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Luo C, Zhang L, Ali MM, Xu Y, Liu Z. Environmental risk substances in soil on seed germination: Chemical species, inhibition performance, and mechanisms. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134518. [PMID: 38749244 DOI: 10.1016/j.jhazmat.2024.134518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/20/2024] [Accepted: 04/30/2024] [Indexed: 05/30/2024]
Abstract
Nowadays, numerous environmental risk substances in soil worldwide have exhibited serious germination inhibition of crop seeds, posing a threat to food supply and security. This review provides a comprehensive summary and discussion of the inhibitory effects of environmental risk substances on seed germination, encompassing heavy metals, microplastics, petroleum hydrocarbons, salinity, phenols, essential oil, agricultural waste, antibiotics, etc. The impacts of species, concentrations, and particle sizes of various environmental risk substances are critically investigated. Furthermore, three primary inhibition mechanisms of environmental risk substances are elucidated: hindering water absorption, inducing oxidative damage, and damaging seed cells/organelles/cell membranes. To address these negative impacts, diverse effective coping measures such as biochar/compost addition, biological remediation, seed priming, coating, and genetic modification are proposed. In brief, this study systematically analyzes the negative effects of environmental risk substances on seed germination, and provides a basis for the comprehensive understanding and future implementation of efficient treatments to address this significant challenge and ensure food security and human survival.
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Affiliation(s)
- Cheng Luo
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Linyan Zhang
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
| | - Mahmoud M Ali
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; Agricultural Engineering Research Institute, Agricultural Research Center, Giza 12311, Egypt
| | - Yongdong Xu
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; State Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing 100083, China.
| | - Zhidan Liu
- Laboratory of Environment-Enhancing Energy (E2E), Key Laboratory of Agricultural Engineering in Structure and Environment of Ministry of Agriculture and Rural Affairs, College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China; State Key Laboratory of Efficient Utilization of Agricultural Water Resources, Beijing 100083, China.
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2
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Zuo G, Huo J, Yang X, Mei W, Zhang R, Khan A, Feng N, Zheng D. Photosynthetic mechanisms underlying NaCl-induced salinity tolerance in rice (Oryza sativa). BMC PLANT BIOLOGY 2024; 24:41. [PMID: 38195408 PMCID: PMC10777521 DOI: 10.1186/s12870-024-04723-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/01/2024] [Indexed: 01/11/2024]
Abstract
BACKGROUND Salinity stress is an environmental constraint that normally develops concurrently under field conditions, resulting in drastic limitation of rice plant growth and grain productivity. The objective of this study was to explore the alleviating effects of NaCl pre-treatment on rice seedlings as well as the salt tolerance mechanisms by evaluating morph-physiological traits. RESULTS Variety Huanghuazhan, either soaked in distilled water or 25 mg/L Prohexadione calcium (Pro-Ca), were first hardened with varying concentrations of NaCl solutions (0 and 50 mM NaCl), and then subjected to varying degrees of salt stress (0 and 100 mM NaCl), indicated by S0, S1, S2 and S3, respectively. Growth analysis suggested that NaCl-pretreatment improved the root/shoot ratio in water-soaked rice plant at DAP 0. Data related to the reaction center density, photosynthetic electron transport efficiency, trapping efficiency were compared before (CK) using performance Index (PIabs). Compared to S2 (Pro-Ca-S2) treatment, PIabs did not show any difference with plants pre-treated with NaCl (S3 or Pro-Ca-S3). Rather than PIabs, significant difference was found in photosynthetic electron transport efficiency (ΨEo). The ΨEo value in Pro-S2 was significantly lowered as compared to Pro-S3 treatment at DAP 7, and the decrease rate was about 6.5%. Correlation analysis indicated leaf PIabs was weak correlated with plant biomass while the quantum yield for reduction of the PSI end electron acceptors, trapped energy flux per reaction center and PSII antenna size displayed strong positive correlation with biomass. Additional analysis revealed that 100 mM NaCl significantly reduced leaf linear electron flux under low-light conditions, regardless of whether seedlings had been pre-treated with 50 mM NaCl or not. CONCLUSIONS NaCl-induced salt tolerance was related to the robust photosynthetic machinery.
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Affiliation(s)
- Guanqiang Zuo
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524008, China
- College of Natural Resources and Environment, Northwest A&F University, Xianyang, 712100, China
| | - Jingxin Huo
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524008, China
| | - Xiaohui Yang
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524008, China
| | - Wanqi Mei
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524008, China
| | - Rui Zhang
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524008, China
| | - Aaqil Khan
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524008, China
| | - Naijie Feng
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524008, China
- National Saline-tolerant Rice Technology Innovation Center, South China, Zhanjiang, 524008, China
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518108, China
| | - Dianfeng Zheng
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524008, China.
- National Saline-tolerant Rice Technology Innovation Center, South China, Zhanjiang, 524008, China.
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518108, China.
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Ferreira ET, Barrochelo SC, de Melo SDP, Araujo T, Xavier ACC, Cechin I, da Silva GHR. Biofertilizers from wastewater treatment as a potential source of mineral nutrients for growth of amaranth plants. PLoS One 2023; 18:e0295624. [PMID: 38117795 PMCID: PMC10732379 DOI: 10.1371/journal.pone.0295624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 11/22/2023] [Indexed: 12/22/2023] Open
Abstract
Exploring alternative fertilizers is crucial in agriculture due to the cost and environmental impact of inorganic options. This study investigated the potential of sewage-derived biofertilizers on the growth and physiology of Amaranthus cruentus plants. Various treatments were compared, including control treatments with inorganic fertilizer and treatments with biofertilizers composed of microalgae, biosolids and reclaimed water. The following traits were investigated: photosynthetic pigments, gas exchange, growth, and leaf nutrient concentrations. The results showed that the concentrations of N, P, Cu, Fe Zn and Na nutrients, in the dry microalgae and biosolids, were quite high for the needs of the plants. The wet microalgae presented high concentration of Cu, Fe and Zn nutrients while reclaimed water contained high concentration of N, K, Ca and S. Na and Zn nutrients increased in the leaf of plants treated with dry microalgae and biosolid, respectively. At the beginning of the flowering phase, total chlorophyll and carotenoids contents were lower for plants grown with wet microalgae while for plants grown with higher doses of biosolid or reclaimed water total chlorophyll was increased, and carotenoids were not affected. Lower photosynthetic pigments under wet microalgae resulted in lower photosynthetic rates. On the other hand, amendments with dry microalgae and biosolid increased photosynthetic rates with the biosolid being the most effective. Higher applications of biosolid, wet and dry microalgae produced a considerable increase in shoot biomass of amaranth, with the dry microalgae being the most effective. Additionally, reclaimed water obtained after tertiary treatment of sewage with microalgae and biosolids applied alone showed promising effects on plant growth. Overall, these findings suggest that organic fertilizers derived from sewage treatment have the potential to enhance plant growth and contribute to sustainable agricultural practices.
