1
|
Li L, Zhu P, Wang X, Zhang Z. Phytoremediation effect of Medicago sativa colonized by Piriformospora indica in the phenanthrene and cadmium co-contaminated soil. BMC Biotechnol 2020; 20:20. [PMID: 32345267 PMCID: PMC7187505 DOI: 10.1186/s12896-020-00613-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 04/21/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The coexistence of polycyclic aromatic hydrocarbons (PAHs) and heavy metals has deleterious effects on environmental quality. Few reports have studied the mechanisms of plant inoculation with Piriformospora indica to remediate PAH-metal co-contaminated soil by analyzing the chemical speciation of the contaminants. This study investigated the influence of the inoculation of Medicago sativa with P. indica to remediate soil co-contaminated with phenanthrene (a kind of PAH) and cadmium (a heavy metal) by analyzing plant growth, physiological parameters and chemical speciation in rhizosphere and nonrhizosphere soils. RESULTS The presence of P. indica significantly increased plant tolerance, chlorophyll a, chlorophyll b, maximum quantum efficiency of PSII photochemistry and electron transport rate values in phenanthrene- and/or cadmium-contaminated soil. P. indica inoculation in M. sativa roots increased fluorescein diacetate activities in soils contaminated with phenanthrene, cadmium or both, especially in the nonrhizosphere. The presence of phenanthrene prevented the inoculated plant from accumulating cadmium to some extent, whereas the presence of cadmium did not prevent the degradation of phenanthrene in either the rhizosphere or the nonrhizosphere after P. indica colonization. Although the low bioavailability of cadmium in the rhizosphere restricted its transportation into the stem, P. indica colonization in plants effectively increased cadmium accumulation in roots in soil co-contaminated with cadmium and phenanthrene. CONCLUSIONS In conclusion, this work provides a theoretical basis for the use of P. indica combined with M. sativa for the remediation of PAH-metal co-contaminated soil.
Collapse
Affiliation(s)
- Liang Li
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China. .,National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization, Tianjin, China.
| | - Pengyue Zhu
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China.,School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Xiaoyang Wang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Zhenhua Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| |
Collapse
|
2
|
Carretta L, Cardinali A, Masin R, Zanin G, Cederlund H. Decyl glucoside surfactant Triton CG-110 does not significantly affect the environmental fate of glyphosate in the soil at environmentally relevant concentrations. JOURNAL OF HAZARDOUS MATERIALS 2020; 388:122111. [PMID: 31958613 DOI: 10.1016/j.jhazmat.2020.122111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/13/2019] [Accepted: 01/13/2020] [Indexed: 06/10/2023]
Abstract
Glyphosate is the most common herbicide worldwide, and its impact on the environment has increasingly been scrutinized. Glyphosate-based formulations can contain co-formulants, among which are surfactants. This study aimed to investigate whether the presence of an alkyl polyglucoside-based surfactant, Triton CG-110, affects the adsorption, leaching, and mineralisation of glyphosate in the soil. The experiments were conducted in two soils with different textures (sandy and clay) and in washed sand. Glyphosate and surfactant mixtures were applied at realistic field rates. Because of ponding and scarce leaching from the field soil, the leaching experiments were conducted only with washed sand. The results indicate a reduction of glyphosate adsorption in washed sand (from Kf = 13.5 to 3.99 μg1-1/n (ml)1/n g-1) and in sandy soil (from Kf = 165 to 90.8 μg1-1/ n (ml)1/n g-1) when using a Triton CG-110 concentration of 0.5 %, which corresponds to that of a spraying solution applied in the field, whereas adsorption in clay soil was unaffected. Triton CG-110 did not significantly affect glyphosate leaching in washed sand or mineralisation in any of the tested soils. The results indicate that Triton CG-110 is unlikely to significantly affect the environmental fate of glyphosate in the soil at environmentally relevant concentrations.
Collapse
Affiliation(s)
- Laura Carretta
- University of Padova, Department of Agronomy, Food, Natural resources, Animals and Environment, Viale dell' Università 16, 35020, Legnaro (PD), Italy.
