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Shen J, Huang G, Yao Y, Li M, Zhang P, Zhao K, Rosendahl S. Development of calcium-modified biochar for enhanced phytoremediation of human-induced salt pollutants (HISPs). CHEMOSPHERE 2024; 355:141860. [PMID: 38565377 DOI: 10.1016/j.chemosphere.2024.141860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/23/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
Soil salinization is a major environmental hazard that limits land availability. Human-induced salt pollutants (HISPs) are regularly presented in large quantities on the contaminated site (such as brine leakages and salt-water spills), causing a devastating shock with high salt stress to the ecosystem. For instance, Saskatchewan resulted in a 48% drop in wheat production and a 0.3% decline in provincial GDP. As the calcium-modified biochar can potentially ameliorate the negative effects of HISPs on plants and improve the plant, phytoremediation with calcium-modified biochar can have increased detoxification of hazardous pollutants from sites. Therefore, the objective of our study was to develop a biochar-assisted phytoremediation employing diverse approaches to calcium modification for the sustainable removal of HISPs. The co-pyrolyzed calcium biochar achieved a remarkable removal rate of 18.06%, reducing salinity from 9.44 to 7.81 dS/m. During a 90-day long-term phytoremediation, the overall reduction rate of calcium-modified biochar stimulated the germination and growth of Thinopyrum ponticum. The result of post-treatment further indicated that co-pyrolyzed biochar with Ca transferred salt into the plant compared to Ca-coated biochar, which only immobilized HISPs on its surface. These results offer two different treatment approaches for diverse situations involving HISPs contamination, addressing current in-situ spills and providing a calcium-related biochar technology for further research in desalination.
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Affiliation(s)
- Jian Shen
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2
| | - Guohe Huang
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2.
| | - Yao Yao
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2
| | - Mengna Li
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2
| | - Peng Zhang
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2
| | - Kai Zhao
- Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, Saskatchewan, Canada, S4S 0A2
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Mubeen S, Pan J, Saeed W, Luo D, Rehman M, Hui Z, Chen P. Exogenous methyl jasmonate enhanced kenaf (Hibiscus cannabinus) tolerance against lead (Pb) toxicity by improving antioxidant capacity and osmoregulators. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33189-x. [PMID: 38613757 DOI: 10.1007/s11356-024-33189-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Accepted: 03/29/2024] [Indexed: 04/15/2024]
Abstract
In this study, the effects of exogenous methyl jasmonate (MeJA) on metal uptake and its ability to attenuate metal toxicity in kenaf plants under Pb stress were investigated. The experiment was conducted with five different MeJA concentrations (0, 40, 80, 160, and 320 μM) as a foilar application to kenaf plants exposed to 200 μM Pb stress. The results revealed that pretreatmen of MeJA significantly increased plant dry weight, plant height, and root architecture at all concentrations tested, with the most significant increase at 320 μM. Foliar application of MeJA at 160 μM and 320 μM increased the Pb concentrations in leaves and stems as well as the translocation factor (TF) from root to leaf. However, the bioaccumulation factor in the shoot initially decreased and then increased with increasing MeJA concentration. By increasing enzymatic (SOD, POD, and CAT) and non-enzymatic (AsA and non-protein thiols) antioxidants, MeJA pretreatment decreased lipid peroxidation, O2- and H2O2 accumulation and recovered photosynthetic pigment content under Pb stress. Increased osmolytes (proline, sugar, and starch) and protein content after MeJA pretreatment under Pb stress restore cellular homeostasis and improved kenaf tolerance. Our results suggest that MeJA pretreatment modifies the antioxidant machinery of kenaf and inhibits stress-related processes that cause lipid peroxidation, hence enhancing plant tolerance to Pb stress.
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Affiliation(s)
- Samavia Mubeen
- Guangxi Key Laboratory of Agro-environment and Agric-products Safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Jiao Pan
- Guangxi Key Laboratory of Agro-environment and Agric-products Safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Wajid Saeed
- Guangxi Key Laboratory of Agro-environment and Agric-products Safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Dengjie Luo
- Guangxi Key Laboratory of Agro-environment and Agric-products Safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Muzammal Rehman
- Guangxi Key Laboratory of Agro-environment and Agric-products Safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Zhang Hui
- Guangxi Key Laboratory of Agro-environment and Agric-products Safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, 530004, China
| | - Peng Chen
- Guangxi Key Laboratory of Agro-environment and Agric-products Safety, Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, 530004, China.
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Mamine N, Grara N, Khaldi F, Maresca V, Aouaichia K, Basile A. Determination of the Toxic Effects of Heavy Metals on the Morpho-Anatomical Responses of the Leaf of Typha latifolia as a Biomonitoring Tool. PLANTS (BASEL, SWITZERLAND) 2024; 13:176. [PMID: 38256730 PMCID: PMC10820412 DOI: 10.3390/plants13020176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024]
Abstract
Typha latifolia leaves act as sensitive barometers for trace heavy metal pollution, as revealed by their pronounced anatomical responses in a constructed wetland. Monthly water samples and Typha latifolia leaf tissue were collected over three consecutive months in 2018 from the Burgas Lake wetlands (Taoura), northeast Algeria. While physical and chemical parameters improved after treatment, atomic absorption spectrometry (Perkin Elmer A Analyst 800 AAS) detected persistent trace levels of cadmium, chromium, and lead in both the treated water and leaf tissue, highlighting the need for continued phytoremediation efforts. Microscopic examination of leaf tissue exposed to these metals revealed distinct anatomical adaptations, including shrunken vascular bundles, altered cell shapes, and stomatal closure. These findings underscore Typha latifolia's effectiveness in accumulating heavy metals and its potential as a highly sensitive biomonitor for persistent pollution in lake ecosystems.
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Affiliation(s)
- Nedjma Mamine
- Department of Biology, Faculty of Life and Natural Science, University of Mohamed Cherif Messaadia, Souk Ahras 41000, Algeria;
| | - Nedjoud Grara
- Department of Biology, Faculty of Nature, Life Sciences, Earth and Universe Sciences, University 8 May 1945, P.O. Box 401, Guelma 24000, Algeria
| | - Fadila Khaldi
- Laboratory of Science and Technology of Water and Environment, University of Mohamed Cherif Messaadia, Souk Ahras 41000, Algeria; (F.K.); (K.A.)
| | - Viviana Maresca
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy;
| | - Khaoula Aouaichia
- Laboratory of Science and Technology of Water and Environment, University of Mohamed Cherif Messaadia, Souk Ahras 41000, Algeria; (F.K.); (K.A.)
| | - Adriana Basile
- Department of Biology, University of Naples Federico II, 80126 Naples, Italy;
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Das S, Sultana KW, Mondal M, Chandra I, Ndhlala AR. Unveiling the Dual Nature of Heavy Metals: Stressors and Promoters of Phenolic Compound Biosynthesis in Basilicum polystachyon (L.) Moench In Vitro. PLANTS (BASEL, SWITZERLAND) 2023; 13:98. [PMID: 38202406 PMCID: PMC10780674 DOI: 10.3390/plants13010098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 12/25/2023] [Accepted: 12/26/2023] [Indexed: 01/12/2024]
Abstract
The global industrial revolution has led to a substantial rise in heavy metal levels in the environment, posing a serious threat to nature. Plants synthesize phenolic compounds under stressful conditions, which serve as protective agents against oxidative stress. Basilicum polystachyon (L.) Moench is an herbaceous plant of the Lamiaceae family. Some species within this family are recognized for their capacity to remediate sites contaminated with heavy metals. In this study, the effects of mercury (II) chloride and lead (II) nitrate on the in vitro propagation of B. polystachyon were investigated. Shoot tips from in vitro plantlets were cultured in Murashige and Skoog's (MS) media with heavy metals ranging from 1 to 200 µM to induce abiotic stress and enhance the accumulation of phenolic compounds. After three weeks, MS medium with 1 µM of lead (II) supported the highest shoot multiplication, and the maximum number of roots per explant was found in 100 µM of lead (II), whereas a higher concentration of heavy metals inhibited shoot multiplication and root development. The plantlets were hardened in a greenhouse with a 96% field survival rate. Flame atomic absorption spectroscopy (FAAS) was used to detect heavy metal contents in plant biomass. At both 200 µM and 50 µM concentrations, the greatest accumulation of mercury (II) was observed in the roots (16.94 ± 0.44 µg/g) and shoots (17.71 ± 0.66 µg/g), respectively. Similarly, lead (II) showed the highest accumulation in roots (17.10 ± 0.54 µg/g) and shoots (7.78 ± 0.26 µg/g) at 200 µM and 50 µM exposures, respectively. Reverse-phase high-performance liquid chromatography (RP-HPLC) identified and quantified various phenolic compounds in B. polystachyon leaves, including gallic acid, caffeic acid, vanillic acid, p-coumaric acid, ellagic acid, rosmarinic acid, and trans-cinnamic acid. These compounds were found in different forms, such as free, esterified, and glycosylated. Mercury (II)-exposed plants exhibited elevated levels of vanillic acid (1959.1 ± 3.66 µg/g DW), ellagic acid (213.55 ± 2.11 µg/g DW), and rosmarinic acid (187.72 ± 1.22 µg/g DW). Conversely, lead (II)-exposed plants accumulated higher levels of caffeic acid (42.53±0.61 µg/g DW) and p-coumaric acid (8.04 ± 0.31 µg/g DW). Trans-cinnamic acid was the predominant phenolic compound in control plants, with a concentration of 207.74 ± 1.45 µg/g DW. These results suggest that sublethal doses of heavy metals can act as abiotic elicitors, enhancing the production of phenolic compounds in B. polystachyon. The present work has the potential to open up new commercial opportunities in the pharmaceutical industry.
