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Wang L, Tao X, Liu C, Liang X, Xu Y, Sun Y. Influence of Foliar Zinc Application on Cadmium and Zinc Bioaccessibility in Brassica chinensis L.: In Vitro Digestion and Chemical Sequential Extraction. Foods 2024; 13:2430. [PMID: 39123624 PMCID: PMC11311326 DOI: 10.3390/foods13152430] [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: 06/24/2024] [Revised: 07/25/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
Foliar zinc (Zn) application can affect the accumulation and bioaccessibility of cadmium (Cd) and Zn in crops. However, the mechanisms by which foliar Zn application influences Cd and Zn bioaccessibility remain elusive. This study examined the effects of spraying ZnSO4 and ZnNa2EDTA on bioaccessibility and chemical forms of Cd and Zn in pakchoi (Brassica chinensis L.) shoots and evaluated human health risks via pakchoi consumption. Spraying ZnSO4 reduced the concentrations of ethanol-extractable (Fethanol) and deionized water-extractable (Fd-H2O) Cd, as well as the corresponding bioaccessible Cd concentrations (20.3-66.4%) and attendant health risks of Cd, whereas spraying high-dose ZnNa2EDTA significantly increased the concentrations of both Cd forms and bioaccessible Cd. Spraying ZnSO4 and high-dose ZnNa2EDTA significantly increased the concentrations of Zn in Fethanol and Fd-H2O and the corresponding bioaccessible Zn concentrations (0.8-8.3-fold). Fethanol and Fd-H2O were the primary sources of bioaccessible Cd and Zn, contributing more than 59% of the bioaccessible Cd and Zn. These results indicate that foliar Zn application can affect Cd and Zn bioaccessibility in pakchoi mainly by modulating Cd and Zn in Fethanol and Fd-H2O. These findings provide scientific support for the development of more efficient measures to produce safe and high-quality leafy vegetables from Cd-polluted soils.
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Affiliation(s)
- Lin Wang
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (L.W.); (X.T.); (C.L.); (X.L.); (Y.X.)
- Key Laboratory of Original Agro–Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Xueying Tao
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (L.W.); (X.T.); (C.L.); (X.L.); (Y.X.)
- Key Laboratory of Original Agro–Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Chang Liu
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (L.W.); (X.T.); (C.L.); (X.L.); (Y.X.)
- Key Laboratory of Original Agro–Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Xuefeng Liang
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (L.W.); (X.T.); (C.L.); (X.L.); (Y.X.)
- Key Laboratory of Original Agro–Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Yingming Xu
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (L.W.); (X.T.); (C.L.); (X.L.); (Y.X.)
- Key Laboratory of Original Agro–Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
| | - Yuebing Sun
- Innovation Team of Heavy Metal Ecotoxicity and Pollution Remediation, Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China; (L.W.); (X.T.); (C.L.); (X.L.); (Y.X.)
- Key Laboratory of Original Agro–Environmental Pollution Prevention and Control, Ministry of Agriculture and Rural Affairs, Tianjin 300191, China
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Jeon SJ, Zhang Y, Castillo C, Nava V, Ristroph K, Therrien B, Meza L, Lowry GV, Giraldo JP. Targeted Delivery of Sucrose-Coated Nanocarriers with Chemical Cargoes to the Plant Vasculature Enhances Long-Distance Translocation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2304588. [PMID: 37840413 DOI: 10.1002/smll.202304588] [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: 05/31/2023] [Revised: 09/15/2023] [Indexed: 10/17/2023]
Abstract
Current practices for delivering agrochemicals are inefficient, with only a fraction reaching the intended targets in plants. The surfaces of nanocarriers are functionalized with sucrose, enabling rapid and efficient foliar delivery into the plant phloem, a vascular tissue that transports sugars, signaling molecules, and agrochemicals through the whole plant. The chemical affinity of sucrose molecules to sugar membrane transporters on the phloem cells enhances the uptake of sucrose-coated quantum dots (sucQD) and biocompatible carbon dots with β-cyclodextrin molecular baskets (suc-β-CD) that can carry a wide range of agrochemicals. The QD and CD fluorescence emission properties allowed detection and monitoring of rapid translocation (<40 min) in the vasculature of wheat leaves by confocal and epifluorescence microscopy. The suc-β-CDs more than doubled the delivery of chemical cargoes into the leaf vascular tissue. Inductively coupled plasma mass spectrometry (ICP-MS) analysis showed that the fraction of sucQDs loaded into the phloem and transported to roots is over 6.8 times higher than unmodified QDs. The sucrose coating of nanoparticles approach enables unprecedented targeted delivery to roots with ≈70% of phloem-loaded nanoparticles delivered to roots. The use of plant biorecognition molecules mediated delivery provides an efficient approach for guiding nanocarriers containing agrochemicals to the plant vasculature and whole plants.
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Affiliation(s)
- Su-Ji Jeon
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA
| | - Yilin Zhang
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Christopher Castillo
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA
| | - Valeria Nava
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Kurt Ristroph
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Benjamin Therrien
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Leticia Meza
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA
| | - Gregory V Lowry
- Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA, 15213, USA
| | - Juan Pablo Giraldo
- Department of Botany and Plant Sciences, University of California, Riverside, CA, 92521, USA
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van der Ent A, Salinitro M, Brueckner D, Spiers KM, Montanari S, Tassoni A, Schiavon M. Differences and similarities in selenium biopathways in Astragalus, Neptunia (Fabaceae) and Stanleya (Brassicaceae) hyperaccumulators. ANNALS OF BOTANY 2023; 132:349-361. [PMID: 37602676 PMCID: PMC10583200 DOI: 10.1093/aob/mcad110] [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: 05/09/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
BACKGROUND AND AIMS Selenium hyperaccumulator species are of primary interest for studying the evolution of hyperaccumulation and for use in biofortification because selenium is an essential element in human nutrition. In this study, we aimed to determine whether the distributions of selenium in the three most studied hyperaccumulating taxa (Astragalus bisulcatus, Stanleya pinnata and Neptunia amplexicaulis) are similar or contrasting, in order to infer the underlying physiological mechanisms. METHODS This study used synchrotron-based micro-X-ray fluorescence (µXRF) techniques to visualize the distribution of selenium and other elements in fresh hydrated plant tissues of A. racemosus, S. pinnata and N. amplexicaulis. KEY RESULTS Selenium distribution differed widely in the three species: in the leaves of A. racemosus and N. amplexicaulis selenium was mainly concentrated in the pulvini, whereas in S. pinnata it was primarilylocalized in the leaf margins. In the roots and stems of all three species, selenium was absent in xylem cells, whereas it was particularly concentrated in the pith rays of S. pinnata and in the phloem cells of A. racemosus and N. amplexicaulis. CONCLUSIONS This study shows that Astragalus, Stanleya and Neptunia have different selenium-handling physiologies, with different mechanisms for translocation and storage of excess selenium. Important dissimilarities among the three analysed species suggest that selenium hyperaccumulation has probably evolved multiple times over under similar environmental pressures in the US and Australia.
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Affiliation(s)
- Antony van der Ent
- Laboratory of Genetics, Wageningen University and Research, Wageningen, The Netherlands
- Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland, Australia
- Université de Lorraine, INRAE, LSE, F-54000 Nancy, France
| | - Mirko Salinitro
- Department of Biological Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | | | | | - Sofia Montanari
- Department of Biological Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Annalisa Tassoni
- Department of Biological Geological and Environmental Sciences, University of Bologna, Bologna, Italy
| | - Michela Schiavon
- Department of Agricultural, Forest and Food Sciences (DISAFA), University of Turin, Turin, Italy
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Klofac D, Antosovsky J, Skarpa P. Effect of Zinc Foliar Fertilization Alone and Combined with Trehalose on Maize ( Zea mays L.) Growth under the Drought. PLANTS (BASEL, SWITZERLAND) 2023; 12:2539. [PMID: 37447100 DOI: 10.3390/plants12132539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 06/22/2023] [Accepted: 07/01/2023] [Indexed: 07/15/2023]
Abstract
Maize (Zea mays L.) is one of the most widely grown cereals in the world. Its cultivation is affected by abiotic stress caused by climate change, in particular, drought. Zinc (Zn) supplied by foliar nutrition can increase plant resistance to water stress by enhancing physiological and enzymatic antioxidant defence mechanisms. One of the possibilities to reduce the effect of drought on plant production is also the utilization of trehalose. In order to confirm the effect of the foliar application of selected forms of Zn (0.1% w/v solution)-zinc oxide micro- (ZnO) and nanoparticles (ZnONP), zinc sulphate (ZnSO4) and zinc chelate (ZnEDTA)-a pot experiment in controlled conditions was conducted in combination with trehalose (1% w/v solution) on selected growth parameters of maize exposed to the drought stress. A significant effect of coapplication of Zn and trehalose on chlorophyll content, chlorophyll fluorescence parameters, root electrical capacity, weight of maize aboveground biomass (AGB) and Zn content in AGB was found. At the same time, the hypothesis of a positive effect of carbohydrates on increasing the uptake of foliar-applied Zn was confirmed, especially for the ZnEDTA and ZnSO4. This paper presents the first empirical evidence of the trehalose addition to sprays for zinc foliar fertilization of maize proving to be an effective way of increasing the resistance of maize grown under drought stress conditions.
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Affiliation(s)
- Daniel Klofac
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriScience, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic
| | - Jiri Antosovsky
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriScience, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic
| | - Petr Skarpa
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriScience, Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic
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Abdul-Rahman Owied O, Muslim Guda MA, Imad Taher H, Ali Abdulhussein MA. Plants anatomically engineered by nanomaterials. BIONATURA 2023; 8:1-11. [DOI: 10.21931/rb/2023.08.02.44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
Anatomical characteristics are essential in determining the stress that affects plants. In addition, they provided a piece of evidence for environmental pollution. The increasing use of nanomaterials (EnNos) in industries, medicine, agriculture, and all fields. Nanomaterials also have many uses as a new science; they have toxic effects that have not been studied well. Therefore, this research was interested in recording recent studies on (EnNos) and their impact on the anatomical characteristics of plants.
Moreover, the possibility of using anatomical characteristics as evidence of nano contamination (nanotoxicity) in plants comprises a crucial living component of the ecosystem. Studies on the effect of EnNos (carbon) on plant anatomy indicated that excess EnNos content affects the anatomical structure of the plant from the vital structures of the root, stem and leaves. Toxicological effect on xylem and phylum vessels from toxicological studies to date, Toxicological effects on EnNos of various kinds can be toxic if they are not bound to a substrate or freely circulating in living systems. Different types of EnNos, behavior, and plant capacity generate different paths. Moreover, different, or even conflicting, conclusions have been drawn from most studies on the interactions of EnNos with plants. Therefore, this paper comprehensively reviews studies on different types of carbon EnNos and their interactions with different plant species at the anatomical responses.
Keywords: Anatomical characteristics, nanomaterials, nanotoxicity, Fullerene and Carbon Nanotubes
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Affiliation(s)
| | | | - Hawraa Imad Taher
- Department of Horticulture, Faculty of Agriculture, University of Kufa, Najaf, Iraq
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Lin XY, Liang JH, Jiao DD, Chen JX, Wang N, Ma LQ, Zhou D, Li HB. Using Fe biofortification strategies to reduce both Ni concentration and oral bioavailability for rice with high Ni. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131367. [PMID: 37030226 DOI: 10.1016/j.jhazmat.2023.131367] [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: 02/07/2023] [Revised: 03/13/2023] [Accepted: 04/03/2023] [Indexed: 05/03/2023]
Abstract
Due to naturally high Ni or soil Ni contamination, high Ni concentrations are reported in rice, raising a need to reduce rice Ni exposure risk. Here, reduction in rice Ni concentration and Ni oral bioavailability with rice Fe biofortification and dietary Fe supplementation was assessed using rice cultivation and mouse bioassays. Results showed that for rice grown in a high geogenic Ni soil, increases in rice Fe concentration from ∼10.0 to ∼30.0 μg g-1 with foliar EDTA-FeNa application led to decreases in Ni concentration from ∼4.0 to ∼1.0 μg g-1 due to inhibited Ni transport from shoot to grains via down-regulated Fe transporters. When fed to mice, Fe-biofortified rice was significantly (p < 0.01) lower in Ni oral bioavailability (59.9 ± 11.9% vs. 77.8 ± 15.1%; 42.4 ± 9.81% vs. 70.4 ± 6.81%). Dietary amendment of exogenous Fe supplements to two Ni-contaminated rice samples at 10-40 μg Fe g-1 also significantly (p < 0.05) reduced Ni RBA from 91.7% to 61.0-69.5% and from 77.4% to 29.2-55.2% due to down-regulation of duodenal Fe transporter expression. Results suggest that the Fe-based strategies not only reduced rice Ni concentration but also lowered rice Ni oral bioavailability, playing dual roles in reducing rice-Ni exposure.
