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Li H, Chen S, Wang M, Shi S, Zhao W, Xiong G, Zhou J, Qu J. Phosphate solubilization and plant growth properties are promoted by a lactic acid bacterium in calcareous soil. Appl Microbiol Biotechnol 2024; 108:24. [PMID: 38159115 DOI: 10.1007/s00253-023-12850-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 09/19/2023] [Accepted: 10/03/2023] [Indexed: 01/03/2024]
Abstract
On the basis of good phosphate solubilization ability of a lactic acid bacteria (LAB) strain Limosilactobacillus sp. LF-17, bacterial agent was prepared and applied to calcareous soil to solubilize phosphate and promote the growth of maize seedlings in this study. A pot experiment showed that the plant growth indicators, phosphorus content, and related enzyme activity of the maize rhizospheric soils in the LF treatment (treated with LAB) were the highest compared with those of the JP treatment (treated with phosphate solubilizing bacteria, PSB) and the blank control (CK). The types of organic acids in maize rhizospheric soil were determined through LC-MS, and 12 acids were detected in all the treatments. The abundant microbes belonged to the genera of Lysobacter, Massilia, Methylbacillus, Brevundimonas, and Limosilactobacillus, and they were beneficial to dissolving phosphate or secreting growth-promoting phytohormones, which were obviously higher in the LF and JP treatments than in CK as analyzed by high-throughput metagenomic sequencing methods. In addition, the abundance values of several enzymes, Kyoto Encyclopedia of Genes and Genomes (KEGG) orthology, and Carbohydrate-Active Enzymes (CAZys), which were related to substrate assimilation and metabolism, were the highest in the LF treatment. Therefore, aside from phosphate-solubilizing microorganisms, LAB can be used as environmentally friendly crop growth promoters in agriculture and provide another viable option for microbial fertilizers. KEY POINTS: • The inoculation of LAB strain effectively promoted the growth and chlorophyll synthesis of maize seedlings. • The inoculation of LAB strain significantly increased the TP content of maize seedlings and the AP concentration of the rhizosphere soil. • The inoculation of LAB strain increased the abundances of the dominant beneficial functional microbes in the rhizosphere soil.
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Affiliation(s)
- Haifeng Li
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China.
| | - Siyuan Chen
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Mengyu Wang
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Shuoshuo Shi
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Wenjian Zhao
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Guoyang Xiong
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Jia Zhou
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
| | - Jianhang Qu
- College of Biological Engineering, Henan University of Technology, Zhengzhou, 450001, China
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Guo Y, Chen J, Liao H, Wu K, Xiao Z, Duan Q, Wang J, Shu Y. Defense of cabbages against herbivore cutworm Spodoptera litura under Cd stress and insect herbivory stress simultaneously. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 358:124519. [PMID: 38986765 DOI: 10.1016/j.envpol.2024.124519] [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: 12/27/2023] [Revised: 06/20/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024]
Abstract
Biotic (e.g., heavy metal) and abiotic stress (e.g., insect attack) can affect plant chemical defense, but little is known about the changes in plant defense when they occur concurrently. Herein, the impacts of heavy metal cadmium (Cd) stress and insect herbivory stress on the direct and indirect defense of two cultivar cabbages of Brassica campestris, the low-Cd cultivar Lvbao701 and the high-Cd cultivar Chicaixin No.4, against the herbivore cutworm Spodoptera litura were investigated. Although 10 mg kg-1 Cd stress alone inhibited leaf secondary metabolites (total phenolics, flavonoids), it reduced the feeding rate and odor selection of S. litura towards both cultivar cabbages, especially for Lvbao701, by increasing leaf Cd content and repellent volatile organic compounds (VOCs) (6-methyl-5-hepten-2-one, 7,9-di-tert-butyl-1-oxaspiro (4,5)deca-6,9-diene-2,8-dione), and reducing soluble sugar and attractive VOCs (3-methyl-3-pentanol, 2,5-hexanedione, tetradecanal). Under 2.5 mg kg-1 Cd and herbivory stress, although leaf total phenolics and flavonoids increased significantly, the feeding rate and odor selection of S. litura towards both cultivar cabbages increased, especially for Chicaixin No.4, indicating that the chemical defense of cabbages was depressed. Therefore, Cd stress alone improved the insect resistance of cabbages, whereas herbivory stress weakened the enhanced cabbages defence by Cd stress. The low-Cd cultivar Lvbao701 presented stronger insect resistance than Chicaixin No.4, suggesting that Lvbao701 application in Cd-polluted soil can not only decrease Cd transmission to higher levels in the food chain but also reduce pest occurrence.
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Affiliation(s)
- Yeshan Guo
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Jin Chen
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; School of Life Sciences, Guizhou Normal University, Guiyang 550025, China
| | - Huimin Liao
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Kaixuan Wu
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Zhenggao Xiao
- Institute of Environmental Processes and Pollution Control, and School of Environmental and Civil Engineering, Jiangnan University, Wuxi 214122, China
| | - Qijiao Duan
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Jianwu Wang
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Yinghua Shu
- Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, Guangdong Engineering Research Center for Modern Eco-Agriculture and Circular Agriculture, Department of Ecology, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China.
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Pugazhendhi A, Govindasamy C, Sharma A. Heavy metal accumulation in root and shoot tapioca plant biomass grown in agriculture land situated around the magnesite mine tailings. ENVIRONMENTAL RESEARCH 2024; 257:119287. [PMID: 38823610 DOI: 10.1016/j.envres.2024.119287] [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: 04/13/2024] [Revised: 05/16/2024] [Accepted: 05/29/2024] [Indexed: 06/03/2024]
Abstract
Heavy metal pollution in soil has emerged as a major environmental concern. This can be attributed to human activities such as mining, modern agriculture, and industrialization. This study was conducted to determine how heavy metals spread from mine tailings to surrounding farmland. Metal absorption and accumulation were also investigated in the root and shoot biomass of tapioca crops grown in those farmlands. Metal concentrations in MTAS1 were 85.3 ± 1.2, 45.8 ± 1.5, 134.8 ± 1.7, 92.4 ± 2.2, and 78.95 ± 1.4 mg kg-1, respectively. Heavy metal concentrations in MTAS2 and MTAS3 were found to be 79.62 ± 1.6, 75.4 ± 1.5, 41.31 ± 1.1, 47.8 ± 1.6, 142.5 ± 2.1, 128.4 ± 1.4, 86.2 ± 1.9, 79.5 ± 1.3, and 83.4 ± 1.2 mg kg-1, respectively. Tapioca crop shoot and root biomass grown at these metal polluted sites absorbed and accumulated significant amounts of Cd, Cu, Zn, Pb, Ni, and Mn. Notably, the metal content of the tapioca crop's root and shoot biomass exceeded national standards.
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Affiliation(s)
- Arivalagan Pugazhendhi
- Tecnologico de Monterrey, Centre of Bioengineering, NatProLab, AgroInnovationLab, School of Engineering and Sciences, Queretaro, 76130, Mexico
| | - Chandramohan Govindasamy
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh-11433, Saudi Arabia
| | - Ashutosh Sharma
- Tecnologico de Monterrey, Centre of Bioengineering, NatProLab, AgroInnovationLab, School of Engineering and Sciences, Queretaro, 76130, Mexico.
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Hossain MS, Garcia Caparros P, Mühling KH. Editorial: Mineral nutrition and plant stress tolerance. FRONTIERS IN PLANT SCIENCE 2024; 15:1461651. [PMID: 39119494 PMCID: PMC11306120 DOI: 10.3389/fpls.2024.1461651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2024] [Accepted: 07/12/2024] [Indexed: 08/10/2024]
Affiliation(s)
- Md Sazzad Hossain
- Kiel University, Kiel, Germany
- Sylhet Agricultural University, Sylhet, Bangladesh
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García-Latorre C, Reynolds-Marzal MD, De la Peña-Lastra S, Pinheiro N, Poblaciones MJ. Soil and Foliar Zinc Biofortification of Triticale (x Triticosecale) under Mediterranean Conditions: Effects on Forage Yield and Quality. PLANTS (BASEL, SWITZERLAND) 2024; 13:1917. [PMID: 39065445 PMCID: PMC11279992 DOI: 10.3390/plants13141917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2024] [Revised: 07/03/2024] [Accepted: 07/03/2024] [Indexed: 07/28/2024]
Abstract
Zinc (Zn) deficiency represents a significant global concern, affecting both plant and human health, particularly in regions with Zn-depleted soils. Agronomic biofortification strategies, such as the application of Zn fertilizers, offer a cost-effective approach to increase Zn levels in crops. This study aimed to assess the efficacy of soil and foliar Zn biofortification, applied as an aqueous solution of 0.5% zinc sulphate (ZnSO4·7H2O), on triticale (x Triticosecale) grown under Mediterranean conditions. The study was conducted over two growing seasons (2017/18 and 2018/19) in southern Spain, evaluating the effects on biomass yield; forage quality, including crude protein, Van Soest detergent fiber, organic matter digestibility, and relative forage value; and nutrient accumulation. Soil treatment consisted in the application of 50 kg of ZnSO4·7H2O ha-1 solely at the beginning of the first campaign to assess the residual effect on the second year. In contrast, the foliar treatment consisted of two applications of 4 kg of ZnSO4·7H2O ha-1 per campaign, one at the beginning of tillering and the other at the appearance of the first node. The foliar application increased the Zn content of the forage to adequate levels, while the soil application resulted in a 33% increase in biomass production, which is particularly beneficial for farmers. Overall quality was favored by the combined soil + foliar application, and no adverse antagonistic effects on other nutrients were detected. Instead, a synergistic interaction between Se and Zn was observed, which improved the efficacy of this important micronutrient for livestock and human wellbeing.
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Affiliation(s)
- Carlos García-Latorre
- Department of Agronomy and Forest Environment Engineering, University of Extremadura, Avda. Adolfo Suárez s/n, 06007 Badajoz, Spain; (C.G.-L.); (M.D.R.-M.); (S.D.l.P.-L.)
| | - María Dolores Reynolds-Marzal
- Department of Agronomy and Forest Environment Engineering, University of Extremadura, Avda. Adolfo Suárez s/n, 06007 Badajoz, Spain; (C.G.-L.); (M.D.R.-M.); (S.D.l.P.-L.)
| | - Saúl De la Peña-Lastra
- Department of Agronomy and Forest Environment Engineering, University of Extremadura, Avda. Adolfo Suárez s/n, 06007 Badajoz, Spain; (C.G.-L.); (M.D.R.-M.); (S.D.l.P.-L.)
| | - Nuno Pinheiro
- National Institute for Agricultural and Veterinary Research (INIAV), Estrada de Gil Vaz, 7350-228 Elvas, Portugal;
| | - María José Poblaciones
- Department of Agronomy and Forest Environment Engineering, University of Extremadura, Avda. Adolfo Suárez s/n, 06007 Badajoz, Spain; (C.G.-L.); (M.D.R.-M.); (S.D.l.P.-L.)
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Cyriac J, Sreejit CM, Yuvaraj M, Joseph S, Priya RS, Saju F, Thomas B. Zinc-exchanged montmorillonite clay: A promising slow-release nanofertilizer for rice (Oryza sativa L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108790. [PMID: 38838571 DOI: 10.1016/j.plaphy.2024.108790] [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: 04/02/2024] [Revised: 05/26/2024] [Accepted: 05/31/2024] [Indexed: 06/07/2024]
Abstract
This study is to examine zinc exchanged montmorillonite (Zn-MMT) as a potential slow release nanofertilizer for rice crop. The effective intercalation of zinc within the montmorillonite inter layers was firmly established via analytical techniques including Zeta potential, FE-SEM (Field Emission Scanning Electron Microscopy) with Energy Dispersive X-ray Analysis (EDAX), Transmission Electron Microscope (TEM), X-Ray Diffraction (XRD) and Fourier Transform Infrared Spectroscopy (FT-IR). The efficacy of Zn-MMT was examined by evaluating its ability to facilitate controlled zinc release, as confirmed through an incubation study. Subsequently, the kinetics of zinc release was analyzed by different mathematical models such as Zero-order kinetics, First-order kinetics, the Higuchi model, and the Korsmeyer-Peppas model. From the pot culture study spanning 90 days the results indicated that Zn-MMT had significantly high plant height, Leaf Area Index (LAI), Dry Matter Production (DMP), number of tillers per hill, panicles length, increased grain and straw yield, in comparison with conventional zinc sulphate (ZnSO4). Total phenol, total protein and total chlorophyll content were significantly at higher levels with Zn-MMT treated rice crops as compared to conventional fertilizers and control. A similar trend was seen with phytochemicals such as Indole Acetic Acid (IAA), Superoxide Dismutase (SOD) and Carbonic Anhydrase (CA). Notably, rice grains harvested from Zn-MMTtreated crops exhibited significantly higher zinc content than those using other treatments. This Zn-MMT can be confirmed as a better alternative to conventional zinc sulphate fertilizers owing to its slow-release of nutrient into the soil and thus increased zinc use efficiency.
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Affiliation(s)
- Jaiby Cyriac
- Department of Botany, Newman College, Thodupuzha, Kerala, India; Mahatma Gandhi University Centre for Research in Botany, Research Department of Botany, SNM College, Maliankara, Kerala, India.
| | - C M Sreejit
- Mahatma Gandhi University Centre for Research in Botany, Research Department of Botany, SNM College, Maliankara, Kerala, India
| | - M Yuvaraj
- Agricultural College and Research Institute, Vazhavachanur, Tiruvannamalai, Tamil Nadu, India
| | - Sindhu Joseph
- Department of Chemistry, Bharata Mata College, Thrikkakara, Kerala, India
| | - R Sathya Priya
- Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
| | - Fels Saju
- Department of pharmaceutical science, Nirmala College of Pharmacy, Muvattupuzha, Kerala, India
| | - Bejoy Thomas
- Mahatma Gandhi University Centre for Research in Chemistry, Department of Chemistry, Newman College, Thodupuzha, Kerala, India.
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Outram MA, Chen J, Broderick S, Li Z, Aditya S, Tasneem N, Arndell T, Blundell C, Ericsson DJ, Figueroa M, Sperschneider J, Dodds PN, Williams SJ. AvrSr27 is a zinc-bound effector with a modular structure important for immune recognition. THE NEW PHYTOLOGIST 2024; 243:314-329. [PMID: 38730532 DOI: 10.1111/nph.19801] [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: 01/02/2024] [Accepted: 04/17/2024] [Indexed: 05/13/2024]
Abstract
Effector proteins are central to the success of plant pathogens, while immunity in host plants is driven by receptor-mediated recognition of these effectors. Understanding the molecular details of effector-receptor interactions is key for the engineering of novel immune receptors. Here, we experimentally determined the crystal structure of the Puccinia graminis f. sp. tritici (Pgt) effector AvrSr27, which was not accurately predicted using AlphaFold2. We characterised the role of the conserved cysteine residues in AvrSr27 using in vitro biochemical assays and examined Sr27-mediated recognition using transient expression in Nicotiana spp. and wheat protoplasts. The AvrSr27 structure contains a novel β-strand rich modular fold consisting of two structurally similar domains that bind to Zn2+ ions. The N-terminal domain of AvrSr27 is sufficient for interaction with Sr27 and triggering cell death. We identified two Pgt proteins structurally related to AvrSr27 but with low sequence identity that can also associate with Sr27, albeit more weakly. Though only the full-length proteins, trigger Sr27-dependent cell death in transient expression systems. Collectively, our findings have important implications for utilising protein prediction platforms for effector proteins, and those embarking on bespoke engineering of immunity receptors as solutions to plant disease.
