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Martínez-Colón M, Capparelli MV, Kolb D, Moulatlet GM. Trophic transfer mechanisms of potentially toxic elements from sediment and plant leaves (Rhizophora mangle) to fiddler crabs (Minuca rapax) (). Mar Pollut Bull 2023; 197:115786. [PMID: 37988967 DOI: 10.1016/j.marpolbul.2023.115786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/23/2023] [Accepted: 11/11/2023] [Indexed: 11/23/2023]
Abstract
To assess "bottom-up" to "top-down" trophic transfer, we analyze As, Cd, Co, Cr, Cu, Hg, Ni, Se, Zn, Fe, and Mn from two sediment chemical fractions (exchangeable and organic-bound), red mangrove (Rhizophora mangle) leaves, and fiddler crab (M. rapax) soft tissues from Isla del Carmen, Yucatán Peninsula. Both mechanisms were observed indictive that R. mangle and M. rapax indeed bioaccumulated the toxic elements from the different matrices with the latter being a macro-concentrator only for Cu and Zn. Although the modified Geo-accumulation factor (combined exchangeable and organic matter fractions) suggested that the studied sites are practically "uncontaminated", Hg is the only toxic element to be having a "moderately to strongly" impact. Data shows how M. rapax had progressively bioaccumulated Hg, but no biomagnification could be corroborated given that the fiddler crab behaved as a de-concentrator.
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Affiliation(s)
- Michael Martínez-Colón
- School of the Environment, Florida A&M University, 1515 S MLK Boulevard, Tallahassee, FL 32307, United States of America.
| | - Mariana V Capparelli
- Estación el Carmen, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Carretera Carmen-Puerto Real Km. 9.5, C. P 24157 Ciudad del Carmen, Campeche, México.
| | - Daniel Kolb
- School of the Environment, Florida A&M University, 1515 S MLK Boulevard, Tallahassee, FL 32307, United States of America
| | - Gabriel M Moulatlet
- Red de Biología Evolutiva, Instituto de Ecología, A.C., Xalapa, Veracruz, México
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Liang F, Hu J, Liu B, Li L, Yang X, Bai C, Tan X. New Evidence of Semi-Mangrove Plant Barringtonia racemosa in Soil Clean-Up: Tolerance and Absorption of Lead and Cadmium. Int J Environ Res Public Health 2022; 19:12947. [PMID: 36232247 PMCID: PMC9566725 DOI: 10.3390/ijerph191912947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/04/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Mangrove plants play an important role in the remediation of heavy-metal-contaminated estuarine and coastal areas; Barringtonia racemosa is a typical semi-mangrove plant. However, the effect of heavy metal stress on this plant has not been explored. In this study, tolerance characteristics and the accumulation profile of cadmium (Cd) and lead (Pb) in B. racemosa were evaluated. The results indicated that B. racemosa exhibited a high tolerance in single Cd/Pb and Cd + Pb stress, with a significant increase in biomass yield in all treatment groups, a significant increase in plant height, leaf area, chlorophyll and carotenoid content in most treatment groups and without significant reduction of SOD, POD, MDA, proline content, Chl a, Chl b, Chl a + b, Car, ratio of Chl a:b and ratio of Car:Chl (a + b). Cd and Pb mainly accumulated in the root (≥93.43%) and the content of Cd and Pb in B. racemosa was root > stem > leaf. Pb showed antagonistic effects on the Cd accumulation in the roots and Cd showed antagonistic or synergistic effects on the Pb accumulation in the roots, which depended on the concentration of Cd and Pb. There was a significant synergistic effect of Cd and Pb enrichment under a low Cd and Pb concentration treatment. Thus, phytoremediation could potentially use B. racemosa for Cd and Pb.
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Affiliation(s)
- Fang Liang
- College of Biology and Pharmacy, Yulin Normal University, Yulin 537000, China
- Key Laboratory for Conservation and Utilization of Subtropical Bio-Resources, Education Department of Guangxi Zhuang Autonomous Region, Yulin Normal University, Yulin 537000, China
| | - Ju Hu
- College of Biology and Pharmacy, Yulin Normal University, Yulin 537000, China
- Key Laboratory for Conservation and Utilization of Subtropical Bio-Resources, Education Department of Guangxi Zhuang Autonomous Region, Yulin Normal University, Yulin 537000, China
| | - Bing Liu
- Forestry of College, Guangxi University, Nanning 530001, China
| | - Lin Li
- College of Biology and Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Xiuling Yang
- College of Biology and Pharmacy, Yulin Normal University, Yulin 537000, China
| | - Caihong Bai
- College of Biology and Pharmacy, Yulin Normal University, Yulin 537000, China
- Key Laboratory for Conservation and Utilization of Subtropical Bio-Resources, Education Department of Guangxi Zhuang Autonomous Region, Yulin Normal University, Yulin 537000, China
| | - Xiaohui Tan
- Guangxi Subtropical Crops Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530001, China
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Chai M, Li R, Shen X, Yu L, Han J. Multiple heavy metals affect root response, iron plaque formation, and metal bioaccumulation of Kandelia obovata. Sci Rep 2022; 12:14389. [PMID: 35999231 PMCID: PMC9399144 DOI: 10.1038/s41598-022-14867-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 05/05/2022] [Indexed: 11/10/2022] Open
Abstract
Multiple heavy metal pollution in mangrove wetlands is serious. Kandelia obovata seedlings were cultured in pots in which lead (Pb), zinc (Zn) and copper (Cu) were added separately and in combinations. The results showed that heavy metal stress improved the rate of root oxygen leakage, enhanced root activity, and reduced root porosity. The root under single heavy metal stress was impacted by the addition of other heavy metals, demonstrating antagonistic or synergistic effects. Iron plaque (IP) formation was improved under single Zn or Cu stress, and inhibited in binary stress of Pb + Cu. The adsorptions of IP on heavy metals in combined stress (Pb, 62–116 μg g−1; Zn, 194–207 μg g−1; Cu, 35–52 μg g−1) were higher than that in single stress (Pb, 18 μg g−1; Zn, 163 μg g−1; Cu, 22 μg g−1). K. obovata accumulated higher levels of heavy metals in root (Pb, 7–200 μg g−1; Cu, 4–78 μg g−1), compared with IP (Pb, 18–116 μg g−1; Cu, 22–52 μg g−1), stem (Pb, 3–7 μg g−1; Cu, 9–17 μg g−1), and leaf (Pb, 2–4 μg g−1; Cu, 4–7 μg g−1). Correlation analysis showed that single and binary stresses affected K. obovata, with more significant effect of trinary stress. Regression path analysis showed that multiple heavy metal stress firstly affected root, then indirectly contributed to IP formation, as well as heavy metal in IP and root; at last, heavy metal in IP directly contributed to heavy metal bioaccumulations in root.
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Affiliation(s)
- Minwei Chai
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, Guangdong, China
| | - Ruili Li
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, Guangdong, China.
| | - Xiaoxue Shen
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, Guangdong, China
| | - Lingyun Yu
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, 518055, Guangdong, China
| | - Jie Han
- School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong, China
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Ma L, Yang S. Growth and physiological response of Kandelia obovata and Bruguiera sexangula seedlings to aluminum stress. Environ Sci Pollut Res Int 2022; 29:43251-43266. [PMID: 35091926 PMCID: PMC9148292 DOI: 10.1007/s11356-021-17926-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 11/30/2021] [Indexed: 06/14/2023]
Abstract
The role of mangroves as a biogeochemical buffer for heavy metal pollutants in coastal wetlands has been demonstrated, but knowledge gaps still exist on the tolerant capacity of mangroves to aluminum (Al). This study assessed the growth and physiological response of viviparous mangroves Kandelia obovata and Bruguiera sexangula to Al stress. The two mangrove seedlings were treated with AlCl3 at concentrations of 0 (as control) to 100 mmol L-1, and the impact of Al on their growth and antioxidant parameters were determined. Additionally, the accumulation and translocation of metal elements were estimated in B. sexangula seedlings under relative long-term Al stress. K. obovata appeared to survive with a tolerance potential of 10 mmol L-1 AlCl3, whereas B. sexangula had a higher tolerant ability of 50 mmol L-1 AlCl3. Both root elongation and seedling growth were inhibited by Al stress. The exposure to 25-100 mmol L-1 AlCl3 induced increases in membrane lipid peroxidation and osmoprotectant molecule (proline) in mangrove seedlings. Both mangrove seedlings revealed significant changes in antioxidant enzyme activities that were attributed to Al stress-induced oxidative damages. The activities of superoxide dismutase, catalase, peroxidase, and/or ascorbate peroxidase were differently impacted by the treatment time (7 days for short term versus 60 days for long term) and AlCl3 concentrations in K. obovata and B. sexangula seedlings. For B. sexangula seedlings, Al accumulation was in an order root > leaf > stem, whereas the translocation of metal elements in the aboveground tissues (leaf and stem) was differently impacted by Al stress. In conclusion, this study provides insights into different Al-tolerant abilities operated in two mangrove species that are widespread in coastal wetlands of China.
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Affiliation(s)
- Li Ma
- Key Laboratory of the Coastal and Wetland Ecosystem (Ministry of Education), College of the Environment and Ecology, Xiamen University, Xiamen, China
- Department of Chemical Engineering, Chengde Petroleum College, Chengde, China
| | - Shengchang Yang
- Key Laboratory of the Coastal and Wetland Ecosystem (Ministry of Education), College of the Environment and Ecology, Xiamen University, Xiamen, China.
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Ghosh S, Bakshi M, Mahanty S, Chaudhuri P. Assessment of role of rhizosphere process in bioaccumulation of heavy metals in fine nutritive roots of riparian mangrove species in river Hooghly: Implications to global anthropogenic environmental changes. Mar Pollut Bull 2022; 174:113157. [PMID: 34847415 DOI: 10.1016/j.marpolbul.2021.113157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 10/19/2021] [Accepted: 11/12/2021] [Indexed: 06/13/2023]
Abstract
Biota of coastal estuarine habitats of tropics and subtropics are extremely vulnerable. In the study, we have investigated the role of rhizosphere process in bio-accumulation of heavy metals in fine nutritive roots of riparian mangroves at eleven sampling locations of river Hooghly. The rhizospheric sediment of river Hooghly was accumulating HMs due to the presence of organic content and anthropogenic inputs. The mean EF (2.03-8.3), Igeo (-2.27-0.71), and CF (0.62-2.53) values signifies the enrichment of HMs in sediment fine fraction (<62.5 μm) whereas, the mean PLI (0.83 to 1.18) indicates gradual environmental degradation of river Hooghly. Low BCF observed in the river Hooghly might be due to barrier to hypodermal structures and/or any prevailing mechanism of saturation of HMs. However, BCF > 1 for Al, Cu, Cr, Mn, and Zn, signifies the phyto-remediation potential of riparian mangroves to mitigate amplified global anthropogenic environmental changes.
