1
|
Jackulin F, Senthil Kumar P, Chitra B, Karthick S, Rangasamy G. A review on recent advancements in the treatment of polyaromatic hydrocarbons (PAHs) using sulfate radicals based advanced oxidation process. ENVIRONMENTAL RESEARCH 2024; 253:119124. [PMID: 38734294 DOI: 10.1016/j.envres.2024.119124] [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: 03/20/2024] [Revised: 04/30/2024] [Accepted: 05/09/2024] [Indexed: 05/13/2024]
Abstract
Polyaromatic hydrocarbons (PAHs) are the most persistent compounds that get contaminated in the soil and water. Nearly 16 PAHs was considered to be a very toxic according US protection Agency. Though its concentration level is low in the environments but the effects due to it, is enormous. Advanced Oxidation Process (AOP) is an emergent methodology towards treating such pollutants with low and high molecular weight of complex substances. In this study, sulfate radical (SO4‾•) based AOP is emphasized for purging PAH from different sources. This review essentially concentrated on the mechanism of SO4‾• for the remediation of pollutants from different sources and the effects caused due to these pollutants in the environment was reduced by this mechanism is revealed in this review. It also talks about the SO4‾• precursors like Peroxymonosulfate (PMS) and Persulfate (PS) and their active participation in treating the different sources of toxic pollutants. Though PS and PMS is used for removing different contaminants, the degradation of PAH due to SO4‾• was presented particularly. The hydroxyl radical (•OH) mechanism-based methods are also emphasized in this review along with their limitations. In addition to that, different activation methods of PS and PMS were discussed which highlighted the performance of transition metals in activation. Also this review opened up about the degradation efficiency of contaminants, which was mostly higher than 90% where transition metals were used for activation. Especially, on usage of nanoparticles even 100% of degradation could be able to achieve was clearly showed in this literature study. This study mainly proposed the treatment of PAH present in the soil and water using SO4‾• with different activation methodologies. Particularly, it emphasized about the importance of treating the PAH to overcome the risk associated with the environment and humans due to its contamination.
Collapse
Affiliation(s)
- Fetcia Jackulin
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India
| | - P Senthil Kumar
- Centre for Pollution Control and Environmental Engineering, School of Engineering and Technology, Pondicherry University, Kalapet, Puducherry, 605014, India.
| | - B Chitra
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, 603110, Tamil Nadu, India
| | - S Karthick
- Department of Chemical Engineering, Motilal Nehru National Institute of Technology, Allahabad, Uttar Pradesh, 211004, India
| | - Gayathri Rangasamy
- Department of Civil Engineering, Faculty of Engineering, Karpagam Academy of Higher Education, Pollachi Main Road, Eachanari Post, Coimbatore, 641021, Tamil Nadu, India; Department of Sustainable Engineering, Institute of Biotechnology, Saveetha School of Engineering, SIMATS, Chennai, 602 105, Tamil Nadu, India
| |
Collapse
|
2
|
Tarigholizadeh S, Motafakkerazad R, Mohajel Kazemi E, Kolahi M, Salehi-Lisar SY, Sushkova S, Minkina T. Phenanthrene metabolism in Panicum miliaceum: anatomical adaptations, degradation pathway, and computational analysis of a dioxygenase enzyme. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33737-5. [PMID: 38777975 DOI: 10.1007/s11356-024-33737-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
Polycyclic aromatic compounds (PAHs) are persistent organic pollutants of environmental concern due to their potential impacts on food chain, with plants being particularly vulnerable. While plants can uptake, transport, and transform PAHs, the precise mechanisms underlying their localization and degradation are not fully understood. Here, a cultivation experiment conducted with Panicum miliaceum exposed different concentrations of phenanthrene (PHE). Intermediate PHE degradation compounds were identified via GC-MS analysis, leading to the proposal of a phytodegradation pathway featuring three significant benzene ring cleavage steps. Our results showed that P. miliaceum exhibited the ability to effectively degrade high levels of PHE, resulting in the production of various intermediate products through several chemical changes. Examination of the localization and anatomical characteristics revealed structural alterations linked to PHE stress, with an observed enhancement in PHE accumulation density in both roots and shoots as treatment levels increased. Following a 2-week aging period, a decrease in the amount of PHE accumulation was observed, along with a change in its localization. Bioinformatics analysis of the P. miliaceum 2-oxoglutarate-dependent dioxygenase (2-ODD) DAO-like protein revealed a 299 amino acid structure with two highly conserved domains, namely 2OG-FeII_Oxy and DIOX_N. Molecular docking analysis aligned with experimental results, strongly affirming the potential link and direct action of 2-ODD DAO-like protein with PHE. Our study highlights P. miliaceum capacity for PAHs degradation and elucidates the mechanisms behind enhanced degradation efficiency. By integrating experimental evidence with bioinformatics analysis, we offer valuable insights into the potential applications of plant-based remediation strategies for PAHs-contaminated environments.
Collapse
Affiliation(s)
- Sarieh Tarigholizadeh
- Department of Plant, Cell and Molecular Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
- Southern Federal University, Rostov-On-Don, 344090, Russia
| | - Rouhollah Motafakkerazad
- Department of Plant, Cell and Molecular Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran.
| | - Elham Mohajel Kazemi
- Department of Plant, Cell and Molecular Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Maryam Kolahi
- Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | - Seyed Yahya Salehi-Lisar
- Department of Plant, Cell and Molecular Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | | |
Collapse
|
3
|
Li SX, Gao XR, Yi J, Jia LY, Ren J. A new strategy of using periphyton to simultaneously promote remediation of PAHs-contaminated soil and production of safer crops. ENVIRONMENTAL RESEARCH 2024; 246:118149. [PMID: 38199466 DOI: 10.1016/j.envres.2024.118149] [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: 10/18/2023] [Revised: 12/20/2023] [Accepted: 01/05/2024] [Indexed: 01/12/2024]
Abstract
Contaminated farmland leads to serious problems for human health through biomagnification in the soil-crop-human chain. In this paper, we have established a new soil remediation strategy using periphyton for the production of safer rice. Four representative polycyclic aromatic hydrocarbons (PAHs), including phenanthrene (Phe), pyrene (Pyr), benzo[b]fluoranthene (BbF), and benzo[a]pyrene (BaP), were chosen to generate artificially contaminated soil. Pot experiments demonstrated that in comparison with rice cultivation in polluted soil with ΣPAHs (50 mg kg-1) but without periphyton, adding periphyton decreased ΣPAHs contents in both rice roots and shoots by 98.98% and 99.76%, respectively, and soil ΣPAHs removal reached 94.19%. Subsequently, risk assessment of ΣPAHs based on toxic equivalent concentration (TEQ), pollution load index (PLI), hazard index (HI), toxic unit for PAHs mixture (TUm), and incremental lifetime cancer risk (ILCR) indicated that periphyton lowered the ecological and carcinogenicity risks of PAHs. Besides, the role of periphyton in enhancing the rice productivity was revealed. The results indicated that periphyton alleviated the oxidative stress of PAHs on rice by reducing malondialdehyde (MDA) content and increasing total antioxidant capacity (T-AOC). Periphyton reduced the toxic stress of PAHs on the soil by promoting soil carbon cycling and metabolic activities as well. Periphyton also improved the soil's physicochemical properties, such as the percentage of soil aggregate, the contents of humic substances (HSs) and nutrients, which increased rice biomass. These findings confirmed that periphyton could improve rice productivity by enhancing soil quality and health. This study provides a new eco-friendly strategy for soil remediation and simultaneously enables the production of safe crops on contaminated land.
Collapse
Affiliation(s)
- Su-Xin Li
- MOE Key Laboratory of Bio-Intelligent Manufacturing, School of Bioengineering, Dalian University of Technology, No.2 Linggong Road, Dalian, 116024, PR China
| | - Xiao-Rong Gao
- MOE Key Laboratory of Bio-Intelligent Manufacturing, School of Bioengineering, Dalian University of Technology, No.2 Linggong Road, Dalian, 116024, PR China.
| | - Jun Yi
- Key Laboratory of Edible Oil Quality and Safety for State Market Regulation, Wuhan, 430040, PR China
| | - Ling-Yun Jia
- MOE Key Laboratory of Bio-Intelligent Manufacturing, School of Bioengineering, Dalian University of Technology, No.2 Linggong Road, Dalian, 116024, PR China
| | - Jun Ren
- MOE Key Laboratory of Bio-Intelligent Manufacturing, School of Bioengineering, Dalian University of Technology, No.2 Linggong Road, Dalian, 116024, PR China
| |
Collapse
|
4
|
Iqbal S, Ummara U, Noreen S, Akhter MS, Jaleel F, Jabeen S, Naz N, Wahid A, Alotaibi MO, Nour MM, Al-Qthanin RN, Aqeel M. Enhancing systematic tolerance in Bermuda grass (Cynodon dactylon L.) through amplified alkB gene expression and bacterial-driven hydrocarbon degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:19871-19885. [PMID: 38368297 DOI: 10.1007/s11356-024-32326-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 01/30/2024] [Indexed: 02/19/2024]
Abstract
This study aimed to access the impact of soil polluted with petroleum (5, 10 g petroleum kg-1 soil) on Bermuda grass (Cynodon dactylon L.) with and without applied bacterial inoculants (Arthrobacter oxydans ITRH49 and Pseudomonas sp. MixRI75). Both soil and seed were given bacterial inoculation. The evaluated morphological parameters of Bermuda grass were fresh and dry weight. The results demonstrated that applied bacterial inoculants enhanced 5.4%, 20%, 28% and 6.4%, 21%, and 29% shoot and root fresh/dry weights in Bermuda grass under controlled environment. The biochemical analysis of shoot and root was affected deleteriously by the 10 g petroleum kg-1 soil pollution. Microbial inoculants enhanced the activities of enzymatic (catalase, peroxidase, glutathione reductase, ascorbate peroxidase, superoxide dismutase) and non-enzymatic (ɑ-tocopherols, proline, reduced glutathione, ascorbic acid) antioxidant to mitigate the toxic effects of ROS (H2O2) under hydrocarbon stressed condition. The maximum hydrocarbon degradation (75%) was recorded by Bermuda grass at 5 g petroleum kg-1 soil contamination. Moreover, bacterial persistence and alkane hydroxylase gene (alkB) abundance and expression were observed more in the root interior than in the rhizosphere and shoot interior of Bermuda grass. Subsequently, the microbe used a biological tool to propose that the application of plant growth-promoting bacteria would be the most favorable choice in petroleum hydrocarbon polluted soil to conquer the abiotic stress in plants and the effective removal of polyaromatic hydrocarbons in polluted soil.
Collapse
Affiliation(s)
- Sehrish Iqbal
- Department of Environmental Science, The Women University Multan, Multan, Pakistan
| | - Ume Ummara
- Department of Botany, The Islamia University of Bahawalpur, Rahim Yar Khan Campus, Bahawalpur, Pakistan
| | - Sibgha Noreen
- Institute of Botany, Bahauddin Zakariya University, Multan, Pakistan
| | | | - Farrukh Jaleel
- Department of Chemistry, The Islamia University of Bahawalpur, Rahim Yar Khan Campus, Bahawalpur, Pakistan
| | - Shazia Jabeen
- Department of Environmental Science, The Women University Multan, Multan, Pakistan
| | - Nargis Naz
- Department of Botany, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Abdul Wahid
- Department of Environmental Science, Bahauddin Zakariya University, Multan, Pakistan
| | - Modhi O Alotaibi
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, 11671, Riyadh, Saudi Arabia
| | - Mudawi M Nour
- Nurseries Department, Habitat Regeneration and Landscaping, Wildlife and Natural Heritage, Royal Commission for AlUla, Saudi Arabia
| | - Rahmah N Al-Qthanin
- Prince Sultan Bin-Abdul-Aziz Center for Environment and Tourism Studies and Researches, King Khalid University, P.O. Box 960, 61421, Abha, Saudi Arabia
- Biology Department, College of Sciences, King Khalid University, Abha, Saudi Arabia
| | - Muhammad Aqeel
- State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystem, College of Ecology, Lanzhou University, Lanzhou, 730000, Gansu, China.
| |
Collapse
|
5
|
Xu Y, Zhang X, Xiao Z, Wang F, He M, Li Y, Che T, Li Y, Zang X, Li H, Hu F, Xu L. Concentration-dependent mechanisms of fluoranthene uptake by ryegrass. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 261:115088. [PMID: 37285675 DOI: 10.1016/j.ecoenv.2023.115088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 05/25/2023] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
Fluoranthene (Flu) uptake by plants is affected by plant growth and environmental concentration. Although plant growth processes, including substance synthesis and antioxidant enzyme activities, have been reported to regulate Flu uptake, their contributions have been poorly evaluated. Moreover, the effect of Flu concentration is little known. Here, low concentrations (0, 1, 5, and 10 mg/L) and high concentrations (20, 30, and 40 mg/L) of Flu were set to compare the changes in Flu uptake by ryegrass (Lolium multiflorum Lam.). Indices of plant growth (biomass, root length, root area, root tip number, and photosynthesis and transpiration rates), substance synthesis (indole acetic acid [IAA] content), and antioxidant enzyme activities (superoxide dismutase [SOD], peroxidase [POD], and catalase [CAT]) were recorded to unravel the mechanism of Flu uptake. Findings suggested that the Langmuir model fitted Flu uptake by ryegrass well. Flu absorption capacity in the root was stronger than that that in the leaf. Flu bioconcentration and translocation factors increased then reduced with the increase in Flu concentration and reached the maximum value under 5 mg/L Flu treatment. Plant growth and IAA content had the same pattern as before bioconcentration factor (BCF). SOD and POD activities increased then decreased with Flu concentration and reached their highest levels under 30 and 20 mg/L Flu treatments, respectively, whereas CAT activity decreased continuously and reached its lowest level under 40 mg/L Flu treatment. Variance partitioning analysis indicated that IAA content had the greatest significant effect on Flu uptake under low-concentration Flu treatments, whereas antioxidant enzyme activities had the greatest significant effect on Flu uptake under high-concentration Flu treatments. Revealing the concentration-dependent mechanisms of Flu uptake could provide a basis for regulating pollutant accumulation in plants.
