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Zhang Q, Jiang C, Jiang L, Qiu R, Wei Z, Wu Q. Cadmium phytoremediation potential of Houttuynia cordata: Insights from growth, uptake, and rhizosphere mechanisms. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 278:116417. [PMID: 38701655 DOI: 10.1016/j.ecoenv.2024.116417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/25/2024] [Accepted: 04/28/2024] [Indexed: 05/05/2024]
Abstract
Cadmium (Cd) pollutes 7.0 % of China's land area. This study examined the potential of Houttuynia cordata for Cd phytoremediation because of its ability to accumulate Cd in its growth matrix. H. cordata were planted in plastic pots filled with paddy field soils having low (LCd), medium (MCd), and high (HCd) Cd levels of 0.19, 0.69, and 2.91 mg/kg, respectively. After six months of growth, harvested plant parts were evaluated for Cd uptake and tolerance mechanisms. Metabolomics and metagenomics approaches were employed to investigate the soil rhizosphere mechanism. Results showed that the average plant biomass increased as soil Cd increased. The biomass Cd contents surpassed the allowable Cd limits for food (≤ 0.2 mg/kg) and medicinal uses (≤ 0.3 mg/kg). Cd contents were higher in H. cordata roots (30.59-86.27 mg/kg) than in other plant parts (0.63-2.90 mg/kg), with significantly increasing values as Cd soil level increased. Phenolic acids, lipids, amino acids and derivatives, organic acids, and alkaloids comprised the majority (69 in MCd vs HCd and 73 % in LCd vs HCd) of the shared upregulated metabolites. In addition, 13 metabolites specific to H. cordata root exudates were significantly increased. The top two principal metabolic pathways were arginine and proline metabolism, and beta-alanine metabolism. H. cordata increased the abundance of Firmicutes and Glomeromycota across all three Cd levels, and also stimulated the growth of Patescibacteria, Rozellomycota, and Claroideoglomus in HCd. Accordingly, H. cordata demonstrated potential for remediation of Cd-contaminated soils, and safety measures for its production and food use must be highly considered.
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Affiliation(s)
- QingQing Zhang
- College of Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Cheng'Ai Jiang
- College of Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou, Guangdong 510642, China.
| | - LuoYan Jiang
- College of Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - RongLiang Qiu
- College of Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou, Guangdong 510642, China
| | - ZeBin Wei
- College of Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou, Guangdong 510642, China
| | - QiTang Wu
- College of Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, Guangzhou, Guangdong 510642, China
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2
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Raina R, Sharma P, Batish DR, Singh HP. Assessment of natural low molecular weight organic acids in facilitating cadmium phytoextraction by Lepidium didymus (Brassicaceae). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:38990-38998. [PMID: 37277587 DOI: 10.1007/s11356-023-27719-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 05/13/2023] [Indexed: 06/07/2023]
Abstract
The present study examined the ability of three naturally occurring low molecular weight organic acids (tartaric, TA; citric, CA; and oxalic, OA) to improve the efficiency of cadmium (Cd) phytoextraction in Lepidium didymus L. (Brassicaceae). The plants were grown in soil containing three different concentrations, i.e., 35, 105, and 175 mg kg-1, of total Cd and 10 mM of TA, CA, and OA. After 6 weeks, plant height, dry biomass, photosynthetic traits, and metal accumulation were determined. All three organic chelants significantly increased the Cd accumulation in L. didymus plants; however, the greatest accumulation was seen with TA (TA > OA > CA). In general, Cd accumulation was the highest in the roots, followed by the stems, and the leaves. Highest BCFStem was observed upon the addition of TA (7.02) and CA (5.90) at Cd35, compared to Cd-alone (3.52) treatment. The BCF was the highest in the stem (7.02) and leaves (3.97) under Cd35 treatment supplemented with TA. The BCFRoot in the plants under different chelant treatments were in the following order: Cd35 + TA (~ 100) > Cd35 + OA (~ 84) > Cd35 + TA (~ 83). The stress tolerance index and translocation factor (root-stem) were maximal at Cd175 with TA and OA supplementation, respectively. The study concludes that L. didymus could be a viable option for Cd-remediation projects, and the addition of TA improved its phytoextraction efficiency.
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Affiliation(s)
- Riya Raina
- Department of Environment Studies, Panjab University, Chandigarh, 160 014, India
| | - Padma Sharma
- Department of Environment Studies, Panjab University, Chandigarh, 160 014, India
| | - Daizy R Batish
- Department of Botany, Panjab University, Chandigarh, 160 014, India
| | - Harminder Pal Singh
- Department of Environment Studies, Panjab University, Chandigarh, 160 014, India.
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Yu Y, Alseekh S, Zhu Z, Zhou K, Fernie AR. Multiomics and biotechnologies for understanding and influencing cadmium accumulation and stress response in plants. PLANT BIOTECHNOLOGY JOURNAL 2024. [PMID: 38817148 DOI: 10.1111/pbi.14379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 03/04/2024] [Accepted: 05/03/2024] [Indexed: 06/01/2024]
Abstract
Cadmium (Cd) is one of the most toxic heavy metals faced by plants and, additionally, via the food chain, threatens human health. It is principally dispersed through agro-ecosystems via anthropogenic activities and geogenic sources. Given its high mobility and persistence, Cd, although not required, can be readily assimilated by plants thereby posing a threat to plant growth and productivity as well as animal and human health. Thus, breeding crop plants in which the edible parts contain low to zero Cd as safe food stuffs and harvesting shoots of high Cd-containing plants as a route for decontaminating soils are vital strategies to cope with this problem. Recently, multiomics approaches have been employed to considerably enhance our understanding of the mechanisms underlying (i) Cd toxicity, (ii) Cd accumulation, (iii) Cd detoxification and (iv) Cd acquisition tolerance in plants. This information can be deployed in the development of the biotechnological tools for developing plants with modulated Cd tolerance and detoxification to safeguard cellular and genetic integrity as well as to minimize food chain contamination. The aim of this review is to provide a current update about the mechanisms involved in Cd uptake by plants and the recent developments in the area of multiomics approach in terms of Cd stress responses, as well as in the development of Cd tolerant and low Cd accumulating crops.
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Affiliation(s)
- Yan Yu
- School of Agronomy, Anhui Agricultural University, Hefei, China
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Saleh Alseekh
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Plovdiv, Bulgaria
| | - Zonghe Zhu
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | - Kejin Zhou
- School of Agronomy, Anhui Agricultural University, Hefei, China
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Plovdiv, Bulgaria
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Zhang K, Liu F, Zhang H, Duan Y, Luo J, Sun X, Wang M, Ye D, Wang M, Zhu Z, Li D. Trends in phytoremediation of heavy metals-contaminated soils: A Web of science and CiteSpace bibliometric analysis. CHEMOSPHERE 2024; 352:141293. [PMID: 38280645 DOI: 10.1016/j.chemosphere.2024.141293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 01/29/2024]
Abstract
Heavy metals pollution in soils is an urgent environmental issue worldwide. Phytoremediation is a green and eco-friendly way of remediating heavy metals. However, a systematic overview of this field is limited, and little is known about future development trends. Therefore, we used CiteSpace software to conduct bibliometric and visual analyses of published literature in the field of phytoremediation of heavy metals in soils from the Web of Science core collection and identified research hotspots and development trends in this field. Researchers are paying increased attention to phytoremediation of heavy metals in soils, especially environmental researchers. A total of 121 countries or regions, 3790 institutions, 4091 funded organisations and 15,482 authors have participated in research in this area. China, India, and Pakistan are the largest contributors. There has been extensive cooperation between countries, institutions, and authors worldwide, but there is a lack of cooperation among top authors. 'Calcareous soil', 'Co-contaminated soil' and 'Metal availability' are the most intensively investigated topics. 'EDTA', 'Plant growth-promoting Rhizobacteria', 'Photosynthesis', 'Biochar' and 'Phytoextraction' are research hotspots in this field. In addition, more and more researchers are beginning to pay attention to research on co-contaminated soil, metal availability, chelating agents, and microbial-assisted phytoremediation. In summary, bibliometric, and visual analyses in the field of phytoremediation of heavy metals in soils identifies probable directions for future research and provides a resource through which to better understand this rapidly advancing subject.
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Affiliation(s)
- Kailu Zhang
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China
| | - Fan Liu
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China
| | - Haixiang Zhang
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China
| | - Yali Duan
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China
| | - Jialiang Luo
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China
| | - Xiaoyan Sun
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China
| | - Meng Wang
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China
| | - Dandan Ye
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China
| | - Miaomiao Wang
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China
| | - Zhiqiang Zhu
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China.
| | - Dong Li
- School of Tropical Agriculture and Forestry, Hainan University, Haikou, 570228, China.
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Singh PK, Yadav JS, Kumar I, Kumar U, Sharma RK. Screening of mustard cultivars for phytoremediation of heavy metals contamination in wastewater irrigated soil systems. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:321. [PMID: 38418671 DOI: 10.1007/s10661-024-12506-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 02/24/2024] [Indexed: 03/02/2024]
Abstract
The mustard (Brassica juncea L.) plant is a well-known and widely accepted hyper-accumulator of heavy metals. The genetic makeup of mustard's cultivars may significantly impact their phytoremediation capabilities. The present study aimed to investigate the growth performance, yield attributes, and heavy metal accumulation potential of B. juncea cv. Varuna, NRCHB 101, RH 749, Giriraj, and Kranti, cultivated in soil irrigated with wastewater (EPS) and bore-well water (MPS). EPS contributed more Cr, Cd, Cu, Zn, and Ni to tested mustard cultivars than the MPS. EPS reduced morphological, biochemical, physiological, and yield attributes of tested mustard cultivars significantly (p < 0.05) than the MPS. Among the tested cultivars of mustard plants, Varuna had the highest heavy metal load with the lowest harvest index (35.8 and 0.21, respectively). Whereas NRCHB 101 showed the lowest heavy metal load with the highest harvest index (26.9 and 0.43, respectively). The present study suggests that B. juncea cv. Varuna and NRCHB 101 could be used for the phytoextraction of heavy metals and reducing their contamination in food chain, respectively in wastewater irrigated areas of peri-urban India. The outcomes of the present study can also be utilized to develop a management strategy for sustainable agriculture in heavy metal polluted areas resulting from long-term wastewater irrigation.
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Affiliation(s)
- Prince Kumar Singh
- Laboratory of Ecotoxicology, Department of Botany, Institute of Science, Banaras Hindu University, -221005, Varanasi, India
| | - Jay Shankar Yadav
- Laboratory of Ecotoxicology, Department of Botany, Institute of Science, Banaras Hindu University, -221005, Varanasi, India
| | - Indrajeet Kumar
- Laboratory of Ecotoxicology, Department of Botany, Institute of Science, Banaras Hindu University, -221005, Varanasi, India
| | - Umesh Kumar
- Laboratory of Ecotoxicology, Department of Botany, Institute of Science, Banaras Hindu University, -221005, Varanasi, India
| | - Rajesh Kumar Sharma
- Laboratory of Ecotoxicology, Department of Botany, Institute of Science, Banaras Hindu University, -221005, Varanasi, India.
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6
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Świątek B, Kraj W, Pietrzykowski M. Adaptation of Betula pendula Roth., Pinus sylvestris L., and Larix decidua Mill. to environmental stress caused by tailings waste highly contaminated by trace elements. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 196:52. [PMID: 38110766 PMCID: PMC10728222 DOI: 10.1007/s10661-023-12134-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/10/2023] [Indexed: 12/20/2023]
Abstract
The seedlings of some tree species can successfully develop in areas polluted by heavy metals. Research on such species is important in order to explore the possibility of introducing tree species for the permanent biological stabilization and reclamation of post-flotation tailings, especially after the final recycling of trace metals, but where concentrations remain much higher than in natural soils. To better understand the adaptation and reaction of Betula pendula Roth., Pinus sylvestris L., and Larix decidua Mill. seedlings to heavy metals pollution caused by tailings waste highly contaminated by trace elements: 1) the relationships between the concentration of heavy metals in the soil substrate, the efficiency of heavy metal ions accumulation in plant organs, and the biometric parameters of the seedlings; and 2) the threshold content of heavy metals in the roots above which the plant physiological response is triggered was determined. We assume that there are certain limit concentrations of heavy metals in the soil and fine roots, which depend on the tree species and beyond which the plant responds strongly to stressThe obtained results showed that Betula is a suitable species for the phytostabilization of post-flotation tailings due to its rapid growth rate and production of root biomass. The accumulation of metals in Betula roots was found to be much greater than in Pinus and Larix. Despite the high concentrations of heavy metals in the prepared substrates, there was only a slight transfer of these elements to the aboveground parts of the plant. At high soil concentrations, the heavy metals adversely affected the cellular and physiological processes of plants. In plants growing in such conditions, the activity of the antioxidant system depended both on the species and organ of the plant, as well as on the type and metal concentration.