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Affiliation(s)
- Somdeep Ghosh
- Department of Environmental Science, University of Calcutta, West Bengal, India; Department of Environmental Studies, Maharaja Srischandra College, West Bengal, India
| | - Madhurima Bakshi
- Department of Environmental Science, University of Calcutta, West Bengal, India; Department of Environmental Studies, Seth Soorajmull Jalan Girls' College, West Bengal, India
| | - Shouvik Mahanty
- Department of Environmental Science, University of Calcutta, West Bengal, India
| | - Punarbasu Chaudhuri
- Department of Environmental Science, University of Calcutta, West Bengal, India.
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Rahman MS, Saha N, Ahmed ASS, Babu SMOF, Islam ARMT, Begum BA, Jolly YN, Akhter S, Choudhury TR. Depth-related dynamics of physicochemical characteristics and heavy metal accumulation in mangrove sediment and plant: Acanthus ilicifolius as a potential phytoextractor. Mar Pollut Bull 2021; 173:113160. [PMID: 34808545 DOI: 10.1016/j.marpolbul.2021.113160] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 09/17/2021] [Accepted: 11/12/2021] [Indexed: 06/13/2023]
Abstract
The focus of this study was to determine the depth-wise variability of physicochemical properties (i.e., pH, TOC, TN, and EC), and heavy metals (i.e., Pb, Cu, Zn, As, and Cr) concentration, and the associated biological and ecological risks of the mangrove sediment. The accumulation of metal contents and the phytoremediation and phytoextraction were also investigated in a mangrove species, Acanthus ilicifolius. The mangrove sediment consists of a higher proportion of sand fraction (56.6-74.7%) followed by clay (10-28%) and silt (10.1-15. 7%) fractions. The concentrations (mg/kg) of Pb, Cu, Zn, As, and Cr were ranged from 22.05-34.3, 8.58-22.77, 85.07-114, 5.56-12.91, and 0.98-5.12 in all the sediment layers. The hierarchy of the mean metal concentration in sediment was Zn (102 mg/kg) > Pb (25.6 mg/kg) > Cu (14.8 mg/kg) > As (8.79 mg/kg) > Cr (2.74 mg/kg) respectively. The examined metal concentrations were below the respective average shale values (ASVs). The degree of environmental, ecological, and biological risks was minimal according to various pollution indices like geoaccumulation index (Igeo), contamination factor (CF), and pollution load index (PLI). According to sediment quality guidelines (SQGs), the adverse biological risk effect was not likely to occur. The result of the potential ecological risk index (PERI) demonstrated that the study area was in the low-risk condition as the corresponded RI value < 100. A combined influence of geogenic and anthropogenic factors was identified as the metal sources by multivariate analysis. The study found that the accumulation rate of the metal contents was higher in leaves than that of roots. The mean descending metal concentration values were Zn (107) > Pb (28. 7) > Cu (16.9) > As (11.2) > Cr (4.99) in leaves and Zn (104.32) > Pb (27.02) > Cu (15.29) > As (10.39) > Cr (3.80) in roots. The translocation and bioaccumulation factors of heavy metals suggested that the mangrove plant species, A. ilicifolius can be used for phytoremediation and phytoextraction since the bio-concentration factor and translocation factor > 1. The studied species exhibited the metal tolerance associated with two following strategies, metal exclusion, and metal accumulation. However, excess metal tolerance can impact the surrounding marine environment.
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Affiliation(s)
- M Safiur Rahman
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh.
| | - Narottam Saha
- Sustainable Minerals Institute, Center for Mined Land Rehabilitation, The University of Queensland, St Lucia, QLD 4072, Australia.
| | | | | | | | - Bilkis A Begum
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh.
| | - Yeasmin N Jolly
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh
| | - Shrin Akhter
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh
| | - Tasrina R Choudhury
- Chemistry Division, Atomic Energy Center, Bangladesh Atomic Energy Commission, 4-Kazi Nazrul Islam Avenue, Shahbag, Dhaka 1000, Bangladesh
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Souza IDC, Arrivabene HP, Azevedo VC, Duarte ID, Rocha LD, Matsumoto ST, Franco A, Elliott M, Wunderlin DA, Monferrán MV, Fernandes MN. Different trophodynamics between two proximate estuaries with differing degrees of pollution. Sci Total Environ 2021; 770:144651. [PMID: 33736395 DOI: 10.1016/j.scitotenv.2020.144651] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/26/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
Mangroves are complex ecosystems with widely varying abiotic factors such as salinity, pH, redox potential, substratum particle size, dissolved organic matter and xenobiotic concentrations, and a high biodiversity. This paper presents the trophodynamic pathways of accumulation and transfer of metals and metalloids (B, Al, V, Cr, Mn, Fe, Ni, Cu, Zn, Ag, As, Se, Rb, Sr, Pb and Hg), in three trophic chains (plant-crab-fish, plankton-shrimp-fish and plankton-oyster) of similar food webs, corresponding to two mangrove estuaries (Santa Cruz and Vitória Bay, separated by 70 km) in the Espírito Santo State (Brazil). Although the trophic transfer patterns are affected by physical variables, metal and metalloids were found in all trophic levels. We observed similar trophodynamics between both estuaries with some elements, but unequal transfer patterns in other cases, thus questioning the effectiveness of 15N to determine the food chain when the aquatic biota is affected by anthropogenic contaminants. Thus, in the Santa Cruz estuary, most metals were biomagnified through the food web. Conversely, Vitória Bay presented mostly biodilution, suggesting that metal/metalloid transference patterns in mangrove ecosystems may be affected by different anthropogenic contamination inputs. These results indicate the importance of knowing the complete food web when evaluating the trophic transfer of elements, including an evaluation of the differential impact of pollution on diverse components of the food chain.
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Affiliation(s)
- Iara da C Souza
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos, Rodovia Washington Luiz km 235, 13565-905 São Carlos, São Paulo, Brazil.
| | - Hiulana P Arrivabene
- Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo, Ave. Fernando Ferrari, 514, 29075-910 Vitória, Espírito Santo, Brazil.
| | - Vinicius C Azevedo
- Department of Biological Sciences, Simon Fraser University, 8888 University Dr, Burnaby, BC V5A 1S6, Canada.
| | - Ian D Duarte
- Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo, Ave. Fernando Ferrari, 514, 29075-910 Vitória, Espírito Santo, Brazil.
| | - Livia D Rocha
- Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo, Ave. Fernando Ferrari, 514, 29075-910 Vitória, Espírito Santo, Brazil.
| | - Silvia T Matsumoto
- Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo, Ave. Fernando Ferrari, 514, 29075-910 Vitória, Espírito Santo, Brazil.
| | - Anita Franco
- Estuarine and Marine Ecological Consultant, Hull HU5 3SF, UK.
| | - Michael Elliott
- Department of Biological and Marine Sciences, University of Hull, Hull HU6 7RX, UK; International Estuarine & Coastal Specialists Ltd., Leven HU17 5LQ, UK.
| | - Daniel A Wunderlin
- ICYTAC: Institute of Food Science and Technology Córdoba, CONICET and Department of Organic Chemistry, Chemistry Faculty, National University of Cordoba, University Campus, 5000 Córdoba, Argentina.
| | - Magdalena V Monferrán
- ICYTAC: Institute of Food Science and Technology Córdoba, CONICET and Department of Organic Chemistry, Chemistry Faculty, National University of Cordoba, University Campus, 5000 Córdoba, Argentina.
| | - Marisa N Fernandes
- Departamento de Ciências Fisiológicas, Universidade Federal de São Carlos, Rodovia Washington Luiz km 235, 13565-905 São Carlos, São Paulo, Brazil.
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Bourgeois C, Alfaro AC, Bisson E, Alcius S, Marchand C. Trace metal dynamics in soils and plants along intertidal gradients in semi-arid mangroves (New Caledonia). Mar Pollut Bull 2020; 156:111274. [PMID: 32510413 DOI: 10.1016/j.marpolbul.2020.111274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 05/05/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Trace metal dynamics were investigated in mangroves developing in semi-arid New Caledonia, where Avicennia and Rhizophora stands grow in the upper and lower intertidal zone, respectively. We collected soil samples and mangrove tissues in an undisturbed site, a mining-influenced site and in a mining and aquaculture-influenced site. Differences in duration of immersion and organic matter (OM) cycling resulted in a sharp decrease of metal concentrations in soils and plants from landside to seaside. Both species were tolerant to metals mainly via exclusion, (i.e. metal bioaccumulation restricted to roots and leaf litter). Strong correlations (p < 0.05) were found between Na and Fe, Mn, Cu and Zn in green and senesced leaves of Avicennia marina, indicating a possible role of those metals in mechanisms to cope with hypersaline conditions. Increasing metal pollution, aridity and sea-level rise are likely to result in a decrease in mangrove efficiency in filtering trace metals seaward.
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Affiliation(s)
- Carine Bourgeois
- Auckland University of Technology (AUT): Institute for Applied Ecology New Zealand, School of Science, Faculty of Health and Environmental Sciences, Private Bag 92006, Auckland 1142, New Zealand; IMPMC, Institut de Recherche pour le Développement (IRD), UPMC, CNRS, MNHN, Noumea, New Caledonia, France
| | - Andrea C Alfaro
- Auckland University of Technology (AUT): Institute for Applied Ecology New Zealand, School of Science, Faculty of Health and Environmental Sciences, Private Bag 92006, Auckland 1142, New Zealand.
| | - Estelle Bisson
- IMPMC, Institut de Recherche pour le Développement (IRD), UPMC, CNRS, MNHN, Noumea, New Caledonia, France
| | - Steevensen Alcius
- IMPMC, Institut de Recherche pour le Développement (IRD), UPMC, CNRS, MNHN, Noumea, New Caledonia, France
| | - Cyril Marchand
- IMPMC, Institut de Recherche pour le Développement (IRD), UPMC, CNRS, MNHN, Noumea, New Caledonia, France; ISEA, University of New Caledonia BP R4, 98851 Noumea, New Caledonia
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Jia H, Hou D, O'Connor D, Pan S, Zhu J, Bolan NS, Mulder J. Exogenous phosphorus treatment facilitates chelation-mediated cadmium detoxification in perennial ryegrass (Lolium perenne L.). J Hazard Mater 2020; 389:121849. [PMID: 31843404 DOI: 10.1016/j.jhazmat.2019.121849] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/16/2019] [Accepted: 12/07/2019] [Indexed: 06/10/2023]
Abstract
Cadmium (Cd) is an on-going environmental pollutant associated with hindered plant growth. In response, plants possess various strategies to alleviate Cd stress, including reactive oxygen species (ROS) scavenging and chelation-mediated Cd detoxification. The present study examined the Cd defense mechanism of perennial ryegrass (Lolium perenne L.), taking into account the effect of exogenous phosphorus (P) input. It was found that despite triggering antioxidant enzyme activity, Cd stress heightened lipid peroxidation levels. Exogenous P input partially mitigated the lipid peroxidation impact and decreased the levels of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) antioxidant enzymes, revealing reduced ROS-scavenging activity. Importantly, notable relationships were determined between the amount of Cd uptake in the root and the amount of non-protein thiols (R2 = 0.914), glutathione (R2 = 0.805) and phytochelatins (R2 = 0.904) in proportion to the amount of exogenous P applied. The levels of amino acids proline and cysteine were also enhanced by exogenous P input showing their influence in alleviating Cd stress. Overall, it is reported that Cd detoxification in ryegrass plants can be stimulated by exogenous P input, which facilitates chelation-mediated Cd detoxification processes.