Collapse
Affiliation(s)
- Yuanzhou Xu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Xinyue Zhang
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Zhuoliang Xiao
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Fei Wang
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Mingyue He
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Yunyun Li
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Ting Che
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Yajuan Li
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Xiayun Zang
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China
| | - Huixin Li
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210014, People's Republic of China
| | - Feng Hu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210014, People's Republic of China
| | - Li Xu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, People's Republic of China; Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing 210014, People's Republic of China; Sanya Institute of Nanjing Agricultural University, Sanya, China.
| |
Collapse
|
6
|
Voloshina M, Rajput VD, Chernikova N, Minkina T, Vechkanov E, Mandzhieva S, Voloshin M, Krepakova M, Dudnikova T, Sushkova S, Plotnikov A. Physiological and Biochemical Responses of Solanum lycopersicum L. to Benzo[a]pyrene Contaminated Soils. Int J Mol Sci 2023; 24:ijms24043741. [PMID: 36835172 PMCID: PMC9963405 DOI: 10.3390/ijms24043741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/01/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Benzo[a]pyrene (BaP) is noted as one of the main cancer-causing pollutants in human beings and may damage the development of crop plants. The present work was designed to explore more insights into the toxic effects of BaP on Solanum lycopersicum L. at various doses (20, 40, and 60 MPC) spiked in Haplic Chernozem. A dose-dependent response in phytotoxicity were noted, especially in the biomass of the roots and shoots, at doses of 40 and 60 MPC BaP and the accumulation of BaP in S. lycopersicum tissues. Physiological and biochemical response indices were severely damaged based on applied doses of BaP. During the histochemical analysis of the localization of superoxide in the leaves of S. lycopersicum, formazan spots were detected in the area near the leaf's veins. The results of a significant increase in malondialdehyde (MDA) from 2.7 to 5.1 times, proline 1.12- to 2.62-folds, however, a decrease in catalase (CAT) activity was recorded by 1.8 to 1.1 times. The activity of superoxide dismutase (SOD) increased from 1.4 to 2, peroxidase (PRX) from 2.3 to 5.25, ascorbate peroxidase (APOX) by 5.8 to 11.5, glutathione peroxidase (GP) from 3.8 to 7 times, respectively. The structure of the tissues of the roots and leaves of S. lycopersicum in the variants with BaP changed depending on the dose: it increased the intercellular space, cortical layer, and the epidermis, and the structure of the leaf tissues became looser.
Collapse
Affiliation(s)
- Marina Voloshina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Vishnu D. Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
- Correspondence: or
| | - Natalia Chernikova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Evgeniy Vechkanov
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Saglara Mandzhieva
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Mark Voloshin
- Moscow Clinical Scientific Center Named after Loginov MHD, Moscow 111123, Russia
| | - Maria Krepakova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Tamara Dudnikova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Svetlana Sushkova
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Andrey Plotnikov
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don 344090, Russia
| |
Collapse
|
7
|
Liu Y, Ren T, Xu G, Teng H, Liu B, Yu Y. Effects of micro- and nano-plastics on accumulation and toxicity of pyrene in water spinach (Ipomoea aquatica Forsk). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:956-965. [PMID: 35907066 DOI: 10.1007/s11356-022-22156-z] [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: 02/17/2022] [Accepted: 07/19/2022] [Indexed: 06/15/2023]
Abstract
Micro- and nano-plastics (MNPs) in terrestrial ecosystems are attracting increasing attentions. However, the studies of MNPs on the accumulation and migration of organic contaminants in edible plants are relatively scarce. Here, we investigated the impacts and mechanisms of MNPs of different concentrations and sizes on the uptake and toxicity of pyrene in water spinach. The results showed that MNPs had a promotion effect on the uptake of pyrene in various parts of water spinach, leading to the continuous accumulation of pyrene. The promotion effect of high concentration microplastics (MPs, 10 μm) is stronger than that of nanoplastics (NPs, 100 nm). The co-exposure of MNPs and pyrene increased the contents of malondialdehyde (MDA) in water spinach and aggravated the damage of lipid peroxidation. The co-exposure of MNPs and pyrene induced the increase of photosynthetic pigment contents and enhanced chloroplast activity. In addition, the co-exposure stimulated the overexpression of psbA and rbcL genes related to photosynthetic pigments, resulting in genotoxicity of water spinach. This study emphasized that the co-exposure of MNPs and pyrene caused harmful effects and high concentration of MPs caused greater toxicity to water spinach than NPs.
Collapse
Affiliation(s)
- Yang Liu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tong Ren
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
- College of Environmental Science and Engineering, Jilin Normal University, Siping, 136000, China
| | - Guanghui Xu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China
| | - Honghui Teng
- College of Environmental Science and Engineering, Jilin Normal University, Siping, 136000, China
| | - Baolin Liu
- College of Chemistry, Changchun Normal University, Changchun, 130032, China
| | - Yong Yu
- Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, 130102, China.
| |
Collapse
|
8
|
Yao X, Zhang J, Wang C, Wang Q, Li X, Zhang D, Wang J, Zhu L, Wang J. Toxicity of dibutyl phthalate to pakchoi (Brassica campestris L.): Evaluation through different levels of biological organization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 849:157943. [PMID: 35952877 DOI: 10.1016/j.scitotenv.2022.157943] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Dibutyl phthalate (DBP) is a typical persistent organic pollutant with a high load in the agricultural soils of vegetable crops. Currently, studies on the toxicity of DBP in vegetable crops are limited. Therefore, in this study, pakchoi (Brassica campestris L.), a typical vegetable crop, was used to evaluate the toxic effects of DBP. Pakchoi was exposed to DBP for 24 d at three doses (2, 20, and 200 mg/kg), and the phenotypic, biochemical, and molecular indicators were determined. The results revealed that DBP could reduce the emergence of pakchoi and inhibit plant height, root length, fresh weight, and leaf area. At the biochemical level, DBP exposure could reduce the content of three typical photosynthetic pigments (chlorophyll a and b and carotenoids). The effects of DBP exposure on the quality of pakchoi were primarily through reduced soluble sugar and increased proline contents. In addition, O2·- and H2O2 levels increased after DBP stress, and the corresponding antioxidant enzymes (SOD, POD, and CAT) were activated to resist oxidative damage. The dose- and time-dependent toxicities of DBP to pakchoi were demonstrated using an integrated biological response index. Finally, the molecular-level results on Day 24 showed that the three antioxidant enzyme genes (sod, pod, and cat) were significantly downregulated, and the antioxidant enzyme genes were more sensitive biomarkers than the enzyme activities. However, the expression level of enzyme genes was opposite to that of enzyme activity (SOD and POD); thus, DBP might directly interact with these enzymes. Molecular docking showed that DBP could stably bind near the SOD/POD active center through intermolecular interaction forces. This study provides essential information on the risk of DBP toxicity to vegetable crops.
Collapse
Affiliation(s)
- Xiangfeng Yao
- College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jingwen Zhang
- College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Can Wang
- College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Qian Wang
- College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xianxu Li
- College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Dexin Zhang
- Bureau of Agriculture and Rural Affairs of Changle, Weifang, Shandong 262400, PR China
| | - Jinhua Wang
- College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Lusheng Zhu
- College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jun Wang
- College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
| |
Collapse
|
9
|
Wang X, Sun J, Liu R, Zheng T, Tang Y. Plant contribution to the remediation of PAH-contaminated soil of Dagang Oilfield by Fire Phoenix. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:43126-43137. [PMID: 35091936 DOI: 10.1007/s11356-021-18230-7] [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: 08/31/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Pot experiments were conducted to evaluate plant contribution during remediation of the polycyclic aromatic hydrocarbons (PAH)-contaminated soil of Dagang Oilfield by Fire Phoenix (a mixture of Festuca L.). The results showed that Fire Phoenix could grow in soil contaminated by high and low concentrations of PAHs. After being planted for 150 days, the total removal rate of six PAHs in the high and low PAH concentrations was 80.36% and 79.79%, significantly higher than the 58.79% and 53.29% of the unplanted control group, respectively. Thus, Fire Phoenix can effectively repair the soil contaminated by different concentrations of PAHs. In high concentrations of PAHs, the results indicated a positive linear relationship between PAH absorption in tissues of Fire Phoenix and the growth time in the early stage. In contrast, the contents of PAHs were just slightly increased in the late period of plant growth. The main factor for the dissipation of PAHs was plant-promoted biodegradation (99.04%-99.93%), suggesting a low contribution of PAH uptake and transformation (0.07%-0.96%). The results revealed that Fire Phoenix did not remove the PAHs in the soil by accumulation but promoted PAH dissipation in the soil by stimulating the microbial metabolism in the rhizosphere.
Collapse
Affiliation(s)
- Xiaomei Wang
- School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang, 110179, China
| | - Jianping Sun
- School of Municipal and Environmental Engineering, Shenyang Jianzhu University, Shenyang, 110179, China
| | - Rui Liu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming, 650500, China.
| | - Tingyu Zheng
- Zhongke Dingshi Environmental Engineering Co., Ltd, Beijing, 100028, China
| | - Yingnan Tang
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China
| |
Collapse
|
10
|
Santos DD, Santos OSL, Domingos M, Rinaldi MCS. Pah levels in the soil-litter-vegetation-atmosphere system of Atlantic Forest remnants in Southeast Brazil. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:293. [PMID: 35332388 DOI: 10.1007/s10661-022-09946-1] [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: 10/27/2021] [Accepted: 03/12/2022] [Indexed: 06/14/2023]
Abstract
Although the Brazilian Atlantic Forest is a hotspot for biodiversity conservation, it is one of the most fragmented biomes in Brazil and also affected by air pollutants such as polycyclic aromatic hydrocarbons (PAHs). The study aimed at measuring the PAH levels in leaf trees, litter, soil, and atmosphere of two Atlantic Forest remnants impacted by air pollutants during summer and winter periods; identifying emission sources; and investigating the relationship among the PAH concentrations in the soil, litter, leaves, and atmosphere. Site 1 is situated in the largest South American city, with rainy summers and dry winters, and characterized by intense urbanization. Site 2 is situated in a large forest continuum and is characterized by wet climate with no defined dry seasons. It is more distant from the anthropogenic urban sources than site 1, but closer to an industrial complex. No differences were detected for PAH amounts (summer + winter) in the particles and wet deposition fluxes between sites. In site 1, the highest concentrations of PAHs in the particles were measured during the winter while in the leaf trees were measured during the summer. PMF model showed that sites 1 and 2 receive PAHs mainly from vehicle emissions and industrial activities, respectively. The accumulation of heavier compounds in soil and leaves via wet deposition was more evident in site 2. PAHs were mainly stored in the soil of site 1, contrasting with site 2, where they were retained in litter, which were attributed to disturbances of decomposer community and reduced decomposition rates.
Collapse
Affiliation(s)
| | | | - Marisa Domingos
- Instituto de Botânica, Caixa Postal, São Paulo, 68041, 04045-972, Brazil
| | - Mirian C S Rinaldi
- Instituto de Botânica, Caixa Postal, São Paulo, 68041, 04045-972, Brazil.
| |
Collapse
|
11
|
Ummara U, Noreen S, Afzal M, Zafar ZU, Akhter MS, Iqbal S, Hefft DI, Kazi M, Ahmad P. Induced systemic tolerance mediated by plant-microbe interaction in maize (Zea mays L.) plants under hydrocarbon contamination. CHEMOSPHERE 2022; 290:133327. [PMID: 34929274 DOI: 10.1016/j.chemosphere.2021.133327] [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: 10/03/2021] [Revised: 12/05/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
The present investigation was committed to examining the effect of soil spiked with diesel contamination (0, 1.5, 2.5, 3.5 g diesel kg-1 soil) on maize (Zea mays L) varieties (MMRI yellow and Pearl white) with or without bacterial consortium (Pseudomonas aeruginosa BRRI54, Acinetobacter sp. strain BRSI56, Acinetobacter sp. strain ACRH80). Seed and soil bacterial inoculation were done. The studied morphological attributes were fresh and dry weight of shoot and root of both maize varieties. The results documented that bacterial consortium caused 21%, 0.06% and 29%, 34% higher shoot and root fresh/dry weights in "Pearl white" and 14%, 15% and 32%, 22% shoot and root fresh/dry weights respectively in MMRI yellow under control conditions. The biochemical attributes of shoot and root were affected negatively by the 3.5 g diesel kg-1 soil contamination. Bacterial consortium enhanced enzymatic activity (APX, CAT, POD, SOD, GR) and non-enzymatic (AsA, GSH, Pro, α-Toco) antioxidant and reduction in oxidative stress (H2O2, MDA) under hydrocarbon stress as compared to non-inoculated ones in both root and shoot organs. Among both varieties, the highest hydrocarbon removal (75, 64, and 69%) was demonstrated by MMRI yellow with bacterial consortium as compare to Pearl white showed 73, 57, 65% hydrocarbon degradation at 1.5 2.5, 3.5 g diesel kg-1 soil contamination. Consequently, the microbe mediated biotransformation of hydrocarbons suggested that the use of PGPB would be the most beneficial selection in diesel fuel contaminated soil to overcome the abiotic stress in plants and successfully remediation of hydrocarbon in contaminated soil.
