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Wang H, Xu C, Wen A, Du Y, Yuan S, Yu H, Guo Y, Cheng Y, Qian H, Yao W. The adsorption-desorption behavior of chlorothalonil in the cuticles of apple and red jujube. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 935:173195. [PMID: 38750752 DOI: 10.1016/j.scitotenv.2024.173195] [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: 07/11/2023] [Revised: 04/12/2024] [Accepted: 05/11/2024] [Indexed: 05/27/2024]
Abstract
The distribution fate of chlorothalonil (CHT) in the environment (soil and water) and fruits is controlled by the capacity of cuticles to adsorb and desorb CHT, which directly affects the safety of both the environment and fruits. Batch experiments were conducted to reveal the adsorption-desorption behaviors of CHT in the cuticles of apple and red jujube. The adsorption kinetics showed that both physisorption and chemisorption occurred during the adsorption process. Furthermore, the isothermal adsorption of CHT in the fruit cuticles followed the Freundlich model. The thermodynamic parameters (ΔG ≤ -26.16 kJ/mol, ΔH ≥ 31.05 kJ/mol, ΔS ≥ 0.20 kJ/(mol K) showed that the whole CHT adsorption process was spontaneous, and the hydrophobic interaction was predominant. The CHT adsorption capacity of the apple cuticle was higher than that of the red jujube cuticle, potentially due to the significantly higher alkanes content of apples than that of red jujubes. An appropriate ionic strength (0.01 moL/L) could induce a higher adsorption capacity. In addition, the desorption kinetics were shown to conform to a Quasi-first-order model, meaning that not all the adsorbed CHT could be easily desorbed. The desorption ratios in apple and red jujube cuticles were 41.38% and 35.64%, respectively. The results of Fourier-transformed infrared spectroscopy and X-ray photoelectron spectroscopy further confirmed that CHT could be adsorbed and retained in the fruit cuticles. Investigating the adsorption-desorption behavior of CHT in the apple and red jujube cuticles allowed to determine the ratio of its final distribution in the fruits and environment, providing a theoretical basis to evaluate the risk of residue pesticide.
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Affiliation(s)
- Huihui Wang
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Chang Xu
- China Academy of Launch Vehicle Technology, Beijing, China
| | - Aying Wen
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yuhang Du
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Shaofeng Yuan
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Hang Yu
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yahui Guo
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Yuliang Cheng
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - He Qian
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China
| | - Weirong Yao
- State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi, Jiangsu Province, China; School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu Province, China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, Wuxi, Jiangsu Province, China.
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Tausta SL, Fontaine K, Hillmer AT, Strobel SA. Fluoride transport in Arabidopsis thaliana plants is impaired in Fluoride EXporter (FEX) mutants. PLANT MOLECULAR BIOLOGY 2024; 114:17. [PMID: 38342783 PMCID: PMC10859346 DOI: 10.1007/s11103-023-01413-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 12/20/2023] [Indexed: 02/13/2024]
Abstract
Fluoride is an environmental toxin prevalent in water, soil, and air. A fluoride transporter called Fluoride EXporter (FEX) has been discovered across all domains of life, including bacteria, single cell eukaryotes, and all plants, that is required for fluoride tolerance. How FEX functions to protect multicellular plants is unknown. In order to distinguish between different models, the dynamic movement of fluoride in wildtype (WT) and fex mutant plants was monitored using [18F]fluoride with positron emission tomography. Significant differences were observed in the washout behavior following initial fluoride uptake between plants with and without a functioning FEX. [18F]Fluoride traveled quickly up the floral stem and into terminal tissues in WT plants. In contrast, the fluoride did not move out of the lower regions of the stem in mutant plants resulting in clearance rates near zero. The roots were not the primary locus of FEX action, nor did FEX direct fluoride to a specific tissue. Fluoride efflux by WT plants was saturated at high fluoride concentrations resulting in a pattern like the fex mutant. The kinetics of fluoride movement suggested that FEX mediates a fluoride transport mechanism throughout the plant where each individual cell benefits from FEX expression.