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Affiliation(s)
- Megan A Outram
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, 2601, Australia
| | - Jian Chen
- Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, 2601, Australia
| | - Sean Broderick
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Zhao Li
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Shouvik Aditya
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Nuren Tasneem
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
| | - Taj Arndell
- Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, 2601, Australia
| | - Cheryl Blundell
- Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, 2601, Australia
| | - Daniel J Ericsson
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
- Australian Synchrotron, Macromolecular Crystallography, Clayton, Vic., 3186, Australia
| | - Melania Figueroa
- Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, 2601, Australia
| | - Jana Sperschneider
- Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, 2601, Australia
| | - Peter N Dodds
- Commonwealth Scientific and Industrial Research Organisation, Agriculture and Food, Canberra, ACT, 2601, Australia
| | - Simon J Williams
- Research School of Biology, The Australian National University, Canberra, ACT, 2601, Australia
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Guo J, Zhang S, Li J. Impact of three exogenous phosphorus-solubilizing bacteria on zinc and selenium contents and rhizosphere soil nutrients of Longjing and Huangjinya tea plants. Front Microbiol 2024; 15:1413538. [PMID: 38989025 PMCID: PMC11233738 DOI: 10.3389/fmicb.2024.1413538] [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: 04/07/2024] [Accepted: 06/14/2024] [Indexed: 07/12/2024] Open
Abstract
Phosphate-solubilizing bacteria (PSB) enhance plant phosphorus utilization through their ability to dissolve phosphorus. To address the low utilization of nitrogen, phosphorus, potassium, zinc, and selenium by tea plants in acidic, selenium-rich soils, the study aimed to investigate the impact of exogenous PSB on soil nutrients and the absorption of zinc and selenium by tea plants. Following the inoculation of potted Longjing and Huangjinya varieties with exogenous phosphorus-solubilizing bacteria, we determined the concentrations of AN, AP, AK, Zn, and Se in their rhizosphere soil, in addition to the Zn and Se contents in their aboveground and belowground parts. The results show that after respective treatment with the three PSB, the concentration of available P in the tea plant rhizosphere soil significantly increased, with PMS08 having the most pronounced effect.After the same treatment, In the rhizosphere soil of Longjing tea plants, the AN content increased by 26.47%, 18.41%, and 7.51%, respectively, relative to the control, while the AK content decreased in the rhizosphere soil of Huangjinya tea plants. Inoculation with the three PSB resulted in a greater content of available Se in both the aboveground and belowground parts of the two tea plants. After inoculation with PMS20, the available Zn content of the belowground parts of Longjing and Huangjinya tea plants respectively decreased by 13.42% and 15.69% in comparison with the control. Additionally, after inoculating Longjing tea plants with PSt09 and Huangjinya tea plants with PMS08, the content of available Zn in their belowground parts significantly decreased by 9.22% and 35.74%, respectively. Evidently, the inoculation with the three phosphorus-solubilizing bacteria is beneficial for the uptake of available P by tea plants, promoting the utilization and accumulation of available Se. However, the content of AN or AK in rhizosphere soil varies between different tea plant varieties inoculated with the same kind of phosphorus-solubilizing bacteria. Moreover, the content of available Zn in tea plants also differs, highlighting the need to further investigate the differential effects of phosphorus-solubilizing bacteria on different plant varieties.
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Affiliation(s)
- JinMei Guo
- School of Geography and Resources, Guizhou Education University, Guiyang, China
- Institute of Soil and Environment Bioremediation in Karst Habitats, Guizhou Education University, Guiyang, China
- Key Laboratory of Biological Resources Exploitation and Utilization in Colleges and Universities of Guizhou Province, Guiyang, China
| | - ShuQing Zhang
- School of Geography and Resources, Guizhou Education University, Guiyang, China
- Institute of Soil and Environment Bioremediation in Karst Habitats, Guizhou Education University, Guiyang, China
- Key Laboratory of Biological Resources Exploitation and Utilization in Colleges and Universities of Guizhou Province, Guiyang, China
| | - JianFeng Li
- Institute of Soil and Environment Bioremediation in Karst Habitats, Guizhou Education University, Guiyang, China
- Key Laboratory of Biological Resources Exploitation and Utilization in Colleges and Universities of Guizhou Province, Guiyang, China
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Skwarek-Fadecka M, Nawrocka J, Sieczyńska K, Patykowski J, Posmyk MM. Effect of Oak Powdery Mildew on Ascorbate-Glutathione Cycle and Other Antioxidants in Plant- Erysiphe alphitoides Interaction. Cells 2024; 13:1035. [PMID: 38920663 PMCID: PMC11201405 DOI: 10.3390/cells13121035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Revised: 06/07/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024] Open
Abstract
Erysiphe alphitoides is a species of powdery mildew responsible for the major foliar disease of oak trees, including Quercus robur. Infection with E. alphitoides leads to a reduction in the growth of the trees and in their ability to survive. This paper reports on the biochemical changes characteristic of defence responses in oak leaves with different infection area sizes, collected in July, August, and September during three growing seasons. The study highlights the effect of E. alphitoides infection on changes in the ascorbate-glutathione cycle, phenolic compound profile, and metal content (mineral distribution). Visible symptoms of pathogen infection appeared gradually in July, but the most intense biochemical plant responses in oak leaves were detected mainly in August and September. These responses included increased ascorbate-glutathione enzyme activities, phenolic compounds, and metal contents. In addition, microscopic analyses revealed a strong fluorescence signal of lignin in the epidermis of pathogen-infected leaves. The involvement of the studied compounds in the basic defence mechanisms of oak against E. alphitoides infection is discussed in the paper.
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Affiliation(s)
- Monika Skwarek-Fadecka
- Department of Plant Ecophysiology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Łódź, Poland;
- Department of Plant Physiology and Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Łódź, Poland;
| | - Justyna Nawrocka
- Department of Plant Physiology and Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Łódź, Poland;
| | | | | | - Małgorzata Maria Posmyk
- Department of Plant Ecophysiology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Łódź, Poland;
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Safaeizadeh M, Boller T, Becker C. Comparative RNA-seq analysis of Arabidopsis thaliana response to AtPep1 and flg22, reveals the identification of PP2-B13 and ACLP1 as new members in pattern-triggered immunity. PLoS One 2024; 19:e0297124. [PMID: 38833485 PMCID: PMC11149889 DOI: 10.1371/journal.pone.0297124] [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: 05/23/2023] [Accepted: 12/28/2023] [Indexed: 06/06/2024] Open
Abstract
In this research, a high-throughput RNA sequencing-based transcriptome analysis technique (RNA-Seq) was used to evaluate differentially expressed genes (DEGs) in the wild type Arabidopsis seedlings in response to AtPep1, a well-known peptide representing an endogenous damage-associated molecular pattern (DAMP), and flg22, a well-known microbe-associated molecular pattern (MAMP). We compared and dissected the global transcriptional landscape of Arabidopsis thaliana in response to AtPep1 and flg22 and could identify shared and unique DEGs in response to these elicitors. We found that while a remarkable number of flg22 up-regulated genes were also induced by AtPep1, 256 genes were exclusively up-regulated in response to flg22, and 328 were exclusively up-regulated in response to AtPep1. Furthermore, among down-regulated DEGs upon flg22 treatment, 107 genes were exclusively down-regulated by flg22 treatment, while 411 genes were exclusively down-regulated by AtPep1. We found a number of hitherto overlooked genes to be induced upon treatment with either flg22 or with AtPep1, indicating their possible involvement general pathways in innate immunity. Here, we characterized two of them, namely PP2-B13 and ACLP1. pp2-b13 and aclp1 mutants showed increased susceptibility to infection by the virulent pathogen Pseudomonas syringae DC3000 and its mutant Pst DC3000 hrcC (lacking the type III secretion system), as evidenced by increased proliferation of the two pathogens in planta. Further, we present evidence that the aclp1 mutant is deficient in ethylene production upon flg22 treatment, while the pp2-b13 mutant is deficient in the production of reactive oxygen species (ROS). The results from this research provide new information for a better understanding of the immune system in Arabidopsis.
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Affiliation(s)
- Mehdi Safaeizadeh
- Department of Cellular and Molecular Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
- Zürich-Basel Plant Science Center, Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Thomas Boller
- Zürich-Basel Plant Science Center, Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Claude Becker
- LMU Biocentre, Faculty of Biology, Ludwig-Maximilian-University Munich, Martinsried, Germany
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Alagarswamy S, Karuppasami KM, Djanaguiraman M, Venugopal PBR, Natarajan S, Rathinavelu S, Dhashnamurthi V, Veerasamy R, Parasuraman B. Sustaining the Yield of Maize, Blackgram, Greengram, Groundnut, Cotton, Sugarcane, and Coconut through the Application of Nutrients and Plant Growth Regulator Mixture. PLANTS (BASEL, SWITZERLAND) 2024; 13:1549. [PMID: 38891359 PMCID: PMC11175130 DOI: 10.3390/plants13111549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 05/25/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024]
Abstract
The foliar application of nutrients and plant growth regulators (PGRs) at critical crop growth periods can improve the yield of field crops. Hence, the present study was conducted to quantify the effects of the combined application of nutrients and PGRs (crop-specific formulation) on maize, blackgram, greengram, groundnut, cotton, sugarcane, and coconut yield. In all the crops except coconut, the treatments included (i) a foliar spray of crop-specific nutrients and PGR combinations and (ii) an unsprayed control. In coconut, the treatments included (i) the root feeding of coconut-specific nutrients and PGR combinations and (ii) an untreated control. Crop-specific nutrient and PGR formulations were sprayed, namely, Tamil Nadu Agricultural University (TNAU) maize maxim 1.5% at the tassel initiation and grain-filling stages of maize, TNAU pulse wonder 1.0% at the peak flowering stage of green gram and black gram, TNAU groundnut-rich 1.0% at the flowering and pod-filling stages of groundnut, TNAU cotton plus 1.25% at the flowering and boll development stages of cotton, and TNAU sugarcane booster 0.5% at 45 days after planting (DAP), 0.75% at 60 DAP, and 1.0% at 75 DAP of sugarcane. The results showed that the foliar application of TNAU maize maxim, TNAU pulse wonder, TNAU groundnut-rich, TNAU cotton plus and TNAU sugarcane booster and the root feeding of TNAU coconut tonic increased the yield of maize, pulses, groundnut, cotton, sugarcane, and coconut, resulting in higher economic returns.
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Affiliation(s)
- Senthil Alagarswamy
- Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore 641003, India; (S.A.); (P.B.R.V.); (S.R.); (V.D.); (R.V.); (B.P.)
| | - Kalarani M. Karuppasami
- Directorate of Crop Management, Tamil Nadu Agricultural University, Coimbatore 641003, India
| | - Maduraimuthu Djanaguiraman
- Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore 641003, India; (S.A.); (P.B.R.V.); (S.R.); (V.D.); (R.V.); (B.P.)
| | - Prasad B. R. Venugopal
- Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore 641003, India; (S.A.); (P.B.R.V.); (S.R.); (V.D.); (R.V.); (B.P.)
| | - Sritharan Natarajan
- Department of Rice, Tamil Nadu Agricultural University, Coimbatore 641003, India;
| | - Sivakumar Rathinavelu
- Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore 641003, India; (S.A.); (P.B.R.V.); (S.R.); (V.D.); (R.V.); (B.P.)
| | - Vijayalakshmi Dhashnamurthi
- Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore 641003, India; (S.A.); (P.B.R.V.); (S.R.); (V.D.); (R.V.); (B.P.)
| | - Ravichandran Veerasamy
- Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore 641003, India; (S.A.); (P.B.R.V.); (S.R.); (V.D.); (R.V.); (B.P.)
| | - Boominathan Parasuraman
- Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore 641003, India; (S.A.); (P.B.R.V.); (S.R.); (V.D.); (R.V.); (B.P.)
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12
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Kuvelja A, Morina F, Mijovilovich A, Bokhari SNH, Konik P, Koloniuk I, Küpper H. Zinc priming enhances Capsicum annuum immunity against infection by Botrytis cinerea- From the whole plant to the molecular level. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 343:112060. [PMID: 38460554 DOI: 10.1016/j.plantsci.2024.112060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/29/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
Micronutrient manipulation can enhance crop resilience against pathogens, but the mechanisms are mostly unknown. We tested whether priming Capsicum annuum plants with zinc (5 μM Zn) or manganese (3 μM Mn) for six weeks increases their immunity against the generalist necrotroph Botrytis cinerea compared to deficient (0.1 μM Zn, 0.02 μM Mn) and control conditions (1 μM Zn, 0.6 μM Mn). Zinc priming reduced the pathogen biomass and lesion area and preserved CO2 assimilation and stomatal conductance. Zinc mobilization at the infection site, visualized by micro-X-ray fluorescence, was accompanied by increased Zn protein binding obtained by size exclusion HPLC-ICP/MS. A common metabolic response to fungal infection in Zn- and Mn-primed plants was an accumulation of corchorifatty acid F, a signaling compound, and the antifungal compound acetophenone. In vitro tests showed that the binding of Zn2+ increased, while Mn2+ binding decreased acetophenone toxicity against B. cinerea at concentrations far below the toxicity thresholds of both metals in unbound (aquo complex) form. The metal-specific response to fungal infection included the accumulation of phenolics and amino acids (Mn), and the ligand isocitrate (Zn). The results highlight the importance of Zn for pepper immunity through direct involvement in immunity-related proteins and low molecular weight Zn-complexes, while Mn priming was inefficient.
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Affiliation(s)
- Anđela Kuvelja
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Biophysics and Biochemistry, Branišovská 31/1160, České Budějovice 370 05, Czech Republic; University of South Bohemia, Faculty of Science, Branišovská 31/1160, České Budějovice 370 05, Czech Republic
| | - Filis Morina
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Biophysics and Biochemistry, Branišovská 31/1160, České Budějovice 370 05, Czech Republic.
| | - Ana Mijovilovich
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Biophysics and Biochemistry, Branišovská 31/1160, České Budějovice 370 05, Czech Republic
| | - Syed Nadeem Hussain Bokhari
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Biophysics and Biochemistry, Branišovská 31/1160, České Budějovice 370 05, Czech Republic
| | - Peter Konik
- University of South Bohemia, Faculty of Science, Branišovská 31/1160, České Budějovice 370 05, Czech Republic
| | - Igor Koloniuk
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Virology, Branišovská 31/1160, České Budějovice 370 05, Czech Republic
| | - Hendrik Küpper
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Laboratory of Plant Biophysics and Biochemistry, Branišovská 31/1160, České Budějovice 370 05, Czech Republic; University of South Bohemia, Faculty of Science, Branišovská 31/1160, České Budějovice 370 05, Czech Republic.
