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Zhang Y, Li C, Ji X, Yun C, Wang M, Luo X. The knowledge domain and emerging trends in phytoremediation: a scientometric analysis with CiteSpace. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:15515-15536. [PMID: 32078132 DOI: 10.1007/s11356-020-07646-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 01/07/2020] [Indexed: 05/24/2023]
Abstract
As a cost-effective, environmentally friendly remediation technology, phytoremediation is defined as the use of green plants to remove pollutants from the environment or render them harmless and has been applied to a variety of contaminated sites throughout the world. There is a prominent phenomenon in which publications about phytoremediation increase each year and involve an increasing number of subject categories. This paper adopts the scientometric analysis method to assess the current state and explore the trends of phytoremediation research based on the bibliographic records retrieved from the Web of Science Core Collection (WoSCC). The results of this paper clearly answer the following questions. (1) What are the publishing characteristics of research on the topic of phytoremediation? What are the characteristics of academic collaboration in phytoremediation research? (2) What are the characteristics and development trends of phytoremediation research? (3) What are the hotspots and frontiers of phytoremediation research? Overall, the research method provides a new approach for the assessment of the performance of phytoremediation research. These results may help new researchers quickly integrate into the field of phytoremediation, as they can easily grasp the frontiers of phytoremediation research and obtain more valuable scientific information. This study also provides references for the follow-up research of relevant researchers.
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Affiliation(s)
- Yu Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, People's Republic of China
| | - Chen Li
- School of Chemistry and Environmental Science, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, People's Republic of China.
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, People's Republic of China.
- Engineering Research Center of Biomass Materials, Ministry of Education, Mianyang, 621010, Sichuan, People's Republic of China.
- Shaanxi Key Laboratory of Catalysis, Hanzhong, 723001, Shaanxi, People's Republic of China.
| | - Xiaohui Ji
- School of Chemistry and Environmental Science, Shaanxi University of Technology, Hanzhong, 723001, Shaanxi, People's Republic of China
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, People's Republic of China
- Engineering Research Center of Biomass Materials, Ministry of Education, Mianyang, 621010, Sichuan, People's Republic of China
- Shaanxi Key Laboratory of Catalysis, Hanzhong, 723001, Shaanxi, People's Republic of China
| | - Chaole Yun
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, People's Republic of China
| | - Maolin Wang
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang, 621010, Sichuan, People's Republic of China
- Engineering Research Center of Biomass Materials, Ministry of Education, Mianyang, 621010, Sichuan, People's Republic of China
| | - Xuegang Luo
- Engineering Research Center of Biomass Materials, Ministry of Education, Mianyang, 621010, Sichuan, People's Republic of China
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Sharma A, Nagpal AK. Contamination of vegetables with heavy metals across the globe: hampering food security goal. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2020; 57:391-403. [PMID: 32116349 PMCID: PMC7016143 DOI: 10.1007/s13197-019-04053-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/17/2019] [Accepted: 08/21/2019] [Indexed: 11/26/2022]
Abstract
Food Security is a multifaceted aspect covering nutrition, availability, sufficiency, accessibility and safety. Millennium Development Goals as framed by United Nations focused to attain food security for all. The biggest hindrance in attaining food security was less productivity due to lack of enough resources. In order to increase the availability and produce sufficient food, malpractices like growing food on contaminated land or using untreated wastewater for irrigation came into play. Such practices have led to the transfer of heavy metals, pathogens and other harmful toxins to food crops. Various studies across the world have documented high concentration of heavy metals in vegetable crops. Root tubers and succulent stems are hyperaccumulators of heavy metals and thus tend to pose health hazard to the consuming population. In many instances the content of toxic metals in vegetables is much beyond permissible limits. Hazard quotient assessment in various studies has shown that consumption of these vegetables can be toxic to both adults and children. So, the question arises are we really attaining the global food security? There is a need to find a solution to produce sufficient, safe and nutritious food for the civilization so as to meet the goal of "zero hunger".