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Affiliation(s)
- S Lori Tausta
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, 06510, USA
- Institute of Biomolecular Design and Discovery, Yale University West Campus, West Haven, CT, 06516, USA
| | - Kathryn Fontaine
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, 330 Cedar Street, New Haven, CT, 06519, USA
- Yale PET Center, Yale University, 801 Howard Avenue, New Haven, CT, 06510, USA
| | - Ansel T Hillmer
- Department of Radiology and Biomedical Imaging, Yale School of Medicine, 330 Cedar Street, New Haven, CT, 06519, USA
- Yale PET Center, Yale University, 801 Howard Avenue, New Haven, CT, 06510, USA
- Department of Biomedical Engineering, Yale University, 17 Hillhouse Avenue, New Haven, CT, 06511, USA
- Department of Psychiatry, Yale School of Medicine, 300 George Street, New Haven, CT, 06510, USA
| | - Scott A Strobel
- Department of Molecular Biophysics and Biochemistry, Yale University, New Haven, CT, 06510, USA.
- Institute of Biomolecular Design and Discovery, Yale University West Campus, West Haven, CT, 06516, USA.
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Niu H, Zhan K, Cheng X, Deng Y, Hou C, Zhao M, Peng C, Chen G, Hou R, Li D, Wan X, Cai H. Selenium foliar application contributes to decrease ratio of water-soluble fluoride and improve physio-biochemical components in tea leaves. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115568. [PMID: 37832482 DOI: 10.1016/j.ecoenv.2023.115568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/24/2023] [Accepted: 10/08/2023] [Indexed: 10/15/2023]
Abstract
The tea plant accumulates elevated levels of fluoride (F) from environmental sources. Drinking tea containing high F levels poses a potential threat to human health. Selenium (Se) was applied by foliar spray to investigate its effects on F accumulation and physiology in tea plant. Foliar application of different forms of Se, i.e., Na2SeO3, Kappa-selenocarrageenan, Selenomethionine and Nanoselenium, reduced F content in tea leaves by 10.17 %-44.28 %, 16.12 %-35.41 %, 22.19 %-45.99 % and 22.24 %-43.82 %, respectively. Foliar spraying Se could increase F accumulation in pectin through increasing pectin content and pectin demethylesterification to bind more F in the cell wall, which decreased the proportion of water-soluble fluoride in tea leaves. Application of Se significantly decreased the contents of chromium (39.6 %-72.0 %), cadmium (48.3 %-84.4 %), lead (2.2 %-44.4 %) and copper (14.1 %-44.6 %) in tea leaves. Foliar spraying various forms of Se dramatically increased the Se content and was efficiently transformed into organic Se accounting for more than 80 % in tea leaves. All Se compounds increased peroxidase activity by 3.3 %-35.5 % and catalase activity by 2.6 %-99.4 %, reduced malondialdehyde content by 5.6 %-37.1 %, and increased the contents of chlorophyll by 0.65 %-31.8 %, carotenoids by 0.24 %-27.1 %, total catechins by 1.6 %-21.0 %, EGCG by 4.4 %-17.6 % and caffeine by 9.1 %-28.6 %. These results indicated that Se application could be served as a potential efficient and safe strategy diminishing the concentration of F in tea leaves.
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Affiliation(s)
- Huiliang Niu
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Kui Zhan
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Xin Cheng
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Yangjuan Deng
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Chaoyuan Hou
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Mingming Zhao
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Chuanyi Peng
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China; Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Guijie Chen
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Ruyan Hou
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China; Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Daxiang Li
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China
| | - Xiaochun Wan
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China.
| | - Huimei Cai
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, Anhui, China; Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science and Technology, Anhui Agricultural University, Hefei 230036, Anhui, China.
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Wang M, Liu L, Chen D, Hamid Y, Shan A, Chen Z, Yu S, Feng Y, Yang X. Fluorine in 20 vegetable species and 25 lettuce cultivars grown on a contaminated field adjacent to a brick kiln. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2023; 45:1655-1667. [PMID: 35585373 DOI: 10.1007/s10653-022-01268-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/25/2022] [Indexed: 06/15/2023]
Abstract
Crops grown in areas contaminated by industrial and agricultural fluorine (F) have gained increasing attention, however F levels in different vegetables and lettuce cultivars are rarely reported. In situ-field experiment was designed to investigate the concentration, translocation, and health risks of F in 20 vegetable species and 25 lettuce cultivars. After the growth of 150 d for vegetables and 60 d for lettuce, F concentration (12.83-138.07 mg kg-1), translocation factor (0.16-6.32), and bio-concentration factor (1.90-13.73) varied significantly between vegetable species and lettuce cultivars. According to the hazard quotient values (based on the reference dose of F), all the vegetable species appears to pose no risk to human health, while 60% of the lettuce cultivars present potential health risks to children. Therefore, the limit value of F in vegetables for adults and children should be enacted in the future. Moreover, cabbage, green radish, spinach, leaf mustard, and Frisee lettuce (Huayu) were considered as a safe dietary product. These findings contributed to the safe cultivation of vegetables and the control of fluorosis in the areas contaminated by industrial and agricultural activities.