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13
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Guo D, Tian K, Peng X, Liu S, Xu X, Tian W. Cadmium/zinc stresses and plant cultivation influenced soil microflora: a pot experiment conducted in field. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 277:116384. [PMID: 38657451 DOI: 10.1016/j.ecoenv.2024.116384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 03/26/2024] [Accepted: 04/21/2024] [Indexed: 04/26/2024]
Abstract
It's of great challenge to address for heavy metal-contaminated soil. Once the farmland is contaminated with heavy metals, the microbial ecology of the plant rhizosphere will change, which in turn impacts crop productivity and quality. However, few studies have explored the effects of heavy metals on plant rhizosphere microbes in farmland and the role that plant cultivation plays in such a phytoremediation practice. In this study, the impacts of comfrey (Symphytum officinale L.) cultivation and the stresses of cadmium/zinc (Cd/Zn) on rhizosphere soil microflora were examined. Microbial DNA was collected from soils to evaluate the prevalence of bacteria and fungi communities in rhizosphere soils. High-throughput 16 S rRNA sequencing was used to determine the diversity of the bacterial and fungal communities. The results showed that growing comfrey on polluted soils reduced the levels of Cd and Zn from the vertical profile. Both the comfrey growth and Cd/Zn stresses affected the community of rhizosphere microorganisms (bacteria or fungi). Additionally, the analysis of PCoA and NMDS indicated that the cultivation of comfrey significantly changed the bacterial composition and structure of unpolluted soil. Comfrey cultivation in polluted and unpolluted soils did not result in much variance in the fungi's species composition, but the fungal compositions of the two-type soils were noticeably different. This work provided a better understanding of the impacts of Cd/Zn stresses and comfrey cultivation on rhizosphere microbial community, as well as new insight into phytoremediation of heavy metal-contaminated soils.
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Affiliation(s)
- Di Guo
- School of Petroleum and Environment Engineering, Yan'an University, Yan'an, Shaanxi 716000, China; Yan'an key laboratory of Agricultural Solid Waste Resource Utilization, Yan'an, Shaanxi 716000, China.
| | - Kunkun Tian
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China
| | - Xinyue Peng
- School of Petroleum and Environment Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Shihao Liu
- School of Petroleum and Environment Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
| | - Xixia Xu
- Yan 'an Environmental Monitoring Co. LTD, Yan'an, Shaanxi 716000, China
| | - Wenwen Tian
- School of Petroleum and Environment Engineering, Yan'an University, Yan'an, Shaanxi 716000, China
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14
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Mukarram M, Ahmad B, Choudhary S, Konôpková AS, Kurjak D, Khan MMA, Lux A. Silicon nanoparticles vs trace elements toxicity: Modus operandi and its omics bases. FRONTIERS IN PLANT SCIENCE 2024; 15:1377964. [PMID: 38633451 PMCID: PMC11021597 DOI: 10.3389/fpls.2024.1377964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024]
Abstract
Phytotoxicity of trace elements (commonly misunderstood as 'heavy metals') includes impairment of functional groups of enzymes, photo-assembly, redox homeostasis, and nutrient status in higher plants. Silicon nanoparticles (SiNPs) can ameliorate trace element toxicity. We discuss SiNPs response against several essential (such as Cu, Ni, Mn, Mo, and Zn) and non-essential (including Cd, Pb, Hg, Al, Cr, Sb, Se, and As) trace elements. SiNPs hinder root uptake and transport of trace elements as the first line of defence. SiNPs charge plant antioxidant defence against trace elements-induced oxidative stress. The enrolment of SiNPs in gene expressions was also noticed on many occasions. These genes are associated with several anatomical and physiological phenomena, such as cell wall composition, photosynthesis, and metal uptake and transport. On this note, we dedicate the later sections of this review to support an enhanced understanding of SiNPs influence on the metabolomic, proteomic, and genomic profile of plants under trace elements toxicity.
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Affiliation(s)
- Mohammad Mukarram
- Food and Plant Biology Group, Department of Plant Biology, School of Agriculture, Universidad de la Republica, Montevideo, Uruguay
- Department of Phytology, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
| | - Bilal Ahmad
- Plant Physiology Section, Department of Botany, Government Degree College for Women, Pulwama, Jammu and Kashmir, India
| | - Sadaf Choudhary
- Advance Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, India
| | - Alena Sliacka Konôpková
- Department of Integrated Forest and Landscape Protection, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
- Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia
| | - Daniel Kurjak
- Department of Integrated Forest and Landscape Protection, Faculty of Forestry, Technical University in Zvolen, Zvolen, Slovakia
- Institute of Forest Ecology, Slovak Academy of Sciences, Zvolen, Slovakia
| | - M. Masroor A. Khan
- Advance Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, India
| | - Alexander Lux
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
- Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia
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15
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Tőzsér D, Idehen DO, Osazuwa JD, Sule JE, Ragyák ÁZ, Sajtos Z, Magura T. Early-stage growth and elemental composition patterns of Brassica napus L. in response to Cd-Zn contamination. CHEMOSPHERE 2024; 351:141235. [PMID: 38237783 DOI: 10.1016/j.chemosphere.2024.141235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 01/22/2024]
Abstract
Soil contamination caused by the presence of Cd and the excess amount of Zn is a widespread concern in agricultural areas, posing significant risks to the growth and development of crops. In this paper, the early-stage development and metal (Cd and Zn) accumulation potential of rapeseed (Brassica napus L.) grown under different metal application schemes were assessed by determining radicle and hypocotyl length and the micro- and macro elemental composition of plantlets after 24, 72, and 120 h. The results indicated that the single and co-application of Cd and Zn significantly reduced the radicle and hypocotyl lengths. Accumulation intensity for Cd and Zn was affected by Cd and the combination of Cd and Zn in the solution, respectively. In addition, both metals significantly influenced the tissue Mn and had a minor effect on Cu and Fe concentrations. Both Cd and Zn significantly affected macro element concentrations by decreasing tissue Ca and influencing K and Mg concentrations in a dose- and exposure time-dependent manner. These findings specify the short-term and support the long-term use of rapeseed in remediation processes. However, interactions of metals are crucial in determining the concentration patterns in tissues, which deserves more attention in future investigations.
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Affiliation(s)
- Dávid Tőzsér
- Department of Ecology, University of Debrecen, H-4032, Debrecen, Hungary; Circular Economy Analysis Center, Hungarian University of Agriculture and Life Sciences, H-2100, Gödöllő, Hungary
| | | | | | - John Elias Sule
- Department of Ecology, University of Debrecen, H-4032, Debrecen, Hungary
| | - Ágota Zsófia Ragyák
- Department of Inorganic and Analytical Chemistry, Agilent Atomic Spectroscopy Partner Laboratory, University of Debrecen, H-4032, Debrecen, Hungary
| | - Zsófi Sajtos
- Department of Inorganic and Analytical Chemistry, Agilent Atomic Spectroscopy Partner Laboratory, University of Debrecen, H-4032, Debrecen, Hungary.
| | - Tibor Magura
- Department of Ecology, University of Debrecen, H-4032, Debrecen, Hungary; HUN-REN-UD Anthropocene Ecology Research Group, University of Debrecen, H-4032, Debrecen, Hungary
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16
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Wu P, Wang Z, Adusei-Fosu K, Wang Y, Wang H, Li X. Integrative chemical, physiological, and metabolomics analyses reveal nanospecific phytotoxicity of metal nanoparticles. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 354:120338. [PMID: 38401494 DOI: 10.1016/j.jenvman.2024.120338] [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: 10/23/2023] [Revised: 01/18/2024] [Accepted: 02/08/2024] [Indexed: 02/26/2024]
Abstract
The increasing application of metal nanoparticles (NPs) via agrochemicals and sewage sludge results in non-negligible phytotoxicological risks. Herein, the potential phytotoxicity of ZnO and CuO NPs on wheat was determined using integrative chemical, physiological, and metabolomics analyses, in comparison to Zn2+ and Cu2+. It was found that ZnO or CuO NPs had a stronger inhibitory effect on wheat growth than Zn2+ or Cu2+. After exposure to ZnO or CuO NPs, wheat seedlings accumulated significantly higher levels of Zn or Cu than the corresponding Zn2+ or Cu2+ treatments, indicating the active uptake of NPs via wheat root. TEM analysis further confirmed the intake of NPs. Moreover, ZnO or CuO NPs exposure altered micronutrients (Fe, Mn, Cu, and Zn) accumulation in the tissues and decreased the activities of antioxidant enzymes. The metabolomics analysis identified 312, 357, 145, and 188 significantly changed metabolites (SCMs) in wheat root exposed to ZnO NPs, CuO NPs, Zn2+, and Cu2+, respectively. Most SCMs were nano-specific to ZnO (80%) and CuO NPs (58%), suggesting greater metabolic reprogramming by NPs than metal ions. Overall, nanospecific toxicity dominated the phytotoxicity of ZnO and CuO NPs, and our results provide a molecular perspective on the phytotoxicity of metal oxide NPs.
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Affiliation(s)
- Ping Wu
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China.
| | - Zeyu Wang
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Kwasi Adusei-Fosu
- Resilient Agriculture, AgResearch Ltd., Grasslands Research Centre, Palmerston North, New Zealand
| | - Yujun Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, Jiangsu, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hailong Wang
- School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, 528000, China; Guangdong Provincial Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, 510650, China
| | - Xiaofang Li
- Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang, 050021, China.
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17
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Hafidi Y, El Hatka H, Schmitz D, Krauss M, Pettrak J, Biel M, Ittobane N. Sustainable Soil Additives for Water and Micronutrient Supply: Swelling and Chelating Properties of Polyaspartic Acid Hydrogels Utilizing Newly Developed Crosslinkers. Gels 2024; 10:170. [PMID: 38534588 DOI: 10.3390/gels10030170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/16/2024] [Accepted: 02/23/2024] [Indexed: 03/28/2024] Open
Abstract
Drought and water shortage are serious problems in many arid and semi-arid regions. This problem is getting worse and even continues in temperate climatic regions due to climate change. To address this problem, the use of biodegradable hydrogels is increasingly important for the application as water-retaining additives in soil. Furthermore, efficient (micro-)nutrient supply can be provided by the use of tailored hydrogels. Biodegradable polyaspartic acid (PASP) hydrogels with different available (1,6-hexamethylene diamine (HMD) and L-lysine (LYS)) and newly developed crosslinkers based on diesters of glycine (GLY) and (di-)ethylene glycol (DEG and EG, respectively) were synthesized and characterized using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM) and regarding their swelling properties (kinetic, absorbency under load (AUL)) as well as biodegradability of PASP hydrogel. Copper (II) and zinc (II), respectively, were loaded as micronutrients in two different approaches: in situ with crosslinking and subsequent loading of prepared hydrogels. The results showed successful syntheses of di-glycine-ester-based crosslinkers. Hydrogels with good water-absorbing properties were formed. Moreover, the developed crosslinking agents in combination with the specific reaction conditions resulted in higher water absorbency with increased crosslinker content used in synthesis (10% vs. 20%). The prepared hydrogels are candidates for water-storing soil additives due to the biodegradability of PASP, which is shown in an exemple. The incorporation of Cu(II) and Zn(II) ions can provide these micronutrients for plant growth.
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Affiliation(s)
- Youssef Hafidi
- Molecular Chemistry and Organic Materials Team (CMMO), Faculty of Science, Moulay Ismail University, Meknes 50050, Morocco
| | - Hicham El Hatka
- Molecular Chemistry and Organic Materials Team (CMMO), Faculty of Science, Moulay Ismail University, Meknes 50050, Morocco
| | - Dominik Schmitz
- IAP-Institute for Applied Polymer Chemistry, University of Applied Sciences Aachen, 52428 Jülich, Germany
| | - Manuel Krauss
- Research Institute of Water Management and Climate Future at RWTH Aachen University e.V., 52072 Aachen, Germany
| | - Jürgen Pettrak
- IAP-Institute for Applied Polymer Chemistry, University of Applied Sciences Aachen, 52428 Jülich, Germany
| | - Markus Biel
- IAP-Institute for Applied Polymer Chemistry, University of Applied Sciences Aachen, 52428 Jülich, Germany
| | - Najim Ittobane
- Molecular Chemistry and Organic Materials Team (CMMO), Faculty of Science, Moulay Ismail University, Meknes 50050, Morocco
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18
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Thorat YE, Dutta TK, Jain PK, Subramaniam K, Sirohi A. A nematode-inducible promoter can effectively drives RNAi construct to confer Meloidogyne incognita resistance in tomato. PLANT CELL REPORTS 2023; 43:3. [PMID: 38117317 DOI: 10.1007/s00299-023-03114-6] [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: 09/18/2023] [Accepted: 10/30/2023] [Indexed: 12/21/2023]
Abstract
KEY MESSAGE Heterologous expression of a nematode-responsive promoter in tomato successfully driven the RNAi constructs to impart root-knot nematode resistance. The root-knot nematode Meloidogyne incognita seriously afflicts the global productivity of tomatoes. Nematode management options are extremely reliant on chemical methods, however, only a handful of nematicides are commercially available. Additionally, nematodes have developed resistance-breaking phenotypes against the commercially available Mi gene-expressing tomatoes. Nematode resistance in crop plants can be enhanced using the bio-safe RNAi technology, in which plants are genetically modified to express nematode gene-specific dsRNA/siRNA molecules. However, the majority of the RNAi crops conferring nematode tolerance have used constitutive promoters, which have many limitations. In the present study, using promoter-GUS fusion, we functionally validated two nematode-inducible root-specific promoters (pAt1g74770 and pAt2g18140, identified from Arabidopsis thaliana) in the Solanum lycopersicum-M. incognita pathosystem. pAt2g18140 was found to be nematode-responsive during 10-21 days post-inoculation (dpi) and became non-responsive during the late infection stage (28 dpi). In contrast, pAt1g74770 remained nematode-responsive for a longer duration (10-28 dpi). Next, a number of transgenic lines were developed that expressed RNAi constructs (independently targeting the M. incognita integrase and splicing factor genes) driven by the pAt1g74770 promoter. M. incognita parasitic success (measured by multiplication factor ratio) in pAt1g74770:integrase and pAt1g74770:splicing factor RNAi lines were significantly reduced by 60.83-74.93% and 69.34-75.31%, respectively, compared to the control. These data were comparable with the RNAi lines having CaMV35S as the promoter. Further, a long-term RNAi effect was evident, because females extracted from transgenic lines were of deformed shape with depleted transcripts of integrase and splicing factor genes. We conclude that pAt1g74770 can be an attractive alternative to drive localized expression of RNAi constructs rather than using a constitutive promoter. The pAt1g74770-driven gene silencing system can be expanded into different plant-nematode interaction models.