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Affiliation(s)
- Sumanta Das
- Department of Biotechnology, The University of Burdwan, Burdwan 713104, West Bengal, India; (K.W.S.); (M.M.)
| | - Kaniz Wahida Sultana
- Department of Biotechnology, The University of Burdwan, Burdwan 713104, West Bengal, India; (K.W.S.); (M.M.)
| | - Moupriya Mondal
- Department of Biotechnology, The University of Burdwan, Burdwan 713104, West Bengal, India; (K.W.S.); (M.M.)
| | - Indrani Chandra
- Department of Biotechnology, The University of Burdwan, Burdwan 713104, West Bengal, India; (K.W.S.); (M.M.)
| | - Ashwell R. Ndhlala
- Department of Plant Production, Soil Science and Agricultural Engineering, Green Biotechnologies Research Centre of Excellence, University of Limpopo, Private Bag X1106, Sovenga 0727, South Africa
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Samal I, Bhoi TK, Raj MN, Majhi PK, Murmu S, Pradhan AK, Kumar D, Paschapur AU, Joshi DC, Guru PN. Underutilized legumes: nutrient status and advanced breeding approaches for qualitative and quantitative enhancement. Front Nutr 2023; 10:1110750. [PMID: 37275642 PMCID: PMC10232757 DOI: 10.3389/fnut.2023.1110750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 05/02/2023] [Indexed: 06/07/2023] Open
Abstract
Underutilized/orphan legumes provide food and nutritional security to resource-poor rural populations during periods of drought and extreme hunger, thus, saving millions of lives. The Leguminaceae, which is the third largest flowering plant family, has approximately 650 genera and 20,000 species and are distributed globally. There are various protein-rich accessible and edible legumes, such as soybean, cowpea, and others; nevertheless, their consumption rate is far higher than production, owing to ever-increasing demand. The growing global urge to switch from an animal-based protein diet to a vegetarian-based protein diet has also accelerated their demand. In this context, underutilized legumes offer significant potential for food security, nutritional requirements, and agricultural development. Many of the known legumes like Mucuna spp., Canavalia spp., Sesbania spp., Phaseolus spp., and others are reported to contain comparable amounts of protein, essential amino acids, polyunsaturated fatty acids (PUFAs), dietary fiber, essential minerals and vitamins along with other bioactive compounds. Keeping this in mind, the current review focuses on the potential of discovering underutilized legumes as a source of food, feed and pharmaceutically valuable chemicals, in order to provide baseline data for addressing malnutrition-related problems and sustaining pulse needs across the globe. There is a scarcity of information about underutilized legumes and is restricted to specific geographical zones with local or traditional significance. Around 700 genera and 20,000 species remain for domestication, improvement, and mainstreaming. Significant efforts in research, breeding, and development are required to transform existing local landraces of carefully selected, promising crops into types with broad adaptability and economic viability. Different breeding efforts and the use of biotechnological methods such as micro-propagation, molecular markers research and genetic transformation for the development of underutilized crops are offered to popularize lesser-known legume crops and help farmers diversify their agricultural systems and boost their profitability.
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Affiliation(s)
- Ipsita Samal
- Department of Entomology, Faculty of Agriculture, Sri Sri University, Cuttack, Odisha, India
| | - Tanmaya Kumar Bhoi
- Forest Protection Division, ICFRE-Arid Forest Research Institute, Jodhpur, India
| | - M. Nikhil Raj
- Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Prasanta Kumar Majhi
- Regional Research and Technology Transfer Station, Odisha University of Agriculture and Technology, Keonjhar, Odisha, India
| | - Sneha Murmu
- ICAR-Indian Agricultural Statistics Research Institute, New Delhi, India
| | | | - Dilip Kumar
- ICAR-National Institute of Agricultural Economics and Policy Research, New Delhi, India
| | | | | | - P. N. Guru
- ICAR-Central Institute of Post-Harvest Engineering and Technology, Ludhiana, India
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Utilization of Legume-Nodule Bacterial Symbiosis in Phytoremediation of Heavy Metal-Contaminated Soils. BIOLOGY 2022; 11:biology11050676. [PMID: 35625404 PMCID: PMC9138774 DOI: 10.3390/biology11050676] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 04/24/2022] [Accepted: 04/25/2022] [Indexed: 02/04/2023]
Abstract
Simple Summary The legume–rhizobium symbiosis is one of the most beneficial interactions with high importance in agriculture, as it delivers nitrogen to plants and soil, thereby enhancing plant growth. Currently, this symbiosis is increasingly being exploited in phytoremediation of metal contaminated soil to improve soil fertility and simultaneously metal extraction or stabilization. Rhizobia increase phytoremediation directly by nitrogen fixation, protection of plants from pathogens, and production of plant growth-promoting factors and phytohormones. Abstract With the increasing industrial activity of the growing human population, the accumulation of various contaminants in soil, including heavy metals, has increased rapidly. Heavy metals as non-biodegradable elements persist in the soil environment and may pollute crop plants, further accumulating in the human body causing serious conditions. Hence, phytoremediation of land contamination as an environmental restoration technology is desirable for both human health and broad-sense ecology. Legumes (Fabaceae), which play a special role in nitrogen cycling, are dominant plants in contaminated areas. Therefore, the use of legumes and associated nitrogen-fixing rhizobia to reduce the concentrations or toxic effects of contaminants in the soil is environmentally friendly and becomes a promising strategy for phytoremediation and phytostabilization. Rhizobia, which have such plant growth-promoting (PGP) features as phosphorus solubilization, phytohormone synthesis, siderophore release, production of beneficial compounds for plants, and most of all nitrogen fixation, may promote legume growth while diminishing metal toxicity. The aim of the present review is to provide a comprehensive description of the main effects of metal contaminants in nitrogen-fixing leguminous plants and the benefits of using the legume–rhizobium symbiosis with both wild-type and genetically modified plants and bacteria to enhance an efficient recovery of contaminated lands.
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Ramya KR, Tripathi K, Pandey A, Barpete S, Gore PG, Raina AP, Khawar KM, Swain N, Sarker A. Rediscovering the Potential of Multifaceted Orphan Legume Grasspea- a Sustainable Resource With High Nutritional Values. Front Nutr 2022; 8:826208. [PMID: 35281763 PMCID: PMC8906286 DOI: 10.3389/fnut.2021.826208] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/27/2021] [Indexed: 11/13/2022] Open
Abstract
The genus Lathyrus consists of more than 184 herbaceous annual and perennial species suitable for multifaceted sustainable food and feed production system in the arid and semi-arid regions of the world. The grasspea is a promising source of protein nutrition. However, its potential is not being utilized fully due to the presence of neurotoxin content (β-N-oxalyl-l-α, β diaminopropionic acid, β-ODAP), a causal agent of non-reversible lower limbs paralysis. The high protein contents in seeds and leaves with ~90% digestibility make it sustainable super food to beat protein malnutrition in future. Therefore, it is desired to breed new grasspea cultivars with low β-ODAP contents. Limited research has been carried out to date about this feature. A draft genome sequence of grasspea has been recently published that is expected to play a vital role in breeding and identifying the genes responsible for biosynthesis pathway of β-ODAP contents in grasspea. Efforts to increase awareness about the importance of genus Lathyrus and detoxify β-ODAP in grasspea are desired and are in progress. Presently, in South Asia, systematic and dedicated efforts to support the farmers in the grasspea growing regions by disseminating low β-ODAP varieties has resulted in a considerable improvement in reducing the incidence of neurolathyrism. It is expected that the situation will improve further by mainstreaming grasspea cultivation by implementing different approaches such as the development and use of low β-ODAP varieties, strengthening government policies and improved detox methods. The present review provides insight into the multifaceted characteristics of sustainable nutritious grasspea in the global and Indian perspective.
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Affiliation(s)
- K. R. Ramya
- Division of Plant Genetic Resources, Indian Council of Agricultural Research-Indian Agricultural Research Institute, New Delhi, India
| | - Kuldeep Tripathi
- Indian Council of Agricultural Research-National Bureau of Plant Genetic Resources, New Delhi, India
- *Correspondence: Kuldeep Tripathi
| | - Anjula Pandey
- Indian Council of Agricultural Research-National Bureau of Plant Genetic Resources, New Delhi, India
| | - Surendra Barpete
- International Center for Agricultural Research in the Dry Areas-Food Legume Research Platform, Amlaha, India
| | - Padmavati G. Gore
- Indian Council of Agricultural Research-National Bureau of Plant Genetic Resources, New Delhi, India
| | - Archana Peshin Raina
- Indian Council of Agricultural Research-National Bureau of Plant Genetic Resources, New Delhi, India
| | - Khalid Mahmood Khawar
- Department of Field Crops, Faculty of Agriculture, Ankara University, Ankara, Turkey
| | - Nigamananda Swain
- International Center for Agricultural Research in the Dry Areas-Food Legume Research Platform, Amlaha, India
| | - Ashutosh Sarker
- International Center for Agricultural Research in the Dry Areas-Food Legume Research Platform, Amlaha, India
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Kumar J, Sen Gupta D, Djalovic I, Kumar S, Siddique KHM. Root-omics for drought tolerance in cool-season grain legumes. PHYSIOLOGIA PLANTARUM 2021; 172:629-644. [PMID: 33314181 DOI: 10.1111/ppl.13313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
Root traits can be exploited to increase the physiological efficiency of crop water use under drought. Root length, root hairs, root branching, root diameter, and root proliferation rate are genetically defined traits that can help to improve the water productivity potential of crops. Recently, high-throughput phenotyping techniques/platforms have been used to screen the germplasm of major cool-season grain legumes for root traits and their impact on different physiological processes, including nutrient uptake and yield potential. Advances in omics approaches have led to the dissection of genomic, proteomic, and metabolomic structures of these traits. This knowledge facilitates breeders to improve the water productivity and nutrient uptake of cultivars under limited soil moisture conditions in major cool-season grain legumes that usually face terminal drought. This review discusses the advances in root traits and their potential for developing drought-tolerant cultivars in cool-season grain legumes.