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Affiliation(s)
- Ashita Sharma
- Department of Environmental Sciences, Chandigarh University, Mohali, India
| | - Avinash Kaur Nagpal
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, India
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Heshmati A, Mehri F, Karami-Momtaz J, Khaneghah AM. Concentration and Risk Assessment of Potentially Toxic Elements, Lead and Cadmium, in Vegetables and Cereals Consumed in Western Iran. J Food Prot 2020; 83:101-107. [PMID: 31855614 DOI: 10.4315/0362-028x.jfp-19-312] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The concentration of cadmium (Cd) and lead (Pb) in vegetable (potatoes, onions, tomatoes, lettuce, leeks, and carrots) and cereal (wheat and rice) samples collected from Iran were investigated by a graphite furnace atomic absorption spectrophotometer. In addition, we determined the health risks due to exposure to Cd and Pb through vegetable and cereal consumption by computing the estimated daily intake, the target hazard quotient (THQ), the total THQ, and the margin of exposure. The mean concentrations of Pb in potato, onion, tomato, lettuce, leek, carrot, wheat, and rice samples were measured as 0.029 ± 0.011, 0.016 ± 0.012, 0.007 ± 0.005, 0.022 ± 0.020, 0.040 ± 0.048, 0.029 ± 0.025, 0.123 ± 0.120, and 0.097 ± 0.059 mg kg-1 wet weight, respectively, and all were below the maximum allowable concentrations set by the European Union. The mean concentrations of Cd in potatoes, onions, tomatoes, lettuce, leeks, carrots, wheat, and rice samples were measured as 0.022 ± 0.013, 0.011 ± 0.009, 0.003 ± 0.003, 0.007 ± 0.005, 0.015 ± 0.024, 0.013 ± 0.011, 0.046 ± 0.043, and 0.049 ± 0.04 mg kg-1 wet weight, respectively, and all were below the permissible levels established by the European Union. The corresponding values for the estimated daily intake of Cd were acceptable and lower than the provisional tolerable daily intake. The THQ and total THQ values of Cd through consumption of all vegetables and cereals were lower than 1. The margin of exposure values for Pb in samples were >1, showing no significant human health risks for both potentially toxic elements. The findings of this study indicated there is no risk associated with exposure to Pb and Cd through the intake of selected vegetables and cereals in western Iran.
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Affiliation(s)
- Ali Heshmati
- Department of Nutrition and Food Safety, School of Medicine, Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Fereshteh Mehri
- Food and Drug Control Laboratory, Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Javad Karami-Momtaz
- Food and Drug Control Laboratory, Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Amin Mousavi Khaneghah
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Rua Monteiro Lobato, 80, P.O. Box 6121, Campinas, São Paulo, 13083-862, Brazil (ORCID: https://orcid.org/0000-0001-5769-0004 [A.M.K.])
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Ding H, Zhu R, Dong J, Bi D, Jiang L, Zeng J, Huang Q, Liu H, Xu W, Wu L, Kan X. Next-Generation Genome Sequencing of Sedum plumbizincicola Sheds Light on the Structural Evolution of Plastid rRNA Operon and Phylogenetic Implications within Saxifragales. PLANTS (BASEL, SWITZERLAND) 2019; 8:E386. [PMID: 31569538 PMCID: PMC6843225 DOI: 10.3390/plants8100386] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/27/2019] [Accepted: 09/28/2019] [Indexed: 01/21/2023]
Abstract
The genus Sedum, with about 470 recognized species, is classified in the family Crassulaceae of the order Saxifragales. Phylogenetic relationships within the Saxifragales are still unresolved and controversial. In this study, the plastome of S. plumbizincicola was firstly presented, with a focus on the structural analysis of rrn operon and phylogenetic implications within the order Saxifragaceae. The assembled complete plastome of S. plumbizincicola is 149,397 bp in size, with a typical circular, double-stranded, and quadripartite structure of angiosperms. It contains 133 genes, including 85 protein-coding genes (PCGs), 36 tRNA genes, 8 rRNA genes, and four pseudogenes (one ycf1, one rps19, and two ycf15). The predicted secondary structure of S. plumbizincicola 16S rRNA includes three main domains organized in 74 helices. Further, our results confirm that 4.5S rRNA of higher plants is associated with fragmentation of 23S rRNA progenitor. Notably, we also found the sequence of putative rrn5 promoter has some evolutionary implications within the order Saxifragales. Moreover, our phylogenetic analyses suggested that S. plumbizincicola had a closer relationship with S. sarmentosum than S. oryzifolium, and supported the taxonomic revision of Phedimus. Our findings of the present study will be useful for further investigation of the evolution of plastid rRNA operon and phylogenetic relationships within Saxifragales.
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Affiliation(s)
- Hengwu Ding
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, China.
- The Provincial Key Laboratory of the Conservation and Exploitation Research of Biological Resources in Anhui, Wuhu 241000, Anhui, China.
| | - Ran Zhu
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, China.
| | - Jinxiu Dong
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, China.
| | - De Bi
- National Engineering Laboratory of Soil Pollution Control and Remediation Technologies, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, Jiangsu, China.
| | - Lan Jiang
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, China.
| | - Juhua Zeng
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, China.
| | - Qingyu Huang
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, China.
| | - Huan Liu
- National Engineering Laboratory of Soil Pollution Control and Remediation Technologies, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, Jiangsu, China.
| | - Wenzhong Xu
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
| | - Longhua Wu
- National Engineering Laboratory of Soil Pollution Control and Remediation Technologies, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, Jiangsu, China.
| | - Xianzhao Kan
- The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, Wuhu 241000, Anhui, China.
- The Provincial Key Laboratory of the Conservation and Exploitation Research of Biological Resources in Anhui, Wuhu 241000, Anhui, China.
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