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Affiliation(s)
- Mei Wang
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Lei Liu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Dan Chen
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Yasir Hamid
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Anqi Shan
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Zhiqin Chen
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Song Yu
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Ying Feng
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou, 310058, China
| | - Xiaoe Yang
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Zijingang Campus, Yuhangtang Road 866, Hangzhou, 310058, China.
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Liu Y, Cao D, Ma L, Jin X. Upregulation of protein N-glycosylation plays crucial roles in the response of Camellia sinensis leaves to fluoride. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 183:138-150. [PMID: 35597102 DOI: 10.1016/j.plaphy.2022.05.009] [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: 11/29/2021] [Revised: 05/06/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
The tea plant (Camellia sinensis) is one of the three major beverage crops in the world with its leaves consumption as tea. However, it can hyperaccumulate fluoride with about 98% fluoride deposition in the leaves. Our previously studies found that cell wall proteins (CWPs) might play a central role in fluoride accumulation/detoxification in C. sinensis. CWP is known to be glycosylated, however the response of CWP N-glycosylation to fluoride remains unknown in C. sinensis. In this study, a comparative N-glycoproteomic analysis was performed through HILIC enrichment coupled with UPLC-MS/MS based on TMT-labeling approach in C. sinensis leaves. Totally, 237 N-glycoproteins containing 326 unique N-glycosites were identified. 73.4%, 18.6%, 6.3% and 1.7% of these proteins possess 1, 2, 3, and ≥4 modification site, respectively. 93.2% of these proteins were predicted to be localized in the secretory pathway and 78.9% of them were targeted to the cell wall and the plasma membrane. 133 differentially accumulated N-glycosites (DNGSs) on 100 N-glycoproteins (DNGPs) were detected and 85.0% of them exhibited upregulated expression after fluoride treatment. 78.0% DNGPs were extracellular DNGPs, which belonged to CWPs, and 53.0% of them were grouped into protein acting on cell wall polysaccharides, proteases and oxido-reductases, whereas the majority of the remaining DNGPs were mainly related to N-glycoprotein biosynthesis, trafficking and quality control. Our study shed new light on the N-glycoproteome study, and revealed that increased N-glycosylation abundance of CWPs might contribute to fluoride accumulation/detoxification in C. sinensis leave.
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Affiliation(s)
- Yanli Liu
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
| | - Dan Cao
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Linlong Ma
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China
| | - Xiaofang Jin
- Institute of Fruit and Tea, Hubei Academy of Agricultural Sciences, Wuhan, 430064, China.
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Liu Y, Ma L, Cao D, Gong Z, Fan J, Hu H, Jin X. Investigation of cell wall proteins of C. sinensis leaves by combining cell wall proteomics and N-glycoproteomics. BMC PLANT BIOLOGY 2021; 21:384. [PMID: 34416854 PMCID: PMC8377857 DOI: 10.1186/s12870-021-03166-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 08/10/2021] [Indexed: 05/27/2023]
Abstract
BACKGROUND C. sinensis is an important economic crop with fluoride over-accumulation in its leaves, which poses a serious threat to human health due to its leaf consumption as tea. Recently, our study has indicated that cell wall proteins (CWPs) probably play a vital role in fluoride accumulation/detoxification in C. sinensis. However, there has been a lack in CWP identification and characterization up to now. This study is aimed to characterize cell wall proteome of C. sinensis leaves and to develop more CWPs related to stress response. A strategy of combined cell wall proteomics and N-glycoproteomics was employed to investigate CWPs. CWPs were extracted by sequential salt buffers, while N-glycoproteins were enriched by hydrophilic interaction chromatography method using C. sinensis leaves as a material. Afterwards all the proteins were subjected to UPLC-MS/MS analysis. RESULTS A total of 501 CWPs and 195 CWPs were identified respectively by cell wall proteomics and N-glycoproteomics profiling with 118 CWPs in common. Notably, N-glycoproteomics is a feasible method for CWP identification, and it can enhance CWP coverage. Among identified CWPs, proteins acting on cell wall polysaccharides constitute the largest functional class, most of which might be involved in cell wall structure remodeling. The second largest functional class mainly encompass various proteases related to CWP turnover and maturation. Oxidoreductases represent the third largest functional class, most of which (especially Class III peroxidases) participate in defense response. As expected, identified CWPs are mainly related to plant cell wall formation and defense response. CONCLUSION This was the first large-scale investigation of CWPs in C. sinensis through cell wall proteomics and N-glycoproteomics. Our results not only provide a database for further research on CWPs, but also an insight into cell wall formation and defense response in C. sinensis.