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Affiliation(s)
- Xin-Ying Lin
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Jia-Hui Liang
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Duo-Duo Jiao
- College of Resources and Environmental Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, Fujian, China
| | - Jun-Xiu Chen
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Ning Wang
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs of the People's Republic of China, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu, China
| | - Lena Q Ma
- Institute of Soil and Water Resources and Environmental Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Hong-Bo Li
- State Key Laboratory of Pollution Control and Resource Reuse, Jiangsu Key Laboratory of Vehicle Emissions Control, School of the Environment, Nanjing University, Nanjing 210023, China.
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Cui L, Chen Y, Liu J, Zhang Q, Xu L, Yang Z. Spraying Zinc Sulfate to Reveal the Mechanism through the Glutathione Metabolic Pathway Regulates the Cadmium Tolerance of Seashore Paspalum ( Paspalum vaginatum Swartz). PLANTS (BASEL, SWITZERLAND) 2023; 12:1982. [PMID: 37653899 PMCID: PMC10221796 DOI: 10.3390/plants12101982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/30/2023] [Accepted: 05/09/2023] [Indexed: 09/02/2023]
Abstract
Cadmium (Cd) is considered to be one of the most toxic metals, causing serious harm to plants' growth and humans' health. Therefore, it is necessary to study simple, practical, and environmentally friendly methods to reduce its toxicity. Until now, people have applied zinc sulfate to improve the Cd tolerance of plants. However, related studies have mainly focused on physiological and biochemical aspects, with a lack of in-depth molecular mechanism research. In this study, we sprayed high (40 mM) and low (2.5 mM) concentrations of zinc sulfate on seashore paspalum (Paspalum vaginatum Swartz) plants under 0.5 mM Cd stress. Transcriptome sequencing and physiological indicators were used to reveal the mechanism of Cd tolerance. Compared with the control treatment, we found that zinc sulfate decreased the content of Cd2+ by 57.03-73.39%, and that the transfer coefficient of Cd decreased by 58.91-75.25% in different parts of plants. In addition, our results indicate that the antioxidant capacity of plants was improved, with marked increases in the glutathione content and the activity levels of glutathione reductase (GR), glutathione S-transferase (GST), and other enzymes. Transcriptome sequencing showed that the differentially expressed genes in both the 0.5 Zn and 40 Zn treatments were mainly genes encoding GST. This study suggests that genes encoding GST in the glutathione pathway may play an important role in regulating the Cd tolerance of seashore paspalum. Furthermore, the present study provides a theoretical reference for the regulation mechanism caused by zinc sulfate spraying to improve plants' Cd tolerance.
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Affiliation(s)
- Liwen Cui
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | | | | | | | | | - Zhimin Yang
- College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
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Medas D, Meneghini C, Pusceddu C, Carlomagno I, Aquilanti G, Dore E, Murgia V, Podda F, Rimondi V, Vacca S, Wanty RB, De Giudici G. Plant-minerals-water interactions: An investigation on Juncus acutus exposed to different Zn sources. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 870:161931. [PMID: 36736402 DOI: 10.1016/j.scitotenv.2023.161931] [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: 10/17/2022] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
Juncus acutus has been proposed as a suitable species for the design of phytoremediation plans. This research aimed to investigate the role played by rhizosphere minerals and water composition on Zn transformations and dynamics in the rhizosphere-plant system of J. acutus exposed to different Zn sources. Rhizobox experiments were conducted using three different growing substrates (Zn from 137 to 20,400 mg/kg), and two irrigation lines (Zn 0.05 and 180 mg/l). The plant growth was affected by the substrate type, whereas the Zn content in the water did not significantly influence the plant height for a specific substrate. J. acutus accumulated Zn mainly in roots (up to 10,000 mg/kg dw); the metal supply by the water led to variable increases in the total Zn concentration in the vegetal organs, and different Zn distributions both controlled by the rhizosphere mineral composition. Different Zn complexation mechanisms were observed, mainly driven by cysteine and citrate compounds, whose amount increased linearly with Zn content in water, but differently for each of the investigated systems. Our study contributes to gain a more complete picture of the Zn pathway in the rhizosphere-plant system of J. acutus. We demonstrated that this vegetal species is not only capable of developing site-specific tolerance mechanisms, but it is also capable to differently modulate Zn transformation when Zn is additionally supplied by watering. These findings are necessary for predicting the fate of Zn during phytoremediation of sites characterized by specific mineralogical properties and subject to water chemical variations.
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Affiliation(s)
- Daniela Medas
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
| | - Carlo Meneghini
- Department of Sciences, University of Roma Tre, Rome, Italy.
| | - Claudia Pusceddu
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy
| | | | | | - Elisabetta Dore
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
| | | | - Francesca Podda
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
| | - Valentina Rimondi
- Department of Earth Sciences, University of Florence, Florence, Italy; CNR-Institute of Geosciences and Earth Resources, Florence, Italy.
| | - Salvatore Vacca
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
| | - Richard B Wanty
- Colorado School of Mines, Department of Geology and Geological Engineering, Golden, CO 80401, USA.
| | - Giovanni De Giudici
- Department of Chemical and Geological Science, University of Cagliari, Cagliari, Italy.
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Daccak D, Lidon FC, Coelho ARF, Luís IC, Marques AC, Pessoa CC, Brito MDG, Kullberg JC, Ramalho JC, Silva MJ, Rodrigues AP, Campos PS, Pais IP, Semedo JN, Silva MM, Legoinha P, Galhano C, Simões M, Pessoa MF, Reboredo FH. Assessment of Physicochemical Parameters in Two Winegrapes Varieties after Foliar Application of ZnSO 4 and ZnO. PLANTS (BASEL, SWITZERLAND) 2023; 12:1426. [PMID: 37050051 PMCID: PMC10097101 DOI: 10.3390/plants12071426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 03/17/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
One-third of the world's population is suffering from "hidden hunger" due to micronutrient deficiency. Zinc is acquired through diet, leading its deficiency to the development of disorders such as retarded growth, anorexia, infections, and hypogeusia. Accordingly, this study aimed to develop an agronomic workflow for Zn biofortification on two red winegrapes varieties (cv. Castelão and Syrah) and determine the physicochemical implications for winemaking. Both varieties produced in Setúbal (Portugal) were submitted to four foliar applications of ZnSO4 or ZnO (900 and 1350 g ha-1, respectively), during the production cycle. At harvest, Zn biofortification reached a 4.3- and 2.3-fold increase with ZnO 1350 g ha-1 in Castelão and Syrah, respectively (although, with ZnSO4 1350 g ha-1 both varieties revealed an increase in Zn concentration). On a physiological basis, lower values of NDVI were found in the biofortified grapes, although not reflected in photosynthetic parameters with cv. Syrah shows even a potential benefit with the use of Zn fertilizers. Regarding physical and chemical parameters (density, total soluble solids, dry weight, and color), relative to the control no significant changes in both varieties were observed, being suitable for winemaking. It was concluded that ZnSO4 and ZnO foliar fertilization efficiently increased Zn concentration on both varieties without a negative impact on quality, but cv. Castelão showed a better index of Zn biofortification and pointed to a potentially higher quality for winemaking.
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Affiliation(s)
- Diana Daccak
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Fernando C. Lidon
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Ana Rita F. Coelho
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Inês Carmo Luís
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Ana Coelho Marques
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Cláudia Campos Pessoa
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Maria da Graça Brito
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - José Carlos Kullberg
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - José C. Ramalho
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
- Plant Stress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Laboratório Associado TERRA, Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Avenida da República, 2784-505 Oeiras, Portugal;
- Plant Stress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Laboratório Associado TERRA, Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Maria José Silva
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
- Plant Stress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Laboratório Associado TERRA, Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Avenida da República, 2784-505 Oeiras, Portugal;
- Plant Stress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Laboratório Associado TERRA, Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Ana Paula Rodrigues
- Plant Stress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Laboratório Associado TERRA, Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Quinta do Marquês, Avenida da República, 2784-505 Oeiras, Portugal;
- Plant Stress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Laboratório Associado TERRA, Instituto Superior Agronomia (ISA), Universidade de Lisboa (ULisboa), Tapada da Ajuda, 1349-017 Lisboa, Portugal
| | - Paula Scotti Campos
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Quinta do Marquês, Avenida da República, 2780-157 Oeiras, Portugal
| | - Isabel P. Pais
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Quinta do Marquês, Avenida da República, 2780-157 Oeiras, Portugal
| | - José N. Semedo
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
- Instituto Nacional de Investigação Agrária e Veterinária, I.P. (INIAV), Quinta do Marquês, Avenida da República, 2780-157 Oeiras, Portugal
| | - Maria Manuela Silva
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Paulo Legoinha
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Carlos Galhano
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Manuela Simões
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Maria Fernanda Pessoa
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
| | - Fernando H. Reboredo
- Departamento de Ciências da Terra, Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (F.C.L.); (A.R.F.C.); (I.C.L.); (A.C.M.); (C.C.P.); (M.d.G.B.); (J.C.K.); (M.M.S.); (P.L.); (C.G.); (M.S.); (M.F.P.); (F.H.R.)
- Centro de Investigação de Geobiociências, Geoengenharias e Geotecnologias (GeoBioTec), Faculdade de Ciências e Tecnologia, Campus da Caparica, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; (J.C.R.); (M.J.S.); (P.S.C.); (I.P.P.); (J.N.S.)
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10
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Li F, Yao X, Lu L, Jiao Y. Preparation of Zn-Gly and Se-Gly and Their Effects on the Nutritional Quality of Tea ( Camellia sinensis). PLANTS (BASEL, SWITZERLAND) 2023; 12:1049. [PMID: 36903910 PMCID: PMC10005280 DOI: 10.3390/plants12051049] [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: 02/01/2023] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Micronutrient malnutrition affects millions of people due to a lack of Zn and Se. METHODS The process conditions for the manufacture of glycine-chelated sodium selenite (Se-Gly) and zinc sulfate heptahydrate (Zn-Gly) were studied. The effects of ligand concentration, pH, reaction ratio, reaction temperature, and reaction time on fertilizer stability were assessed. The effects of Zn-Gly and Se-Gly on tea plants were determined. RESULTS Orthogonal experiments showed that the optimal preparation conditions for Zn-Gly (75.80 % Zn chelation rate) were pH 6.0, ligand concentration 4 %, reaction ratio 1:2, reaction time 120 min, reaction temperature 70 ℃. The optimal preparation conditions for Se-Gly (56.75 % Se chelation rate) were pH 6.0, ligand concentration 10%, reaction ratio 2:1, reaction time 40 min, temperature 50 ℃. Each chelate was completely soluble in water and verified by infrared spectroscopy and ultraviolet spectroscopy. CONCLUSIONS Zn-Gly and Se-Gly increased the Zn and Se content in tea plants, and foliar application was more effective than soil application. Combined application of Zn-Gly and Se-Gly was more effective than Zn-Gly or Se-Gly alone. Our findings suggest that Zn-Gly and Se-Gly provide a convenient method of addressing human Zn and Se deficiency.
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Affiliation(s)
- Feixia Li
- The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Science, Guizhou University, Guiyang 550025, China
| | - Xinzhuan Yao
- College of Tea Science, Institute of Plant Health & Medicine, Guizhou University, Guiyang 550025, China
| | - Litang Lu
- The Key Laboratory of Plant Resources Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), College of Life Science, Guizhou University, Guiyang 550025, China
- College of Tea Science, Institute of Plant Health & Medicine, Guizhou University, Guiyang 550025, China
| | - Yujie Jiao
- College of Tea Science, Institute of Plant Health & Medicine, Guizhou University, Guiyang 550025, China
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11
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Lian J, Cheng L, Zhai X, Wu R, Huang X, Chen D, Pan J, Shohag M, Xin X, Ren X, He Z, Yang X. Zinc glycerolate (Glyzinc): A novel foliar fertilizer for zinc biofortification and cadmium reduction in wheat (Triticum aestivum L.). Food Chem 2023; 402:134290. [DOI: 10.1016/j.foodchem.2022.134290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 08/18/2022] [Accepted: 09/13/2022] [Indexed: 10/14/2022]
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12
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Sun M, Zhao C, Shang H, Hao Y, Han L, Qian K, White JC, Ma C, Xing B. ZnO quantum dots outperform nanoscale and bulk particles for enhancing tomato (Solanum lycopersicum) growth and nutritional values. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 857:159330. [PMID: 36228785 DOI: 10.1016/j.scitotenv.2022.159330] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 10/05/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Tomato (Solanum lycopersicum) seedlings were exposed by foliar or root applications to Zn in different nanoscale and non-nanoscale forms (40 mg Zn/L) under hydroponic conditions for 15 days. Under foliar exposure, ZnO QDs significantly promoted tomato growth, while ZnO NPs and BPs had lower impacts. ZnO QDs increased fresh weight and plant height by 42.02 % and 21.10 % relative to the untreated controls, respectively. The ionic control (ZnSO4·7H2O, 176.6 mg/L) decreased fresh weight by 39.31 %. ZnO QDs also significantly increased the Chla/Chlb ratio, as well as carotenoids and protein content by 7.70 %, 8.90 % and 26.33 %, respectively, over the untreated controls, suggesting improvement in seedling photosynthetic performance. Antioxidant enzyme (POD, PPO and PAL) activities in ZnO QDs treated shoots were significantly decreased by 31.1 %, 17.8 % and 48.3 %, respectively, indicating no overt oxidative damage from exposure. Importantly, the translocation factor of Zn (TFZn) in the foliar exposure of the ZnO QDs treatment was 73.2 %, 97.1 % and 276.9 % greater than the NPs, BPs, and ionic controls, respectively. Overall, these findings clearly demonstrate that foliar spray of nanoscale nutrients at the appropriate concentration and size can significantly increase crop growth and be a sustainable approach to nano-enabled agriculture.