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Affiliation(s)
- Hui Jia
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Deyi Hou
- School of Environment, Tsinghua University, Beijing 100084, China.
| | - David O'Connor
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Shizhen Pan
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Jin Zhu
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Nanthi S Bolan
- Global Centre for Environmental Remediation, ATC Building, Faculty of Science and Information Technology, The University of Newcastle, Callaghan, NSW 2308, Australia
| | - Jan Mulder
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, P.O. Box 5003, 1432 Ås, Norway
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Niu A, Ma J, Gao Y, Xu S, Lin C. Mangrove Soil-Borne Trace Elements in Qi’ao Island: Implications for Understanding Terrestrial Input of Trace Elements into Part of the Pearl River Estuary. Applied Sciences 2020; 10:2439. [DOI: 10.3390/app10072439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An investigation was conducted to characterize the trace element status of mangrove soils of Qi’ao Island in the Pearl River estuary. The results show that the spatial variation in the soil-borne trace elements in the investigated area was minor and most of the trace elements were at a level higher than those in other mangrove wetlands around the world, suggesting the mangrove soils of Qi’ao Island were heavily contaminated by trace elements transported from the Pearl River in the past two decades. Zn was closely related to Pb, Cu, Cd, and As, while some trace elements were not closely related to each other, indicating that they were derived from different sources. An integrated Nemerow pollution index of the surface soils at the 17 sampling locations ranged from 7.53 to 48.42, values which all fall within the highest pollution category. Among the 17 sampling locations, six locations had an ecological risk index (ERI) greater than 300, and 12 locations had an Ecological Risk Index (ERI) greater than 600, indicating that most of the investigated locations were at high or very high ecological risk. The findings obtained from this study have implications for understanding the terrestrial inputs of trace elements into part of the Pearl River estuary. This understanding can be used to guide the development of management strategies for controlling the discharges of trace elements from the catchment area and managing the aquatic ecosystems in the Pearl River Estuary.
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Li J, Yu J, Du D, Liu J, Lu H, Yan C. Analysis of anatomical changes and cadmium distribution in Aegiceras corniculatum (L.) Blanco roots under cadmium stress. Mar Pollut Bull 2019; 149:110536. [PMID: 31543481 DOI: 10.1016/j.marpolbul.2019.110536] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 08/20/2019] [Accepted: 08/20/2019] [Indexed: 05/08/2023]
Abstract
Heavy metal stress changes the morphological and anatomical structure of plant organs. In this study, we determined the anatomical changes and Cd distribution in the roots of Aegiceras corniculatum (L.) Blanco (Black mangrove) under Cd stress. The results showed that Cd levels in A. corniculatum root tissues decreased in the following order: endodermis > pith > xylem > epidermis and exodermis > phloem > cortex. The endodermis secondary casparian strip replaces exodermis casparian strip and plays a role in the "retardation mechanism", which sort of compensates for the missing exodermis retardation effect. The xylem and pith both show high affinity for Cd and contain enriched Cd. This creates a low-Cd environment for phloem and protects the nutrient transport function of the vasculature against Cd toxicity. The present study provides new evidences suggesting that Cd regional enrichment and anatomical structure changes are an adaptive strategy of mangrove plants to HM tolerance.
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Affiliation(s)
- Jian Li
- Institute of Environment and Ecology, Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Junyi Yu
- State Key Lab of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Daolin Du
- Institute of Environment and Ecology, Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jingchun Liu
- State Key Lab of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Haoliang Lu
- State Key Lab of Marine Environmental Science, Xiamen University, Xiamen 361102, China
| | - Chongling Yan
- State Key Lab of Marine Environmental Science, Xiamen University, Xiamen 361102, China.
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12
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Jian L, Jingchun L, Chongling Y, Daolin D, Haoliang L. The alleviation effect of iron on cadmium phytotoxicity in mangrove A. marina. Alleviation effect of iron on cadmium phytotoxicity in mangrove Avicennia marina (Forsk.) Vierh. Chemosphere 2019; 226:413-420. [PMID: 30951935 DOI: 10.1016/j.chemosphere.2019.03.172] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 03/08/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
Cd has high activity and bioavailability and is a poisonous element to plants. As a critical ecosysterm, mangroves are subjected to serious Cd pollution. In this research, the hypothesis was presented that improving Fe bioavailability would alleviate Cd phytotoxicity to Avicennia marina (Forsk.) Vierh. To test this, we examined the effect of four exogenous Fe and three Cd concentrations on A. marina. The results showed that a significant positive correlation excited between moderate exogenous Fe concentration and Cd tolerance of A. marina. Moderate exogenous Fe concentration directly or indirectly promoted the formation of Fe plaque, which immobilised more Cd on the root surface and decreased Cd absorption in roots. Furthermore, an exogenous Fe application increased plant biomass and Fe accumulation in A. marina tissues. This improved the competition between Fe and Cd within the plants. Therefore, an Fe application facilitated a decrease in Cd toxicity within A. marina. Simultaneously, a moderate Fe concentration caused an increase in low-molecular-weight organic acid (LMWOA) secretion from the roots. Meanwhile, Cd can be chelated/complexed by LMWOAs. It also played a crucial role in Cd detoxification in A. marina. In conclusion, Fe application accelerated the growth and enhanced Cd tolerance of A. marina. Therefore, improving Fe bioavailability will protect mangroves from Cd contamination.
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Affiliation(s)
- Li Jian
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen, 361102, China; Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Liu Jingchun
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen, 361102, China.
| | - Yan Chongling
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen, 361102, China
| | - Du Daolin
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Lu Haoliang
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen, 361102, China
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13
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Shen X, Li R, Chai M, Cheng S, Niu Z, Qiu GY. Interactive effects of single, binary and trinary trace metals (lead, zinc and copper) on the physiological responses of Kandelia obovata seedlings. Environ Geochem Health 2019; 41:135-148. [PMID: 29987496 DOI: 10.1007/s10653-018-0142-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Accepted: 06/20/2018] [Indexed: 06/08/2023]
Abstract
Heavy metals are considered important environmental contaminants, and their mixture toxicity on plants has complex mutual interactions. The interactive effects of heavy metals on growth, photosynthetic parameters, lipid peroxidation and compatible osmolytes were studied in Kandelia obovata grown for 5 months in sediment treated with combinations of lead (Pb), zinc (Zn) and copper (Cu). The results showed no significant reduction of biomass under heavy metal stresses, except for decreased root biomass under higher Pb + Cu treatment, indicating high tolerance of K. obovata to heavy metal stress. Only the photosynthetic parameters, including net photosynthetic rate (Pn), stomatal conductance (Gs) and transpiration rate (Tr), decreased with increasing concentration of treatments (except for Pb + Cu and Pb + Zn + Cu). Trinary treatment (Pb + Zn + Cu) increased biomass and the photosynthetic parameters when compared to the external addition of binary metals. In the roots, biomass and soluble sugar content were lower under binary than trinary treatments, indicating that the combination of Zn and Cu exhibited improved effects of alleviating toxicity than each of them alone in Pb-containing combined treatments. In the leaves, Zn-containing combined treatments significantly decreased malondialdehyde (MDA), soluble sugar and proline content in low concentration, while Pb + Cu treatments significantly increased these parameters (P < 0.05). The correlation analysis showed that leaf MDA and proline content were negatively correlated with Zn concentration (P < 0.05). Zn could alleviate the effects of combined heavy metal stress, and Pb + Cu treatment showed synergistic effects in leaves. The positive correlations between MDA content and the osmotic parameters showed that osmotic stress and lipid membranes oxidation exist simultaneously under multiple heavy metal stresses. Therefore, biomass, Tr, leaf MDA, leaf proline content and soluble sugar content could indicate metal mixture toxicity to mangrove seedlings.
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Affiliation(s)
- Xiaoxue Shen
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
| | - Ruili Li
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China.
| | - Minwei Chai
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
| | - Shanshan Cheng
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
| | - Zhiyuan Niu
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
| | - Guo Yu Qiu
- School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen, 518055, Guangdong, China
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14
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Shen X, Li R, Chai M, Yu K, Zan Q, Qiu GY. Assessing the effect of extra nitrogen on Kandelia obovata growth under cadmium stress using high-resolution thermal infrared remote sensing and the three-temperature model. Funct Plant Biol 2018; 45:1162-1171. [PMID: 32290977 DOI: 10.1071/fp17295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 06/12/2018] [Indexed: 06/11/2023]
Abstract
Mangrove forests provide many ecological services and are among the most productive intertidal ecosystems on earth. Currently, these forests frequently face significant heavy metal pollution as well as eutrophication. The present study assessed the response of Kandelia obovata Sheue, H.Y. Liu & J. Yong to combined NH4+-N addition and Cd stress based on a three-temperature (3T) model using high-resolution thermal infrared remote sensing. The results show that leaf surface temperature (Tc) and the plant transpiration transfer coefficient (hat) became larger with increasing NH4+-N concentrations in the same Cd treatment, especially under high NH4+-N (50 and 100 mg·L-1) and Cd stress. The thermal bioindicators, growth responses and photosynthetic parameters changed in a consistent fashion, indicating that combined high NH4+-N addition and Cd stress led to stomatal closure, reduced the cooling effect of transpiration, and increased Tc and hat values. Furthermore, appropriate NH4+-N supply reduced stomatal conductance (gs) and the transpiration rate (Tr), which were increased by Cd stress, and then maintained Tc and hat at normal levels. The normalised hat helped to reduce the influence of environmental variation during the diagnosis of mangrove plant health. This indicated that the 3T model with high-resolution thermal infrared remote sensing provides an effective technique for determining the health status of mangrove plants under stress.