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Affiliation(s)
- Yogesh E Thorat
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
- Biological Control Centre, ICAR-Indian Institute of Sugarcane Research, Ahmednagar, Maharashtra, 413712, India
| | - Tushar K Dutta
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - Pradeep K Jain
- ICAR-National Institute for Plant Biotechnology, New Delhi, 110012, India
| | | | - Anil Sirohi
- Division of Nematology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
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19
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Tamrakar A, Kumar P, Garg N, Luis SV, Pandey MD. Intracellular Zn(II) induced turn-on fluorescence of an L-phenylalanine-derived pseudopeptide. Org Biomol Chem 2023; 21:8823-8828. [PMID: 37906437 DOI: 10.1039/d3ob01337e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023]
Abstract
A C2 symmetric L-phenylalanine-derived pseudopeptide has been synthesized for selective and sensitive recognition of Zn(II) ions in aqueous-organic media. The pseudopeptidic probes exhibit intracellular Zn(II) ion-sensing capabilities as demonstrated via live-cell fluorescence studies on RAW264.7 cells. Hence, we present a bioinspired pseudopeptide for potential biological applications involving intracellular Zn(II) ion detection.
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Affiliation(s)
- Arpna Tamrakar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Praveen Kumar
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Neha Garg
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221005, India
| | - Santiago V Luis
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Av. SosBaynat, s/n, E-12071 Castellón, Spain
| | - Mrituanjay D Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
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20
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Vinceković M, Jurić S, Vlahoviček-Kahlina K, Martinko K, Šegota S, Marijan M, Krčelić A, Svečnjak L, Majdak M, Nemet I, Rončević S, Rezić I. Novel Zinc/Silver Ions-Loaded Alginate/Chitosan Microparticles Antifungal Activity against Botrytis cinerea. Polymers (Basel) 2023; 15:4359. [PMID: 38006083 PMCID: PMC10674643 DOI: 10.3390/polym15224359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Addressing the growing need for environmentally friendly fungicides in agriculture, this study explored the potential of biopolymer microparticles loaded with metal ions as a novel approach to combat fungal pathogens. Novel alginate microspheres and chitosan/alginate microcapsules loaded with zinc or with zinc and silver ions were prepared and characterized (microparticle size, morphology, topography, encapsulation efficiency, loading capacity, and swelling behavior). Investigation of molecular interactions in microparticles using FTIR-ATR spectroscopy exhibited complex interactions between all constituents. Fitting to the simple Korsmeyer-Peppas empirical model revealed the rate-controlling mechanism of metal ions release from microparticles is Fickian diffusion. Lower values of the release constant k imply a slower release rate of Zn2+ or Ag+ ions from microcapsules compared to that of microspheres. The antimicrobial potential of the new formulations against the fungus Botrytis cinerea was evaluated. When subjected to tests against the fungus, microspheres exhibited superior antifungal activity especially those loaded with both zinc and silver ions, reducing fungal growth up to 98.9% and altering the hyphal structures. Due to the slower release of metal ions, the microcapsule formulations seem suitable for plant protection throughout the growing season. The results showed the potential of these novel microparticles as powerful fungicides in agriculture.
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Affiliation(s)
- Marko Vinceković
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Slaven Jurić
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Kristina Vlahoviček-Kahlina
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Katarina Martinko
- Department of Plant Pathology, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia;
| | - Suzana Šegota
- Laboratory for Biocolloids and Surface Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia;
| | - Marijan Marijan
- Department of Quality Control, The Institute of Immunology, Rockefellerova 2, 10000 Zagreb, Croatia;
| | - Ana Krčelić
- Department of Chemistry, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia; (S.J.); (K.V.-K.); (A.K.)
| | - Lidija Svečnjak
- Department of Fisheries, Apiculture, Wildlife Management and Special Zoology, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia;
| | - Mislav Majdak
- Department of Applied Chemistry, University of Textile Technology, Prilaz Baruna Filipovića 28a, 10000 Zagreb, Croatia;
| | - Ivan Nemet
- Department of Analytical Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia; (I.N.); (S.R.)
| | - Sanda Rončević
- Department of Analytical Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia; (I.N.); (S.R.)
| | - Iva Rezić
- Department of Applied Chemistry, University of Textile Technology, Prilaz Baruna Filipovića 28a, 10000 Zagreb, Croatia;
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21
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Yu L, Xu X, Chua WZ, Feng H, Ser Z, Shao K, Shi J, Wang Y, Li Z, Sobota RM, Sham LT, Luo M. Structural basis of peptide secretion for Quorum sensing by ComA. Nat Commun 2023; 14:7178. [PMID: 37935699 PMCID: PMC10630487 DOI: 10.1038/s41467-023-42852-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 10/23/2023] [Indexed: 11/09/2023] Open
Abstract
Quorum sensing (QS) is a crucial regulatory mechanism controlling bacterial signalling and holds promise for novel therapies against antimicrobial resistance. In Gram-positive bacteria, such as Streptococcus pneumoniae, ComA is a conserved efflux pump responsible for the maturation and secretion of peptide signals, including the competence-stimulating peptide (CSP), yet its structure and function remain unclear. Here, we functionally characterize ComA as an ABC transporter with high ATP affinity and determined its cryo-EM structures in the presence or absence of CSP or nucleotides. Our findings reveal a network of strong electrostatic interactions unique to ComA at the intracellular gate, a putative binding pocket for two CSP molecules, and negatively charged residues facilitating CSP translocation. Mutations of these residues affect ComA's peptidase activity in-vitro and prevent CSP export in-vivo. We demonstrate that ATP-Mg2+ triggers the outward-facing conformation of ComA for CSP release, rather than ATP alone. Our study provides molecular insights into the QS signal peptide secretion, highlighting potential targets for QS-targeting drugs.
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Affiliation(s)
- Lin Yu
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, 117543, Singapore
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225001, Jiangsu, China
| | - Xin Xu
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, 117543, Singapore
| | - Wan-Zhen Chua
- Infectious Diseases Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117545, Singapore
| | - Hao Feng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, 117543, Singapore
| | - Zheng Ser
- Functional Proteomics Laboratory, SingMass National Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, 138673, Singapore
| | - Kai Shao
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, 117543, Singapore
| | - Jian Shi
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, 117543, Singapore
- Center for Bioimaging Sciences, Department of Biological Sciences, National University of Singapore, Singapore, 117543, Singapore
| | - Yumei Wang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing, 100190, China
| | - Zongli Li
- Harvard Cryo-EM Center for Structural Biology, Harvard Medical School, Boston, MA, 02115, USA
| | - Radoslaw M Sobota
- Functional Proteomics Laboratory, SingMass National Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, 138673, Singapore
| | - Lok-To Sham
- Infectious Diseases Translational Research Programme and Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117545, Singapore.
| | - Min Luo
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, 117543, Singapore.
- Center for Bioimaging Sciences, Department of Biological Sciences, National University of Singapore, Singapore, 117543, Singapore.
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22
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Daniel AI, Keyster M, Klein A. Biogenic zinc oxide nanoparticles: A viable agricultural tool to control plant pathogenic fungi and its potential effects on soil and plants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 897:165483. [PMID: 37442458 DOI: 10.1016/j.scitotenv.2023.165483] [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: 03/02/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023]
Abstract
Fungal and bacterial pathogens represent some of the greatest challenges facing crop production globally and account for about 20-40 % crop losses annually. This review highlights the use of ZnO NPs as antimicrobial agents and explores their mechanisms of actions against disease causing plant fungal pathogens. The behavior of ZnO NPs in soil and their interactions with the soil components were also highlighted. The review discusses the potential effects of ZnO NPs on plants and their mechanisms of action on plants and how these mechanisms are related to their physicochemical properties. In addition, the reduction of ZnO NPs toxicity through surface modification and coating with silica is also addressed. Soil properties play a significant role in the dispersal, aggregation, stability, bioavailability, and transport of ZnO NPs and their release into the soil. The transport of ZnO NPs into the soil might influence soil components and, as a result, plant physiology. The harmful effects of ZnO NPs on plants and fungi are caused by a variety of processes, the most important of which is the formation of reactive oxygen species, lysosomal instability, DNA damage, and the reduction of oxidative stress by direct penetration/liberation of Zn2+ ions in plant/fungal cells. Based on these highlighted areas, this review concludes that ZnO NPs exhibit its antifungal activity via generations of reactive oxygen species, coupled with the inhibition of various metabolic pathways. Despite the numerous advantages of ZnO NPs, there is need to regulate its uses to minimize the harmful effects that may arise from its applications in the soil and plants.
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Affiliation(s)
- Augustine Innalegwu Daniel
- Department of Biotechnology, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa; Department of Biochemistry, Federal University of Technology, P.M.B 65, Minna, Niger State, Nigeria.
| | - Marshall Keyster
- Department of Biotechnology, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa.
| | - Ashwil Klein
- Department of Biotechnology, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa.
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23
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Pavlicevic M, Pagano L, Villani M, Zappettini A, Paesano L, Bonas U, Marmiroli N, Marmiroli M. Comparison of effect of CdS QD and ZnS QD and their corresponding salts on growth, chlorophyll content and antioxidative capacity of tomato. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2023; 26:850-861. [PMID: 37886884 DOI: 10.1080/15226514.2023.2270692] [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: 10/28/2023]
Abstract
When applied in the same concentration to tomato plants, cadmium sulfate (CdSO4) and zinc sulfate (ZnSO4) were transported from soil to roots and from roots to shoots more readily than their nano counterparts: cadmium sulfide quantum dots (CdS QD) and zinc sulfide quantum dots (ZnS QD). Compared to the CdS QD, he higher rate of transport of CdSO4 resulted in a greater negative effect on growth, chlorophyll content, antioxidant properties, lipid peroxidation and activation of antioxidant defence systems. Although ZnSO4 was transported more rapidly than ZnS QD, the overall effect of Zn addition was positive (increase in total plant mass, stem length, antioxidant content and decrease in lipid peroxidation). However, these effects were more pronounced in the case of ZnS QD, suggesting that the mechanisms underpinning the activity of ZnS QD and ZnSO4 were different. Thus, the risk of phytotoxicity and food chain transfer of the two elements depended on their form (salt or nanoform), and consequently their effects on plants' growth and physiology were different.
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Affiliation(s)
- Milica Pavlicevic
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Italy
| | - Luca Pagano
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Italy
| | | | | | - Laura Paesano
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Italy
| | - Urbana Bonas
- National Interuniversity Consortium for Environmental Sciences (CINSA), Parma, Italy
| | - Nelson Marmiroli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Italy
- National Interuniversity Consortium for Environmental Sciences (CINSA), Parma, Italy
- Interdepartmental Center SITEIA.PARMA, University of Parma, Parma, Italy
| | - Marta Marmiroli
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Italy
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Bhadra T, Mahapatra CK, Hosenuzzaman M, Gupta DR, Hashem A, Avila-Quezada GD, Abd_Allah EF, Hoque MA, Paul SK. Zinc and Boron Soil Applications Affect Athelia rolfsii Stress Response in Sugar Beet ( Beta vulgaris L.) Plants. PLANTS (BASEL, SWITZERLAND) 2023; 12:3509. [PMID: 37836249 PMCID: PMC10575046 DOI: 10.3390/plants12193509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/30/2023] [Accepted: 10/01/2023] [Indexed: 10/15/2023]
Abstract
Generation of reactive oxygen species (ROS) constitutes an initial defense approach in plants during pathogen infection. Here, the effects of the two micronutrients, namely, zinc (Zn) and boron (B), on enzymatic and non-enzymatic antioxidant properties, as well as malondialdehyde (MDA) contents in leaves and roots challenged with Athelia rolfsii, which cause root rot disease, were investigated. The findings revealed that Zn and B application to the potting soil alleviated the adverse effect of A. rolfsii on sugar beet plants and increased the chlorophyll content in leaves. The increased enzymatic antioxidant activities such as catalase (CAT), peroxidase (POX), and ascorbate peroxidase (APX), and non-enzymatic antioxidants such as ascorbic acid (AsA) were observed in Zn applied plants compared to both uninoculated and inoculated control plants. A significant rise in CAT activity was noted in both leaves (335.1%) and roots (264.82%) due to the Zn2B1.5 + Ar treatment, in comparison to the inoculated control plants. On the other hand, B did not enhance the activity of any one of them except AsA. Meanwhile, A. rolfsii infection led to the increased accumulation of MDA content both in the leaves and roots of sugar beet plants. Interestingly, reduced MDA content was recorded in leaves and roots treated with both Zn and B. The results of this study demonstrate that both Zn and B played a vital role in A. rofsii tolerance in sugar beet, while Zn enhances antioxidant enzyme activities, B appeared to have a less pronounced effect on modulating the antioxidant system to alleviate the adverse effect of A. rolfsii.
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Affiliation(s)
- Tamalika Bhadra
- Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (T.B.); (C.K.M.)
| | - Chandan Kumar Mahapatra
- Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (T.B.); (C.K.M.)
| | - Md. Hosenuzzaman
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.H.); (M.A.H.)
| | - Dipali Rani Gupta
- Institute of Biotechnology and Genetic Engineering, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh; (D.R.G.)
| | - Abeer Hashem
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (A.H.)
| | | | - Elsayed Fathi Abd_Allah
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia; (E.F.A.)
| | - Md. Anamul Hoque
- Department of Soil Science, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (M.H.); (M.A.H.)
| | - Swapan Kumar Paul
- Department of Agronomy, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh; (T.B.); (C.K.M.)
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25
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Stałanowska K, Szablińska-Piernik J, Okorski A, Lahuta LB. Zinc Oxide Nanoparticles Affect Early Seedlings' Growth and Polar Metabolite Profiles of Pea ( Pisum sativum L.) and Wheat ( Triticum aestivum L.). Int J Mol Sci 2023; 24:14992. [PMID: 37834440 PMCID: PMC10573449 DOI: 10.3390/ijms241914992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023] Open
Abstract
The growing interest in the use of zinc oxide nanoparticles (ZnO NPs) in agriculture creates a risk of soil contamination with ZnO NPs, which can lead to phytotoxic effects on germinating seeds and seedlings. In the present study, the susceptibility of germinating seeds/seedlings of pea and wheat to ZnO NPs of various sizes (≤50 and ≤100 nm) applied at concentrations in the range of 100-1000 mg/L was compared. Changes in metabolic profiles in seedlings were analyzed by GC and GC-MS methods. The size-dependent harmful effect of ZnO NPs on the seedling's growth was revealed. The more toxic ZnO NPs (50 nm) at the lowest concentration (100 mg/L) caused a 2-fold decrease in the length of the wheat roots. In peas, the root elongation was slowed down by 20-30% only at 1000 mg/L ZnO NPs. The metabolic response to ZnO NPs, common for all tested cultivars of pea and wheat, was a significant increase in sucrose (in roots and shoots) and GABA (in roots). In pea seedlings, an increased content of metabolites involved in the aspartate-glutamate pathway and the TCA cycle (citrate, malate) was found, while in wheat, the content of total amino acids (in all tissues) and malate (in roots) decreased. Moreover, a decrease in products of starch hydrolysis (maltose and glucose) in wheat endosperm indicates the disturbances in starch mobilization.
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Affiliation(s)
- Karolina Stałanowska
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland; (K.S.); (J.S.-P.)
| | - Joanna Szablińska-Piernik
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland; (K.S.); (J.S.-P.)
| | - Adam Okorski
- Department of Entomology, Phytopathology and Molecular Diagnostics, University of Warmia and Mazury in Olsztyn, Pl. Łódzki 5, 10-727 Olsztyn, Poland
| | - Lesław B. Lahuta
- Department of Plant Physiology, Genetics and Biotechnology, University of Warmia and Mazury in Olsztyn, Oczapowskiego 1A, 10-719 Olsztyn, Poland; (K.S.); (J.S.-P.)