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Affiliation(s)
- Min Sun
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Chenchen Zhao
- College of Plant Protection, Southwest University, Chongqing 400715, China
| | - Heping Shang
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yi Hao
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Lanfang Han
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China
| | - Kun Qian
- College of Plant Protection, Southwest University, Chongqing 400715, China.
| | - Jason C White
- The Connecticut Agricultural Experiment Station, New Haven, CT 06504, USA
| | - Chuanxin Ma
- Key Laboratory for City Cluster Environmental Safety and Green Development of the Ministry of Education, School of Ecology, Environment and Resources, Guangdong University of Technology, Guangzhou 510006, China; Guangdong Provincial Key Laboratory of Water Quality Improvement and Ecological Restoration for Watersheds, Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts Amherst, Amherst, MA 01003, USA
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13
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Srithaworn M, Jaroenthanyakorn J, Tangjitjaroenkun J, Suriyachadkun C, Chunhachart O. Zinc solubilizing bacteria and their potential as bioinoculant for growth promotion of green soybean ( Glycine max L. Merr.). PeerJ 2023; 11:e15128. [PMID: 37193032 PMCID: PMC10182760 DOI: 10.7717/peerj.15128] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 03/04/2023] [Indexed: 05/18/2023] Open
Abstract
Zinc-solubilizing rhizobacteria can convert insoluble zinc to an accessible form and increase Zn bioavailability in soil, which help mitigate Zn deficiency in crops. In this work, 121 bacterial isolates were isolated from the rhizosphere soils of peanuts, sweet potatoes, and cassava, and their capability to solubilize Zn was evaluated using Bunt and Rovira's agar containing 0.1% ZnO and ZnCO3. Among these isolates, six showed high Zn solubilization efficiencies ranging from 1.32 to 2.84 and 1.93 to 2.27 on the medium supplemented with 0.1% ZnO and ZnCO3, respectively. In a quantitative analysis of soluble Zn in liquid medium supplemented with 0.1% ZnO, the isolate KAH109 showed the maximum soluble zinc concentration of 62.89 mg L-1. Among the six isolates, the isolate KAH109 also produced the most indole-3-acetic acid (IAA) at 33.44 mg L-1, whereas the isolate KEX505 also produced IAA at 17.24 mg L-1 along with showing zinc and potassium solubilization activity. These strains were identified as Priestia megaterium KAH109 and Priestia aryabhattai KEX505 based on 16S rDNA sequence analysis. In a greenhouse experiment conducted in Nakhon Pathom, Thailand the ability of P. megaterium KAH109 and P. aryabhattai KEX505 to stimulate the growth and production of green soybeans was examined. The results revealed that inoculation with P. megaterium KAH109 and P. aryabhattai KEX505 considerably increased plant dry weight by 26.96% and 8.79%, respectively, and the number of grains per plant by 48.97% and 35.29% when compared to those of the uninoculated control. According to these results, both strains can be considered as a potential zinc solubilizing bioinoculant to promote the growth and production yield of green soybeans.
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Affiliation(s)
- Moltira Srithaworn
- Division of Microbiology, Department of Science and Bioinnovation, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, Thailand
| | - Jieb Jaroenthanyakorn
- Division of Microbiology, Department of Science and Bioinnovation, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, Thailand
| | - Janpen Tangjitjaroenkun
- Department of Resources and Environment, Faculty of Science at Sriracha, Kasetsart University Sriracha Campus, Chonburi, Thailand
| | - Chanwit Suriyachadkun
- Thailand Bioresource Research Center, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Patumthani, Thailand
| | - Orawan Chunhachart
- Division of Microbiology, Department of Science and Bioinnovation, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom, Thailand
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14
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Sangeetha VJ, Dutta S, Moses JA, Anandharamakrishnan C. Zinc nutrition and human health: Overview and implications. EFOOD 2022. [DOI: 10.1002/efd2.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- V. J. Sangeetha
- Computational Modeling and Nanoscale Processing Unit National Institute of Food Technology, Entrepreneurship and Management – Thanjavur, Ministry of Food Processing Industries, Government of India Thanjavur India
| | - Sayantani Dutta
- Computational Modeling and Nanoscale Processing Unit National Institute of Food Technology, Entrepreneurship and Management – Thanjavur, Ministry of Food Processing Industries, Government of India Thanjavur India
| | - J. A. Moses
- Computational Modeling and Nanoscale Processing Unit National Institute of Food Technology, Entrepreneurship and Management – Thanjavur, Ministry of Food Processing Industries, Government of India Thanjavur India
| | - C. Anandharamakrishnan
- Computational Modeling and Nanoscale Processing Unit National Institute of Food Technology, Entrepreneurship and Management – Thanjavur, Ministry of Food Processing Industries, Government of India Thanjavur India
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15
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Tryfon P, Kamou NN, Ntalli N, Mourdikoudis S, Karamanoli K, Karfaridis D, Menkissoglu-Spiroudi U, Dendrinou-Samara C. Coated Cu-doped ZnO and Cu nanoparticles as control agents against plant pathogenic fungi and nematodes. NANOIMPACT 2022; 28:100430. [PMID: 36206943 DOI: 10.1016/j.impact.2022.100430] [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: 07/27/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
In the current study, coated copper nanoparticles with polyethylene glycol 8000 (Cu@PEG NPs) and copper-doped zinc oxide nanoparticles with diethylene glycol (Cu-doped ZnO@DEG NPs) have been synthesized via solvothermal and microwave-assisted process, physicochemical characterized, and studied as nano-fungicides and nano-nematicides. Spheroidal Cu-doped ZnO@DEG NPs and urchin-like Cu@PEG NPs have been isolated with average crystallite sizes of 12 and 21 nm, respectively. The Cu doping (11.3 wt%) in ZnO lattice (88.7 wt%) was investigated by Rietveld refinement analysis and confirmed by X-ray Diffraction (XRD) and X-ray Photoelectron Spectroscopy (XPS). The Cu-doped ZnO@DEG and Cu@PEG NPs revealed a growth inhibition of fungi Botrytis cinerea (B. cinerea) and Sclerotinia sclerotiorum (S. sclerotiorum) and nematode paralysis of Meloidogyne javanica in a dose-dependent manner. Cu-doped ZnO@DEG NPs were more effective against M. javanica (EC50 = 2.60 μg/mL) than the Cu@PEG NPs (EC50 = 25 μg/mL). In contrast, the antifungal activity was approximately similar for both NPs, with EC50 values at 310 and 327 μg/mL against B. cinerea, respectively, and 260 and 278 μg/mL against S. sclerotiorum, respectively. Lettuce (Lactuca sativa) plants were inoculated with S. sclerotiorum or M. javanica and sprayed with either Cu-doped ZnO@DEG NPs or Cu@PEG NPs. The antifungal effect was evaluated based on a disease index (DI), and nematicidal activity was assessed based on the total number of galls and nematode females per root gram. NPs successfully inhibited the growth of both pathogens without causing phytotoxicity on lettuce. The DI were significantly decreased as compared to the positive control (DI = 5.2), estimated equal to 1.7, 2.9 and 2.5 for Cu@PEG NPs, Cu-doped ZnO@DEG NPs and the chemical control (KOCIDE 2000), respectively. The reduction in galling and population of M. javanica ranged from 39.32% to 32.29%, statistically like chemical control. The treatment of lettuce plants with Cu-doped ZnO@DEG NPs increased the leaf net photosynthetic value at 4.60 and 6.66 μmol CO2-2 s-1 in plants inoculated with S. sclerotiorum and M. javanica, respectively, as compared to the control (3.00 μmol CO2-2 s-1). The antioxidant capacity of NPs treated lettuce plants was evaluated as 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity in leaf extracts. Plants inoculated with S. sclerotiorum and sprayed with Cu-doped ZnO@DEG and Cu@PEG NPs, exhibited a 34.22% and 32.70% increase in antioxidant capacity, respectively, higher than the control. Similarly, an increase in antioxidant capacity was measured (39.49 and 37.36%) in lettuce inoculated with M. javanica and treated with Cu-doped ZnO@DEG and Cu@PEG NPs, respectively. Moreover, an increase of phenolic compounds in lettuce leaf tissue treated with NPs was measured as compared to the control. Overall, foliar applied Cu and Cu-doped ZnO NPs could be a promising tool to control phytopathogenic fungi and nematodes contributing to sustainability of agri-food sector.
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Affiliation(s)
- Panagiota Tryfon
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Nathalie N Kamou
- Pesticide Science Laboratory, School of Agriculture, Faculty of Agriculture Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Nikoletta Ntalli
- Analytical Chemistry and Pesticides Laboratory, Department of Agriculture Crop Production and Rural Environment, University of Thessaly, Volos, Greece
| | - Stefanos Mourdikoudis
- UCL Healthcare Biomagnetic and Nanomaterials Laboratories, 21 Albemarle Street, London W1S 4BS, United Kingdom; Biophysics Group, Department of Physics and Astronomy, University College London (UCL), London, United Kingdom
| | - Katerina Karamanoli
- Laboratory of Agricultural Chemistry, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Dimitrios Karfaridis
- Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - 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, Thessaloniki 54124, Greece.
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16
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Dhaliwal SS, Sharma V, Shukla AK, Kaur M, Verma V, Sandhu PS, Alsuhaibani AM, Gaber A, Hossain A. Biofortification of oil quality, yield, and nutrient uptake in Indian mustard ( Brassica juncea L.) by foliar application of boron and nitrogen. FRONTIERS IN PLANT SCIENCE 2022; 13:976391. [PMID: 36092426 PMCID: PMC9460627 DOI: 10.3389/fpls.2022.976391] [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: 06/23/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
Indian mustard (Brassica juncea L.) is an essential oilseed crop that offers important nutrients to human beings. However, the concurrent micronutrient deficiencies including boron (B), sulfur (S), and nitrogen (N) could pose a significant threat to public health. Therefore, this study was conducted at the Punjab Agricultural University, Ludhiana, with nine treatments, i.e., T1-Control (recommended NPK only), T2- borax (0.5%) at flowering, T3-borax (1.0%) at flowering,T4- borax (0.5%) + urea (1.0%) at flowering,T5-borax (1.0%) + urea (1.0%) at flowering, T6-borax (0.5%) at flowering + capsule formation, T7-borax (1.0%) at flowering + capsule formation, T8-borax (0.5%) + urea (1.0%) at flowering + capsule formation, T9-borax (1.0%) + urea (1.0%) at flowering + Capsule formation, replicated three times in a randomized block design for 2 years (2020-2021 and 2021-2022). The foliar application of borax (1.0%) + urea (1.0%) at the flowering and capsule formation stage (treatment T9) was highly efficient in increasing food quality parameters such as crude fiber, total soluble solids (TSS), and protein content with maximum values of 3.77, 24.9, and 27.53%, respectively. Also, maximum yields of seed as well as stover for treatment T9 were 1.376 and 6.625 kg ha-1, respectively. Similarly, the results for B, S, and N concentrations in seed (27.71 mg kg-1, 17.69 mg kg-1, and 2.35%), as well as stover (25.92 mg kg-1, 17.31 mg kg-1, and 0.33%), were maximum in treatment T9. Also, B, S, and N uptake by seed (38.18 g ha-1, 24.40 g ha-1, and 32.05 Kg ha-1) and stover (172.55 g ha-1, 115.44 g ha-1, and 21.99 Kg ha-1) were maximum for the treatment T9 involving borax (1.0%) + urea (1.0%) at the flowering and capsule formation stage. Whereas, the concentration and uptake decreased in the treatments involving the sole application of borax and urea. Therefore, the application of borax (1.0%) and urea (1.0%) at the flowering and capsule formation stage significantly improved the quality parameters, seed and stover yield, nutrient concentration, and uptake over control and could be used to alleviate the B, S, and N deficiency in Indian mustard.