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Affiliation(s)
- Xiaoxue Shen
- School of Environment and Energy, Peking University, Shenzhen, Guangdong, 518055, China
| | - Ruili Li
- School of Environment and Energy, Peking University, Shenzhen, Guangdong, 518055, China
| | - Minwei Chai
- School of Environment and Energy, Peking University, Shenzhen, Guangdong, 518055, China
| | - Ke Yu
- School of Environment and Energy, Peking University, Shenzhen, Guangdong, 518055, China
| | - Qijie Zan
- Guangdong Neilingding Futian National Nature Reserve, Shenzhen 518000, China
| | - Guo Yu Qiu
- School of Environment and Energy, Peking University, Shenzhen, Guangdong, 518055, China
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15
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Xu Y, Sun X, Zhang Q, Li X, Yan Z. Iron plaque formation and heavy metal uptake in Spartina alterniflora at different tidal levels and waterlogging conditions. Ecotoxicol Environ Saf 2018; 153:91-100. [PMID: 29407744 DOI: 10.1016/j.ecoenv.2018.02.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 01/30/2018] [Accepted: 02/02/2018] [Indexed: 06/07/2023]
Abstract
Tidal flat elevation in the estuarine wetland determines the tidal flooding time and flooding frequency, which will inevitably affect the formation of iron plaque and accumulations of heavy metals (HMs) in wetland plants. The present study investigated the formation of iron plaque and HM's (copper, zinc, lead, and chromium) accumulation in S. alterniflora, a typical estuarine wetland species, at different tidal flat elevations (low, middle and high) in filed and at different time (3, 6, 9, 12 h per day) of waterlogging treatment in greenhouse conditions. Results showed that the accumulation of copper, zinc, lead, and chromium in S. alterniflora was proportional to the exchangeable fraction of these metals in the sediments, which generally increased with the increase of waterlogging time, whereas the formations of iron plaque in roots decreased with the increase of waterlogging time. Under field conditions, the uptake of copper and zinc in the different parts of the plants generally increased with the tidal levels despite the decrease in the metals' exchangeable fraction with increasing tidal levels. The formation of iron plaque was found to be highest in the middle tidal positions and significantly lower in low and high tidal positions. Longer waterlogging time increased the metals' accumulation but decreased the formation of iron plaque in S. alterniflora. The binding of metal ions on iron plaque helped impede the uptake and accumulation of copper and chromium in S. alterniflora.
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Affiliation(s)
- Yan Xu
- State Key Laboratory of Estuarine and Coastal Researches, East China Normal University, Shanghai, China
| | - Xiangli Sun
- State Key Laboratory of Estuarine and Coastal Researches, East China Normal University, Shanghai, China
| | - Qiqiong Zhang
- State Key Laboratory of Estuarine and Coastal Researches, East China Normal University, Shanghai, China
| | - Xiuzhen Li
- State Key Laboratory of Estuarine and Coastal Researches, East China Normal University, Shanghai, China
| | - Zhongzheng Yan
- State Key Laboratory of Estuarine and Coastal Researches, East China Normal University, Shanghai, China.
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16
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Yang W, Zhao F, Ding Z, Shohag MJI, Wang Y, Zhang X, Zhu Z, Yang X. Screening of 19 Salix clones in effective phytofiltration potentials of manganese, zinc and copper in pilot-scale wetlands. Int J Phytoremediation 2018; 20:1275-1283. [PMID: 30666899 DOI: 10.1080/15226514.2014.898020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Willows (Salix spp.) have been regarded as one of interesting plants for phytofiltration of water contaminated with trace metals. In this paper, the clonal differences in tolerance and phytofiltration capacity of mixed metals (Mn, Zn, and Cu) were evaluated in greenhouse pilot-scale wetlands with a floating-support culture system. The results showed that broad clonal variations of biomass accumulation in response to mixed metals ranging from growth inhibition to stimulation. Clones differed in tolerance to multi-metals by tolerance index (TI) based on shoot and root biomass. We also found that wide variations in uptake and accumulation of three metals, which was related to species/clones and metal species. The willows showed high Mn and Zn translocation capacity from roots to leaves suitable for phytoextraction. In contrast, all clones had poor Cu translocation capacity, and Cu mainly retained in roots suitable for rhizofiltration. Among all Salix clones, clones SM30 and J903 had large phytofiltration potential for three metals with their high tolerance.
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Affiliation(s)
- Weidong Yang
- a Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou , China
| | - Fengliang Zhao
- a Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou , China
- b Ministry of Agriculture Danzhou Scientific Observing and Experimental Station of Agro-Environment, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences (CATAS) , Danzhou , China
| | - Zheli Ding
- a Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou , China
- c Haikou Experimental Station, Chinese Academy of Tropical Agricultural Sciences (CATAS) , Haikou , China
| | - Md Jahidul Isalm Shohag
- a Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou , China
| | - Yuyan Wang
- a Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou , China
- d College of Agricultural Economy and Technology, Jiujiang Vocational University , Jiujiang , China
| | - Xincheng Zhang
- a Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou , China
| | - Zhiqiang Zhu
- a Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou , China
- e College of Agriculture, Hainan University , Haikou , China
| | - Xiaoe Yang
- a Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health, College of Environmental and Resource Sciences, Zhejiang University , Hangzhou , China
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17
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Li J, Yu J, Yan C, Du D, Liu J, Lu H. Distribution correlations of cadmium to calcium, phosphorus, sodium and chloridion in mangrove Aegiceras corniculatum root tissues. Mar Pollut Bull 2018; 126:179-183. [PMID: 29421085 DOI: 10.1016/j.marpolbul.2017.10.074] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/21/2017] [Accepted: 10/24/2017] [Indexed: 06/08/2023]
Abstract
Nutriment distributions might influence Cd distribution and Cd tolerance in mangrove plant roots. To demonstrate this, Aegiceras corniculatum was stressed by Cd, and the distributions of Cd, Ca, P, Na and Cl in plant roots were detected with the aid of SEM-EDX. It was found that endodermis, pith and xylem were the predominant tissues for retardation and regional enrichment of Cd. Na and Cl distributions suggest a critical role of salt resistance tissues on Cd tolerance in roots. P participated in Cd retardation and regional enrichment of endodermis and xylem. P, Na, Cl and Ca distribution had a high correlation to that of Cd in roots. The synergetic accumulation between Ca and Cd could be a crucial mechanism for Cd tolerance in A. corniculatum roots. In conclusion, the research of Cd and nutriment distributions in A. corniculatum roots deepens the understanding on Cd tolerance in mangrove plants.
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Affiliation(s)
- Jian Li
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China; Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Junyi Yu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Chongling Yan
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China.
| | - Daolin Du
- Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Jingchun Liu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Haoliang Lu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
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18
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Cheng S, Tam NFY, Li R, Shen X, Niu Z, Chai M, Qiu GY. Temporal variations in physiological responses of Kandelia obovata seedlings exposed to multiple heavy metals. Mar Pollut Bull 2017; 124:1089-1095. [PMID: 28442201 DOI: 10.1016/j.marpolbul.2017.03.060] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 03/21/2017] [Accepted: 03/29/2017] [Indexed: 06/07/2023]
Abstract
A study was conducted to quantify temporal variations in physiological responses of Kandelia obovata under multiple heavy metal stress. The results showed that plant growth was not significantly affected by multiple heavy metal stress during the 120-days experiment. At the start, levels of net photosynthetic rate (Pn), stomatal conductance (Gs) and transpiration rate (Tr) showed effects of "low-promotion, high-inhibition", but Pn and Gs reduced with increasing heavy metal stress at the end. Temporary lipid oxidation was shown by high levels of malondialdehyde (MDA) under high heavy metal stress at the start but was unaffected at the end of the experiment. MDA negatively correlated with biomass and photosynthetic parameters and acted as a sensitive indicator. Proline also shared similar trend and indicated its temporary role in osmotic adjustment. Negative correlations between osmotic adjustment matter and photosynthetic parameters further confirmed the significant role of osmotic adjustment under heavy metal stress.
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Affiliation(s)
- Shanshan Cheng
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen 518055, Guangdong, China
| | - Nora Fung Yee Tam
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon Tong, Hong Kong, China
| | - Ruili Li
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen 518055, Guangdong, China.
| | - Xiaoxue Shen
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen 518055, Guangdong, China
| | - Zhiyuan Niu
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen 518055, Guangdong, China
| | - Minwei Chai
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen 518055, Guangdong, China
| | - Guo Yu Qiu
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen 518055, Guangdong, China.
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Abstract
Avicennia marina is a high-Cd-tolerant species in the mangrove wetlands. A hydroponic experiment was carried out to research the accumulation and chemical form distribution of Cd in the tissues of A. marina under different concentrations and durations of Cd stress. It was found that the concentrations of Cd in plant tissues followed the order of root > stem > leaf. The data suggested that root activity decreased, Cd accumulation ability weakened in roots, and the translocation factor increased in stems and leaves with the increase of stress duration. With a proactive defense mechanism, most Cd was bound to pectates, organic acids, and protein, especially in roots and stems with the most proportion of 88.51 and 78.91%, respectively, having lower biological activities. The Cd bounded to water-soluble organic acid and free inorganic aminophenol-Cd showed the lowest concentration. The pectates, organic acids, and protein-integrated Cd seem the most important in affecting Cd detoxification for A. marina; this mechanism of change in Cd biological activities decreases the toxicity of this aggressive pollutant and presents new knowledge about the tolerance of mangrove plants.
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Affiliation(s)
- Li Jian
- a School of the Environment and Safety Engineering, Institute of Environment and Ecology , Jiangsu University , Zhenjiang , China
- b Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems , Xiamen University , Xiamen , China
| | - Yan Chongling
- b Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems , Xiamen University , Xiamen , China
| | - Du Daolin
- a School of the Environment and Safety Engineering, Institute of Environment and Ecology , Jiangsu University , Zhenjiang , China
| | - Lu Haoliang
- b Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems , Xiamen University , Xiamen , China
| | - Liu Jingchun
- b Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems , Xiamen University , Xiamen , China
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20
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Pittarello M, Busato JG, Carletti P, Dobbss LB. Possible developments for ex situ phytoremediation of contaminated sediments, in tropical and subtropical regions - Review. Chemosphere 2017; 182:707-719. [PMID: 28531837 DOI: 10.1016/j.chemosphere.2017.04.093] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 03/23/2017] [Accepted: 04/20/2017] [Indexed: 06/07/2023]
Abstract
The growing problem of remediation of contaminated sediments dredged from harbor channels needs to be resolved by a cost effective and sustainable technology. Phytoremediation, by ex situ remediation plants, seems to have the potential to replace traditional methods in case of moderately contaminated sediments. On the other side, the need to mix sediments with soil and/or sand to allow an easier establishment of most employed species causes an increase of the volume of the processed substrate up to 30%. Moreover the majority of phytoremediating species are natives of temperate climate belt. Mangroves, with a special focus on the genus Avicennia - a salt secreting species - should represent an effective alternative in terms of adaptation to salty, anoxic sediments and an opportunity to develop ex situ phytoremediation plants in tropical and subtropical regions. The use of humic acid to increase root development, cell antioxidant activity and the potential attenuation of the "heavy metals exclusion strategy" to increase phytoextraction potentials of mangroves will be reviewed.