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Affiliation(s)
- Elisa Teófilo Ferreira
- Department of Biological Sciences, Faculty of Sciences, UNESP – São Paulo State University, Bauru, Brazil
| | - Sarah Corrêa Barrochelo
- Department of Biological Sciences, Faculty of Sciences, UNESP – São Paulo State University, Bauru, Brazil
| | - Sarah de Paula de Melo
- Department of Biological Sciences, Faculty of Sciences, UNESP – São Paulo State University, Bauru, Brazil
| | - Thainá Araujo
- Department of Biological Sciences, Faculty of Sciences, UNESP – São Paulo State University, Bauru, Brazil
| | | | - Inês Cechin
- Department of Biological Sciences, Faculty of Sciences, UNESP – São Paulo State University, Bauru, Brazil
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Nsiah-Gyambibi R, Amponsah TY, Kofi AB. Influence of vermifiltered wastewater on the morphological, physiological and biochemical developments of Zea mays, Triticum aestivum and Sorghum bicolor seed germination. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:3510-3520. [PMID: 36725673 DOI: 10.1002/jsfa.12482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 01/05/2023] [Accepted: 02/02/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Reclaimed wastewater is a potential source for irrigation, although its effect on seed germination and plant growth has not been widely investigated. The present study focused on treating wastewater by vermifiltration and investigating the effect on seed germination and seedling development of Zea mays, Triticum aestivum and Sorghum bicolor and their morphological, physiological and biochemical developments. A filter bed was constructed using indigenous and improved materials. The constituents used to develop the filter bed consist of matrix of garden soil, lateritic hardpan gravels and coconut coir inoculated with Eisenia fetida. RESULTS The wastewater was obtained from a public septic tank toilet facility and contained 35-40% dry matter with high concentrations of total dissolve solids (TDS), total suspended solids (TSS), chemical oxygen demand (COD), biochemical oxygen demand (BOD), total nitrogen (Ntot ) and phosphorus (Pavail ). Portable water was used as the control. Vermifiltration of the wastewater was shown to be effective for the removal of 52-65% TDS, 56-62% TSS, 34-40% COD, 48-52% BOD, 56-62% Ntot and 53-58% Pavail . The results showed that the morphological, physiological and biochemical processes in Z. mays, T. aestivum and S. bicolor improved when seeds were subjected to treated wastewater. CONCLUSION The present study demonstrated that a potential reuse of vermifiltered wastewater as a source of irrigation water with continuous monitoring of the water quality is productive and sustainable. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Rapheal Nsiah-Gyambibi
- Council for Scientific and Industrial Research, Institute of Industrial Research, Accra, Ghana
| | - Theophilus Yaw Amponsah
- Council for Scientific and Industrial Research, Institute of Industrial Research, Accra, Ghana
| | - Ampomah-Benefo Kofi
- Council for Scientific and Industrial Research, Institute of Industrial Research, Accra, Ghana
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Zaheer M, Zafar ZU, Athar HUR, Bano H, Amir M, Khalid A, Manzoor H, Javed M, Iqbal M, Ogbaga CC, Qureshi MK. Mixing tannery effluent had fertilizing effect on growth, nutrient accumulation, and photosynthetic capacity of some cucurbitaceous vegetables: A little help from foe. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:28947-28960. [PMID: 36401694 DOI: 10.1007/s11356-022-24247-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Tannery effluent contains a number of organic and inorganic elements as pollutants which reduce plant growth. To overcome shortage of water, use of diluted industrial wastewater such as tannery effluent can be a viable strategy for improving crop growth and yield. A pot experiment was conducted to determine the effects of tannery effluent and its various dilutions on physiological and biochemical characteristics of five cucurbitaceous vegetables. Tannery effluent was applied 0, 25, 50, 75 and 100% to 3-week-old plants of five cucurbitaceous vegetables (Cucurbita maxima, Luffa cylindrica, Citrullus vulgaris, Cucumis melo, and Praecitrullus fistulosus) for 4 weeks. Tannery effluent reduced the growth of all five cucrbitaceous vegetables. Diluted tannery effluent (25%) improved the growth of Cucurbita maxima, Citrullus vulgaris, and Cucumis melo. Moderately diluted (50%) did not affect the growth of Citrullus vulgaris and Cucumis melo. Toxic effects of tannery effluent were associated with high accumulation of heavy metals Cr, Cd, Mn, and Fe in leaves and roots. High accumulation of heavy metals in leaves reduced the accumulation of nutrients in leaves (N, P, K) and reduced photosynthetic pigments and photosynthetic rate. Changes in photosynthetic rates of all vegetable species due to tannery effluent were not associated with stomatal limitations (stomatal conductance, transpiration rate, internal CO2). Toxic effects of tannery effluent on plants also include changes in N-metabolism (amino acid and protein). However, extent of these adverse effects of tannery effluent on vegetables was species specific. It is suggested that Cucurbita maxima can be grown by supplying 25% tannery effluent, whereas Citrullus vulgaris and Cucumis melo can be grown with moderately diluted (50%) tannery effluent.
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Affiliation(s)
- Muhammad Zaheer
- Institute of Botany, Bahauddin Zakariya University, Multan, Pakistan
| | - Zafar Ullah Zafar
- Institute of Botany, Bahauddin Zakariya University, Multan, Pakistan.
| | | | - Hussan Bano
- Institute of Botany, Bahauddin Zakariya University, Multan, Pakistan
- Department of Botany, The Women University, Multan, Pakistan
| | - Misbah Amir
- Institute of Botany, Bahauddin Zakariya University, Multan, Pakistan
| | - Ayesha Khalid
- Institute of Botany, Bahauddin Zakariya University, Multan, Pakistan
| | - Hamid Manzoor
- Institute of Molecular Biology and Biotechnology, Bahauddin Zakariya University, Multan, Pakistan
| | - Muhammad Javed
- Institute of Botany, Bahauddin Zakariya University, Multan, Pakistan
- Department of Botany, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Muhammad Iqbal
- Institute of Botany, Bahauddin Zakariya University, Multan, Pakistan
- Department of Botany, University of Okara, Okara, Pakistan
| | - Chukwuma C Ogbaga
- Department of Biological Sciences, Nile University of Nigeria, Airport Road, Abuja, Nigeria
| | - Muhammad Kamran Qureshi
- Department of Plant Breeding and Genetics, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan
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Moula A, Borgi MA, Ellafi A, Chaieb M, Mekki A. Biosorption of heavy metals from phosphate-processing effluent by Serratia rubidaea NCTC12971 immobilized in Ca-alginate beads. INTERNATIONAL MICROBIOLOGY : THE OFFICIAL JOURNAL OF THE SPANISH SOCIETY FOR MICROBIOLOGY 2023; 26:149-160. [PMID: 36260156 DOI: 10.1007/s10123-022-00284-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 09/29/2022] [Accepted: 10/09/2022] [Indexed: 01/06/2023]
Abstract
In this study, the biosorption ability of various potentially toxic elements from phosphate-processing effluent (PPE) using the indigenous bacterium Serratia rubidaea NCTC12971 immobilized in Ca-alginate beads was investigated. The experimental data analyzed by the Langmuir isotherm revealed that the optimum dose of 2 g·100 ml-1 of immobilized S. rubidaea NCTC12971 at pH 7 and a contact time of 48 h allowed the removal of 92.07%, 98.05%, 95.57%, and 88.39% of lead (Pb (II)), cadmium (Cd (II)), copper (Cu (II)), and zinc (Zn (II)), respectively. Moreover, under the Langmuir isotherm, the maximum single-layer adsorption capacity (qmax) of the biosorbent was estimated to 32.14 mg g-1, 45.87 mg g-1, 0.06 mg g-1, and 3.01 mg g-1 for Pb (II), Cd (II), Cu (II), and Zn (II), respectively, under the stated conditions. Alternatively, the regeneration and reuse of the Ca-alginate beads was evaluated. Indeed, after four consecutive adsorption-desorption cycles, there was no significant loss in the biosorption capacity. The effectiveness of the bacterial biosorption as treatment process was evaluated by assessing the phytotoxicity of the treated effluent (TE) on Medicago sativa and Lactuca sativa seed germination and their root elongation. Results exhibited a significant toxicity removal expressed by a notable increase in the germination indices (GI), which reach 80% and 70%, respectively, for Medicago sativa and Lactuca sativa compared to the GI values of 46.6% and 16.6% of the same species in presence of the untreated effluent (PPE).