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Affiliation(s)
| | - Vivek Sharma
- Department of Soil Science, Punjab Agricultural University, Ludhiana, India
| | - Arvind Kumar Shukla
- Indian Council of Agricultural Research (ICAR) Indian Institute of Soil Science, Bhopal, India
| | - Manmeet Kaur
- Department of Soil Science, Punjab Agricultural University, Ludhiana, India
| | - Vibha Verma
- Department of Soil Science, Punjab Agricultural University, Ludhiana, India
| | - Prabhjodh Singh Sandhu
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | - Amnah Mohammed Alsuhaibani
- Department of Physical Sport Science, College of Education, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Ahmed Gaber
- Department of Biology, College of Science, Taif University, Taif, Saudi Arabia
| | - Akbar Hossain
- Department of Agronomy, Bangladesh Wheat and Maize Research Institute, Dinajpur, Bangladesh
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17
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Xu M, Liu M, Si L, Ma Q, Sun T, Wang J, Chen K, Wang X, Wu L. Spraying high concentrations of chelated zinc enhances zinc biofortification in wheat grain. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:3590-3598. [PMID: 34862638 DOI: 10.1002/jsfa.11705] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 11/11/2021] [Accepted: 12/04/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Foliar application of highly concentrated ZnSO4 fertilizer improves Zn biofortification in wheat grains. However, excess ZnSO4 ·7H2 O concentration (≥5 g kg-1 , w v-1 ) has been associated with leaf burn and yield loss, necessitating Zn sources with a high threshold concentration. The aim of this study, based on a 2 year field experiment conducted on wheat cultivated in acidic and alkaline soil, was to identify a suitable Zn formulation with a high Zn concentration or efficient adjuvant to achieve optimal Zn biofortification levels without compromising agronomic performance. RESULTS There was a continued increase in the Zn concentration in wheat grains and a decrease in grain yield with an increase in the concentration of the Zn foliar sprays in both soil types examined. Wheats treated with chelated Zn foliar sprays - Zn glycine chelate (ZnGly) and Zn-ethylenediaminetetraacetic acid (ZnEDTA) - had less foliar injury than those treated with unchelated Zn fertilizers. Furthermore, irrespective of wheat cultivars and soil types, ZnEDTA applied to wheat at a concentration of 10 g kg-1 achieved the highest grain Zn concentration without negatively affecting the wheat performance. Adjuvant type and concentration caused no significant variation in grain Zn concentration. CONCLUSION Overall, without foliar burn, wheat treated with 10 g kg-1 ZnEDTA foliar spray had the best performance with regard to grain Zn concentration and grain yield, which could have considerable implications for Zn biofortification of wheat grain. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Meng Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Mengjiao Liu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Linlin Si
- Institute of Environment and Resource & Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Qingxu Ma
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Tao Sun
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Jun Wang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Kaijun Chen
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Xiangjie Wang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Lianghuan Wu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
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18
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Rani S, Kumar P, Dahiya P, Dang AS, Suneja P. Biogenic Synthesis of Zinc Nanoparticles, Their Applications, and Toxicity Prospects. Front Microbiol 2022; 13:824427. [PMID: 35756000 PMCID: PMC9226681 DOI: 10.3389/fmicb.2022.824427] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 04/28/2022] [Indexed: 12/16/2022] Open
Abstract
Nanofertilizers effectively deliver the micronutrients besides reducing the phytotoxicity and environmental damage associated with chemical fertilizers. Zinc, an essential micronutrient, is significant for chloroplast development, activation of certain enzymes, and primary metabolism. Nano zinc oxide (ZnO) is the most widely used zinc nanoparticle. Concerns regarding the toxicity of conventional physical and chemical methods of synthesizing the nanoparticles have generated the need for a green approach. It involves the biogenic synthesis of metallic nanoparticles using plants and microorganisms. Microbe-mediated biogenic synthesis of metallic nanoparticles is a bottom-up approach in which the functional biomolecules of microbial supernatant reduce the metal ions into its nanoparticles. This review discusses the biological synthesis of nano-ZnO from microorganisms and related aspects such as the mechanism of synthesis, factors affecting the same, methods of application, along with their role in conferring drought stress tolerance to the plants and challenges involved in their large-scale synthesis and applications.
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Affiliation(s)
- Simran Rani
- Plant-Microbe Interaction Laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak, India
| | - Pradeep Kumar
- Plant-Microbe Interaction Laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak, India
| | - Priyanka Dahiya
- Plant-Microbe Interaction Laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak, India
| | - Amita Suneja Dang
- Centre for Medical Biotechnology, Maharshi Dayanand University, Rohtak, India
| | - Pooja Suneja
- Plant-Microbe Interaction Laboratory, Department of Microbiology, Maharshi Dayanand University, Rohtak, India
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19
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Amaral DC, Brown PH. Foliar Application of an Inositol-Based Plant Biostimulant Boosts Zinc Accumulation in Wheat Grains: A μ-X-Ray Fluorescence Case Study. FRONTIERS IN PLANT SCIENCE 2022; 13:837695. [PMID: 35463431 PMCID: PMC9020830 DOI: 10.3389/fpls.2022.837695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/31/2022] [Indexed: 05/25/2023]
Abstract
There has been much interest in the incorporation of organic molecules or biostimulants into foliar fertilizers with the rationalization that these compounds will enhance the uptake, or subsequent mobility of the applied nutrient. The objective of this research was to investigate the effects of an inositol-based plant stimulant on the mobility and accumulation of foliar-applied zinc (Zn) in wheat plants (Triticum aestivum L.). High-resolution elemental imaging with micro-X-ray fluorescence (μ-XRF) was utilized to examine Zn distribution within the vascular bundle of the leaf and whole grains. The inclusion of myo-inositol with Zinc sulfate, significantly increased Zn concentration in shoots in contrast to untreated controls and Zn sulfate applied alone. Foliar Zn treated plants increased Zn in grains by 5-25% with myo-inositol plus Zn treated plants significantly increasing grain Zn concentration compared to both Zn treated and non-treated controls. XRF imaging revealed Zn enrichment in the bran layer and germ, with a very low Zn concentration present in the endosperm. Plants treated with Zn plus myo-inositol showed an enhanced and uniform distribution of Zn throughout the bran layer and germ with an increased concentration in the endosperm. While our data suggest that foliar application of myo-inositol in combination with Zn may be a promising strategy to increase the absorption and mobility of Zn in the plant tissue and subsequently to enhance Zn accumulation in grains, further research is needed to clarify the mechanisms by which myo-inositol affects plant metabolism and nutrient mobility.
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Affiliation(s)
- Douglas C. Amaral
- Division of Agriculture and Natural Resources, University of California, Davis, Davis, CA, United States
| | - Patrick H. Brown
- Department of Plant Sciences, University of California, Davis, Davis, CA, United States
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20
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Li C, Wang L, Wu J, Blamey FPC, Wang N, Chen Y, Ye Y, Wang L, Paterson DJ, Read TL, Wang P, Lombi E, Wang Y, Kopittke PM. Translocation of Foliar Absorbed Zn in Sunflower ( Helianthus annuus) Leaves. FRONTIERS IN PLANT SCIENCE 2022; 13:757048. [PMID: 35310668 PMCID: PMC8924476 DOI: 10.3389/fpls.2022.757048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Foliar zinc (Zn) fertilization is an important approach for overcoming crop Zn deficiency, yet little is known regarding the subsequent translocation of this foliar-applied Zn. Using synchrotron-based X-ray fluorescence microscopy (XFM) and transcriptome analysis, the present study examined the translocation of foliar absorbed Zn in sunflower (Helianthus annuus) leaves. Although bulk analyses showed that there had been minimal translocation of the absorbed Zn out of the leaf within 7 days, in situ analyses showed that the distribution of Zn in the leaf had changed with time. Specifically, when Zn was applied to the leaf for 0.5 h and then removed, Zn primarily accumulated within the upper and lower epidermal layers (when examined after 3 h), but when examined after 24 h, the Zn had moved to the vascular tissues. Transcriptome analyses identified a range of genes involved in stress response, cell wall reinforcement, and binding that were initially upregulated following foliar Zn application, whereas they were downregulated after 24 h. These observations suggest that foliar Zn application caused rapid stress to the leaf, with the initial Zn accumulation in the epidermis as a detoxification strategy, but once this stress decreased, Zn was then moved to the vascular tissues. Overall, this study has shown that despite foliar Zn application causing rapid stress to the leaf and that most of the Zn stayed within the leaf over 7 days, the distribution of Zn in the leaf had changed, with Zn mostly located in the vascular tissues 24 h after the Zn had been applied. Not only do the data presented herein provide new insight for improving the efficiency of foliar Zn fertilizers, but our approach of combining XFM with a transcriptome methodological system provides a novel approach for the study of element translocation in plants.
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Affiliation(s)
- Cui Li
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an, China
| | - Linlin Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an, China
| | - Jingtao Wu
- Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China
| | - F. Pax C. Blamey
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD, Australia
| | - Nina Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an, China
| | - Yanlong Chen
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an, China
| | - Yin Ye
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an, China
| | - Lei Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an, China
| | | | - Thea L. Read
- Future Industries Institute, University of South Australia, Mawson Lakes, SA, Australia
| | - Peng Wang
- College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Enzo Lombi
- Future Industries Institute, University of South Australia, Mawson Lakes, SA, Australia
| | - Yuheng Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi’an, China
| | - Peter M. Kopittke
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD, Australia
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21
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Xu M, Du L, Liu M, Zhou J, Pan W, Fu H, Zhang X, Ma Q, Wu L. Glycine-chelated zinc rather than glycine-mixed zinc has lower foliar phytotoxicity than zinc sulfate and enhances zinc biofortification in waxy corn. Food Chem 2022; 370:131031. [PMID: 34509153 DOI: 10.1016/j.foodchem.2021.131031] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/24/2021] [Accepted: 08/29/2021] [Indexed: 01/18/2023]
Abstract
To determine whether high spraying concentrations of Zn sources increase the Zn concentration in waxy corn (Zea mays L. var. ceratina Kulesh) seeds without compromising agronomic performance, field experiments were conducted between 2018 and 2020. Excess ZnSO4 application caused foliar burn, barren ear tip, and grain yield loss. ZnEDTA and Glycine-chelated Zn (ZnGly) caused less foliar burn, but Glycine-mixed Zn caused more foliar burn than ZnSO4. The seed Zn concentration increased with spraying Zn concentration. ZnEDTA (≤0.8%) had a higher threshold concentration than ZnGly (≤0.4%). Nevertheless, Zn biofortification efficacy did not significantly differ between 0.4% ZnGly and 0.8% ZnEDTA, and the grain Zn recovery rate of 0.4% ZnGly was much higher than that of 0.8% ZnEDTA. Additionally, dual-isotope labelling tests confirmed that 15N-glycine and 68Zn in ZnGly interacted. In the future, chelating technology is essential for developing new Zn fertilizers to optimize Zn biofortification efficacy.
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Affiliation(s)
- Meng Xu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Longgang Du
- Institute of Crop and Nuclear Technology Utilization, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Mengjiao Liu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jingjie Zhou
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wankun Pan
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Haoran Fu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xin Zhang
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qingxu Ma
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Lianghuan Wu
- Zhejiang Provincial Key Laboratory of Agricultural Resources and Environment, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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22
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Stanton C, Sanders D, Krämer U, Podar D. Zinc in plants: Integrating homeostasis and biofortification. MOLECULAR PLANT 2022; 15:65-85. [PMID: 34952215 DOI: 10.1016/j.molp.2021.12.008] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/07/2021] [Accepted: 12/21/2021] [Indexed: 05/24/2023]
Abstract
Zinc plays many essential roles in life. As a strong Lewis acid that lacks redox activity under environmental and cellular conditions, the Zn2+ cation is central in determining protein structure and catalytic function of nearly 10% of most eukaryotic proteomes. While specific functions of zinc have been elucidated at a molecular level in a number of plant proteins, wider issues abound with respect to the acquisition and distribution of zinc by plants. An important challenge is to understand how plants balance between Zn supply in soil and their own nutritional requirement for zinc, particularly where edaphic factors lead to a lack of bioavailable zinc or, conversely, an excess of zinc that bears a major risk of phytotoxicity. Plants are the ultimate source of zinc in the human diet, and human Zn deficiency accounts for over 400 000 deaths annually. Here, we review the current understanding of zinc homeostasis in plants from the molecular and physiological perspectives. We provide an overview of approaches pursued so far in Zn biofortification of crops. Finally, we outline a "push-pull" model of zinc nutrition in plants as a simplifying concept. In summary, this review discusses avenues that can potentially deliver wider benefits for both plant and human Zn nutrition.