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Affiliation(s)
- Marco Pittarello
- University of Vila Velha, Ecology of Organic Matter Laboratory, Biopraticas Compound, Vila Velha, ES, Brazil.
| | - Jader Galba Busato
- University of Brasilia, Faculty of Agronomy and Veterinary Medicine, University Campus Darcy Ribeiro, Sciences Central Institute, Federal District, Brazil
| | - Paolo Carletti
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Padova, Italy
| | - Leonardo Barros Dobbss
- Federal University of Vales do Jequitinhonha e Mucuri, Institute of Agricultural Sciences, Unaí, MG, Brazil
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Dai M, Liu J, Liu W, Lu H, Jia H, Hong H, Yan C. Phosphorus effects on radial oxygen loss, root porosity and iron plaque in two mangrove seedlings under cadmium stress. Mar Pollut Bull 2017; 119:262-269. [PMID: 28427774 DOI: 10.1016/j.marpolbul.2017.04.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/08/2017] [Accepted: 04/08/2017] [Indexed: 06/07/2023]
Abstract
Phosphorus is an indispensable element for plants, but its role in alleviating the cadmium toxicity of mangrove seedlings is poorly documented. In this study, mangrove seedlings were grown in hydroponics and exposed to various Cd and P treatments. Data suggested that the inhibitory effect of Cd on the rate of radial oxygen loss and root porosity was alleviated by P. A. marina had a higher rate of ROL and POR, indicating that it had a stronger adaptability to anaerobic environment. K. obovata induced a higher Fe concentration in iron plaque under co-application of Cd and P, which may relate to higher biomass. Furthermore, P increased Cd concentration in iron plaque, implying that iron plaque can be an obstacle to prevent Cd entering into the plant, but most Cd was still distributed in its roots. These findings highlight a novel mechanism of Cd detoxification with P addition in mangrove seedlings.
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Affiliation(s)
- Minyue Dai
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Jingchun Liu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Wenwen Liu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Haoliang Lu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Hui Jia
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Hualong Hong
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Chongling Yan
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China.
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Shackira AM, Puthur JT, Nabeesa Salim E. Acanthus ilicifolius L. a promising candidate for phytostabilization of zinc. Environ Monit Assess 2017; 189:282. [PMID: 28534307 DOI: 10.1007/s10661-017-6001-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 05/09/2017] [Indexed: 06/07/2023]
Abstract
The potential of a halophyte species-Acanthus ilicifolius L.-to phytostabilize zinc (Zn) grown under hydroponics culture conditions was critically evaluated in this study. The propagules after treating with ZnSO4 (4 mM) were analysed for the bioaccumulation pattern, translocation rate of Zn to the shoot, effects of Zn accumulation on organic solutes and the antioxidant defence system. It was found that most of the Zn absorbed by the plant was retained in the root (47%) and only a small portion was transported to stem (12%) and leaves (11%). This is further confirmed by the high BCFroot (bioconcentration factor) value (1.99) and low TFshoot/root (translocation factor) value (0.5), which indicates the increased retention of Zn in the root itself. Moreover, treatment with Zn resulted in an increased accumulation of organic solutes (proline, free amino acids and soluble sugars) and non-enzymatic antioxidants (ascorbate, glutathione and phenol) in the leaf and root tissue. Likewise, the activity of antioxidant enzymes namely superoxide dismutase (SOD), catalase (CAT), guaiacol peroxidase (GPX) and ascorbate peroxidase (APX) recorded an enhanced activity upon exposure to Zn as compared to the control plants. Thus, the increased tolerance for Zn in A. ilicifolius may be attributed to the efficient free radical scavenging mechanisms operating under excess Zn. In addition, being a high accumulator (53.7 mg of Zn) and at the same time a poor translocator of Zn to the aerial parts of the plant, A. ilicifolius can be recommended as a potential candidate for the phytostabilization of Zn in the contaminated wetlands.
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Affiliation(s)
- A M Shackira
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, C.U. Campus P.O, Kerala, 673635, India
| | - Jos T Puthur
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, C.U. Campus P.O, Kerala, 673635, India.
| | - E Nabeesa Salim
- Plant Physiology and Biochemistry Division, Department of Botany, University of Calicut, C.U. Campus P.O, Kerala, 673635, India
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Bakshi M, Ram SS, Ghosh S, Chakraborty A, Sudarshan M, Chaudhuri P. Micro-spatial variation of elemental distribution in estuarine sediment and their accumulation in mangroves of Indian Sundarban. Environ Monit Assess 2017; 189:221. [PMID: 28425071 DOI: 10.1007/s10661-017-5891-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 03/10/2017] [Indexed: 06/07/2023]
Abstract
This work describes the micro-spatial variation of elemental distribution in estuarine sediment and bioaccumulation of those elements in different mangrove species of the Indian Sundarbans. The potential ecological risk due to such elemental load on this mangrove-dominated habitat is also discussed. The concentrations of elements in mangrove leaves and sediments were determined using energy-dispersive X-ray fluorescence spectroscopy. Sediment quality and potential ecological risks were assessed from the calculated indices. Our data reflects higher concentration of elements, e.g., Al, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, and Pb, in the sediment, as compared to that reported by earlier workers. Biological concentration factors for K, Ca, Mn, Fe, Cu, and Zn in different mangroves indicated gradual elemental bioaccumulation in leaf tissues (0.002-1.442). Significant variation was observed for elements, e.g., Ni, Mn, and Ca, in the sediments of all the sites, whereas in the plants, significant variation was found for P, S, Cl, K, Ca, Mn, Fe, Cu, and Zn. This was mostly due to the differences in uptake and accumulation potential of the plants. Various sediment quality indices suggested the surface sediments to be moderately contaminated and suffering from progressive deterioration. Cu, Cr, Zn, Mn, and Ni showed higher enrichment factors (0.658-1.469), contamination factors (1.02-2.7), and geo-accumulation index (0.043-0.846) values. The potential ecological risk index values considering Cu, Cr, Pb, and Zn were found to be within "low ecological risk" category (20.04-24.01). However, Cr and Ni in the Sundarban mangroves exceeded the effect range low and probable effect level limits. Strong correlation of Zn with Fe and K was observed, reflecting their similar transportation and accumulation process in both sediment and plant systems. The plant-sediment elemental correlation was found to be highly non-linear, suggesting role of some physiological and edaphic factors in the accumulation process. Overall, the study of micro-spatial distribution of elements can act as a useful tool for determining health of estuarine ecosystem.
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Affiliation(s)
- Madhurima Bakshi
- Department of Environmental Science, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, West Bengal, 700019, India
| | - S S Ram
- Department of Environmental Science, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, West Bengal, 700019, India
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata, India
- Ion Beam Laboratory, Institute of Physics, Bhubaneswar, India
| | - Somdeep Ghosh
- Department of Environmental Science, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, West Bengal, 700019, India
| | | | - M Sudarshan
- UGC-DAE Consortium for Scientific Research, Kolkata Centre, Kolkata, India
| | - Punarbasu Chaudhuri
- Department of Environmental Science, University of Calcutta, 35, Ballygunge Circular Road, Kolkata, West Bengal, 700019, India.
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Ghosh S, Ram SS, Bakshi M, Chakraborty A, Sudarshan M, Chaudhuri P. Vertical and horizontal variation of elemental contamination in sediments of Hooghly Estuary, India. Mar Pollut Bull 2016; 109:539-549. [PMID: 27312987 DOI: 10.1016/j.marpolbul.2016.04.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 04/13/2016] [Accepted: 04/14/2016] [Indexed: 06/06/2023]
Abstract
Hooghly Estuary along with the Sunderban mangroves forms one of the most diverse ecosystems in the world. We investigated the vertical and horizontal distribution of elements at nine sampling locations in this estuary for assessing the degree of elemental contamination. The elemental concentrations were analyzed by an Energy Dispersive X-ray Flurosence spectrometer (EDXRF). A higher enrichment factor (EF) value of trace elements (V, Cr, Mn, Fe, Ni, Cu and Zn) is evident considering all the sampling locations. Geo-accumulation index (Igeo) values of all the sampling locations and core depth reveals Cr and Cu are under Igeo Class I level of contamination. The value of the pollution load index (PLI) varies between 0.94-1.65 with maximum at Chemaguri and minimum at Haldi Estuary and Petuaghat. The overall variation in elemental concentration may be due to differential discharge pattern of storm water and agricultural run-off, industrial effluent and domestic sewage.
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Affiliation(s)
- Somdeep Ghosh
- Department of Environmental Science, University of Calcutta, West Bengal, India
| | - Shidharth Sankar Ram
- Department of Environmental Science, University of Calcutta, West Bengal, India; UGC-DAE Consortium for Scientific Research, WB, India; Ion Beam Laboratory, Institute of Physics, Bhubaneswar-751005, India
| | - Madhurima Bakshi
- Department of Environmental Science, University of Calcutta, West Bengal, India
| | | | | | - Punarbasu Chaudhuri
- Department of Environmental Science, University of Calcutta, West Bengal, India.
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Li J, Lu H, Liu J, Hong H, Yan C. The influence of flavonoid amendment on the absorption of cadmium in Avicennia marina roots. Ecotoxicol Environ Saf 2015; 120:1-6. [PMID: 26004538 DOI: 10.1016/j.ecoenv.2015.05.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/23/2015] [Accepted: 05/05/2015] [Indexed: 05/20/2023]
Abstract
Flavonoid is a key factor for the tolerance to cadmium in plants. Concentration-dependent kinetics experiment was conducted to investigate the influence of flavonoid amendment on the Cd(2+) uptake in Avicennia marina (Forsk) Vierh. roots. We found that compared with the control, saturation concentration and maximal absorption rate of Cd was higher under flavonoid amendment (p<0.05). When roots were exposed to ion transport inhibitor (LaCl3), flavonoid amendment also facilitated Cd transport in roots. Flavonoids had no influence on Cd(2+) uptake in root cell walls. In conclusion, flavonoids enhance the tolerance to Cd and have a significant stimulative effect on symplasm transport of Cd in A. marina roots. Ca(2+)-channel was not the unique means of symplasm transport for Cd(2+) absorption.
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Affiliation(s)
- Jian Li
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Haoliang Lu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Jingchun Liu
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Hualong Hong
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China
| | - Chongling Yan
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361102, China.
