1
|
Elkelish A, Alhudhaibi AM, Hossain AS, Haouala F, Alharbi BM, El-Banna MF, Rizk A, Badji A, AlJwaizea NI, Sayed AAS. Alleviating chromium-induced oxidative stress in Vigna radiata through exogenous trehalose application: insights into growth, photosynthetic efficiency, mineral nutrient uptake, and reactive oxygen species scavenging enzyme activity enhancement. BMC PLANT BIOLOGY 2024; 24:460. [PMID: 38797833 PMCID: PMC11129419 DOI: 10.1186/s12870-024-05152-y] [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: 03/02/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024]
Abstract
Trehalose serves as a crucial osmolyte and plays a significant role in stress tolerance. The influence of exogenously added trehalose (1 and 5 mM) in alleviating the chromium (Cr; 0.5 mM) stress-induced decline in growth, photosynthesis, mineral uptake, antioxidant system and nitrate reductase activity in Vigna radiata was studied. Chromium (Cr) significantly declined shoot height (39.33%), shoot fresh weight (35.54%), shoot dry weight (36.79%), total chlorophylls (50.70%), carotenoids (29.96%), photosynthesis (33.97%), net intercellular CO2 (26.86%), transpiration rate (36.77%), the content of N (35.04%), P (35.77%), K (31.33%), S (23.91%), Mg (32.74%), and Ca (29.67%). However, the application of trehalose considerably alleviated the decline. Application of trehalose at both concentrations significantly reduced hydrogen peroxide accumulation, lipid peroxidation and electrolyte leakage, which were increased due to Cr stress. Application of trehalose significantly mitigated the Cr-induced oxidative damage by up-regulating the activity of reactive oxygen species (ROS) scavenging enzymes, including superoxide dismutase (182.03%), catalase (125.40%), ascorbate peroxidase (72.86%), and glutathione reductase (68.39%). Besides this, applied trehalose proved effective in enhancing ascorbate (24.29%) and reducing glutathione content (34.40%). In addition, also alleviated the decline in ascorbate by Cr stress to significant levels. The activity of nitrate reductase enhanced significantly (28.52%) due to trehalose activity and declined due to Cr stress (34.15%). Exogenous application of trehalose significantly improved the content of osmolytes, including proline, glycine betaine, sugars and total phenols under normal and Cr stress conditions. Furthermore, Trehalose significantly increased the content of key mineral elements and alleviated the decline induced by Cr to considerable levels.
Collapse
Affiliation(s)
- Amr Elkelish
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
- Botany and Microbiology Department, Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt
| | - Abdulrahman M Alhudhaibi
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Abm Sharif Hossain
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Faouzi Haouala
- Department of Biology, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia
| | - Basmah M Alharbi
- Biology Department, Faculty of Science, University of Tabuk, Tabuk, 71491, Saudi Arabia
- Biodiversity Genomics Unit, Faculty of Science, University of Tabuk, Tabuk, 71491, Saudi Arabia
| | - Mostafa F El-Banna
- Agricultural Botany Department, Faculty of Agriculture, Mansoura University, Mansoura, 35516, Egypt
| | - Amira Rizk
- Department, Faculty of Agriculture, Tanta University, Tanta City, 31527, Egypt
| | - Arfang Badji
- Department of Agricultural Production, College of Agricultural and Environmental Studies, Makerere University, P.O. Box 7062, Kampala, Uganda.
- Makerere University Regional Centre for Crop Improvement, Makerere University, Kampala, 7062, Uganda.