Collapse
Affiliation(s)
- Ume Ummara
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | - Sibgha Noreen
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan.
| | - Muhammad Afzal
- National Institute of Biotechnology and Genetic Engineering (NIBGE), Faisalabad, Pakistan
| | - Zafar Ullah Zafar
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Salim Akhter
- Institute of Pure and Applied Biology, Bahauddin Zakariya University, Multan, Pakistan
| | - Sehrish Iqbal
- Department of Environment Science, Bahauddin Zakariya University, Multan, Pakistan
| | - Daniel Ingo Hefft
- Department of Food Sciences, University Centre Reaseheath, Reaseheath College, Nantwich, CW5 6DF, UK.
| | - Mohsin Kazi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, PO Box 2457, Riyadh, 11451, Saudi Arabia
| | - Parvaiz Ahmad
- Department of Botany, GDC Pulwama, 192301, Jammu and Kashmir, India.
| |
Collapse
|
12
|
Effects of urban atmospheric particulate matter on higher plants using Lycopersicon esculentum as model species. SN APPLIED SCIENCES 2021. [DOI: 10.1007/s42452-021-04745-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
AbstractAtmospheric particulate matter (PM) is one of the major environmental concerns in Europe. A wide range of studies has proved the ecotoxic potential of atmospheric particles. PM exerts chemical stress on vegetation by its potentially toxic constituents; however, relatively few studies are available on assessing phytotoxic effects under laboratory conditions. In our study, aqueous extract of particulate matter was prepared and used for treatment. Experiment was following the procedure defined by the No. 227 OECD Guideline for the Testing of Chemicals: Terrestrial Plant Test. Tomato (Lycopersicon esculentum Mill.) plants were used; elucidated toxicity was assessed based on morphological and biochemical endpoints such as biomass, chlorophyll-a and chlorophyll-b, carotenoids, and protein content. Biomass reduction and protein content showed a clear dose–effect relationship; the biomass decreased in comparison with the control (100%) in all test groups (TG) at a steady rate (TG1: 87.73%; TG2: 71.77%; TG3: 67.01%; TG4: 63.63%). The tendency in protein concentrations compared to the control was TG1: 113.61%; TG2: 148.21% TG3: 160.52%; TG4: 157.31%. However, pigments showed a ‘Janus-faced’ effect: nutrient content of the sample caused slight increase at lower doses; actual toxicity became apparent only at higher doses (chlorophyll-a concentration decrease was 84.47% in TG4, chlorophyll-b was 77.17%, and finally, carotene showed 83.60% decrease in TG4).
Collapse
|
13
|
Lucadamo L, Gallo L, Corapi A. PAHs in an urban-industrial area: The role of lichen transplants in the detection of local and study area scale patterns. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 284:117136. [PMID: 33915398 DOI: 10.1016/j.envpol.2021.117136] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 04/07/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
Spatial variation of the levels of polycyclic aromatic hydrocarbons (PAHs) was evaluated within an urban-industrial district where the main anthropogenic pressures are a 15 MW biomass power plant (BPP) and road traffic. The use of a high-density lichen transplant network and wind quantitative relationships made it possible to perform a hierarchical analysis of contamination. Combined uni-bi and multivariate statistical analyses of the resulting databases revealed a dual pattern. In its surroundings (local scale), the BPP affected the bioaccumulation of fluoranthene, pyrene and total PAHs, although a confounding effect of traffic (mostly petrol/gasoline engines) was evident. Spatial variation of the rate of diesel vehicles showed a significant association with that of acenaphthylene, acenaphthene, fluorene, anthracene and naphthalene. The series of high-speed wind values suggests that wind promotes diffusion rather than dispersion of the monitored PAHs. At the whole study area scale, the BPP was a source of acenaphthylene and acenaphthene, while diesel vehicles were a source of acenaphthylene. PAHs contamination strongly promotes oxidative stress (a threefold increase vs pre-exposure levels) in lichen transplants, suggesting a marked polluting effect of anthropogenic sources especially at the expense of the mycobiont. The proposed monitoring approach could improve the apportionment of the different contributions of point and linear anthropogenic sources of PAHs, mitigating the reciprocal biases affecting their spatial patterns.
Collapse
Affiliation(s)
- L Lucadamo
- DiBEST (Department of Biology, Ecology and Earth Sciences), University of Calabria, 87036, Arcavacata di Rende, CS, Italy.
| | - L Gallo
- DiBEST (Department of Biology, Ecology and Earth Sciences), University of Calabria, 87036, Arcavacata di Rende, CS, Italy
| | - A Corapi
- DiBEST (Department of Biology, Ecology and Earth Sciences), University of Calabria, 87036, Arcavacata di Rende, CS, Italy
| |
Collapse
|
14
|
Liu S, Liu N, Lu H, Zhu L. Disturbed phospholipid metabolism by three polycyclic aromatic hydrocarbons in Oryza sativa. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 283:117073. [PMID: 33915499 DOI: 10.1016/j.envpol.2021.117073] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/28/2021] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous pollutants in soils that can be readily absorbed by crops, affecting growth and development. Phospholipids (PLs) are essential components of cell membrane and can indicate cellular responses to various organic pollutants. However, the detailed molecular mechanism of phospholipid metabolism based regulation employed by crops in response to PAHs stresses remains elusive. This study characterized the accumulation patterns of representative PAHs, namely phenanthrene (PHEN), pyrene (PY), and benzo[a]pyrene (BaP) in rice (Oryza sativa). Crop's responses to PAHs via the regulation of phospholipid metabolism were also explored. PHEN exhibited the highest accumulation in both roots and shoots, followed by PY and BaP, despite PY exhibited much greater phytotoxicity than the other two PAHs. The exposure to 10-500 μg/L PY resulted in downregulations of the phospholipase A2 genes PLA2-3, PLA2-4, and PLA2-6 (to 19% of the control without exposure) and phospholipase C genes PLC-1, PLC-2, and PLC-4 (to 50% of the control), consistent with the changes in phospholipase activity. The contents of typical PLs, including phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, and phosphatidic acid also decreased to a greater extent than those in the PHEN- and BaP-exposed groups. These were the major reasons for the relatively high phytotoxicity of PY, in terms of growth inhibition and cell membrane damage. These findings provide a more comprehensive understanding of crop responses to PAHs and provide insights into risk assessment of soil PAH contamination, which hold potentials in improving food safety and quality worldwide.
Collapse
Affiliation(s)
- Shuang Liu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang, 310058, China
| | - Na Liu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang, 310058, China
| | - Huijie Lu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China
| | - Lizhong Zhu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China; Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Hangzhou, Zhejiang, 310058, China.
| |
Collapse
|
15
|
Luo Q, Li Y, Wu Z, Wang X, Wang C, Shan Y, Sun L. Phytotoxicity of tris-(1-chloro-2-propyl) phosphate in soil and its uptake and accumulation by pakchoi (Brassica chinensis L. cv. SuZhou). CHEMOSPHERE 2021; 277:130347. [PMID: 33780681 DOI: 10.1016/j.chemosphere.2021.130347] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 03/13/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
This study investigated physiological and biochemical changes in pakchoi at different growth stages (25 and 50 d) under different tris-(1-chloro-2-propyl) phosphate (TCIPP) treatments (10, 100, 500, and 1000 μg kg-1). The uptake and accumulation of TCIPP by pakchoi and variation of TCIPP speciation in soil were also determined. TCIPP decreased the length and fresh weight of pakchoi root compared with those in blank controls, and this effect was significant when the concentration of TCIPP was higher than 100 μg kg-1. The fresh weight of pakchoi stems and leaves, the chlorophyll content, and the activities of superoxide dismutase, peroxidase, and catalase in the leaves first increased and then decreased with increasing TCIPP concentration. The inflection point of the variation in these indices was 100 μg kg-1 TCIPP in soil. The contents of proline and malondialdehyde increased continuously with increasing TCIPP concentration. The uptake of TCIPP by pakchoi increased linearly with increasing TCIPP concentration, and the highest TCIPP concentrations in the roots, stems, and leaves were 275.9, 80.0, and 2126.3 μg kg-1, respectively. TCIPP was easily transferred from the roots to leaves of pakchoi, with translocation factor of up to 12.6. The content of bioavailable TCIPP in soil was high, accounting for 46.5%. Planting pakchoi could significantly reduce the content of bioavailable TCIPP, with removal rate of 39.9%-54.1%. After 50 d of planting pakchoi, the removal rate of TCIPP in soil (10.4%-18.6%) was significantly higher than that in the control without plant, but the contribution of phytoextraction was small, accounting for 2.62%-26.6%.
Collapse
Affiliation(s)
- Qing Luo
- Key Laboratory of Regional Environment and Eco-Remediation of Ministry of Education, College of Environment, Shenyang University, Shenyang, 110044, China.
| | - Yujie Li
- Key Laboratory of Regional Environment and Eco-Remediation of Ministry of Education, College of Environment, Shenyang University, Shenyang, 110044, China
| | - Zhongping Wu
- Key Laboratory of Regional Environment and Eco-Remediation of Ministry of Education, College of Environment, Shenyang University, Shenyang, 110044, China
| | - Xiaoxu Wang
- Key Laboratory of Regional Environment and Eco-Remediation of Ministry of Education, College of Environment, Shenyang University, Shenyang, 110044, China
| | - Congcong Wang
- Key Laboratory of Regional Environment and Eco-Remediation of Ministry of Education, College of Environment, Shenyang University, Shenyang, 110044, China
| | - Yue Shan
- Key Laboratory of Regional Environment and Eco-Remediation of Ministry of Education, College of Environment, Shenyang University, Shenyang, 110044, China
| | - Lina Sun
- Key Laboratory of Regional Environment and Eco-Remediation of Ministry of Education, College of Environment, Shenyang University, Shenyang, 110044, China
| |
Collapse
|
16
|
Saeed M, Ilyas N, Arshad M, Sheeraz M, Ahmed I, Bhattacharya A. Development of a plant microbiome bioremediation system for crude oil contamination. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 2021; 9:105401. [DOI: 10.1016/j.jece.2021.105401] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
|
17
|
Jan S, Singh R, Bhardwaj R, Ahmad P, Kapoor D. Plant growth regulators: a sustainable approach to combat pesticide toxicity. 3 Biotech 2020; 10:466. [PMID: 33088662 DOI: 10.1007/s13205-020-02454-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 09/26/2020] [Indexed: 10/23/2022] Open
Abstract
Pesticides are chemical substances intended for preventing or controlling pests. These are toxic substances which contaminate soil, water bodies and vegetative crops. Excessive use of pesticides may cause destruction of biodiversity. In plants, pesticides lead to oxidative stress, inhibition of physiological and biochemical pathways, induce toxicity, impede photosynthesis and negatively affect yield of crops. Increased production of reactive oxygen species like superoxide radicals, O- 2 hydrogen peroxide, H2O2; singlet oxygen, O2; hydroxyl radical, OH-; and hydroperoxyl radical HO2-, causes damage to protein, lipid, carbohydrate and DNA within plants. Plant growth regulators (PGR) are recognized for promoting growth and development under optimal as well as stress conditions. PGR combat adverse effect by acting as chemical messenger and under complex regulation, enable plants to survive under stress conditions. PGR mediate various physiological and biochemical responses, thereby reducing pesticide-induced toxicity. Exogenous applications of PGRs, such as brassinosteroid, cytokinins, salicylic acid, jasmonic acid, etc., mitigate pesticide toxicity by stimulating antioxidant defense system and render tolerance towards stress conditions. They provide resistance against pesticides by controlling production of reactive oxygen species, nutrient homeostasis, increase secondary metabolite production, and trigger antioxidant mechanisms. These phytohormones protect plants against oxidative damage by activating mitogen-stimulated protein kinase cascade. Current study is based on reported research work that has shown the effect of PGR in promoting plant growth subjected to pesticide stress. The present review covers the aspects of pesticidal response of plants and evaluates the contribution of PGRs in mitigating pesticide-induced stress and increasing the tolerance of plants. Further, the study suggests the use of PGRs as a tool in mitigating effects of pesticidal stress together with improved growth and development.
Collapse
|
18
|
Khan K, Tareen AK, Aslam M, Khan MF, Shi Z, Ma C, Shams SS, Khatoon R, mahmood N, Zhang H, Guo Z. Synthesis, properties and novel electrocatalytic applications of the 2D-borophene Xenes. PROG SOLID STATE CH 2020. [DOI: 10.1016/j.progsolidstchem.2020.100283] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
19
|
Knock-Down the Expression of Brassinosteroid Receptor TaBRI1 Reduces Photosynthesis, Tolerance to High Light and High Temperature Stresses and Grain Yield in Wheat. PLANTS 2020; 9:plants9070840. [PMID: 32635376 PMCID: PMC7411796 DOI: 10.3390/plants9070840] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/24/2020] [Accepted: 07/01/2020] [Indexed: 12/03/2022]
Abstract
Brassinosteroid (BR)-deficient or -insensitive mutants exhibited altered plant architecture with the potential to impact yield, the underlying physiological and molecular mechanisms are still to be explored. In this study, we cloned three BR receptor homologous genes TaBRI1-A1, -B1 and -D1 from hexaploid wheat (Triticum estivum L.) and further isolated the TaBRI1-A1, TaBRI1-D1 deletion mutants from the ion beam-induced mutants of variety Xiaoyan81, TaBRI1-A1 and TaBRI1-D1 in which the expression of total receptor TaBRI1 was significantly decreased. The TaBRI1 knock-down mutants exhibited relatively erect leaves and a significant decrease in the 1000-grain weight. Further studies showed that TaBRI1 knock-down mutants showed a significant reduction in photosynthetic rate during the whole grain-filling stage. TaBRI1 knock-down plants generated by TaBRI1-A1, TaBRI1-D1 deletion or using virus-induced gene silencing exhibited the reduction in the efficiency of photosystem II (PSII) (Fv/Fm, ΦPSII and electron transport rate, ETR) especially under high light and high temperature stresses. The 24-epibrassinolide (EBR) treatment increased CO2 assimilation rate in the wild type under both normal and high light and high temperature stresses conditions, but this increasing effect was not observed in the TaBRI1 knock-down mutants. Meanwhile, the expression levels of BR biosynthetic genes including TaDWARF4, TaCPD1 and TaCPD90C1 is not decreased or decreased to a lesser extent in the TaBRI1 knock-down mutants after EBR treatment. These results suggested that TaBRI1 is required for maintaining photosynthesis and tolerance to high light and high temperature stresses both of which are important for grain yield and will be a possible engineered target to control plant photosynthesis and yields in wheat.
