cPTIO (a NO specific scavenger) supply had the opposite effect. Taken together, these results suggested that lipid peroxidation induced by higher levels of H2O2 was an important cause of Al-induced PCD. NO-mediated inhibition of Al-induced PCD was related to a significant elimination of H2O2 accumulation by decreasing the ratio of SOD/APX and up-regulating the expression of AhAOX and AhCOX.
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Affiliation(s)
- Huyi He
- College of Agronomy, Guangxi University, Nanning, 530004, P.R. China.,Cash Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning, 530007, P.R. China
| | - Thet Lwin Oo
- College of Agronomy, Guangxi University, Nanning, 530004, P.R. China
| | - Wenjing Huang
- College of Agronomy, Guangxi University, Nanning, 530004, P.R. China
| | - Long-Fei He
- College of Agronomy, Guangxi University, Nanning, 530004, P.R. China. .,Guangxi Key Laboratory for Agro-Environment and Agro-Product Safety, Nanning, 530004, P.R. China.
| | - Minghua Gu
- College of Agronomy, Guangxi University, Nanning, 530004, P.R. China
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28
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Chen Y, Weng Y, Zhou M, Meng Y, Liu J, Yang L, Zuo Z. Linalool- and α-terpineol-induced programmed cell death in Chlamydomonas reinhardtii. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 167:435-440. [PMID: 30368137 DOI: 10.1016/j.ecoenv.2018.10.062] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/14/2018] [Accepted: 10/16/2018] [Indexed: 06/08/2023]
Abstract
Plant allelochemicals effectively inhibit and/ or control algal growth, and have potential to use as algaecide. To uncover the lethal mechanism of 2 anti-algal compounds linalool and α-terpineol identified from Cinnamomum camphora extracts, and promote their development as algaecide, the H2O2 production, photosynthetic abilities, caspase-like activities, nuclear changes and DNA degradation were investigated in Chlamydomonas reinhardtii treated with the 2 compounds. H2O2 content burst in linalool treatment at 0.5 h and in α-terpineol treatment at 1 h, with increases of 2.7 folds and 1.3 folds, respectively, compared to that at 0 h. The photosynthetic pigments gradually degraded, and Fv/Fm gradually declined to zero, indicating that the cell death was not a necrosis due to the gradual disappearance of physiological process. In C. reinhardtii cells, the caspase-9-like and caspase-3-like were activated in the treatments with the 2 compounds for 1 h. With prolonging the treatment time, the fluorescent intensity of the cell nucleuses stained by DAPI gradually enhanced and then faded, and the genomic DNA isolated from the cells gradually degraded. These hallmarks indicated that the death of C. reinhardtii cells in linalool and α-terpineol treatments was a programmed cell death (PCD) triggered by the increased reactive oxygen species (ROS). Compared to α-terpineol treatment, linalool treatment showed stronger promoting effects on PCD at the same time point, which may be caused by the higher ROS content inducing higher caspase-9-like and caspase-3-like activities in a short time.
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Affiliation(s)
- Yueting Chen
- School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China
| | - Yuanyuan Weng
- School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China
| | - Min Zhou
- School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China
| | - Yiyu Meng
- School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China
| | - Jialu Liu
- School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China
| | - Lin Yang
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, Tianjin 300387, China
| | - Zhaojiang Zuo
- School of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, China.
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Chlorogenic acid protects against aluminum toxicity via MAPK/Akt signaling pathway in murine RAW264.7 macrophages. J Inorg Biochem 2018; 190:113-120. [PMID: 30428426 DOI: 10.1016/j.jinorgbio.2018.11.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 10/31/2018] [Accepted: 11/04/2018] [Indexed: 01/01/2023]
Abstract
Aluminum (Al), which may bring about damage to the macrophages, has been implicated in the development of immunological diseases. It has been reported that chlorogenic acid (CGA, 5‑caffeoylquinic acid, chemical formula: C16H18O9) is a natural antioxidant and chelating agent with the capacity against Al (III)-induced biotoxicity. The present study was carried out to investigate whether CGA could reduce AlCl3-induced cellular damage in RAW264.7 cells. After treatment with AlCl3, the inhibition rate of viability and phagocytic activity of RAW264.7 cells was 54.5% and 27.6%, respectively. Administration of CGA significantly improved the integrity and phagocytic activity, and attenuated the accumulation of intracellular Al(III) level and oxidative stress in Al(III)-treated cells. Furthermore, CGA significantly inhibited Al(III)-induced increase of phospho-Jun N-terminal kinase (p-JNK), a pro-apoptotic Bcl-2 family protein (Bad), cytochrome c and decrease of extracellular regulated protein kinases (ERK1/2), protein kinase B (Akt) protein expressions. These results showed that CGA has a protective effect against Al(III)-induced cytotoxicity through mitogen-activated protein kinase (MAPK)/Akt-mediated caspase pathways in RAW264.7 cells.