| | - Nada Ibrahim AlJwaizea
- Department of Biology, College of science, Princess Nourah bint Abdulrahman University, P.O.Box 84428, Riyadh, 11671, Saudi Arabia
| | - Ali A S Sayed
- Botany Department, Faculty of Agriculture, Fayoum University, Fayoum, 63514, Egypt
| |
Collapse
|
2
|
Sarker SS, Akter S, Siddique MAB, Rahman KMJ, Nahar S, Sharmin SA. Chromium and arsenic bioaccumulation and biomass potential of pink morning glory (Ipomoea carnea Jacq.). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:2187-2197. [PMID: 38055168 DOI: 10.1007/s11356-023-31159-3] [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: 11/21/2022] [Accepted: 11/17/2023] [Indexed: 12/07/2023]
Abstract
Soil contamination with heavy metals and metalloids is a global concern nowadays. Phytoremediation is an eco-friendly, cost-effective, and sustainable way of mitigating such contamination by utilizing the plants' ability to accumulate, sequester, and stabilize elements. Biomass-producing plants may outperform hyperaccumulators in terms of total elemental removal and offer more cost-effectiveness through their usable biomass. Ipomoea carnea is a wild plant in the Asian region. It is resilient, spreads rapidly in a wide range of soil conditions, and has a high potential for biomass feedstock. In this work, we have tested this plant species for its growth performance and accumulation characteristics of Cr and As. In a pot experiment, the plants could easily grow from rootless stem segments in 2 weeks when garden soils are treated with 100-500 ppm of Cr and 20-300 ppm of As. Plant growth reduction was little at the moderate level of these elements, with a significant accumulation of elements in 45 days. Within this time, in the stems and leaves, the Cr concentrations were found to be 49 and 39 ppm, respectively, when treated with 500 ppm of Cr, whereas the As concentrations were obtained as 83 and 28 ppm, respectively, for the treatment with 300 ppm of As. To estimate the biomass production potential, the plant was grown with a density of 80,000 per ha under normal field conditions (without metal stress). At the harvest, the plants consisted of 80% stems, 11% leaves, and 9% belowground portions on a dry weight basis. The dry weight of stems, leaves, and belowground parts was 31.3%, 17.9%, and 23.7%, respectively. Overall, the estimated biomass was 25.8 Mg/ha/year from three harvests. The ability to regrow from the basal part makes it useful for continuous sequestration of toxic elements over multiple harvests. Our results show that I. carnea could lower Cr and As from contaminated soils and potentially a phytoremediation candidate considering accumulation rate and high amount of usable biomass production.
Collapse
Affiliation(s)
- Shashanka Shekhar Sarker
- Environmental Biotechnology Division, National Institute of Biotechnology, Ganakbari, Ashulia, Savar, Dhaka, 1349, Bangladesh
- Leather Research Institute, Bangladesh Council of Scientific and Industrial Research (BCSIR), Nayarhat, Savar, Dhaka, 1350, Bangladesh
| | - Shakila Akter
- Institute of National Analytical Research and Service (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
- School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Md Abu Bakar Siddique
- Institute of National Analytical Research and Service (INARS), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, 1205, Bangladesh
| | - Khondaker Md Jaminur Rahman
- Environmental Biotechnology Division, National Institute of Biotechnology, Ganakbari, Ashulia, Savar, Dhaka, 1349, Bangladesh
- Certification Marks Wing, Bangladesh Standards and Testing Institution, R K Road, Goneshpur, Rangpur, 5400, Bangladesh
| | - Shamsun Nahar
- Environmental Biotechnology Division, National Institute of Biotechnology, Ganakbari, Ashulia, Savar, Dhaka, 1349, Bangladesh
| | - Shamima Akhtar Sharmin
- Environmental Biotechnology Division, National Institute of Biotechnology, Ganakbari, Ashulia, Savar, Dhaka, 1349, Bangladesh.
| |
Collapse
|
3
|
Ding N, Ullah H, Yu G, He Y, Liu L, Xie Y, Shahab A, Lin H. Spatial dynamics of pH in the rhizosphere of Leersia hexandra Swartz at different chromium exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115380. [PMID: 37597293 DOI: 10.1016/j.ecoenv.2023.115380] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 08/09/2023] [Accepted: 08/13/2023] [Indexed: 08/21/2023]
Abstract
The roots of hyperaccumulators can significantly alter soil pH and thus change the chromium (Cr) availability in the rhizosphere. The pH dynamics in the rhizosphere of Cr hyperaccumulator Leersia hexandra Swartz remains unknown. In this study, the spatial dynamics of pH in the rhizosphere of L. hexandra at different Cr exposure were examined using planar optode (PO). The effects of different Cr concentrations on the biomass, physiological parameters, and soil enzyme activity were investigated. The results showed that pH in the rhizosphere of L. hexandra was highly heterogeneous and followed the root shape. There were obvious soil acidification in all groups and the average pH values in the control, Cr50, and Cr100 groups decreased by 0.26, 0.27, and 0.35 pH unit, respectively. At a certain concentration (50 mg kg-1), Cr significantly increased the plant height and biomass of L. hexandra compared to the control (p < 0.05). The concentrations of chlorophyll a, chlorophyll b, and total chlorophyll in the leaves increased with increasing Cr concentrations. The acid phosphatase, urease, and catalase activities in the rhizosphere were higher than those in the bulk soil. These results provide new insights into elucidating the hyperaccumulating mechanism of Cr and improving the phytoremediation efficiency.