| | - Alessandra Cardinali
- University of Padova, Department of Agronomy, Food, Natural resources, Animals and Environment, Viale dell' Università 16, 35020, Legnaro (PD), Italy
| | - Roberta Masin
- University of Padova, Department of Agronomy, Food, Natural resources, Animals and Environment, Viale dell' Università 16, 35020, Legnaro (PD), Italy
| | - Giuseppe Zanin
- University of Padova, Department of Agronomy, Food, Natural resources, Animals and Environment, Viale dell' Università 16, 35020, Legnaro (PD), Italy
| | - Harald Cederlund
- Swedish University of Agricultural Sciences, Department of Molecular Sciences, Box 7015, Uppsala, Sweden
| |
Collapse
|
3
|
Zhang X, Su C, Liu X, Liu Z, Liang X, Zhang Y, Feng Y. Effect of plant-growth-promoting rhizobacteria on phytoremediation efficiency of Scirpus triqueter in pyrene-Ni co-contaminated soils. CHEMOSPHERE 2020; 241:125027. [PMID: 31606002 DOI: 10.1016/j.chemosphere.2019.125027] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/21/2019] [Accepted: 09/30/2019] [Indexed: 06/10/2023]
Abstract
The aim of this study was to investigate whether the plant-growth-promoting rhizobacteria (PGPR) could enhance phytoremediation efficiency of Scirpus triqueter (S.triqueter) in the pyrene-Ni co-contaminated soil. We also expected to reveal the possible mechanism for the affected phytoremediation efficiency induced by PGPR. We used three kinds of contaminated soils (Ni-contaminated soil, pyrene-contaminated soil and pyrene-Ni co-contaminated soil) to conduct this pot study. After harvest, plants growth indicators, polyphenol oxidase (PPO) activity and soil microbial community structure of each treatment were investigated to explain the different dissipation rates of pyrene and removal rates of Ni between treatments with and without PGPR. The results showed that PGPR-inoculated S. triqueter increased dissipation rates of pyrene and removal rates of Ni in all three contaminated soils, among which Ni removal rates in Ni single contaminated soil was elevated most significantly, from 0.895‰ to 8.8‰, increasing nearly 9 folds. However, Ni removal rate efficiency in co-contaminated soil was weakened because more toxic and complicated co-contaminated soil restrained plant growth and Ni absorption. We also observed that co-contamination harmed the soil microbial community more severely than that in single pyrene or Ni contaminated soil through phospholipid fatty acids analysis. Furthermore, dissipation rates of pyrene and removal rates of Ni were found positively correlated to the PPO activity and the abundance of branched and saturated fatty acids reflected by Pearson correlation analysis.
Collapse
Affiliation(s)
- Xinying Zhang
- College of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Chang Su
- College of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Xiaoyan Liu
- College of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China.
| | - Zhenguo Liu
- College of Life Sciences, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Xia Liang
- College of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Yanming Zhang
- College of Environmental and Chemical Engineering, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| | - Yuwei Feng
- College of Life Sciences, Shanghai University, 99 Shangda Road, Shanghai, 200444, China
| |
Collapse
|
4
|
Chen X, Liu X, Zhang X, Cao L, Hu X. Phytoremediation effect of Scirpus triqueter inoculated plant-growth-promoting bacteria (PGPB) on different fractions of pyrene and Ni in co-contaminated soils. JOURNAL OF HAZARDOUS MATERIALS 2017; 325:319-326. [PMID: 27951500 DOI: 10.1016/j.jhazmat.2016.12.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 11/07/2016] [Accepted: 12/03/2016] [Indexed: 05/27/2023]
Abstract
At present, few reveal the mechanism of inoculation plants with PGPB to remediate PAH-metal co-contaminated soil by analyzing the chemical speciations of contaminants. This study investigated the influence of inoculation plants with PGPB on different fractions of pyrene and Ni in rhizospheric and non-rhizospheric soil. The results demonstrated that the addition of PGPB brought the extensive increase of FDA activities in pyrene-Ni co-contaminated soil. PGPB increased the resistance of plants in nickel and pyrene-Ni contaminated soil, but decreased the plant biomass in single pyrene contaminated soil. The addition of PGPB efficiently decreased bioaccessible fractions of pyrene and increased the bioavailability of Ni in both rhizospheric and non-rhizospheric soil. Although inoculation plants with PGPB significantly increased the accumulation of Ni in single Ni and pyrene-Ni co-contaminated soil, the poor bioavailability of Ni in rhizospheric soil still restricted the phytoremediation of the heavy metal. The presence of pyrene hindered the inoculated plant from accumulating Ni to some extent. On the contrary, the presence of Ni significantly promoted the degradation of pyrene in both rhizospheric and non-rhizospheric soil after inoculation plants with PGPB.
Collapse
Affiliation(s)
- Xiao Chen
- Laboratory of environmental remediation, College of environmental and chemical engineering, Shanghai University, Shanghai 200444, China
| | - Xiaoyan Liu
- Laboratory of environmental remediation, College of environmental and chemical engineering, Shanghai University, Shanghai 200444, China.