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Role of nitric oxide and hydrogen sulfide in plant aluminum tolerance. Biometals 2018; 32:1-9. [DOI: 10.1007/s10534-018-0156-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 10/29/2018] [Indexed: 10/28/2022]
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Li Q, Huang W, Xiong C, Zhao J. Transcriptome analysis reveals the role of nitric oxide in Pleurotus eryngii responses to Cd 2+ stress. CHEMOSPHERE 2018; 201:294-302. [PMID: 29525657 DOI: 10.1016/j.chemosphere.2018.03.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 02/12/2018] [Accepted: 03/03/2018] [Indexed: 05/19/2023]
Abstract
Pleurotus eryngii is widely cultivated in China. However, our understanding of its transcriptional response to heavy metal stress and the underlying mechanism of nitric oxide (NO) in enhancing its tolerance to heavy metals is limited. In the present study, RNA-seq was used to generate large transcript sequences from P. eryngii exposed to cadmium chloride (CdCl2) and exogenous NO. A total of 45,833 unigenes were assembled from the P. eryngii transcriptome, of which 32,333 (70.54%) unigenes matched known proteins in the nr database. Transcriptional analysis revealed that putative genes encoding heat shock proteins (HSPs) and genes participating in glycerolipid metabolism and steroid biosynthesis were significantly up-regulated in P. eryngii exposed to 50 μM Cd (P < 0.05). P. eryngii mycelia exposed to extremely high levels of heavy metals showed an increase in biomass when exogenous NO was added to the culture. The collaboration of putative oxidoreductase, dehydrogenase, reductase, transferase genes and transcription factors such as "GTPase activator activity", "transcription factor complex", "ATP binding", "GTP binding", and "enzyme activator activity", which were significantly up-regulated in samples induced by exogenous NO, contributed to the enhancement of P. eryngii tolerance to extremely high levels of heavy metals. The study provides a new insight into the transcriptional response of P. eryngii to extremely high levels of heavy metals and the mechanism of NO in enhancing heavy metal tolerance.
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Affiliation(s)
- Qiang Li
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China; Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, Sichuan, PR China
| | - Wenli Huang
- Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, Sichuan, PR China
| | - Chuan Xiong
- Biotechnology and Nuclear Technology Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, 610061, Sichuan, PR China
| | - Jian Zhao
- Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, PR China.
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He H, Huang W, Oo TL, Gu M, Zhan J, Wang A, He LF. Nitric oxide suppresses aluminum-induced programmed cell death in peanut ( Arachis hypoganea L.) root tips by improving mitochondrial physiological properties. Nitric Oxide 2018; 74:47-55. [DOI: 10.1016/j.niox.2018.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 01/08/2018] [Accepted: 01/14/2018] [Indexed: 10/18/2022]
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Pan CL, Yao SC, Xiong WJ, Luo SZ, Wang YL, Wang AQ, Xiao D, Zhan J, He LF. Nitric Oxide Inhibits Al-Induced Programmed Cell Death in Root Tips of Peanut ( Arachis hypogaea L.) by Affecting Physiological Properties of Antioxidants Systems and Cell Wall. Front Physiol 2017; 8:1037. [PMID: 29311970 PMCID: PMC5742856 DOI: 10.3389/fphys.2017.01037] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 11/29/2017] [Indexed: 12/19/2022] Open
Abstract
It has been reported that nitric oxide (NO) is a negative regulator of aluminum (Al)-induced programmed cell death (PCD) in peanut root tips. However, the inhibiting mechanism of NO on Al-induced PCD is unclear. In order to investigate the mechanism by which NO inhibits Al-induced PCD, the effects of co-treatment Al with the exogenous NO donor or the NO-specific scavenger on peanut root tips, the physiological properties of antioxidants systems and cell wall (CW) in root tip cells of NO inhibiting Al-induced PCD were studied with two peanut cultivars. The results showed that Al exposure induced endogenous NO accumulation, and endogenous NO burst increased antioxidant enzyme activity in response to Al stress. The addition of NO donor sodium nitroprusside (SNP) relieved Al-induced root elongation inhibition, cell death and Al adsorption in CW, as well as oxidative damage and ROS accumulation. Furthermore, co-treatment with the exogenous NO donor decreased MDA content, LOX activity and pectin methylesterase (PME) activity, increased xyloglucan endotransglucosylase (XET) activity and relative expression of the xyloglucan endotransglucosylase/hydrolase (XTH-32) gene. Taken together, exogenous NO alleviated Al-induced PCD by inhibiting Al adsorption in CW, enhancing antioxidant defense and reducing peroxidation of membrane lipids, alleviating the inhibition of Al on root elongation by maintaining the extensibility of CW, decreasing PME activity, and increasing XET activity and relative XTH-32 expression of CW.
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Affiliation(s)
- Chun-Liu Pan
- College of Agronomy, Guangxi University, Nanning, China
- College of Life Science and Technology, Guangxi University, Nanning, China
- Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- Key Laboratory of Crop Cultivation and Tillage, Guangxi Colleges and Universities, Nanning, China
| | - Shao-Chang Yao
- College of Agronomy, Guangxi University, Nanning, China
- College of Life Science and Technology, Guangxi University, Nanning, China
- Guangxi Botanical Garden of Medicinal Plants, Nanning, China
- Key Laboratory of Crop Cultivation and Tillage, Guangxi Colleges and Universities, Nanning, China
| | | | - Shu-Zhen Luo
- College of Agronomy, Guangxi University, Nanning, China
| | - Ya-Lun Wang
- College of Agronomy, Guangxi University, Nanning, China
| | - Ai-Qin Wang
- College of Agronomy, Guangxi University, Nanning, China
- Key Laboratory of Crop Cultivation and Tillage, Guangxi Colleges and Universities, Nanning, China
| | - Dong Xiao
- College of Agronomy, Guangxi University, Nanning, China
- Key Laboratory of Crop Cultivation and Tillage, Guangxi Colleges and Universities, Nanning, China
| | - Jie Zhan
- College of Agronomy, Guangxi University, Nanning, China
| | - Long-Fei He
- College of Agronomy, Guangxi University, Nanning, China
- Key Laboratory of Crop Cultivation and Tillage, Guangxi Colleges and Universities, Nanning, China
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