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Affiliation(s)
- Yanli Liu
- Fruit and Tea Research Institute, Hubei Academy of Agricultural Sciences, No. 10 Nanhu Road, Wuhan, 430064, Hubei, People's Republic of China
| | - Linlong Ma
- Fruit and Tea Research Institute, Hubei Academy of Agricultural Sciences, No. 10 Nanhu Road, Wuhan, 430064, Hubei, People's Republic of China
| | - Dan Cao
- Fruit and Tea Research Institute, Hubei Academy of Agricultural Sciences, No. 10 Nanhu Road, Wuhan, 430064, Hubei, People's Republic of China
| | - Ziming Gong
- Fruit and Tea Research Institute, Hubei Academy of Agricultural Sciences, No. 10 Nanhu Road, Wuhan, 430064, Hubei, People's Republic of China
| | - Jing Fan
- Fruit and Tea Research Institute, Hubei Academy of Agricultural Sciences, No. 10 Nanhu Road, Wuhan, 430064, Hubei, People's Republic of China
| | - Hongju Hu
- Fruit and Tea Research Institute, Hubei Academy of Agricultural Sciences, No. 10 Nanhu Road, Wuhan, 430064, Hubei, People's Republic of China
| | - Xiaofang Jin
- Fruit and Tea Research Institute, Hubei Academy of Agricultural Sciences, No. 10 Nanhu Road, Wuhan, 430064, Hubei, People's Republic of China.
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Luo J, Ni D, Li C, Du Y, Chen Y. The relationship between fluoride accumulation in tea plant and changes in leaf cell wall structure and composition under different fluoride conditions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 270:116283. [PMID: 33341550 DOI: 10.1016/j.envpol.2020.116283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 12/09/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Tea plant is capable of hyper-accumulating fluoride (F) in leaves, suggesting drinking tea may cause excessive F intake in our body and threaten the health. This study investigated the changes in the structure, composition, and F content in the leaf cell wall of the tea (Camellia sinensis) under different F conditions to demonstrate the role of cell wall in F enrichment in tea plants. The cell wall was shown as the main part for F accumulation (67%-92%), with most of F distributed in the pectin fraction (56%-71%). With increasing F concentration, a significant increase (p < 0.05) was observed in the F content of cell wall and its components, the level of cell wall metal ions (i.e. Cu, Mg, Zn, Al, Ca, Ba, Mn), as well as the content of total cell wall materials, cellulose, and pectin. Meanwhile, the level of Cu, Mg, Zn, pectin, and cellulose was significantly positively correlated with the F content in the leaf cell wall. F addition was shown to increase the fluorescence intensity of LM19 and 2F4 antibody-labeled low-methylesterified homogalacturonans (HGs), while decrease LM20-labeled high-methylesterified HGs, coupled with an increase in the activity and gene expression of pectin methyl esterases (PMEs) in tea leaves. All these results suggest that F addition can increase pectin content and demethylesterification, leading to increased absorption of metal cations and chelation of F in the cell wall through the action of metal ions.
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Affiliation(s)
- Jinlei Luo
- Key Laboratory of Horticultural Plant Biology, Ministry of Education & Key Laboratory of Urban Agriculture in Central China, Ministry of Agriculture, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Dejiang Ni
- Key Laboratory of Horticultural Plant Biology, Ministry of Education & Key Laboratory of Urban Agriculture in Central China, Ministry of Agriculture, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Chunlei Li
- College of Agronomy, Weifang University of Science & Technology, Shouguang, 262700, China
| | - Yaru Du
- Key Laboratory of Horticultural Plant Biology, Ministry of Education & Key Laboratory of Urban Agriculture in Central China, Ministry of Agriculture, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yuqiong Chen
- Key Laboratory of Horticultural Plant Biology, Ministry of Education & Key Laboratory of Urban Agriculture in Central China, Ministry of Agriculture, College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, 430070, China.