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26
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Mosna K, Jurczak K, Krężel A. Differentiated Zn(II) binding affinities in animal, plant, and bacterial metallothioneins define their zinc buffering capacity at physiological pZn. Metallomics 2023; 15:mfad061. [PMID: 37804185 PMCID: PMC10612145 DOI: 10.1093/mtomcs/mfad061] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 10/05/2023] [Indexed: 10/09/2023]
Abstract
Metallothioneins (MTs) are small, Cys-rich proteins present in various but not all organisms, from bacteria to humans. They participate in zinc and copper metabolism, toxic metals detoxification, and protection against reactive species. Structurally, they contain one or multiple domains, capable of binding a variable number of metal ions. For experimental convenience, biochemical characterization of MTs is mainly performed on Cd(II)-loaded proteins, frequently omitting or limiting Zn(II) binding features and related functions. Here, by choosing 10 MTs with relatively well-characterized structures from animals, plants, and bacteria, we focused on poorly investigated Zn(II)-to-protein affinities, stability-structure relations, and the speciation of individual complexes. For that purpose, MTs were characterized in terms of stoichiometry, pH-dependent Zn(II) binding, and competition with chromogenic and fluorescent probes. To shed more light on protein folding and its relation with Zn(II) affinity, reactivity of variously Zn(II)-loaded MTs was studied by (5,5'-dithiobis(2-nitrobenzoic acid) oxidation in the presence of mild chelators. The results show that animal and plant MTs, despite their architectural differences, demonstrate the same affinities to Zn(II), varying from nano- to low picomolar range. Bacterial MTs bind Zn(II) more tightly but, importantly, with different affinities from low picomolar to low femtomolar range. The presence of weak, moderate, and tight zinc sites is related to the folding mechanisms and internal electrostatic interactions. Differentiated affinities of all MTs define their zinc buffering capacity required for Zn(II) donation and acceptance at various free Zn(II) concentrations (pZn levels). The data demonstrate critical roles of individual Zn(II)-depleted MT species in zinc buffering processes.
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Affiliation(s)
- Karolina Mosna
- Department of Chemical Biology, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland
| | - Kinga Jurczak
- Department of Chemical Biology, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland
| | - Artur Krężel
- Department of Chemical Biology, Faculty of Biotechnology, University of Wrocław, Joliot-Curie 14a, 50-383 Wrocław, Poland
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Li R, Tang F, Che Y, Fernie AR, Zhou Q, Ding Z, Yao Y, Liu J, Wang Y, Hu X, Guo J. MeGLYI-13, a Glyoxalase I Gene in Cassava, Enhances the Tolerance of Yeast and Arabidopsis to Zinc and Copper Stresses. PLANTS (BASEL, SWITZERLAND) 2023; 12:3375. [PMID: 37836115 PMCID: PMC10574700 DOI: 10.3390/plants12193375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 09/19/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023]
Abstract
Although zinc and copper are the two essential nutrients necessary for plant growth, their excessive accumulation in soil not only causes environmental pollution but also seriously threatens human health and inhibits plant growth. The breeding of plants with novel zinc or copper toxicity tolerance capacities represents one strategy to address this problem. Glyoxalase I (GLYI) family genes have previously been suggested to be involved in the resistance to a wide range of abiotic stresses, including those invoked by heavy metals. Here, a MeGLYI-13 gene cloned from a cassava SC8 cultivar was characterized with regard to its potential ability in resistance to zinc or copper stresses. Sequence alignment indicated that MeGLYI-13 exhibits sequence differences between genotypes. Transient expression analysis revealed the nuclear localization of MeGLYI-13. A nuclear localization signal (NLS) was found in its C-terminal region. There are 12 Zn2+ binding sites and 14 Cu2+ binding sites predicted by the MIB tool, of which six binding sites were shared by Zn2+ and Cu2+. The overexpression of MeGLYI-13 enhanced both the zinc and copper toxicity tolerances of transformed yeast cells and Arabidopsis seedlings. Taken together, our study shows the ability of the MeGLYI-13 gene to resist zinc and copper toxicity, which provides genetic resources for the future breeding of plants resistant to zinc and copper and potentially other heavy metals.
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Affiliation(s)
- Ruimei Li
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (R.L.); (F.T.); (Y.C.); (Q.Z.); (Z.D.); (Y.Y.); (J.L.); (Y.W.)
- Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
- College of Tropical Crops, Hainan University, Haikou 570228, China
- Root Biology and Symbiosis, Max-Planck-Institute of Molecular Plant Physiology, Am Muhlenberg 1, 14476 Potsdam-Golm, Germany;
| | - Fenlian Tang
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (R.L.); (F.T.); (Y.C.); (Q.Z.); (Z.D.); (Y.Y.); (J.L.); (Y.W.)
- College of Tropical Crops, Hainan University, Haikou 570228, China
| | - Yannian Che
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (R.L.); (F.T.); (Y.C.); (Q.Z.); (Z.D.); (Y.Y.); (J.L.); (Y.W.)
- College of Tropical Crops, Hainan University, Haikou 570228, China
| | - Alisdair R. Fernie
- Root Biology and Symbiosis, Max-Planck-Institute of Molecular Plant Physiology, Am Muhlenberg 1, 14476 Potsdam-Golm, Germany;
| | - Qin Zhou
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (R.L.); (F.T.); (Y.C.); (Q.Z.); (Z.D.); (Y.Y.); (J.L.); (Y.W.)
- College of Tropical Crops, Hainan University, Haikou 570228, China
| | - Zhongping Ding
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (R.L.); (F.T.); (Y.C.); (Q.Z.); (Z.D.); (Y.Y.); (J.L.); (Y.W.)
- College of Tropical Crops, Hainan University, Haikou 570228, China
| | - Yuan Yao
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (R.L.); (F.T.); (Y.C.); (Q.Z.); (Z.D.); (Y.Y.); (J.L.); (Y.W.)
- Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
| | - Jiao Liu
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (R.L.); (F.T.); (Y.C.); (Q.Z.); (Z.D.); (Y.Y.); (J.L.); (Y.W.)
- Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
| | - Yajie Wang
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (R.L.); (F.T.); (Y.C.); (Q.Z.); (Z.D.); (Y.Y.); (J.L.); (Y.W.)
- Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
| | - Xinwen Hu
- College of Tropical Crops, Hainan University, Haikou 570228, China
| | - Jianchun Guo
- Key Laboratory of Biology and Genetic Resources of Tropical Crops, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China; (R.L.); (F.T.); (Y.C.); (Q.Z.); (Z.D.); (Y.Y.); (J.L.); (Y.W.)
- Key Laboratory for Biology and Genetic Resources of Tropical Crops of Hainan Province, Hainan Institute for Tropical Agricultural Resources, Haikou 571101, China
- College of Tropical Crops, Hainan University, Haikou 570228, China
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28
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Saavedra Núñez G, González-Villanueva E, Ramos P. Floral Development on Vitis vinifera Is Associated with MADS-Box Transcription Factors through the Transcriptional Regulation of VviZIP3. PLANTS (BASEL, SWITZERLAND) 2023; 12:3322. [PMID: 37765487 PMCID: PMC10535425 DOI: 10.3390/plants12183322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/11/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023]
Abstract
Several grapevine (Vitis vinifera L.) cultivars show a tendency to develop parthenocarpic seedless grapes, affecting fruit yield and quality. This reproductive disorder originates in defective ovule fertilization due to a failure in pollen tube growth. Zinc (Zn) is a crucial trace element, playing a vital role in various physiological and metabolic processes. It is particularly essential for the healthy growth of flowers and fruits. Insufficient zinc has been suggested as a potential reason for issues in this development process. This microelement is taken up through a mechanism that involves transporters, including the ZRT-IRT-like protein (ZIP) gene family, associated with the influx of Zn into the cell. In grapevines, 20 genes for ZIP-type transporters have been described. In this study, we analyzed the expression pattern of VviZIP3 during flower development and employ transgenic methods to assess its transcriptional regulation. Furthermore, through computational examination of the promoter region, we identified two CArG boxes, recognized as responsive elements to MADS transcription factors. These factors play a key role in shaping various components of a flower, such as pollen. Our investigation of the VviZIP3 promoter confirms the functionality of these CArG boxes. Overall, our results suggest that the increased expression of VviZIP3 during flowering is likely under the influence of MADS transcription factors.
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Affiliation(s)
- Germán Saavedra Núñez
- Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460787, Chile; (G.S.N.); (E.G.-V.)
| | | | - Patricio Ramos
- Instituto de Ciencias Biológicas, Universidad de Talca, Talca 3460787, Chile; (G.S.N.); (E.G.-V.)
- Vicerrectoría de Investigación y Postgrado, Universidad Católica del Maule, Talca 3480112, Chile
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Nakkaew A, Masjon T, Voravuthikunchai SP. Genomic and Transcriptional Profiling Analysis and Insights into Rhodomyrtone Yield in Rhodomyrtus tomentosa (Aiton) Hassk. PLANTS (BASEL, SWITZERLAND) 2023; 12:3156. [PMID: 37687402 PMCID: PMC10490526 DOI: 10.3390/plants12173156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/22/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
Rhodomyrtus tomentosa is a source of a novel antibiotic, rhodomyrtone. Because of the increasing industrial demand for this compound, germplasm with a high rhodomyrtone content is the key to sustainable future cultivation. In this study, rhodomyrtone genotypes were verified using the plastid genomic region marker matK and nuclear ribosomal internal transcribed spacer ITS. These two DNA barcodes proved to be useful tools for identifying different rhodomyrtone contents via the SNP haplotypes C569T and A561G, respectively. The results were correlated with rhodomyrtone content determined via HPLC. Subsequently, R. tomentosa samples with high- and low-rhodomyrtone genotypes were collected for de novo transcriptome and gene expression analyses. A total of 83,402 unigenes were classified into 25 KOG classifications, and 74,102 annotated unigenes were obtained. Analysis of differential gene expression between samples or groups using DESeq2 revealed highly expressed levels related to rhodomyrtone content in two genotypes. semiquantitative RT-PCR further revealed that the high rhodomyrtone content in these two genotypes correlated with expression of zinc transporter protein (RtZnT). In addition, we found that expression of RtZnT resulted in increased sensitivity of R. tomentosa under ZnSO4 stress. The findings provide useful information for selection of cultivation sites to achieve high rhodomyrtone yields in R. tomentosa.
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Affiliation(s)
- Alisa Nakkaew
- Center for Genomic and Bioinformatics Research, Faculty of Science, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand;
- Division of Biological Science, Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
| | - Thipphanet Masjon
- Center for Genomic and Bioinformatics Research, Faculty of Science, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand;
- Division of Biological Science, Molecular Biotechnology and Bioinformatics, Faculty of Science, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand
| | - Supayang Piyawan Voravuthikunchai
- Center of Antimicrobial Biomaterial Innovation-Southeast Asia, Faculty of Science, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand;
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Shams AHM, Helaly AA, Algeblawi AM, Awad-Allah EFA. Efficacy of Seed-Biopriming with Trichoderma spp. and Foliar Spraying of ZnO-Nanoparticles Induce Cherry Tomato Growth and Resistance to Fusarium Wilt Disease. PLANTS (BASEL, SWITZERLAND) 2023; 12:3117. [PMID: 37687362 PMCID: PMC10489679 DOI: 10.3390/plants12173117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 08/19/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023]
Abstract
Several microbes that cause plant diseases drastically lower the production of agriculture and jeopardize the safety of the world's food supply. As a result, sustainable agriculture requires disease management tactics based on modern, eco-friendly techniques as alternatives to various agrochemicals. The current study aimed to assess the antifungal activity of ZnO-nanoparticles against Fusarium solani in-vitro, and the ability of two antagonistic Trichoderma isolates, Trichoderma viride and Trichoderma harzianum, to produce antifungal secondary metabolites and identify them using gas chromatography-mass spectrometry, and to evaluate the combined effects of foliar spray of ZnO-nanoparticles and bioprimed seeds of cherry tomato (Solanum lycopersicum L.) with two antagonistic Trichoderma isolates against Fusarium wilt disease caused by Fusarium solani in greenhouse conditions. The results revealed that, in-vitro, the highest concentration of ZnO nanoparticles (3000 ppm) resulted in the greatest decrease in Fusarium solani mycelial growth (90.91% inhibition). The scanning electron microscopy demonstrated the evident distortion in Fusarium solani growing mycelia treated with ZnO-nanoparticles, which might be the source of growth suppression. Additionally, twenty-eight bioactive chemical compounds were isolated and identified from Trichoderma spp. ethyl acetate crude extracts using gas chromatography-mass spectrometry. In a greenhouse experiment, the combination of bioprimed cherry tomato plants with Trichoderma harzianum and foliar spraying of ZnO-nanoparticles at 3000 ppm was the most effective interaction treatment for reducing disease severity index (23.4%) and improving the vegetative growth parameters, micronutrient contents (Mn, Zn, and Fe in leaves), and chlorophyll content (SPAD unit), as well as stimulating phenylalanine ammonia-lyase activity of cherry tomato leaves at 75 days after sowing. In conclusion, the antifungal potential of seed-biopriming with antagonistic Trichoderma isolates and the foliar spraying of ZnO-nanoparticles can boost cherry tomato growth and confer resistance to Fusarium wilt caused by Fusarium solani.
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Affiliation(s)
- Amany H. M. Shams
- Plant Pathology Department, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt;
| | - Amira A. Helaly
- Vegetable Crops Department, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt;
| | - Abeer M. Algeblawi
- Plant Protection Department, Faculty of Agriculture, University of Tripoli, Tripoli 13479, Libya;
| | - Eman F. A. Awad-Allah
- Soil and Water Sciences Department, Faculty of Agriculture, Alexandria University, Alexandria 21545, Egypt
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31
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Bidast S, Golchin A, Mohseni A. The beneficial effects of bare and CMC-supported α-FeOOH, Fe 3O 4, and α-Fe 2O 3 nanoparticles on growth, nutrient content, and essential oil of summer savory (Satureja hortensis L.) under Cd, Pb and Zn stresses. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-28008-8. [PMID: 37266774 DOI: 10.1007/s11356-023-28008-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/25/2023] [Indexed: 06/03/2023]
Abstract
This research studies the impacts of iron oxide nanoparticles (FeONPs) on alleviating the toxic effects of cadmium (Cd), lead (Pb), and zinc (Zn) on summer savory (Satureja hortensis L.). Different types of soil additives, including bare and carboxymethylcellulose (CMC)-supported hematite (α-Fe2O3), goethite (α-FeOOH), and magnetite (Fe3O4), were applied at three rates (0, 0.25, and 0.5% w/w) to a Cd, Pb, and Zn-contaminated soil sample. The experimental results showed that the application of FeONPs increased plant height, dry weights of shoot and root, and yield and content of essential oil. Bare and CMC-supported FeONPs increased the content of K, P, and Fe in the aerial parts of summer savory. However, these soil additives reduced the contents of Cd, Pb, and Zn in plant tissues. CMC-supported FeONPs proved to be more efficient additives in diminishing the toxic effects of Cd, Pb, and Zn in summer savory compared to their bare forms. Bare and CMC-supported goethite NPs were able to restrict the uptake of Cd, Pb, and Zn by summer savory roots in the metal-contaminated soil. The application of CMC-supported goethite at an application dose of 0.5% (w/w) increased shoot dry weight, shoot concentrations of K, P, and Fe, and yield of essential oil by about 62.6, 76.6, 77.1, 210, and 230%, respectively. Conversely, they reduced shoot concentrations of Cd, Pb, and Zn by about 64.6, 68.7, and 40.6%, respectively, compared to the control. These are significant results and indicate that CMC-supported goethite is likely to be the most effective soil additive in diminishing the toxicity of Cd, Pb, and Zn to metal-stressed summer savory.