Collapse
Affiliation(s)
- Na Ding
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Habib Ullah
- Innovation Center of Yangtze River Delta, Zhejiang University, Zhejiang 311400, China.
| | - Guo Yu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Yao He
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Liheng Liu
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Yiruiwen Xie
- Department of Architecture and Environmental Engineering, Taiyuan University, Taiyuan, China.
| | - Asfandyar Shahab
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| | - Hua Lin
- College of Environmental Science and Engineering, Guilin University of Technology, Guilin, China.
| |
Collapse
|
4
|
El-Ballat EM, Elsilk SE, Ali HM, Ali HE, Hano C, El-Esawi MA. Metal-Resistant PGPR Strain Azospirillum brasilense EMCC1454 Enhances Growth and Chromium Stress Tolerance of Chickpea ( Cicer arietinum L.) by Modulating Redox Potential, Osmolytes, Antioxidants, and Stress-Related Gene Expression. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12112110. [PMID: 37299089 DOI: 10.3390/plants12112110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/16/2023] [Accepted: 05/20/2023] [Indexed: 06/12/2023]
Abstract
Heavy metal stress, including from chromium, has detrimental effects on crop growth and yields worldwide. Plant growth-promoting rhizobacteria (PGPR) have demonstrated great efficiency in mitigating these adverse effects. The present study investigated the potential of the PGPR strain Azospirillum brasilense EMCC1454 as a useful bio-inoculant for boosting the growth, performance and chromium stress tolerance of chickpea (Cicer arietinum L.) plants exposed to varying levels of chromium stress (0, 130 and 260 µM K2Cr2O7). The results revealed that A. brasilense EMCC1454 could tolerate chromium stress up to 260 µM and exhibited various plant growth-promoting (PGP) activities, including nitrogen fixation, phosphate solubilization, and generation of siderophore, trehalose, exopolysaccharide, ACC deaminase, indole acetic acid, and hydrolytic enzymes. Chromium stress doses induced the formation of PGP substances and antioxidants in A. brasilense EMCC1454. In addition, plant growth experiments showed that chromium stress significantly inhibited the growth, minerals acquisition, leaf relative water content, biosynthesis of photosynthetic pigments, gas exchange traits, and levels of phenolics and flavonoids of chickpea plants. Contrarily, it increased the concentrations of proline, glycine betaine, soluble sugars, proteins, oxidative stress markers, and enzymatic (CAT, APX, SOD, and POD) and non-enzymatic (ascorbic acid and glutathione) antioxidants in plants. On the other hand, A. brasilense EMCC1454 application alleviated oxidative stress markers and significantly boosted the growth traits, gas exchange characteristics, nutrient acquisition, osmolyte formation, and enzymatic and non-enzymatic antioxidants in chromium-stressed plants. Moreover, this bacterial inoculation upregulated the expression of genes related to stress tolerance (CAT, SOD, APX, CHS, DREB2A, CHI, and PAL). Overall, the current study demonstrated the effectiveness of A. brasilense EMCC1454 in enhancing plant growth and mitigating chromium toxicity impacts on chickpea plants grown under chromium stress circumstances by modulating the antioxidant machinery, photosynthesis, osmolyte production, and stress-related gene expression.