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Affiliation(s)
- Bartłomiej Świątek
- Department of Ecological Engineering and Forest Hydrology, Faculty of Forestry, University of Agriculture in Kraków, Al. 29 Listopada 46, 31-425, Krakow, Poland.
| | - Wojciech Kraj
- Department of Forest Ecosystem Protection, Faculty of Forestry, University of Agriculture in Kraków, Al. 29 Listopada 46, 31-425, Krakow, Poland
| | - Marcin Pietrzykowski
- Department of Ecological Engineering and Forest Hydrology, Faculty of Forestry, University of Agriculture in Kraków, Al. 29 Listopada 46, 31-425, Krakow, Poland
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7
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Raina R, Sharma P, Batish DR, Kohli RK, Singh HP. Comparative assessment of two biodegradable chelants, S,S-ethylenediamine disuccinic acid and nitrilotriacetic acid, in facilitating Cd remediation by lesser swine cress (Coronopus didymus, Brassicaceae). ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1526. [PMID: 37996714 DOI: 10.1007/s10661-023-12073-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 10/30/2023] [Indexed: 11/25/2023]
Abstract
Chemically assisted phytoremediation is suggested as an effective approach to amplify the metal-remediating potential of hyperaccumulators. The current study assessed the efficiency of two biodegradable chelants (S,S-ethylenediamine disuccinic acid, EDDS; nitrilotriacetic acid, NTA) in enhancing the remediation of Cd by Coronopus didymus (Brassicaceae). C. didymus growing in Cd-contaminated soil (35-175 mg kg-1 soil) showed increased growth and biomass due to the hormesis effect, and chelant supplementation further increased growth, biomass, and Cd accumulation. A significant interaction with chelants and different Cd concentrations was observed, except for Cd content in roots and Cd content in leaves, which exhibited a non-significant interaction with chelant addition. The effect of the NTA amendment on the root dry biomass and shoot dry biomass was more pronounced than EDDS at all the Cd treatments. Upon addition of EDDS and NTA, bio-concentration factor values were enhanced by ~184-205 and ~ 199-208, respectively. The tolerance index of root and shoot increased over the control upon the addition of chelants, with NTA being better than EDDS. With chelant supplementation, bio-accumulation coefficient values were in the order Cd35 + NTA (~163%) > Cd105 + NTA (~137%) > Cd35 + EDDS (~89%) > Cd175 + NTA (~85%) > Cd105 + EDDS (~62%) > Cd175 + EDDS (~40%). The translocation factor correlated positively (r ≥ 0.8) with tolerance index and Cd accumulation in different plant parts. The study demonstrated that chelant supplementation enhanced Cd-remediation efficiency in C. didymus as depicted by improved plant growth and metal accumulation, and NTA was more effective than EDDS in reclaiming Cd.
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Affiliation(s)
- Riya Raina
- Department of Environment Studies, Panjab University, Chandigarh, 160 014, India
| | - Padma Sharma
- Department of Environment Studies, Panjab University, Chandigarh, 160 014, India
| | - Daizy R Batish
- Department of Botany, Panjab University, Chandigarh, 160 014, India
| | - Ravinder K Kohli
- Amity University, Sector 82A, IT City, International Airport Road, Mohali, 140 306, India
| | - Harminder P Singh
- Department of Environment Studies, Panjab University, Chandigarh, 160 014, India.
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Wang S, Wang L, Zhang M, Li W, Xie Z, Huang W. Blue Light Enhances Cadmium Tolerance of the Aquatic Macrophyte Potamogeton crispus. PLANTS (BASEL, SWITZERLAND) 2023; 12:2667. [PMID: 37514281 PMCID: PMC10383238 DOI: 10.3390/plants12142667] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
Cadmium (Cd) is highly toxic and widely distributed in aquatic systems due to its high solubility and mobility in water, which can severely inhibit the survival of aquatic macrophytes. The phytotoxicity of Cd depends on environmental factors; however, it remains unclear whether and how light quality affects its toxicity on aquatic macrophytes. In this study, we investigated the effects of Cd on aquatic macrophytes Potamogeton crispus under different light qualities (white, blue, and red light). We evaluated morphological and photo-physiological traits, as well as the cellular antioxidant defense system. Our findings indicate that P. crispus under Cd stress showed notable damage in leaf morphology, decreased photosynthetic efficiency, inhibited HCO3- uptake, and reduced antioxidant enzyme activities, as well as oxidative damage indicated by MDA accumulation and superoxide (O2-) overproduction. However, compared with white or red light under Cd stress, blue light reduced structural damage and oxidative stress caused by Cd while increasing pigment synthesis and photosynthetic efficiency, as well as increasing ascorbate peroxidase (APX) activity. In conclusion, the changes induced by blue light in P. crispus's photosynthesis and antioxidant system strengthen its tolerance to Cd. Further research on signal transmission in relation to light quality in Cd-exposed aquatic plants is still needed.
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Affiliation(s)
- Shanwei Wang
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Liyuan Wang
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Miao Zhang
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Wei Li
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
- School of Ecology and Environment, Tibet University, Lhasa 850000, China
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Zuoming Xie
- School of Environmental Studies, China University of Geosciences, Wuhan 430074, China
| | - Wenmin Huang
- Aquatic Plant Research Center, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
- Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
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Jia Y, Yin X, Zhao J, Pan Y, Jiang B, Liu Q, Li Y, Li Z. Effects of 24-Epibrassinolide, melatonin and their combined effect on cadmium tolerance in Primula forbesii Franch. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 262:115217. [PMID: 37406607 DOI: 10.1016/j.ecoenv.2023.115217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 06/13/2023] [Accepted: 06/29/2023] [Indexed: 07/07/2023]
Abstract
This study aimed to investigate the interaction between 24-Epibrassinolide (EBR) and melatonin (MT) and their effects on cadmium (Cd)-stressed Primula forbesii Franch. P. forbesii seedlings were hydroponically acclimatized at 6-7 weeks, then treated with Cd (200 μmol L-1), 24-EBR (0.1 μmol L-1), and MT (100 μmol L-1) after two weeks. Cd stress significantly reduced crown width, shoot, root length, shoot fresh weight, and fresh and dry root weights. Herein, 24-EBR, MT, and 24-EBR+MT treatments attenuated the growth inhibition caused by Cd stress and improved the morphology, growth indexes, and ornamental characteristics of P. forbesii under Cd stress. 24-EBR had the best effect by effectively alleviating Cd stress and promoting plant growth and development. 24-EBR significantly increased all growth parameters compared to Cd treatment. In addition, 24-EBR significantly improved the gas exchange parameters, activities of antioxidant enzymes, and the cycle efficiency of AsA-GSH. Furthermore, 24-EBR increased the activities of ascorbate peroxidase (APX), glutathione reductase (GR), dehydroascorbate reductase (DHAR), and monodehydroascorbate reductase (MDHAR) by 127.29%, 61.31%, 61.22%, and 51.04%, respectively, compared with the Cd treatment. Therefore, 24-EBR removed the reactive oxygen species produced by stress, thus protecting plants against stress damage. These results indicate that 24-EBR can effectively enhance the tolerance of P. forbesii to Cd stress.
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Affiliation(s)
- Yin Jia
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China.
| | - Xiancai Yin
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
| | - Jian Zhao
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yuanzhi Pan
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
| | - Beibei Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
| | - Qinglin Liu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
| | - Yifeng Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
| | - Zhuolin Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China
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Jia Y, Yin X, Zhao J, Pan Y, Jiang B, Liu Q, Li Y. Differential physiological responses and tolerance to potentially toxic elements in Primula forbesii Franch. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:67200-67216. [PMID: 37106307 DOI: 10.1007/s11356-023-27259-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 04/23/2023] [Indexed: 05/25/2023]
Abstract
Environmental pollution caused by potentially toxic elements (PTEs) has become a global problem that endangers environmental sustainability due to industrial, agricultural, and urban pollution. Primula forbesii Franch. (a synonym of Primula filipes G. Watt.) is a biennial flower native to China with excellent stress resistance and ornamental value. In this study, we examined the phenotypic traits, growth indexes, and physiological properties of P. forbesii in response to five representative PTEs (Cd, Ni, Cr(III), Cu, and Zn) under hydroponic culture conditions. High concentrations of Zn and Cr had little effect on the growth and physiological properties of P. forbesii, indicating that the species has strong tolerance to Zn and Cr stress. Alternatively, high concentrations of Cd, Ni, and Cu seriously affected plant growth and development, resulting in leaf chlorosis and even death, and therefore may have a serious negative impact on the growth of P. forbesii. However, activity levels of some antioxidant enzymes and osmotic regulatory substances remained high, indicating that P. forbesii resisted PTE stress by regulating physiological and biochemical metabolism to a certain extent. Furthermore, principal component analysis and membership function were used to comprehensively evaluate P. forbesii resistance to PTEs. These analyses revealed that P. forbesii exhibits distinct sensitivities and physiological responses to different PTEs and suggested that the resistance to five PTEs in decreasing order is Zn > Cr > Cd > Cu > Ni. These results provide a theoretical basis for the future application of P. forbesii in environments with PTE pollution and may expand its practical utilization.
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Affiliation(s)
- Yin Jia
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Xiancai Yin
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jian Zhao
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanzhi Pan
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Beibei Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qinglin Liu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yifeng Li
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
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11
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He H, Zhang D, Gao J. Bioaccumulation and physiological changes in the fruiting body of Agaricus bisporus (Large) sing in response to cadmium. Sci Rep 2022; 12:20079. [PMID: 36418499 PMCID: PMC9684502 DOI: 10.1038/s41598-022-24561-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
The bioremediation of heavy metals contaminated soils with macrofungi is a new and promising approach; hence Agaricus bisporus (Large) sing has potentially shown accumulating ability to Cd contamination. This study focused on the tolerance response by A. bisporus to different contents of Cd in the closed cup and the flat stage of fruiting body development. The contents of Cd, soluble protein, sugar, low molecular weight organic acids (LMWOAs), and antioxidant activity were investigated. The bioaccumulation factor and transfer factor results revealed that Cd accumulated in the cap of A. bisporus more than that in the stipe with the highest content being 18.38 mg kg-1 dry weight at the closed cup stage under 414.28 mg kg-1 Cd stress. High Cd content stress increased soluble protein, proline, and malonaldehyde contents at both stages; while higher peroxidase, catalase, ascorbic acid peroxidase activities, and LMWOAs contents were only recorded at the closed cup stage. On the other hand, Superoxide dismutase activities and soluble sugar content showed a complex trend. Overall, these results have successfully established that A. bisporus could resort to modulating its metabolism to avoid the destructive effects of Cd stress and could successfully accumulate Cd in the soil, which is a promising prospect for the remediation of Cd-contaminated soils.
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Affiliation(s)
- Haiyan He
- grid.464376.40000 0004 1759 6007College of Geography and Resources Science, Neijiang Normal University, Neijiang, People’s Republic of China
| | - Dan Zhang
- grid.9227.e0000000119573309Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, People’s Republic of China
| | - Jianing Gao
- grid.9227.e0000000119573309Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, People’s Republic of China
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12
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Soubasakou G, Cavoura O, Damikouka I. Phytoremediation of Cadmium-Contaminated Soils: A Review of New Cadmium Hyperaccumulators and Factors Affecting their Efficiency. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2022; 109:783-787. [PMID: 36050577 DOI: 10.1007/s00128-022-03604-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 08/04/2022] [Indexed: 06/15/2023]
Abstract
A promising solution for the remediation of cadmium (Cd) contaminated soil involves the use of Cd hyperaccumulators to reduce levels of soil Cd. The suitability of various plant species to act as cadmium (Cd) hyperaccumulators was reviewed by considering bioconcentration factor (BCF), translocation factor (TF) and Cd concentration in shoots relative to soil parameters such as pH and organic matter content, and planting and growing parameters. High BCF and TF values (max 81 and 13.7 respectively) were observed in soils with low soil Cd concentration, soil organic matter (SOM) content (< 2%) and low soil pH, with biannual harvesting possible for some species. Certain species such as Youngia erythrocarpa and Gnaphalium affine were efficient as hyperaccumulators in soil with > 40% SOM content.
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Affiliation(s)
- Georgia Soubasakou
- Department of Public Health Policy, School of Public Health, University of West Attica, 196 Alexandras Avenue, 115 21, Athens, Greece.
| | - Olga Cavoura
- Department of Public Health Policy, School of Public Health, University of West Attica, 196 Alexandras Avenue, 115 21, Athens, Greece
| | - Ioanna Damikouka
- Department of Public Health Policy, School of Public Health, University of West Attica, 196 Alexandras Avenue, 115 21, Athens, Greece
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13
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Hakeem KR, Alharby HF, Pirzadah TB. Exogenously applied calcium regulates antioxidative system and reduces cadmium-uptake in Fagopyrum esculentum. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 180:17-26. [PMID: 35367929 DOI: 10.1016/j.plaphy.2022.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 06/14/2023]
Abstract
Calcium (Ca) being macronutrient plays a prominent role in signal transduction during various abiotic stresses. However, their involvements to alleviate heavy metal stress in plants remain evasive. In the present investigation, we found that application of exogenous Ca to Cd-stressed common buckwheat plants reversed the toxic effects of Cd by enhancing root and shoot length, biomass accumulation and reduced Cd-uptake as revealed by the translocation factor (<1), indicating more Cd is restrained in the roots. Moreover, present data also revealed that exogenous Ca significantly alleviated the Cd-induced oxidative damage by enhancing proline by 66.12% and 47.20% respectively in roots and shoots than control. The decline in the total chlorophyll content upon Ca application in Cd-treated plants was found less (38.96%) compared to buckwheat plants treated with Cd-stress alone (80.2%). APX and POD activities increased by 1.97 and 1.44 times in shoots, respectively, and increased by 2.81and 1.33 times in roots, respectively compared to the Cd-treated plants alone. The mineral content (Ca, K, Mg, Fe, P and S) that were suppressed in Cd-treated plants in both root and shoot were restored upon exogenous Ca application. Further, the correlation analysis showed significant positive correlation among proline and GSH synthesis in the Ca + Cd treatment. The correlations of Ca revealed to be positive with enhanced levels of APX and POD activity. Our data showed that exogenous application of Ca minimizes the Cd-toxicity and modulates the physiological and biochemical pathway in common buckwheat to withstand Cd-induced oxidative stress.
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Affiliation(s)
- Khalid Rehman Hakeem
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia; Princess Dr Najla Bint Saud Al- Saud Center for Excellence Research in Biotechnology, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
| | - Hesham F Alharby
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia; Princess Dr Najla Bint Saud Al- Saud Center for Excellence Research in Biotechnology, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Tanveer Bilal Pirzadah
- University Centre for Research and Development (UCRD), Chandigarh University, Punjab, India
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14
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Amjad M, Iqbal MM, Abbas G, Farooq ABU, Naeem MA, Imran M, Murtaza B, Nadeem M, Jacobsen SE. Assessment of cadmium and lead tolerance potential of quinoa (Chenopodium quinoa Willd) and its implications for phytoremediation and human health. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2022; 44:1487-1500. [PMID: 33528680 DOI: 10.1007/s10653-021-00826-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Soil contamination with Cd and Pb is a worldwide problem which not only degrades the environment but also poses a serious threat for human and animal health. Phytoremediation of these contaminated soils using halophytic plants like quinoa presents an opportunity to clean the soils and use them for crop production. The current experiment was performed to evaluate the Cd and Pb tolerance potential of quinoa and subsequently its implications for human health. Three weeks old quinoa seedlings were exposed to Cd (30, 60 and 90 mg kg-1) and Pb (50, 100 and 150 mg kg-1) levels along with a control. The results revealed that plant height decreased at highest levels of soil Cd and Pb. Shoot, root and seed dry weight decreased with increasing levels of soil Cd and Pb. Tissue Cd and Pb concentrations increased with increasing levels of Cd and Pb in soil, the highest Cd was found in roots while the lowest in seeds. The highest Pb concentration was found in shoots at low Pb level, while in roots at high level of Pb. Increasing levels of Cd and Pb stimulated the activities of measured antioxidant enzymes and decreased membrane stability index. The health risk assessments of Cd and Pb revealed that hazard quotient was < 1 for both the metals. However, the results of total hazard quotient showed that value was < 1 for Pb and 1.19 for Cd showing potential carcinogenicity. This study demonstrates that quinoa has good phytoremediation potential for Cd and Pb however, the risk of Cd toxicity is challenging for human health.