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Peng CY, Xu XF, Ren YF, Niu HL, Yang YQ, Hou RY, Wan XC, Cai HM. Fluoride absorption, transportation and tolerance mechanism in Camellia sinensis, and its bioavailability and health risk assessment: a systematic review. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:379-387. [PMID: 32623727 DOI: 10.1002/jsfa.10640] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/27/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
Tea is the one of the most popular non-alcoholic caffeinated beverages in the world. Tea is produced from the tea plant (Camellia sinensis (L.) O. Kuntze), which is known to accumulate fluoride. This article systematically analyzes the literature concerning fluoride absorption, transportation and fluoride tolerance mechanisms in tea plants. Fluoride bioavailability and exposure levels in tea infusions are also reviewed. The circulation of fluoride within the tea plantation ecosystems is in a positive equilibrium, with greater amounts of fluoride introduced to tea orchards than removed. Water extractable fluoride and magnesium chloride (MgCl2 ) extractable fluoride in plantation soil are the main sources of absorption by tea plant root via active trans-membrane transport and anion channels. Most fluoride is readily transported through the xylem as F- /F-Al complexes to leaf cell walls and vacuole. The findings indicate that tea plants employ cell wall accumulation, vacuole compartmentalization, and F-Al complexes to co-detoxify fluoride and aluminum, a possible tolerance mechanism through which tea tolerates higher levels of fluoride than most plants. Furthermore, dietary and endogenous factors influence fluoride bioavailability and should be considered when exposure levels of fluoride in commercially available dried tea leaves are interpreted. The relevant current challenges and future perspectives are also discussed. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Chuan-Yi Peng
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, P. R. China
- Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, P. R. China
| | - Xue-Feng Xu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, P. R. China
- Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, P. R. China
| | - Yin-Feng Ren
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, P. R. China
- Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, P. R. China
| | - Hui-Liang Niu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, P. R. China
- Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, P. R. China
| | - Yun-Qiu Yang
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, P. R. China
- Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, P. R. China
| | - Ru-Yan Hou
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, P. R. China
- Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, P. R. China
| | - Xiao-Chun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, P. R. China
- Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, P. R. China
| | - Hui-Mei Cai
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, P. R. China
- Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, P. R. China
- Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, P. R. China
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9
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Peng CY, Xu XF, Zhu HY, Ren YF, Niu HL, Hou RY, Wan XC, Cai HM. Metabolics and ionomics responses of tea leaves (Camellia sinensis (L.) O. Kuntze) to fluoride stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 158:65-75. [PMID: 33296847 DOI: 10.1016/j.plaphy.2020.11.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 11/17/2020] [Indexed: 06/12/2023]
Abstract
Tea plant (Camellia sinensis (L.) O. Kuntze) is known to accumulate high concentrations of fluoride (F) in its leaves; however, the underlying mechanism of F accumulation remains unclear. The main objective of this study was to investigate the homeostatic self-defense mechanisms of tea leaves to F supplementation (0, 5, 20, and 50 mgL-1) by metabolomics and ionomics. We identified a total of 96 up-regulated and 40 down-regulated metabolites in tea leaves treated with F. Of these different compounds, minor polypeptides, carbohydrates and amino acids played valuable roles in the F-tolerating mechanism of tea plant. After F treatments, the concentrations of sodium (Na), ferrum (Fe), manganese (Mn), and molybdenum (Mo) were significantly increased in tea leaves, whereas the aluminum (Al) was decreased. These findings suggest that the ionic balance and metabolites are attributable to the development of F tolerance, providing new insight into tea plant adaptation to F stress.
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Affiliation(s)
- Chuan-Yi Peng
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, 230036, People's Republic of China.
| | - Xue-Feng Xu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, 230036, People's Republic of China
| | - Hai-Yan Zhu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, 230036, People's Republic of China
| | - Yin-Feng Ren
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, 230036, People's Republic of China
| | - Hui-Liang Niu
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China
| | - Ru-Yan Hou
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, 230036, People's Republic of China
| | - Xiao-Chun Wan
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China.
| | - Hui-Mei Cai
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Key Laboratory of Food Nutrition and Safety, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei, 230036, Anhui, People's Republic of China; Anhui Province Key Lab of Analysis and Detection for Food Safety, Hefei, 230036, People's Republic of China.