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Affiliation(s)
- Amel Moula
- Faculty of Sciences of Sfax, Laboratory of Plant Biodiversity and Dynamics of Ecosystems in Arid Environment, Sfax University, Sfax, Tunisia.,Faculty of Sciences of Gafsa, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems (LBBEEO), Gafsa University, Gafsa, Tunisia
| | - Mohamed Ali Borgi
- Faculty of Sciences of Gafsa, Laboratory of Biotechnology and Biomonitoring of the Environment and Oasis Ecosystems (LBBEEO), Gafsa University, Gafsa, Tunisia
| | - Ali Ellafi
- Faculty of Pharmacy, Laboratory of Analysis, Treatment and Valorization of Environment Pollutants and Products, Monastir University, Monastir, Tunisia
| | - Mohamed Chaieb
- Faculty of Sciences of Sfax, Laboratory of Plant Biodiversity and Dynamics of Ecosystems in Arid Environment, Sfax University, Sfax, Tunisia
| | - Ali Mekki
- Faculty of Sciences of Sfax, Laboratory of Plant Biodiversity and Dynamics of Ecosystems in Arid Environment, Sfax University, Sfax, Tunisia. .,Laboratory of Environmental Bioprocesses, Center of Biotechnology of Sfax, AUF (PER-LBPE), Sfax, Tunisia.
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Rodríguez C, Garcia-Caurel E, Garnatje T, Serra I Ribas M, Luque J, Campos J, Lizana A. Polarimetric observables for the enhanced visualization of plant diseases. Sci Rep 2022; 12:14743. [PMID: 36042370 PMCID: PMC9428171 DOI: 10.1038/s41598-022-19088-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 08/24/2022] [Indexed: 11/09/2022] Open
Abstract
This paper highlights the potential of using polarimetric methods for the inspection of plant diseased tissues. We show how depolarizing observables are a suitable tool for the accurate discrimination between healthy and diseased tissues due to the pathogen infection of plant samples. The analysis is conducted on a set of different plant specimens showing various disease symptoms and infection stages. By means of a complete image Mueller polarimeter, we measure the experimental Mueller matrices of the samples, from which we calculate a set of metrics analyzing the depolarization content of the inspected leaves. From calculated metrics, we demonstrate, in a qualitative and quantitative way, how depolarizing information of vegetal tissues leads to the enhancement of image contrast between healthy and diseased tissues, as well as to the revelation of wounded regions which cannot be detected by means of regular visual inspections. Moreover, we also propose a pseudo-colored image method, based on the depolarizing metrics, capable to further enhance the visual image contrast between healthy and diseased regions in plants. The ability of proposed methods to characterize plant diseases (even at early stages of infection) may be of interest for preventing yield losses due to different plant pathogens.
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Affiliation(s)
- Carla Rodríguez
- Optics Group, Physics Department, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
| | - Enrique Garcia-Caurel
- LPICM, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91120, Palaiseau, France
| | - Teresa Garnatje
- Botanical Institute of Barcelona (IBB, CSIC-Ajuntament de Barcelona), 08038, Barcelona, Spain
| | - Mireia Serra I Ribas
- Optics Group, Physics Department, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Jordi Luque
- Institute of Agrifood Research and Technology (IRTA), 08348, Cabrils, Spain
| | - Juan Campos
- Optics Group, Physics Department, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Angel Lizana
- Optics Group, Physics Department, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
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Abstract
Halotolerant plant-growth-promoting rhizobacteria (PGPR) could not only promote plant growth, but also help in counteracting the detrimental effects of salt stress. In the present study, a total of 76 bacteria were isolated from the rhizosphere, non-rhizospheric soil and endophytes of the halophyte Salsola tetrandra, collected from natural saline soils in Algeria. Phylogenetic analysis based on the 16S rDNA sequence of Gram-negative bacteria (n = 51) identified, showed seventeen representative isolates grouped into four genera (Pseudomonas, Acinetobacter, Enterobacter, and Providencia). These bacterial isolates that exhibited different PGPR traits were selected and tested for their ability to tolerate different abiotic stress (NaCl, PEG8000, and pH). The majority of isolates were drought tolerant (60% of PEG8000) and had an optimal growth at high pH values (pH 9 and 11) and some strains tolerated 2 M of NaCl. Strains identified as Enterobacter xiangfangensis BE1, Providencia rettgeri BR5 and Pseudomonas stutzeri MLR6 showed high capacity of adaptation on their PGP traits. The salt-tolerant isolates were finally chosen to promote growth and enhance salt tolerance, separately or combined, of Arabidopsis thaliana (Col-0) exposed or not to 0.1 M NaCl, by following fresh and root weight, primary root elongation and lateral root number. The best bacterial effect was recorded for the MLR6 strain in increasing shoot fresh weight and for BE1 in terms of root fresh weight in the absence of salt stress. At stressed conditions, all growth parameters declined. However, inoculation of Arabidopsis thaliana with the three bacterial strains (MLR6, BE1 and BR5), single or in co-culture, conferred an increase in the shoot weight, primary root length and lateral root number. The use of these strains separately or combined as biofertilizers seems to be a powerful tool in the development of sustainable agriculture in saline soils.
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Chen L, Beiyuan J, Hu W, Zhang Z, Duan C, Cui Q, Zhu X, He H, Huang X, Fang L. Phytoremediation of potentially toxic elements (PTEs) contaminated soils using alfalfa (Medicago sativa L.): A comprehensive review. CHEMOSPHERE 2022; 293:133577. [PMID: 35016965 DOI: 10.1016/j.chemosphere.2022.133577] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 01/02/2022] [Accepted: 01/07/2022] [Indexed: 06/14/2023]
Abstract
Soil contamination with potentially toxic elements (PTEs) is an increasing environmental problem, posing serious threats to the living organisms. Phytoremediation is a sustainable and highly accepted technology for remediation of PTE-contaminated soils. Alfalfa has been widely adopted for the phytoremediation of PTE-contaminated soils due to its large biomass productivity, high PTE tolerance, and strong capacity to take up PTEs. However, there are still no literature reviews systematically summarized the potential of alfalfa in the phytoremediation. Therefore, we review the available literatures that present its PTE uptake, phytotoxicity, tolerance mechanisms, and aided techniques improving the phytoremediation efficiency. In this review, alfalfa shows high amounts of PTEs accumulation, especially in their root tissue. Meanwhile, the inner mechanisms of PTE tolerance and accumulation in alfalfa are discussed including: (i) the activation of antioxidant enzyme system, (ii) subcellular localization, (iii) production of glutathione, phytochelatins, and proline, and (iv) regulation of gene expression. Indeed, excessive PTE can overcome the defense system, which causes oxidative damage in alfalfa plants, thereby inhibiting growth and physiological processes and weakening the ability of PTE uptake. Till now, several approaches have been developed to improve the tolerance and/or accumulation of PTE in alfalfa plants as follows: (i) selection of PTE tolerant cultivars, (ii) applying plant growth regulators, (iii) addition of chelating agents, fertilizer, and biochar materials, and (iv) inoculation of soil microbes. Finally, we indicate that the selection of PTE-tolerant cultivars along with inoculation of soil microbes may be an efficient and eco-friendly strategy of the soil PTE phytoremediation.