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Affiliation(s)
- Muhammad Amjad
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan.
| | - Muhammad Mohsin Iqbal
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Ghulam Abbas
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Abu Bakar Umer Farooq
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Muhammad Asif Naeem
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Muhammad Imran
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Behzad Murtaza
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Muhammad Nadeem
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehar, Pakistan
| | - Sven-Erik Jacobsen
- Department of Plant and Environmental Sciences, University of Copenhagen, Quinoa Quality, Teglvaerksvej 10, 4420, Regstrup, Denmark
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15
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Wen J, Li Z, Jin C, Chen J, Cai C. Fe oxides and fulvic acids together promoted the migration of Cd(II) to the root surface of Phragmites australis. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127998. [PMID: 34986567 DOI: 10.1016/j.jhazmat.2021.127998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/22/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
Dissolved organic matter (DOM) or iron/manganese (hydro)oxides were important factors in the migration of Cd in sediments of wetlands. DOM and Fe oxides simultaneously affect the longitudinal and transverse migration of Cd in wetlands sediments of plants was still unclear. In this study, a 14-day rhizobox experiment was conducted and the result showed that the rhizosphere effect of Cd migration was only limited to the upper layer of sediments (- 2 to - 4 cm). Fe with fulvic acid (FA) simultaneously existed can precipitate Cd(II) from supernatant to sediments downward. Fe oxides at sediment concentration could effectively prevent Cd(II) from migrating to root surface (0.21 vs 0.02 at%). While Fe oxides with FA together at sediment concentration could effectively promoted the migration of Cd(II) to root surface (0.07 vs 0.08 at%). The formation of organo-metallic complexes of Fe in the presence of FA profoundly proved this finding (increased by ~33.0%). And the polysaccharides and aromatics in organic matter were the chief functional groups participating in the incorporation of Cd and Fe oxides. The findings reveal the migration rules of Cd(II) in sediments by FA and Fe oxides and give an insight into the mechanisms of Cd(II) migration to the root surface around wetland plants.
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Affiliation(s)
- Jiajun Wen
- College of Geographic Science, Hunan Normal University, Changsha 410081, PR China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zhongwu Li
- College of Geographic Science, Hunan Normal University, Changsha 410081, PR China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Changsheng Jin
- College of Geographic Science, Hunan Normal University, Changsha 410081, PR China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Jia Chen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Changqing Cai
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
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16
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de Oliveira JPV, Pereira MP, Duarte VP, Corrêa FF, de Castro EM, Pereira FJ. Root anatomy, growth, and development of Typha domingensis Pers. (Typhaceae) and their relationship with cadmium absorption, accumulation, and tolerance. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:19878-19889. [PMID: 35080729 DOI: 10.1007/s11356-022-18842-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Typha domingensis Pers. is a plant that grows in marshy environments, where cadmium (Cd) accumulates. The root is the first organ that comes into contact with the metal. The aim of this study was to evaluate the effect of Cd on the roots of T. domingensis. The experiment was conducted in a greenhouse using different Cd concentrations: (1) 0 µM (control), (2) 10 µM, and (3) 50 µM, with 10 replicates for 90 days. The plants were placed in plastic containers containing 5 L of nutrient solution modified with the different Cd concentrations. At the end of the experiment, the roots were measured, sampled, fixed, and subjected to usual plant microtechniques. The slides were observed and photographed under light microscopy and analyzed in ImageJ software. To measure Cd absorption, atomic-absorption spectrometry was used. The data were subjected to analysis of variance and comparison of means by the Scott-Knott test at P < 0.05. When exposed to 50 µM of Cd, the roots accumulated 99.35% of the Cd. At this concentration, there was a reduction in the exodermis but there was an increase in the diameter of the cortical cells and in the proportion of aerenchyma in the cortex. There was an increase in the root cap, which guaranteed the protection of the primary meristems. Therefore, T. domingensis adjusts its root anatomy improving the Cd tolerance and shows potential for phytoremediation purposes.
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Affiliation(s)
| | - Márcio Paulo Pereira
- Universidade Federal de Lavras, Campus Universitário, zip code: 37200-900, Lavras, MG, Brazil
| | - Vinícius Politi Duarte
- Universidade Federal de Lavras, Campus Universitário, zip code: 37200-900, Lavras, MG, Brazil
| | - Felipe Fogaroli Corrêa
- Universidade Federal de Lavras, Campus Universitário, zip code: 37200-900, Lavras, MG, Brazil
| | | | - Fabricio José Pereira
- Instituto de Ciências da Natureza (ICN), Universidade Federal de Alfenas, Rua Gabriel Monteiro da Silva, Rua Gabriel Monteiro da Silva 700, Alfenas, MG, Brazil.
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17
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Teng Y, Guan W, Yu A, Li Z, Wang Z, Yu H, Zou L. Exogenous melatonin improves cadmium tolerance in Solanum nigrum L. without affecting its remediation potential. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2022; 24:1284-1291. [PMID: 35016578 DOI: 10.1080/15226514.2021.2025204] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Although Solanum nigrum L. is a phytoremediator for different metals, its growth and physiology are still influenced by toxic levels of cadmium (Cd). Thus, the development of eco-friendly strategies to enhance its tolerance, maintaining remediation potential is of special interest. The present work aimed to evaluate the effects of exogenous application of melatonin (MT) in the physiological and biochemical responses of S. nigrum and remediation potential exposed to Cd. After 30 days of exposure, the results revealed that Cd-mediated inhibitory effects on biomass and photosynthetic pigment synthesis were efficiently mitigated upon application of melatonin, without affecting Cd accumulation. Higher levels of Cd were found in roots, regardless of the pretreatment with the melatonin. Foliar application of melatonin, however, induced distinctive effects, lowering malondialdehyde (MDA), relative electrical conductivity (REL), and proline levels in shoots. These changes contributed to improvements in the water status, photosynthetic pigment synthesis, and biomass production of S. nigrum under Cd stresses. Overall, our results indicate a protective effect of melatonin on S. nigrum response to excess Cd, contributing to a better tolerance and growth rate, without disturbing its phytoremediation potential.Novelty statementAlthough Solanum nigrum L. is a phytoremediator for different metals, its growth and physiology are still influenced by toxic levels of cadmium. This study evaluated the potential of melatonin to boost S. nigrum defence against Cd toward a better growth rate and remediation potential.
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Affiliation(s)
- Yue Teng
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou, China
| | - Wenjie Guan
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
| | - An Yu
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
| | - Zhishuai Li
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
| | - Zhenjun Wang
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
| | - Hongyan Yu
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
| | - Luyi Zou
- Jiangsu Key Laboratory of Anaerobic Biotechnology, School of Environmental and Civil Engineering, Jiangnan University, Wuxi, China
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18
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Chaudhry S, Sidhu GPS. Climate change regulated abiotic stress mechanisms in plants: a comprehensive review. PLANT CELL REPORTS 2022; 41:1-31. [PMID: 34351488 DOI: 10.1007/s00299-021-02759-5] [Citation(s) in RCA: 104] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 07/18/2021] [Indexed: 05/20/2023]
Abstract
Global climate change is identified as a major threat to survival of natural ecosystems. Climate change is a dynamic, multifaceted system of alterations in environmental conditions that affect abiotic and biotic components of the world. It results in alteration in environmental conditions such as heat waves, intensity of rainfall, CO2 concentration and temperature that lead to rise in new pests, weeds and pathogens. Climate change is one of the major constraints limiting plant growth and development worldwide. It impairs growth, disturbs photosynthesis, and reduces physiological responses in plants. The variations in global climate have gained the attention of researchers worldwide, as these changes negatively affect the agriculture by reducing crop productivity and food security. With this background, this review focuses on the effects of elevated atmospheric CO2 concentration, temperature, drought and salinity on the morphology, physiology and biochemistry of plants. Furthermore, this paper outlines an overview on the reactive oxygen species (ROS) production and their impact on the biochemical and molecular status of plants with increased climatic variations. Also additionally, different tolerance strategies adopted by plants to combat environmental adversities have been discussed.
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Affiliation(s)
- Smita Chaudhry
- Institute of Environmental Studies, Kurukshetra University, Kurukshetra, Haryana, 136119, India
- Centre for Applied Biology in Environment Sciences, Kurukshetra University, Kurukshetra, Haryana, 136119, India
| | - Gagan Preet Singh Sidhu
- Centre for Applied Biology in Environment Sciences, Kurukshetra University, Kurukshetra, Haryana, 136119, India.
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19
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Xiao Y, Dai MX, Zhang GQ, Yang ZX, He YM, Zhan FD. Effects of the Dark Septate Endophyte (DSE) Exophiala pisciphila on the Growth of Root Cell Wall Polysaccharides and the Cadmium Content of Zea mays L. under Cadmium Stress. J Fungi (Basel) 2021; 7:jof7121035. [PMID: 34947018 PMCID: PMC8708371 DOI: 10.3390/jof7121035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/27/2021] [Accepted: 11/30/2021] [Indexed: 02/06/2023] Open
Abstract
This paper aims to investigate the mechanism by which dark septate endophytes (DSEs) enhance cadmium (Cd) tolerance in there host plants. Maize (Zea mays L.) was inoculated with a DSE, Exophiala pisciphila, under Cd stress at different concentrations (0, 5, 10, and 20 mg·kg−1). The results show that, under 20 mg/kg Cd stress, DSE significantly increased maize biomass and plant height, indicating that DSE colonization can be utilized to increase the Cd tolerance of host plants. More Cd was retained in DSE-inoculated roots, especially that fixed in the root cell wall (RCW). The capability of DSE to induce a higher Cd holding capacity in the RCW is caused by modulation of the total sugar and uronic acid of DSE-colonized RCW, mainly the pectin and hemicellulose fractions. The fourier-transform spectroscopy analysis results show that carboxyl, hydroxyl, and acidic groups are involved in Cd retention in the DSE-inoculated RCW. The promotion of the growth of maize and improvement in its tolerance to Cd due to DSEs are related to restriction of the translocation of Cd from roots to shoots; resistance of Cd uptake Cd inside cells; and the increase in RCW-integrated Cd through modulating RCW polysaccharide components.
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20
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Lyu R, Gu B, Zhang T, Yang Z. Simultaneous removal of Cd (II), Ni (II), and Pb (II) from water by a submerged macrophyte pondweed (Potamogeton malaianus). WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:2637-2647. [PMID: 34331379 DOI: 10.1002/wer.1617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/17/2021] [Accepted: 07/22/2021] [Indexed: 06/13/2023]
Abstract
The current work investigated the potential of submerged macrophyte pondweed (Potamogeton malaianus) in treating cadmium, nickel, and lead-contaminated water through phytoremediation. The adsorption for the three metal ions occurred rapidly within 2 h and attained dynamic equilibrium in no more than 72 h. The removal efficiencies of Cd (II), Ni (II), and Pb (II) were high, passing 94% in both single- and multi-metal systems. The kinetic adsorption curves of Cd (II), Ni (II), and Pb (II) were fitted well by both pseudo-first-order and pseudo-second-order kinetics (R2 = 0.9875-0.9995). The equilibrium adsorption capacities of Cd (II), Ni (II), and Pb (II) for P. malaianus were 6.29-6.97 mg kg-1 . In plants, the higher concentration of each metal ions was accumulated in leaves (12.44-38.15 mg kg-1 ) than in roots (10.32-26.10 mg kg-1 ). The chlorophyll contents increased from 0.69 to 0.89-1.00 mg g-1 under the treatment of Cd (II), Ni (II), and Pb (II), whereas the chlorophyll a/b ratio was kept constant. There was no significant difference between single- and multi-metal systems. FT-IR spectra showed that COH and C═N might be involved in the adsorption of Cd (II), Ni (II), and Pb (II). This study demonstrated that P. malaianus could be a suitable submerged macrophyte for the simultaneous removal of Cd (II), Ni (II), and Pb (II) from water.
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Affiliation(s)
- Rongtao Lyu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, China
| | - Bowen Gu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, China
| | - Ting Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, China
| | - Zhaoguang Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan, China
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21
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Bali AS, Sidhu GPS. Arsenic acquisition, toxicity and tolerance in plants - From physiology to remediation: A review. CHEMOSPHERE 2021; 283:131050. [PMID: 34147983 DOI: 10.1016/j.chemosphere.2021.131050] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/18/2021] [Accepted: 05/26/2021] [Indexed: 05/25/2023]
Abstract
Globally, environmental contamination by potentially noxious metalloids like arsenic is becoming a critical concern to the living organisms. Arsenic is a non-essential metalloid for plants and can be acclimatised in plants to toxic levels. Arsenic acquisition by plants poses serious health risks in human due to its entry in the food chain. High arsenic regimes disturb plant water relations, promote the generation of reactive oxygen species (ROS) and induce oxidative outburst in plants. This review evidences a conceivable tie-up among arsenic levels, speciation, its availability, uptake, acquisition, transport, phytotoxicity and arsenic detoxification in plants. The role of different antioxidant enzymes to confer plant tolerance towards the enhanced arsenic distress has also been summed up. Additionally, the mechanisms involved in the modulation of different genes coupled with arsenic tolerance have been thoroughly discussed. This review is intended to present an overview to rationalise the contemporary progressions on the recent advances in phytoremediation approaches to overcome ecosystem contamination by arsenic.