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10
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Niu H, Zhan K, Xu W, Peng C, Hou C, Li Y, Hou R, Wan X, Cai H. Selenium treatment modulates fluoride distribution and mitigates fluoride stress in tea plant (Camellia sinensis (L.) O. Kuntze). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 267:115603. [PMID: 33254693 DOI: 10.1016/j.envpol.2020.115603] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/24/2020] [Accepted: 09/02/2020] [Indexed: 06/12/2023]
Abstract
Tea plants (Camellia sinensis (L.) O. Kuntze) can hyperaccumulate fluoride (F). The accumulation of F in tea leaves may induce serious health problems in tea consumers. It has been reported that selenium (Se) could reduce the accumulation of heavy metals in plants. Thus, the aim of this study was to investigate whether exogenous Se could reduce F accumulation in tea plant. The results showed that Se treatment could decrease F content in tea leaves, increase F accumulation in roots, decrease the proportion of water-soluble F in tea leaves and increase the Se content. Low F levels promoted the accumulation of Se in tea plants. Se treatment could modulate F-induced oxidative injury by decreasing malondialdehyde level and increasing the activities of superoxide dismutase, peroxidase and catalase. Moreover, Se inhibited F-induced increase in leaf iron, calcium, aluminum, leaf and root magnesium and lead contents. These results showed that Se application could decrease F content and increase Se content in tea leaves, which may be served as a novel strategy for production of healthy tea.
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Affiliation(s)
- Huiliang Niu
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Kui Zhan
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Wei Xu
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Chuanyi Peng
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Chaoyuan Hou
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Yeyun Li
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Ruyan Hou
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Xiaochun Wan
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China
| | - Huimei Cai
- School of Tea & Food Science and Technology, Anhui Agricultural University, State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei, 230036, Anhui, China.
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11
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Li D, Zhang S, Adyel TM, Liu K, Gong L. Negative effects on the leaves of submerged macrophyte and associated biofilms growth at high nitrate induced-stress. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 226:105559. [PMID: 32652412 DOI: 10.1016/j.aquatox.2020.105559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 05/20/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
High nitrate (NO3--N) concentration is a growing aquatic risk concern worldwide. However, adverse effects of high NO3--N concentration on submerged macrophytes-epiphytic biofilms are unclear. In this study, the alterations in physiological changes, biofilms formation and chemical compositions were investigated on leaves of Vallisneria asiatica exposed to different NO3--N concentrations. The findings showed that 10 mg L-1NO3--N resulted in low photosynthetic efficiency by inhibiting chlorophyll content 26.2 % and decreased intrinsic efficiency of photosystem II significantly at 14th day post treatment. Malondialdehyde, several antioxidant enzyme activities (i.e., superoxide dismutase, peroxidase and catalase), and secondary metabolites (i.e., phenolic compounds and anthocyanin) were all significantly up-regulated with 10 mg L-1NO3--N, implied oxidative stress were stimulated. However, no significant alterations in these indicators were observed with 5 mg L-1NO3--N. Compared to control, 10 mg L-1NO3--N concentration significantly stimulated microbes growth in biofilm and reduced the roughness of leaf-biofilms surface, but it had little effect on the biofilms distribution (from single clone to blocks) as revealed by scanning electron microscope and multifractal analysis. Results from X-ray photoelectron spectroscopy analysis showed that the percentage of P, Cl, K and the ratio of O1 (-O-) /O2 (C = O) were higher in leaves of control than treatments with 10 mg L-1NO3--N, indicating that 10 mg L-1NO3--N concentration exhibited significant inhibition of chemical activity and nutrient uptake of the leaf surfaces. Overall, these results demonstrated that high NO3--N does stimulate the biofilm growth and can cause negative impacts on submerged macrophytes growth.