| | - Xinying Zhang
- Laboratory of environmental remediation, College of environmental and chemical engineering, Shanghai University, Shanghai 200444, China
| | - Liya Cao
- Laboratory of environmental remediation, College of environmental and chemical engineering, Shanghai University, Shanghai 200444, China
| | - Xiaoxin Hu
- Laboratory of environmental remediation, College of environmental and chemical engineering, Shanghai University, Shanghai 200444, China
| |
Collapse
|
5
|
Wu J, Feng Y, Dai Y, Cui N, Anderson B, Cheng S. Biological mechanisms associated with triazophos (TAP) removal by horizontal subsurface flow constructed wetlands (HSFCW). THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 553:13-19. [PMID: 26897579 DOI: 10.1016/j.scitotenv.2016.02.067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 02/09/2016] [Accepted: 02/09/2016] [Indexed: 06/05/2023]
Abstract
Triazophos (TAP) is a widely used pesticide that is easily accumulated in the environment due to its relatively high stability: this accumulation from agricultural runoff results in potential hazards to aquatic ecosystems. Constructed wetlands are generally considered to be an effective technology for treating TAP polluted surface water. However, knowledge about the biological mechanisms of TAP removal is still lacking. This study investigates the responses of a wetland plant (Canna indica), substrate enzymes and microbial communities in bench-scale horizontal subsurface-flow constructed wetlands (HSCWs) loaded with different TAP concentrations (0, 0.1, 0.5 and 5 mg · L(-1)). The results indicate that TAP stimulated the activities of superoxide dismutase (SOD) and peroxidase (POD) in the roots of C. indica. The highest TAP concentrations significantly inhibited photosynthetic activities, as shown by a reduced effective quantum yield of PS II (ΦPS II) and lower electron transport rates (ETR). However, interestingly, the lower TAP loadings exhibited some favorable effects on these two variables, suggesting that C. indica is a suitable species for use in wetlands designed for treatment of low TAP concentrations. Urease and alkaline phosphatase (ALP) in the wetland substrate were activated by TAP. Two-way ANOVA demonstrated that urease activity was influenced by both the TAP concentrations and season, while acidphosphatase (ACP) only responded to seasonal variations. Analysis of high throughput sequencing of 16S rRNA revealed seasonal variations in the microbial community structure of the wetland substrate at the phylum and family levels. In addition, urease activity had a greater correlation with the relative abundance of some functional microbial groups, such as the Bacillaceae family, and the ALP and ACP may be influenced by the plant more than substrate microbial communities.
Collapse
Affiliation(s)
- Juan Wu
- State Key Laboratory of Pollution Control and ResourceReuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Yuqin Feng
- State Key Laboratory of Pollution Control and ResourceReuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Yanran Dai
- State Key Laboratory of Pollution Control and ResourceReuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Naxin Cui
- State Key Laboratory of Pollution Control and ResourceReuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
| | - Bruce Anderson
- Department of Civil Engineering, Queen's University, Kingston K7L3N6, Canada
| | - Shuiping Cheng
- State Key Laboratory of Pollution Control and ResourceReuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China.
| |
Collapse
|
6
|
Phytoremediation of Pb and Hg by using Scirpus mucronatus with addition of bacterial inoculums. J Radioanal Nucl Chem 2014. [DOI: 10.1007/s10967-014-3775-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
7
|
Sediment type affects competition between a native and an exotic species in coastal China. Sci Rep 2014; 4:6748. [PMID: 25339574 PMCID: PMC4206839 DOI: 10.1038/srep06748] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 10/02/2014] [Indexed: 12/03/2022] Open
Abstract
Different types of sediments in salt marsh have different physical and chemical characters. Thus sediment type plays a role in plant competition and growth in salt marsh ecosystems. Spartina anglica populations have been increasingly confined to upper elevation gradients of clay, and the niche sediment has changed. Because the niches of S. anglica and the native species Scirpus triqueter overlap, we conducted a greenhouse experiment to test the hypothesis that plant competition has changed under different types of sediments. Biomass and asexual reproduction were analyzed, and inter- and intraspecific competition was measured by log response ratio for the two species in both monoculture and combination under three sediment types (sand, clay and mixture of sand and clay). For S. anglica, biomass, ramet number and rhizome length in combination declined significantly compared with those in monoculture, and the intensity of interspecific competition was significantly higher than that of intraspecific competition under all sediments. For S. triqueter, the intensities of intra- and interspecific competition were not significantly different. This indicates that S. triqueter exerts an asymmetric competitive advantage over S. anglica across all sediments, but especially clay. Thus the sediment type changes competition between S. anglica and S. triqueter.
Collapse
|
8
|
Ning Y, Zhang ZX, Cui LJ, Zou CL. Adaptive Significance of and Factors Affecting Plasticity of Biomass Allocation and Rhizome Morphology: a Case Study of the Clonal PlantScirpus planiculmis(Cyperaceae). POLISH JOURNAL OF ECOLOGY 2014. [DOI: 10.3161/104.062.0108] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
9
|
Abstract
Aquatic plant, Scirpus triqueter, uptake of PAHs was investigated with test time for periods of 336h. The effect of APG, an environment-friendly surfactant, on the plant uptake and distribution characteristics of PAHs in root and shoot of the plant were detected. Concentrations of phenanthrene and pyrene in the Scirpus triqueter root increased sharply at the early stage and reached the peak at 16 h, but in shoots elevated significantly and reached the peak at 48h. APG did not show any apparent phytotoxity toward the growth of Scirpus triqueter in the test concentration range. APG(≤30 mg L-1) can enhance the root uptake and root concentration factors (RCF) of phenanthrene in plant, whereas APG(>30 mg L-1) may inhibit the PAHs uptake by the plant. Results indicate that the APG would be a preferred selection for the application of surfactant-enhanced phytoremediation and optimal concentration should be determined before the application of APG.
Collapse
|