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Affiliation(s)
| | - Gagan Preet Singh Sidhu
- Centre for Applied Biology in Environment Sciences, Kurukshetra University, Kurukshetra, 136119, India.
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22
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Gul I, Manzoor M, Hashim N, Shah GM, Waani SPT, Shahid M, Antoniadis V, Rinklebe J, Arshad M. Challenges in microbially and chelate-assisted phytoextraction of cadmium and lead - A review. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117667. [PMID: 34426392 DOI: 10.1016/j.envpol.2021.117667] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/10/2021] [Accepted: 06/26/2021] [Indexed: 05/28/2023]
Abstract
Cadmium (Cd) and lead (Pb) are ubiquitously present in surface soils, due to anthropogenic activities, causing threat to ecological and human health because of their carcinogenic nature. They accumulate in large quantities in the environment and affect negatively soil microbiota, plants, animals, and humans. For the cleanup of Cd/Pb polluted soils, different plant species have been studied. Many plants have shown the potential to hyperaccumulate Cd/Pb in their above-ground tissues. These plants decrease soil pH by root exudation or by releasing H+ ions, and this, in turn, increases the bioavailability of Cd/Pb for plant uptake. Different environmental processes related to soil organic matter, microorganisms, pH, genetic modifications, and various soil-borne chelating agents affect the potential of phytoremediation technology. Review papers trying to identify a single factor influencing the phytoremediation of heavy metals are available in the literature. However, an integrated approach dealing with different factors involved in the remediation of both metals is scarcely discussed. The main focus of this review is to discuss the phytoextraction technique for Cd/Pb removal from contaminated sites along with detoxification mechanisms. Further, the challenges in the Cd/Pb phytoextraction and different options available to cope with these challenges are also discussed. The update on the relevant findings on the use of microorganisms and amendments in enhancing the Cd/Pb phytoextraction is also provided. Finally, the areas to be explored in future research for the removal of Cd/Pb by integrated strategies have been discussed.
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Affiliation(s)
- Iram Gul
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan; Department of Earth and Environmental Sciences, Hazara University, Mansehra, Pakistan
| | - Maria Manzoor
- Department of Environmental Sciences, University of Okara, Okara, Pakistan
| | - Nosheen Hashim
- Department of Environmental Sciences, University of Peshawar, Peshawar, Pakistan
| | - Ghulam Mujtaba Shah
- Department of Earth and Environmental Sciences, Hazara University, Mansehra, Pakistan
| | - Sayyada Phziya Tariq Waani
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan
| | - Vasileios Antoniadis
- Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Greece
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water and Waste Management, Laboratory of Soil and Groundwater Management, Pauluskirchstraße 7, 42285, Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, 98 Gunja-Dong, Guangjin-Gu, Seoul, Republic of Korea
| | - Muhammad Arshad
- Institute of Environmental Sciences and Engineering, School of Civil and Environmental Engineering, National University of Sciences and Technology (NUST), Islamabad, Pakistan.
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Bamagoos AA, Mallhi ZI, El-Esawi MA, Rizwan M, Ahmad A, Hussain A, Alharby HF, Alharbi BM, Ali S. Alleviating lead-induced phytotoxicity and enhancing the phytoremediation of castor bean ( Ricinus communis L.) by glutathione application: new insights into the mechanisms regulating antioxidants, gas exchange and lead uptake. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:933-944. [PMID: 34634959 DOI: 10.1080/15226514.2021.1985959] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Heavy metals pollution represents a serious issue for cultivable lands and ultimately threatens the worldwide food security. Lead (Pb) is a menacing metal which induces toxicity in plants and humans. Lead toxicity reduces the photosynthesis in plants, resulting in the reduction of plant growth and biomass. The excessive concentration of Pb in soil accumulates in plants body and enters into food chain, resulting in health hazards in humans. The phytoremediation is eco-friendly and cost-efficient technique to clean up the polluted soils. However, to the best of our Knowledge, there are very few reports addressing the enhancement of the phytoremediation potential of castor bean plants. Therefore, the present study aimed to investigate the potential role of glutathione (GSH), as a promising plant growth regulator, in enhancing the lead stress tolerance and phytoremediation potential of castor bean plants grown under lead stress conditions. The results indicated that Pb stress reduced the growth, biomass, chlorophyll pigments and gas exchange attributes of castor bean plants, causing oxidative damage in plants. Pb stress induced the oxidative stress markers and activities of antioxidant enzymes. On the other hand, the application of GSH reduced oxidative stress markers, but enhanced the growth, biomass, photosynthetic pigments, gas exchange attributes, Pb accumulation and antioxidant enzymes activities of lead-stressed castor bean plants. Both Pb uptake and Pb accumulation were increased by increasing concentrations of Pb in a dose-additive manner. However, at high dose of exogenous GSH (25 mg L-1) further enhancements were recorded in the Pb uptake in shoot by 48% and in root by 46%; Pb accumulation was further enhanced in shoot by 98% and in root by 101% in comparison with the respective control where no GSH was applied. Taken together, the findings revealed the promising role of GSH in enhancing the lead stress tolerance and phytoremediation potential of castor bean (Ricinus communis) plants cultivated in Pb-polluted soils through regulating leaf gas exchange, antioxidants machinery, and metal uptake.
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Affiliation(s)
- Atif A Bamagoos
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Zahid Imran Mallhi
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
| | | | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
| | - Awais Ahmad
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Afzal Hussain
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
- Department of Environmental Sciences, The University of Lahore, Lahore, Pakistan
| | - Hesham F Alharby
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Basmah M Alharbi
- Biology department, Faculty of Science, University of Tabuk, Tabuk, Saudi Arabia
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
- Department of Biological Sciences and Technology, China Medical University, Taichung, Taiwan
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24
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Menhas S, Yang X, Hayat K, Niazi NK, Hayat S, Aftab T, Hui N, Wang J, Chen X, Zhou P. Targeting Cd coping mechanisms for stress tolerance in Brassica napus under spiked-substrate system: from physiology to remediation perspective. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 24:622-636. [PMID: 34388060 DOI: 10.1080/15226514.2021.1960479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Cadmium (Cd) is a prevalent, non-essential, carcinogenic, and hazardous heavy metal that reduces plant productivity and capacity of arable land area around the globe. In the present substrate-based pot study, seedlings of Brassica napus 180015 were grown equidistantly in the spiked-substrate medium for 60 days under increasing concentrations of Cd (0, 10, 20, 30, 40, 50 mg kg-1). Following harvest, the morpho-physio-biochemical, antioxidative, and Cd-induced tolerance responses were evaluated in B. napus under an increasing Cd stress regime. Additionally, these parameters were also investigated to select the plant's threshold tolerance limit for Cd under the spiked-substrate system. B. napus showed dynamic behavior regarding morpho-physio-biochemical attributes, including agronomic features, biomass, photosynthetic pigments, relative water content under increased Cd toxicity. Cd stress-induced hydrogen peroxide (H2O2) production with high MDA contents and passive EL, followed by the orchestration of both enzymatic (SOD, POD, APX, CAT, and GR) and non-enzymatic antioxidants (flavonoids, TPC, TPA, proline, and total soluble protein) up to a certain limit. In addition, Cd-induced stress upregulated transcriptional levels of antioxidative enzyme SOD, POD, APX, GR, and MT encoded genes in B. napus. The increasing trend of Cd accumulation in different tissues at the highest Cd concentration was as follows: root > leaf > stem. In spiked substrate system, B. napus demonstrated improved metal extractability performance and a high potential for phyto-management of low to moderate Cd contamination, implying that this study could be used for integrative breeding programs and decontaminating heavy metals in real contaminated scenarios.Novelty statementThis study provides an insight into Cd-coping mechanisms of oilseed rape involved in alleviating toxicity and simultaneous phyto-management of increasing Cd concentration under spiked substrate system. The current study is the first scientific evidence of using a Cd-spiked soilless substrate medium. The present study will further strengthen our understanding of Cd-instigated positive responses in B. napus. Furthermore, it will provide a useful basis for integrative breeding programs and decontaminating heavy metals in real contaminated scenarios.
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Affiliation(s)
- Saiqa Menhas
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, P.R. China
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Xijia Yang
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, P.R. China
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Kashif Hayat
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, P.R. China
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Sikandar Hayat
- College of Landscape Architecture, Nanjing Forestry University, Nanjing, P.R. China
| | - Tariq Aftab
- Department of Botany, Plant Physiology Section, Aligarh Muslim University, Aligarh, India
| | - Nan Hui
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, P.R. China
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Juncai Wang
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, P.R. China
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Xunfeng Chen
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, P.R. China
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Pei Zhou
- Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Affairs, P.R. China
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, P.R. China
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25
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Zhang H, Ren W, Zheng Y, Li Y, Zhu M, Tang M. Arbuscular Mycorrhizal Fungi Increase Pb Uptake of Colonized and Non-Colonized Medicago truncatula Root and Deliver Extra Pb to Colonized Root Segment. Microorganisms 2021; 9:microorganisms9061203. [PMID: 34199397 PMCID: PMC8229133 DOI: 10.3390/microorganisms9061203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 05/30/2021] [Accepted: 05/31/2021] [Indexed: 11/16/2022] Open
Abstract
Arbuscular mycorrhizal (AM) fungi establish symbiosis and improve the lead (Pb) tolerance of host plants. The AM plants accumulate more Pb in roots than their non-mycorrhizal counterparts. However, the direct and long-term impact of AM fungi on plant Pb uptake has been rarely reported. In this study, AM fungus (Rhizophagus irregularis) colonized and non-colonized roots of Medicago truncatula were separated by a split-root system, and their differences in responding to Pb application were compared. The shoot biomass accumulation and transpiration were increased after R. irregularis inoculation, whereas the biomass of both colonized and non-colonized roots was decreased. Lead application in the non-colonized root compartment increased the R. irregularis colonization rate and up-regulated the relative expressions of MtPT4 and MtBCP1 in the colonized root compartments. Rhizophagus irregularis inoculation increased Pb uptake in both colonized and non-colonized roots, and R. irregularis transferred Pb to the colonized root segment. The Pb transferred through the colonized root segment had low mobility and might be sequestrated and compartmented in the root by R. irregularis. The Pb uptake of roots might follow water flow, which is facilitated by MtPIP2. The quantification of Pb transfer via the mycorrhizal pathway and the involvement of MtPIP2 deserve further study.
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Affiliation(s)
- Haoqiang Zhang
- College of Forestry, Northwest A&F University, Yangling 712100, China; (H.Z.); (W.R.); (Y.Z.); (Y.L.); (M.Z.)
| | - Wei Ren
- College of Forestry, Northwest A&F University, Yangling 712100, China; (H.Z.); (W.R.); (Y.Z.); (Y.L.); (M.Z.)
| | - Yaru Zheng
- College of Forestry, Northwest A&F University, Yangling 712100, China; (H.Z.); (W.R.); (Y.Z.); (Y.L.); (M.Z.)
| | - Yanpeng Li
- College of Forestry, Northwest A&F University, Yangling 712100, China; (H.Z.); (W.R.); (Y.Z.); (Y.L.); (M.Z.)
| | - Manzhe Zhu
- College of Forestry, Northwest A&F University, Yangling 712100, China; (H.Z.); (W.R.); (Y.Z.); (Y.L.); (M.Z.)
| | - Ming Tang
- College of Forestry, Northwest A&F University, Yangling 712100, China; (H.Z.); (W.R.); (Y.Z.); (Y.L.); (M.Z.)
- State Key Laboratory of Conservation and Utilization of Subtropical Agro-Bioresources, Lingnan Guangdong Laboratory of Modern Agriculture, Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
- Correspondence: ; Tel.: +86-137-092-291-52
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26
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Li Y, Sun M, He W, Wang H, Pan H, Yang Q, Lou Y, Zhuge Y. Effect of phosphorus supplementation on growth, nutrient uptake, physiological responses, and cadmium absorption by tall fescue (Festuca arundinacea Schreb.) exposed to cadmium. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 213:112021. [PMID: 33582412 DOI: 10.1016/j.ecoenv.2021.112021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/04/2021] [Accepted: 01/31/2021] [Indexed: 06/12/2023]
Abstract
Cadmium is a common heavy metal pollutant. In some plants, its absorption is inhibited by exogenous phosphorus. Here, the effect of P supplementation on the growth of tall fescue exposed to Cd was evaluated in a hydroponic culture experiment. Plants were exposed to five concentrations of P (0, 0.25, 0.5, 0.75, and 1.0 mmol L-1) and three concentrations of Cd (50, 100, and 150 mg L-1), and plant growth, Cd content, absorption, physiological characteristics, and nutrient accumulation were investigated. P supplementation significantly reduced the Cd content, Cd translocation factor (TF), Cd removal efficiency, plant P absorption, chlorophyll content, glutathione levels, glutathione reductase levels, and superoxide dismutase (SOD) activity in tall fescue under Cd stress (P < 0.05). Moreover, it increased the vertical growth rate and biomass of tall fescue. At a constant P concentration, the biomass and vertical growth rate significantly decreased with an increasing Cd concentration, and the shoot Cd content, SOD activity, and TF significantly increased (P < 0.05). High P supplementation (0.75 and 1.0 mmol L-1) ameliorated the damage caused by 150 mg L-1 Cd stress, and the biomass, vertical shoot and vertical root growth rates were increased by 72.06-82.06%, 250.00-316.67%, 300.00-312.00%, respectively. In the plants subjected to 50 mg L-1 Cd stress, 0.5 mmol L-1 P supplementation enhanced biomass, vertical shoot and vertical root growth rates by 29.99%, 20.41%, and 21.43%, respectively, and reduced the Cd content in shoots (45.85%) and roots (9.71%). Except for the total potassium content and catalase activity, different concentrations of Cd negatively affected all parameters tested. Such negative effects were limited by P supplementation. Optimizing the nutrient composition and concentrations could minimize the potential negative impacts of Cd on plant growth.