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Arrivabene HP, Souza IDC, Có WLO, Conti MM, Wunderlin DA, Milanez CRD. Effect of pollution by particulate iron on the morphoanatomy, histochemistry, and bioaccumulation of three mangrove plant species in Brazil. Chemosphere 2015; 127:27-34. [PMID: 25655694 DOI: 10.1016/j.chemosphere.2015.01.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 12/30/2014] [Accepted: 01/08/2015] [Indexed: 05/23/2023]
Abstract
In Brazil, some mangrove areas are subjected to air pollution by particulate iron from mining activities. However, the effect of this pollutant on mangrove plants is not well known. This study aimed to comparatively analyze the morphoanatomy, histochemistry, and iron accumulation in leaves of Avicennia schaueriana, Laguncularia racemosa, and Rhizophora mangle. Samples were collected from five mangrove sites of Espírito Santo state, each of which is exposed to different levels of particulate iron pollution. The amount of particulate material settled on the leaf surface was greater in A. schaueriana and L. racemosa, which contain salt glands. High iron concentrations were found in leaves of this species, collected from mangrove areas with high particulate iron pollution, which suggests the foliar absorption of this element. None of the samples from any of the sites showed morphological or structural damage on the leaves. Scanning electron microscopy (SEM) coupled to X-ray diffraction rendered a good method for evaluating iron on leaves surfaces. A histochemical test using Prussian blue showed to be an appropriate method to detect iron in plant tissue, however, proved to be an unsuitable method for the assessment of the iron bioaccumulation in leaves of A. schaueriana and R. mangle. So far, this study demonstrates the need of evaluating the pathway used by plants exposed to contaminated particulate matter to uptake atmospheric pollutants.
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Affiliation(s)
- Hiulana Pereira Arrivabene
- Universidade Federal do Espírito Santo, Centro de Ciências Humanas e Naturais, Departamento de Ciências Biológicas, 29075-910 Vitória, Espírito Santo, Brazil
| | - Iara da Costa Souza
- Universidade Federal de São Carlos, Centro de Ciências Biológicas e da Saúde, Departamento de Ciências Fisiológicas, 13565-905 São Carlos, São Paulo, Brazil
| | - Walter Luiz Oliveira Có
- Associação Educacional de Vitória, Departamento de Biologia, 29053-360 Vitória, Espírito Santo, Brazil
| | - Melina Moreira Conti
- Universidade Federal do Espírito Santo, Centro Tecnológico, Departamento de Engenharia Ambiental, 29075-910 Vitória, Espírito Santo, Brazil
| | - Daniel Alberto Wunderlin
- Instituto de Ciencia y Tecnología de Alimentos Córdoba (ICYTAC), CONICET, Dpto. Qca. Orgánica, Fac. Cs Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina.
| | - Camilla Rozindo Dias Milanez
- Universidade Federal do Espírito Santo, Centro de Ciências Humanas e Naturais, Departamento de Ciências Biológicas, 29075-910 Vitória, Espírito Santo, Brazil.
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Souza IDC, Morozesk M, Duarte ID, Bonomo MM, Rocha LD, Furlan LM, Arrivabene HP, Monferrán MV, Matsumoto ST, Milanez CRD, Wunderlin DA, Fernandes MN. Matching pollution with adaptive changes in mangrove plants by multivariate statistics. A case study, Rhizophora mangle from four neotropical mangroves in Brazil. Chemosphere 2014; 108:115-124. [PMID: 24875920 DOI: 10.1016/j.chemosphere.2014.02.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 02/24/2014] [Accepted: 02/25/2014] [Indexed: 06/03/2023]
Abstract
Roots of mangrove trees have an important role in depurating water and sediments by retaining metals that may accumulate in different plant tissues, affecting physiological processes and anatomy. The present study aimed to evaluate adaptive changes in root of Rhizophora mangle in response to different levels of chemical elements (metals/metalloids) in interstitial water and sediments from four neotropical mangroves in Brazil. What sets this study apart from other studies is that we not only investigate adaptive modifications in R. mangle but also changes in environments where this plant grows, evaluating correspondence between physical, chemical and biological issues by a combined set of multivariate statistical methods (pattern recognition). Thus, we looked to match changes in the environment with adaptations in plants. Multivariate statistics highlighted that the lignified periderm and the air gaps are directly related to the environmental contamination. Current results provide new evidences of root anatomical strategies to deal with contaminated environments. Multivariate statistics greatly contributes to extrapolate results from complex data matrixes obtained when analyzing environmental issues, pointing out parameters involved in environmental changes and also evidencing the adaptive response of the exposed biota.
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Affiliation(s)
- Iara da Costa Souza
- Universidade Federal de São Carlos, Dep. Ciências Fisiológicas, Av. Washington Luiz, Km 235, 13565-905 São Carlos, São Paulo, Brazil
| | - Mariana Morozesk
- Universidade Federal do Espírito Santo, Dep. Ciências Biológicas, Av. Fernando Ferrari, 514, 29075-910 Vitória, Brazil
| | - Ian Drumond Duarte
- Universidade Federal do Espírito Santo, Dep. Ciências Biológicas, Av. Fernando Ferrari, 514, 29075-910 Vitória, Brazil
| | - Marina Marques Bonomo
- Universidade Federal do Espírito Santo, Dep. Ciências Biológicas, Av. Fernando Ferrari, 514, 29075-910 Vitória, Brazil
| | - Lívia Dorsch Rocha
- Universidade Federal do Espírito Santo, Dep. Ciências Biológicas, Av. Fernando Ferrari, 514, 29075-910 Vitória, Brazil
| | - Larissa Maria Furlan
- Universidade Federal do Espírito Santo, Dep. Ciências Biológicas, Av. Fernando Ferrari, 514, 29075-910 Vitória, Brazil
| | - Hiulana Pereira Arrivabene
- Universidade Federal do Espírito Santo, Dep. Ciências Biológicas, Av. Fernando Ferrari, 514, 29075-910 Vitória, Brazil
| | - Magdalena Victoria Monferrán
- ICYTAC - Instituto de Ciencia y Tecnología de Alimentos Córdoba, CONICET and Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Bv. Dr. Juan Filloy s/n, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Silvia Tamie Matsumoto
- Universidade Federal do Espírito Santo, Dep. Ciências Biológicas, Av. Fernando Ferrari, 514, 29075-910 Vitória, Brazil
| | - Camilla Rozindo Dias Milanez
- Universidade Federal do Espírito Santo, Dep. Ciências Biológicas, Av. Fernando Ferrari, 514, 29075-910 Vitória, Brazil
| | - Daniel Alberto Wunderlin
- ICYTAC - Instituto de Ciencia y Tecnología de Alimentos Córdoba, CONICET and Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Bv. Dr. Juan Filloy s/n, Ciudad Universitaria, 5000 Córdoba, Argentina.
| | - Marisa Narciso Fernandes
- Universidade Federal de São Carlos, Dep. Ciências Fisiológicas, Av. Washington Luiz, Km 235, 13565-905 São Carlos, São Paulo, Brazil.
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Cheng H, Jiang ZY, Liu Y, Ye ZH, Wu ML, Sun CC, Sun FL, Fei J, Wang YS. Metal (Pb, Zn and Cu) uptake and tolerance by mangroves in relation to root anatomy and lignification/suberization. Tree Physiol 2014; 34:646-656. [PMID: 24965807 DOI: 10.1093/treephys/tpu042] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Metal pollution has been widely reported in mangrove wetlands; however, the mechanisms involved in metal detoxification by mangroves are still poorly understood. This study aimed to investigate the possible function of root anatomy and lignification/suberization on metal uptake and tolerance in seedlings of six species of mangroves. The results revealed that the three rhizophoraceous species (Bruguiera gymnorrhiza (L.) Poir, Kandelia obovata Sheue, Liu & Yong and Rhizophora stylosa Griff) consistently exhibited higher metal tolerances than the three pioneer species (Aegiceras corniculatum (Linn.) Blanco, Acanthus ilicifolius L. and Avicennia marina (Forsk.) Viern.). Moreover, metal-tolerant species often exhibited a thick exodermis with high lignification and suberization. The tolerance indices of the mangroves were found to be positively correlated with the amounts of lignin and suberin deposition within the exodermal cell walls. The observed metal uptake by the excised roots further illustrated that a lignified/suberized exodermis directly delayed the entry of metals into the roots, and thereby contributed to a higher tolerance to heavy metals. In summary, the present study proposes a barrier property of the lignified/suberized exodermis in dealing with the stresses of heavy metals, such that the mangroves which possessed more extensive lignification/suberization within the exodermis appeared to exhibit higher metal tolerance.
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Affiliation(s)
- Hao Cheng
- State Key Laboratory of Tropical Oceanography and Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Zhao-Yu Jiang
- State Key Laboratory of Tropical Oceanography and Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Yong Liu
- Key Laboratory for Exploitation & Utilization of Marine Fisheries Resource in South China Sea, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China
| | - Zhi-Hong Ye
- State Key Laboratory for Bio-control, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Mei-Lin Wu
- State Key Laboratory of Tropical Oceanography and Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Cui-Ci Sun
- State Key Laboratory of Tropical Oceanography and Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Fu-Lin Sun
- State Key Laboratory of Tropical Oceanography and Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Jiao Fei
- State Key Laboratory of Tropical Oceanography and Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - You-Shao Wang
- State Key Laboratory of Tropical Oceanography and Daya Bay Marine Biology Research Station, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
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da Souza I, Bonomo MM, Morozesk M, Rocha LD, Duarte ID, Furlan LM, Arrivabene HP, Monferrán MV, Matsumoto ST, Milanez CRD, Wunderlin DA, Fernandes MN. Adaptive plasticity of Laguncularia racemosa in response to different environmental conditions: integrating chemical and biological data by chemometrics. Ecotoxicology 2014; 23:335-348. [PMID: 24445776 DOI: 10.1007/s10646-014-1191-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/07/2014] [Indexed: 06/03/2023]
Abstract
Mangroves are dynamic environments under constant influence of anthropic contaminants. The correlation between environmental contamination levels and possible changes in the morphology of plants, evaluated by multivariate statistics helps to highlight matching between these variables. This study aimed to evaluate the uptake and translocation of metals and metalloids in roots and leaves as well as the changes induced in both anatomy and histochemistry of roots of Laguncularia racemosa inhabiting two estuaries of Espírito Santo (Brazil) with different pollution degrees. The analysis of 14 elements in interstitial water, sediments and plants followed by multivariate statistics, allowed the differentiation of studied sites, showing good match between levels of elements in the environment with the corresponding in plants. L. racemosa showed variations in their root anatomy in different collection areas, with highest values of cortex/vascular cylinder ratio, periderm thickness and air gap area in Vitória Bay, the most polluted sampling area. These three parameters were also important to differentiate the mangrove areas by linear discriminant analysis. The development stage of aerenchyma in roots reflected the oxygen availability in the water, being found a negative correlation between these variables. The combined use of chemical and biological analyses responded quite well to different pollution scenarios, matching morphological responses to physical and chemical parameters, measured at different partitions within the estuary. Thus, L. racemosa can be confirmed as a reliable sentinel plant for biomonitoring of estuaries impacted by anthropic pollution.