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Affiliation(s)
- Li Chen
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China; College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation CAS and MWR, Yangling, 712100, China
| | - Jingzi Beiyuan
- School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong, China
| | - Weifang Hu
- Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences, Guangzhou, 510000, China
| | - Zhiqing Zhang
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation CAS and MWR, Yangling, 712100, China
| | - Chenjiao Duan
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation CAS and MWR, Yangling, 712100, China
| | - Qingliang Cui
- State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation CAS and MWR, Yangling, 712100, China
| | - Xiaozhen Zhu
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Haoran He
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China
| | - Xuguang Huang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China
| | - Linchuan Fang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Zhangzhou, 363000, China; College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation CAS and MWR, Yangling, 712100, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an, 710061, China.
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Chen Z, Cao XL, Niu JP. Effects of exogenous ascorbic acid on seed germination and seedling salt-tolerance of alfalfa. PLoS One 2021; 16:e0250926. [PMID: 33914821 PMCID: PMC8084155 DOI: 10.1371/journal.pone.0250926] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 04/17/2021] [Indexed: 01/24/2023] Open
Abstract
Alfalfa (Medicago sativa L.) is an important legume crop for forage, agriculture, and environment in the world. Ascorbic acid (AsA) plays positive roles in plants. However, its effects on germination and salt-tolerance of alfalfa are unknown. The effects of AsA applications on seed germination and seedling salt-tolerance of alfalfa were investigated. The results revealed that 0.1 and 1 mmol L-1 of exogenous AsA increased germination, amylase, and protease, as well as seedling length, fresh weight (FW), dry weight (DW), and endogenous AsA both in the shoots and roots, except that 1 mmol L-1 AsA reduced the activities of α-amylase, β-amylase and protease on day 3. However, 10 and 100 mmol L-1 AsA inhibited these parameters and even caused serious rot. It indicates that 0.1 mmol L-1 AsA has the optimal effects, whereas 100 mmol L-1 AsA has the worst impacts. Another part of the results showed that 0.1 mmol L-1 AsA not only enhanced stem elongation, FW and DW, but also increased chlorophyll and carotenoids both under non-stress and 150 mmol L-1 NaCl stress. Furthermore, 0.1 mmol L-1 AsA mitigated the damages of membrane permeability, malondialdehyde, and excessive reactive oxygen species (ROS) and ions both in the shoots and roots under 150 mmol L-1 NaCl stress. Hence, 0.1 mmol L-1 AsA improves growth and induces salt-tolerance by inhibiting excessive ROS, down-regulating the ion toxicity and up-regulating the antioxidant system. The principal component analysis included two main components both in the shoots and roots, and it explained the results well. In summary, the optimum concentration of 0.1 mmol L-1 AsA can be implemented to improve the seed germination and seedling growth of alfalfa under salt stress.
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Affiliation(s)
- Zhao Chen
- College of Grassland Agriculture, Northwest A&F University, Yangling China
| | - Xin-long Cao
- College of Grassland Agriculture, Northwest A&F University, Yangling China
| | - Jun-peng Niu
- College of Grassland Agriculture, Northwest A&F University, Yangling China
- * E-mail:
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11
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Tailoring Next Generation Plant Growth Promoting Microorganisms as Versatile Tools beyond Soil Desalinization: A Road Map towards Field Application. SUSTAINABILITY 2021. [DOI: 10.3390/su13084422] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Plant growth promoting bacteria (PGPB) have been the target of intensive research studies toward their efficient use in the field as biofertilizers, biocontrol, and bioremediation agents among numerous other applications. Recent trends in the field of PGPB research led to the development of versatile multifaceted PGPB that can be used in different field conditions such as biocontrol of plant pathogens in metal contaminated soils. Unfortunately, all these research efforts lead to the development of PGPB that failed to perform in salty environments. Therefore, it is urgently needed to address this drawback of these PGPB toward their efficient performance in salinity context. In this paper we provide a review of state-of-the-art research in the field of PGPB and propose a road map for the development of next generation versatile and multifaceted PGPB that can perform in salinity. Beyond soil desalinization, our study paves the way towards the development of PGPB able to provide services in diverse salty environments such as heavy metal contaminated, or pathogen threatened. Smart development of salinity adapted next generation biofertilizers will inevitably allow for mitigation and alleviation of biotic and abiotic threats to plant productivity in salty environments.
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12
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Saidi S, Cherif-Silini H, Chenari Bouket A, Silini A, Eshelli M, Luptakova L, Alenezi FN, Belbahri L. Improvement of Medicago sativa Crops Productivity by the Co-inoculation of Sinorhizobium meliloti-Actinobacteria Under Salt Stress. Curr Microbiol 2021; 78:1344-1357. [PMID: 33646380 PMCID: PMC7997840 DOI: 10.1007/s00284-021-02394-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 02/07/2021] [Indexed: 01/22/2023]
Abstract
Biotic and abiotic stresses are severely limiting plant production and productivity. Of notable importance is salt stress that not only limits plant growth and survival, but affects the soil fertility and threatens agricultural ecosystems sustainability. The problem is exacerbated in fragile arid and semi-arid areas where high evaporation, low precipitation and the use of salty water for irrigation is accelerating soil salinization. Legumes, considered very nutritious foods for people and providing essential nutrients for ecosystems are a fundamental element of sustainable agriculture. They can restore soil health by their ability to fix nitrogen in a symbiotic interaction with the rhizobia of the soil. However, salt stress is severely limiting productivity and nitrogen fixation ability in legumes. Plant growth-promoting rhizobacteria (PGPR) and mainly actinobacteria promote plant growth by producing phytohormones, siderophores, antibiotics and antifungal compounds, solubilizing phosphate and providing antagonism to phytopathogenic microorganisms. In addition, actinobacteria have beneficial effects on nodulation and growth of legumes. In this study, actinobacteria isolated from different niches and having PGP activities were used in co-inoculation experiments with rhizobia in Medicago sativa plants rhizosphere submitted to salt stress. The results indicate that drought- and salinity-tolerant Actinobacteria with multiple PGP traits can potentially increase alfalfa growth under saline conditions, in the presence or absence of symbiotic rhizobial bacteria. Actinobacteria discovered in this study can, therefore, be suitable biofertilizers in the formulation of agricultural products improving plant development, health and productivity in saline soils, a necessary alternative for modern agriculture and sustainable development.
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Affiliation(s)
- Samira Saidi
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, University Ferhat Abbas Setif, Sétif, Algeria
| | - Hafsa Cherif-Silini
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, University Ferhat Abbas Setif, Sétif, Algeria
| | - Ali Chenari Bouket
- Plant Protection Research Department, East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz, Iran
| | - Allaoua Silini
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, University Ferhat Abbas Setif, Sétif, Algeria
| | - Manal Eshelli
- Food Science and Technology Department, Faculty of Agriculture, University of Tripoli, Tripoli, Libya
| | - Lenka Luptakova
- Department of Biology and Genetics, Institute of Biology, Zoology and Radiobiology, University of Veterinary Medicine and Pharmacy, Kosice, Slovakia
| | - Faizah N Alenezi
- Department of Environmental Technology Management, College of Life Sciences, Kuwait University, Safat, Kuwait
| | - Lassaad Belbahri
- NextBiotech, 98 Rue Ali Belhouane, Agareb, Tunisia.