Collapse
Affiliation(s)
- Enas M El-Ballat
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Sobhy E Elsilk
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Hayssam M Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Hamada E Ali
- Department of Biology, College of Science, Sultan Qaboos University, Muscat 123, Oman
- Botany and Microbiology Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRAE USC1328, Campus Eure et Loir, Orleans University, 45067 Orleans, France
| | - Mohamed A El-Esawi
- Botany Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
- Photobiology Research Group, Sorbonne Université CNRS, 75005 Paris, France
| |
Collapse
|
5
|
Kumar S, Wang M, Fahad S, Qayyum A, Chen Y, Zhu G. Chromium Induces Toxicity at Different Phenotypic, Physiological, Biochemical, and Ultrastructural Levels in Sweet Potato ( Ipomoea batatas L.) Plants. Int J Mol Sci 2022; 23:13496. [PMID: 36362283 PMCID: PMC9656234 DOI: 10.3390/ijms232113496] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 10/27/2022] [Accepted: 10/31/2022] [Indexed: 10/23/2023] Open
Abstract
Crop productivity is enormously exposed to different environmental stresses, among which chromium (Cr) stress raises considerable concerns and causes a serious threat to plant growth. This study explored the toxic effect of Cr on sweet potato plants. Plants were hydroponically grown, and treatments of 0, 25, 50, 100, and 200 µM Cr were applied for seven days. This study exhibited that a low level of Cr treatment (25 µM) enhanced the growth, biomass, photosynthesis, osmolytes, antioxidants, and enzyme activities. However, significant deleterious effects in growth, biomass, photosynthetic attributes, antioxidants, and enzymes were observed at higher levels of Cr treatment. The remarkable reduction in plant growth traits was associated with the over-accumulation of H2O2 and MDA contents (410% and 577%, respectively) under the highest rate of Cr (200 µM). Under 200 µM Cr, the uptake in the roots were 27.4 mg kg-1 DW, while in shoots were 11 mg kg-1 DW with the highest translocation rate from root to shoot was 0.40. The results showed that the higher accumulation of Cr negatively correlated with the phenotypic and physiological parameters. It may be proposed that Cr toxicity causes oxidative damage as sustained by augmented lipid peroxidation, reactive oxygen species, and reduced photosynthetic rate, chlorophyll, and stomatal traits. The chloroplastic ultrastructure was damaged, and more apparent damage and size reduction were observed at higher Cr levels. Furthermore, aggregated Cr concentration positively correlates with the increase of osmolytes and superoxide dismutase (SOD) activity in the leaves of sweet potato. Moreover, improved osmolytes and SOD do not help protect sweet potato against high Cr stress. Overall, these findings will improve the understanding of the defense mechanisms of sweet potato to Cr stress.
Collapse
Affiliation(s)
- Sunjeet Kumar
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou 570228, China
| | - Mengzhao Wang
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou 570228, China
| | - Shah Fahad
- Department of Agronomy, Abdul Wali Khan University Mardan, Mardan 23200, Pakistan
| | - Abdul Qayyum
- Department of Agronomy, The University of Haripur, Haripur 22620, Pakistan
| | - Yanli Chen
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou 570228, China
| | - Guopeng Zhu
- Key Laboratory for Quality Regulation of Tropical Horticultural Crops of Hainan Province, School of Horticulture, Hainan University, Haikou 570228, China
| |
Collapse
|
6
|
Singh D, Sharma NL, Singh CK, Yerramilli V, Narayan R, Sarkar SK, Singh I. Chromium (VI)-Induced Alterations in Physio-Chemical Parameters, Yield, and Yield Characteristics in Two Cultivars of Mungbean ( Vigna radiata L.). FRONTIERS IN PLANT SCIENCE 2021; 12:735129. [PMID: 34659304 PMCID: PMC8516152 DOI: 10.3389/fpls.2021.735129] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Accepted: 08/30/2021] [Indexed: 05/19/2023]
Abstract
Chromium (Cr) presently used in various major industries and its residues possess a potent environmental threat. Contamination of soil and water resources due to Cr ions and its toxicity has adversely affected plant growth and crop productivity. Here, deleterious effects of different levels of Cr (VI) treatments i.e., 0, 30, 60, 90, and 120 μM on two mungbean cultivars, Pusa Vishal (PV) and Pusa Ratna (PR), in hydroponic and pot conditions were evaluated. Germination, seedling growth, biomass production, antioxidant enzyme, electrolytic leakage, oxidative stress (hydrogen peroxide and malondialdehyde), and proline content were determined to evaluate the performance of both cultivars under hydroponic conditions for 15 days. The hydroponic results were further compared with the growth and seed yield attributes of both the genotypes in pot experiments performed over 2 years. Seedling growth, biomass production, total chlorophyll (Chl), Chl-a, Chl-b, nitrogen content, plant height, seed protein, and seed yield decreased significantly under the 120 μM Cr stress level. Activities of antioxidant enzymes superoxide dismutase, catalase, ascorbate peroxidase and peroxidase increased in the leaves following Cr exposure at 60-90 μM but declined at 120 μM. Cr-induced reductions in growth and seed yield attributes were more in the sensitive than in the tolerant cultivar. Cr accumulation in the roots, stems, leaves, and seeds increased with an increase in Cr concentrations in the pot conditions. Furthermore, for both cultivars, there were significant negative correlations in morpho-physiological characteristics under high Cr concentrations. Overall results suggest that (PR) is more sensitive to Cr stress (PV) at the seedling stage and in pot conditions. Furthermore, (PV) can be utilized to study the mechanisms of Cr tolerance and in breeding programs to develop Cr-resistant varieties.