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Affiliation(s)
- Yaping Li
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, No. 61 Daizong Street, Tai'an, Shandong 271018, PR China.
| | - Mingjie Sun
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, No. 61 Daizong Street, Tai'an, Shandong 271018, PR China.
| | - Wei He
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, No. 61 Daizong Street, Tai'an, Shandong 271018, PR China.
| | - Hui Wang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, No. 61 Daizong Street, Tai'an, Shandong 271018, PR China.
| | - Hong Pan
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, No. 61 Daizong Street, Tai'an, Shandong 271018, PR China.
| | - Quangang Yang
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, No. 61 Daizong Street, Tai'an, Shandong 271018, PR China.
| | - Yanhong Lou
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, No. 61 Daizong Street, Tai'an, Shandong 271018, PR China.
| | - Yuping Zhuge
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, No. 61 Daizong Street, Tai'an, Shandong 271018, PR China.
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27
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Chen Y, Wu H, Sun P, Liu J, Qiao S, Zhang D, Zhang Z. Remediation of Chromium-Contaminated Soil Based on Bacillus cereus WHX-1 Immobilized on Biochar: Cr(VI) Transformation and Functional Microbial Enrichment. Front Microbiol 2021; 12:641913. [PMID: 33841363 PMCID: PMC8027096 DOI: 10.3389/fmicb.2021.641913] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/10/2021] [Indexed: 11/14/2022] Open
Abstract
Microorganisms are applied to remediate chromium (Cr)-contaminated soil extensively. Nevertheless, the microbial loss and growth inhibition in the soil environment restrain the application of this technology. In this study, a Cr(VI)-reducing strain named Bacillus cereus WHX-1 was screened, and the microbial aggregates system was established via immobilizing the strain on Enteromorpha prolifera biochar to enhance the Cr(VI)-reducing activity of this strain. The mechanism of the system on Cr(VI) transformation in Cr-contaminated soil was illuminated. Pot experiments indicated that the microbial aggregates system improved the physicochemical characteristics of Cr-contaminated soil obviously by increasing organic carbon content and cation exchange capacity, as well as decreasing redox potential and bulk density of soil. Moreover, 94.22% of Cr(VI) was transformed into Cr(III) in the pot, and the content of residue fraction Cr increased by 63.38% compared with control check (CK). Correspondingly, the physiological property of Ryegrass planted on the Cr-contaminated soil was improved markedly and the main Cr(VI)-reducing microbes, Bacillus spp., were enriched in the soil with a relative abundance of 28.43% in the microbial aggregates system. Considering more active sites of biochar for microbial aggregation, it was inferred that B. cereus WHX-1 could be immobilized by E. prolifera biochar, and more Cr(VI) was transformed into residue fraction. Cr stress was decreased and the growth of plants was enhanced. This study would provide a new perspective for Cr-contaminated soil remediation.
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Affiliation(s)
- Youyuan Chen
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, China.,Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, China.,Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, Ocean University of China, Qingdao, China
| | - Haixia Wu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, China
| | - Ping Sun
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, China
| | - Jiaxin Liu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, China
| | - Shixuan Qiao
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, China
| | - Dakuan Zhang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, China
| | - Zhiming Zhang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao, China.,Key Lab of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, China.,Shandong Provincial Key Laboratory of Marine Environment and Geological Engineering, Ocean University of China, Qingdao, China
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28
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Li X, Zhang M, Li Y, Yu X, Nie J. Effect of neonicotinoid dinotefuran on root exudates of Brassica rapa var. chinensis. CHEMOSPHERE 2021; 266:129020. [PMID: 33248730 DOI: 10.1016/j.chemosphere.2020.129020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/08/2020] [Accepted: 11/14/2020] [Indexed: 06/12/2023]
Abstract
Root exudates are released by plant roots and are important carrier substances for material exchange and information transmission among plants and the rhizosphere. In the present study, the effect of dinotefuran on root exudates of Chinese cabbage (Brassica rapa var. chinensis) was investigated. The physiological activities revealed that dinotefuran uptake caused oxidative stress in vegetable tissues even at low dinotefuran exposure levels. The metabolic profile of plant root exudates acquired by LC-QTOF/MS was clearly changed by dinotefuran, where the numbers of both up- and down-regulated MS peaks increased with increasing dinotefuran concentration. Under dinotefuran stress, some osmotic adjustment substances (proline and betaine) and defence-related metabolites (spermidine, phenylalanine and some phenolic acids) were significantly upregulated, which may help plants adapt to adverse environmental conditions. Specifically, the contents of some phenylalanine-derived secondary metabolites increased with increasing dinotefuran concentration, which may increase the external detoxification ability of plants. Moreover, respiration metabolism was significantly affected, where some intermediates in the TCA cycle (succinic acid and malic acid) were upregulated with low-level dinotefuran exposure; however, anaerobic respiration products (lactic acid and 3-phenyllactic acid) were accumulated at high exposure levels. In addition, the release of glucosinolates was significantly inhibited in both dinotefuran treatment groups.
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Affiliation(s)
- Xiaoqing Li
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China
| | - Mingxia Zhang
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China; Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China
| | - Yong Li
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing, 210014, China; School of Food and Biological Engineering, Jiangsu University, 301 Zhenjiang City University Road, Zhenjiang, 212001, China.
| | - Xiangyang Yu
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, 50 Zhongling Street, Nanjing, 210014, China; Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, 50 Zhongling Street, Nanjing, 210014, China
| | - Jinfang Nie
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541004, China; Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, Guilin University of Technology, Guilin, 541004, China.
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Liu C, Xiao R, Dai W, Huang F, Yang X. Cadmium accumulation and physiological response of Amaranthus tricolor L. under soil and atmospheric stresses. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:14041-14053. [PMID: 33205273 DOI: 10.1007/s11356-020-11569-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 11/05/2020] [Indexed: 06/11/2023]
Abstract
In this study, cadmium (Cd) solution spraying and Cd-contaminated soil pot experiments were conducted to investigate the influence of Cd from atmospheric deposition and soil on the growth, cumulative distribution, chemical morphology, physiological, and biochemical responses of Amaranthus tricolor L. The results indicated that Cd in plants mainly came from soil (92-98%) and was stored in the roots in large quantities while the portion from atmospheric deposition could also effectively increase Cd content in stems and leaves (2-3%). Cd was mainly stored in plant cell walls and would transfer to the soluble part under high-concentration soil stress Cd from atmospheric deposition alone promoted the growth of plants, but high Cd concentrations from soil had the negative influence. The contents of H2O2 and MDA in plants increased under soil and atmospheric Cd stress, indicating that the plant cells were damaged by oxidative stress. The content of antioxidant enzymes such as POD, CAT, SOD, and antioxidants like AsA and GSH increased under low-concentration Cd stress but decreased under elevated stress, suggesting that high Cd-contaminated soil poses severe toxicity on the antioxidant system of the plants. Hence, the accumulation and physiological response of plants under multi-source Cd contamination were mainly affected by high soil Cd concentrations. Though the effect of atmospheric deposition is relatively less, it cannot be ignored.
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Affiliation(s)
- Chufan Liu
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Rongbo Xiao
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China.
| | - Weijie Dai
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Fei Huang
- Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, People's Republic of China
| | - Xiaojun Yang
- Department of Geography, Florida State University, Tallahassee, FL, 32306, USA
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30
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Yu B, Peng Y, Xu J, Qin D, Gao T, Zhu H, Zuo S, Song H, Dong J. Phytoremediation potential of Youngia japonica (L.) DC: a newly discovered cadmium hyperaccumulator. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:6044-6057. [PMID: 32989693 DOI: 10.1007/s11356-020-10853-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
Cadmium (Cd) is one of the most toxic contaminants, causing a lot of harm to environment and the human health. An outdoor pot experiment for 60 days was conducted to study the Cd(II) effects on growth, biomass, physiological properties, Cd uptake, and accumulation in Youngia japonica plants but also to evaluate the effect of Y. japonica growth on enzyme activity of Cd-contamination soils. Generally, the application of Cd(II) less than 120 mg kg-1 stimulated the growth of the plants, whereas at 160 mg kg-1 or higher levels, a significant reduction was observed. For all treatments > 10 mg kg-1 Cd(II) in soil, values of Cd in roots and aboveground parts were more than the critical value of 100 mg kg-1 and reached highest values of 252.51 and 314.29 mg kg-1, respectively. The bioconcentration factors (BCF) and translation factors (TF) for all Cd treatments were more than 1.0, with the former ranging from 1.03 to 5.46 and the later from 1.04 to 1.33. The activities of peroxidase (POD) and superoxide dismutase (SOD), as well as the levels of glutathione (GSH) and proline in Y. japonica plants after exposure to 10-200 mg kg-1 Cd(II) were stimulated, implying that they were defensive guards to the oxidative stress produced by Cd. The urease, dehydrogenase, and alkaline phosphatase activities under low Cd concentrations can be enhanced by planting Y. japonica species but inhibited under high Cd concentrations. Our data provide comprehensive evidence that Y. japonica has the typical properties of a Cd hyperaccumulator and thus may be practically employed to alleviate Cd from contaminated soils.
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Affiliation(s)
- Baohong Yu
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - Yajun Peng
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - Jieru Xu
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - Dan Qin
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - Tiancong Gao
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - Haiyan Zhu
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - Shihao Zuo
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, People's Republic of China
| | - Hongchuan Song
- School of Energy and Environment Science, Solar Energy Research Institute, Yunnan Normal University, Kunming, 650092, People's Republic of China
| | - Jinyan Dong
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing, 400715, People's Republic of China.
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31
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Jampasri K, Saeng-Ngam S, Larpkern P, Jantasorn A, Kruatrachue M. Phytoremediation potential of Chromolaena odorata, Impatiens patula, and Gynura pseudochina grown in cadmium-polluted soils. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2021; 23:1061-1066. [PMID: 33501846 DOI: 10.1080/15226514.2021.1876626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
To assess the cadmium (Cd) phytoremediation of three native plant species from Padeang zinc (Zn) mine area (Chromolaena odorata, Impatiens patula, and Gynura pseudochina), a hydroponic experiment was performed in nutrient solutions containing various concentrations of Cd (0, 5, 10, 20, and 50 mg L-1) for 15 days. In the hydroponic experiment, C. odorata showed significantly higher total Cd content than those grown in 50 mg L-1 Cd solutions. Only C. odorata and I. patula were chosen for the pot experiment. The plants were grown in spiked Cd-contaminated soils for 90 days, with different concentrations of Cd (0, 20, 40, 60, and 80 mg kg-1). The results from the pot experiment revealed that both species accumulated more Cd in their root parts, with translocation factor values < 1. C. odorata exhibited the highest biomass production, relative growth rate, and Cd uptake or removal. The findings of the study clearly demonstrate the best uptake of C. odorata in Cd phytoremediation. Novelty statementEven though Chromolaena odorata, Impatiens patula, and Gynura pseudochina have been reported as a Cd accumulator but the assessment of these species by nutrient medium and the soil was not undertaken so far. The discovery of new Cd-accumulator plants has been hindered by the lack of efficient assessing. To assess the suitability of specific species of tropical plants that are able to uptake high amounts of Cd without risk of toxicity under conditions similar to the actual field study, is a novelty.
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Affiliation(s)
- Kongkeat Jampasri
- Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
| | - Sukhumaporn Saeng-Ngam
- Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, Thailand
| | - Panadda Larpkern
- Bodhivijjalaya College, Srinakharinwirot University, Nakhon Nayok, Thailand
| | - Arom Jantasorn
- Bodhivijjalaya College, Srinakharinwirot University, Nakhon Nayok, Thailand
| | - Maleeya Kruatrachue
- Department of Biology, Faculty of Science, Mahidol University, Bangkok, Thailand
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Chen P, Li Z, Luo D, Jia R, Lu H, Tang M, Hu Y, Yue J, Huang Z. Comparative transcriptomic analysis reveals key genes and pathways in two different cadmium tolerance kenaf (Hibiscus cannabinus L.) cultivars. CHEMOSPHERE 2021; 263:128211. [PMID: 33297170 DOI: 10.1016/j.chemosphere.2020.128211] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 08/19/2020] [Accepted: 08/29/2020] [Indexed: 05/19/2023]
Abstract
Soil cadmium (Cd) contamination has become a massive environmental problem. Kenaf is an industrial fiber crop with high tolerance to heavy metals and could be potentially used for soil phytoremediation. However, the molecular mechanism of Cd in kenaf tolerance remains largely unknown. In the present study, using two contrasting Cd sensitive kenaf (GH and YJ), the key factors accounting for differential Cd tolerance were investigated. GH has a stronger Cd transport and accumulation ability than YJ. In addition, physiological index investigation on malondialdehyde (MDA) contents and antioxidant enzyme (SOD, POD, and CAT) activities showed GH has a stronger detoxification capacity than YJ. Furthermore, the cell ultrastructure of GH is more stable than that of YJ under Cd stress. Transcriptome analysis revealed 2221 (689 up and 1532 down) and 3321 (2451 up and 870 down) genes were differentially expressed in GH and YJ, respectively. More DEGs (differentially expressed genes) were characterized as up-regulated in GH, indicating GH is inclined to activate gene expression to cope with cadmium stress. GO and KEGG analyses indicate that DEGs were assigned and enriched in different pathways. Plenty of critical Cd-induced DEGs such as SOD2, PODs, MT1, DTXs, NRT1, ABCs, CES, AP2/ERF, MYBs, NACs, and WRKYs were identified. The DEGs involved pathways, including antioxidant, heavy metal transport or detoxification, substance transport, plant hormone and calcium signals, ultrastructural component, and a wide range of transcription factors were suggested to play crucial roles in kenaf Cd tolerance, and accounting for the difference in Cd stress sensitivities.