Collapse
|
20
|
Exogenous Brassinolide Enhances the Growth and Cold Resistance of Maize (Zea mays L.) Seedlings under Chilling Stress. AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10040488] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This paper aims to elucidate the effects of exogenous brassinolide (BL) on maize germination and seedling growth under chilling stress. The cold-resistant maize hybrid Tiannong 9 and the cold-sensitive hybrid Tianhe 1 were soaked at the germination stage (6 °C) and leaves were sprayed at seedling stage (4 °C), with BL at concentrations of 0, 0.01, 0.1, and 1 mg/L. The germination rate of the maize seeds and the changes in seedling biomass, antioxidant, photosynthetic, and plant endogenous hormone systems and chloroplast ultrastructures were determined. The results showed that the optimum concentration of BL to alleviate chilling stress in maize seedlings was 0.1 mg/L. This rate effectively increased the germination rate and plant biomass of maize and significantly increased the superoxide dismutase (SOD) peroxidase (POD) and catalase (CAT) activities, the net photosynthetic rate (Pn), stomatal conductance (gs) and transpiration rate (Tr), and seedling auxin (IAA), gibberellin (GA3) and trans zeatin nucleoside (t-ZR) contents under chilling stress. In addition, BL significantly reduced the malondialdehyde (MDA) content, abscisic acid (ABA) content, and intercellular carbon dioxide concentration (Ci). In the comparison of mesophyll cells, the chloroplast membrane of the treatment group was tightly attached to the stroma, and some of the plasma membranes were dissolved, but the overall structure of the chloroplast was relatively complete, and the osmiophilic granules were relatively few. The exogenous application of BL can effectively alleviate the damage caused by a low temperature in maize, maintain the normal characteristics of seedlings in chilling environments, and ensure the development and growth of plant tissue in the later stage.
Collapse
|
21
|
Zhong W, Xie C, Hu D, Pu S, Xiong X, Ma J, Sun L, Huang Z, Jiang M, Li X. Effect of 24-epibrassinolide on reactive oxygen species and antioxidative defense systems in tall fescue plants under lead stress. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 187:109831. [PMID: 31654868 DOI: 10.1016/j.ecoenv.2019.109831] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 10/13/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Lead is one of the most hazardous pollutants to both the environment as well as human beings. As one of the approaches to enhance phytoremediation, brassinosteroids are predicted as a potential candidate phytohormone for assisted phytoremediation. Few studies have focused on the physiological regulations of tall fescue plants (Festuca arundinacea Schreb.), a potential phytoremediation species, for its responses to applications of brassinosteroids under lead stress. Therefore, the objectives of this study were to investigate the effects of foliar application of 24-epibrassinolide, a brassinosteroids analogue, on reactive oxygen species accumulation and antioxidative defense systems of tall fescue when exposed to lead, and ultimately its potential to be used in phytoremediation. When exposed to lead (1000 mg/kg) for 80 d, decreases in shoot and root biomass of tall fescue biomass as well as chlorophyll and carotenoid productions were found. Foliar application of 24-epibrassinolide at three rates and five applications every 7 d improved the biomass of both shoots and roots, and increased the photosynthetic pigments. The improved lead tolerance in tall fescue plants after 24-epibrassinolide applications was associated with reduced H2O2 and O2.- accumulations and increased antioxidative enzyme activities including superoxide dismutase, catalase, and guaiacol peroxidase. Additionally, osmoprotectants increased and lipid peroxidation decreased. Ultimately, foliar applications of 24-epibrassinolide enhanced the lead recovery rate of tall fescue plants, proving its potential role in phytoremediation for soil contaminated with heavy metals such as lead.
Collapse
Affiliation(s)
- Woxiu Zhong
- College of Landscape Architecture, Sichuan Agricultural University, Wenjiang, Sichuan, 611130, PR China
| | - Chengcheng Xie
- College of Landscape Architecture, Sichuan Agricultural University, Wenjiang, Sichuan, 611130, PR China
| | - Dan Hu
- College of Tourism and Urban-Rural Planning, Chengdu University of Technology, No. 1, Dongsan Road, Erxianqiao, Chenghua, Sichuan, 610051, PR China.
| | - Siyi Pu
- College of Landscape Architecture, Sichuan Agricultural University, Wenjiang, Sichuan, 611130, PR China
| | - Xi Xiong
- Division of Plant Sciences, University of Missouri, Columbia, Missouri, 65211, USA
| | - Jun Ma
- College of Landscape Architecture, Sichuan Agricultural University, Wenjiang, Sichuan, 611130, PR China
| | - Lingxia Sun
- College of Landscape Architecture, Sichuan Agricultural University, Wenjiang, Sichuan, 611130, PR China
| | - Zhuo Huang
- College of Landscape Architecture, Sichuan Agricultural University, Wenjiang, Sichuan, 611130, PR China
| | - Mingyan Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Wenjiang, Sichuan, 611130, PR China
| | - Xi Li
- College of Landscape Architecture, Sichuan Agricultural University, Wenjiang, Sichuan, 611130, PR China.
| |
Collapse
|
22
|
Guan C, Wang C, Wu H, Li Q, Zhang Y, Wang G, Ji J, Jin C. Salicylic acid application alleviates the adverse effects of triclosan stress in tobacco plants through the improvement of plant photosynthesis and enhancing antioxidant system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:1359-1372. [PMID: 31749001 DOI: 10.1007/s11356-019-06863-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
Triclosan (TCS) is a chlorophenol which is highly bacteriostatic and used in a wide array of consumer products. TCS is now one of the most commonly detected organic pollutants in the sewage sludges. The sludge utilization for fertilizers on agricultural land would pose the risk of causing adverse effects on plant growth and yield by TCS. However, the toxicity of TCS toward plants is comparatively less understood. In this study, we assessed the effects of TCS on tobacco plants which were grown in MS medium or soils containing various concentrations of TCS. Our results indicated that TCS at the concentration of 2 mg/L could strongly inhibit the tobacco seed germination. TCS could suppress tobacco plant growth in soil with different concentrations (10, 20, and 50 mg/kg) of TCS through the downregulation of chlorophyll contents, restricting photosynthesis and increasing generation of reactive oxygen species (ROS). Salicylic acid (SA) plays important roles in the stress response of plants. The role of exogenous SA application in protecting tobacco plants from TCS stress was also investigated in this study. SA application could significantly increase net photosynthesis, enhance antioxidant enzyme activity, and thereby enhancing tobacco plant tolerance to TCS. Moreover, the activation of MPK3 and MPK6 induced by TCS was downregulated in plants with the treatment of SA. It was thus referred that mitogen-activated protein kinases (MAPKs) might play a key role in the signal transduction of TCS stress, and this process might be regulated by SA signaling. Overall, our results demonstrated that TCS had negative impacts on tobacco plants and SA played a protective role on tobacco plants against TCS stress.
Collapse
Affiliation(s)
- Chunfeng Guan
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Chang Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Hao Wu
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Qian Li
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Yue Zhang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Gang Wang
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Jing Ji
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China
| | - Chao Jin
- School of Environmental Science and Engineering, Tianjin University, Tianjin, 300072, People's Republic of China.
| |
Collapse
|
23
|
Lin WH. Designed Manipulation of the Brassinosteroid Signal to Enhance Crop Yield. FRONTIERS IN PLANT SCIENCE 2020; 11:854. [PMID: 32595692 PMCID: PMC7300318 DOI: 10.3389/fpls.2020.00854] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 05/27/2020] [Indexed: 05/23/2023]
Abstract
Brassinosteroid (BR), a plant steroid hormone, plays crucial role in modulating plant growth and development, which affect crop architecture and yield. However, BR application cannot highly benefit to agricultural production as expectation, because it regulates multiple processes in different tissues and leads to side effect. In addition, accurately modifying BR signal at transcriptional level is difficult. Effective manipulation of the BR signal and avoidance of side effects are required to enhance yield in different crops. Application of BR by spraying at specific developmental stages can enhance crop yield, but this method is impractical for use on a large scale. The accurate molecular design of crops would be much more helpful to manipulate the BR signal in specific organs and/or at particular developmental stages to enhance crop yield. This minireview summarizes the BR regulation of yield in different crops, especially horticultural crops, and the strategies used to regulate the BR signal to enhance crop yield. One popular strategy is to directly modulate the BR signal through modifying the functions of important components in the BR signal transduction pathway. Another strategy is to identify and modulate regulators downstream of, or in crosstalk with, the BR signal to manipulate its role in specific processes and increase crop yield. Efforts to accurately design a BR manipulation strategy will ultimately lead to effective control of the BR signal to avoid side effects and enhance crop yield.
Collapse
|
24
|
Song X, Yue X, Chen W, Jiang H, Han Y, Li X. Detection of Cadmium Risk to the Photosynthetic Performance of Hybrid Pennisetum. FRONTIERS IN PLANT SCIENCE 2019; 10:798. [PMID: 31281328 PMCID: PMC6596316 DOI: 10.3389/fpls.2019.00798] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 06/03/2019] [Indexed: 05/19/2023]
Abstract
Photosynthesis plays an essential role in plant growth and crop yield, and the mechanisms of the effects of cadmium (Cd) on photosynthetic performance require more attention. The acute toxicity of Cd in soil to the photosynthetic capacity of Hybrid Pennisetum was evaluated using gas exchange parameters, A/Ci curves, light response curves, and chlorophyll a fluorescence transients after exposure to elevated Cd concentrations (0, 10, 20, 50, 70, and 100 mg kg-1) for a 3-month period. The results indicated that leaf Cd concentration in Hybrid Pennisetum increased with the strength of soil Cd stress and ranged from 4.9 to 15.8 μg g-1 DW. The accumulation of leaf Cd severely restricted photosynthesis and its non-stomatal limitation in regulating the photosynthetic performance of Hybrid Pennisetum. The leaf chloroplasts at 10 and 20 mg kg-1 Cd concentrations showed no noticeable change, but the chlorophyll content significantly decreased by 9.0-20.4% at 50-100 mg kg-1 Cd concentrations. The Cd treatments also decreased plant ribulose-1,5-bisphosphate (RuBP) activity (Vcmax ) and regeneration capacity (Jmax ), triose phosphate utilization (TPU), light-saturated photosynthesis (Amax ), apparent quantum yield (AQY), light saturation point (LSP), and dark respiration (Rday ), but Cd treatment increased the light compensation point (LCP). The shape of chlorophyll a fluorescence transients in leaves was altered under different Cd treatments. The increased OJ phase and the decreased IP phase in fluorescence induction curves suggested that Cd toxicity inhibited both light use efficiency and photodamage avoidance ability. These results suggested that the decrease in photosynthesis through exposure to Cd may be a result of the decrease in leaf chlorophyll content, Rubisco activity, and RuBP regeneration, inhibition of triose phosphate utilization, reduction of the ability to use light and provide energy, and restrictions on electron transport in PSII.
Collapse
Affiliation(s)
- Xiliang Song
- College of Resources and Environment, Shandong Agricultural University, Tai’an, China
- Shandong Provincial Engineering and Technology Research Center for Phyto-Microremediation in Saline-Alkali Land, Shandong, China
| | - Xian Yue
- College of Resources and Environment, Shandong Agricultural University, Tai’an, China
| | - Weifeng Chen
- College of Resources and Environment, Shandong Agricultural University, Tai’an, China
- Shandong Provincial Engineering and Technology Research Center for Phyto-Microremediation in Saline-Alkali Land, Shandong, China
| | - Huixin Jiang
- Shandong Provincial Animal Husbandry General Station, Shandong Province Grass Products Quality Inspection Center, Jinan, China
| | - Yanyun Han
- College of Resources and Environment, Shandong Agricultural University, Tai’an, China
| | - Xu Li
- College of Resources and Environment, Shandong Agricultural University, Tai’an, China
| |
Collapse
|
25
|
Farzana S, Cheung SG, Zhou HC, Tam NFY. Growth and antioxidative response of two mangrove plants to interaction between aquaculture effluent and BDE-99. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 662:796-804. [PMID: 30708295 DOI: 10.1016/j.scitotenv.2019.01.263] [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] [Received: 12/01/2018] [Revised: 01/15/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
Mangroves are subject to contamination of polybrominated diphenyl ethers (PBDEs) due to waste and wastewater disposal, and aquaculture effluent (AE) from nearby aquaculture activities. However, the response of mangrove plants to these two stresses and their interaction has seldom been reported. A six-month microcosm study, planted with either Kandelia obovata (Ko) or Avicennia marina (Am), the two most dominant species in South China mangrove swamps, was conducted to investigate the effects of BDE-99, and the interactions of BDE-99 (one of the most abundant PBDE congeners) and AE on growth and physiological responses of these plants. In addition to mixed stressors, both stressors were also applied individually. Results showed that Avicennia was more tolerant to BDE-99 contamination than Kandelia, as reflected by the reduced biomass, but increased superoxide radical (O2-⁎) release and malondialdehyde (MDA) content in Kandelia. Addition of AE alleviated toxicity of BDE-99 in Kandelia by promoting biomass but lowering oxidative stress and MDA production. The hormesis model also demonstrated that the interaction between BDE-99 and AE on leaf and root MDA and O2-⁎ content in both Kandelia and Avicennia were mostly antagonistic. Activities of catalase (CAT), superoxide dismutase (SOD) and peroxidase (POD) in both leaf and root of Kandelia were reduced by BDE-99. On the contrary, BDE-99 significantly enhanced the three enzyme activities in Avicennia root at month 3. Addition of AE also significantly enhanced root CAT, POD and SOD activities, and leaf SOD in both plant species to remove excess ROS produced under BDE-99 exposure. These results indicated that the tolerance of mangrove plants to oxidative stresses depended on antioxidative enzymes that were inducible.