Collapse
Affiliation(s)
- Deepti Singh
- Department of Botany, Meerut College, Meerut, India
- *Correspondence: Deepti Singh
| | | | - Chandan Kumar Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Vimala Yerramilli
- Department of Botany, Chaudhary Charan Singh University, Meerut, India
| | - Rup Narayan
- Department of Botany, Chaudhary Charan Singh University, Meerut, India
| | - Susheel Kumar Sarkar
- Division of Design of Experiments, ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | - Ishwar Singh
- Department of Botany, Chaudhary Charan Singh University, Meerut, India
- Ishwar Singh
| |
Collapse
|
7
|
Effect of chromium (VI) toxicity on morpho-physiological characteristics, yield, and yield components of two chickpea (Cicer arietinum L.) varieties. PLoS One 2020; 15:e0243032. [PMID: 33270694 PMCID: PMC7714171 DOI: 10.1371/journal.pone.0243032] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/16/2020] [Indexed: 01/24/2023] Open
Abstract
The ever-increasing industrial activities over the decades have generated high toxic metal such as chromium (Cr) that hampers the crop productivity. This study evaluated the effect of Cr on two chickpea (Cicer arietinum L.) varieties, Pusa 2085 and Pusa Green 112, in hydroponic and pot-grown conditions. First, growth parameters (seed germination, seedling growth, and biomass production) and physio-biochemical parameters (oxidative stress and the content of antioxidants and proline) were measured to evaluate the performance of both varieties grown hydroponically for 21 days at concentrations of 0, 30, 60, 90 and 120 μM Cr in the form of potassium dichromate (K2Cr2O7). In both varieties, significantly deleterious effects on germination and seedling growth parameters were observed at 90 and 120 μM, while growth was stimulated at 30 μM Cr. Significant increases in malondialdehyde and hydrogen peroxide content and electrolyte leakage demonstrated enhanced oxidative injury to seedlings caused by higher concentrations of Cr. Further, increasing concentrations of Cr positively correlated with increased proline content, superoxide dismutase activity, and peroxide content in leaves. There was also an increase in peroxisomal ascorbate peroxidase and catalase in the leaves of both varieties at lower Cr concentrations, whereas a steep decline was recorded at higher Cr concentrations. In the pot experiments conducted over two consecutive years, growth, yield, yield attributes, grain protein, and Cr uptake and accumulation were measured at different Cr concentrations. Pusa Green 112 showed a significant reduction in plant growth, chlorophyll content, grain protein, pod number, and grain yield per plant when compared with Pusa 2085. Overall, our results indicate that Pusa 2085 has a higher Cr tolerance than Pusa Green 112. Therefore, Pusa 2085 could be used to further elucidate the mechanisms of Cr tolerance in plants and in breeding programmes to produce Cr-resistant varieties.
Collapse
|
8
|
In silico studies on structural, functional, and evolutionary analysis of bacterial chromate reductase family responsible for high chromate bioremediation efficiency. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-03830-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
|
9
|
Qureshi FF, Ashraf MA, Rasheed R, Ali S, Hussain I, Ahmed A, Iqbal M. Organic chelates decrease phytotoxic effects and enhance chromium uptake by regulating chromium-speciation in castor bean (Ricinus communis L.). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 716:137061. [PMID: 32036143 DOI: 10.1016/j.scitotenv.2020.137061] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/30/2019] [Accepted: 01/31/2020] [Indexed: 06/10/2023]
Abstract
There is limited information available on changes in the uptake of essential nutrients and secondary metabolites accumulation in castor bean under Cr toxicity. Besides, the role of organic chelates (EDTA and citric acid) mediated improvement in Cr uptake by castor bean is mostly unknown. Three independent experiments (sand, hydroponics, and soil) were executed to determine the Cr phytoextraction potential of Ricinus communis L. In the sand experiment, optimum doses of organic chelates (EDTA and citric acid) were selected. These optimum doses of chelates were used in the hydroponics and soil experiments. The results of hydroponics and soil experiments manifested a significant decrease in growth characteristics and leaf pigments in response to Cr stress applied as K2Cr2O7 (a source of Cr6+). The application of organic chelates (2.5 and 5 mM) showed a noticeable improvement in oxidative defense and secondary metabolites accumulation that might have decreased oxidative injury reflected as lower hydrogen peroxide (H2O2) and malondialdehyde (MDA) contents. Moreover, chelates improved the uptake of essential nutrients (K+, Ca2+, Mg2+, Fe2+ and P) alongside significant enhancement in total Cr contents of plants. Our results advocated that chelates application resulted in greater endogenous levels of Cr3+ in plants compared with Cr6+ which is more toxic. In nutshell, organic chelates improved growth by regulating Cr species, ion homeostasis and secondary metabolites accumulation in Ricinus communis L.