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Affiliation(s)
- Jitendra Kumar
- Division of Crop Improvement, ICAR-Indian Institute of Pulses Research, Kanpur, India
| | - Debjyoti Sen Gupta
- Division of Crop Improvement, ICAR-Indian Institute of Pulses Research, Kanpur, India
| | - Ivica Djalovic
- Maize Department, Institute of Field and Vegetable Crops, Novi Sad, Serbia
| | - Shiv Kumar
- Biodiversity and Crop Improvement Program, International Centre for Agricultural Research in the Dry Areas (ICARDA), Rabat, Morocco
| | - Kadambot H M Siddique
- The UWA Institute of Agriculture and School of Agriculture and Environment, The University of Western Australia, Perth, Western Australia, Australia
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Khalofah A, Migdadi H, El-Harty E. Antioxidant Enzymatic Activities and Growth Response of Quinoa ( Chenopodium quinoa Willd) to Exogenous Selenium Application. PLANTS (BASEL, SWITZERLAND) 2021; 10:719. [PMID: 33917228 PMCID: PMC8068041 DOI: 10.3390/plants10040719] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/03/2021] [Accepted: 04/04/2021] [Indexed: 01/24/2023]
Abstract
Selenium is a trace element essential to many organisms, including higher plants. At low concentrations, it enhances growth and development; however, it is toxic at high concentrations. The development of crops with proper levels of selenium will be worth for both nutrition and Se-based therapeutics. This study aimed to investigate the morphological, physiological, and biochemical responses of the quinoa plant to 0, 2.5, 5, 10, and 20 mg/L of Na2SeO3·5H2O. Selenium at low concentrations (2.5 and 5 mg/L), quinoa plant showed a significant increase of growth parameters, relative water content, photosynthetic pigments, proline, total soluble sugars, and antioxidant enzymes activities as (superoxide dismutase (SOD), catalase (CAT), peroxidase (POD, ascorbate peroxidase (APX), and glutathione reductase (GR)), and contents of malondialdehyde (MDA) and H2O2 were reduced. However, high concentrations (10 and 20) mg/L caused a decrease in plant growth parameters, relative water content, and photosynthetic pigments. In contrast, excess selenium increased the oxidative stress monitored by hydrogen peroxide and lipid peroxidation levels. The enzymatic antioxidant system responded to the selenium supply significantly increased. Osmolytes compounds, such as total sugars and proline, increased in selenium-treated plants. The increase in these osmolytes compounds may show a defense mechanism for the osmotic readjustment of quinoa plants to mitigate the toxicity caused by selenium. This study shows the morphological and physiological responses that must be considered for success in the sustainable cultivation of quinoa plants in environments containing excess selenium.
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Affiliation(s)
- Ahlam Khalofah
- Biology Department, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia;
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha 61413, Saudi Arabia
| | - Hussein Migdadi
- Department of Plant Production, King Saud University, College of Food and Agriculture Sciences, Riyadh 11461, Saudi Arabia;
- National Agricultural Research Center, Baqa 19381, Jordan
| | - Ehab El-Harty
- Department of Plant Production, King Saud University, College of Food and Agriculture Sciences, Riyadh 11461, Saudi Arabia;
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Spencer PS, Palmer VS. Direct and Indirect Neurotoxic Potential of Metal/Metalloids in Plants and Fungi Used for Food, Dietary Supplements, and Herbal Medicine. TOXICS 2021; 9:57. [PMID: 33809439 PMCID: PMC7998285 DOI: 10.3390/toxics9030057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/11/2021] [Accepted: 03/12/2021] [Indexed: 01/09/2023]
Abstract
Plants and mushrooms bioconcentrate metals/metalloids from soil and water such that high levels of potentially neurotoxic elements can occur in cultivated and wild species used for food. While the health effects of excessive exposure to metals/metalloids with neurotoxic potential are well established, overt neurological disease from prolonged ingestion of contaminated botanicals has not been recognized. However, the presence of metal elements may affect levels of botanical neurotoxins in certain plants and mushrooms that are established causes of acute and chronic neurological disease.
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Affiliation(s)
- Peter S. Spencer
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239-3098, USA;
- Oregon Institute of Occupational Health Sciences, Oregon Health & Science University, Portland, OR 97239-3098, USA
| | - Valerie S. Palmer
- Department of Neurology, Oregon Health & Science University, Portland, OR 97239-3098, USA;
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Foliar Application of 24-Epibrassinolide Improves Growth, Ascorbate-Glutathione Cycle, and Glyoxalase System in Brown Mustard ( Brassica juncea (L.) Czern.) under Cadmium Toxicity. PLANTS 2020; 9:plants9111487. [PMID: 33158232 PMCID: PMC7694298 DOI: 10.3390/plants9111487] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 10/26/2020] [Accepted: 10/28/2020] [Indexed: 01/24/2023]
Abstract
Cadmium (Cd) metal toxicity is a crucial ecological matter that requires immediate efforts to mitigate it. Brassica juncea plants were exposed to Cd (0 and 200 µM as CdSO4) and foliar application of 24-Epibrassinolide (EBR) (0, 10−7 and 10−5 M). The toxic effect of Cd was evident in terms of declined growth and biomass yield, lowered levels of pigment content and chlorophyll fluorescence, and reduction in gas exchange attributes. The levels of proline and glycinebetaine increased in response to Cd treatment. There was an imperative rise in the contents of H2O2 and malondialdehyde as well as electrolyte leakage in the Cd-stressed plants. With the application of EBR, there was a significant replenishment in growth attributes and photosynthetic efficacy. The contents of ROS (reactive oxygen species) and malondialdehyde as well as electrolyte leakage were reduced by the hormone supplementation. Enhancement in the contents of glutathione and ascorbic acid, and the activities of enzymes of the antioxidative defense system and glyoxalase system was recorded in response to Cd as well as hormone treatment. The in situ levels of Cd in roots and shoot were augmented in response to Cd treatment, but were found to be lowered by the EBR application.
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12
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Abdelkrim S, Jebara SH, Saadani O, Abid G, Taamalli W, Zemni H, Mannai K, Louati F, Jebara M. In situ effects of Lathyrus sativus- PGPR to remediate and restore quality and fertility of Pb and Cd polluted soils. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 192:110260. [PMID: 32050135 DOI: 10.1016/j.ecoenv.2020.110260] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/25/2020] [Accepted: 01/27/2020] [Indexed: 06/10/2023]
Abstract
Rehabilitation of heavy metals contaminated soils using association between legumes and beneficial rhizospheric microorganisms such as plant growth-promoting bacteria (PGPR) is a major challenge in agronomy. The present study focuses on assessing the impact of field inoculation with I1 (Rhizobium leguminosarum (M5) + Bacillus simplex + Luteibacter sp. + Variovorax sp.) and I5 (R. leguminosarum (M5) + Pseudomonas fluorescens (K23) + Luteibacter sp. + Variovorax sp.) on growth and phytoremediation potential of Lathyrus sativus plants as well as soil quality and fertility. The experimentation was carried out in mine tailings of northern Tunisia. Obtained Results indicated that the in situ inoculation with I1 and I5 significantly increased the shoots (47% and 22%) and roots dry weights (22% and 29%), as well as nodules number (48% and 31%), respectively, compared to uninoculated plants. The maximum Pb accumulation in the above-ground tissue was recorded in plants inoculated with I5 (1180.85 mg kg-1 DW). At the same time, we noticed a reduction in total Pb and Cd in the rhizosphere of inoculated plots mainly in those inoculated with I5 reaching 46% and 61%, respectively, compared to uninoculated plots. Likewise, I5 inoculum significantly enhanced soil total nitrogen (35%) and available phosphorus (100%), as well as β-glucosidase (16%), urease (32%) and alkaline phosphatase (12%) activities. Here we demonstrate the usefulness of L. sativus inoculated with I5 inoculum formed by mixing efficient and heavy metals resistant PGPR to boost an efficient reclamation of Cd and Pb contaminated soils and, ultimately, to improve their quality and fertility.
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Affiliation(s)
- Souhir Abdelkrim
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia; National Agronomic Institute of Tunisia, University of Carthage, Tunis, Tunisia
| | - Salwa Harzalli Jebara
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia
| | - Omar Saadani
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia
| | - Ghassen Abid
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia
| | - Wael Taamalli
- Laboratory of Extremophile Plants, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia
| | - Hassène Zemni
- Laboratory of Plant Molecular Physiology, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia
| | - Khediri Mannai
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia
| | - Faten Louati
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia
| | - Moez Jebara
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, BP 901, 2050 Hammam Lif, Tunisia.