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Affiliation(s)
| | - Dale Sanders
- John Innes Centre, Colney Lane, Norwich, NR4 7UH, UK
| | - Ute Krämer
- Molecular Genetics and Physiology of Plants, Ruhr University Bochum, 44801 Bochum, Germany.
| | - Dorina Podar
- Department of Molecular Biology and Biotechnology and Centre for Systems Biology, Biodiversity and Bioresources, Babes-Bolyai University, 400084 Cluj-Napoca, Romania.
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23
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Kamaral C, Neate SM, Gunasinghe N, Milham PJ, Paterson DJ, Kopittke PM, Seneweera S. Genetic biofortification of wheat with zinc: Opportunities to fine-tune zinc uptake, transport and grain loading. PHYSIOLOGIA PLANTARUM 2022; 174:e13612. [PMID: 34970752 DOI: 10.1111/ppl.13612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 11/15/2021] [Accepted: 12/02/2021] [Indexed: 05/27/2023]
Abstract
Zinc (Zn) is an important micronutrient in the human body, and health complications associated with insufficient dietary intake of Zn can be overcome by increasing the bioavailable concentrations in edible parts of crops (biofortification). Wheat (Triticum aestivum L) is the most consumed cereal crop in the world; therefore, it is an excellent target for Zn biofortification programs. Knowledge of the physiological and molecular processes that regulate Zn concentration in the wheat grain is restricted, inhibiting the success of genetic Zn biofortification programs. This review helps break this nexus by advancing understanding of those processes, including speciation regulated uptake, root to shoot transport, remobilisation, grain loading and distribution of Zn in wheat grain. Furthermore, new insights to genetic Zn biofortification of wheat are discussed, and where data are limited, we draw upon information for other cereals and Fe distribution. We identify the loading and distribution of Zn in grain as major bottlenecks for biofortification, recognising anatomical barriers in the vascular region at the base of the grain, and physiological and molecular restrictions localised in the crease region as major limitations. Movement of Zn from the endosperm cavity into the modified aleurone, aleurone and then to the endosperm is mainly regulated by ZIP and YSL transporters. Zn complexation with phytic acid in the aleurone limits Zn mobility into the endosperm. These insights, together with synchrotron-X-ray-fluorescence microscopy, support the hypothesis that a focus on the mechanisms of Zn loading into the grain will provide new opportunities for Zn biofortification of wheat.
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Affiliation(s)
- Chandima Kamaral
- Centre for Crop Health, University of Southern Queensland, Toowoomba, Queensland, Australia
| | - Stephen M Neate
- School of Agriculture, Food and Wine, Faculty of Sciences, University of Adelaide, Urrbrae, South Australia, Australia
| | - Niroshini Gunasinghe
- Centre for Crop Health, University of Southern Queensland, Toowoomba, Queensland, Australia
| | - Paul J Milham
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - David J Paterson
- Australian Synchrotron, Australian Nuclear Science and Technology Organisation, Clayton, Victoria, Australia
| | - Peter M Kopittke
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland, Australia
| | - Saman Seneweera
- Centre for Crop Health, University of Southern Queensland, Toowoomba, Queensland, Australia
- Department of Agriculture and Food Systems, University of Melbourne, Parkville, Victoria, Australia
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24
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Read TL, Doolette CL, Howell NR, Kopittke PM, Cresswell T, Lombi E. Zinc Accumulates in the Nodes of Wheat Following the Foliar Application of 65Zn Oxide Nano- and Microparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:13523-13531. [PMID: 34037394 DOI: 10.1021/acs.est.0c08544] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Using zinc (Zn) foliar fertilizers to enhance the grain quality of wheat (Triticum aestivum) can be an effective alternative or supplement to Zn soil fertilizers. However, knowledge about the mechanisms of Zn absorption and translocation following foliar application is scarce. Here, autoradiography and γ-spectrometry were used to investigate the behavior of 65Zn applied to wheat leaves as soluble 65Zn chloride (65ZnCl2), chelated 65Zn (65ZnEDTA), 65Zn oxide nanoparticle (65ZnO-NP) suspensions, and 65ZnO microparticle (65ZnO-MP) suspensions. The largest amount of 65Zn absorption occurred in 65ZnCl2 treated leaves. However, this treatment (65ZnCl2) also had the lowest proportion of absorbed 65Zn translocated away from the treated leaf after 15 d due to leaf scorching (p = 0.0007). Foliar-applied 65ZnO-NPs and 65ZnO-MPs had the lowest absorption, but 65ZnO-NPs had the highest relative translocation. 65Zinc EDTA was intermediate, with higher 65Zn absorption than 65ZnO treatments but similar translocation. Regardless, the majority of the foliar-applied 65Zn remained in the treated leaf for all treatments. Furthermore, 65ZnO-NPs and 65ZnO-MPs accumulated in plant nodes, suggesting that Zn was absorbed as dissolved 65Zn and particulate 65ZnO. Overall, the form and amount of absorbed 65Zn affected translocation.
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Affiliation(s)
- Thea L Read
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Casey L Doolette
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Nicholas R Howell
- Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - Peter M Kopittke
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Qld 4072, Australia
| | - Tom Cresswell
- Australian Nuclear Science and Technology Organisation (ANSTO), Lucas Heights, NSW 2234, Australia
| | - Enzo Lombi
- Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, Australia
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25
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Li C, Wu J, Blamey FPC, Wang L, Zhou L, Paterson DJ, van der Ent A, Fernández V, Lombi E, Wang Y, Kopittke PM. Non-glandular trichomes of sunflower are important in the absorption and translocation of foliar-applied Zn. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5079-5092. [PMID: 33944939 DOI: 10.1093/jxb/erab180] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 04/27/2021] [Indexed: 06/12/2023]
Abstract
Trichomes are potentially important for absorption of foliar fertilizers. A study has shown that the non-glandular trichromes (NGTs) of sunflower (Helianthus annuus) accumulated high concentrations of foliar-applied zinc (Zn); however, the mechanisms of Zn accumulation in the NGTs and the fate of this Zn are unclear. Here we investigated how foliar-applied Zn accumulates in the NGTs and the subsequent translocation of this Zn. Time-resolved synchrotron-based X-ray fluorescence microscopy and transcriptional analyses were used to probe the movement of Zn in the NGTs, with the cuticle composition of the NGTs examined using confocal Raman microscopy. The accumulation of Zn in the NGTs is both an initial preferential absorption process and a subsequent translocation process. This preferred absorption is likely because the NGT base has a higher hydrophilicity, whilst the subsequent translocation is due to the presence of plasmodesmata, Zn-chelating ligands, and Zn transporters in the NGTs. Furthermore, the Zn sequestered in the NGTs was eventually translocated out of the trichome once the leaf Zn concentration had decreased, suggesting that the NGTs are also important in maintaining leaf Zn homeostasis. This study demonstrates for the first time that trichomes have a key structural and functional role in the absorption and translocation of foliar-applied Zn.
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Affiliation(s)
- Cui Li
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, China
| | - Jingtao Wu
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland, Australia
| | - F Pax C Blamey
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland, Australia
| | - Linlin Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, China
| | - Lina Zhou
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, China
| | | | - Antony van der Ent
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland, Australia
| | - Victoria Fernández
- School of Forest Engineering, Forest Genetics and Ecophysiology Research Group, Technical University of Madrid, Madrid, Spain
| | - Enzo Lombi
- Future Industries Institute, University of South Australia, Mawson Lakes, South Australia, Australia
| | - Yuheng Wang
- School of Ecology and Environment, Northwestern Polytechnical University, Xi'an, China
| | - Peter M Kopittke
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland, Australia
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Common Bean Yield and Zinc Use Efficiency in Association with Diazotrophic Bacteria Co-Inoculations. AGRONOMY 2021. [DOI: 10.3390/agronomy11050959] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Enrichment of staple food with zinc (Zn) along with solubilizing bacteria is a sustainable and practical approach to overcome Zn malnutrition in human beings by improving plant nutrition, nutrient use efficiency, and productivity. Common bean (Phaseolus vulgaris L.) is one of a staple food of global population and has a prospective role in agronomic Zn biofortification. In this context, we evaluated the effect of diazotrophic bacterial co-inoculations (No inoculation, Rhizobium tropici, R. tropici + Azospirillum brasilense, R. tropici + Bacillus subtilis, R. tropici + Pseudomonas fluorescens, R. tropici + A. brasilense + B. subtilis, and R. tropici + A. brasilense + P. fluorescens) in association with soil Zn application (without and with 8 kg Zn ha−1) on Zn nutrition, growth, yield, and Zn use efficiencies in common bean in the 2019 and 2020 crop seasons. Soil Zn application in combination with R. tropici + B. subtilis improved Zn accumulation in shoot and grains with greater shoot dry matter, grain yield, and estimated Zn intake. Zinc use efficiency, recovery, and utilization were also increased with co-inoculation of R. tropici + B. subtilis, whereas agro-physiological efficiency was increased with triple co-inoculation of R. tropici + A. brasilense + P. fluorescens. Therefore, co-inoculation of R. tropici + B. subtilis in association with Zn application is recommended for biofortification and higher Zn use efficiencies in common bean in the tropical savannah of Brazil.
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Exogenous Application of Mg, Zn and B Influences Phyto-Nutritional Composition of Leaves and Fruits of Loquat (Eriobotrya japonica Lindl.). AGRONOMY-BASEL 2021. [DOI: 10.3390/agronomy11020224] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
This study was conducted to analyze the effect of magnesium (Mg), zinc (Zn) and boron (B) on the level of macronutrients (Na, Mg, K, Ca), micronutrients (Zn, B, Mo, Mn, Fe, Co, Ni, Cu), and heavy metals (Cd, As, Hg, Pb) in loquat leaves and fruit tissues (peel, pulp, and seed) using inductively coupled plasma-mass spectrometry (ICP-MS). Fruits were obtained from a loquat orchard located in Fujian (Yun Xiao/Zhangzhou). The results revealed that the foliar application of Mg increased the concentrations of Mg, K, Ca, Zn, B, Mn, Ni, and Cu in leaves; Mg, Ca, Zn, B, Mo, and Mn in fruit pulp; and Na, K, B, Mo, Co, Ni, and Cu in seeds. Zinc increased Mg, K, Ca, Zn, B, Ni, and Cu in leaves; Fe, Co and Ni in fruit peel; K, B, Mn, Fe, and Co in fruit pulp; and Na and K in seeds. Similarly, B application increased the concentrations of Na, Mg, K, Ca, and B in leaves; Ca and Ni in fruit peel; Na, Mg, Ca, Zn, B, Mn, Fe, and Co in fruit pulp; and Na, K, Ca, Zn, B, Mo, Mn, Co, and Ni in loquat seeds. Overall, mineral concentrations detected in the leaves and fruit tissues of loquats were greatly influenced by the application of Mg, Zn and B. Although heavy metal concentrations in fruit pulp were increased by the foliar application of B, the fruits were under safe limits for human consumption.
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Doolette CL, Read TL, Howell NR, Cresswell T, Lombi E. Zinc from foliar-applied nanoparticle fertiliser is translocated to wheat grain: A 65Zn radiolabelled translocation study comparing conventional and novel foliar fertilisers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 749:142369. [PMID: 33370927 DOI: 10.1016/j.scitotenv.2020.142369] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/10/2020] [Accepted: 09/10/2020] [Indexed: 05/04/2023]
Abstract
Foliar zinc (Zn) fertilisers can be used to supplement or replace soil applications of Zn in situations where soil properties may decrease the plant bioavailability of Zn. However, conventional foliar Zn formulations such as zinc sulfate can cause leaf damage due to the rapid release of high amounts of Zn2+ into leaf tissue which can be locally phytotoxic. Zinc oxide nanoparticles (ZnO-NPs) offer an alternative approach by providing a more sustained release of Zn into leaf tissue, and potentially avoiding the need for multiple applications. We compared the efficacy of ZnO-NPs and microparticles (ZnO-MPs) to that of conventional formulations (ZnCl2 and ZnEDTA) in wheat. This is the first study to use 65Zn radiolabelled formulations and gamma spectrometry to determine the translocation of Zn to the grains and subsequent efficiency of foliar-applied ZnO-NP fertilisers. We found that ZnEDTA was the most efficient fertiliser in terms of the proportion of applied Zn translocated to wheat grain. We also investigated the effect of Zn application rate on fertiliser efficiency. For all forms of Zn, when plants were treated with Zn at 750 mg/L or 75 mg/L, there were no significant differences in the concentration of applied Zn translocated to the grain. This suggests that current Zn application rates could be decreased while still maintaining the nutritional quality of grain. Finally, using photo-stimulated luminescence (PSL) autoradiography and synchrotron-based X-ray fluorescence microscopy (XFM) we showed that the grain distribution of foliar-applied Zn mirrors that of Zn derived from root uptake.