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Affiliation(s)
- Peng Chen
- Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China.
| | - Zengqiang Li
- Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China
| | - Dengjie Luo
- Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China
| | - Ruixing Jia
- Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China
| | - Hai Lu
- Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China
| | - Meiqiong Tang
- Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China
| | - Yali Hu
- Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China
| | - Jiao Yue
- Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China
| | - Zhen Huang
- Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China
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An Q, He X, Zheng N, Hou S, Sun S, Wang S, Li P, Li X, Song X. Physiological and genetic effects of cadmium and copper mixtures on carrot under greenhouse cultivation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 206:111363. [PMID: 32977082 DOI: 10.1016/j.ecoenv.2020.111363] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 09/09/2020] [Accepted: 09/13/2020] [Indexed: 06/11/2023]
Abstract
The exposure to combinations of heavy metals can affect the genes of vegetables and heavy metals would accumulate in vegetables and thereby indirectly affecting human health. Exploring the links between genetic changes and phenotypic changes of carrot under the combined pollution of Cd and Cu is of great significance for studying the mechanism of heavy metal pollution. Therefore, this study examined the effects of mixtures of cadmium (Cd) and copper (Cu) on physiological measures (malondialdehyde (MDA), proline, and antioxidant enzyme) and expression of growth-related genes (gibberellin gene, carotene gene, and glycogene) in carrot under greenhouse cultivation. The results showed in the additions with mixtures of Cd and Cu at higher concentration, the MDA content increased significantly (p < 0.05), whereas the proline content was not significantly different from those in the control. In the mixed treatments with high Cd concentrations, the activity of superoxide dismutase (SOD) was significantly lower than that in the control (p < 0.05); whereas the activity of peroxidase (POD) increased to different degrees compared to the control. In the additions with mixtures of Cd and Cu, compared with the control, the expression of the gibberellin gene was downregulated from 1.97 to 20.35 times (not including the 0.2 mg kg-1 Cd and 20 mg kg-1 Cu mixture, the expression of gibberellin gene in this treatment was upregulated 1.29 times), which lead to decreases in the length and dry weight of carrots. The expression of the carotene gene in mixed treatments downregulated more than that in single treatments, which could reduce the ability of carrots to resist oxidative damage, as suggested by the significant increase in the MDA content. In the addition with mixtures of Cd and Cu, compared with the control, the expression of the glycogene was downregulated by 1.42-59.40 times, which can cause a significant reduction in the sugar content in carrots and possibly further reduce their ability to resist heavy metal damage. A cluster analysis showed that in the additions with mixtures of Cd and Cu, the plant phenotype was affected first, and then with increases in the added concentration, the expression of genes was also affected. In summary, in the additions with mixtures of Cd and Cu, plants were damaged as Cd and Cu concentrations increased.
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Affiliation(s)
- Qirui An
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education, College of Environment and Resources, Jilin University, China
| | - Xiaolan He
- Soil and Fertilizer Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, Sichuan, China
| | - Na Zheng
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education, College of Environment and Resources, Jilin University, China; Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, Jilin, China.
| | - Shengnan Hou
- Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, Jilin, China
| | - Siyu Sun
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education, College of Environment and Resources, Jilin University, China
| | - Sujing Wang
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education, College of Environment and Resources, Jilin University, China
| | - Penyang Li
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education, College of Environment and Resources, Jilin University, China
| | - Xiaoqian Li
- Key Laboratory of Groundwater Resources and Environment of the Ministry of Education, College of Environment and Resources, Jilin University, China
| | - Xue Song
- Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun, Jilin, China
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Acclimatization of photosynthetic apparatus and antioxidant metabolism to excess soil cadmium in Buddleja spp. Sci Rep 2020; 10:21439. [PMID: 33293685 PMCID: PMC7722743 DOI: 10.1038/s41598-020-78593-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 11/26/2020] [Indexed: 11/10/2022] Open
Abstract
Heavy metal (HM) pollutants can cause serious phytotoxicity or oxidative stress in plants. Buddleja L., commonly known as “butterfly bushes”, are frequently found growing on HM-contaminated land. However, to date, few studies have focused on the physiological and biochemical responses of Buddleja species to HM stress. In this study, potted seedlings of B. asiatica Lour. and B. macrostachya Wall. ex Benth. were subjected to various cadmium (Cd) concentrations (0, 25, 50, 100, and 200 mg kg−1) for 90 days. Both studied Buddleja species showed restricted Cd translocation capacity. Exposure to Cd, non-significant differences (p > 0.05) were observed, including quantum yield of photosystem II (PSII), effective quantum yield of PSII, photochemical quenching and non-photochemical quenching in both species between all studied Cd concentrations. Moreover, levels of cellular reactive oxygen species (ROS) significantly declined (p < 0.05) with low malondialdehyde concentrations. In B. asiatica, high superoxide dismutase and significantly enhanced (p < 0.05) peroxidase (POD) activity contributed greatly to the detoxification of excess ROS, while markedly enhanced POD activity was observed in B. macrostachya. Additionally, B. macrostachya showed higher membership function values than did B. asiatica. These results suggested that both Buddleja species exhibited high Cd resistance and acclimatization.
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Leng Y, Li Y, Wen Y, Zhao H, Wang Q, Li SW. Transcriptome analysis provides molecular evidences for growth and adaptation of plant roots in cadimium-contaminated environments. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:111098. [PMID: 32798749 DOI: 10.1016/j.ecoenv.2020.111098] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/25/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Cadmium (Cd) is a detrimental element that can be toxic to plants. The physiological and biochemical responses of plants to Cd stress have been extensively studied, but the molecular mechanisms remain unclear. The present study showed that Cd severely inhibited the growth of roots and shoots and reduced plant biomass of mung bean seedlings. To further investigate the gene profiles and molecular processes in response Cd stress, transcriptome analyses of mung bean roots exposed to 100 μM Cd for 1, 5, and 9 days were performed. Cd treatment significantly decreased global gene expression levels at 5 and 9 d compared with the control. A total of 6737, 10279, and 9672 differentially expressed genes (DEGs) were identified in the 1-, 5-, and 9-day Cd-treated root tissues compared with the controls, respectively. Based on the analysis of DEG function annotation and enrichment, a pattern of mung bean roots response to Cd stress was proposed. The processes detoxification and antioxidative defense were involved in the early response of mung bean roots to Cd. Cd stress downregulated the expressions of a series of genes involved in cell wall biosynthesis, cell division, DNA replication and repair, and photosynthesis, while genes involved in signal transduction and regulation, transporters, secondary metabolisms, defense systems, and mitochondrial processes were upregulated in response to Cd, which might be contributed to the improvement of plant tolerance. Our results provide some novel insights into the molecular processes for growth and adaption of mung bean roots in response to Cd and many candidate genes for further biotechnological manipulations to improve plant tolerance to heavy metals.
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Affiliation(s)
- Yan Leng
- School of Chemical and Biological Engineering, School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Yi Li
- School of Chemical and Biological Engineering, School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Ya Wen
- School of Chemical and Biological Engineering, School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Hui Zhao
- School of Chemical and Biological Engineering, School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Qiang Wang
- School of Chemical and Biological Engineering, School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Shi-Weng Li
- School of Chemical and Biological Engineering, School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China.
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Farooq A, Nadeem M, Abbas G, Shabbir A, Khalid MS, Javeed HMR, Saeed MF, Akram A, Younis A, Akhtar G. Cadmium Partitioning, Physiological and Oxidative Stress Responses in Marigold (Calendula calypso) Grown on Contaminated Soil: Implications for Phytoremediation. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 105:270-276. [PMID: 32661664 DOI: 10.1007/s00128-020-02934-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/05/2020] [Indexed: 05/15/2023]
Abstract
Marigold (Calendula calypso) is a multipurpose ornamental plant, but its cadmium (Cd) tolerance and phytoremediation potential is unknown. The proposed study was carried out to unravel Cd partitioning, physiological and oxidative stress responses of C. calypso grown under Cd stress. Plants were grown for four months in pots having different soil Cd levels: 0, 25, 50, 75, and 100 mg kg-1 soil. Plant growth, biomass, photosynthetic pigments, leaf water contents, stomatal conductance, and membrane stability index were not decreased at 25 mg kg-1 Cd. At higher levels of Cd stress, activities of antioxidant enzymes (SOD, APX, CAT, POD) increased to mitigate H2O2 and lipid peroxidation. Cadmium uptake in plants increased with increasing soil Cd levels, and roots accumulated a greater portion of Cd, followed by shoots and flowers, respectively. On the basis of Cd accumulation and its tolerance, it was determined that C. calypso can be successfully grown for phytostabilization of Cd contaminated soils.
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Affiliation(s)
- Amjad Farooq
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan.
| | - Muhammad Nadeem
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan
| | - Ghulam Abbas
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan.
| | - Arslan Shabbir
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan
| | - Muhammad Shafique Khalid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan
| | | | - Muhammad Farhan Saeed
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari, Pakistan
| | - Ahsan Akram
- Institute of Horticultural Sciences, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Adnan Younis
- Institute of Horticultural Sciences, University of Agriculture Faisalabad, Faisalabad, Pakistan
| | - Gulzar Akhtar
- Department of Horticulture, Muhammad Nawaz Shareef University of Agriculture, Multan, Pakistan
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Canatto RA, de Oliveira JA, da-Silva CJ, Albino BÉS. Tolerance of Landoltia punctata to arsenate: an evaluation of the potential use in phytoremediation programs. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 23:102-110. [PMID: 32723099 DOI: 10.1080/15226514.2020.1797630] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Plants used in phytoremediation should accumulate and tolerate a specific pollutant. Here, we aimed at evaluating a possible arsenic (As) accumulation and mechanisms of tolerance against As-induced damage in Landoltia punctata to explore this species for phytoremediation. Plants were subjected to increasing As levels. As absorption was higher with increasing As levels. The activity of superoxide dismutase and glutathione reductase as well as anthocyanin levels increased with As levels. Catalase and peroxidase activities increased in plants subjected to As levels up to 1.0 mg L-1 and decreased at higher levels. Due to the antioxidant system, higher levels of reactive oxygen species were restrained in plants under low levels of As. However, the levels of superoxide anion, hydrogen peroxide, and lipid peroxidation increased in response to the impaired antioxidant system induced by the highest As levels. Biomass decreased in plants exposed to As and scanning electron microscopy revealed root structural damage in the root cap of plants under 3.0 mg L-1 As. This work highlights that L. punctata can be considered a hyperaccumulator species and has potential for As phytoremediation when levels are lower than 1.0 mg L-1-a concentration 100-fold higher than that recommended for drinking water. Novelty Statement: Landoltia punctata can be considered a hyperaccumulator species and has the potential for arsenic phytoremediation when levels are lower than 1.0 mg L-1.
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Wang J, Lu X, Zhang J, Ouyang Y, Wei G, Xiong Y. Rice intercropping with alligator flag (Thalia dealbata): A novel model to produce safe cereal grains while remediating cadmium contaminated paddy soil. JOURNAL OF HAZARDOUS MATERIALS 2020; 394:122505. [PMID: 32200237 DOI: 10.1016/j.jhazmat.2020.122505] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/12/2020] [Accepted: 03/08/2020] [Indexed: 05/27/2023]
Abstract
Phytoremediation has been employed as a cost-effective technique to remove the cadmium (Cd) from soil and water in several ecosystems. However, little is known about whether intercropping the remediating plants with rice (Oryza sativa) crop could reduce Cd accumulation in rice grains. We conducted greenhouse pot and concrete pond trials to explore the effects of intercropping alligator flag (Thalia dealbata, Marantaceae) on soil Cd remediation, paddy soil and microbial properties, and rice production. Our results suggest that intercropping with alligator flag significantly decreased Cd absorption, transportation, and accumulation from the soil to the rice grains (under 0.2 mg kg-1 at a soil Cd content below 2.50 mg kg-1). This decrease was due to the lowered Cd availability and higher soil pH in the rice-alligator flag intercropping system. Although planting alligator flag resulted in the reduction of soil NH4-N and NO3-N, Cd content in the rhizosphere was the main factor restricting microbial biomass, species, and community composition. Alligator flag could tolerate higher Cd contamination, and accumulate and stabilize more Cd in its tissues than rice. Our study suggests that alligator flag intercropped with rice has potential as a phytostabilization plant to produce rice safely for human consumption in moderately Cd-contaminated soils.
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Affiliation(s)
- Jiaxin Wang
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Xuening Lu
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Jiaen Zhang
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China; Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, Guangzhou, 510642, People's Republic of China; Guangdong Engineering Research Center for Modern Eco-agriculture and Circular Agriculture, Guangzhou 510642, People's Republic of China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, 510642, People's Republic of China.
| | - Ying Ouyang
- USDA Forest Service, Center for Bottomland Hardwoods Research, 775 Stone Blvd., Thompson Hall, Room 309, Mississippi State, MS 39762, United States
| | - Guangchang Wei
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
| | - Yue Xiong
- Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Wushan Road, Tianhe District, Guangzhou, 510642, People's Republic of China
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Du J, Guo Z, Li R, Ali A, Guo D, Lahori AH, Wang P, Liu X, Wang X, Zhang Z. Screening of Chinese mustard (Brassica juncea L.) cultivars for the phytoremediation of Cd and Zn based on the plant physiological mechanisms. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 261:114213. [PMID: 32408418 DOI: 10.1016/j.envpol.2020.114213] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/26/2020] [Accepted: 02/16/2020] [Indexed: 06/11/2023]
Abstract
Brassica juncea L. is an attractive species in PTMs contaminated soil remediation ascribing to its high tolerance under stress and great accumulation capacity of metals. To identify the potential Cd/Zn accumulators from numerous different Chinese mustard cultivars for practical phytoremediation is a promising strategy in China. In present work, a pot experiment involving elevated Cd/Zn concentrations was performed among 21 cultivars. Regarding physiological and biochemical indicators under Cd/Zn stress, principal component analysis and cluster analysis were used for cultivar tolerance evaluation and classification. Results showed that BJ (Bao Jie, var. involutus) cultivar was distinguished as a potential phytoremediation candidate comparing with other cultivars. Moreover, BJ accumulated the maximum Cd content of 63.85 and 77.29 mg kg-1 DW in shoots and roots, respectively, and the maximum Zn uptake by BJ were 6693 and 4777 mg kg-1 DW in shoots and roots, respectively. Accordingly, BJ had the highest Cd/Zn tolerance, remarkable accumulation and translocation capacity (accumulation factor (AF) > 1 for Cd and Zn; translocation factor (TF) > 0.8 for Cd and TF > 1 for Zn). In addition, the superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) activities of the mustard increased initially under low Cd/Zn stress as compared to the control and then declined dramatically with the increasing metals exposure concentration. Therefore, the antioxidant enzymes may play a protective role against reactive oxygen species (ROS) under low Cd/Zn stress, whereas the defense system might be collapsed under relatively high Cd/Zn stress. Furthermore, the enhanced Cd/Zn exposure led to an increase in malondialdehyde (MDA) content in the mustard cultivars, indicating that Cd/Zn had induced more severe oxidative stress and higher degree of lipid peroxidation had occurred. The present investigation results indicated that BJ (Bao Jie, var. involutus), as a native cultivar, can be further applied in the field trials of phytoremediation practices in contaminated soil.