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El Mamoun I, Mouna F, Mohammed A, Najib B, Zine‐El Abidine T, Abdelkarim G, Didier B, Laurent L, Abdelaziz S. Zinc, lead, and cadmium tolerance and accumulation in
Cistus libanotis, Cistus albidus
, and
Cistus salviifolius
: Perspectives on phytoremediation. ACTA ACUST UNITED AC 2020. [DOI: 10.1002/rem.21638] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ibtihaj El Mamoun
- Equipe de physiologie et biotechnologie Végétales, Faculté des Sciences, Centre de biotechnologie végétale et microbienne biodiversité et environnementUniversité Mohammed V de RabatRabat Morocco
| | - Fahr Mouna
- Equipe de physiologie et biotechnologie Végétales, Faculté des Sciences, Centre de biotechnologie végétale et microbienne biodiversité et environnementUniversité Mohammed V de RabatRabat Morocco
| | | | - Bendaou Najib
- Equipe de physiologie et biotechnologie Végétales, Faculté des Sciences, Centre de biotechnologie végétale et microbienne biodiversité et environnementUniversité Mohammed V de RabatRabat Morocco
| | - Triqui Zine‐El Abidine
- Equipe de physiologie et biotechnologie Végétales, Faculté des Sciences, Centre de biotechnologie végétale et microbienne biodiversité et environnementUniversité Mohammed V de RabatRabat Morocco
| | - Guedira Abdelkarim
- Equipe de physiologie et biotechnologie Végétales, Faculté des Sciences, Centre de biotechnologie végétale et microbienne biodiversité et environnementUniversité Mohammed V de RabatRabat Morocco
| | - Bogusz Didier
- Équipe RhizogenèseInstitut de Recherche pour le Développement (IRD), UMR DIADE (IRD/UM2)Montpellier France
| | - Laplaze Laurent
- Équipe RhizogenèseInstitut de Recherche pour le Développement (IRD), UMR DIADE (IRD/UM2)Montpellier France
- Laboratoire mixte international Adaptation des Plantes et microorganismes associés aux Stress Environnementaux (LAPSE), Laboratoire Commun de Microbiologie IRD/ISRA/UCADCentre de Recherche de Bel AirDakar Senegal
| | - Smouni Abdelaziz
- Equipe de physiologie et biotechnologie Végétales, Faculté des Sciences, Centre de biotechnologie végétale et microbienne biodiversité et environnementUniversité Mohammed V de RabatRabat Morocco
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14
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Zhou JM, Jiang ZC, Qin XQ, Zhang LK, Huang QB, Xu GL. Effects and Mechanisms of Calcium Ion Addition on Lead Removal from Water by Eichhornia crassipes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E928. [PMID: 32024317 PMCID: PMC7037930 DOI: 10.3390/ijerph17030928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/26/2020] [Accepted: 01/29/2020] [Indexed: 11/16/2022]
Abstract
Karst water is rich in calcium ions (Ca2+) and exhibits poor metal availability and low biodegradation efficiency. This study sought to analyze the effects and mechanisms of Ca2+ on lead (Pb) removal and absorption by Eichhornia crassipes (a floating plant common in karst areas). Moreover, the morphology and functional groups of E. crassipes in water were characterized via SEM, and FTIR. The results demonstrated that the removal rate of Pb in karst water (85.31%) was higher than that in non-karst water (77.04%); however, the Pb bioconcentration amount (BCA) in E. crassipes roots in karst water (1763 mg/kg) was lower than that in non-karst water (2143 mg/kg). With increased Ca2+ concentrations (60, 80, and 100 mg/L) in karst water, the Pb removal rate increased (85.31%, 88.87%, and 92.44%), the Pb BCA decreased (1763, 1317, and 1095 mg/kg), and the Ca BCA increased (6801, 6955, and 9368 mg/kg), which was attributed to PbCO3 and PbSO4 precipitation and competitive Ca and Pb absorption. High Ca2+ concentrations increased the strength of cation exchange, alleviated the fracture degree of fibrous roots, reduced the atrophy of vascular bundles, protected the cell wall, promoted C-O combined with Pb, enhanced the strength of O‒H, SO42-, C=O, and reduced the oxidization of alkynyl acetylene bonds.
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Affiliation(s)
- Jin-mei Zhou
- Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
- Faculty of Engineering, China University of Geosciences, Wuhan 430074, China;
- Key Laboratory of Karst Ecosystem and Treatment of Rocky Desertification, Ministry of Natural Resources, Guilin 541004, China
| | - Zhong-cheng Jiang
- Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
- Key Laboratory of Karst Ecosystem and Treatment of Rocky Desertification, Ministry of Natural Resources, Guilin 541004, China
- Key Laboratory of Karst Dynamics, Ministry of Natural Resources, Guilin 541004, China
| | - Xiao-qun Qin
- Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
- Key Laboratory of Karst Ecosystem and Treatment of Rocky Desertification, Ministry of Natural Resources, Guilin 541004, China
| | - Lian-kai Zhang
- Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
- Key Laboratory of Karst Ecosystem and Treatment of Rocky Desertification, Ministry of Natural Resources, Guilin 541004, China
| | - Qi-bo Huang
- Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
| | - Guang-li Xu
- Faculty of Engineering, China University of Geosciences, Wuhan 430074, China;
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15
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Pirzadah TB, Malik B, Tahir I, Rehman RU, Hakeem KR, Alharby HF. Aluminium stress modulates the osmolytes and enzyme defense system in Fagopyrum species. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 144:178-186. [PMID: 31574383 DOI: 10.1016/j.plaphy.2019.09.033] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 09/18/2019] [Accepted: 09/20/2019] [Indexed: 06/10/2023]
Abstract
The present investigation describes aluminum-induced changes in the leaves of two buckwheat species using both physiological and biochemical indices. With increasing levels of Al (viz. 100, 200 and 300 μM), the mean length of root, shoot as well as their biomass accumulation decreased linearly with respect to control. Tolerance test of F. kashmirianum revealed that it was more tolerant to Al-stress than F. tataricum as revealed by higher accumulation of Al in its roots without any significant damage. Translocation factor (TF) values of both species were found to be < 1, indicating more Al is restrained in roots. Total chlorophyll showed a non-significant increase in F. tataricum while as decreased in F. kashmirianum at 300 μM concentration besides, the carotenoid content exhibited inclined trend in F. tataricum and showed a concomitant decrease in F. kashmirianum. The anthocyanin level showed a non-significant decline in F. kashmirianum. Exposure to different Al-treatments enhances malondialdehyde (MDA), H2O2 and membrane stability index (MSI) in both species, with increases being greater in F. kashmirianum than F. tataricum as also revealed by DAB-mediated in vivo histo-chemical detection method. The osmolyte level in general were elevated in both buckwheat species however, enhancement was more in F. tataricum than F. kashmirianum. The activities of antioxidant enzymes viz. superoxide dismutase (SOD), ascorbate peroxidase (APX), guaiacol peroxidase (POD), glutathione reductase (GR), glutathione-S-transferase (GST) were positively correlated with Al-treatment except catalase (CAT) which exhibits a reverse outcome in F. kashmirianum. The present investigation could play an essential role to better understand the detoxification mechanisms of Al in plants.
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Affiliation(s)
- Tanveer Bilal Pirzadah
- Department of Bioresources, University of Kashmir, Srinagar, Jammu and Kashmir, 190006, India; Department of Bioresources, Amar Singh College (Cluster University), Srinagar, Jammu and Kashmir, 190006, India
| | - Bisma Malik
- Department of Bioresources, University of Kashmir, Srinagar, Jammu and Kashmir, 190006, India
| | - Inayatullah Tahir
- Department of Botany, University of Kashmir, Srinagar, Jammu and Kashmir, 190006, India
| | - Reiaz Ul Rehman
- Department of Bioresources, University of Kashmir, Srinagar, Jammu and Kashmir, 190006, India.
| | - Khalid Rehman Hakeem
- Department of Biological Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia; Princess Dr Najla Bint Saud Al- Saud Center for Excellence Research in Biotechnology, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Hesham F Alharby
- Department of Biological Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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16
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Abdelkrim S, Jebara SH, Jebara M. Antioxidant systems responses and the compatible solutes as contributing factors to lead accumulation and tolerance in Lathyrus sativus inoculated by plant growth promoting rhizobacteria. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 166:427-436. [PMID: 30292109 DOI: 10.1016/j.ecoenv.2018.09.115] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 09/13/2018] [Accepted: 09/26/2018] [Indexed: 05/07/2023]
Abstract
Short-term lead (Pb) uptake by plants is important to better understand the mechanisms of metal uptake, plant tolerance and detoxification strategy. Thus we examined the response of Lathyrus sativus to 1 mM Pb application in hydroponic sorption kinetics at 24, 48 and 72 h, and we investigated the contribution of two inocula I1 (R. leguminosarum (M5) + B. simplex + Luteibacter sp + Variovorax sp) and I5 (R. leguminosarum (M5) + P. fluorescens (K23) + Luteibacter sp + Variovorax sp) in plant mechanisms responses. Pb application induced its immediate uptake by L. sativus with highest concentrations, which increased gradually mostly for inoculated plants. The control plant shoots accumulated the highest concentration of lead at 24 h. However, at 48 and 72 h this potential uptake was significantly enhanced in plants inoculated with I5. Moreover, inoculation increased significantly root Pb-uptake with the maximum reached at 72 h. We observed a progressive decline in chlorophyll contents after Pb exposure in control plants that was higher than in PGPR-treated plants and the greatest improvement (152%) was recorded in I5 inoculated leaves. The PGPR also promoted significant elevation in the carotenoid content with the highest increases (188%) in plants inoculated with I5 at 72 h. Data illustrated remarkable augmentation in malondialdehyde, ion leakage level and decrease in membrane stability. Whereas, inoculation enhanced significantly cellular membrane integrity through increases in membrane stability index as compared to the control plants. In response to Pb, proline biosynthesis, as well as total soluble sugars concentration, immediately increased and the stimulatory effect was more pronounced in inoculated plants at 72 h. Lead considerably altered the activities of SOD, GPOX, CAT and APX enzymes in leaves and roots in a time- and inoculation- dependent manner. It is concluded that antioxidant enzymes, carotenoids, soluble sugars and proline were involved in the main defense mechanism and tolerance of Lathyrus sativus to Pb oxidative stress, as well lead accumulation, and are likely to operate in combination.
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Affiliation(s)
- Souhir Abdelkrim
- Center of Biotechnology of Borj Cedria, Laboratory of Legumes, BP 901, 2050 Hammam Lif, Tunisia; National Agronomic Institute of Tunisia, University of Carthage, Tunis, Tunisia
| | - Salwa Harzalli Jebara
- Center of Biotechnology of Borj Cedria, Laboratory of Legumes, BP 901, 2050 Hammam Lif, Tunisia
| | - Moez Jebara
- Center of Biotechnology of Borj Cedria, Laboratory of Legumes, BP 901, 2050 Hammam Lif, Tunisia.