Collapse
Affiliation(s)
- Shazia Farzana
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Siu Gin Cheung
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Hai Chao Zhou
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Nora Fung Yee Tam
- Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China; State Key Laboratory in Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| |
Collapse
|
26
|
Setsungnern A, Treesubsuntorn C, Thiravetyan P. Exogenous 24-epibrassinolide enhanced benzene detoxification in Chlorophytum comosum via overexpression and conjugation by glutathione. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 662:805-815. [PMID: 30708296 DOI: 10.1016/j.scitotenv.2019.01.258] [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] [Received: 11/02/2018] [Revised: 01/17/2019] [Accepted: 01/17/2019] [Indexed: 06/09/2023]
Abstract
Benzene, a hydrophobic xenobiotic, induces cell damage in both humans and plants. Due to its volatilization, benzene is an airborne environmental problem. The potential of an exogenous bioactive brassinosteroid phytohormone to enhance benzene removal for phytoremediation was investigated. Chlorophytum comosum had higher brassinosteroids content under benzene stress. Plant treated with 24-epibrassinolide (EBR) removed significantly more gaseous benzene than untreated plants under both light and dark conditions at an initial benzene of 12.75 μmol in the systematic chambers (P < 0.05). Although benzene increased malondialdehyde in plant tissue, EBR-treated plants lowered this lipid peroxidation by enhancing their antioxidant content and increasing benzene detoxification-related genes expression, including ascorbic acid (AsA), homogentisate phytyltransferase (HPT), and glutathione synthethase (GS). This contributed to maintaining higher photosynthetic performances. Moreover, EBR-treated plants had higher gene expression of ferredoxin-NADP reductase (FNR) and glucose-6-phosphate 1-dehydrogenase (G6PDH), thus promoting NADPH biosynthesis to cope with benzene under light and dark conditions, respectively. Further, higher glutathione biosynthesis promoted more glutathione conjugate of benzene products including S-phenylcysteine (SPC) in EBR-treated plants. Hence, application of exogenous EBR as foliar spray provided for enhanced benzene detoxification via antioxidant content, benzene detoxification-related genes and benzene conjugation products with glutathione (GSH) and consequently greater gaseous benzene removal.
Collapse
Affiliation(s)
- Arnon Setsungnern
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Chairat Treesubsuntorn
- Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Paitip Thiravetyan
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand.
| |
Collapse
|
27
|
Huang Y, Song Y, Huang J, Xi Y, Johnson D, Liu H. Selenium alleviates phytotoxicity of phenanthrene and pyrene in Alternanthera Philoxeroides. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 20:1438-1445. [PMID: 30652508 DOI: 10.1080/15226514.2018.1501335] [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: 06/09/2023]
Abstract
To investigate if selenium can alleviate phytotoxicity of phenanthrene and pyrene, two high molecular weight (HMW) PAHs (polycyclic aromatic hydrocarbons) in Alternanthera philoxeroides are considered. A 60-day pot-culture experiment was carried out to assess the effects of selenium (0.5 mg Se·kg-1 soil) on A. philoxeroides exposed to two PAH pollutants, pyrene (PYR) and phenanthrene (PHE), at levels of 10, 100, and 1000 mg·kg-1. The test index included growth, chlorophyl, gas exchange and chlorophyl fluorescence parameters, and indicators of oxidative stress (H2O2 and malondialdehyde MDA). The response of plants to PAH exposure was concentration dependent; indicators of plant health declined, while indicators of plant stress rose. The maximum values of H2O2 and MDA were recorded at 1000 mg·kg-1 PYR, followed by 1000 mg·kg-1 PHE. However, application of Se (0.5 mg·kg-1) to the soil significantly decreased the phytotoxic response to PAH exposure. This study demonstrated that Se increases the tolerance of A. philoxeroides to PYR and PHE, improving the feasibility of phytoremediating high level PAH contamination and expediting ecological restoration.
Collapse
Affiliation(s)
- Yingping Huang
- a College of Hydraulic & Environmental Engineering , China Three Gorges University , Hubei Yichang , PR China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Yichang , PR China
| | - Yizhi Song
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Yichang , PR China
- c College of Biological and Pharmaceutical Sciences , China Three Gorges University , Yichang , PR China
| | - Jueying Huang
- a College of Hydraulic & Environmental Engineering , China Three Gorges University , Hubei Yichang , PR China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Yichang , PR China
| | - Ying Xi
- a College of Hydraulic & Environmental Engineering , China Three Gorges University , Hubei Yichang , PR China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Yichang , PR China
| | - David Johnson
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Yichang , PR China
| | - Huigang Liu
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education , China Three Gorges University , Yichang , PR China
| |
Collapse
|
28
|
Huang Y, Xi Y, Gan L, Johnson D, Wu Y, Ren D, Liu H. Effects of lead and cadmium on photosynthesis in Amaranthus spinosus and assessment of phytoremediation potential. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2019; 21:1041-1049. [PMID: 31020865 DOI: 10.1080/15226514.2019.1594686] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
This study assessed the effects of Pb (0, 200, 500, 1000 mg kg-1) and Cd (0, 5, 15, 30, 50 mg kg-1) on photosynthesis in Amaranthus spinosus (A. spinosus), as well as the potential for phytoremediation by pot-culture experiment. Exposure to Pb/Cd produced a concentration-dependent decrease in biomass and all photosynthesis parameters, except for non-photochemical quenching, which increased with the metal concentration. The metals accumulated more in roots compared to shoots. The bioconcentration factor (BCF) of Pb was <1 in shoots at all Pb levels, whereas the BCF was <1 in roots at all but the lowest concentration of Pb. Roots extracted Cd from soil at all treatments. The translocation factor of Cd was larger than that of Pb suggesting that Cd is more mobile than Pb in A. spinosus. Amaranthus spinosus displays a high tolerance for both Pb and Cd with regards to growth and photochemical efficiency, but it is more sensitive to Cd than Pb. Amaranthus spinosus accumulates Pb and Cd primarily in the roots and Cd is more bioconcentrated and translocated in comparison to Pb. This investigation shows that A. spinosus has good potential for phytoremediation of soils contaminated by low levels of Cd and Pb.
Collapse
Affiliation(s)
- Yingping Huang
- a College of Hydraulic and Environmental Engineering, China Three Gorges University , Hubei , Yichang P R China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University , Hubei , Yichang , P R China
- c Farmland Environment Monitoring Engineering Technology Center in Hubei, China Three Gorges University , Hubei , Yichang , P R China
| | - Ying Xi
- a College of Hydraulic and Environmental Engineering, China Three Gorges University , Hubei , Yichang P R China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University , Hubei , Yichang , P R China
- c Farmland Environment Monitoring Engineering Technology Center in Hubei, China Three Gorges University , Hubei , Yichang , P R China
| | - Long Gan
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University , Hubei , Yichang , P R China
- c Farmland Environment Monitoring Engineering Technology Center in Hubei, China Three Gorges University , Hubei , Yichang , P R China
| | - David Johnson
- a College of Hydraulic and Environmental Engineering, China Three Gorges University , Hubei , Yichang P R China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University , Hubei , Yichang , P R China
- c Farmland Environment Monitoring Engineering Technology Center in Hubei, China Three Gorges University , Hubei , Yichang , P R China
| | - Yonghong Wu
- a College of Hydraulic and Environmental Engineering, China Three Gorges University , Hubei , Yichang P R China
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University , Hubei , Yichang , P R China
| | - Dong Ren
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University , Hubei , Yichang , P R China
- c Farmland Environment Monitoring Engineering Technology Center in Hubei, China Three Gorges University , Hubei , Yichang , P R China
| | - Huigang Liu
- b Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University , Hubei , Yichang , P R China
- c Farmland Environment Monitoring Engineering Technology Center in Hubei, China Three Gorges University , Hubei , Yichang , P R China
| |
Collapse
|
29
|
Zu SH, Jiang YT, Hu LQ, Zhang YJ, Chang JH, Xue HW, Lin WH. Effective Modulating Brassinosteroids Signal to Study Their Specific Regulation of Reproductive Development and Enhance Yield. FRONTIERS IN PLANT SCIENCE 2019; 10:980. [PMID: 31404166 PMCID: PMC6676975 DOI: 10.3389/fpls.2019.00980] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/11/2019] [Indexed: 05/02/2023]
Abstract
Brassinosteroid (BR) is a family of bioactive steroid hormones that plays vital roles in plant growth and development. The BR-mediated regulation of plant growth and architecture has been well studied. However, relatively few studies have investigated the BR-related regulation of reproductive development because of the difficulties in excluding non-specific regulation and secondary responses from severe vegetative phenotypes and poor nutritional status. Furthermore, differentially regulating the BR signal in vegetative and reproductive organs is problematic. Thus, establishing a method for modulating the BR signal only in reproductive organs or during reproductive developmental stages will be beneficial. Additionally, the utility of BR applications for crop production is limited because of deleterious side-effects, including the associated decrease in the planting density and lodging resistance. Moreover, enhancing the BR signal may lead to feedback inhibition. In this study, we developed a transformation system for modulating the BR signal differentially during reproductive and vegetative developmental stages. This system involves transformations with different combinations of a reproductive tissue-specific promoter, coding sequences that increase or decrease the BR signal, and various genotypic backgrounds with enhanced or decreased BR signals. The enhanced BR signal generated in transformants was targeted to reproductive organs without affecting vegetative organs. This system may be useful for studying the BR-specific regulation of plant reproductive development and shows promise for optimizing seed yield.
Collapse
Affiliation(s)
- Song-Hao Zu
- School of Life Sciences and Biotechnology, The Joint International Research Laboratory of Metabolic and Developmental Sciences, Shanghai Jiao Tong University, Shanghai, China
| | - Yu-Tong Jiang
- School of Life Sciences and Biotechnology, The Joint International Research Laboratory of Metabolic and Developmental Sciences, Shanghai Jiao Tong University, Shanghai, China
| | - Li-Qin Hu
- School of Life Sciences and Biotechnology, The Joint International Research Laboratory of Metabolic and Developmental Sciences, Shanghai Jiao Tong University, Shanghai, China
| | - Yan-Jie Zhang
- School of Life Sciences and Biotechnology, The Joint International Research Laboratory of Metabolic and Developmental Sciences, Shanghai Jiao Tong University, Shanghai, China
| | - Jin-Hui Chang
- School of Life Sciences and Biotechnology, The Joint International Research Laboratory of Metabolic and Developmental Sciences, Shanghai Jiao Tong University, Shanghai, China
| | - Hong-Wei Xue
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Wen-Hui Lin
- School of Life Sciences and Biotechnology, The Joint International Research Laboratory of Metabolic and Developmental Sciences, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Wen-Hui Lin,
| |
Collapse
|
30
|
Guedes FADF, Rossetto PDB, Guimarães F, Wilwerth MW, Paes JES, Nicolás MF, Reinert F, Peixoto RS, Alves-Ferreira M. Characterization of Laguncularia racemosa transcriptome and molecular response to oil pollution. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 205:36-50. [PMID: 30317019 DOI: 10.1016/j.aquatox.2018.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 09/06/2018] [Accepted: 09/06/2018] [Indexed: 06/08/2023]
Abstract
Mangroves are ecosystems of economic and ecological importance. Laguncularia racemosa (Combretaceae), popularly known as white mangrove, is a species that greatly contributes to the community structure of neotropical and West African mangrove forests. Despite the significance of these ecosystems, they have been destroyed by oil spills that can cause yellowing of leaves, increased sensitivity to other stresses and death of trees. However, the molecular response of plants to oil stress is poorly known. In this work, Illumina reads were de novo assembled into 46,944 transcripts of L. racemosa roots and leaves, including putative isoform variants. In addition to improving the genomic information available for mangroves, the L. racemosa assembled transcriptome allowed us to identify reference genes to normalize quantitative real-time PCR (qPCR) expression data from oil-stressed mangrove plants, which were used in RNASeq validation. The analysis of expression changes induced by the oil exposure revealed 310 and 286 responsive transcripts of leaves and roots, respectively, mainly up-regulated. Enriched GO categories related to chloroplasts and photosynthesis were found among both leaf and root oil-responsive transcripts, while "response to heat" and "response to hypoxia" were exclusively enriched in leaves and roots, respectively. The comparison of L. racemosa 12-h-oil-stressed leaf expression profile to previous Arabidopsis heat-stress studies and co-expression evidence also pointed to similarities between the heat and oil responses, in which the HSP-coding genes seem to play a key role. A subset of the L. racemosa oil-responsive root genes exhibited similar up-regulation profiles to their Arabidopsis homologs involved in hypoxia responses, including the HRA1 and LBD41 TF-coding genes. Genes linked to the ethylene pathway such as those coding for ERF TFs were also modulated during the L. racemosa root response to oil stress. Taken together, these results show that oil contamination affects photosynthesis, protein metabolism, hypoxia response and the ethylene pathway in L. racemosa 12-h-oil-exposed leaves and roots.