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Affiliation(s)
- Solmaz Bidast
- Soil Science Department, Faculty of Agriculture, University of Zanjan, Zanjan, Iran.
| | - Ahmad Golchin
- Soil Science Department, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
| | - Amir Mohseni
- Soil Science Department, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
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M'Rah S, Marichali A, M'Rabet Y, Chatti S, Casabianca H, Hosni K. Morphology, physiology, and biochemistry of zinc-stressed caraway plants. PROTOPLASMA 2023; 260:853-868. [PMID: 36329347 DOI: 10.1007/s00709-022-01818-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
A greenhouse pot experiment was conducted to evaluate the impact of zinc supply (0, 1, and 2 mM Zn as ZnSO4) on morpho-physiological and biochemical parameters of caraway (Carum carvi L.). Exposure to different Zn concentrations for 12 weeks compromised severely all growth parameters (plant height, number of secondary branches, diameter of primary and secondary branches, fresh and dry weight of aerial parts and roots) yield and its components (number of umbels per primary branches and secondary branches; number of umbel per plant; number of seeds per plant; and the weight of 1000 seeds). These manifestations were intimately linked with excessive accumulation of Zn in roots and leaves, alteration of the content of photosynthetic pigments, and extended lipid peroxidation. A manifest increment of proline and soluble sugar content was also observed in response to Zn application. Lipid content in seeds was dropped in Zn-treated plants and the fatty acid profiles were profoundly affected as they were enriched with saturated fatty acids at the expense of unsaturated ones. While improving their oxidative stability as revealed by the reduced values calculated oxidizability and oxidative susceptibility, Zn treatment reduced the lipid nutritional quality of caraway seeds. Moreover, Zn treatment reduced the essential oil yield and its main component carvone while it enhanced the content of its precursor limonene. It also induced alteration of terpene metabolism as revealed in the redirection of the carbon flux to the shikimate/phenylpropanoid pathway resulting in the stimulation of the production of phenolic compounds and their subsequent antioxidant activities.
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Affiliation(s)
- Sabah M'Rah
- Laboratoire Des Substances Naturelles, Institut National de Recherche Et d'Analyse Physico-Chimique (INRAP), Biorechpôle de Sidi Thabet, 2020, Ariana, Tunisia
- Laboratoire Productivité Végétale Et Contraintes Environnementales, Faculté Des Sciences de Tunis, Université Tunis El-Manar, 2092, Tunis, Tunisia
| | - Ahmed Marichali
- Laboratoire Des Substances Naturelles, Institut National de Recherche Et d'Analyse Physico-Chimique (INRAP), Biorechpôle de Sidi Thabet, 2020, Ariana, Tunisia
| | - Yassine M'Rabet
- Laboratoire Des Substances Naturelles, Institut National de Recherche Et d'Analyse Physico-Chimique (INRAP), Biorechpôle de Sidi Thabet, 2020, Ariana, Tunisia
| | - Saber Chatti
- Laboratoire Des Substances Naturelles, Institut National de Recherche Et d'Analyse Physico-Chimique (INRAP), Biorechpôle de Sidi Thabet, 2020, Ariana, Tunisia
| | - Hervé Casabianca
- Université de Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut Des Sciences Analytiques, UMR 5280, 5 Rue de La Doua, 69100, Villeurbanne, France
| | - Karim Hosni
- Laboratoire Des Substances Naturelles, Institut National de Recherche Et d'Analyse Physico-Chimique (INRAP), Biorechpôle de Sidi Thabet, 2020, Ariana, Tunisia.
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Liao YY, Pereira J, Huang Z, Fan Q, Santra S, White JC, De La Torre-Roche R, Da Silva S, Vallad GE, Freeman JH, Jones JB, Paret ML. Potential of Novel Magnesium Nanomaterials to Manage Bacterial Spot Disease of Tomato in Greenhouse and Field Conditions. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091832. [PMID: 37176889 PMCID: PMC10180654 DOI: 10.3390/plants12091832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
Bacterial spot of tomato is among the most economically relevant diseases affecting tomato plants globally. In previous studies, non-formulated magnesium oxide nanoparticles (nano-MgOs) significantly reduced the disease severity in greenhouse and field conditions. However, the aggregation of nano-MgO in liquid suspension makes it challenging to use in field applications. Therefore, we formulated two novel MgO nanomaterials (SgMg #3 and SgMg #2.5) and one MgOH2 nanomaterial (SgMc) and evaluated their physical characteristics, antibacterial properties, and disease reduction abilities. Among the three Mg nanomaterials, SgMc showed the highest efficacy against copper-tolerant strains of Xanthomonas perforans in vitro, and provided disease reduction in the greenhouse experiments compared with commercial Cu bactericide and an untreated control. However, SgMc was not consistently effective in field conditions. To determine the cause of its inconsistent efficacy in different environments, we monitored particle size, zeta potential, morphology, and crystallinity for all three formulated materials and nano-MgOs. The MgO particle size was determined by the scanning electron microscopy (SEM) and dynamic light scattering (DLS) techniques. An X-ray diffraction (XRD) study confirmed a change in the crystallinity of MgO from a periclase to an Mg(OH)2 brucite crystal structure. As a result, the bactericidal activity correlated with the high crystallinity present in nano-MgOs and SgMc, while the inconsistent antimicrobial potency of SgMg #3 and SgMg #2.5 might have been related to loss of crystallinity. Future studies are needed to determine which specific variables impair the performance of these nanomaterials in the field compared to under greenhouse conditions. Although SgMc did not lead to significant disease severity reduction in the field, it still has the potential to act as an alternative to Cu against bacterial spot disease in tomato transplant production.
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Affiliation(s)
- Ying-Yu Liao
- Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA
- North Florida Research and Education Center, University of Florida, Quincy, FL 32351, USA
| | - Jorge Pereira
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA
| | - Ziyang Huang
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA
| | - Qiurong Fan
- Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA
- North Florida Research and Education Center, University of Florida, Quincy, FL 32351, USA
| | - Swadeshmukul Santra
- Department of Chemistry, University of Central Florida, Orlando, FL 32816, USA
- NanoScience Technology Center, University of Central Florida, Orlando, FL 32826, USA
- Burnett School of Biomedical Sciences, University of Central Florida, Orlando, FL 32816, USA
| | - Jason C White
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA
| | - Roberto De La Torre-Roche
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06511, USA
| | - Susannah Da Silva
- North Florida Research and Education Center, University of Florida, Quincy, FL 32351, USA
| | - Gary E Vallad
- Gulf Coast Research and Education Center, University of Florida, Wimauma, FL 33598, USA
| | - Joshua H Freeman
- North Florida Research and Education Center, University of Florida, Quincy, FL 32351, USA
| | - Jeffrey B Jones
- Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA
| | - Mathews L Paret
- Department of Plant Pathology, University of Florida, Gainesville, FL 32611, USA
- North Florida Research and Education Center, University of Florida, Quincy, FL 32351, USA
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Castellano-Hinojosa A, Albrecht U, Strauss SL. Interactions between rootstocks and compost influence the active rhizosphere bacterial communities in citrus. MICROBIOME 2023; 11:79. [PMID: 37076924 PMCID: PMC10116748 DOI: 10.1186/s40168-023-01524-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 03/20/2023] [Indexed: 05/03/2023]
Abstract
BACKGROUND While the rootstock genotype (belowground part of a plant) can impact rhizosphere microbial communities, few studies have examined the relationships between rootstock genotype-based recruitment of active rhizosphere bacterial communities and the availability of root nutrients for plant uptake. Rootstocks are developed to provide resistance to disease or tolerance of abiotic stresses, and compost application is a common practice to also control biotic and abiotic stresses in crops. In this field study, we examined: (i) the effect of four citrus rootstocks and/or compost application on the abundance, diversity, composition, and predicted functionality of active rhizosphere bacterial communities, and (ii) the relationships between active rhizosphere bacterial communities and root nutrient concentrations, with identification of bacterial taxa significantly correlated with changes in root nutrients in the rhizosphere. RESULTS The rootstock genotype determined differences in the diversity of active rhizosphere bacterial communities and also impacted how compost altered the abundance, diversity, composition, and predicted functions of these active communities. Variations in the active bacterial rhizobiome were strongly linked to root nutrient cycling, and these interactions were root-nutrient- and rootstock-specific. Direct positive relationships between enriched taxa in treated soils and specific root nutrients were detected, and potentially important taxa for root nutrient uptake were identified. Significant differences in specific predicted functions were related to soil nutrient cycling (carbon, nitrogen, and tryptophan metabolisms) in the active bacterial rhizobiome among rootstocks, particularly in soils treated with compost. CONCLUSIONS This study illustrates that interactions between citrus rootstocks and compost can influence active rhizosphere bacterial communities, which impact root nutrient concentrations. In particular, the response of the rhizobiome bacterial abundance, diversity, and community composition to compost was determined by the rootstock. Specific bacterial taxa therefore appear to be driving changes in root nutrient concentrations in the active rhizobiome of different citrus rootstocks. Several potential functions of active bacterial rhizobiomes recruited by different citrus rootstocks did not appear to be redundant but rather rootstock-specific. Together, these findings have important agronomic implications as they indicate the potential for agricultural production systems to maximize benefits from rhizobiomes through the choice of selected rootstocks and the application of compost. Video Abstract.
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Affiliation(s)
- Antonio Castellano-Hinojosa
- Department of Soil, Water, and Ecosystem Sciences, Southwest Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, 2685 State Rd 29N, Immokalee, FL, 34142, USA.
| | - Ute Albrecht
- Department of Horticultural Sciences, Southwest Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, 2685 State Rd 29N, Immokalee, FL, 34142, USA
| | - Sarah L Strauss
- Department of Soil, Water, and Ecosystem Sciences, Southwest Florida Research and Education Center, Institute of Food and Agricultural Sciences, University of Florida, 2685 State Rd 29N, Immokalee, FL, 34142, USA.
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Ullah S, Naeem A, Calkaite I, Hosney A, Depar N, Barcauskaite K. Zinc (Zn) mitigates copper (Cu) toxicity and retrieves yield and quality of lettuce irrigated with Cu and Zn-contaminated simulated wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:54800-54812. [PMID: 36881224 DOI: 10.1007/s11356-023-26250-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
Owing to a competitive interaction, zinc (Zn) contained in highly Cu-contained wastewater was hypothesized to mitigate Cu toxicity-induced negative effects on the growth and quality of lettuce. Thus, growth, metal accumulation and biochemical responses of lettuce irrigated with simulated wastewater (SW, control), Cu-contaminated SW (CuSW, 20 mg Cu L-1), Zn-contaminated SW (ZnSW, 100 mg Zn L-1) and both Cu- and Zn-contaminated SW (CuZnSW, 20 mg Cu and 100 mg Zn L-1) were evaluated. Results revealed that irrigation with CuSW negatively affected growth (dry matters, root length and plant height) and quality (low mineral concentrations) of lettuce, which were associated with higher Cu uptake. Irrigation with Zn + Cu-contaminated SW retrieved Cu toxicity and improved root and shoot dry matters and root length by 13.5%, 46% and 19%, respectively compared to that with alone Cu-contaminated SW. Moreover, CuZnSW improved lettuce leaf quality compared to CuSW and increased concentrations of Mg (30%), P (15%), Ca (41%), Mn (24%) and Fe (23%). Moreover, compared to CuSW, CuZnSW improved flavonoids (54%), total polyphenolic compounds (1.8-fold), polyphenolic acids (77%) and antiradical activities (16.6%). Most importantly, Zn addition boosted up lettuce Cu tolerance index by 18% under Cu-contaminated SW treatment. Pearson's correlation analysis among various growth and mineral parameters demonstrated that shoot Zn concentration was positively related to elemental concentrations, phytochemical contents and antioxidant activity under Cu-contaminated environment. Thus, it is concluded that Zn supplementation retrieves negative effects of Cu toxicity to lettuce grown with Cu-contaminated wastewater.
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Affiliation(s)
- Sana Ullah
- Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344, Kėdainiai, Lithuania.
- Soil and Environmental Sciences Division, Nuclear Institute of Agriculture (NIA), Tandojam, Pakistan.
| | - Asif Naeem
- Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad, 38000, Pakistan
| | - Ieva Calkaite
- Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344, Kėdainiai, Lithuania
| | - Ahmed Hosney
- Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344, Kėdainiai, Lithuania
| | - Nizamuddin Depar
- Soil and Environmental Sciences Division, Nuclear Institute of Agriculture (NIA), Tandojam, Pakistan
| | - Karolina Barcauskaite
- Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry, Instituto al. 1, Akademija, LT-58344, Kėdainiai, Lithuania
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Callaghan C, Califano D, Feresin Gomes MH, Pereira de Carvalho HW, Edler KJ, Mattia D. Cellulose Acetate Microbeads for Controlled Delivery of Essential Micronutrients. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2023; 11:4749-4758. [PMID: 37008180 PMCID: PMC10052346 DOI: 10.1021/acssuschemeng.2c07269] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 03/07/2023] [Indexed: 06/19/2023]
Abstract
The controlled delivery of micronutrients to soil and plants is essential to increase agricultural yields. However, this is today achieved using fossil fuel-derived plastic carriers, posing environmental risks and contributing to global carbon emissions. In this work, a novel and efficient way to prepare biodegradable zinc-impregnated cellulose acetate beads for use as controlled release fertilizers is presented. Cellulose acetate solutions in DMSO were dropped into aqueous antisolvent solutions of different zinc salts. The droplets underwent phase inversion, forming solid cellulose acetate beads containing zinc, as a function of zinc salt type and concentration. Even higher values of zinc uptake (up to 15.5%) were obtained when zinc acetate was added to the cellulose acetate-DMSO solution, prior to dropping in aqueous zinc salt antisolvent solutions. The release profile in water of the beads prepared using the different solvents was linked to the properties of the counter-ions via the Hofmeister series. Studies in soil showed the potential for longer release times, up to 130 days for zinc sulfate beads. These results, together with the efficient bead production method, demonstrate the potential of zinc-impregnated cellulose acetate beads to replace the plastic-based controlled delivery products used today, contributing to the reduction of carbon emissions and potential environmental impacts due to the uptake of plastic in plants and animals.
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Affiliation(s)
- Ciarán Callaghan
- Centre
for Sustainable & Circular Technologies, University of Bath, Bath BA27AY, U.K.