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17
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Kurtyka R, Burdach Z, Siemieniuk A, Karcz W. Single and combined effects of Cd and Pb on the growth, medium pH, membrane potential and metal contents in maize (Zea mays L.) coleoptile segments. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:8-16. [PMID: 29857232 DOI: 10.1016/j.ecoenv.2018.05.046] [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: 02/06/2018] [Revised: 05/16/2018] [Accepted: 05/20/2018] [Indexed: 05/20/2023]
Abstract
The mechanisms of the toxic effects of Cd and Pb on plant cell growth are still poorly understood. In particular, little is known about their interactive effects, which usually occur in the environment. Moreover, the data that do exist in the literature are controversial. This study describes experiments that were performed with maize (Zea mays) coleoptile segments, which is a classical model system for studies of plant cell elongation growth. Cadmium and lead, which were added at 0.1 mM, reduced the endogenous and IAA-induced elongation growth of maize coleoptile cells. When both metals were added together or in sequence, their effect on IAA-induced growth was more toxic. The medium pH changes, which were measured simultaneously with growth, indicated that while Pb stopped IAA-induced proton extrusion, Cd only partially diminished it. Although Cd was generally more accumulated than Pb in the maize coleoptile segments, when IAA was added together with Pb, it significantly increased the accumulation of the metal. The short-term electrophysiological experiments showed that the addition of Cd caused the depolarisation of the membrane potential (Em), whereas Pb caused membrane hyperpolarisation. In the long-term electrophysiological experiments, it was found that the Cd-induced Em changes are complex. In conclusion, these results suggest that the effects of Cd and Pb as well as their combination on the elongation growth of maize coleoptile cells and the accumulation of the metals result, among others, from different ionic mechanisms by which each metal change the membrane potential of the cells.
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Affiliation(s)
- Renata Kurtyka
- Department of Plant Physiology, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, PL-40-032 Katowice, Poland.
| | - Zbigniew Burdach
- Department of Plant Physiology, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, PL-40-032 Katowice, Poland
| | - Agnieszka Siemieniuk
- Department of Plant Physiology, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, PL-40-032 Katowice, Poland
| | - Waldemar Karcz
- Department of Plant Physiology, Faculty of Biology and Environmental Protection, University of Silesia, Jagiellońska 28, PL-40-032 Katowice, Poland
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18
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Heavy metal accumulation in Lathyrus sativus growing in contaminated soils and identification of symbiotic resistant bacteria. Arch Microbiol 2018; 201:107-121. [PMID: 30276423 DOI: 10.1007/s00203-018-1581-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 07/24/2018] [Accepted: 09/28/2018] [Indexed: 02/06/2023]
Abstract
In this study, two populations of leguminous plants Lathyrus sativus were grown in four soils that were collected from sites differently contaminated by heavy metals. Evaluations included basic soil properties, concentrations of major nutrients and four metals (copper, zinc, lead and cadmium) in these soils. Investigation of Lathyrus sativus response to contamination showed that the increase of heavy metal concentration in soils affected biomass of plant, number of nodules and plant metal uptake. Heavy metal tolerance of 46 isolated bacteria from the root nodules was evaluated and demonstrated that the maximum concentration of Cd, Pb, Cu and Zn tolerated by strains were 0.8, 2.5, 0.2, and 0.5 mM, respectively. Twenty-two isolates were tested for their effects on plant biomass production and nodule formation and showed that only R. leguminosarum nodulated Lathyrus sativus, while some bacteria improved the shoot and root dry biomass. Sequences of their 16S rDNA gene fragments were also obtained and evaluated for tentative identification of the isolates which revealed different bacterial genera represented by Rhizobium sp, Rhizobium leguminosarum, Sinorhizobium meliloti, Pseudomonas sp, Pseudomonas fluorescens, Luteibacter sp, Variovorax sp, Bacillus simplex and Bacillus megaterium. The existence of Pb- and Cd-resistant genes (PbrA and CadA) in these bacteria was determined by PCR, and it showed high homology with PbrA and CadA genes from other bacteria. The tested resistant population was able to accumulate high concentrations of Pb and Cd in all plant parts and, therefore, can be classified as a strong metal accumulator with suitable potential for phytoremediation of Pb and Cd polluted sites. Heavy metal resistant and efficient bacteria isolated from root nodules were chosen with Lathyrus sativus to form symbiotic associations for eventual bioremediation program, which could be tested to remove pollutants from contaminated sites.
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19
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Abdelkrim S, Jebara SH, Saadani O, Jebara M. Potential of efficient and resistant plant growth-promoting rhizobacteria in lead uptake and plant defence stimulation in Lathyrus sativus under lead stress. PLANT BIOLOGY (STUTTGART, GERMANY) 2018; 20:857-869. [PMID: 29907996 DOI: 10.1111/plb.12863] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 05/08/2018] [Accepted: 06/12/2018] [Indexed: 06/08/2023]
Abstract
The ability of plant growth-promoting rhizobacteria (PGPR) to enhance Lathyrus sativus tolerance to lead (Pb) stress was investigated. Ten consortia formed by mixing four efficient and Pb-resistant PGPR strains were assessed for their beneficial effect in improving Pb (0.5 mM) uptake and in inducing the host defence system of L. sativus under hydroponic conditions based on various physiological and biochemical parameters. Lead stress significantly decreased shoot (SDW) and root (RDW) dry weight, but PGPR inoculation improved both dry weights, with highest increases in SDW and RDW of plants inoculated with I5 (R. leguminosarum (M5) + P. fluorescens (K23) + Luteibacter sp. + Variovorax sp.) and I9 (R. leguminosarum (M5) + Variovorax sp. + Luteibacter sp. + S. meliloti) by 151% and 94%, respectively. Additionally, inoculation significantly enhanced both chlorophyll and soluble sugar content, mainly in I5 inoculated leaves by 238% and 71%, respectively, despite the fact that Pb decreased these parameters. We also found that PGPR inoculation helps to reduce oxidative damage and enhances antioxidant enzyme activity, phenolic compound biosynthesis, carotenoids and proline content. PGPR inoculation increased Pb uptake in L. sativus, with highest increase in shoots of plants inoculated with I5 and I7, and in roots and nodules of plants inoculated with I1. Moreover, PGPR inoculation enhanced mineral homeostasis for Ca, Cu and Zn under Pb stress, mainly in plants inoculated with I1, I5, I7 and I9. Results of our study suggest the potential of efficient and Pb-resistant PGPR in alleviating harmful effects of metal stress via activation of various defence mechanisms and enhancing Pb uptake that promotes tolerance of L. sativus to Pb stress.
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Affiliation(s)
- S Abdelkrim
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, Hammam Lif, Tunisia
- National Agronomic Institute of Tunisia, University of Carthage, Tunis, Tunisia
| | - S H Jebara
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, Hammam Lif, Tunisia
| | - O Saadani
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, Hammam Lif, Tunisia
| | - M Jebara
- Laboratory of Legumes, Center of Biotechnology of Borj Cedria, Hammam Lif, Tunisia
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20
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Rock Phosphate Solubilization and Heavy Metals Resistance of Rhizbacteria Isolated from Nodules of Lathyrus ochrus. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2018. [DOI: 10.22207/jpam.12.2.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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21
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Abdelkrim S, Jebara SH, Saadani O, Chiboub M, Abid G, Jebara M. Effect of Pb-resistant plant growth-promoting rhizobacteria inoculation on growth and lead uptake by Lathyrus sativus. J Basic Microbiol 2018; 58:579-589. [DOI: 10.1002/jobm.201700626] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 03/02/2018] [Accepted: 04/20/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Souhir Abdelkrim
- Center of Biotechnology of Borj Cedria; Laboratory of Legumes; Hammam Lif Tunisia
- National Agronomic Institute of Tunisia; University of Carthage; Tunis Tunisia
| | - Salwa H. Jebara
- Center of Biotechnology of Borj Cedria; Laboratory of Legumes; Hammam Lif Tunisia
| | - Omar Saadani
- Center of Biotechnology of Borj Cedria; Laboratory of Legumes; Hammam Lif Tunisia
| | - Manel Chiboub
- Center of Biotechnology of Borj Cedria; Laboratory of Legumes; Hammam Lif Tunisia
| | - Ghassen Abid
- Center of Biotechnology of Borj Cedria; Laboratory of Legumes; Hammam Lif Tunisia
| | - Moez Jebara
- Center of Biotechnology of Borj Cedria; Laboratory of Legumes; Hammam Lif Tunisia
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22
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Sharma V, Pant D. Structural basis for expanding the application of bioligand in metal bioremediation: A review. BIORESOURCE TECHNOLOGY 2018; 252:188-197. [PMID: 29307506 DOI: 10.1016/j.biortech.2017.12.070] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 12/20/2017] [Accepted: 12/21/2017] [Indexed: 06/07/2023]
Abstract
Bioligands (BL) present in plant and microbes are primarily responsible for their use in metal decontamination. Both primary (proteins and amino acid) and secondary (proliferated) response in the form of BL is possible in plants and microbes toward metal bioremediation. Structure of these BL have specific requirement for preferential binding towards a particular metal in biomass. The aim of this review is to explore various templates from BL (as metal host) for the metal detoxification/decontamination and associated bioremediation. Mechanistic explanation for bioremediation may involve the various processes like: (i) electron transfer; (ii) translocation; and (iii) coordination number variation. HSAB (hard and soft acid and base) concept can act as guiding principle for many such processes. It is possible to investigate various structural homolog of BL (similar to secondary response in living stage) for the possible improvement in bioremediation process.