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Affiliation(s)
- Dingxin Li
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China
| | - Songhe Zhang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Tanveer M Adyel
- Department of Civil Engineering, Monash University, 23 College Walk, Clayton, VIC, 3800, Australia
| | - Kaihui Liu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China
| | - Lixue Gong
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China
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12
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Peng Y, Xi J, Sun Y, Chen G, Li D, Peng C, Wan X, Cai H. Tea components influencing bioavailability of fluoride and potential transport mechanism in the Caco‐2 cell line model. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14466] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yun Peng
- State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural University Hefei 230036 China
| | - Junjun Xi
- State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural University Hefei 230036 China
| | - Yue Sun
- State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural University Hefei 230036 China
| | - Guijie Chen
- College of Food Science and Technology Nanjing Agricultural University Nanjing 210095 China
| | - Daxiang Li
- State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural University Hefei 230036 China
| | - Chuanyi Peng
- State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural University Hefei 230036 China
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural University Hefei 230036 China
| | - Huimei Cai
- State Key Laboratory of Tea Plant Biology and Utilization Anhui Agricultural University Hefei 230036 China
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Xi J, Zhang L, Peng C, Zhou J, Peng Y, Xu L, Chen B, Meng Q, Hou R, Li D, Zhang Y, Wan X, Cai H. Flavor augmentations affect fluoride bioavailability from brewed dark tea. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2019.04.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhu J, Xing A, Wu Z, Tao J, Ma Y, Wen B, Zhu X, Fang W, Wang Y. CsFEX, a Fluoride Export Protein Gene from Camellia sinensis, Alleviates Fluoride Toxicity in Transgenic Escherichia coli and Arabidopsis thaliana. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:5997-6006. [PMID: 31056906 DOI: 10.1021/acs.jafc.9b00509] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A fluoride export gene ( CsFEX) was newly found and isolated from Camellia sinensis, and its functions in detoxifying F were investigated in transgenic Escherichia coli and Arabidopsis thaliana. CsFEX contains two crcB domains, which is the typical structure in plants. The expression of CsFEX in C. sinensis is tissue-specific and related to maturity of leaves, and its expression is significantly induced by F treatments in different tissues of C. sinensis, particularly in leaves. Additionally, the growth of C. sinensis, E. coli, and A. thaliana can all be inhibited by F treatment. However, the growth of CsFEX-overexpression E. coli was increased with lower F content under F treatment compared to the control. Similarly, the germination and growth of CsFEX-overexpression A. thaliana were enhanced with lower F content under F treatment compared to the wild type. CsFEX relieves F toxicity in the transgenic E. coli and A. thaliana by alleviating F accumulation.
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Affiliation(s)
- Jiaojiao Zhu
- College of Horticulture , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Anqi Xing
- College of Horticulture , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Zichen Wu
- College of Horticulture , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Jing Tao
- College of Horticulture , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Yuanchun Ma
- College of Horticulture , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Bo Wen
- College of Horticulture , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Xujun Zhu
- College of Horticulture , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Wanping Fang
- College of Horticulture , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
| | - Yuhua Wang
- College of Horticulture , Nanjing Agricultural University , Nanjing , Jiangsu 210095 , People's Republic of China
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Liu Y, Cao D, Ma L, Jin X, Yang P, Ye F, Liu P, Gong Z, Wei C. TMT-based quantitative proteomics analysis reveals the response of tea plant (Camellia sinensis) to fluoride. J Proteomics 2018; 176:71-81. [PMID: 29408313 DOI: 10.1016/j.jprot.2018.02.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 01/29/2018] [Accepted: 02/01/2018] [Indexed: 01/19/2023]
Abstract
The tea plant is a fluoride hyperaccumulator, and fluoride accumulation in its leaves is closely related to human health. To dissect molecular mechanisms underlying fluoride accumulation/detoxification, the leaves of tea seedlings exposed to different fluoride treatments for 30 days were sampled for physiological and proteomics analyses. The results showed that fluoride had no adverse effects on the growth of tea seedlings in spite of high content fluoride accumulation in their leaves. Through TMT coupled with UPLC MS/MS, 189 differentially accumulated proteins were quantified, of which 41 and 148 were localized in the cell wall and cellular compartments respectively. 41 cell wall proteins were mainly conductive to cell wall structure rearrangement, signaling modulation and the protection cells from damages; 148 cellular compartments proteins mainly contributed to diverse metabolisms reprogramming, energy reallocation and plant defense. Notably, upregulation of several proteins including GHs, smHSPs, DRT100, YLS2-like, primary amine oxidase, GDSL esterase/lipases and citrate synthase probably enhanced the defense of tea seedlings against fluoride. Collectively, our results presented a comprehensive proteomics analysis on the leaves of tea seedlings in response to fluoride, which would contribute to further deciphering of molecular mechanisms underlying fluoride accumulation/detoxification in tea plant. SIGNIFICANCE The tea plant (Camellia sinensis) is an important economic crop with its made tea occupying up the third non-alcohol beverage in the world. Tea plant is also a fluoride hyperaccumulator with up to 98% fluoride accumulation in the leaves by initiative absorption. Due to the fact that about 40% to 90% of fluoride could be readily released into tea infusion and then absorbed by human body, overaccumulation of fluoride in tea leaves is closely related to human health. Therefore, it is very necessary to deeply dissect the mechanisms underlying fluoride accumulation/detoxification in tea plant. Previously, numerous studies were conducted to investigate fluoride specification and fluoride localization of tea plant at morphological, physiological and biochemical levels, which documented that fluoride was majorly immobilized in the cell walls and stored in the vacuoles in the form of fluoride-ligands complexes. However, the molecular mechanisms governing cell wall immobilization and vacuolar compartmentation of fluoride were still remaining unknown. Thus, a quantitative proteomics study into the leaves of tea seedlings upon exposure to fluoride was performed in current study. Our results showed that 41 and 148 of 189 differentially accumulated proteins were targeted into the cell wall and cellular compartments respectively, revealing that cell wall proteins and cellular compartments proteins played crucial roles in the response of tea seedlings to fluoride. Our results were also in good agreement with the idea that the cell wall was involved in fluoride accumulation/detoxification in tea plant. However, the functions of key interested differentially accumulated proteins need be further analyzed in follow-up work.