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Affiliation(s)
- Juan Du
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhanyu Guo
- Key Laboratory of Ministry of Education on Pollution Control and Ecosystem Restoration in Industry Clusters, Guangdong Provincial Engineering and Technology Research Center for Environmental Risk Prevention and Emergency Disposal, School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong, 510006, China
| | - Ronghua Li
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Amjad Ali
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Di Guo
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Altaf Hussain Lahori
- Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi, 74000, Pakistan
| | - Ping Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xiangyu Liu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xuejia Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zengqiang Zhang
- College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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Bassegio C, Santos RF, Bassegio D, de Souza SNM. Genotypic variation in growth and lead accumulation among Brassica juncea accessions. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 22:1249-1258. [PMID: 32393051 DOI: 10.1080/15226514.2020.1759506] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Selecting (inter-varietal) Brassica juncea for tolerance to metal-contamination has been proposed as a strategy to develop superior genotypes for phytoextraction of lead (Pb) through selection and breeding techniques. To understand the differences among accessions of a single species to Pb accumulation, a pot experiment was conducted with three B. juncea accessions under levels of Pb added to the soil (0, 90, 180, and 540 mg kg-1). The duration of the growth period was 100 d. Pb concentration levels did not affect the flowering of B. juncea accessions. Plant height, shoot dry matter, and root dry matter were reduced linearly when soil Pb concentration increased to 540 mg kg-1. A significant interaction between Pb concentration levels and accessions was observed for Pb concentration in shoots and roots, indicating genotypic variation in Pb absorption. The concentration of Pb in shoots in accession PI 180266 was 51% higher compared to accessions PI 649105 and PI 432379 when soil Pb concentration increased to 540 mg kg-1. It can be concluded that the B. juncea accessions differed significantly in Pb uptake, and the selection of tolerant cultivars might be helpful for Pb phytoremediation of contaminated soils.
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Affiliation(s)
- Chaiane Bassegio
- Department of Energy Engineering in Agriculture, State University of Western Paraná, UNIOESTE, Cascavel, PR, Brasil
| | - Reginaldo Ferreira Santos
- Department of Energy Engineering in Agriculture, State University of Western Paraná, UNIOESTE, Cascavel, PR, Brasil
| | - Doglas Bassegio
- Department of Energy Engineering in Agriculture, State University of Western Paraná, UNIOESTE, Cascavel, PR, Brasil
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Sidhu GPS, Bali AS, Singh HP, Batish DR, Kohli RK. Insights into the tolerance and phytoremediation potential of Coronopus didymus L. (Sm) grown under zinc stress. CHEMOSPHERE 2020; 244:125350. [PMID: 31830642 DOI: 10.1016/j.chemosphere.2019.125350] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/06/2019] [Accepted: 11/09/2019] [Indexed: 05/27/2023]
Abstract
Zinc (Zn) is a vital micronutrient for plants, but its abundance can be calamitous. In this study, a screenhouse experiment was conducted over a 6-week period to assess the effect of soil enrichment with Zn regimes (100, 250 and 500 mg kg-1) on growth, Zn accumulation, photosynthetic pigment concentration, oxidative stress markers and activities of antioxidant enzymes in Coronopus didymus. Results revealed that Zn concentration in C. didymus roots and shoots reached up to 1848 mg kg-1 DW and 1845 mg kg-1 DW at 500 mg kg-1 Zn regime, respectively. The plant growth (root-shoot length and biomass) increased, while leaf pigment concentration and soluble protein content in C. didymus tissues decreased progressively with the increased Zn regimes in the soil. At 500 mg kg-1 Zn regime, hydrogen peroxide and malondialdehyde level increased ∼219% and 111% in roots, while ∼170% and 105% in shoots, with respect to the control. Likewise, superoxide dismutase, ascorbate peroxidase, guaiacol peroxidase and glutathione reductase activities increased significantly with elevated Zn levels. Contrarily, compared to the control, CAT activity declined gradually and reached a minimum of ∼45% in roots and 12% in shoots under highest Zn regime. The results suggested that C. didymus displayed high Zn accumulation and emerged as a tolerant plant species towards Zn stress. Elevated Zn regimes provoked reactive oxygen species generation in C. didymus tissues which was effectively neutralised and scavenged by the antioxidant enzymes, thus marked its efficacy to be potentially employed in phytoremediation and reclamation of Zn-contaminated soils.
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Affiliation(s)
| | | | - Harminder Pal Singh
- Department of Environment Studies, Panjab University, Chandigarh, 160014, India
| | - Daizy R Batish
- Department of Botany, Panjab University, Chandigarh, 160014, India
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Sikdar A, Wang J, Hasanuzzaman M, Liu X, Feng S, Roy R, Sial TA, Lahori AH, Arockiam Jeyasundar PGS, Wang X. Phytostabilization of Pb-Zn Mine Tailings with Amorpha fruticosa Aided by Organic Amendments and Triple Superphosphate. Molecules 2020; 25:molecules25071617. [PMID: 32244753 PMCID: PMC7181007 DOI: 10.3390/molecules25071617] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 03/28/2020] [Accepted: 03/30/2020] [Indexed: 02/07/2023] Open
Abstract
A greenhouse pot trial was conducted to investigate the effect of organic amendments combined with triple superphosphate on the bioavailability of heavy metals (HMs), Amorpha fruticosa growth and metal uptake from Pb-Zn mine tailings. Cattle manure compost (CMC), spent mushroom compost (SMC) and agricultural field soil (AFS) were applied to tailings at 5%, 10%, 20% and 30% w/w ratio, whereas sewage sludge (SS) and wood biochar (WB) were mixed at 2.5%, 5%, 10% and 20% w/w ratio. Triple superphosphate (TSP) was added to all the treatments at 4:1 (molar ratio). Amendments efficiently decreased DTPA-extracted Pb, Zn, Cd and Cu in treatments. Chlorophyll contents and shoot and root dry biomass significantly (p < 0.05) increased in the treatments of CMC (except T4 for chlorophyll b) and SMC, whereas treatments of SS (except T1 for chlorophyll a and b), WB and AFS (except T4 for chlorophyll a and b) did not show positive effects as compared to CK1. Bioconcentration factor (BCF) and translocation factor (TF) values in plant tissues were below 1 for most treatments. In amended treatments, soluble protein content increased, phenylalanine ammonialyase (PAL) and polyphenol oxidase (PPO) decreased, and catalase (CAT) activity showed varied results as compared to CK1 and CK2. Results suggested that A. fruticosa can be a potential metal phytostabilizer and use of CMC or SMC in combination with TSP are more effective than other combinations for the in situ stabilization of Pb-Zn mine tailings.
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Affiliation(s)
- Ashim Sikdar
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; (A.S.); (R.R.); or (T.A.S.); (P.G.S.A.J.)
- Department of Agroforestry and Environmental Science, Sylhet Agricultural University, Sylhet 3100, Bangladesh
| | - Jinxin Wang
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; (A.S.); (R.R.); or (T.A.S.); (P.G.S.A.J.)
- Key Laboratory of Plant Nutrition and the Agri-Environment in Northwest China, Ministry of Agriculture, Yangling 712100, China
- Correspondence: or ; Tel.: +86-029-8708-0055
| | - Mirza Hasanuzzaman
- Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh;
| | - Xiaoyang Liu
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, China; (X.L.); (S.F.); (X.W.)
| | - Shulin Feng
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, China; (X.L.); (S.F.); (X.W.)
| | - Rana Roy
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; (A.S.); (R.R.); or (T.A.S.); (P.G.S.A.J.)
- Department of Agroforestry and Environmental Science, Sylhet Agricultural University, Sylhet 3100, Bangladesh
| | - Tanveer Ali Sial
- College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China; (A.S.); (R.R.); or (T.A.S.); (P.G.S.A.J.)
- Department of Soil Science, Sindh Agriculture University, Tandojam 70060, Pakistan
| | - Altaf Hussain Lahori
- Department of Environmental Sciences, Sindh Madressatul Islam University, Karachi 74000, Pakistan;
| | | | - Xiuqing Wang
- Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, China; (X.L.); (S.F.); (X.W.)
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Xu S, He XY, Du Z, Chen W, Li B, Li Y, Li MH, Schaub M. Tropospheric ozone and cadmium do not have interactive effects on growth, photosynthesis and mineral nutrients of Catalpa ovata seedlings in the urban areas of Northeast China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 704:135307. [PMID: 31812382 DOI: 10.1016/j.scitotenv.2019.135307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 10/14/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Heavy metal contamination and tropospheric ozone (O3) pollution often co-occur in heavy industrial urban areas, adversely affecting urban plant health. Little is known about the characteristics of growth, physiological metabolism, bioaccumulation of cadmium (Cd) and mineral nutrients in urban trees under the combination of soil Cd contamination and elevated O3 exposure. In this study, one-year-old street tree Catalpa ovata G. Don seedlings were exposed to Cd contaminated soil (0, 100, 500 mg/kg soil) with 40 µg/m3 O3 (ambient air) and 120 µg/m3 O3 (elevated O3 exposure) for 4 weeks. The results revealed that 500 mg/kg soil Cd addition alone decreased net photosynthetic rate, stomatal conductance, peroxidase activity and increased abscisic acid content and oxidative injury in the leaves of C. ovata. Furthermore, Cd soil contamination decreased leaf, stem, root and total biomass and affected Cd, Mg, Fe, and Zn contents in leaves (P < 0.01), but it did not affect Mg, Fe and Zn contents in roots. O3 exposure did not affect growth, net photosynthetic rate, Cd accumulation and mineral nutrient contents of C. ovata. No interactive effect between Cd and O3 was found on growth, oxidative injury, photosynthetic rate, and the contents of Cd, Mg, Fe and Zn in plant tissues (P > 0.05). Our findings suggest that C. ovata is an appropriate tree species for urban greening and afforestation in heavy industrial urban areas with high O3 pollution in Northeast China. To ensure successful afforestation in heavy industrial areas, the long-term and large scale studies are needed to advance our understanding of the combined effects from extreme climate conditions and multi-pollutant exposure on the metabolism of mature urban trees.
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Affiliation(s)
- Sheng Xu
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang 110016, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Xing-Yuan He
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang 110016, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; Shenyang Arboretum, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China.
| | - Zhong Du
- College of Land and Resources, China West Normal University, Nanchong 637009, People's Republic of China.
| | - Wei Chen
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang 110016, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; Shenyang Arboretum, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China
| | - Bo Li
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang 110016, People's Republic of China
| | - Yan Li
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China; Shenyang Arboretum, Chinese Academy of Sciences, Shenyang 110016, People's Republic of China
| | - Mai-He Li
- Swiss Federal Research Institute WSL, Birmensdorf 8903, Switzerland; SwissForestLab, Birmensdorf 8903, Switzerland
| | - Marcus Schaub
- Swiss Federal Research Institute WSL, Birmensdorf 8903, Switzerland; SwissForestLab, Birmensdorf 8903, Switzerland
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Wang J, Chen X, Chi Y, Chu S, Hayat K, Zhi Y, Hayat S, Terziev D, Zhang D, Zhou P. Optimization of NPK fertilization combined with phytoremediation of cadmium contaminated soil by orthogonal experiment. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 189:109997. [PMID: 31812023 DOI: 10.1016/j.ecoenv.2019.109997] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 11/19/2019] [Accepted: 11/21/2019] [Indexed: 05/11/2023]
Abstract
In the current experiment, influence of NPK composition on the Cd contaminated soil-plant (Solanum nigrum L.) system as well as the phytoremediation efficiency were comprehensively studied. The composition of NPK was optimized for a sustainable phytoremediation and simultaneous agronomic technique in Cd-contaminated soil by orthogonal (L14) experiment, aimed to achieve plant productivity and maximum phytoremediation potential enhancement. Results showed that different treatments of NPK composition enhanced soil properties including saccharase, urease, catalase and acid phosphatase activities as compared to the control treatment, however, soil pH was slightly decreased by 3.64%~6.67% with different composition of NPK treatments. Plant biomass and Cd concentration in the aboveground part (stem and leaves) of S. nigrum were significantly (P < 0.05) enhanced by 14.19%~48.97% and 38.50%~127.15% as compared to control plants with the addition of NPK fertilizers having different composition. Meanwhile, with the application of NPK fertilizer root/shoot Cd ratio and translocation factor (TF) was significantly decreased, however, bioconcentration factor (BCF) was increased as compared to control. Additionally, different composition of NPK fertilizers significantly increased photosynthetic pigments (chlorophyll a, chlorophyll b, total chlorophyll, and carotenoids) and soluble protein in comparison to control. The activities of antioxidant enzymes in S. nigrum including ascorbate peroxidase (APX), catalase (CAT), peroxidase (POD), superoxide dismutase (SOD) and glutathione reductase (GR) were increased, while malonaldehyde (MDA) and proline contents were decreased. Principal component analysis (PCA) showed that N3P2K2 treatment had the highest comprehensive score amongst other studied treatments of NPK composition, owing to its optimal composition for the investigated soil-S. nigrum system. Moreover, it was found that optimal composition (N3P2K2) of fertilizer resulted in increase of the plant resistance to Cd and the efficiency of phytoextraction. Therefore, it is suggested to all the small-holder famers and scientific community that precise composition of NPK fertilizer should be utilized according to soil properties, environmental conditions and plant requirements under Cd-stress condition in order to achieve maximum biomass, Cd uptake efficiency as well phytoremediation potential in moderately Cd contaminated soil.