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Affiliation(s)
- Virbala Sharma
- Department of Environmental Sciences, Central University of Himachal Pradesh, Dharamshala, Himachal Pradesh 176215, India
| | - Deepak Pant
- Department of Environmental Sciences, Central University of Himachal Pradesh, Dharamshala, Himachal Pradesh 176215, India.
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23
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Kohli SK, Handa N, Sharma A, Gautam V, Arora S, Bhardwaj R, Alyemeni MN, Wijaya L, Ahmad P. Combined effect of 24-epibrassinolide and salicylic acid mitigates lead (Pb) toxicity by modulating various metabolites in Brassica juncea L. seedlings. PROTOPLASMA 2018; 255:11-24. [PMID: 28573335 DOI: 10.1007/s00709-017-1124-x] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 05/12/2017] [Indexed: 05/12/2023]
Abstract
The present study demonstrated the combined effect of 24-epibrassinolide and salicylic acid against lead (Pb, 0.25, 0.50, and 0.75 mM) toxicity in Brassica juncea seedlings. Various parameters including water status, metal uptake, total water- and lipid-soluble antioxidants, metal chelator content (total thiols, protein-bound thiols, and non-protein-bound thiols), phenolic compounds (flavonoids, anthocyanins, and polyphenols), and organic acids were studied in 10-day-old seedlings. Dry matter content and the heavy metal tolerance index were reduced by 42.24 and 52.3%, respectively, in response to Pb treatment. Metal uptake, metal-chelating compounds, phenolic compounds, and organic acids were increased in Pb-treated seedlings as compared to control plants. The treatment of Pb-stressed seedlings with combination of EBL and SA resulted in enhancement of heavy metal tolerance index by 40.07%, water content by 1.84%, and relative water content by 23.45%. The total water- and lipid-soluble antioxidants were enhanced by 21.01 and 2.21%, respectively. In contrast, a significant decline in dry weight, metal uptake, thiol, and polyphenol contents was observed following the application of 24-epibrassinolide and salicylic acid. These observations indicate that Pb treatment has an adverse effect on B. juncea seedlings. However, co-application of 24-epibrassinolide and salicylic acid mitigates the negative effects of Pb, by lowering Pb metal uptake and enhancing the heavy metal tolerance index, water content, relative water content, antioxidative capacities, phenolic content, and organic acid levels.
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Affiliation(s)
- Sukhmeen Kaur Kohli
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Neha Handa
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Anket Sharma
- Department of Botany, DAV University, Sarmastpur, Jalandhar, 144012, India
| | - Vandana Gautam
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Saroj Arora
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India.
| | - Mohammed Nasser Alyemeni
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Leonard Wijaya
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Parvaiz Ahmad
- Department of Botany and Microbiology, Faculty of Science, King Saud University, Riyadh, 11451, Saudi Arabia.
- Department of Botany, S.P. College, Srinagar, Jammu and Kashmir, 190001, India.
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Moravcová Š, Tůma J, Dučaiová ZK, Waligórski P, Kula M, Saja D, Słomka A, Bąba W, Libik-Konieczny M. Influence of salicylic acid pretreatment on seeds germination and some defence mechanisms of Zea mays plants under copper stress. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2018; 122:19-30. [PMID: 29172102 DOI: 10.1016/j.plaphy.2017.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 11/11/2017] [Accepted: 11/12/2017] [Indexed: 05/05/2023]
Abstract
The study was focused on the influence of salicylic acid (SA) on maize seeds germination and on some physiological and biochemical processes in maize plants growing in the hydroponic culture under copper (Cu) stress. A significant influence of SA pretreatment on the advanced induction of the maize seeds metabolic activity and the level of the endogenous SA in germinated seeds and developing roots have been stated. Although, the ability of maize seeds to uptake SA and accumulate it in the germinated roots was confirmed, the growth inhibition of Cu-stressed maize seedlings was not ameliorated by SA seeds pretreatment. Cu-stressed plants exhibited a decrease in the photosynthetic pigment concentration and the increase in non-photochemical quenching (NPQ) - an indicator of an excess energy in PSII antenna assemblies lost as a heat. The amelioration effect of SA application was found only for carotenoids content which increased in stressed plants. It was also shown that maize roots growing in stress conditions significantly differed in the chemical composition in comparison to the roots of control plants, but the SA pretreatment did not affect these differences. On the other hand, it was found that SA seed pretreatment significantly influenced the ability of stressed plants to accumulate copper in the roots. It was stated that a higher level of exogenous SA application led to a lower accumulation of Cu ions in maize roots. Cu-stressed plants exhibited higher oxidative stress in roots than in leaves which was manifested as an increase in the concentration of hydrogen peroxide due to stress factor application. We observed an increase in catalase (CAT) activity in leaves of Cu-stressed plants which corresponded with a lower H2O2 content when compared with roots where the hydrogen peroxide level was higher, and the inhibition of the CAT activity was found. Furthermore, we found that the SA seed pretreatment led to a decrease in the H2O2 content in the roots of the Cu-stressed plants, but it did not influence the H2O2 level in leaves. The increase in hydrogen peroxide content in the roots of Cu-stressed plants correlated with a higher activity of the MnSODI and MnSODII isoforms. It was found that SA pretreatment caused a decrease in MnSODII activity accompanied by the decrease in H2O2 concentration. Achieved results indicated also that the changes in the chemical composition of the root tissue under copper stress constituted protection mechanisms of blocking copper flow into other plant organs. However, it might be assumed that the root tissue remodelling under Cu stress did not only prevent against the Cu ions uptake but also limited the absorption of minerals required for the normal growth leading to the inhibition of the plant development.
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Affiliation(s)
- Šárka Moravcová
- Department of Biology, Faculty of Science, University of Hradec Kralove, Hradecka 1285, 500 03 Hradec Kralove, Czech Republic.
| | - Jiří Tůma
- Department of Biology, Faculty of Science, University of Hradec Kralove, Hradecka 1285, 500 03 Hradec Kralove, Czech Republic
| | - Zuzana Kovalíková Dučaiová
- Department of Biology, Faculty of Science, University of Hradec Kralove, Hradecka 1285, 500 03 Hradec Kralove, Czech Republic
| | - Piotr Waligórski
- The Franciszek Gorski Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239, Krakow, Poland
| | - Monika Kula
- The Franciszek Gorski Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239, Krakow, Poland
| | - Diana Saja
- The Franciszek Gorski Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239, Krakow, Poland
| | - Aneta Słomka
- Institute of Botany, Department of Plant Cytology and Embryology, Jagiellonian University, Gronostajowa 9, Krakow, Poland
| | - Wojciech Bąba
- Institute of Botany, Department of Plant Ecology, Jagiellonian University, Lubicz 46, Krakow, Poland
| | - Marta Libik-Konieczny
- The Franciszek Gorski Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239, Krakow, Poland.
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Malar S, Shivendra Vikram S, JC Favas P, Perumal V. Lead heavy metal toxicity induced changes on growth and antioxidative enzymes level in water hyacinths [Eichhornia crassipes (Mart.)]. BOTANICAL STUDIES 2016; 55:54. [PMID: 28597420 PMCID: PMC5430585 DOI: 10.1186/s40529-014-0054-6] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Accepted: 06/26/2014] [Indexed: 05/18/2023]
Abstract
BACKGROUND Lead (Pb) heavy metal pollution in water bodies is one of the serious problems across the world. This study was designed to find out the effect of Pb toxicity on physiological and biochemical changes in Eichhornia crassipes (water hyacinth) seedlings. RESULTS The plant growth was significantly inhibited (50%) at 1000 mg/L Pb concentration. Accumulation of Pb was higher in root than in shoot tissues. The maximum level of Pb accumulation was noticed in roots (5.45%) followed by petiole (2.72%) and leaf tissues (0.66%). Increasing the Pb concentration gradually decreased the chlorophyll content. Intracellular distribution of Pb was also studied using SEM-EDX, where the Pb deposition was observed in both root and leaf tissues. MDA content increased in both the leaf and root tissues up to the 400 mg/L Pb treatment and slightly decreased at higher concentrations. The activity of antioxidative enzymes, such as APX and POX, positively correlated with Pb treatment, while in the case of SOD and CAT enzymes increased up to 800 mg/L treatment and then slightly decreased at higher concentration in both leaf and root tissues. CONCLUSIONS These results suggest that water hyacinth plants have efficient mechanism to tolerate Pb toxicity, as evidenced by an increased level of antioxidative enzymes. Results clearly indicate that water hyacinth is a feasible plant for hyperaccumulation of heavy metals from polluted wetlands.
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Affiliation(s)
- Srinivasan Malar
- Department of Biotechnology, Plant Genetic Engineering and Molecular Biology Lab, Periyar University, Periyar Palkalai Nagar, Salem, 636 011 TN India
| | | | - Paulo JC Favas
- School of Life Sciences and the Environment, University of Trás-os-Montes e Alto Douro, UTAD, Quinta de Prados, Vila Real, 5000-801 Portugal
| | - Venkatachalam Perumal
- Department of Biotechnology, Plant Genetic Engineering and Molecular Biology Lab, Periyar University, Periyar Palkalai Nagar, Salem, 636 011 TN India
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Saadani O, Fatnassi IC, Chiboub M, Abdelkrim S, Barhoumi F, Jebara M, Jebara SH. In situ phytostabilisation capacity of three legumes and their associated Plant Growth Promoting Bacteria (PGPBs) in mine tailings of northern Tunisia. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 130:263-269. [PMID: 27151677 DOI: 10.1016/j.ecoenv.2016.04.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 04/23/2016] [Accepted: 04/25/2016] [Indexed: 06/05/2023]
Abstract
PGPBs-legumes associations represent an alternative procedure for phytostabilisation of heavy metals polluted soils mainly generated by industrial and agricultural practices. In this study we evaluated the capacity of Vicia faba, Lens culinaris and Sulla coronaria, inoculated in situ by specific heavy metals resistant inocula, for the phytostabilisation of copper, lead and cadmium respectively. The experimentation was performed in mine tailings of northern Tunisia. Results proved that inoculation enhanced roots and shoots biomass production of faba bean by 14% and 12%, respectively, and significantly improved pods yield by 91%. In lentil, the inoculation ameliorated shoot biomass up to 27%. The highest nitrogen fixation was recorded by Sulla coronaria. The three symbioses accumulated heavy metals essentially in roots, and poorly in shoots. In addition, cadmium accumulation in roots of inoculated sulla was enhanced by 39%. Furthermore, inoculations decreased heavy metals availability in the soil up to -10% of Cu and -47% of Pb respectively in roots of faba bean and lentil. Our results suggested a positive effect of co-inoculation of legumes by appropriate heavy metals resistant PGPBs for the phytostabilisation of mine tailings. Elsewhere, the enhancement in the antioxidant enzymes activities demonstrated the role of the three inocula to alleviate the heavy metals induced stress.