- Laboratory of Soil Biology, University of Neuchatel, Neuchâtel, Switzerland.
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13
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Mitigation of NaCl Stress in Wheat by Rhizosphere Engineering Using Salt Habitat Adapted PGPR Halotolerant Bacteria. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11031034] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is a great interest in mitigating soil salinity that limits plant growth and productivity. In this study, eighty-nine strains were isolated from the rhizosphere and endosphere of two halophyte species (Suaeda mollis and Salsola tetrandra) collected from three chotts in Algeria. They were screened for diverse plant growth-promoting traits, antifungal activity and tolerance to different physico-chemical conditions (pH, PEG, and NaCl) to evaluate their efficiency in mitigating salt stress and enhancing the growth of Arabidopsis thaliana and durum wheat under NaCl–stress conditions. Three bacterial strains BR5, OR15, and RB13 were finally selected and identified as Bacillus atropheus. The Bacterial strains (separately and combined) were then used for inoculating Arabidopsis thaliana and durum wheat during the seed germination stage under NaCl stress conditions. Results indicated that inoculation of both plant spp. with the bacterial strains separately or combined considerably improved the growth parameters. Three soils with different salinity levels (S1 = 0.48, S2 = 3.81, and S3 = 2.80 mS/cm) were used to investigate the effects of selected strains (BR5, OR15, and RB13; separately and combined) on several growth parameters of wheat plants. The inoculation (notably the multi-strain consortium) proved a better approach to increase the chlorophyll and carotenoid contents as compared to control plants. However, proline content, lipid peroxidation, and activities of antioxidant enzymes decreased after inoculation with the plant growth-promoting rhizobacteria (PGPR) that can attenuate the adverse effects of salt stress by reducing the reactive oxygen species (ROS) production. These results indicated that under saline soil conditions, halotolerant PGPR strains are promising candidates as biofertilizers under salt stress conditions.
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14
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Mishra D, Kumar S, Mishra BN. An Overview of Morpho-Physiological, Biochemical, and Molecular Responses of Sorghum Towards Heavy Metal Stress. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 256:155-177. [PMID: 33866418 DOI: 10.1007/398_2020_61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Heavy metal (HM) contamination is a serious global environmental crisis. Over the past decade, industrial effluents, modern agricultural practices, and other anthropogenic activities have significantly depleted the soil environment. In plants, metal toxicity leads to compromised growth, development, productivity, and yield. Also, HMs negatively affect human health due to food chain contamination. Thus, it is imperative to reduce metal accumulation and toxicity. In nature, certain plant species exhibit an inherent capacity of amassing large amounts of HMs with remarkable tolerance. These plants with unique characteristics can be employed for the remediation of contaminated soil and water. Among different plant species, Sorghum bicolor has the potential of accumulating huge amounts of HMs, thus could be regarded as a hyperaccumulator. This means that it is a metal tolerant, high biomass producing energy crop, and thus can be utilized for phytoremediation. However, high concentrations of HMs hamper plant height, root hair density, shoot biomass, number of leaves, chlorophyll, carotenoid, and carbohydrate content. Thus, understanding the response of Sorghum towards different HMs holds considerable importance. Considering this, we have uncovered the basic information about the metal uptake, translocation, and accumulation in Sorghum. Plants respond to different HMs via sensing, signaling, and modulations in physico-chemical processes. Therefore, in this review, a glimpse of HM toxicity and the response of Sorghum at the morphological, physiological, biochemical, and molecular levels has been provided. The review highlights the future research needs and emphasizes the extensive molecular dissection of Sorghum to explore its genetic adaptability towards different abiotic stresses that can be exploited to develop resilient crop varieties.
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Affiliation(s)
- Dewanshi Mishra
- Department of Biotechnology, Institute of Engineering and Technology, Dr. A.P.J. Abdul Kalam Technical University, Lucknow, Uttar Pradesh, India
| | - Smita Kumar
- Department of Biochemistry, King George's Medical University, Lucknow, Uttar Pradesh, India.
| | - Bhartendu Nath Mishra
- Department of Biotechnology, Institute of Engineering and Technology, Dr. A.P.J. Abdul Kalam Technical University, Lucknow, Uttar Pradesh, India
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15
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Dardouri S, Jedidi A, Mejri S, Hattab S, Sghaier J. Morphological effect of dichloromethane on alfalfa ( Medicago sativa) cultivated in soil amended with fertilizer manures. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 23:263-271. [PMID: 32851853 DOI: 10.1080/15226514.2020.1810205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In this work, we investigated the morphological effect of dichloromethane (DCM) on alfalfa (Medicago sativa) plant. We studied in vitro the influence of its concentration on alfalfa germination. The plants were placed in pots for 15 weeks, and exposed to increasing concentrations of DCM (50 µg L-1 and 84 mg L-1). In addition, we examined the effect of two manures (cow and sheep), which were applied to a contaminated soil, on alfalfa plant growth. The effect of the presence of dichloromethane is obvious even in plant-soil manure system. In fact, in the event of contamination, the soil-cow manure mixture represents the best setting medium for the Alfalfa plant compared to other environments, regardless of the contamination level. Indeed, the presence of two types of manure does not allow the suppression of the inhibitory effect of dichloromethane on the mass of the dry matter of the aerial part which is 18.38% for the cow manure-amended soil and 13.96% for the sheep manure-amended soil.
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Affiliation(s)
- Sana Dardouri
- Laboratory of Thermal and Thermodynamics in Industrial Processes, National Engineering School of Monastir, Monastir, Tunisia
| | - Asma Jedidi
- Laboratory of Thermal and Thermodynamics in Industrial Processes, National Engineering School of Monastir, Monastir, Tunisia
| | - Sabrine Mejri
- Integrated Devices and Systems, Faculty of Electrical Engineering, Mathematical and Computer Science, University of Twente, the Netherlands
| | - Sabrine Hattab
- Regional Research Centre on Horticulture and Organic Agriculture, Chott-Mariem, Sousse, Tunisia
| | - Jalila Sghaier
- Laboratory of Thermal and Thermodynamics in Industrial Processes, National Engineering School of Monastir, Monastir, Tunisia
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16
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Luo Y, Liang J, Zeng G, Zhang Y, Cheng X, Jiang L, Xing W, Tang N. Revealing the active period and type of tetracycline stress on Chinese cabbage (Brassica rapa L.) during seed germination and post-germination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:11443-11449. [PMID: 32086732 DOI: 10.1007/s11356-020-08119-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/14/2020] [Indexed: 06/10/2023]
Abstract
Stresses of antibiotics can cause strains (i.e. effects) on seed at germination and post-germination stages. But there is a lack of research on the period and type of the effects at present. In this study, Chinese cabbage (Brassica rapa L.), a commonly used crop, was selected to investigate the effect of tetracycline (TC), a major-use antibiotic, on its seed during different periods of the stages. Results showed that there were no significant differences among the germination energy (GE) of control (CK) and treatments, but radicle length (RL) of the treatments, the exposure to TC at post-germination stage (i.e. radicle elongation stage), was all significantly less than that of CK. The initial stage of radicle elongation was the earliest and most sensitive period at which the stress of TC caused the plastic effect on seed. Moreover, the action of TC stress on seed did not have a delayed characteristic. The result of RL was identical to the leakage of intracellular substances at radicle fast elongation stage, but not the Evan's blue trapped by radicle. We concluded that TC inhibited the elongation of radicle through weakening the cellular metabolic activity rather than leading to the loss of cellular membrane integrity. It should be paid more attention to the phytotoxicity of TC in the field due to its active characteristics revealed in our study.