Collapse
Affiliation(s)
- Freeha Fatima Qureshi
- Department of Botany, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Muhammad Arslan Ashraf
- Department of Botany, Government College University Faisalabad, Faisalabad 38000, Pakistan.
| | - Rizwan Rasheed
- Department of Botany, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences & Engineering, Government College University, Faisalabad 38000, Pakistan; Department of Biological Sciences and Technology, China Medical University (CMU), Taiwan
| | - Iqbal Hussain
- Department of Botany, Government College University Faisalabad, Faisalabad 38000, Pakistan
| | - Aftab Ahmed
- Institute of Home and Food Sciences Government College University, Faisalabad, Pakistan
| | - Muhammad Iqbal
- Department of Botany, Government College University Faisalabad, Faisalabad 38000, Pakistan
| |
Collapse
|
10
|
Gonzalez Ibarra AA, Wrobel K, Yanez Barrientos E, Corrales Escobosa AR, Gutierrez Corona JF, Enciso Donis I, Wrobel K. Impact of Cr(VI) on the oxidation of polyunsaturated fatty acids in Helianthus annuus roots studied by metabolomic tools. CHEMOSPHERE 2019; 220:442-451. [PMID: 30594795 DOI: 10.1016/j.chemosphere.2018.12.145] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/27/2018] [Accepted: 12/19/2018] [Indexed: 05/28/2023]
Abstract
The impact of Cr(VI) in sunflower roots has been studied, focusing on the oxidation of polyunsaturated fatty acids. Plants were grown hydroponically in the presence of 0, 1.0, 5.0 and 25 mgCr L-1. Methanolic root extracts were analyzed by capillary liquid chromatography coupled through negative electrospray ionization to a quadrupole-time of flight mass spectrometry (capHPLC-ESI-QTOF-MS). Using partial least squares algorithm, eighteen features strongly affected by Cr(VI) were detected and annotated as linoleic acid (LA), alpha-linolenic acid (ALA) and sixteen oxidation products containing hydroperoxy-, epoxy-, keto-, epoxyketo- or hydroxy-functionalities, all of them classified as oxylipins. Inspection of the MS/MS spectra acquired for features eluting at different retention times but assigned as a sole compound, confirmed isomers formation: three hydroperoxy-octadecadienoic acids (HpODE), two oxo-octadecadienoic acids (OxoODE) and four epoxyketo-octadecenoic acids (EKODE). Around 70% of metabolites in sunflower LA metabolic pathway were affected by Cr(VI) stress and additionally, four EKODE isomers not included in this pathway were found in the exposed roots. Among ALA-derived oxylipins, 13-epi-12-oxo-phytodienoic acid (OPDA) is of relevance, because of its participation in the activation of secondary metabolism. The abundances of all oxylipins were directly dependent on the Cr(VI) concentration in medium; furthermore, autooxidation of LA to HpODE isomers was observed after incubation with Cr(VI). These results point to the direct involvement of Cr(VI) in non-enzymatic oxidation of fatty acids; since oxylipins are signaling molecules important in plant defensive response, their synthesis under Cr(VI) exposure sustains the ability of sunflower to grow in Cr(VI)-contaminated environments.
Collapse
Affiliation(s)
| | - Katarzyna Wrobel
- Chemistry Department, University of Guanajuato, L. de Retana 5, 36000 Guanajuato, Mexico
| | | | | | | | - Israel Enciso Donis
- Chemistry Department, University of Guanajuato, L. de Retana 5, 36000 Guanajuato, Mexico
| | - Kazimierz Wrobel
- Chemistry Department, University of Guanajuato, L. de Retana 5, 36000 Guanajuato, Mexico.
| |
Collapse
|