Collapse
Affiliation(s)
- Fernanda Alves de Freitas Guedes
- Laboratório de Genética Molecular e Biotecnologia Vegetal, CCS Cidade Universitária, UFRJ - Av. Prof. Rodolpho Paulo Rocco, s/n, Bloco A, 21941-617, Rio de Janeiro, RJ, Brazil.
| | - Priscilla de Barros Rossetto
- Laboratório de Genética Molecular e Biotecnologia Vegetal, CCS Cidade Universitária, UFRJ - Av. Prof. Rodolpho Paulo Rocco, s/n, Bloco A, 21941-617, Rio de Janeiro, RJ, Brazil.
| | - Fábia Guimarães
- Laboratório de Genética Molecular e Biotecnologia Vegetal, CCS Cidade Universitária, UFRJ - Av. Prof. Rodolpho Paulo Rocco, s/n, Bloco A, 21941-617, Rio de Janeiro, RJ, Brazil.
| | - Maurício Wolf Wilwerth
- Laboratório de Genética Molecular e Biotecnologia Vegetal, CCS Cidade Universitária, UFRJ - Av. Prof. Rodolpho Paulo Rocco, s/n, Bloco A, 21941-617, Rio de Janeiro, RJ, Brazil.
| | - Jorge Eduardo Santos Paes
- Centro de Pesquisa e Desenvolvimento Leopoldo Américo Miguez de Mello, PETROBRAS/CENPES, Cidade Universitária, Av. Horácio de Macedo, nº 950, 21941-915, Rio de Janeiro, RJ, Brazil.
| | - Marisa Fabiana Nicolás
- Laboratório Nacional de Computação Científica, Av. Getúlio Vargas, n(o)333 - Quitandinha, 25651-075, Petrópolis, RJ, Brazil.
| | - Fernanda Reinert
- Laboratório de Ecofisiologia Vegetal, CCS Cidade Universitária, UFRJ - Av. Prof. Rodolpho Paulo Rocco, s/n, Bloco A, 21941-617, Rio de Janeiro, RJ, Brazil.
| | - Raquel Silva Peixoto
- Laboratório de Ecologia Microbiana Molecular, CCS Cidade Universitária, UFRJ - Av. Prof. Rodolpho Paulo Rocco, s/n, Bloco K, 21941-617, Rio de Janeiro, RJ, Brazil.
| | - Márcio Alves-Ferreira
- Laboratório de Genética Molecular e Biotecnologia Vegetal, CCS Cidade Universitária, UFRJ - Av. Prof. Rodolpho Paulo Rocco, s/n, Bloco A, 21941-617, Rio de Janeiro, RJ, Brazil.
| |
Collapse
|
31
|
Xi Y, Song Y, Johnson DM, Li M, Liu H, Huang Y. Se enhanced phytoremediation of diesel in soil by Trifolium repens. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 154:137-144. [PMID: 29459163 DOI: 10.1016/j.ecoenv.2018.01.061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 05/16/2023]
Abstract
A pot-culture experiment was conducted to assess the effects of selenium (Se) (0.5 mg kg-1) on Trifolium repens exposed to various levels of diesel (0, 15, 20, 25 g kg-1) for 30 days and 60 days. Exposure to diesel for 60 day led to concentration-dependent decreases in root morphogenesis, chlorophyll content and CAT activity, and to dose-dependent increases in MDA content and SOD activity. The residual diesel concentration in soil increased and the removal efficiency decreased with soil diesel concentration. The chlorophyll content and residual diesel concentration after were slightly higher at 30 days than at 60days. Application of Se to soil increased Trifolium repens tolerance to diesel and significantly increased the phytoremediation effect at 60 days, with a removal rate of 36 ± 8%, compared to 28 ± 7% in the control. These results contribute to the ongoing effort to develop an effective phytoremediation system for soils highly contaminated by diesel.
Collapse
Affiliation(s)
- Ying Xi
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Daxue Road 8#, Yichang 443002, PR China
| | - Yizhi Song
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Daxue Road 8#, Yichang 443002, PR China
| | - David M Johnson
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Daxue Road 8#, Yichang 443002, PR China
| | - Meng Li
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Daxue Road 8#, Yichang 443002, PR China
| | - Huigang Liu
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Daxue Road 8#, Yichang 443002, PR China.
| | - Yingping Huang
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Daxue Road 8#, Yichang 443002, PR China.
| |
Collapse
|
32
|
Shahzad B, Tanveer M, Che Z, Rehman A, Cheema SA, Sharma A, Song H, Rehman SU, Zhaorong D. Role of 24-epibrassinolide (EBL) in mediating heavy metal and pesticide induced oxidative stress in plants: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 147:935-944. [PMID: 29029379 DOI: 10.1016/j.ecoenv.2017.09.066] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/20/2017] [Accepted: 09/26/2017] [Indexed: 05/18/2023]
Abstract
Industrialization and urbanization have posed serious threats to the environment. Excessive release of heavy metals from industrial effluents and overuse of pesticides in modern agriculture are limiting crop production by polluting environment and deteriorating food quality. Sustaining food quality under heavy metals and pesticide stress is crucial to meet the increasing demands for food. 24-Epibrassinolide (EBL), a ubiquitously occurring plant growth hormone shows great potential to alleviate heavy metals and pesticide stress in plants. This review sums up the potential role of EBL in ameliorating heavy metals and pesticide toxicity in plants extensively. EBL application increases plant's overall growth, biomass accumulation and photosynthetic efficiency by the modulation of numerous biochemical and physiological processes under heavy metals and pesticide stress. In addition, EBL scavenges reactive oxygen species (ROS) by triggering the production of antioxidant enzymes such as SOD, CAT, POX etc. EBL also induces the production of proline and soluble proteins that helps in maintaining osmotic potential and osmo-protection under both heavy metals and pesticide stress. At the end, future needs of research about the application of 24-epibrassinolide have also been discussed.
Collapse
Affiliation(s)
- Babar Shahzad
- School of Land and Food, University of Tasmania, Hobart, Tasmania, Australia.
| | - Mohsin Tanveer
- School of Land and Food, University of Tasmania, Hobart, Tasmania, Australia
| | - Zhao Che
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Abdul Rehman
- Department of Agronomy, University of Agriculture Faisalabad, Pakistan
| | | | - Anket Sharma
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - He Song
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| | - Shams Ur Rehman
- National Maize Key Laboratory, Department of Crop Biotechnology, School of Life Sciences, Hefei 230036, China
| | - Dong Zhaorong
- School of Agronomy, Anhui Agricultural University, Hefei 230036, China
| |
Collapse
|
33
|
Modifications of morphological and anatomical characteristics of plants by application of brassinosteroids under various abiotic stress conditions - A review. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.plgene.2017.06.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
34
|
Huang Y, Huang J, Song Y, Liu H. Use of selenium to alleviate naphthalene induced oxidative stress in Trifolium repens L. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 143:1-5. [PMID: 28482175 DOI: 10.1016/j.ecoenv.2017.05.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 04/25/2017] [Accepted: 05/02/2017] [Indexed: 06/07/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are among the most dangerous of environmental contaminants, due to their toxicity, carcinogenicity and mutagenicity. This study investigated the use of selenium (Se) to protect plants from the toxic effects of naphthalene (NPH). Exposing Trifolium repens L. (white clover) to a high concentration of NPH (soil spiked to 500mgkg-1) for 60 d significantly decreased biomass, CO2 assimilation rate (Pn), stomatal conductance (Gs) and intercellular CO2 concentration (Ci), while inducing production of H2O2 and malondialdehyde (MDA). Application of Se (soil spiked to 0.5mgkg-1) to plants exposed to NPH clearly protected the plants; biomass, Pn, Gs and Ci were significantly higher and contents of MDA and H2O2 decreased. The protection provided to Trifolium repens L. by Se is attributed primarily to an increase in photosynthesis and a decrease in oxidative stress. This study demonstrates that a low concentration of Se protects plants against oxidative stress induced by NPH and can provide a means for improving phytoremediation in PAHs contaminated soils.
Collapse
Affiliation(s)
- Yingping Huang
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, PR China.
| | - Jueying Huang
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, PR China
| | - Yizhi Song
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, PR China
| | - Huigang Liu
- Engineering Research Center of Eco-environment in Three Gorges Reservoir Region, Ministry of Education, China Three Gorges University, Yichang 443002, PR China.
| |
Collapse
|
35
|
Khan TA, Fariduddin Q, Yusuf M. Low-temperature stress: is phytohormones application a remedy? ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:21574-21590. [PMID: 28831664 DOI: 10.1007/s11356-017-9948-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 08/11/2017] [Indexed: 05/11/2023]
Abstract
Among the various abiotic stresses, low temperature is one of the major environmental constraints that limit the plant development and crop productivity. Plants are able to adapt to low-temperature stress through the changes in membrane composition and activation of reactive oxygen scavenging systems. The genetic pathway induced due to temperature downshift is based on C-repeat-binding factors (CBF) which activate promoters through the C-repeat (CRT) cis-element. Calcium entry is a major signalling event occurring immediately after a downshift in temperature. The increase in the level of cytosolic calcium activates many enzymes, such as phospholipases and calcium dependent-protein kinases. MAP-kinase module has been shown to be involved in the cold response. Ultimately, the activation of these signalling pathways leads to changes in the transcriptome. Several phytohormones, such as abscisic acid, brassinosteroids, auxin, salicylic acid, gibberellic acid, cytokinins and jasmonic acid, have been shown to play key roles in regulating the plant development under low-temperature stress. These phytohormones modulate important events involved in tolerance to low-temperature stress in plants. Better understanding of these events and genes controlling these could open new strategies for improving tolerance mediated by phytohormones.
Collapse
Affiliation(s)
- Tanveer Alam Khan
- Plant Physiology and Biochemistry Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| | - Qazi Fariduddin
- Plant Physiology and Biochemistry Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India.
| | - Mohammad Yusuf
- Plant Physiology and Biochemistry Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| |
Collapse
|
36
|
Zelko I, Ouvrard S, Sirguey C. Roots alterations in presence of phenanthrene may limit co-remediation implementation with Noccaea caerulescens. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:19653-19661. [PMID: 28681304 DOI: 10.1007/s11356-017-9592-2] [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: 02/07/2017] [Accepted: 06/20/2017] [Indexed: 06/07/2023]
Abstract
Co-phytoremediation of both trace elements and polycyclic aromatic hydrocarbons (PAH) is an emerging technique to treat multi-contaminated soils. In this study, root morphological and structural features of the heavy metal hyperaccumulator Noccaea caerulescens, exposed to a model PAH phenanthrene (PHE) in combination with cadmium (Cd), were observed. In vitro cultivated seedlings were exposed to 2 mM of PHE and/or 5 μM of Cd for 1 week. Co-phytoremediation effectiveness appeared restricted because of a serious inhibition (about 40%) of root and shoot biomass production in presence of PHE, while Cd had no significant adverse effect on these parameters. The most striking effects of PHE on roots were a decreased average root diameter, the inhibition of cell and root hair elongation and the promotion of lateral root formation. Moreover, endodermal cells with suberin lamellae appeared closer to the root apex when exposed to PHE compared to control and Cd treatments, possibly due to modified lateral root formation. The stage with well-developed suberin lamellae was not influenced by PHE whereas peri-endodermal layer development was impaired in PHE-treated plants. Many of these symptoms were similar to a water-deficit response. These morphological and structural root modifications in response to PHE exposition might in turn limit Cd phytoextraction by N. caerulescens in co-contaminated soils.
Collapse
Affiliation(s)
- Ivan Zelko
- Laboratoire Sols et Environnement, UMR 1120, Université de Lorraine, Vandoeuvre-lès-, 54518, Nancy, France
- INRA, Laboratoire Sols et Environnement, UMR 1120, 2 avenue de la Forêt de Haye-TSA 40602-, 54518, Vandoeuvre-lès-Nancy Cedex, France
- Slovak Academy of Sciences, Institute of Chemistry, Dúbravská cesta 9, Bratislava, SK, 845 38, Slovak Republic
| | - Stéphanie Ouvrard
- Laboratoire Sols et Environnement, UMR 1120, Université de Lorraine, Vandoeuvre-lès-, 54518, Nancy, France
- INRA, Laboratoire Sols et Environnement, UMR 1120, 2 avenue de la Forêt de Haye-TSA 40602-, 54518, Vandoeuvre-lès-Nancy Cedex, France
| | - Catherine Sirguey
- Laboratoire Sols et Environnement, UMR 1120, Université de Lorraine, Vandoeuvre-lès-, 54518, Nancy, France.
- INRA, Laboratoire Sols et Environnement, UMR 1120, 2 avenue de la Forêt de Haye-TSA 40602-, 54518, Vandoeuvre-lès-Nancy Cedex, France.
| |
Collapse
|
37
|
Kováts N, Horváth E, Eck-Varanka B, Csajbók E, Hoffer A. Adapting the Vegetative Vigour Terrestrial Plant Test for assessing ecotoxicity of aerosol samples. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:15291-15298. [PMID: 28502046 DOI: 10.1007/s11356-017-9103-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Accepted: 04/24/2017] [Indexed: 05/26/2023]
Abstract
Plants, being recognized to show high sensitivity to air pollution, have been long used to assess the ecological effects of airborne contaminants. However, many changes in vegetation are now generally attributed to atmospheric deposition of aerosol particles; the dose-effect relationships of this process are usually poorly known. In contrast to bioindication studies, ecotoxicological tests (or bioassays) are controlled and reproducible where ecological responses are determined quantitatively. In our study, the No. 227 OECD Guideline for the Testing of Chemicals: Terrestrial Plant Test: Vegetative Vigour Test (hereinafter referred to as 'Guideline') was adapted and its applicability for assessing the ecotoxicity of water-soluble aerosol compounds of aerosol samples was evaluated. In the aqueous extract of the sample, concentration of metals, benzenes, aliphatic hydrocarbons and PAHs was determined analytically. Cucumis sativus L. plants were sprayed with the aqueous extract of urban aerosol samples collected in a winter sampling campaign in Budapest. After the termination of the test, on day 22, the following endpoints were measured: fresh weight, shoot length and visible symptoms. The higher concentrations applied caused leaf necrosis due to toxic compounds found in the extract. On the other hand, the extract elucidated stimulatory effect at low concentration on both fresh weight and shoot length. The test protocol, based on the Guideline, seems sensitive enough to assess the phytotoxicity of aqueous extract of aerosol and to establish clear cause-effect relationship.