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Affiliation(s)
- Yuan Luo
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Jie Liang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China.
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China.
| | - Yafei Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Xiaojuan Cheng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Longbo Jiang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Wenle Xing
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Ning Tang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China
- Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
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17
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Ben Mefteh F, Bouket AC, Daoud A, Luptakova L, Alenezi FN, Gharsallah N, Belbahri L. Metagenomic Insights and Genomic Analysis of Phosphogypsum and Its Associated Plant Endophytic Microbiomes Reveals Valuable Actors for Waste Bioremediation. Microorganisms 2019; 7:microorganisms7100382. [PMID: 31547633 PMCID: PMC6843645 DOI: 10.3390/microorganisms7100382] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/08/2019] [Accepted: 09/19/2019] [Indexed: 12/04/2022] Open
Abstract
The phosphogypsum (PG) endogenous bacterial community and endophytic bacterial communities of four plants growing in phosphogypsum-contaminated sites, Suaeda fruticosa (SF), Suaeda mollis (SM), Mesembryanthmum nodiflorum (MN) and Arthrocnemum indicum (AI) were investigated by amplicon sequencing. Results highlight a more diverse community of phosphogypsum than plants associated endophytic communities. Additionally, the bacterial culturable communities of phosphogypsum and associated plant endophytes were isolated and their plant-growth promotion capabilities, bioremediation potential and stress tolerance studied. Most of plant endophytes were endowed with plant growth-promoting (PGP) activities and phosphogypsum communities and associated plants endophytes proved highly resistant to salt, metal and antibiotic stress. They also proved very active in bioremediation of phosphogypsum and other organic and inorganic environmental pollutants. Genome sequencing of five members of the phosphogypsum endogenous community showed that they belong to the recently described species Bacillus albus (BA). Genome mining of BA allowed the description of pollutant degradation and stress tolerance mechanisms. Prevalence of this tool box in the core, accessory and unique genome allowed to conclude that accessory and unique genomes are critical for the dynamics of strain acquisition of bioremediation abilities. Additionally, secondary metabolites (SM) active in bioremediation such as petrobactin have been characterized. Taken together, our results reveal hidden untapped valuable bacterial actors for waste remediation.
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Affiliation(s)
- Fedia Ben Mefteh
- NextBiotech, 98 Rue Ali Belhouane, Agareb 3030, Tunisia.
- Faculty of Sciences, University of Sfax, Sfax 3029, Tunisia.
| | - Ali Chenari Bouket
- Plant Protection Research Department, East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz 5355179854, Iran.
| | - Amal Daoud
- NextBiotech, 98 Rue Ali Belhouane, Agareb 3030, Tunisia.
| | - Lenka Luptakova
- NextBiotech, 98 Rue Ali Belhouane, Agareb 3030, Tunisia.
- Department of Biology and Genetics, Institute of Biology, Zoology and Radiobiology, University of Veterinary Medicine and Pharmacy in Košice, 04181 Kosice, Slovakia.
| | | | - Neji Gharsallah
- Faculty of Sciences, University of Sfax, Sfax 3029, Tunisia.
| | - Lassaad Belbahri
- NextBiotech, 98 Rue Ali Belhouane, Agareb 3030, Tunisia.
- Laboratory of Soil Biodiversity, University of Neuchâtel, CH-2000 Neuchatel, Switzerland.
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18
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Cherif-Silini H, Thissera B, Bouket AC, Saadaoui N, Silini A, Eshelli M, Alenezi FN, Vallat A, Luptakova L, Yahiaoui B, Cherrad S, Vacher S, Rateb ME, Belbahri L. Durum Wheat Stress Tolerance Induced by Endophyte Pantoea agglomerans with Genes Contributing to Plant Functions and Secondary Metabolite Arsenal. Int J Mol Sci 2019; 20:ijms20163989. [PMID: 31426312 PMCID: PMC6720286 DOI: 10.3390/ijms20163989] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/12/2019] [Accepted: 08/14/2019] [Indexed: 01/15/2023] Open
Abstract
In the arid region Bou-Saâda at the South of Algeria, durum wheat Triticum durum L. cv Waha production is severely threatened by abiotic stresses, mainly drought and salinity. Plant growth-promoting rhizobacteria (PGPR) hold promising prospects towards sustainable and environmentally-friendly agriculture. Using habitat-adapted symbiosis strategy, the PGPR Pantoea agglomerans strain Pa was recovered from wheat roots sampled in Bou-Saâda, conferred alleviation of salt stress in durum wheat plants and allowed considerable growth in this unhostile environment. Strain Pa showed growth up to 35 °C temperature, 5-10 pH range, and up to 30% polyethylene glycol (PEG), as well as 1 M salt concentration tolerance. Pa strain displayed pertinent plant growth promotion (PGP) features (direct and indirect) such as hormone auxin biosynthesis, production of 1-aminocyclopropane-1-carboxylate (ACC) deaminase, and ammonia and phosphate solubilization. PGPR features were stable over wide salt concentrations (0-400 mM). Pa strain was also able to survive in seeds, in the non-sterile and sterile wheat rhizosphere, and was shown to have an endophytic life style. Phylogenomic analysis of strain Pa indicated that Pantoea genus suffers taxonomic imprecision which blurs species delimitation and may have impacted their practical use as biofertilizers. When applied to plants, strain Pa promoted considerable growth of wheat seedlings, high chlorophyll content, lower accumulation of proline, and favored K+ accumulation in the inoculated plants when compared to Na+ in control non-inoculated plants. Metabolomic profiling of strain Pa under one strain many compounds (OSMAC) conditions revealed a wide diversity of secondary metabolites (SM) with interesting salt stress alleviation and PGP activities. All these findings strongly promote the implementation of Pantoea agglomerans strain Pa as an efficient biofertilizer in wheat plants culture in arid and salinity-impacted regions.
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Affiliation(s)
- Hafsa Cherif-Silini
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, Ferhat Abbas University, Setif 19000, Algeria
| | - Bathini Thissera
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, PA12BE Paisley, UK
| | - Ali Chenari Bouket
- Plant Protection Research Department, East Azarbaijan Agricultural and Natural Resources Research and Education Center, AREEO, Tabriz 5355179854, Iran
| | - Nora Saadaoui
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, Ferhat Abbas University, Setif 19000, Algeria
| | - Allaoua Silini
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, Ferhat Abbas University, Setif 19000, Algeria
| | - Manal Eshelli
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, PA12BE Paisley, UK
- Food Science and Technology Department, Faculty of Agriculture, University of Tripoli, Tripoli 13275, Libya
| | | | - Armelle Vallat
- Neuchâtel Platform of Analytical Chemistry, Institute of Chemistry, University of Neuchâtel, 2000 Neuchâtel, Switzerland
| | - Lenka Luptakova
- Department of Biology and Genetics, Institute of Biology, University of Veterinary Medicine and Pharmacy, Zoology and Radiobiology, Komenského, 04181 Kosice, Slovakia
| | - Bilal Yahiaoui
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, Ferhat Abbas University, Setif 19000, Algeria
| | - Semcheddine Cherrad
- CONIPHY, Parc d'activitésen Chuel, Route de Chasselay, 69650 Quincieux, France
| | - Sebastien Vacher
- CONIPHY, Parc d'activitésen Chuel, Route de Chasselay, 69650 Quincieux, France
| | - Mostafa E Rateb
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, PA12BE Paisley, UK
| | - Lassaad Belbahri
- Laboratory of Soil Biology, University of Neuchatel, 2000 Neuchatel, Switzerland.