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Affiliation(s)
- Iara da Souza
- Department of Physiological Sciences, Federal University of São Carlos, Ave. Washington Luiz, Km 235, São Carlos, São Paulo, 13565-905, Brazil
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30
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Wang Y, Fang L, Lin L, Luan T, Tam NFY. Effects of low molecular-weight organic acids and dehydrogenase activity in rhizosphere sediments of mangrove plants on phytoremediation of polycyclic aromatic hydrocarbons. Chemosphere 2014; 99:152-159. [PMID: 24287262 DOI: 10.1016/j.chemosphere.2013.10.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Revised: 09/29/2013] [Accepted: 10/16/2013] [Indexed: 06/02/2023]
Abstract
This work evaluated the roles of the low-molecular-weight organic acids (LMWOAs) from root exudates and the dehydrogenase activity in the rhizosphere sediments of three mangrove plant species on the removal of mixed PAHs. The results showed that the concentrations of LMWOAs and dehydrogenase activity changed species-specifically with the levels of PAH contamination. In all plant species, the concentration of citric acid was the highest, followed by succinic acid. For these acids, succinic acid was positively related to the removal of all the PAHs except Chr. Positive correlations were also found between the removal percentages of 4-and 5-ring PAHs and all LMWOAs, except citric acid. LMWOAs enhanced dehydrogenase activity, which positively related to PAH removal percentages. These findings suggested that LMWOAs and dehydrogenase activity promoted the removal of PAHs. Among three mangrove plants, Bruguiera gymnorrhiza, the plant with the highest root biomass, dehydrogenase activity and concentrations of LMWOAs, was most efficient in removing PAHs.
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Affiliation(s)
- Yuanyuan Wang
- MOE Key Laboratory of Aquatic Product Safety, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institute, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Ling Fang
- MOE Key Laboratory of Aquatic Product Safety, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institute, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China
| | - Li Lin
- MOE Key Laboratory of Aquatic Product Safety, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institute, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China.
| | - Tiangang Luan
- MOE Key Laboratory of Aquatic Product Safety, Key Laboratory of Biodiversity Dynamics and Conservation of Guangdong Higher Education Institute, School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China; Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Nora F Y Tam
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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31
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Wu C, Li H, Ye Z, Wu F, Wong MH. Effects of As levels on radial oxygen loss and As speciation in rice. Environ Sci Pollut Res Int 2013; 20:8334-41. [PMID: 24006158 DOI: 10.1007/s11356-013-2083-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 08/21/2013] [Indexed: 05/13/2023]
Abstract
Greenhouse experiment was conducted to examine effects of arsenic (As) on iron plaque formation, radial oxygen loss, As accumulation, and speciation in rice. Three genotypes were grown in soil with three different concentrations of As. The stress of As caused a slight increase of iron plaque formation (P>0.05) and a decrease in the rates of radial oxygen loss (ROL; P<0.01). The results of As speciation showed that the percentages of DMA increased from 19-28 % to 53-58 %, while the percentages of inorganic As decreased from 53-58 % to 36-42 % with the increasing soil As concentrations, indicating a strong environmental influence on As species in rice grain. The present study showed that elevated soil As may induce As toxicity towards rice plants, leading to the decrease of ROL; environmental factors could influence As methylation or As species transportation. Our study provided useful information on As tolerance and accumulation in rice which may contribute to reducing the health risk posed by As contamination in rice.
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Affiliation(s)
- Chuan Wu
- Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, People's Republic of China
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Zhang Q, Yan C, Liu J, Lu H, Wang W, Du J, Duan H. Silicon alleviates cadmium toxicity in Avicennia marina (Forsk.) Vierh. seedlings in relation to root anatomy and radial oxygen loss. Mar Pollut Bull 2013; 76:187-193. [PMID: 24095049 DOI: 10.1016/j.marpolbul.2013.09.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 08/26/2013] [Accepted: 09/01/2013] [Indexed: 06/02/2023]
Abstract
The effects of Si on growth, the anatomy of the roots, radial oxygen loss (ROL) and Fe/Mn plaque on the root surface were investigated in Avicennia marina (Forsk.) Vierh. seedlings under Cd stress. Si prompted the growth of seedlings and reduced the Cd concentration in the root, stem and leaf of A. marina. Si prompted the development of the apoplastic barrier in the roots, which may be related to the reduction of Cd uptake. The higher amount of ROL and Mn plaque on the root surface due to Si were also related to the promotion of Cd tolerance in A. marina seedlings. Therefore, it is concluded that the alteration of the anatomy of the roots, the increase of ROL and Mn plaque of A. marina seedlings play an important role in alleviation of Cd toxicity due to Si.
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Affiliation(s)
- Qiong Zhang
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, School of Life Sciences, Xiamen University, Xiangan South Road, Xiangan District, Xiamen 361102, Fujian Province, PR China; Department of Biological Sciences and Biotechnology, Minnan Normal University, Zhangzhou 363000, Fujian Province, PR China
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Du J, Yan C, Li Z. Formation of iron plaque on mangrove Kandalar. Obovata (S.L.) root surfaces and its role in cadmium uptake and translocation. Mar Pollut Bull 2013; 74:105-9. [PMID: 23932478 DOI: 10.1016/j.marpolbul.2013.07.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2013] [Revised: 07/10/2013] [Accepted: 07/12/2013] [Indexed: 05/16/2023]
Abstract
In this study, a pot experiment was conducted to investigate the formation of iron plaque under Cd stress and its role in Cd uptake and translocation by mangrove Kandalar. Obovata (S.L.). Results showed: 1. the Fe in dithionite–citrate–bicarbonate (DCB) extracts increased with an increasing rate of Cd treatments. 2. the Cd in DCB extracts and in roots and above-ground tissues significantly increased with an increasing Cd application; 3. significant positive correlation between concentration of Cd and Fe in DCB extracts existed (p < 0.05); and that 4. the proportion of Cd in DCB extracts was significantly lower than that in roots or above-ground tissues (p < 0.001). In conclusion, formation of Fe plaque can precipitate Cd on root surfaces and impede its uptake and translocation in Kandalar. Obovata (S.L.). However, in comparison with root tissues, Fe plaque is of little significance. It is the mangrove root tissue that acts as the main buffer to Cd uptake and translocation.
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Affiliation(s)
- Jingna Du
- Key Laboratory of Ministry of Education for Coastal and Wetland Ecosystems, Xiamen University, Xiamen 361005, China
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Xie X, Weiss DJ, Weng B, Liu J, Lu H, Yan C. The short-term effect of cadmium on low molecular weight organic acid and amino acid exudation from mangrove (Kandelia obovata (S., L.) Yong) roots. Environ Sci Pollut Res Int 2013; 20:997-1008. [PMID: 22729874 DOI: 10.1007/s11356-012-1031-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Accepted: 06/05/2012] [Indexed: 05/22/2023]
Abstract
The aim of this study was to evaluate short-term concentration and time effects of cadmium on Kandelia obovata (S., L.) Yong root exudation, thereby evaluating and predicting the ecophysiological effects of mangrove to heavy metals at the root level. Mature K. obovata propagules were cultivated in a sandy medium for 3 months, and then six concentrations of Cd (0, 2.5, 5, 10, 20, and 40 mg L(-1)) were applied. After exposure time of 24 h and 7 days, respectively, the root exudates of K. obovata were collected and low molecular weight organic acids (LMWOAs) and amino acids of which were analyzed. In addition, we measured glutathione, soluble protein content, and Cd concentration in the plant. We found 10 and 15 types of LMWOAs and amino acids in root exudates of K. obovata with total concentrations ranging from 29.54 to 43.08 mg g(-1) dry weight (DW) roots and from 737.35 to 1,452.46 ng g(-1) DW roots, respectively. Both of them varied in quality and quantity under different Cd treatment strengths and exposure times. Oxalic, acetic, L-malic, tartaric acid, tyrosine, methionine, cysteine, isoleucine, and arginine were dominant. Both LMWOAs and amino acids excreted from K. obovata roots play a key role in Cd toxicity resistance. The responsiveness of amino acids was less than that of LMWOAs. We suggest that the ecological effect of root-excreted free amino acids in the rhizosphere is mainly based on the role of nutrients, supplemented with detoxification to heavy metals.
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Affiliation(s)
- Xiangyu Xie
- Laboratory of Pollution Ecology, School of Life Sciences, Xiamen University, Xiamen 361005, People's Republic of China
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Teuchies J, De Jonge M, Meire P, Blust R, Bervoets L. Can acid volatile sulfides (AVS) influence metal concentrations in the macrophyte Myriophyllum aquaticum? Environ Sci Technol 2012; 46:9129-9137. [PMID: 22853009 DOI: 10.1021/es300816y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The difference between the molar concentrations of simultaneously extracted metals (SEM) and acid volatile sulfides (AVS) is widely used to predict metal availability toward invertebrates in hypoxic sediments. However, this model is poorly investigated for macrophytes. The present study evaluates metal accumulation in roots and stems of the macrophyte Myriophyllum aquaticum during a 54 day lab experiment. The macrophytes, rooting in metal contaminated, hypoxic, and sulfide rich field sediments were exposed to surface water with 40% or 90% oxygen. High oxygen concentrations in the 90% treatment resulted in dissolution of the metal-sulfide complexes and a gradual increase in labile metal concentrations during the experiment. However, the general trend of increasing availability in the sediment with time was not translated in rising M. aquaticum metal concentrations. Processes at the root-sediment interface, e.g., radial oxygen loss (ROL) or the release of organic compounds by plant roots and their effect on metal availability in the rhizosphere may be of larger importance for metal accumulation than the bulk metal mobility predicted by the SEM-AVS model.
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Affiliation(s)
- Johannes Teuchies
- Department of Biology, Ecosystem Management Research Group, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
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Cheng H, Wang YS, Ye ZH, Chen DT, Wang YT, Peng YL, Wang LY. Influence of N deficiency and salinity on metal (Pb, Zn and Cu) accumulation and tolerance by Rhizophora stylosa in relation to root anatomy and permeability. Environ Pollut 2012; 164:110-117. [PMID: 22361050 DOI: 10.1016/j.envpol.2012.01.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2011] [Revised: 01/11/2012] [Accepted: 01/20/2012] [Indexed: 05/31/2023]
Abstract
Effects of N deficiency and salinity on root anatomy, permeability and metal (Pb, Zn and Cu) translocation and tolerance were investigated using mangrove seedlings of Rhizophora stylosa. The results showed that salt could directly reduce radial oxygen loss (ROL) by stimulation of lignification within exodermis. N deficiency, oppositely, would reduce lignification. Such an alteration in root permeability may also influence metal tolerance by plants. The data indicated that a moderate salinity could stimulate a lignified exodermis that delayed the entry of metals into the roots and thereby contributed to a higher metal tolerance, while N deficiency would aggravate metal toxicity. The results from sand pot trail further confirmed this issue. This study provides a barrier property of the exodermis in dealing with environments. The plasticity of root anatomy is likely an adaptive strategy to regulate the fluxes of gases, nutrients and toxins at root-soil interface.