Collapse
Affiliation(s)
- Nora Kováts
- Institute of Environmental Sciences, University of Pannonia, Egyetem str. 10, Veszprém, 8200, Hungary.
| | - Eszter Horváth
- Institute of Environmental Sciences, University of Pannonia, Egyetem str. 10, Veszprém, 8200, Hungary
| | - Bettina Eck-Varanka
- Institute of Environmental Sciences, University of Pannonia, Egyetem str. 10, Veszprém, 8200, Hungary
| | - Eszter Csajbók
- Institute of Environmental Sciences, University of Pannonia, Egyetem str. 10, Veszprém, 8200, Hungary
| | - András Hoffer
- Institute of Environmental Sciences, University of Pannonia, Egyetem str. 10, Veszprém, 8200, Hungary
| |
Collapse
|
38
|
Hernández-Vega JC, Cady B, Kayanja G, Mauriello A, Cervantes N, Gillespie A, Lavia L, Trujillo J, Alkio M, Colón-Carmona A. Detoxification of polycyclic aromatic hydrocarbons (PAHs) in Arabidopsis thaliana involves a putative flavonol synthase. JOURNAL OF HAZARDOUS MATERIALS 2017; 321:268-280. [PMID: 27637093 PMCID: PMC5373802 DOI: 10.1016/j.jhazmat.2016.08.058] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 08/18/2016] [Accepted: 08/23/2016] [Indexed: 05/22/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are environmental contaminants with cytotoxic, teratogenic and carcinogenic properties. Bioremediation studies with bacteria have led to the identification of dioxygenases (DOXs) in the first step to degrade these recalcitrant compounds. In this study, we characterized the role of the Arabidopsis thaliana AT5G05600, a putative DOX of the flavonol synthase family, in the transformation of PAHs. Phenotypic analysis of loss-of-function mutant lines showed that these plant lines were less sensitive to the toxic effects of phenanthrene, suggesting possible roles of this gene in PAH degradation in vivo. Interestingly, these mutant lines showed less accumulation of H2O2 after PAH exposure. Transgenic lines over-expressing At5g05600 showed a hypersensitive response and more oxidative stress after phenanthrene treatments. Moreover, fluorescence spectra results of biochemical assays with the recombinant His-tagged protein AT5G05600 detected chemical modifications of phenanthrene. Taken together, these results support the hypothesis that AT5G05600 is involved in the catabolism of PAHs and the accumulation of toxic intermediates during PAH biotransformation in plants. This research represents the first step in the design of transgenic plants with the potential to degrade PAHs, leading to the development of vigorous plant varieties that can reduce the levels of these pollutants in the environment.
Collapse
Affiliation(s)
- Juan C Hernández-Vega
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Brian Cady
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Gilbert Kayanja
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Anthony Mauriello
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Natalie Cervantes
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Andrea Gillespie
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Lisa Lavia
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | - Joshua Trujillo
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA
| | | | - Adán Colón-Carmona
- Department of Biology, University of Massachusetts Boston, 100 Morrissey Blvd., Boston, MA 02125, USA.
| |
Collapse
|
39
|
Nie S, Huang S, Wang S, Cheng D, Liu J, Lv S, Li Q, Wang X. Enhancing Brassinosteroid Signaling via Overexpression of Tomato ( Solanum lycopersicum) SlBRI1 Improves Major Agronomic Traits. FRONTIERS IN PLANT SCIENCE 2017; 8:1386. [PMID: 28848587 PMCID: PMC5554372 DOI: 10.3389/fpls.2017.01386] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/25/2017] [Indexed: 05/18/2023]
Abstract
Brassinosteroids (BRs) play important roles in plant growth, development, and stress responses through the receptor, Brassinosteroid-insensitive 1 (BRI1), which perceives BRs and initiates BR signaling. There is considerable potential agricultural value in regulating BR signaling in crops. In this study, we investigated the effects of overexpressing the tomato (Solanum lycopersicum) BRI1 gene, SlBRI1, on major agronomic traits, such as seed germination, vegetative growth, fruit ethylene production, carotenoid accumulation, yield, and quality attributes. SlBRI1 overexpression enhanced the endogenous BR signaling intensity thereby increasing the seed germination rate, lateral root number, hypocotyl length, CO2 assimilation, plant height, and flower size. The transgenic plants also showed an increase in fruit yield and fruit number per plant, although the mean weight of individual fruit was reduced, compared with wild type. SlBRI1 overexpression also promoted fruit ripening and ethylene production, and caused an increase in levels of carotenoids, ascorbic acid, soluble solids, and soluble sugars during fruit ripening. An increased BR signaling intensity mediated by SlBRI1 overexpression was therefore positively correlated with carotenoid accumulation and fruit nutritional quality. Our results indicate that enhancing BR signaling by overexpression of SlBRI1 in tomato has the potential to improve multiple major agronomic traits.
Collapse
Affiliation(s)
- Shuming Nie
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F UniversityYangling, China
- Qinghai Key Laboratory of Vegetable Genetics and PhysiologyXining, China
| | - Shuhua Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F UniversityYangling, China
| | - Shufen Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F UniversityYangling, China
| | - Dandan Cheng
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F UniversityYangling, China
| | - Jianwei Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F UniversityYangling, China
| | - Siqi Lv
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F UniversityYangling, China
| | - Qi Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F UniversityYangling, China
| | - Xiaofeng Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Horticulture, Northwest A&F UniversityYangling, China
- *Correspondence: Xiaofeng Wang,
| |
Collapse
|
40
|
Dupuy J, Leglize P, Vincent Q, Zelko I, Mustin C, Ouvrard S, Sterckeman T. Effect and localization of phenanthrene in maize roots. CHEMOSPHERE 2016; 149:130-136. [PMID: 26855216 DOI: 10.1016/j.chemosphere.2016.01.102] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Revised: 01/21/2016] [Accepted: 01/24/2016] [Indexed: 06/05/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) have a toxic effect on plants, which limits the efficiency of phytomanagement of contaminated soils. The mechanisms underlying their toxicity are not fully understood. A cultivation experiment was carried out with maize, used as model plant, exposed to sand spiked with phenanthrene (50 or 150 mg kg(-1) dw). Epi-fluorescence microscopic observation of root sections was used to assess suberization of exodermis and endodermis and phenanthrene localization along the primary root length. For 10 days of cultivation, exodermis and endodermis suberization of exposed maize was more extensive. However, after 20 days of exposure, exodermis and endodermis of non-exposed roots were totally suberized, whilst PHE-exposed roots where less suberized. Early extensive suberization may act as barrier against PHE penetration, however longer exposure inhibits root maturation. Phenanthrene patches were located only near suberized exodermis and endodermis, which may therefore act as retention zones, where the hydrophobic phenanthrene accumulates during its radial transport.
Collapse
Affiliation(s)
- Joan Dupuy
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France
| | - Pierre Leglize
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France.
| | - Quentin Vincent
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France
| | - Ivan Zelko
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France; Institute of Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, Bratislava, SK-845 38, Slovak Republic
| | - Christian Mustin
- Université de Lorraine, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Vandœuvre-lès-Nancy, F-54506, France; CNRS, Laboratoire Interdisciplinaire des Environnements Continentaux, UMR 7360, Vandœuvre-lès-Nancy, F-54506, France
| | - Stéphanie Ouvrard
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France
| | - Thibault Sterckeman
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy, F-54518, France
| |
Collapse
|
41
|
Sharifi M, Khoshgoftarmanesh AH, Hadadzadeh H. Changes in the chemical properties and swelling coefficient of alfalfa root cell walls in the presence of toluene as a toxic agent. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:7022-7031. [PMID: 26728292 DOI: 10.1007/s11356-015-6008-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 12/22/2015] [Indexed: 06/05/2023]
Abstract
The influence of toluene pollution on the chemical properties and swelling coefficient of root cell walls in alfalfa (Medicago sativa L.) was investigated. Two sets of alfalfa seedlings were selected and one set was treated with 450 mg L(-1) toluene in the nutrient solution under hydroponic culture. Thirty days after treatment with toluene, alfalfa plants were harvested and the root cell walls were isolated. Fourier-transform infrared (FTIR) spectroscopy was carried out for the characterization of the root cell walls composition. The cation exchange capacity (CEC) and the swelling coefficient of the root cell walls (Kcw) were estimated at various pH values. The toluene contamination significantly reduced the mass of the cell wall material in the alfalfa roots. According to the FTIR spectra, the toluene pollution can change the alfalfa root cell wall properties by reducing the cell wall functional groups. These functional groups are probably related to the proteins and polysaccharides in the cell wall. Also, toluene pollution strongly reduced CEC and Kcw of the root cell walls. The results show that the decrease in the active sites of adsorption on the root cell walls as a response to toluene pollution can affect the water flow rate and the mineral nutrients uptake by roots.
Collapse
Affiliation(s)
- M Sharifi
- Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran
| | - A H Khoshgoftarmanesh
- Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84156-83111, Isfahan, Iran.
| | - H Hadadzadeh
- Department of Chemistry, Isfahan University of Technology, 84156-83111, Isfahan, Iran
| |
Collapse
|
42
|
Zhao HM, Du H, Xiang L, Li YW, Li H, Cai QY, Mo CH, Cao G, Wong MH. Physiological differences in response to di-n-butyl phthalate (DBP) exposure between low- and high-DBP accumulating cultivars of Chinese flowering cabbage (Brassica parachinensis L.). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 208:840-849. [PMID: 26608873 DOI: 10.1016/j.envpol.2015.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 11/04/2015] [Accepted: 11/05/2015] [Indexed: 06/05/2023]
Abstract
To increase understanding on the mechanisms of cultivar difference in contaminant accumulation in crops, this study was designed to compare the physiological responses to di-n-butyl phthalate (DBP) exposure between low (Lvbao70) and high (Huaguan) DBP cultivars of Chinese flowering cabbage (Brassica parachinensis L.). Under high DBP exposure, significant differences in various physiological responses were observed between the two cultivars, which might account for the variation in DBP accumulation. Ultrastructure observation also showed different alterations or damages in the mesophyll cell structures between both cultivars, especially for the chloroplast disintegration, starch grain quantity, and plastoglobuli accumulation. Compared with Huaguan, Lvbao70 suffered greater decreases in biomass, chlorophyll content, carbon assimilation, gas exchange parameters, photosynthetic electron transport capacity, and antioxidase activities, which would have resulted in a great reduction of photosynthetic capacity. Although Lvbao70 enhanced energy dissipation and activities of some antioxidant enzymes, they did not provide sufficient protection against oxidative damage caused by DBP. The result suggested that the lower DBP tolerance of Lvbao70 might be associated with its poor physiological performances, which was responsible for its lower DBP accumulation to protect itself from toxicity. Additionally, Lvbao70 had a significantly lower transpiration rate and stomatal conductance than Huaguan, which might be the factors regulating DBP-accumulation variation.
Collapse
Affiliation(s)
- Hai-Ming Zhao
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Healthy, School of Environment, Jinan University, Guangzhou 510632, China
| | - Huan Du
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Healthy, School of Environment, Jinan University, Guangzhou 510632, China
| | - Lei Xiang
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Healthy, School of Environment, Jinan University, Guangzhou 510632, China
| | - Yan-Wen Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Healthy, School of Environment, Jinan University, Guangzhou 510632, China
| | - Hui Li
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Healthy, School of Environment, Jinan University, Guangzhou 510632, China
| | - Quan-Ying Cai
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Healthy, School of Environment, Jinan University, Guangzhou 510632, China.
| | - Ce-Hui Mo
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Healthy, School of Environment, Jinan University, Guangzhou 510632, China.
| | - Gang Cao
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Healthy, School of Environment, Jinan University, Guangzhou 510632, China
| | - Ming-Hung Wong
- Guangdong Provincial Research Center for Environment Pollution Control and Remediation Materials, Guangzhou Key Laboratory of Environmental Exposure and Healthy, School of Environment, Jinan University, Guangzhou 510632, China; Consortium on Health, Environment, Education and Research (CHEER), and Department of Science and Environmental Studies, Hong Kong Institute of Education, Hong Kong, China
| |
Collapse
|
43
|
Zhang Y, Zhang H, Sun X, Wang L, Du N, Tao Y, Sun G, Erinle KO, Wang P, Zhou C, Duan S. Effect of dimethyl phthalate (DMP) on germination, antioxidant system, and chloroplast ultrastructure in Cucumis sativus L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:1183-1192. [PMID: 26631021 DOI: 10.1007/s11356-015-5855-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2014] [Accepted: 11/23/2015] [Indexed: 06/05/2023]
Abstract
Pollution of agricultural soils caused by widely employed plastic products, such as phthalic acid esters (PAEs), are becoming widespread in China, and they have become a threat to human health and the environment. However, little information is available on the influence of PAEs on vegetable crops. In this study, effects of different dimethyl phthalate (DMP) treatments (0, 30, 50, 100, and 200 mg L(-1)) on seed germination and growth of cucumber seedlings were investigated. Although germination rate showed no significant difference compared to control, seed germination time was significantly delayed at DMP greater than 50 mg L(-1). Concentrations of DMP greater than 30 mg L(-1) reduced cucumber lateral root length and number. The measurement of five physiological indexes in cucumber leaves with increasing DMP concentration revealed a decrease in leaf chlorophyll content, while proline and H2O2 contents increased. Peroxidase (POD) and catalase (CAT) activities increased in cucumber plants under 30 and 50 mg L(-1) DMP treatments compared to control; while after a 7-day treatment, these activities were seriously reduced under 100 and 200 mg L(-1) DMP treatments. According to transmission electron microscopy (TEM) micrographic images, the control and 30 mg L(-1) DMP treatments caused no change to leaf chloroplast shape with well-structured thylakoid membrane and parallel pattern of lamellae. At concentrations higher than 30 mg L(-1), DMP altered the ultrastructure of chloroplast, damaged membrane structure, disordered the lamellae, and increased the number and volume of starch grains. Moreover, the envelope of starch grains began to degrade under 200 mg L(-1) DMP treatment.