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19
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Luo Y, Liang J, Zeng G, Li X, Chen M, Jiang L, Xing W, Tang N, Fang Y, Chen X. Evaluation of tetracycline phytotoxicity by seed germination stage and radicle elongation stage tests: A comparison of two typical methods for analysis. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 251:257-263. [PMID: 31082610 DOI: 10.1016/j.envpol.2019.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 04/23/2019] [Accepted: 05/01/2019] [Indexed: 06/09/2023]
Abstract
Biological tests with plant seeds have been adopted in many studies to investigate the phytotoxicity of pollutants to facilitate the control of risks and remain to be optimized. In this work, the experiment with a small sample size (Experiment 1) and the experiment with a large one (Experiment 2) were designed to study the effect of tetracycline (TC) on Chinese cabbage (Brassica rapa L.) at seed germination and radicle elongation stages. At the former stage, germination number data were obtained to analyze the germination energy (GE) and to judge the probability of the number of germinated seeds (Pn) by the binomial distribution model in Experiment 1. While germination time-to-number data were obtained to analyze the mean time to germination (MGT), the estimate of mean time to germination (EMGT) by survival analysis method, the time to germination for 50% of total seeds (T50) and the germination rate (GR) besides GE in Experiment 2. At the latter stage, the data of radicle length (RL) were obtained in all the experiments and the influence from the former stage on this stage was excluded in Experiment 2 but not in Experiment 1. Results showed that TC had universal adverse effects on the latter stage but not on the former stage in the experiments. Considering the availability of germination data for statistical analysis and the robustness of RL data, the methods adopted in Experiment 2 were more feasible than those in Experiment 1. In addition, Chinese cabbage seeds with medium size have the character of rapid germination compared with the commonly used crop species and can be used to shorten the experimental cycle to study the responses of seeds to pollutants to evaluate the phytotoxicity. We introduced survival analysis method to analyze the germination time-to-number data obtained in seed germination test to evaluate the phytotoxicity of tetracycline.
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Affiliation(s)
- Yuan Luo
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Jie Liang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Xiaodong Li
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Ming Chen
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Longbo Jiang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Wenle Xing
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Ning Tang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Yilong Fang
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
| | - Xuwu Chen
- College of Environmental Science and Engineering, Hunan University, Changsha, 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, China
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20
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Peña M, do Nascimento T, Gouveia J, Escudero J, Gómez A, Letona A, Arrieta J, Fdz-Polanco F. Anaerobic submerged membrane bioreactor (AnSMBR) treating municipal wastewater at ambient temperature: Operation and potential use for agricultural irrigation. BIORESOURCE TECHNOLOGY 2019; 282:285-293. [PMID: 30875596 DOI: 10.1016/j.biortech.2019.03.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
A 496 L pilot scale anaerobic submerged membrane bioreactor (AnSMBR) for the treatment of municipal wastewater was evaluated during a year of stable operation at ambient (28-10 °C) temperature, and inoculated with mesophilic inoculum. The temperature was the main parameter affecting the process performance. The chemical oxygen demand (COD) of the effluent was around 150 mg O2/L in the summer period, operating with a volumetric loading rate (VLR) of 5 kg COD/m3 d and hydraulic retention time (HRT) of 8-10 h, with a specific methane production between 0.09 and 0.14 Nm3/kg CODremoved. However, during the winter season, an important increase of effluent COD was observed, and therefore the VLR was decreased to values around 1 kg COD/m3 d in order to recover the quality of the effluent. Biogas production was negligible in this period. The effluent complies with the parameters stipulated by Spanish law regarding the use of treated wastewater for agricultural irrigation.
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Affiliation(s)
- Mar Peña
- Department of Chemical Engineering and Environmental Technology, Dr. Mergelina s/n, 47011 Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina s/n, 47011 Valladolid, Spain.
| | - Thiago do Nascimento
- Department of Chemical Engineering and Environmental Technology, Dr. Mergelina s/n, 47011 Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina s/n, 47011 Valladolid, Spain
| | - Joao Gouveia
- Department of Chemical Engineering and Environmental Technology, Dr. Mergelina s/n, 47011 Valladolid, Spain
| | - Julián Escudero
- CADAGUA S.A., Crtra RM 714, km 3.5, 30520 Jumilla, Murcia, Spain
| | - Alicia Gómez
- I+D+i, CADAGUA S.A., Gran Vía 45, 8ª Planta, 48011 Bilbao, Spain
| | - Alberto Letona
- I+D+i, CADAGUA S.A., Gran Vía 45, 8ª Planta, 48011 Bilbao, Spain
| | - Javier Arrieta
- I+D+i, CADAGUA S.A., Gran Vía 45, 8ª Planta, 48011 Bilbao, Spain
| | - Fernando Fdz-Polanco
- Department of Chemical Engineering and Environmental Technology, Dr. Mergelina s/n, 47011 Valladolid, Spain; Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina s/n, 47011 Valladolid, Spain.
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21
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Slama HB, Cherif-Silini H, Chenari Bouket A, Qader M, Silini A, Yahiaoui B, Alenezi FN, Luptakova L, Triki MA, Vallat A, Oszako T, Rateb ME, Belbahri L. Screening for Fusarium Antagonistic Bacteria From Contrasting Niches Designated the Endophyte Bacillus halotolerans as Plant Warden Against Fusarium. Front Microbiol 2019; 9:3236. [PMID: 30687252 PMCID: PMC6336696 DOI: 10.3389/fmicb.2018.03236] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 12/13/2018] [Indexed: 11/22/2022] Open
Abstract
Date palm (Phoenix dactylifera L.) plantations in North Africa are nowadays threatened with the spread of the Bayoud disease caused by Fusarium oxysporum f. sp. albedinis, already responsible for destroying date production in other infected areas, mainly in Morocco. Biological control holds great promise for sustainable and environmental-friendly management of the disease. In this study, the additional benefits to agricultural ecosystems of using plant growth promoting rhizobacteria (PGPR) or endophytes are addressed. First, PGPR or endophytes can offer an interesting bio-fertilization, meaning that it can add another layer to the sustainability of the approach. Additionally, screening of contrasting niches can yield bacterial actors that could represent wardens against whole genera or groups of plant pathogenic agents thriving in semi-arid to arid ecosystems. Using this strategy, we recovered four bacterial isolates, designated BFOA1, BFOA2, BFOA3 and BFOA4, that proved very active against F. oxysporum f. sp. albedinis. BFOA1-BFOA4 proved also active against 16 Fusarium isolates belonging to four species: F. oxysporum (with strains phytopathogenic of Olea europaea and tomato), F. solani (with different strains attacking O. europaea and potato), F. acuminatum (pathogenic on O. europaea) and F. chlamydosporum (phytopathogenic of O. europaea). BFOA1-BFOA4 bacterial isolates exhibited strong activities against another four major phytopathogens: Botrytis cinerea, Alternaria alternata, Phytophthora infestans, and Rhizoctonia bataticola. Isolates BFOA1-BFOA4 had the ability to grow at temperatures up to 35°C, pH range of 5-10, and tolerate high concentrations of NaCl and up to 30% PEG. The isolates also showed relevant direct and indirect PGP features, including growth on nitrogen-free medium, phosphate solubilization and auxin biosynthesis, as well as resistance to metal and xenobiotic stress. Phylogenomic analysis of BFOA1-BFOA4 isolates indicated that they all belong to Bacillus halotolerans, which could therefore considered as a warden against Fusarium infection in plants. Comparative genomics allowed us to functionally describe the open pan genome of B. halotolerans and LC-HRMS and GCMS analyses, enabling the description of diverse secondary metabolites including pulegone, 2-undecanone, and germacrene D, with important antimicrobial and insecticidal properties. In conclusion, B. halotolerans could be used as an efficient bio-fertilizer and bio-control agent in semi-arid and arid ecosystems.