- Department
of Chemical Engineering, University of Bath, Bath BA27AY, U.K.
| | - Davide Califano
- Centre
for Sustainable & Circular Technologies, University of Bath, Bath BA27AY, U.K.
| | | | | | - Karen J. Edler
- Department
of Chemical Engineering, University of Bath, Bath BA27AY, U.K.
- Centre
for Analysis and Synthesis, Department of Chemistry, Lund University, Lund 221 00, Sweden
| | - Davide Mattia
- Centre
for Sustainable & Circular Technologies, University of Bath, Bath BA27AY, U.K.
- Department
of Chemical Engineering, University of Bath, Bath BA27AY, U.K.
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Kanakari E, Dendrinou-Samara C. Fighting Phytopathogens with Engineered Inorganic-Based Nanoparticles. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2388. [PMID: 36984268 PMCID: PMC10052108 DOI: 10.3390/ma16062388] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/07/2023] [Accepted: 03/13/2023] [Indexed: 06/18/2023]
Abstract
The development of effective and ecofriendly agrochemicals, including bactericides, fungicides, insecticides, and nematicides, to control pests and prevent plant diseases remains a key challenge. Nanotechnology has provided opportunities for the use of nanomaterials as components in the development of anti-phytopathogenic agents. Indeed, inorganic-based nanoparticles (INPs) are among the promising ones. They may play an effective role in targeting and killing microbes via diverse mechanisms, such as deposition on the microbe surface, destabilization of cell walls and membranes by released metal ions, and the induction of a toxic mechanism mediated by the production of reactive oxygen species. Considering the lack of new agrochemicals with novel mechanisms of action, it is of particular interest to determine and precisely depict which types of INPs are able to induce antimicrobial activity with no phytotoxicity effects, and which microbe species are affected. Therefore, this review aims to provide an update on the latest advances in research focusing on the study of several types of engineered INPs, that are well characterized (size, shape, composition, and surface features) and show promising reactivity against assorted species (bacteria, fungus, virus). Since effective strategies for plant protection and plant disease management are urgently needed, INPs can be an excellent alternative to chemical agrochemical agents as indicated by the present studies.
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VPg Impact on Ryegrass Mottle Virus Serine-like 3C Protease Proteolysis and Structure. Int J Mol Sci 2023; 24:ijms24065347. [PMID: 36982419 PMCID: PMC10048871 DOI: 10.3390/ijms24065347] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/03/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
Sobemoviruses encode serine-like 3C proteases (Pro) that participate in the processing and maturation of other virus-encoded proteins. Its cis and trans activity is mediated by the naturally unfolded virus-genome-linked protein (VPg). Nuclear magnetic resonance studies show a Pro–VPg complex interaction and VPg tertiary structure; however, information regarding structural changes of the Pro–VPg complex during interaction is lacking. Here, we solved a full Pro–VPg 3D structure of ryegrass mottle virus (RGMoV) that demonstrates the structural changes in three different conformations due to VPg interaction with Pro. We identified a unique site of VPg interaction with Pro that was not observed in other sobemoviruses, and observed different conformations of the Pro β2 barrel. This is the first report of a full plant Pro crystal structure with its VPg cofactor. We also confirmed the existence of an unusual previously unmapped cleavage site for sobemovirus Pro in the transmembrane domain: E/A. We demonstrated that RGMoV Pro in cis activity is not regulated by VPg and that in trans, VPg can also mediate Pro in free form. Additionally, we observed Ca2+ and Zn2+ inhibitory effects on the Pro cleavage activity.
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Tryfon P, Kamou NN, Pavlou A, Mourdikoudis S, Menkissoglu-Spiroudi U, Dendrinou-Samara C. Nanocapsules of ZnO Nanorods and Geraniol as a Novel Mean for the Effective Control of Botrytis cinerea in Tomato and Cucumber Plants. PLANTS (BASEL, SWITZERLAND) 2023; 12:1074. [PMID: 36903940 PMCID: PMC10005723 DOI: 10.3390/plants12051074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Inorganic-based nanoparticle formulations of bioactive compounds are a promising nanoscale application that allow agrochemicals to be entrapped and/or encapsulated, enabling gradual and targeted delivery of their active ingredients. In this context, hydrophobic ZnO@OAm nanorods (NRs) were firstly synthesized and characterized via physicochemical techniques and then encapsulated within the biodegradable and biocompatible sodium dodecyl sulfate (SDS), either separately (ZnO NCs) or in combination with geraniol in the effective ratios of 1:1 (ZnOGer1 NCs), 1:2 (ZnOGer2 NCs), and 1:3 (ZnOGer2 NCs), respectively. The mean hydrodynamic size, polydispersity index (PDI), and ζ-potential of the nanocapsules were determined at different pH values. The efficiency of encapsulation (EE, %) and loading capacity (LC, %) of NCs were also determined. Pharmacokinetics of ZnOGer1 NCs and ZnOGer2 NCs showed a sustainable release profile of geraniol over 96 h and a higher stability at 25 ± 0.5 °C rather than at 35 ± 0.5 °C. ZnOGer1 NCs, ZnOGer2 NCs and ZnO NCs were evaluated in vitro against B. cinerea, and EC50 values were calculated at 176 μg/mL, 150 μg/mL, and > 500 μg/mL, respectively. Subsequently, ZnOGer1 NCs and ZnOGer2 NCs were tested by foliar application on B. cinerea-inoculated tomato and cucumber plants, showing a significant reduction of disease severity. The foliar application of both NCs resulted in more effective inhibition of the pathogen in the infected cucumber plants as compared to the treatment with the chemical fungicide Luna Sensation SC. In contrast, tomato plants treated with ZnOGer2 NCs demonstrated a better inhibition of the disease as compared to the treatment with ZnOGer1 NCs and Luna. None of the treatments caused phytotoxic effects. These results support the potential for the use of the specific NCs as plant protection agents against B. cinerea in agriculture as an effective alternative to synthetic fungicides.
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Affiliation(s)
- Panagiota Tryfon
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Nathalie N. Kamou
- Pesticide Science Laboratory, School of Agriculture, Faculty of Agriculture Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Akrivi Pavlou
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Stefanos Mourdikoudis
- Biophysics Group, Department of Physics and Astronomy, University College London, London WC1E 6BT, UK
- UCL Healthcare Biomagnetics and Nanomaterials Laboratories, 21 Albemarle Street, London W1S 4BS, UK
| | - Urania Menkissoglu-Spiroudi
- Pesticide Science Laboratory, School of Agriculture, Faculty of Agriculture Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Catherine Dendrinou-Samara
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Lombardo MF, Panebianco S, Azzaro A, Catara V, Cirvilleri G. Assessing Copper-Alternative Products for the Control of Pre- and Postharvest Citrus Anthracnose. PLANTS (BASEL, SWITZERLAND) 2023; 12:904. [PMID: 36840250 PMCID: PMC9965279 DOI: 10.3390/plants12040904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Citrus production is worldwide threatened by Colletotrichum spp., causal agents of pre- and postharvest anthracnose. The recent limitation on the use of copper-based antimicrobials, due to its demonstrated noxious effect on the environment, makes the control of this pathogen difficult. Thus, alternative products able to reduce/phase out copper in organic citrus farming are needed. In this study, the efficacy of 11 commercial alternative products were evaluated in vitro, in growth chamber, in open field and in postharvest environments. In vitro, mineral fertilizers, basic substances, essential oils, plant defense stimulators and biological control agents were able to inhibit the mycelial growth with variable efficacy. On artificially infected citrus fruit, almost all tested products significantly reduced disease incidence and severity, but with lower efficacy than copper. The efficacy of mineral fertilizers-based Kiram and Vitibiosap 458 Plus, citrus essential oil-based Prev-Am Plus and chitosan-based Biorend was confirmed in open field trials, in naturally infected citrus fruits. In these trials Biorend was the best alternative product, significantly reducing disease incidence (71% DI reduction) with better results than copper (47.5%). Field treatments reduced the incidence and severity of the disease in postharvest conditions, especially in fruits field-treated three times. Overall, selected products tested in open field can represent a good alternative to copper compounds in the view of future limitation of its use.
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Wang H, Qian C, Jiang H, Liu S, Yang D, Cui J. Visible-Light-Driven Zinc Oxide Quantum Dots for the Management of Bacterial Fruit Blotch Disease and the Improvement of Melon Seedlings Growth. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:2773-2783. [PMID: 36703540 DOI: 10.1021/acs.jafc.2c06204] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Bacterial fruit blotch is one of the most destructing diseases of melon producing-regions. Here, zinc oxide quantum dots (ZnO QDs) were synthesized, and their antibacterial activity against Acidovorax citrulli was investigated. The results indicated that the obtained ZnO QDs displayed 5.7-fold higher antibacterial activity than a commercial Zn-based bactericide (zinc thiazole). Interestingly, the antibacterial activity of ZnO QDs irradiated with light was 1.8 times higher than that of the dark-treated group. It was because ZnO QDs could induce the generation of hydroxyl radicals and then up-regulate the expression of oxidative stress-related genes, finally leading to the loss of cell membrane integrity. A pot experiment demonstrated that foliar application of ZnO QDs significantly reduced the bacterial fruit blotch disease incidence (32.0%). Furthermore, the supply of ZnO QDs could improve the growth of infected melon seedlings by activating the antioxidant defense system. This work provides a promising light-activated quantum-bactericide for the management of pathogenic bacterial infections in melon crop protection.
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Affiliation(s)
- Haodong Wang
- College of Agriculture/Key Laboratory of Oasis Agricultural Pest Management and Plant Protection Resources Utilization, Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi, Xinjiang832003, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, China
| | - Cancan Qian
- College of Agriculture/Key Laboratory of Oasis Agricultural Pest Management and Plant Protection Resources Utilization, Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi, Xinjiang832003, China
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, China
| | - Hao Jiang
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, China
| | - Shengxue Liu
- Analysis and Test Center, Shihezi University, Shihezi, Xinjiang832003, China
| | - Desong Yang
- College of Agriculture/Key Laboratory of Oasis Agricultural Pest Management and Plant Protection Resources Utilization, Xinjiang Uygur Autonomous Region, Shihezi University, Shihezi, Xinjiang832003, China
| | - Jianghu Cui
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou510650, China
- Guangdong-Hong Kong-Macao Joint Laboratory for Environmental Pollution and Control, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou510640, China
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Mihai RA, Melo Heras EJ, Terán Maza VA, Espinoza Caiza IA, Pinto Valdiviezo EA, Catana RD. The Panoramic View of Ecuadorian Soil Nutrients (Deficit/Toxicity) from Different Climatic Regions and Their Possible Influence on the Metabolism of Important Crops. TOXICS 2023; 11:123. [PMID: 36850998 PMCID: PMC9964189 DOI: 10.3390/toxics11020123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 06/18/2023]
Abstract
Soil nutrients influence all stages (reproduction, growth, and development) of a plant species' life, and it is known that the deficit and/or toxicity of one or more nutrients has negative effects on the production of crops of commercial interest. Ecuador represents one of the "mega-diverse" countries in the world, with an agricultural sector of great importance, due to its contribution to the country's economy. This review provides a panoramic view of soil nutrients from different climatic regions of Ecuador and revises the importance of knowledge about the possible influence of nutrients from the soil on the plant metabolism able to influence the crop resistance against pathogens or to enrich the biological characteristics of these crops.
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Affiliation(s)
- Raluca A. Mihai
- CICTE, Department of Life Science and Agriculture, Universidad De Las Fuerzas Armadas—ESPE, Av. General Rumiñahui s/n y, Sangolquí 171103, Ecuador
| | - Erly J. Melo Heras
- CICTE, Department of Life Science and Agriculture, Universidad De Las Fuerzas Armadas—ESPE, Av. General Rumiñahui s/n y, Sangolquí 171103, Ecuador
| | - Vanessa A. Terán Maza
- CICTE, Department of Life Science and Agriculture, Universidad De Las Fuerzas Armadas—ESPE, Av. General Rumiñahui s/n y, Sangolquí 171103, Ecuador
| | - Iván A. Espinoza Caiza
- CICTE, Department of Life Science and Agriculture, Universidad De Las Fuerzas Armadas—ESPE, Av. General Rumiñahui s/n y, Sangolquí 171103, Ecuador
| | - Eliza A. Pinto Valdiviezo
- CICTE, Department of Life Science and Agriculture, Universidad De Las Fuerzas Armadas—ESPE, Av. General Rumiñahui s/n y, Sangolquí 171103, Ecuador
| | - Rodica D. Catana
- Institute of Biology Bucharest, Romanian Academy, 296 Splaiul Independentei, 060031 Bucharest, Romania
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Zarea MJ, Karimi N. Grain yield and quality of wheat are improved through post-flowering foliar application of zinc and 6- benzylaminopurine under water deficit condition. FRONTIERS IN PLANT SCIENCE 2023; 13:1068649. [PMID: 36714766 PMCID: PMC9879624 DOI: 10.3389/fpls.2022.1068649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/20/2022] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Zinc (Zn) as an essential micronutrient and cytokinin as phytohormone not only regulate plant growth but also play fundamental roles in plant tolerance against drought stress. Understating the function and the role of cytokinin in combined with an essential micronutrient, Zn, could improve the choice of a sustainable strategy for improvement of plant drought stress. The objective of this field research was to determine the effect of post-flowering foliar application of ZnSO4 and 6-benzylaminopurine (6-BAP) on grain yield and quality of winter wheat under water deficit condition. METHODS Experiments were conducted under filed condition. Drought was imposed by with holding irrigation at the beginning of flowering till the signs of temporary wilting/leaf rolling appeared, after which all plots were irrigated to field capacity. The foliar treatment consisted of (1) foliar application of water, as control treatment; (2) foliar application of 10 g ha-1 6-BAP; (3) Foliar application of 20 g ha-1 6-BAP; (4) Foliar application of 10 g ha-1 6-BAP plus foliar application of 6 kg ha-1 ZnSO4 solution and (5) foliar application of 10 g ha-1 6-BAP plus foliar application of 6 kg ha-1 ZnSO4 solution 2 days before drought imposition. Data were collected on grain and straw yield, yield attributes, harvest index, flag leaf fresh matter and dry matter weight, TaCKX6-D1 expression, phytic acid content in grains, mycorrhiza colonization rate and succinate dehydrogenase (SD) activity. RESULTS According to ANOVA, the factor 'Zn' significantly affected leaf relative water content (p < 0.001). Relative water content for plants foliar applied with 6-BAP was not statistically significant. Applying Zn increased yield, straw dry weight, and kernel weight relative to plants sprayed with water alone. Increased grain yield due to foliar application of Zn was associated with decrease in cytokinin oxidase/dehydrogenase (TaCKX) and increase in kernel weight. Results showed that the drought stress significantly decreased 1000-grain weight that was accompanied with over-expression of cytokinin oxidase/dehydrogenase (TaCKX). Foliar application of Zn increased the concentration of Zn in grains. The experimental data on the zinc content of grain indicated no significant difference between the 6-BAP at 10 mg L-1 and control treatment. The phytate to Zn molar ratio was significantly affected by foliar applied Zn, but not significantly by applied 6-BAP. In the present study, SD activity of the hyphae of indigenous arbuscular mycorrhizal fungi (IAMF) associated with plant roots was also assayed. Results disclose that SD activity of IAMF was significantly affected by Zn treatments during grain filling stages. DISCUSSION In summary, both foliar applied Zn and 6-BAP had the significant effects on all measured parameters in winter wheat. However, spike number, harvest index and mycorrhizal colonization rate were neither significantly affected by Zn nor 6- BAP. Foliar application of Zn at 0.6% (6 kg ha-1) and higher 6-BAP (20 mg L-1 m-2) promoted wheat growth and performances under imposed drought stress condition. Plant that only foliar sprayed with water showed higher level of TaCKX6-D1 expression as compared to Zn treated plants, indicating these plants were more affected by imposed drought relative to those plants treated with Zn. The results of this study provides evidence that a combination of Zn and 6-BAP could be an effective in improvement of drought tolerance of wheat and prevents grain yield from further reduction in terms of quality and quantity due to drought stress.