Collapse
Affiliation(s)
- Ying Zhang
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China.
| | - Hui Zhang
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Xin Sun
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Lei Wang
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Na Du
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Yue Tao
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Guoqiang Sun
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Kehinde O Erinle
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Pengjie Wang
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Changjian Zhou
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| | - Shuwei Duan
- School of Resource and Environment, Northeast Agricultural University, Harbin, 150030, China
| |
Collapse
|
44
|
Wieczorek J, Sienkiewicz S, Pietrzak M, Wieczorek Z. Uptake and phytotoxicity of anthracene and benzo[k]fluoranthene applied to the leaves of celery plants (Apium graveolens var. secalinum L.). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 115:19-25. [PMID: 25666733 DOI: 10.1016/j.ecoenv.2015.01.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 01/27/2015] [Accepted: 01/31/2015] [Indexed: 05/15/2023]
Abstract
The above-ground parts of celery plants were exposed to two polycyclic aromatic hydrocarbons (PAHs): 3-ring anthracene (ANT) and 5-ring benzo[k]fluoranthene (BkF), and the combination of ANT and BkF. After 43 days of exposure (overall dose of 1325µg/plant), celery plants retained only 1.4% of the total dose of ANT and 17.5% of the total dose of BkF. After exposure to a combination of ANT and BkF (1325µg of each compound per plant), the average ANT concentrations were more than twofold higher in/on leaf blades, whereas BkF levels were insignificantly higher. Under natural photoperiod conditions equivalent to a normal day, the combined application of ANT and BkF to the above-ground parts of celery plants slowed down physicochemical transformations of ANT. A similar effect was observed when PAHs were applied to glass surfaces. The combination of both PAHs probably led to stacking interactions, which decreased volatilization, in particular of ANT. Phytotoxicity of ANT and BkF could not be unambiguously established based on the results of this study. In all analyzed treatments, the chlorophyll content of leaf blades remained unchanged. Foliar application of ANT reduced ascorbic acid levels in all analyzed plant parts and increased the total acidity of celery leaves. In all experimental treatments, the total phenolic content of leaves increased up to 15%. Interestingly, ANT and BkF did not produce cumulative effects when applied in combination (when total PAH concentrations per plant were twofold higher).
Collapse
Affiliation(s)
- Jolanta Wieczorek
- Faculty of Food Sciences, University of Warmia and Mazury in Olsztyn, Plac Cieszyński 1, 10-726 Olsztyn, Poland.
| | - Stanisław Sienkiewicz
- Department of Agricultural Chemistry and Environmental Protection, University of Warmia and Mazury in Olsztyn, Oczapowskiego 8, 10-744 Olsztyn, Poland.
| | - Monika Pietrzak
- Department of Physics and Biophysics, University of Warmia and Mazury in Olsztyn, Oczapowskiego 4, 10-719 Olsztyn, Poland.
| | - Zbigniew Wieczorek
- Department of Physics and Biophysics, University of Warmia and Mazury in Olsztyn, Oczapowskiego 4, 10-719 Olsztyn, Poland.
| |
Collapse
|
45
|
Dupuy J, Ouvrard S, Leglize P, Sterckeman T. Morphological and physiological responses of maize (Zea mays) exposed to sand contaminated by phenanthrene. CHEMOSPHERE 2015; 124:110-115. [PMID: 25496734 DOI: 10.1016/j.chemosphere.2014.11.051] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 10/16/2014] [Accepted: 11/18/2014] [Indexed: 06/04/2023]
Abstract
Phytoremediation is promising, but depends on clearly understanding contaminants' impact on plant functioning. We therefore focused on the impact of polycyclic aromatic hydrocarbons (PAH) on cultivated plants and understanding the impact of phenanthrene (PHE) on maize functioning (Zea mays). Cultivation was conducted under controlled conditions on artificially contaminated sand with PHE levels increasing from 50 to 750 mg PHE kg(-1). After four weeks, plants exposed to levels above 50 mg PHE kg(-1) presented decreased biomasses and reduced photosynthetic activity. These modifications were associated with higher biomass allocations to roots and lower ones to stems. The leaf biomass proportion was similar, with thinner blades than controls. PHE-exposed plant showed modified root architecture, with fewer roots of 0.2 and 0.4 mm in diameter. Leaves were potassium-deplete, but calcium, phosphorus, magnesium and zinc-enriched. Their content in nitrogen, iron, sulfur and manganese was unaffected. These responses resembled those of water-stress, although water contents in plant organs were not affected by PHE and water supply was not limited. They also indicated a possible perturbation of both nutritional functioning and photosynthesis.
Collapse
Affiliation(s)
- Joan Dupuy
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy F-54518, France
| | - Stéphanie Ouvrard
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy F-54518, France
| | - Pierre Leglize
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy F-54518, France.
| | - Thibault Sterckeman
- Université de Lorraine, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy F-54518, France; INRA, Laboratoire Sols et Environnement, UMR 1120, Vandœuvre-lès-Nancy F-54518, France
| |
Collapse
|
46
|
Zhang Y, Du N, Wang L, Zhang H, Zhao J, Sun G, Wang P. Physical and chemical indices of cucumber seedling leaves under dibutyl phthalate stress. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:3477-3488. [PMID: 25242588 DOI: 10.1007/s11356-014-3524-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2014] [Accepted: 08/26/2014] [Indexed: 06/03/2023]
Abstract
Phthalic acid ester (PAE) pollution to soil can lead to phytotoxicity in plants and potential health risks to human being. Dibutyl phthalate (DBP) as a kind of PAE has a large usage amount and large residues in soil. To analyze antioxidant responses of plants to DBP stress, effects of varying DBP concentrations on cucumber seedlings growth had been investigated. Malonaldehyde (MDA), hydrogen peroxide (H2O2), chlorophyll, proline, glutathione (GSH), and oxidized glutathione (GSSH) contents and activities of antioxidant enzymes including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), and peroxidase (POD) were studied. The results showed that H2O2 content increased in cucumber seedlings with the increase of DBP concentration. The chlorophyll content in the higher DBP significantly declined compared to the control. In the present study, a disturbance of the GSH redox balance was evidenced by a marked decrease in GSH/GSSG ratio in cucumber seedlings subjected DBP stress. Our results indicated that DBP treatment not only inhibited antioxidant capacity and antioxidant enzyme activity in seedlings' leaves but might also induce chlorophyll degradation or reduce the synthesis of chlorophyll. Moreover, it could also enhance the accumulation of reactive oxygen species (ROS) which induced membrane lipid peroxidation. DBP also altered the ultrastructure of mesophyll cells, damaged membrane structure of chloroplast and mitochondrion, and increased the number and size of starch grains in chloroplasts reducing the photosynthetic capacity.
Collapse
Affiliation(s)
- Ying Zhang
- Northeast Agricultural University, School of Resources & Environment, Harbin, Heilongjiang Province, China,
| | | | | | | | | | | | | |
Collapse
|
47
|
Chouychai W, Kruatrachue M, Lee H. Effect of Plant Growth Regulators on Phytoremediation of Hexachlorocyclohexane-Contaminated Soil. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2015; 17:1053-1059. [PMID: 25985054 DOI: 10.1080/15226514.2014.989309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The influence of three plant growth regulators, indolebutyric acid (IBA), thidiazuron (TDZ) and gibberellic acid (GA3), either individually or in pair-wise combinations, on the ability of waxy corn plant to remove hexachlorocyclohexane (HCH) from contaminated soil was studied. Waxy corn seeds were immersed for 3 h in solutions of 1.0 mg/l IBA, 0.01 mg/l TDZ, 0.1 mg/l GA3, or a mixture of two of the growth regulators, and then inoculated in soil contaminated with 46.8 mg/kg HCH for 30 days. Pretreatment of corn seeds with the plant growth regulators did not enhance corn growth when compared with those immersed in distilled water (control), but the pretreatment enhanced HCH removal significantly. On day 30, HCH concentration in the bulk soil planted with corn seeds pretreated with GA3 or TDZ+GA3 decreased by 97.4% and 98.4%, respectively. In comparison, HCH removal in soil planted with non-pretreated control waxy corn seeds was only 35.7%. The effect of several growth regulator application methods was tested with 0.01 mg/l TDZ. The results showed that none of the methods, which ranged from seed immersion, watering in soil, or spraying on shoots, affected HCH removal from soil. However, the method of applying the growth regulators may affect corn growth. Watering the corn plant with TDZ in soil led to higher root fresh weight (2.2 g) and higher root dried weight (0.57 g) than the other treatments (0.2-1.7 g root fresh weight and 0.02-0.43 g root dried weight) on day 30. Varying the concentrations of GA3 did not affect the enhancement of corn growth and HCH removal on day 30. The results showed that plant growth regulators may have potential for use to enhance HCH phytoremediation.
Collapse
Affiliation(s)
- Waraporn Chouychai
- a Biology Program, Department of Science , Faculty of Science and Technology Nakhonsawan Rajabhat University , Nakhonsawan , Thailand
| | - Maleeya Kruatrachue
- b Department of Biology , Faculty of Science, Mahidol University , Bangkok , Thailand
| | - Hung Lee
- c School of Environmental Sciences, University of Guelph , Guelph , Ontario , Canada
| |
Collapse
|
48
|
Peng RH, Fu XY, Zhao W, Tian YS, Zhu B, Han HJ, Xu J, Yao QH. Phytoremediation of phenanthrene by transgenic plants transformed with a naphthalene dioxygenase system from Pseudomonas. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:12824-12832. [PMID: 25299803 DOI: 10.1021/es5015357] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Genes from microbes for degrading polycyclic aromatic hydrocarbons (PAHs) are seldom used to improve the ability of plants to remediate the pollution because the initiation of the microbial degradation of PAHs is catalyzed by a multienzyme system. In this study, for the first time, we have successfully transferred the complex naphthalene dioxygenase system of Pseudomonas into Arabidopsis and rice, the model dicot and monocot plant. As in bacteria, all four genes of the naphthalene dioxygenase system can be simultaneously expressed and assembled to an active enzyme in transgenic plants. The naphthalene dioxygenase system can develop the capacity of plants to tolerate a high concentration of phenanthrene and metabolize phenanthrene in vivo. As a result, transgenic plants showed improved uptake of phenanthrene from the environment over wild-type plants. In addition, phenanthrene concentrations in shoots and roots of transgenic plants were generally lower than that of wild type plants. Transgenic plants with a naphthalene dioxygenase system bring the promise of an efficient and environmental-friendly technology for cleaning up PAHs contaminated soil and water.
Collapse
Affiliation(s)
- Ri-He Peng
- Agro-Biotechnology Research Institute, Shanghai Academy of Agricultural Sciences , 2901 Beidi Rd, Shanghai, 201106, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Tomar RS, Jajoo A. Fluoranthene, a polycyclic aromatic hydrocarbon, inhibits light as well as dark reactions of photosynthesis in wheat (Triticum aestivum). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2014; 109:110-115. [PMID: 25173746 DOI: 10.1016/j.ecoenv.2014.08.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 08/09/2014] [Accepted: 08/09/2014] [Indexed: 06/03/2023]
Abstract
The toxic effect of fluoranthene (FLT) on seed germination, growth of seedling and photosynthesis processes of wheat (Triticum aestivum) was investigated. Wheat seeds were exposed to 5 µM and 25 µM FLT concentrations for 25 days and it was observed that FLT had inhibiting effect on rate of seed germination. The germination rate of wheat seeds decreased by 11% at 25 µM FLT concentration. Root/shoot growth and biomass production declined significantly even at low concentrations of FLT. Chlorophyll a fluorescence and gas exchange parameters were measured after 25 days to evaluate the effects of FLT on Photosystem II (PSII) activity and CO2 assimilation rate. The process of CO2 assimilation decreased more effectively by FLT as compared to the yield of PSII. A negative correlation was found between plant net photosynthesis, stomatal conductance, carboxylation capacity and biomass production with FLT. It is concluded that inhibiting effects of FLT on photosynthesis are contributed more by inhibition in the process of CO2 fixation rather than inhibition of photochemical events.
Collapse
Affiliation(s)
- Rupal Singh Tomar
- School of Life science, Devi Ahilya University, Indore 452017, Madhya Pradesh, India
| | - Anjana Jajoo
- School of Life science, Devi Ahilya University, Indore 452017, Madhya Pradesh, India.
| |
Collapse
|
50
|
Methylobacterium populi VP2: plant growth-promoting bacterium isolated from a highly polluted environment for polycyclic aromatic hydrocarbon (PAH) biodegradation. ScientificWorldJournal 2014; 2014:931793. [PMID: 25152928 PMCID: PMC4135167 DOI: 10.1155/2014/931793] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 05/28/2014] [Accepted: 07/10/2014] [Indexed: 11/17/2022] Open
Abstract
The use of microorganisms to accelerate the natural detoxification processes of toxic substances in the soil represents an alternative ecofriendly and low-cost method of environmental remediation compared to harmful incineration and chemical treatments. Fourteen strains able to grow on minimal selective medium with a complex mixture of different classes of xenobiotic compounds as the sole carbon source were isolated from the soil of the ex-industrial site ACNA (Aziende Chimiche Nazionali Associate) in Cengio (Savona, Italy). The best putative degrading isolate, Methylobacterium populi VP2, was identified using a polyphasic approach on the basis of its phenotypic, biochemical, and molecular characterisation. Moreover, this strain also showed multiple plant growth promotion activities: it was able to produce indole-3-acetic acid (IAA) and siderophores, solubilise phosphate, and produce a biofilm in the presence of phenanthrene and alleviate phenanthrene stress in tomato seeds. This is the first report on the simultaneous occurrence of the PAH-degrading ability by Methylobacterium populi and its multiple plant growth-promoting activities. Therefore, the selected indigenous strain, which is naturally present in highly contaminated soils, is good candidate for plant growth promotion and is capable of biodegrading xenobiotic organic compounds to remediate contaminated soil alone and/or soil associated with plants.
Collapse
|