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Affiliation(s)
- Hao Cheng
- State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
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Wu C, Ye Z, Li H, Wu S, Deng D, Zhu Y, Wong M. Do radial oxygen loss and external aeration affect iron plaque formation and arsenic accumulation and speciation in rice? J Exp Bot 2012; 63:2961-70. [PMID: 22345639 PMCID: PMC3350917 DOI: 10.1093/jxb/ers017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2011] [Revised: 11/24/2011] [Accepted: 01/08/2012] [Indexed: 05/02/2023]
Abstract
Hydroponic experiments were conducted to investigate the effect of radial oxygen loss (ROL) and external aeration on iron (Fe) plaque formation, and arsenic (As) accumulation and speciation in rice (Oryza sativa L.). The data showed that there were significant correlations between ROL and Fe concentrations in Fe plaque produced on different genotypes of rice. There were also significant differences in the amounts of Fe plaque formed between different genotypes in different positions of roots and under different aeration conditions (aerated, normal, and stagnant treatments). In aerated treatments, rice tended to have a higher Fe plaque formation than in a stagnant solution, with the greatest formation at the root tip decreasing with increasing distances away, in accordance with a trend of spatial ROL. Genotypes with higher rates of ROL induced higher degrees of Fe plaque formation. Plaques sequestered As on rice roots, with arsenate almost double that with arsenite, leading to decreased As accumulation in both roots and shoots. The major As species detected in roots and shoots was arsenite, ranging from 34 to 78% of the total As in the different treatments and genotypes. These results contribute to our understanding of genotypic differences in As uptake by rice and the mechanisms causing rice genotypes with higher ROL to show lower overall As accumulation.
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Affiliation(s)
- Chuan Wu
- Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, PR China
- School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, Linan 311300, PR China
| | - Zhihong Ye
- State Key Laboratory for Bio-control, and School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
| | - Hui Li
- Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, PR China
- School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, Linan 311300, PR China
| | - Shengchun Wu
- Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, PR China
- School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, Linan 311300, PR China
| | - Dan Deng
- Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, PR China
- School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, Linan 311300, PR China
| | - Yongguan Zhu
- Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Haidian, Beijing 100085, PR China
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Science, Xiamen 361021, PR China
| | - Minghung Wong
- Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, PR China
- School of Environmental and Resource Sciences, Zhejiang Agriculture and Forestry University, Linan 311300, PR China
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Cheng H, Chen DT, Tam NFY, Chen GZ, Li SY, Ye ZH. Interactions among Fe2+, S2-, and Zn2+ tolerance, root anatomy, and radial oxygen loss in mangrove plants. J Exp Bot 2012; 63:2619-30. [PMID: 22268157 DOI: 10.1093/jxb/err440] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Root anatomy, radial oxygen loss (ROL), and tolerances to ferrous (Fe(2+)), sulphide (S(2-)), and zinc (Zn(2+)) ions were investigated in seedlings of eight species of mangrove, including three pioneer species, three rhizophoraceous and two landward semi-mangrove species. The results showed an interesting co-tolerance to Fe(2+), S(2-), and Zn(2+). The three rhizophoraceous species (Bruguiera gymnorrhiza, Kandelia obovata and Rhizophora stylosa), which possessed the thickest lignified exodermis and the 'tightest barrier' in ROL spatial pattern, consistently exhibited the highest tolerance to Fe(2+), S(2-), and Zn(2+). B. gymnorrhiza could directly reduce ROL by increasing lignification within the exodermis. Such an induced barrier to ROL is a probable defence response to prevent further invasion and spread of toxins within plants. The data also indicated that, in B. gymnorrhiza, Fe(2+) or S(2-), or both, induced a lignified exodermis that delayed the entry of Zn(2+) into the roots and thereby contributed to a higher tolerance to Zn(2+). This study provides new evidence of exclusive strategies of mangrove seedling roots in dealing with contaminations. The information is also important in the selection and cultivation of tolerant species for the bioremediation of contaminated waters or soils.
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Affiliation(s)
- Hao Cheng
- State Key Laboratory for Bio-control, School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
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Banerjee K, Senthilkumar B, Purvaja R, Ramesh R. Sedimentation and trace metal distribution in selected locations of Sundarbans mangroves and Hooghly estuary, northeast coast of India. Environ Geochem Health 2012; 34:27-42. [PMID: 21461887 DOI: 10.1007/s10653-011-9388-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Accepted: 03/16/2011] [Indexed: 05/30/2023]
Abstract
Four sediment cores were collected from selected locations of Sundarbans mangroves and Hooghly estuary, northeast coast of India to establish (210)Pb geochronology and trace metal distribution in sediments. Core sites were chosen to reflect a matrix of variable anthropogenic input and hydrological conditions. The vertical distribution of (210)Pb(xs) ((210)Pb(total)-(226)Ra) provided reliable geochronological age to calculate the mass accumulation rates and historic trace element inputs and their variations. The mass accumulation rates ranged from 0.41 g cm(-2) year(-1) (estuarine region) to 0.66 g cm(-2) year(-1) (mangrove region). Both in mangroves and estuarine systems, Fe-Mn oxy-hydroxides are observed to be a major controlling factor for trace metal accumulation when compared to organic carbon. Core collected from Hooghly estuary shows less contamination when compared to the mangrove region due to high energy and mostly coarse grained. Fe-normalized enrichment factors (EFs) of trace metals were calculated based on crustal trace element abundances. The EFs are typically >1 for Cd, Pb, Co, and Cu indicating that these metals are highly enriched while other metals such as Zn, Ni, Cr, and Mn show no enrichment or depletion. Both Sundarbans mangroves and Hooghly estuary have been receiving considerable pollution loads from anthropogenic sources such as industrial, domestic, and shipping activities in recent times, indicating high concentration of metals in the top few layers. This study suggests that the variation in trace metals content with depth or between mangrove and estuarine system results largely from metal input due to anthropogenic activities rather than diagenetic processes.
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Affiliation(s)
- Kakolee Banerjee
- Institute for Ocean Management, Anna University, Chennai 600025, India.
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Lewis M, Pryor R, Wilking L. Fate and effects of anthropogenic chemicals in mangrove ecosystems: a review. Environ Pollut 2011; 159:2328-2346. [PMID: 21601968 DOI: 10.1016/j.envpol.2011.04.027] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 04/12/2011] [Accepted: 04/17/2011] [Indexed: 05/30/2023]
Abstract
The scientific literature for fate and effects of non-nutrient contaminant concentrations is skewed for reports describing sediment contamination and bioaccumulation for trace metals. Concentrations for at least 22 trace metals have been reported in mangrove sediments. Some concentrations exceed sediment quality guidelines suggesting adverse effects. Bioaccumulation results are available for at least 11 trace metals, 12 mangrove tissues, 33 mangrove species and 53 species of mangrove-habitat biota. Results are specific to species, tissues, life stage, and season and accumulated concentrations and bioconcentration factors are usually low. Toxicity tests have been conducted with 12 mangrove species and 8 species of mangrove-related fauna. As many as 39 effect parameters, most sublethal, have been monitored during the usual 3 to 6 month test durations. Generalizations and extrapolations for toxicity between species and chemicals are restricted by data scarcity and lack of experimental consistency. This hinders chemical risk assessments and validation of effects-based criteria.
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Affiliation(s)
- Michael Lewis
- US Environmental Protection Agency, Office of Research and Development, 1 Sabine Island Drive, Gulf Breeze, FL 32561, USA.
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Wu C, Ye Z, Shu W, Zhu Y, Wong M. Arsenic accumulation and speciation in rice are affected by root aeration and variation of genotypes. J Exp Bot 2011; 62:2889-98. [PMID: 21292821 DOI: 10.1093/jxb/erq462] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Root aeration, arsenic (As) accumulation, and speciation in rice of 20 different genotypes with regular irrigation of water containing 0.4 mg As l(-1) were investigated. Different genotypes had different root anatomy demonstrated by entire root porosity (ranging from 12.43% to 33.21%), which was significantly correlated with radial oxygen loss (ROL) (R=0.64, P<0.01). Arsenic accumulation differed between genotypes, but there were no significant differences between Indica and Japonica subspecies, as well as paddy and upland rice. Total ROL from entire roots was correlated with metal tolerance (expressed as percentage mean of control straw biomass, R=0.69, P<0.01) among the 20 genotypes; total As concentration (R=-0.67, P<0.01) and inorganic As concentration (R=-0.47, P<0.05) in rice grains of different genotypes were negatively correlated with ROL. There were also significant genotype effects in percentage inorganic As (F=15.8, P<0.001) and percentage cacodylic acid (F=22.1, P<0.001), respectively. Root aeration of different genotypes and variation of genotypes on As accumulation and speciation would be useful for selecting genotypes to grow in areas contaminated by As.
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Affiliation(s)
- Chuan Wu
- Croucher Institute for Environmental Sciences, and Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, PR China
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Cheng H, Liu Y, Tam NFY, Wang X, Li SY, Chen GZ, Ye ZH. The role of radial oxygen loss and root anatomy on zinc uptake and tolerance in mangrove seedlings. Environ Pollut 2010; 158:1189-1196. [PMID: 20219275 DOI: 10.1016/j.envpol.2010.01.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Revised: 01/18/2010] [Accepted: 01/31/2010] [Indexed: 05/28/2023]
Abstract
Root anatomy, radial oxygen loss (ROL) and zinc (Zn) uptake and tolerance in mangrove plants were investigated using seedlings of Aegiceras corniculatum, Bruguiera gymnorrhiza and Rhizophora stylosa. The results revealed that B. gymnorrhiza, which possessed the 'tightest barrier' in ROL spatial patterns among the three species studied, took up the least Zn and showed the highest Zn tolerance. Furthermore, zinc significantly decreased the ROL of all three plants by inhibition of root permeability, which included an obvious thickening of outer cortex and significant increases of lignification in cell walls. The results of SEM X-ray microanalysis further confirmed that such an inducible, low permeability of roots was likely an adaptive strategy to metal stress by direct prevention of excessive Zn entering into the root. The present study proposes new evidence of structural adaptive strategy on metal tolerance by mangrove seedlings.
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Affiliation(s)
- H Cheng
- State Key Laboratory for Bio-control, and School of Life Sciences, Sun Yat-sen University, Guangzhou 510006, PR China
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