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Affiliation(s)
- C L Doolette
- University of South Australia, Future Industries Institute, South Australia 5000, Australia.
| | - T L Read
- University of South Australia, Future Industries Institute, South Australia 5000, Australia
| | - N R Howell
- ANSTO, Locked Bag 2001, Kirrawee, New South Wales 2232, Australia
| | - T Cresswell
- ANSTO, Locked Bag 2001, Kirrawee, New South Wales 2232, Australia
| | - E Lombi
- University of South Australia, Future Industries Institute, South Australia 5000, Australia
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Read TL, Doolette CL, Li C, Schjoerring JK, Kopittke PM, Donner E, Lombi E. Optimising the foliar uptake of zinc oxide nanoparticles: Do leaf surface properties and particle coating affect absorption? PHYSIOLOGIA PLANTARUM 2020; 170:384-397. [PMID: 32652623 DOI: 10.1111/ppl.13167] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/11/2020] [Accepted: 07/06/2020] [Indexed: 05/12/2023]
Abstract
Foliar absorption of zinc (Zn) is limited by several barriers, the first of which is the leaf cuticle. In this study, we investigated the absorption of Zn from Zn oxide nanoparticles (ZnO-NPs) in wheat (Triticum aestivum cv Gladius) and sunflower (Helianthus annuus cv Hyoleic 41) to determine the importance of NP surface coating for Zn absorption. Fourier transform infrared (FTIR) spectroscopy showed a higher polysaccharide content in the wheat cuticle than sunflower, indicated by a more pronounced glycosidic bond at 1020 cm-1 , but wax and cutin content were similar. Scanning electron microscopy (SEM) revealed that trichome density was twice as high in wheat (3600 ± 900 cm-2 ) as in sunflower (1600 cm-2 ) and stomatal density four times higher in sunflower (6400 ± 800 cm-2 in wheat and 22 900 cm-2 in sunflower). Suspensions of ZnO-NPs with coatings of different hydrophobicity were applied to leaves to compare Zn absorption using X-ray fluorescence microscopy (XFM) and inductively coupled plasma mass spectroscopy (ICP-MS). Absorption of Zn was similar between wheat and sunflower when Zn was applied at 1000 mg Zn l-1 , but much less Zn was absorbed from all ZnO products than from soluble Zn fertiliser. Particle coating did not affect Zn absorption, but it may facilitate particle adhesion to leaves, providing a longer-term source of resupply of Zn ions to the leaves. Differences in leaf surface characteristics did not affect Zn absorption, indicating that the cuticle is the main pathway of absorption under these conditions.
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Affiliation(s)
- Thea Lund Read
- University of South Australia, Future Industries Institute, Mawson Lakes, South Australia, 5095, Australia
| | - Casey Louise Doolette
- University of South Australia, Future Industries Institute, Mawson Lakes, South Australia, 5095, Australia
| | - Cui Li
- Northwestern Polytechnical University, Research Centre for Ecology and Environmental Sciences, Xi'an, 710072, China
| | - Jan Kofod Schjoerring
- Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Frederiksberg C, DK-1871, Denmark
| | - Peter Martin Kopittke
- The University of Queensland, School of Agriculture and Food Sciences, St. Lucia, Queensland, 4072, Australia
| | - Erica Donner
- University of South Australia, Future Industries Institute, Mawson Lakes, South Australia, 5095, Australia
| | - Enzo Lombi
- University of South Australia, Future Industries Institute, Mawson Lakes, South Australia, 5095, Australia
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Botoman L, Nalivata PC, Chimungu JG, Munthali MW, Bailey EH, Ander EL, Lark RM, Mossa A, Young SD, Broadley MR. Increasing zinc concentration in maize grown under contrasting soil types in Malawi through agronomic biofortification: Trial protocol for a field experiment to detect small effect sizes. PLANT DIRECT 2020; 4:e00277. [PMID: 33103047 PMCID: PMC7578695 DOI: 10.1002/pld3.277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/15/2020] [Accepted: 09/20/2020] [Indexed: 05/27/2023]
Abstract
The prevalence of micronutrient deficiencies including zinc (Zn) is widespread in Malawi, especially among poor and marginalized rural populations. This is due to low concentrations of Zn in most staple cereal crops and limited consumption of animal source foods. The Zn concentration of cereal grain can be increased through application of Zn-enriched fertilizers; a process termed agronomic biofortification or agro-fortification. This trial protocol describes a field experiment which aims to assess the potential of agronomic biofortification to improve the grain Zn concentration of maize, the predominant staple crop of Malawi. The hypotheses of the study are that application of Zn-enriched fertilizers will create a relatively small increase in the concentration of Zn in maize grains that will be sufficient to benefit dietary supplies of Zn, and that the effectiveness of agronomic biofortification will differ between soil types. The study will be conducted at three sites, Chitedze, Chitala, and Ngabu Agricultural Research Stations, in Lilongwe, Salima, and Chikwawa Districts respectively. These three sites represent locations in the Central and Southern Regions of Malawi. At each site, two different sub-sites will be used, each corresponding to one of two agriculturally important soil types of Malawi, Lixisols, and Vertisols. Within each sub-site, three Zn fertilizer rates (1, 30, and 90 kg/ha) will be applied to experimental plots using standard soil application methods, in a randomized complete block design. The number of replicates at plot level has been informed by a power analysis from pilot study data, assuming that a minimum 10% increase in Zn concentration of grain at 90 kg/ha relative to the concentration at 1 kg/ha is of interest. Grain mass (yield), stover mass, and both stover and grain Zn concentrations will be measured at harvest. A second year of cropping will be used to establish whether there are any residual benefits to grain Zn concentration. The potential for Zn agronomic biofortification will be communicated to relevant academic and government stakeholders through a peer review journal article and a briefing paper.
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Affiliation(s)
- Lester Botoman
- Crop and Soil Sciences DepartmentLilongwe University of Agriculture and Natural Resources (LUANAR)Bunda CampusLilongweMalawi
- Department of Agricultural Research ServicesChitedze Agricultural Research StationLilongweMalawi
| | - Patson C. Nalivata
- Crop and Soil Sciences DepartmentLilongwe University of Agriculture and Natural Resources (LUANAR)Bunda CampusLilongweMalawi
| | - Joseph G. Chimungu
- Crop and Soil Sciences DepartmentLilongwe University of Agriculture and Natural Resources (LUANAR)Bunda CampusLilongweMalawi
| | - Moses W. Munthali
- Department of Agricultural Research ServicesChitedze Agricultural Research StationLilongweMalawi
| | | | - E. Louise Ander
- Inorganic GeochemistryCentre for Environmental GeochemistryBritish Geological SurveyNottinghamUK
| | - R. Murray Lark
- School of BiosciencesUniversity of NottinghamLoughboroughUK
| | | | - Scott D. Young
- School of BiosciencesUniversity of NottinghamLoughboroughUK
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Chang JD, Huang S, Konishi N, Wang P, Chen J, Huang XY, Ma JF, Zhao FJ. Overexpression of the manganese/cadmium transporter OsNRAMP5 reduces cadmium accumulation in rice grain. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:5705-5715. [PMID: 32542348 DOI: 10.1093/jxb/eraa287] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 06/10/2020] [Indexed: 05/15/2023]
Abstract
Rice is a major dietary source of the toxic metal cadmium (Cd), and reducing its accumulation in the grain is therefore important for food safety. We selected two cultivars with contrasting Cd accumulation and generated transgenic lines overexpressing OsNRAMP5, which encodes a major influx transporter for manganese (Mn) and Cd. We used two different promoters to control the expression, namely OsActin1 and maize Ubiquitin. Overexpression of OsNRAMP5 increased Cd and Mn uptake into the roots, but markedly decreased Cd accumulation in the shoots, whilst having a relatively small effect on Mn accumulation in the shoots. The overexpressed OsNRAMP5 protein was localized to the plasma membrane of all cell types in the root tips and lateral root primordia without polarity. Synchrotron X-ray fluorescence mapping showed that the overexpression lines accumulated more Cd in the root tips and lateral root primordia compared with the wild-type. When grown in three Cd-contaminated paddy soils, overexpression of OsNRAMP5 decreased concentration of Cd in the grain by 49-94% compared with the wild type. OsNRAMP5-overexpression plants had decreased Cd translocation from roots to shoots as a result of disruption of its radial transport into the stele for xylem loading, demonstrating the effect of transporter localization and polarity on ion homeostasis.
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Affiliation(s)
- Jia-Dong Chang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Sheng Huang
- Institute of Plant Science and Resources, Okayama University, Chuo, Kurashiki, Japan
| | - Noriyuki Konishi
- Institute of Plant Science and Resources, Okayama University, Chuo, Kurashiki, Japan
| | - Peng Wang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Jie Chen
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xin-Yuan Huang
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
| | - Jian Feng Ma
- Institute of Plant Science and Resources, Okayama University, Chuo, Kurashiki, Japan
| | - Fang-Jie Zhao
- State Key Laboratory of Crop Genetics and Germplasm Enhancement, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, China
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32
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Xie R, Zhao J, Lu L, Brown P, Guo J, Tian S. Penetration of foliar-applied Zn and its impact on apple plant nutrition status: in vivo evaluation by synchrotron-based X-ray fluorescence microscopy. HORTICULTURE RESEARCH 2020; 7:147. [PMID: 32922819 PMCID: PMC7459125 DOI: 10.1038/s41438-020-00369-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/05/2020] [Accepted: 06/19/2020] [Indexed: 05/16/2023]
Abstract
The absorption of foliar fertilizer is a complex process and is poorly understood. The ability to visualize and quantify the pathway that elements take following their application to leaf surfaces is critical for understanding the science and for practical applications of foliar fertilizers. By the use of synchrotron-based X-ray fluorescence to analyze the in vivo localization of elements, our study aimed to investigate the penetration of foliar-applied Zn absorbed by apple (Malus domestica Borkh.) leaves with different physiological surface properties, as well as the possible interactions between foliar Zn level and the mineral nutrient status of treated leaves. The results indicate that the absorption of foliar-applied Zn was largely dependent on plant leaf surface characteristics. High-resolution elemental maps revealed that the high binding capacity of the cell wall for Zn contributed to the observed limitation of Zn penetration across epidermal cells. Trichome density and stomatal aperture had opposite effects on Zn fertilizer penetration: a relatively high density of trichomes increased the hydrophobicity of leaves, whereas the presence of stomata facilitated foliar Zn penetration. Low levels of Zn promoted the accumulation of other mineral elements in treated leaves, and the complexation of Zn with phytic acid potentially occurred owing to exposure to high-Zn conditions. The present study provides direct visual evidence for the Zn penetration process across the leaf surface, which is important for the development of strategies for Zn biofortification in crop species.
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Affiliation(s)
- Ruohan Xie
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou, 310058 China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou, 310058 China
| | - Jianqi Zhao
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou, 310058 China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou, 310058 China
| | - Lingli Lu
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou, 310058 China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou, 310058 China
| | - Patrick Brown
- Department of Plant Sciences, University of California, Davis, CA 95616 USA
| | - Jiansheng Guo
- Department of Pathology of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310020 China
- Center of Cryo-Electron Microscopy, Zhejiang University School of Medicine, Hangzhou, 310058 China
| | - Shengke Tian
- MOE Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou, 310058 China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou, 310058 China
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Sharma P, Yadav P, Ghosh C, Singh B. Heavy metal capture from the suspended particulate matter by Morus alba and evidence of foliar uptake and translocation of PM associated zinc using radiotracer ( 65Zn). CHEMOSPHERE 2020; 254:126863. [PMID: 32957281 DOI: 10.1016/j.chemosphere.2020.126863] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 02/15/2020] [Accepted: 04/20/2020] [Indexed: 06/11/2023]
Abstract
In urban set up, increasing combustion and processing activities have contaminated the air with toxic heavy metals which are generally enriched on atmospheric particulate matter. Vegetation around urban area act as a sink where such metal enriched particles generally deposit on the foliar surfaces, however, role of vegetation in uptake of metals adhered on the atmospheric particulate matter is yet not explored properly and is important to study to evaluate their role as bio-remediator. The undertaken work examines the foliar surface of Morus alba for its potential to deposit and accumulate atmospheric heavy metals. Further, to understand foliar uptake mechanism and translocation of atmospheric metal enriched on particulate matter a simulated experiment was conducted by labeling the known particle size (45 μm and 120 μm) with radio labeled 65Zn, applied on the tagged leaf with two particle loads, 25 mg and 50 mg. The study showed that owing to its rough foliar surface with trichomes and grooves, Morus alba efficiently trap heavy metal enriched particles and was capable of accumulating metals from particulate matter into different plant parts. It was recorded that 65Zn adhered on different size particles was taken up by tagged leaf of mulberry and majorly translocated to the lower stem and roots. It was also inferred from the study that both particle size and particle load significantly affect the foliar uptake and translocation of atmospheric heavy metal. The study focuses on the fact that urban avenue trees are capable of taking up atmospheric heavy metals and can play a crucial role in improving air quality.