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Affiliation(s)
- Houda Ben Slama
- NextBiotech, Agareb, Tunisia
- Institut de l’Olivier Sfax, Sfax, Tunisia
| | - Hafsa Cherif-Silini
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, University Ferhat Abbas of Setif, Setif, Algeria
| | | | - Mallique Qader
- School of Science and Sport, University of the West of Scotland, Paisley, United Kingdom
- National Institute of Fundamental Studies, Kandy, Sri Lanka
| | - Allaoua Silini
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, University Ferhat Abbas of Setif, Setif, Algeria
| | - Bilal Yahiaoui
- Laboratory of Applied Microbiology, Department of Microbiology, Faculty of Natural and Life Sciences, University Ferhat Abbas of Setif, Setif, Algeria
| | | | - Lenka Luptakova
- Department of Biology and Genetics, Institute of Biology, Zoology and Radiobiology, University of Veterinary Medicine and Pharmacy in Košice, Košice, Slovakia
| | | | - Armelle Vallat
- Neuchatel Platform of Analytical Chemistry, Institute of Chemistry, University of Neuchâtel, Neuchâtel, Switzerland
| | - Tomasz Oszako
- Department of Forest Protection of the Forest Research Institute in Sękocin Stary, Raszyn, Poland
| | - Mostafa E. Rateb
- School of Science and Sport, University of the West of Scotland, Paisley, United Kingdom
| | - Lassaad Belbahri
- NextBiotech, Agareb, Tunisia
- Laboratory of Soil Biology, University of Neuchâtel, Neuchâtel, Switzerland
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22
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Sponza DT, Alicanoglu P. Reuse and recovery of raw hospital wastewater containing ofloxacin after photocatalytic treatment with nano graphene oxide magnetite. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2018; 77:304-322. [PMID: 29377816 DOI: 10.2166/wst.2017.531] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Inadequate treatment of hospital wastewater could result in considerable risks to public health due to its macro- and micropollutant content. In order to eliminate this problem, a new nanoparticle composite was produced under laboratory conditions and a photocatalytic degradation approach was used. Chemical oxygen demand (COD), biological oxygen demand (BOD5), total suspended solids (TSS), total Kjeldahl nitrogen (TKN), total phosphorus (TP) (macro) and oflaxin (micro) pollutant removal were investigated with the nano graphene oxide magnetite (Nano-GO/M) particles by two different processes, namely adsorption and photodegradation. Low removal efficiencies (21-60%) were obtained in the adsorption process for the parameters given above, after 90 min contact time at a pH of 7.8 with 5 g/L Nano-GO/M composite. Using the photodegradation process, higher removal efficiencies were obtained with 2 g/L Nano-GO/M composite for COD (88%), TSS (82%), TKN (95%) and oflaxin (97%), at pH 7.8 after 60 min irradiation time at a UV power of 300 W. The synthesized nanoparticle was reused for two sequential treatments of pharmaceutical wastewater with no significant losses of removal efficiencies (for oflaxin 97%-90%). The quality of the treated hospital wastewater was first class according to the Turkish Water Pollution Control Regulations criteria. This water could also be used for irrigation purposes.
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Affiliation(s)
- D T Sponza
- Environmental Engineering, Engineering Faculty, Dokuz Eylül University, Kaynaklar Campus, Buca, Turkey E-mail:
| | - P Alicanoglu
- Environmental Engineering, Engineering Faculty, Pamukkale University, Kınıklı Campus, Denizli, Turkey
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23
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Belbahri L, Chenari Bouket A, Rekik I, Alenezi FN, Vallat A, Luptakova L, Petrovova E, Oszako T, Cherrad S, Vacher S, Rateb ME. Comparative Genomics of Bacillus amyloliquefaciens Strains Reveals a Core Genome with Traits for Habitat Adaptation and a Secondary Metabolites Rich Accessory Genome. Front Microbiol 2017; 8:1438. [PMID: 28824571 PMCID: PMC5541019 DOI: 10.3389/fmicb.2017.01438] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Accepted: 07/17/2017] [Indexed: 12/04/2022] Open
Abstract
The Gram positive, non-pathogenic endospore-forming soil inhabiting prokaryote Bacillus amyloliquefaciens is a plant growth-promoting rhizobacterium. Bacillus amyloliquefaciens processes wide biocontrol abilities and numerous strains have been reported to suppress diverse bacterial, fungal and fungal-like pathogens. Knowledge about strain level biocontrol abilities is warranted to translate this knowledge into developing more efficient biocontrol agents and bio-fertilizers. Ever-expanding genome studies of B. amyloliquefaciens are showing tremendous increase in strain-specific new secondary metabolite clusters which play key roles in the suppression of pathogens and plant growth promotion. In this report, we have used genome mining of all sequenced B. amyloliquefaciens genomes to highlight species boundaries, the diverse strategies used by different strains to promote plant growth and the diversity of their secondary metabolites. Genome composition of the targeted strains suggest regions of genomic plasticity that shape the structure and function of these genomes and govern strain adaptation to different niches. Our results indicated that B. amyloliquefaciens: (i) suffer taxonomic imprecision that blurs the debate over inter-strain genome diversity and dynamics, (ii) have diverse strategies to promote plant growth and development, (iii) have an unlocked, yet to be delimited impressive arsenal of secondary metabolites and products, (iv) have large number of so-called orphan gene clusters, i.e., biosynthetic clusters for which the corresponding metabolites are yet unknown, and (v) have a dynamic pan genome with a secondary metabolite rich accessory genome.
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Affiliation(s)
- Lassaad Belbahri
- Laboratory of Soil Biology, University of NeuchatelNeuchatel, Switzerland.,NextBiotechAgareb, Tunisia
| | - Ali Chenari Bouket
- NextBiotechAgareb, Tunisia.,Graduate School of Life and Environmental Sciences, Osaka Prefecture UniversitySakai, Japan.,Young Researchers and Elite Club, Tabriz Branch, Islamic Azad UniversityTabriz, Iran
| | | | | | - Armelle Vallat
- Neuchâtel Platform of Analytical Chemistry, Institute of Chemistry, University of NeuchâtelNeuchâtel, Switzerland
| | - Lenka Luptakova
- NextBiotechAgareb, Tunisia.,Department of Biology and Genetics, Institute of Biology, Zoology and Radiobiology, University of Veterinary Medicine and PharmacyKosice, Slovakia
| | - Eva Petrovova
- Institute of Anatomy, University of Veterinary Medicine and PharmacyKosice, Slovakia
| | | | | | | | - Mostafa E Rateb
- School of Science and Sport, University of the West of ScotlandPaisley, United Kingdom
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