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Affiliation(s)
- Omar Saadani
- Centre de Biotechnologie Borj Cedria, University Tunis El Manar, BP 901, 2050 Hammam Lif, Tunisia.
| | - Imen Challougui Fatnassi
- Centre de Biotechnologie Borj Cedria, University Tunis El Manar, BP 901, 2050 Hammam Lif, Tunisia
| | - Manel Chiboub
- Centre de Biotechnologie Borj Cedria, University Tunis El Manar, BP 901, 2050 Hammam Lif, Tunisia
| | - Souhir Abdelkrim
- Centre de Biotechnologie Borj Cedria, University Tunis El Manar, BP 901, 2050 Hammam Lif, Tunisia
| | - Fathi Barhoumi
- Centre de Biotechnologie Borj Cedria, University Tunis El Manar, BP 901, 2050 Hammam Lif, Tunisia
| | - Moez Jebara
- Centre de Biotechnologie Borj Cedria, University Tunis El Manar, BP 901, 2050 Hammam Lif, Tunisia
| | - Salwa Harzalli Jebara
- Centre de Biotechnologie Borj Cedria, University Tunis El Manar, BP 901, 2050 Hammam Lif, Tunisia
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Jusselme MD, Miambi E, Mora P, Diouf M, Rouland-Lefèvre C. Increased lead availability and enzyme activities in root-adhering soil of Lantana camara during phytoextraction in the presence of earthworms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2013; 445-446:101-109. [PMID: 23321070 DOI: 10.1016/j.scitotenv.2012.12.054] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Revised: 12/13/2012] [Accepted: 12/13/2012] [Indexed: 06/01/2023]
Abstract
Earthworms are known to increase availability of heavy metals in soils and also play an important role in maintaining the structure and quality of soil. The introduction of earthworms into soils contaminated with metals in the presence of a potential hyperaccumulator has been suggested as an aid for phytoremediation processes. The present study was conducted to evaluate: (i) the effects of earthworms on lead availability in artificially contaminated soil at 500 and 1000 mg kg(-1) Pb in the presence of Lantana camara, a hyperaccumulator, (ii) the effects of earthworms and lead on soil properties such as pH, cation exchange capacity (CEC), organic matter (OM), total and available N, P and K and (iii) soil enzyme activities. Earthworms increased the bioavailable Pb in root-adhering soil by a factor of 2 to 3 in the contaminated soils at concentrations of 500 to 1000 mg Pb kg(-1), respectively. In lead contaminated soils, the presence of earthworms led to a significant decrease in soil pH by about 0.2 but increased CEC by 17% and OM by more than 30%. Earthworm activities also increased the activities of N-acetylglucosamidase, β-glucosidase, cellulase, xylanase, alkaline and acid phosphatase, urease and fluorescein diacetate assay (FDA). These results indicate that the ecological context for phytoremediation should be broadened by considering plant-soil-earthworm interactions as they influence both plant health and absorption of heavy metals. They also showed that the enzyme activities monitored could serve as useful proxies for phytoremediation capability and, more generally, for soil quality as a whole.
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Affiliation(s)
- My Dung Jusselme
- UMR211-BIOEMCO, Equipe Interactions Biologiques dans les Sols, IBIOS, Centre d'IRD France Nord, 32 avenue Henri Varagnat, 93143 Bondy, France.
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Inoue H, Fukuoka D, Tatai Y, Kamachi H, Hayatsu M, Ono M, Suzuki S. Properties of lead deposits in cell walls of radish (Raphanus sativus) roots. JOURNAL OF PLANT RESEARCH 2013; 126:51-61. [PMID: 22644314 DOI: 10.1007/s10265-012-0494-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 04/22/2012] [Indexed: 05/20/2023]
Abstract
Various mechanisms are involved in detoxification of heavy metals such as lead (Pb) in plant cells. Most of the Pb taken up by plants accumulates in their roots. However, the detailed properties of Pb complexes in roots remain unclear. We have investigated the properties of Pb deposits in root cell walls of radish (Raphanus sativus L.) seedlings grown on glass beads bed containing Pb pellets, which are the source of Pb-contamination in shooting range soils. Pb deposits were tightly bound to cell walls. Cell wall fragments containing about 50,000 ppm Pb were prepared from the roots. After extracting Pb from the cell wall fragments using HCl, Pb ions were recombined with the Pb-extracted cell wall fragments in a solution containing Pb acetate. When the cell wall fragments were treated with pectinase (E.C. 3.2.1.15) and were chemically modified with 1-ethyl-3-dimethylamino-propylcarboimide, the Pb-rebinding ability of the treated cell wall fragments decreased. When acid-treated cell wall fragments were incubated in a solution containing Pb(2+) and excess amounts of a chelating agent, Pb recombined with the cell wall fragments were measured to estimate the affinity between Pb(2+) and the cell wall fragments. Our data show that Pb(2+) binds to carboxyl groups of cell walls. The source of the carboxyl groups is suggested to be pectic compounds. A stability constant of the Pb-cell wall complex was estimated to be about 10(8). The role of root cell walls in the mechanism underlying heavy metal tolerance was discussed.
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Affiliation(s)
- Hiroshi Inoue
- Department of Environmental Biology and Chemistry, Graduate School of Science and Technology, University of Toyama, Toyama 930-8555, Japan.
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29
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Fahr M, Laplaze L, Bendaou N, Hocher V, Mzibri ME, Bogusz D, Smouni A. Effect of lead on root growth. FRONTIERS IN PLANT SCIENCE 2013; 4:175. [PMID: 23750165 PMCID: PMC3674728 DOI: 10.3389/fpls.2013.00175] [Citation(s) in RCA: 104] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 05/16/2013] [Indexed: 05/18/2023]
Abstract
Lead (Pb) is one of the most widespread heavy metal contaminant in soils. It is highly toxic to living organisms. Pb has no biological function but can cause morphological, physiological, and biochemical dysfunctions in plants. Plants have developed a wide range of tolerance mechanisms that are activated in response to Pb exposure. Pb affects plants primarily through their root systems. Plant roots rapidly respond either (i) by the synthesis and deposition of callose, creating a barrier that stops Pb entering (ii) through the uptake of large amounts of Pb and its sequestration in the vacuole accompanied by changes in root growth and branching pattern or (iii) by its translocation to the aboveground parts of plant in the case of hyperaccumulators plants. Here we review the interactions of roots with the presence of Pb in the rhizosphere and the effect of Pb on the physiological and biochemical mechanisms of root development.
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Affiliation(s)
- Mouna Fahr
- Laboratoire de Physiologie et Biotechnologie Végétale, Faculté des Sciences, Université Mohammed V - AgdalRabat, Morocco
- Laboratoire de Biotechnologie des Plantes, Centre National de l’Energie, des Sciences et des Techniques Nucléaires, Unité de Biologie et Recherches Médicales- Division Sciences du VivantRabat, Morocco
- Equipe Rhizogenèse, Institut de Recherche pour le Développement, Unité Mixte de Recherche Diversité Adaptation et Developpement des Plantes,Université Montpellier 2Montpellier, France
| | - Laurent Laplaze
- Equipe Rhizogenèse, Institut de Recherche pour le Développement, Unité Mixte de Recherche Diversité Adaptation et Developpement des Plantes,Université Montpellier 2Montpellier, France
- Laboratoire mixte international Adaptation des Plantes et microorganismes associés aux Stress Environnementaux, Laboratoire Commun de Microbiologie Institut de Recherche pour le Développement/Institut Sénégalais de Recherches Agricoles/Université Cheikh Anta Diop, Centre de Recherche de Bel AirDakar, Senegal
| | - Najib Bendaou
- Laboratoire de Physiologie et Biotechnologie Végétale, Faculté des Sciences, Université Mohammed V - AgdalRabat, Morocco
| | - Valerie Hocher
- Equipe Rhizogenèse, Institut de Recherche pour le Développement, Unité Mixte de Recherche Diversité Adaptation et Developpement des Plantes,Université Montpellier 2Montpellier, France
| | - Mohamed El Mzibri
- Laboratoire de Biotechnologie des Plantes, Centre National de l’Energie, des Sciences et des Techniques Nucléaires, Unité de Biologie et Recherches Médicales- Division Sciences du VivantRabat, Morocco
| | - Didier Bogusz
- Equipe Rhizogenèse, Institut de Recherche pour le Développement, Unité Mixte de Recherche Diversité Adaptation et Developpement des Plantes,Université Montpellier 2Montpellier, France
| | - Abdelaziz Smouni
- Laboratoire de Physiologie et Biotechnologie Végétale, Faculté des Sciences, Université Mohammed V - AgdalRabat, Morocco
- *Correspondence: Abdelaziz Smouni, Laboratoire de Physiologie et Biotechnologie Végétale, Faculté des Sciences, Université Mohammed V - Agdal, 4 Avenue Ibn Battouta, BP 1014, 10001 Rabat, Morocco e-mail:
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Kumar A, Prasad MNV, Sytar O. Lead toxicity, defense strategies and associated indicative biomarkers in Talinum triangulare grown hydroponically. CHEMOSPHERE 2012; 89:1056-65. [PMID: 22722003 DOI: 10.1016/j.chemosphere.2012.05.070] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2012] [Revised: 04/16/2012] [Accepted: 05/16/2012] [Indexed: 05/07/2023]
Abstract
Talinum species have been used to investigate a variety of environmental problems for e.g. determination of metal pollution index and total petroleum hydrocarbons in roadside soils, stabilization and reclamation of heavy metals (HMs) in dump sites, removal of HMs from storm water-runoff and green roof leachates. Species of Talinum are popular leaf vegetables having nutrient antinutrient properties. In this study, Talinum triangulare (Jacq.) Willd (Ceylon spinach) grown hydroponically were exposed to different concentrations of lead (Pb) (0, 0.25, 0.5, 0.75, 1.0 and 1.25 mM) to investigate the biomarkers of toxicity and tolerance mechanisms. Relative water content, cell death, photosynthetic pigments, sulphoquinovosyldiacylglycerol (SQDG), anthocyanins, α-tocopherol, malondialdehyde (MDA), reactive oxygen species (ROS) glutathione (GSH and GSSG) and elemental analysis have been investigated. The results showed that Pb in roots and shoots gradually increased as the function of Pb exposure; however Pb concentration in leaves was below detectable level. Chlorophylls and SQDG contents increased at 0.25 mM of Pb treatment in comparison to control at all treated durations, thereafter decreased. Levels of carotenoid, anthocyanins, α-tocopherol, and lipid peroxidation increased in Pb treated plants compared to control. Water content, cells death and elemental analysis suggested the damage of transport system interfering with nutrient transport causing cell death. The present study also explained that Pb imposed indirect oxidative stress in leaves is characterized by decreases in GSH/GSSG ratio with increased doses of Pb treatment. Lead-induced oxidative stress was alleviated by carotenoids, anthocyanins, α-tocopherol and glutathione suggesting that these defense responses as potential biomarkers for detecting Pb toxicity.