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Affiliation(s)
- Juncai Wang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Areas, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Xunfeng Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Areas, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yaowei Chi
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Areas, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shaohua Chu
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Areas, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Kashif Hayat
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Areas, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yuee Zhi
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Areas, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Sikandar Hayat
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Dimitar Terziev
- Department of Natural Resource Economics, University of National and World Economy (UNWE), 1700, Sofia, Student Town, Bulgaria
| | - Dan Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Areas, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Pei Zhou
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China; Key Laboratory of Urban Agriculture, Ministry of Agriculture and Rural Areas, Shanghai Jiao Tong University, Shanghai, 200240, China.
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Sharma A, Sidhu GPS, Araniti F, Bali AS, Shahzad B, Tripathi DK, Brestic M, Skalicky M, Landi M. The Role of Salicylic Acid in Plants Exposed to Heavy Metals. Molecules 2020; 25:540. [PMID: 31991931 PMCID: PMC7037467 DOI: 10.3390/molecules25030540,] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023] Open
Abstract
Salicylic acid (SA) is a very simple phenolic compound (a C7H6O3 compound composed of an aromatic ring, one carboxylic and a hydroxyl group) and this simplicity contrasts with its high versatility and the involvement of SA in several plant processes either in optimal conditions or in plants facing environmental cues, including heavy metal (HM) stress. Nowadays, a huge body of evidence has unveiled that SA plays a pivotal role as plant growth regulator and influences intra- and inter-plant communication attributable to its methyl ester form, methyl salicylate, which is highly volatile. Under stress, including HM stress, SA interacts with other plant hormones (e.g., auxins, abscisic acid, gibberellin) and promotes the stimulation of antioxidant compounds and enzymes thereby alerting HM-treated plants and helping in counteracting HM stress. The present literature survey reviews recent literature concerning the roles of SA in plants suffering from HM stress with the aim of providing a comprehensive picture about SA and HM, in order to orientate the direction of future research on this topic.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
- Correspondence: (A.S.); (F.A.); (M.L.)
| | - Gagan Preet Singh Sidhu
- Department of Environment Education, Government College of Commerce and Business Administration, Chandigarh 160047, India;
| | - Fabrizio Araniti
- Dipartimento AGRARIA, Università Mediterranea di Reggio Calabria, Località Feo di Vito, SNC I-89124 Reggio Calabria, RC, Italy
- Correspondence: (A.S.); (F.A.); (M.L.)
| | | | - Babar Shahzad
- School of Land and Food, University of Tasmania, Hobart, TAS 7005, Australia;
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida 201313, India;
| | - Marian Brestic
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, 94976 Nitra, Slovakia;
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic;
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic;
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, I-56124 Pisa, Italy
- CIRSEC, Centre for Climatic Change Impact, University of Pisa, Via del Borghetto 80, I-56124 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, I-56124 Pisa, Italy
- Correspondence: (A.S.); (F.A.); (M.L.)
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Sharma A, Sidhu GPS, Araniti F, Bali AS, Shahzad B, Tripathi DK, Brestic M, Skalicky M, Landi M. The Role of Salicylic Acid in Plants Exposed to Heavy Metals. Molecules 2020; 25:E540. [PMID: 31991931 PMCID: PMC7037467 DOI: 10.3390/molecules25030540] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/23/2020] [Accepted: 01/25/2020] [Indexed: 12/18/2022] Open
Abstract
Salicylic acid (SA) is a very simple phenolic compound (a C7H6O3 compound composed of an aromatic ring, one carboxylic and a hydroxyl group) and this simplicity contrasts with its high versatility and the involvement of SA in several plant processes either in optimal conditions or in plants facing environmental cues, including heavy metal (HM) stress. Nowadays, a huge body of evidence has unveiled that SA plays a pivotal role as plant growth regulator and influences intra- and inter-plant communication attributable to its methyl ester form, methyl salicylate, which is highly volatile. Under stress, including HM stress, SA interacts with other plant hormones (e.g., auxins, abscisic acid, gibberellin) and promotes the stimulation of antioxidant compounds and enzymes thereby alerting HM-treated plants and helping in counteracting HM stress. The present literature survey reviews recent literature concerning the roles of SA in plants suffering from HM stress with the aim of providing a comprehensive picture about SA and HM, in order to orientate the direction of future research on this topic.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Gagan Preet Singh Sidhu
- Department of Environment Education, Government College of Commerce and Business Administration, Chandigarh 160047, India;
| | - Fabrizio Araniti
- Dipartimento AGRARIA, Università Mediterranea di Reggio Calabria, Località Feo di Vito, SNC I-89124 Reggio Calabria, RC, Italy
| | | | - Babar Shahzad
- School of Land and Food, University of Tasmania, Hobart, TAS 7005, Australia;
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Agriculture, Amity University Uttar Pradesh, Noida 201313, India;
| | - Marian Brestic
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, 94976 Nitra, Slovakia;
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic;
| | - Milan Skalicky
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, 16500 Prague, Czech Republic;
| | - Marco Landi
- Department of Agriculture, Food and Environment, University of Pisa, I-56124 Pisa, Italy
- CIRSEC, Centre for Climatic Change Impact, University of Pisa, Via del Borghetto 80, I-56124 Pisa, Italy
- Interdepartmental Research Center Nutrafood “Nutraceuticals and Food for Health”, University of Pisa, I-56124 Pisa, Italy
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47
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Huang Y, Zu L, Zhang M, Yang T, Zhou M, Shi C, Shi F, Zhang W. Tolerance and distribution of cadmium in an ornamental species Althaea rosea Cavan. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 22:713-724. [PMID: 31885282 DOI: 10.1080/15226514.2019.1707771] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The ornamental plants of Althaea rosea Cavan. were exposed to cadmium (Cd) at concentrations of 0, 5, 10, 50 and 100 mg·kg-1 to evaluate the potential of accumulation capacity and tolerance ability. The results showed that A. rosea was a Cd tolerance plant, and Cd accumulation was 4.57 mg·kg-1 in shoot and 9.43 mg·kg-1 in root at 100 mg·kg-1 Cd concentration. The high tolerance ability could be explained by the distribution characteristics and the defense mechanism. The accumulated Cd was allocated in root, older leaves, and subcellular level of the cell wall and supernatant soluble fraction to protect the physiological leaves from damage. The defense systems included the enzyme systems of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and ascorbate peroxidase (APX) that could effectively eliminate the excessive ROS, and the non-enzymes system of total soluble proteins and non-protein thiols (NP-SH) that played an important role in detoxification. Thus, A. rosea could be used as a potential species for phytoremediation in Cd contaminated areas and beautify the environment.
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Affiliation(s)
- Yaping Huang
- College of Life Science, Nankai University, Tianjin, China
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Lihong Zu
- College of Life Science, Nankai University, Tianjin, China
| | - Mei Zhang
- College of Life Science, Nankai University, Tianjin, China
| | - Tong Yang
- College of Life Science, Nankai University, Tianjin, China
| | - Meili Zhou
- College of Life Science, Nankai University, Tianjin, China
| | - Cong Shi
- School of Environment and Energy, Shenzhen Graduate School of Peking University, Shenzhen, China
| | - Fuchen Shi
- College of Life Science, Nankai University, Tianjin, China
| | - Wenju Zhang
- National Engineering Laboratory for Improving Quality of Arable Land, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, China
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Zhao J, Zhang M, Zhang W, Liu F, Huang K, Lin K. Insight into the tolerance, biochemical and antioxidative response in three moss species on exposure to BDE-47 and BDE-209. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 181:445-454. [PMID: 31228820 DOI: 10.1016/j.ecoenv.2019.06.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/11/2019] [Accepted: 06/14/2019] [Indexed: 06/09/2023]
Abstract
Responses of Hypnum plumaeforme, Thuidium cymbifolium, and Plagiomnium cuspidatum to short-term (96 h) BDE-47 and BDE-209(0, 0.005, 0.05, 0.5, and 5 μM, respectively) stress were investigated. Both BDE-47 and BDE-209 increased the lipid peroxidation in the three moss species, malondialdehyde (MDA) content increased with the elevated concentration of contaminants, and followed the order: P. cuspidatum > H. plumaeforme > T. cymbifolium on exposure to different concentrations. BDE-47 and BDE-209 stimulated the superoxide dismutase (SOD) and peroxidase (POD) activity of the three moss species, indicating that they played an important role in preventing oxidative stress. Reactive oxygen species (ROS) accumulation was positively correlated with the level of contaminants. The response of anti-oxidative enzymes to BDE-47 and BDE-209 stress differed among the three species. At 5 μM BDE-47 and BDE-209 treatment, the chlorophyll content of T. cymbifolium was even a little higher than the control group. Proline played an important role for the scavenging of ROS in P. cuspidatum and T. cymbifolium. In summary, BDE-47 was more toxic to the three moss species than BDE-209. P. cuspidatum was the most sensitive and T. cymbifolium was the most tolerant species to BDE-47 and BDE-209 stress. The strong resistance and tolerance of T. cymbifolium, combined with sensitive/moderate anti-oxidative response could elucidate its potential use as bio-indicator in the ecological risk assessment of BDE-47 and BDE-209 contamination.
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Affiliation(s)
- Jianhua Zhao
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China; College of Chemical and Material Engineering, Quzhou University, Quzhou, 324000, China
| | - Meng Zhang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Wei Zhang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Fuwen Liu
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Kai Huang
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China.
| | - Kuangfei Lin
- State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai, 200237, China.
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49
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Huang H, Zhao Y, Xu Z, Zhang W, Jiang K. Physiological responses of Broussonetia papyrifera to manganese stress, a candidate plant for phytoremediation. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 181:18-25. [PMID: 31154116 DOI: 10.1016/j.ecoenv.2019.05.063] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 05/19/2019] [Accepted: 05/20/2019] [Indexed: 05/17/2023]
Abstract
Effective phytoremediation of Mn contaminated soil requires the selection of a species with good manganese tolerance. Broussonetia papyrifera is an important economic plant and pioneer species, it could be well adapted to drought and saline-alkali environment. In order to understand the effect of Mn stress on B. papyrifera, the effects of different concentrations of Mn (0-50 mmol/L) stress on the growth, morphology, Mn tolerance and physiological indexes of the plant were explored. The results showed that the biomass, surface area, length, root volume, tips, forks, and crossings of B. papyrifera reached the maximum at the Mn concentration of 1 mmol/L. Mn content in the tissue and TF in plants increased with the increase of concentration, while the BCF increased first and then decreased, and the maximum BCF was 0.154 at 10 mmol/L. The accumulation of Mn lead to cell membrane lipid peroxidation, which increased toxic substances in plants, resulting in the increase of MDA and PRO, and affected the synthesis of chlorophyll. However, B. papyrifera could effectively alleviate oxidative stress by increasing the activities of antioxidant enzymes (SOD, POD, CAT), protein and soluble sugar. The results suggested that B. papyrifera had a good oxidative stress mechanism to Mn stress and could be used as candidates for remediation of pollution in mining areas.
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Affiliation(s)
- Huimin Huang
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha, 410004, Hunan, PR China
| | - Yunlin Zhao
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha, 410004, Hunan, PR China
| | - Zhenggang Xu
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha, 410004, Hunan, PR China; Hunan Urban and Rural Ecological Planning and Restoration Engineering Research Center, Hunan City University, Yiyang, 413000, Hunan, PR China.
| | - Wan Zhang
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha, 410004, Hunan, PR China
| | - Kangkang Jiang
- Hunan Research Center of Engineering Technology for Utilization of Environmental and Resources Plant, Central South University of Forestry and Technology, Changsha, 410004, Hunan, PR China
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Xu X, Yang B, Qin G, Wang H, Zhu Y, Zhang K, Yang H. Growth, accumulation, and antioxidative responses of two Salix genotypes exposed to cadmium and lead in hydroponic culture. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:19770-19784. [PMID: 31090001 DOI: 10.1007/s11356-019-05331-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
Cd and Pb are a toxic environmental pollutant, and their elevated concentrations in the waters and soils could exert detriment effects on human health by food chain. In order to evaluate the capacity to heavy metal accumulation and the physiochemical responses of two Salix genotypes, a 35-day hydroponic seedling experiment was implemented with Salix matsudana Koidz. 'Shidi1' (A42) and Salix psammophila C. 'Huangpi1' (A94) under different concentrations of Cd (15 and 30 μM) or Pb (250 and 300 μM). The results showed that the biomass of A94 severely reduced more than that of A42. The accumulation ability of Cd in different plant organs followed the sequence of leaves > roots > stems. Pb primarily accumulated in the roots for both Salix genotypes (54.27 mg g-1 for A42 and 54.52 mg g-1 for A94). Translocation factors based on accumulation (TF') for Cd were more than 8.0, while TF's for Pb were less than 1.0 in both A42 and A94, implying they could be applied in the phytoremediation of Cd-contaminated sites due to their stronger ability to Cd phytoextraction. The stress of Cd or Pb significantly increased malondialdehyde (MDA) contents and increased photosynthetic rates in leaves of two Salix genotypes. Transpiration rates of willow were positively correlated with its Cd translocation. Both catalase (CAT) and peroxidase (POD) activities were suppressed, while the superoxide dismutase (SOD) was boosted with increasing Cd and Pb levels in the leaves and roots of the two willow genotypes, suggesting SOD plays an important role in the removal of ROS. The inconsistency of the changes in enzyme activity suggests that the integrated antioxidative mechanisms regulate the tolerance to Cd and Pb stress.
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Affiliation(s)
- Xiaohan Xu
- School of Water Conservancy and Environment, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong Province, China
| | - Baoshan Yang
- School of Water Conservancy and Environment, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong Province, China
| | - Guanghua Qin
- Shandong Academy of Forestry, No. 42, East Road of Wenhua Road, Jinan, 250014, Shandong Province, China.
| | - Hui Wang
- School of Water Conservancy and Environment, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong Province, China.
| | - Yidan Zhu
- School of Water Conservancy and Environment, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong Province, China
| | - Kaizhen Zhang
- School of Water Conservancy and Environment, University of Jinan, No. 336, West Road of Nan Xinzhuang, Jinan, 250022, Shandong Province, China
| | - Hanqi Yang
- The Xiuwen International Academy at Jinan, Jinan, 250100, China
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