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Affiliation(s)
- Priyanka Sharma
- Environmental Pollution Laboratory, Department of Environmental Studies, University of Delhi, New Delhi, 110 007, India
| | - Poonam Yadav
- Centre for Environment Science and Climate Resilient Agriculture, Nuclear Research Laboratory Building, ICAR-Indian Agriculture Research Institute, New Delhi, 110 012, India
| | - Chirashree Ghosh
- Environmental Pollution Laboratory, Department of Environmental Studies, University of Delhi, New Delhi, 110 007, India
| | - Bhupinder Singh
- Centre for Environment Science and Climate Resilient Agriculture, Nuclear Research Laboratory Building, ICAR-Indian Agriculture Research Institute, New Delhi, 110 012, India.
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Wang Z, Wang H, Xu C, Lv G, Luo Z, Zhu H, Wang S, Zhu Q, Huang D, Li B. Foliar Application of Zn-EDTA at Early Filling Stage to Increase Grain Zn and Fe, and Reduce Grain Cd, Pb and Grain Yield in Rice (Oryza sativa L.). BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2020; 105:428-432. [PMID: 32740744 DOI: 10.1007/s00128-020-02949-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
The accumulation of Cd and Pb in rice grains poses a potential threat to human health, which is a subject of increasing concern across the globe. We examined the effect that foliar spraying of Zn-ethylenediaminetetraacetate (Zn-EDTA) (0.3% and 0.5% w/v) during the early-grain filling stage has on rice grain yield and Cd, Pb, Zn and Fe contents in rice tissues via a field experiment. The grain yield significantly decreased with the foliar application of 0.5% Zn-EDTA. In rice grain, foliar spraying of 0.5% Zn-EDTA significantly decreased the Cd and Pb contents, but increased the Zn and Fe contents. The main reasons for the decrease in the Cd and Pb content in grain were the inhibition of Cd and Pb by roots and the increased Fe content in grain via Zn-EDTA application. The foliar spraying of Zn-EDTA decreased the grain yield and Cd and Pb contents, while increased the Zn and Fe contents in grains.
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Affiliation(s)
- Zhongyuan Wang
- Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hui Wang
- Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- College of Resources and Environment, Hunan Agricultural University, Changsha, 410128, China
| | - Chao Xu
- Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
| | - Guanghui Lv
- Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Zunchang Luo
- Soil and Fertilizer Institute of Hunan Province, Changsha, 410125, China
| | - Hanhua Zhu
- Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Shuai Wang
- Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Qihong Zhu
- Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Daoyou Huang
- Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Baizhong Li
- Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
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van der Ent A, Casey LW, Blamey FPC, Kopittke PM. Time-resolved laboratory micro-X-ray fluorescence reveals silicon distribution in relation to manganese toxicity in soybean and sunflower. ANNALS OF BOTANY 2020; 126:331-341. [PMID: 32337539 PMCID: PMC7380460 DOI: 10.1093/aob/mcaa081] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 04/21/2020] [Indexed: 05/14/2023]
Abstract
BACKGROUND AND AIMS Synchrotron- and laboratory-based micro-X-ray fluorescence (µ-XRF) is a powerful technique to quantify the distribution of elements in physically large intact samples, including live plants, at room temperature and atmospheric pressure. However, analysis of light elements with atomic number (Z) less than that of phosphorus is challenging due to the need for a vacuum, which of course is not compatible with live plant material, or the availability of a helium environment. METHOD A new laboratory µ-XRF instrument was used to examine the effects of silicon (Si) on the manganese (Mn) status of soybean (Glycine max) and sunflower (Helianthus annuus) grown at elevated Mn in solution. The use of a helium environment allowed for highly sensitive detection of both Si and Mn to determine their distribution. KEY RESULTS The µ-XRF analysis revealed that when Si was added to the nutrient solution, the Si also accumulated in the base of the trichomes, being co-located with the Mn and reducing the darkening of the trichomes. The addition of Si did not reduce the concentrations of Mn in accumulations despite seeming to reduce its adverse effects. CONCLUSIONS The ability to gain information on the dynamics of the metallome or ionome within living plants or excised hydrated tissues can offer valuable insights into their ecophysiology, and laboratory µ-XRF is likely to become available to more plant scientists for use in their research.
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Affiliation(s)
- Antony van der Ent
- Sustainable Minerals Institute, The University of Queensland, Brisbane, Australia
| | - Lachlan W Casey
- Centre for Microscopy and Microanalysis, The University of Queensland, Brisbane, Australia
| | - F Pax C Blamey
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, Australia
| | - Peter M Kopittke
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, Australia
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36
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Xie R, Zhao J, Lu L, Brown P, Lin X, Webb SM, Ge J, Antipova O, Li L, Tian S. Seasonal Zinc Storage and a Strategy for Its Use in Buds of Fruit Trees. PLANT PHYSIOLOGY 2020; 183:1200-1212. [PMID: 32423902 PMCID: PMC7333724 DOI: 10.1104/pp.19.01563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/09/2020] [Indexed: 05/04/2023]
Abstract
Bud dormancy allows deciduous perennial plants to rapidly grow following seasonal cold conditions. Although many studies have examined the hormonal regulation of bud growth, the role of nutrients remains unclear. Insufficient accumulation of the key micronutrient zinc (Zn) in dormant buds affects the vegetative and reproductive growth of perennial plants during the subsequent year, requiring the application of Zn fertilizers in orchard management to avoid growth defects in fruit trees. However, the mechanisms of seasonal Zn homeostasis in perennial plants remain poorly understood. Here, we provide new insights into Zn distribution and speciation within reproductive and vegetative buds of apple (Malus domestica) and four other deciduous fruit trees (peach [Amygdalus persica], grape [Vitis vinifera], pistachio [Pistacia vera], and blueberry [Vaccinium spp.]) using microscopic and spectroscopic characterization techniques comprising synchrotron-based x-ray fluorescence and x-ray absorption near-edge-structure analyses. By establishing a link between bud development and Zn distribution, we identified the following important steps of Zn storage and use in deciduous plants: Zn is preferentially deposited in the stem nodes subtending apical and axillary buds; Zn may then be sequestered as Zn-phytate prior to dormancy; in spring, Zn effectively releases for use during budbreak and subsequent meristematic growth. The mechanisms of Zn homeostasis during the seasonal cycles of plant growth and dormancy described here will contribute to improving orchard management, and to selection and breeding of deciduous perennial species.
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Affiliation(s)
- Ruohan Xie
- Ministry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Jianqi Zhao
- Ministry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Lingli Lu
- Ministry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Patrick Brown
- Department of Plant Sciences, University of California, Davis, California 95616
| | - Xianyong Lin
- Ministry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Samuel M Webb
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025
| | - Jun Ge
- Ministry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou 310058, China
| | - Olga Antipova
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439
| | - Luxi Li
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois 60439
| | - Shengke Tian
- Ministry of Education (MOE) Key Laboratory of Environment Remediation and Ecological Health, College of Environmental and Resource Science, Zhejiang University, Hangzhou 310058, China
- Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Zhejiang University, Hangzhou 310058, China
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van der Ent A, Kopittke PM, Paterson DJ, Casey LW, Nkrumah PN. Distribution of aluminium in hydrated leaves of tea (Camellia sinensis) using synchrotron- and laboratory-based X-ray fluorescence microscopy. Metallomics 2020; 12:1062-1069. [PMID: 32266879 DOI: 10.1039/c9mt00300b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aluminium (Al) is highly toxic to plant growth, with soluble concentrations being elevated in the ∼40% of arable soils worldwide that are acidic. Determining the distribution of Al in plant tissues is important for understanding the mechanisms by which it is toxic and how some plants tolerate high concentrations. Synchrotron- and laboratory-based X-ray fluorescence microscopy (XFM) is a powerful technique to quantitatively analyse the distribution of elements, including in hydrated and living plants. However, analysis of light elements (z < phosphorus) is extremely challenging due to signal losses in air, and the unsuitability of vacuum environments for (fresh) hydrated plant tissues. This study uses XFM in a helium environment to avoid Al signal loss to reveal the distribution of Al in hydrated plant tissues of Tea (Camellia sinensis). The results show that Al occurs in localised areas across the foliar surface, whereas in cross-sections Al is almost exclusively concentrated in the apoplastic space above and in between adaxial epidermal cells. This distribution of Al is related to the Al tolerance of this species, and accumulation of phytotoxic elements in the apoplastic space, away from sensitive processes such as photosynthesis in the palisade mesophyll cells, is a common tolerance mechanism reported in many different plant species. This study develops an XFM method on both synchrotron and laboratory sources that overcomes the drawbacks of existing analytical techniques, permitting measurement of light elements down to Al in (fresh) hydrated plant tissues.
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Affiliation(s)
- Antony van der Ent
- The University of Queensland, Sustainable Minerals Institute, St Lucia, Queensland 4072, Australia.
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Kopittke PM, Lombi E, van der Ent A, Wang P, Laird JS, Moore KL, Persson DP, Husted S. Methods to Visualize Elements in Plants. PLANT PHYSIOLOGY 2020; 182:1869-1882. [PMID: 31974126 PMCID: PMC7140966 DOI: 10.1104/pp.19.01306] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 01/16/2020] [Indexed: 05/18/2023]
Abstract
Understanding the distribution of elements in plants is important for researchers across a broad range of fields, including plant molecular biology, agronomy, plant physiology, plant nutrition, and ionomics. However, it is often challenging to evaluate the applicability of the wide range of techniques available, with each having its own strengths and limitations. Here, we compare scanning/transmission electron microscopy-based energy-dispersive x-ray spectroscopy, x-ray fluorescence microscopy, particle-induced x-ray emission, laser ablation inductively coupled plasma-mass spectrometry, nanoscale secondary ion mass spectroscopy, autoradiography, and confocal microscopy with fluorophores. For these various techniques, we compare their accessibility, their ability to analyze hydrated tissues (without sample preparation) and suitability for in vivo analyses, as well as examining their most important analytical merits, such as resolution, sensitivity, depth of analysis, and the range of elements that can be analyzed. We hope that this information will assist other researchers to select, access, and evaluate the approach that is most useful in their particular research program or application.
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Affiliation(s)
- Peter M Kopittke
- University of Queensland, School of Agriculture and Food Sciences, St. Lucia, Queensland 4072, Australia
| | - Enzo Lombi
- University of South Australia, Future Industries Institute, Mawson Lakes, South Australia 5095, Australia
| | - Antony van der Ent
- University of Queensland, Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, St. Lucia, Queensland 4072, Australia
| | - Peng Wang
- Nanjing Agricultural University, College of Resources and Environmental Sciences, Nanjing 210095, China
| | - Jamie S Laird
- University of Melbourne, School of Physics, Parkville, Victoria 3010, Australia
| | - Katie L Moore
- University of Manchester, School of Materials, Photon Science Institute, Manchester M13 9PL, United Kingdom
| | - Daniel P Persson
- University of Copenhagen, Department of Plant and Environmental Sciences and Copenhagen Plant Science Centre, 1871 Frederiksberg, Denmark
| | - Søren Husted
- University of Copenhagen, Department of Plant and Environmental Sciences and Copenhagen Plant Science Centre, 1871 Frederiksberg, Denmark
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39
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Jones MWM, Kopittke PM, Casey L, Reinhardt J, Blamey FPC, van der Ent A. Assessing radiation dose limits for X-ray fluorescence microscopy analysis of plant specimens. ANNALS OF BOTANY 2020; 125:599-610. [PMID: 31777920 PMCID: PMC7102987 DOI: 10.1093/aob/mcz195] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 11/27/2019] [Indexed: 05/05/2023]
Abstract
BACKGROUND AND AIMS X-ray fluorescence microscopy (XFM) is a powerful technique to elucidate the distribution of elements within plants. However, accumulated radiation exposure during analysis can lead to structural damage and experimental artefacts including elemental redistribution. To date, acceptable dose limits have not been systematically established for hydrated plant specimens. METHODS Here we systematically explore acceptable dose rate limits for investigating fresh sunflower (Helianthus annuus) leaf and root samples and investigate the time-dose damage in leaves attached to live plants. KEY RESULTS We find that dose limits in fresh roots and leaves are comparatively low (4.1 kGy), based on localized disintegration of structures and element-specific redistribution. In contrast, frozen-hydrated samples did not incur any apparent damage even at doses as high as 587 kGy. Furthermore, we find that for living plants subjected to XFM measurement in vivo and grown for a further 9 d before being reimaged with XFM, the leaves display elemental redistribution at doses as low as 0.9 kGy and they continue to develop bleaching and necrosis in the days after exposure. CONCLUSIONS The suggested radiation dose limits for studies using XFM to examine plants are important for the increasing number of plant scientists undertaking multidimensional measurements such as tomography and repeated imaging using XFM.