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Ducret V, Gonzalez D, Leoni S, Valentini M, Perron K. A Zur-mediated transcriptional regulation of the zinc export system in Pseudomonas aeruginosa. BMC Microbiol 2023; 23:6. [PMID: 36617571 PMCID: PMC9827704 DOI: 10.1186/s12866-022-02750-4] [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: 10/12/2022] [Accepted: 12/28/2022] [Indexed: 01/10/2023] Open
Abstract
The control of cellular zinc (Zn) concentrations by dedicated import and export systems is essential for the survival and virulence of Pseudomonas aeruginosa. The transcription of its many Zn transporters is therefore tightly regulated by a known set of transcription factors involved in either the import or the export of Zn. In this work, we show that the Zur protein, a well-known repressor of Zn import, plays a dual role and functions in both import and export processes. In a situation of Zn excess, Zur represses Zn entry, but also activates the transcription of czcR, a positive regulator of the Zn export system. To achieve this, Zur binds at two sites, located by DNA footprinting in the region downstream the czcR transcription start site. In agreement with this regulation, a delay in induction of the efflux system is observed in the absence of Zur and Zn resistance is reduced. The discovery of this regulation highlights a new role of Zur as global regulator of Zn homeostasis in P. aeruginosa disclosing an important link between Zur and zinc export.
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Affiliation(s)
- Verena Ducret
- grid.8591.50000 0001 2322 4988Department of Plant Sciences, Microbiology Unit, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Diego Gonzalez
- grid.10711.360000 0001 2297 7718Laboratory of Microbiology, Institute of Biology, Faculty of Sciences, University of Neuchâtel, Rue Emile-Argand 11, 2000 Neuchâtel, Switzerland
| | - Sara Leoni
- grid.8591.50000 0001 2322 4988Department of Plant Sciences, Microbiology Unit, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland
| | - Martina Valentini
- grid.8591.50000 0001 2322 4988Department of Microbiology and Molecular Medicine, Faculty of Medicine, CMU, University of Geneva, Geneva, Switzerland
| | - Karl Perron
- grid.8591.50000 0001 2322 4988Department of Plant Sciences, Microbiology Unit, University of Geneva, Quai Ernest-Ansermet 30, 1211 Geneva 4, Switzerland ,grid.8591.50000 0001 2322 4988Section of Pharmaceutical Sciences, University of Geneva, Rue Michel-Servet 1, 1205 Geneva, Switzerland
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Wang W, Liu J, Mishra B, Mukhtar MS, McDowell JM. Sparking a sulfur war between plants and pathogens. TRENDS IN PLANT SCIENCE 2022; 27:1253-1265. [PMID: 36028431 DOI: 10.1016/j.tplants.2022.07.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 07/03/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
The biochemical versatility of sulfur (S) lends itself to myriad roles in plant-pathogen interactions. This review evaluates the current understanding of mechanisms by which pathogens acquire S from their plant hosts and highlights new evidence that plants can limit S availability during the immune responses. We discuss the discovery of host disease-susceptibility genes related to S that can be genetically manipulated to create new crop resistance. Finally, we summarize future research challenges and propose a research agenda that leverages systems biology approaches for a holistic understanding of this important element's diverse roles in plant disease resistance and susceptibility.
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Affiliation(s)
- Wei Wang
- School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA 24061, USA
| | - Jinbao Liu
- Department of Biology, University of Alabama-Birmingham, Birmingham, AL 35294, USA
| | - Bharat Mishra
- Department of Biology, University of Alabama-Birmingham, Birmingham, AL 35294, USA
| | - M Shahid Mukhtar
- Department of Biology, University of Alabama-Birmingham, Birmingham, AL 35294, USA
| | - John M McDowell
- School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA 24061, USA.
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Yeo SM, Hong J, Hossain MR, Jung HJ, Choe P, Nou IS. Genotyping by Sequencing (GBS)-Based QTL Mapping for Bacterial Fruit Blotch (BFB) in Watermelon. Genes (Basel) 2022; 13:genes13122250. [PMID: 36553516 PMCID: PMC9777634 DOI: 10.3390/genes13122250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
Watermelon (Citrullus lanatus), an economically important and nutritionally rich Cucurbitaceous crop grown worldwide, is severely affected by bacterial fruit blotch (BFB). Development of resistant cultivar is the most eco-friendly, cost-effective, and sustainable way to tackle this disease. This requires wider understanding of the genetics of resistance to BFB. In this study, we identified quantitative trait loci (QTLs) associated with BFB resistance in an F2 mapping population developed from BFB-resistant 'PI 189225' (Citrullus amarus) and -susceptible 'SW 26' (C. lanatus) genotypes based on the polymorphic markers identified by genotyping by sequencing (GSB). A linkage map covering a total genetic distance of 3377.1 cM was constructed. Two QTLs for BFB resistance, namely, ClBFB10.1 and ClBFB10.2, both located on chromosome 10 explaining 18.84 and 15.41% of the phenotypic variations, respectively, were identified. Two SNP-based high-resolution melting (HRM) markers WmBFB10.1 and WmBFB10.2 having high positive correlation with resistance vs. susceptible alleles were developed. The efficacy of the markers was validated in another F2 population derived from SW34 × PI 189225. The highest phenotypic variation was found in the locus ClBFB10.2, which also contains three putative candidate genes for resistance to BFB. These findings will accelerate the development of BFB-resistant watermelon varieties via molecular breeding.
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Affiliation(s)
- Sang-Min Yeo
- Department of Horticulture, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Jeongeui Hong
- Department of Biological Sciences and Biotechnology, Chungbuk National University, Cheongju 28644, Republic of Korea
| | - Mohammad Rashed Hossain
- Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh
| | - Hee-Jeong Jung
- Department of Horticulture, Sunchon National University, Suncheon 57922, Republic of Korea
| | - Phillip Choe
- PPS Farming Corporation, Yongin 17096, Republic of Korea
| | - Ill-Sup Nou
- Department of Horticulture, Sunchon National University, Suncheon 57922, Republic of Korea
- Correspondence:
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Dharmateja P, Yadav R, Kumar M, Babu P, Jain N, Mandal PK, Pandey R, Shrivastava M, Gaikwad KB, Bainsla NK, Tomar V, Sugumar S, Saifi N, Ranjan R. Genome-wide association studies reveal putative QTLs for physiological traits under contrasting phosphorous conditions in wheat (Triticum aestivum L.). Front Genet 2022; 13:984720. [DOI: 10.3389/fgene.2022.984720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 10/17/2022] [Indexed: 11/13/2022] Open
Abstract
A Genome-wide association (GWAS) study was conducted for phosphorous (P)-use responsive physiological traits in bread wheat at the seedling stage under contrasting P regimes. A panel of 158 diverse advanced breeding lines and released varieties, and a set of 10,800 filtered single nucleotide polymorphism (SNP) markers were used to study marker-trait associations over the eight shoot traits. Principle component analysis separated the two environments (P regimes) because of the differential response of the traits indicating the essentiality of the separate breeding programmes for each environment. Significant variations for genotypic, environmental, and genotype × environment (GEI) effects were observed for all the traits in the combined analysis of variance with moderately high broad sense heritability traits (0.50–0.73). With the different algorithms of association mapping viz., BLINK, FarmCPU, and MLM, 38 unique QTLs under non-limiting P (NLP) and 45 QTLs for limiting P (LP) conditions for various shoot traits were identified. Some of these QTLs were captured by all three algorithms. Interestingly, a Q.iari.dt.sdw.1 on chromosome 1D was found to explain the significant variations in three important physiological traits under non-limiting phosphorus (NLP) conditions. We identified the putative candidate genes for QTLs namely Q.iari.dt.chl.1, Q.iari.dt.sdw.16, Q.iari.dt.sdw.9 and Q.iari.dt.tpc.1 which are potentially involved in the mechanism regulating phosphorus use efficiency through improved P absorption due to improved root architectural traits and better mobilization such as sulfotransferase involved in postembryonic root development, WALLS ARE THIN1 (WAT1), a plant-specific protein that facilitates auxin export; lectin receptor-like kinase essentially involved in plant development, stress response during germination and lateral root development and F-box component of the SKP-Cullin-F box E3 ubiquitin ligase complex and strigolactone signal perception. Expression profiling of putative genes located in identified genomic regions against the wheat expression atlas revealed their significance based on the expression of these genes for stress response and growth development processes in wheat. Our results thus provide an important insight into understanding the genetic basis for improving PUE under phosphorus stress conditions and can shape the future breeding programme by developing and integrating molecular markers for these difficult-to-score important traits.
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Morina F, Küpper H. Trace metals at the frontline of pathogen defence responses in non-hyperaccumulating plants. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:6516-6524. [PMID: 35876626 DOI: 10.1093/jxb/erac316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 07/21/2022] [Indexed: 06/15/2023]
Abstract
Metal hyperaccumulation is an exclusive evolutionary trait contributing to efficient plant defence against biotic stress. The defence can be based on direct metal toxicity or the joint effects of accumulated metal and organic compounds, the latter being based on integrated signalling networks. While the role of metals in biotic stress defence of hyperaccumulators has been intensively studied, their role in the pathogen immunity of non-accumulator plants is far less understood. New findings show that in metal non-hyperaccumulating plants, localized hot spots of zinc, manganese, and iron increase plant immunity, while manipulation of nutrient availability may be used for priming against subsequent pathogen attack. Recent findings on the role of metals in plant-pathogen interactions are discussed considering the narrow line between deficiency and toxicity, host-pathogen nutrient competition and synergistic effects of simultaneous metal and biotic stress. We discuss the suitability of the direct-defence and joint-effects hypotheses in non-hyperaccumulating plants, and the involvement of metals as active centres of immunity-related enzymes. We also consider future challenges in revealing the mechanisms underlying metal-mediated plant immunity.
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Affiliation(s)
- Filis Morina
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Department of Plant Biophysics & Biochemistry, Branišovská, České Budějovice, Czech Republic
| | - Hendrik Küpper
- Czech Academy of Sciences, Biology Centre, Institute of Plant Molecular Biology, Department of Plant Biophysics & Biochemistry, Branišovská, České Budějovice, Czech Republic
- University of South Bohemia, Department of Experimental Plant Biology, Branišovská, České Budějovice, Czech Republic
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Beesley L, Trakal L, Hough R, Mitchell K. Mobility and crop uptake of Zn in a legacy sludge-enriched agricultural soil amended with biochar or compost: insights from a pot and recirculating column leaching test. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:83545-83553. [PMID: 35764732 DOI: 10.1007/s11356-022-21744-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
The application of organic amendments to contaminated soils is a remediation method to regulate metal(loid) leaching to waters and uptake to crops. Here, wood-derived biochar and/or green waste compost was amended to a Zn-rich agricultural soil (~ 450 mg kg-1 total Zn, derived from legacy sludge application). A pot experiment grew barley and pea crops in amended soil for 100 days, simultaneously measuring Zn, pH, and dissolved organic carbon (DOC) in pore waters and Zn uptake to plants. An assessment was made of leaching of Zn via a linked column test that recirculated soil leachates to amendments multiple times to chart the confounding impacts of pH and DOC on Zn mobility. Concentrations of Zn in pore waters in the pot test were reduced from 2 mg l-1 in soil without amendment to 1 mg l-1 following the addition of 5% (vol.) biochar and compost, which was reduced further (0.5 mg l-1) in the presence of crops. DOC appeared largely unaffected by soil amendment when mixed into soil, though was universally increased by the presence of the barley crop, whilst pH was variable (pH 4-6) and not clearly correlated with any intervention. Barley head mass was significantly increased after 5% biochar and both doses of compost amendment. Barley Zn content was maintained or enhanced by all soil amendments. The leaching column test revealed that biochar raised pH above that of the soil and compost amendment. Zn leachate concentrations were also reduced from after biochar amendment. Notably, compost resulted in net mobilisation of Zn from soil. This study demonstrates that the addition of biochar and compost to a Zn-rich agricultural soil was able to reduce pore water Zn considerably, especially in the presence of a barley crop. Compared to compost, biochar was the more efficient sorbent of Zn.
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Affiliation(s)
- Luke Beesley
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129 6 Suchdol, 16500, Prague, Czech Republic
- The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK
| | - Lukas Trakal
- Department of Environmental Geosciences, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129 6 Suchdol, 16500, Prague, Czech Republic
| | - Rupert Hough
- The James Hutton Institute, Craigiebuckler, Aberdeen, AB15 8QH, UK
| | - Kerry Mitchell
- St. George's University, True Blue, Saint George, W.I., Grenada.
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Mapuranga J, Zhang N, Zhang L, Liu W, Chang J, Yang W. Harnessing genetic resistance to rusts in wheat and integrated rust management methods to develop more durable resistant cultivars. FRONTIERS IN PLANT SCIENCE 2022; 13:951095. [PMID: 36311120 PMCID: PMC9614308 DOI: 10.3389/fpls.2022.951095] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Wheat is one of the most important staple foods on earth. Leaf rust, stem rust and stripe rust, caused by Puccini triticina, Puccinia f. sp. graminis and Puccinia f. sp. striiformis, respectively, continue to threaten wheat production worldwide. Utilization of resistant cultivars is the most effective and chemical-free strategy to control rust diseases. Convectional and molecular biology techniques identified more than 200 resistance genes and their associated markers from common wheat and wheat wild relatives, which can be used by breeders in resistance breeding programmes. However, there is continuous emergence of new races of rust pathogens with novel degrees of virulence, thus rendering wheat resistance genes ineffective. An integration of genomic selection, genome editing, molecular breeding and marker-assisted selection, and phenotypic evaluations is required in developing high quality wheat varieties with resistance to multiple pathogens. Although host genotype resistance and application of fungicides are the most generally utilized approaches for controlling wheat rusts, effective agronomic methods are required to reduce disease management costs and increase wheat production sustainability. This review gives a critical overview of the current knowledge of rust resistance, particularly race-specific and non-race specific resistance, the role of pathogenesis-related proteins, non-coding RNAs, and transcription factors in rust resistance, and the molecular basis of interactions between wheat and rust pathogens. It will also discuss the new advances on how integrated rust management methods can assist in developing more durable resistant cultivars in these pathosystems.
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