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Affiliation(s)
- Yanli Liu
- Institute of Fruit and tea, Hubei Academy of Agricultural sciences, Wuhan 430209, China
| | - Dan Cao
- Institute of Fruit and tea, Hubei Academy of Agricultural sciences, Wuhan 430209, China
| | - Linlong Ma
- Institute of Fruit and tea, Hubei Academy of Agricultural sciences, Wuhan 430209, China
| | - Xiaofang Jin
- Institute of Fruit and tea, Hubei Academy of Agricultural sciences, Wuhan 430209, China.
| | - Pingfang Yang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, The Chinese Academy of Sciences, Moshan, 430074, China
| | - Fei Ye
- Institute of Fruit and tea, Hubei Academy of Agricultural sciences, Wuhan 430209, China
| | - Panpan Liu
- Institute of Fruit and tea, Hubei Academy of Agricultural sciences, Wuhan 430209, China
| | - Ziming Gong
- Institute of Fruit and tea, Hubei Academy of Agricultural sciences, Wuhan 430209, China
| | - Chaoling Wei
- State Key Laboratory of Tea Plant Biology and Utilization, Anhui Agricultural University, Hefei 230036, China.
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Gong L, Zhang S, Chen D, Liu K, Lu J. Response of biofilms-leaves of two submerged macrophytes to high ammonium. CHEMOSPHERE 2018; 192:152-160. [PMID: 29101854 DOI: 10.1016/j.chemosphere.2017.09.147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 09/20/2017] [Accepted: 09/30/2017] [Indexed: 06/07/2023]
Abstract
Submerged macrophytes can provide attached surface for biofilms (known as periphyton) growth. In the present study, the alterations in biofilms formation, and chemical compositions and physiological responses were investigated on leaves of Vallisneria asiatica and Hydrilla verticillata exposed to 0.1 mg L-1 (control) or with 10 mg L-1 NH4+-N for 13 days. Results from physiological and biochemical indices (content of H2O2, malondialdehyde, total chlorophyll and activity of superoxide dismutase, catalase and peroxidase) showed that high ammonium caused oxidative damage to leaves of two species of plant. Multifractal analysis (based on scanning electron microscope images) showed that for the same plant, the values of width △α (△α = αmax-αmin) of the f(α) and Δf (Δf = f(αmin)-f(αmax)) were smaller on leaves surface of two species of plant treated with 10 mg L-1 NH4+-N for 13 days than their controls, suggesting high ammonium treatments reduced morphological heterogeneity of leaf surface and enhanced area of the colony-like biofilms. X-ray photoelectron spectroscopy analysis showed that C, O, N and P were dominant elements on leaves surface of two species of plant and ammonium application increased the percentage of C but decreased that of O. High ammonium increased C1 (C-C or C-H) percentage but decreased C2 (C-O) and C3 (O-C-O or C=O) percentage on leaves surface of two species of plant, indicating that ammonium stress changed the surface chemical states and thus might reduce the capacity of leaves to adsorb nutrients from water column. Our results provided useful information to understand ammonium induced toxicity to submerged macrophytes.
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Affiliation(s)
- Lixue Gong
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China
| | - Songhe Zhang
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China.
| | - Deqiang Chen
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China
| | - Kaihui Liu
- Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, Nanjing, 210098, China
| | - Jian Lu
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, Shandong, 264003, PR China
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17
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Zhang Y, Xiao W, Ji G, Gao C, Chen X, Cao Y, Han L. Effects of multiscale-mechanical grinding process on physicochemical properties of black tea particles and their water extracts. FOOD AND BIOPRODUCTS PROCESSING 2017. [DOI: 10.1016/j.fbp.2017.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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