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Affiliation(s)
- Abhay Kumar
- Department of Plant Sciences, University of Hyderabad, Hyderabad 500 046, India
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31
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Jusselme MD, Poly F, Miambi E, Mora P, Blouin M, Pando A, Rouland-Lefèvre C. Effect of earthworms on plant Lantana camara Pb-uptake and on bacterial communities in root-adhering soil. THE SCIENCE OF THE TOTAL ENVIRONMENT 2012; 416:200-7. [PMID: 22221873 DOI: 10.1016/j.scitotenv.2011.10.070] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Revised: 10/27/2011] [Accepted: 10/28/2011] [Indexed: 05/20/2023]
Abstract
The present study aimed to assess the potential abilities of Lantana camara, an invasive plant species for phytoremediation in the presence of earthworm Pontoscolex corethrurus. Effects of earthworm on growth and lead (Pb) uptake by L. camara plant were studied in soil artificially contaminated at 500 or 1000mg of Pb kg(-1) soil. This species has a promising value for phytoremediation because it can uptake as much as 10% of 1000mgkg(-1) of Pb per year. Moreover, the presence of earthworms enhanced plant biomass by about 1.5-2 times and increased the uptake of lead by about 2-3 times. In the presence of earthworm, L. camara was thus able to uptake up 20% of Pb presence in the soil, corresponding to remediation time of 5 years if all organs are removed. As soil microorganisms are known to mediate many interactions between earthworms and plants, we documented the effect of earthworms on the bacterial community of root-adhering soil of L. camara. Cultivable bacterial biomass of root-adhering soil increased in the presence of earthworms. Similar trend was observed on bacterial metabolic activities. The increase of lead concentrations from 500 to 1000mgkg(-1) did not have any significant effect either on plant growth or on bacterial biomass and global activities but affected the structure and functional diversity of the bacterial community. These results showed that we should broaden the ecological context of phytoremediation by considering plant/microbial community/earthworm interactions that influence the absorption of heavy metals.
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Affiliation(s)
- My Dung Jusselme
- UMR CNRS 6553 ECOBIO, Université de Rennes I, Campus de Beaulieu, 263 avenue du Général Leclerc, 35042 Rennes Cedex, France.
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Galiová M, Kaiser J, Novotný K, Hartl M, Kizek R, Babula P. Utilization of laser-assisted analytical methods for monitoring of lead and nutrition elements distribution in fresh and dried Capsicum annuum l. leaves. Microsc Res Tech 2011; 74:845-52. [PMID: 23939673 DOI: 10.1002/jemt.20967] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Accepted: 10/18/2010] [Indexed: 11/11/2022]
Abstract
Laser induced breakdown spectroscopy (LIBS) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) have been applied for high-resolution mapping of accumulation and distribution of heavy metal (lead) and nutrition elements (potassium, manganese) in leaves of Capsicum annuum L. samples. Lead was added in a form of Pb(NO₃)₂ at concentration up to 10 mmol L⁻¹ into the vessels that contained tap water and where the 2-months old Capsicum annuum L. plants were grown another seven days. Two dimensional maps of the elements are presented for both laser-assisted analytical methods. Elemental mapping performed on fresh (frozen) and dried Capsicum annuum L. leaves are compared.
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Affiliation(s)
- Michaela Galiová
- Department of Chemistry, Faculty of Science, Masaryk University, Kotlářská 2, 61137 Brno, Czech Republic
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Haque RM, Kuo YH, Lambein F, Hussain M. Effect of environmental factors on the biosynthesis of the neuro-excitatory amino acid β-ODAP (β-N-oxalyl-l-α,β-diaminopropionic acid) in callus tissue of Lathyrus sativus. Food Chem Toxicol 2011; 49:583-8. [DOI: 10.1016/j.fct.2010.06.050] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Revised: 05/31/2010] [Accepted: 06/09/2010] [Indexed: 11/15/2022]
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Zaier H, Ghnaya T, Lakhdar A, Baioui R, Ghabriche R, Mnasri M, Sghair S, Lutts S, Abdelly C. Comparative study of Pb-phytoextraction potential in Sesuvium portulacastrum and Brassica juncea: tolerance and accumulation. JOURNAL OF HAZARDOUS MATERIALS 2010; 183:609-15. [PMID: 20708335 DOI: 10.1016/j.jhazmat.2010.07.068] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2010] [Revised: 05/24/2010] [Accepted: 07/16/2010] [Indexed: 05/07/2023]
Abstract
Lead phytoextraction from salty soils is a difficult task because this process needs the use of plants which are able to tolerate salt and accumulate Pb(2+) within in their shoots. It has recently been suggested that salt-tolerant plants are more suitable for heavy metals extraction than salt-sensitive ones commonly used in this approach. The aim of this study was to investigate Pb-phytoextraction potential of the halophyte Sesuvium portulacastrum in comparison with Brassica juncea commonly used in Pb-phytoextraction. Seedlings of both species were exposed in nutrient solution to 0, 200, 400, 800 and 1000 μM Pb(2+) for 21 days. Lead strongly inhibited growth in B. juncea but had no impact on S. portulacastrum. Exogenous Pb(2+) reduced nutrients uptake mainly in B. juncea as compared to S. portulacastrum. Lead was preferentially accumulated in roots in both species. S. portulacastrum accumulated more Pb(2+) in the shoot than B. juncea. Hence, the amounts of Pb(2+) translocated at 1000 μM Pb(2+) were 3400 μg g(-1) DW and 2200 μg g(-1) DW in S. portulacastrum and B. juncea, respectively. These results suggest that S. portulacastrum is more efficient to extract Pb(2+) than B. juncea.
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Affiliation(s)
- Hanen Zaier
- Laboratoire d'Adaptation des Plantes aux Stress Abiotiques, Centre de Biotechnologie de Borj-Cédria, BP 901, 2050 Hammam-lif, Tunisia.
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Brunet J, Varrault G, Zuily-Fodil Y, Repellin A. Accumulation of lead in the roots of grass pea (Lathyrus sativus L.) plants triggers systemic variation in gene expression in the shoots. CHEMOSPHERE 2009; 77:1113-20. [PMID: 19726070 DOI: 10.1016/j.chemosphere.2009.07.058] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Revised: 07/24/2009] [Accepted: 07/27/2009] [Indexed: 05/05/2023]
Abstract
The impact of lead nitrate (Pb(NO(3))(2); 0.5mM) on steady-state accumulation of messengers corresponding to stress responsive genes was studied in two local lines of 11-d grass pea (Lathyrus sativus L.) plants exposed for 96 h in a hydroponic system. Real-time reverse transcription polymerase chain reaction technique was used with grass pea-specific primers designed from newly isolated partial cDNA. Increases in accumulation of glutathione reductase, ascorbate peroxidase and glutathione S-transferase transcripts suggested that roots enhanced detoxification mechanisms involving glutathione. In the leaves where no lead was translocated, the pollutant indirectly triggered increases in expression of several genes. This process probably resulted from systemic signals originating from the roots where lead accumulated in large amounts, approximately 150 mg Pbg(-1) dry weight. A preventive and/or adaptive role for the signal is assumed, since it concerned genes implicated in reactive oxygen species scavenging (ascorbate peroxidase), protein protection (heat shock protein 70) and proteolysis (cysteine and aspartic proteases).
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Affiliation(s)
- Judicaëlle Brunet
- Ecophysiologie Moléculaire (IBIOS, UMR Bioemco 7618), Université Paris Est-Créteil, 61 avenue du Général de Gaulle, 94010 Créteil Cedex, France
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