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Affiliation(s)
- Michael W M Jones
- Central Analytical Research Facility, Institute for Future Environments, Queensland University of Technology, Australia
- For correspondence. E-mail
| | - Peter M Kopittke
- School of Agriculture and Food Sciences, The University of Queensland, Australia
| | - Lachlan Casey
- Centre for Microscopy and Microanalysis, The University of Queensland, Australia
| | | | - F Pax C Blamey
- School of Agriculture and Food Sciences, The University of Queensland, Australia
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Montanha GS, Rodrigues ES, Romeu SLZ, de Almeida E, Reis AR, Lavres J, Pereira de Carvalho HW. Zinc uptake from ZnSO 4 (aq) and Zn-EDTA (aq) and its root-to-shoot transport in soybean plants (Glycine max) probed by time-resolved in vivo X-ray spectroscopy. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 292:110370. [PMID: 32005376 DOI: 10.1016/j.plantsci.2019.110370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 06/10/2023]
Abstract
This study investigated the dynamic of zinc (Zn) uptake and the root-to-shoot Zn-transport when supplied as ZnSO4 (aq) or Zn-EDTA (aq) in soybean seedlings using in vivo X-ray fluorescence (XRF) and X-ray absorption spectroscopy (XANES). The time-resolved X-ray fluorescence showed that plants absorbed ca. 10-fold more Zn from ZnSO4 (aq) than from Zn-EDTA (aq). However, the uptake velocity did not influence the amount of Zn in the stem. It let furthermore appear that the plants were able to reduce the absorption of Zn from Zn-EDTA (aq) earlier than ZnSO4 (aq). Thus, the entrance of Zn2+ into the roots is not necessarily accompanied by SO42-(aq). Regardless the source, the Zn distribution and its transport in the stem were spatially correlated to the bundles and cortex nearby the epidermal cells. Its chemical speciation showed that Zn is neither transported as ZnSO4(aq) nor as Zn-EDTA(aq), indicating that these compounds are retained in the roots or biotransformed on in the root-solution interface. Zn2+ was long-distance transported complexed by organic molecules such as histidine, malate, and citrate, and the proportion of ligands was affected by the concentration of Zn2+ in the stem rather than by the type of Zn source.
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Affiliation(s)
- Gabriel S Montanha
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - Eduardo S Rodrigues
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - Sara L Z Romeu
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - Eduardo de Almeida
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - André R Reis
- São Paulo State University (UNESP), Rua Domingos da Costa Lopes 780, 17602-496, Tupã, São Paulo, Brazil.
| | - José Lavres
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
| | - Hudson W Pereira de Carvalho
- University of São Paulo (USP), Center of Nuclear Energy in Agriculture (CENA), Avenida Centenário 303, 13416-000, Piracicaba, São Paulo, Brazil.
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Montanha GS, Rodrigues ES, Marques JPR, de Almeida E, Dos Reis AR, Pereira de Carvalho HW. X-ray fluorescence spectroscopy (XRF) applied to plant science: challenges towards in vivo analysis of plants. Metallomics 2020; 12:183-192. [PMID: 31793600 DOI: 10.1039/c9mt00237e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
X-ray fluorescence spectroscopy (XRF) is an analytical tool used to determine the elemental composition in a myriad of sample matrices. Due to the XRF non-destructive feature, this technique may allow time-resolved plant tissue analyses under in vivo conditions, and additionally, the combination with other non-destructive techniques. In this study, we employed handheld and benchtop XRF to evaluate the elemental distribution changes in living plant tissues exposed to X-rays, as well as real-time uptake kinetics of Zn(aq) and Mn(aq) in soybean (Glycine max (L.) Merrill) stem and leaves, for 48 hours, combined with transpiration rate assessment on leaves by an infrared gas analyzer (IRGA). We found higher Zn content than Mn in stems. The latter micronutrient, in turn, presented higher concentration in leaf veins. Besides, both micronutrients were more concentrated in the first trifolium (i.e., youngest leaf) of soybean plants. Moreover, the transpiration rate was more influenced by circadian cycles than Zn and Mn uptake. Thus, XRF represents a convenient tool for in vivo nutritional studies in plants, and it can be coupled successfully to other analytical techniques.
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Affiliation(s)
- Gabriel Sgarbiero Montanha
- Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Avenida Centenário, 303, Piracicaba, SP 13416000, Brazil.
| | - Eduardo Santos Rodrigues
- Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Avenida Centenário, 303, Piracicaba, SP 13416000, Brazil.
| | - João Paulo Rodrigues Marques
- Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Avenida Centenário, 303, Piracicaba, SP 13416000, Brazil.
| | - Eduardo de Almeida
- Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Avenida Centenário, 303, Piracicaba, SP 13416000, Brazil.
| | | | - Hudson Wallace Pereira de Carvalho
- Center for Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Avenida Centenário, 303, Piracicaba, SP 13416000, Brazil.
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Blamey FPC, Li C, Howard DL, Cheng M, Tang C, Scheckel KG, Noerpel MR, Wang P, Menzies NW, Kopittke PM. Evaluating effects of iron on manganese toxicity in soybean and sunflower using synchrotron-based X-ray fluorescence microscopy and X-ray absorption spectroscopy. Metallomics 2019; 11:2097-2110. [PMID: 31681916 DOI: 10.1039/c9mt00219g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2023]
Abstract
With similar chemistry, Mn and Fe interact in their many essential roles in plants but the magnitude and mechanisms involved of these interactions are poorly understood. Leaves of soybean (a Mn-sensitive species) developed a mild chlorosis and small dark spots and distorted trifoliate leaves with 30 μM Mn and 0.6 μM Fe in nutrient solution (pH 5.6; 3 mM ionic strength). At 0.6 μM Fe, lower alternate leaves of sunflower (a Mn-tolerant species) were chlorotic at 30 μM Mn and had a pale chlorosis and necrosis at 400 μM Mn. A concentration of 30 and 300 μM Fe in solution alleviated these typical symptoms of Mn toxicity and decreased the concentration of Mn from >3000 to ca. 800 mg kg-1 dry mass (DM) in all leaf tissues. As expected, increased Fe supply increased Fe in leaves from <100 up to 1350 mg Fe kg-1 DM. In situ synchrotron-based X-ray fluorescence microscopy showed that increased Fe supply caused an overall decrease in Mn in the leaf tissue but had little effect on the pattern of its distribution. Similarly, X-ray absorption spectroscopy identified only slight effects of Fe supply on Mn speciation in leaf tissues. Thus, the results of this study indicate that increased Fe supply ameliorated Mn toxicity in soybean and sunflower largely through decreased Mn uptake and translocation to leaf tissues rather than through changes in Mn distribution or speciation within the leaves.
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Affiliation(s)
- F Pax C Blamey
- School of Agriculture and Food Sciences, The University of Queensland, St Lucia, Queensland 4072, Australia.
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43
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Gomes MHF, Machado BA, Rodrigues ES, Montanha GS, Rossi ML, Otto R, Linhares FS, P Carvalho HW. In Vivo Evaluation of Zn Foliar Uptake and Transport in Soybean Using X-ray Absorption and Fluorescence Spectroscopy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:12172-12181. [PMID: 31609615 DOI: 10.1021/acs.jafc.9b04977] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Understanding the mechanisms of absorption and transport of foliar nutrition is a key step towards the development of advanced fertilization methods. This study employed X-ray fluorescence (XRF) and X-ray absorption near edge spectroscopy (XANES) to trace the in vivo absorption and transport of ZnO and ZnSO4(aq) to soybean leaves (Glycine max). XRF maps monitored over 48 h showed a shape change of the dried ZnSO4(aq) droplet, indicating Zn2+ absorption. Conversely, these maps did not show short movement of Zn from ZnO. XRF measurements on petioles of leaves that received Zn2+ treatments clarified that the Zn absorption and transport in the form of ZnSO4(aq) was faster that of ZnO. Solubility was the major factor driving ZnSO4(aq) absorption. XANES speciation showed that in planta Zn is transported coordinated with organic acids. Because plants demand Zn during their entire lifecycle, the utilization of sources with different solubilities can increase Zn use efficiency.
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Affiliation(s)
- Marcos H F Gomes
- Centre for Nuclear Energy in Agriculture , University of São Paulo , Piracicaba , São Paulo 13416-000 , Brazil
| | - Bianca A Machado
- Centre for Nuclear Energy in Agriculture , University of São Paulo , Piracicaba , São Paulo 13416-000 , Brazil
| | - Eduardo S Rodrigues
- Centre for Nuclear Energy in Agriculture , University of São Paulo , Piracicaba , São Paulo 13416-000 , Brazil
| | - Gabriel Sgarbiero Montanha
- Centre for Nuclear Energy in Agriculture , University of São Paulo , Piracicaba , São Paulo 13416-000 , Brazil
| | - Mônica Lanzoni Rossi
- Centre for Nuclear Energy in Agriculture , University of São Paulo , Piracicaba , São Paulo 13416-000 , Brazil
| | - Rafael Otto
- "Luiz de Queiroz" College of Agriculture , University of São Paulo , Piracicaba , São Paulo 13418-900 , Brazil
| | - Francisco S Linhares
- Centre for Nuclear Energy in Agriculture , University of São Paulo , Piracicaba , São Paulo 13416-000 , Brazil
| | - Hudson W P Carvalho
- Centre for Nuclear Energy in Agriculture , University of São Paulo , Piracicaba , São Paulo 13416-000 , Brazil
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Sperdouli I, Moustaka J, Antonoglou O, Adamakis IDS, Dendrinou-Samara C, Moustakas M. Leaf Age-Dependent Effects of Foliar-Sprayed CuZn Nanoparticles on Photosynthetic Efficiency and ROS Generation in Arabidopsis thaliana. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2498. [PMID: 31390827 PMCID: PMC6695995 DOI: 10.3390/ma12152498] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/27/2019] [Accepted: 08/03/2019] [Indexed: 12/15/2022]
Abstract
Young and mature leaves of Arabidopsis thaliana were exposed by foliar spray to 30 mg L-1 of CuZn nanoparticles (NPs). The NPs were synthesized by a microwave-assisted polyol process and characterized by dynamic light scattering (DLS), X-ray diffraction (XRD), and transmission electron microscopy (TEM). CuZn NPs effects in Arabidopsis leaves were evaluated by chlorophyll fluorescence imaging analysis that revealed spatiotemporal heterogeneity of the quantum efficiency of PSII photochemistry (ΦPSΙΙ) and the redox state of the plastoquinone (PQ) pool (qp), measured 30 min, 90 min, 180 min, and 240 min after spraying. Photosystem II (PSII) function in young leaves was observed to be negatively influenced, especially 30 min after spraying, at which point increased H2O2 generation was correlated to the lower oxidized state of the PQ pool.. Recovery of young leaves photosynthetic efficiency appeared only after 240 min of NPs spray when also the level of ROS accumulation was similar to control leaves. On the contrary, a beneficial effect on PSII function in mature leaves after 30 min of the CuZn NPs spray was observed, with increased ΦPSΙΙ, an increased electron transport rate (ETR), decreased singlet oxygen (1O2) formation, and H2O2 production at the same level of control leaves.An explanation for this differential response is suggested.
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Affiliation(s)
- Ilektra Sperdouli
- Department of Botany, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
- Institute of Plant Breeding and Genetic Resources, Hellenic Agricultural Organisation-Demeter, Thermi, GR-57001 Thessaloniki, Greece
| | - Julietta Moustaka
- Department of Botany, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark
| | - Orestis Antonoglou
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Ioannis-Dimosthenis S Adamakis
- Department of Botany, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
- Department of Botany, Faculty of Biology, National and Kapodistrian University of Athens, Athens 157 72, Greece
| | - Catherine Dendrinou-Samara
- Laboratory of Inorganic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Michael Moustakas
- Department of Botany, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
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García-López JI, Niño-Medina G, Olivares-Sáenz E, Lira-Saldivar RH, Barriga-Castro ED, Vázquez-Alvarado R, Rodríguez-Salinas PA, Zavala-García F. Foliar Application of Zinc Oxide Nanoparticles and Zinc Sulfate Boosts the Content of Bioactive Compounds in Habanero Peppers. PLANTS (BASEL, SWITZERLAND) 2019; 8:E254. [PMID: 31366005 PMCID: PMC6724079 DOI: 10.3390/plants8080254] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 07/14/2019] [Accepted: 07/24/2019] [Indexed: 11/17/2022]
Abstract
The physiological responses of habanero pepper plants (Capsicum chinense Jacq.) to foliar applications of zinc sulphate and zinc nano-fertilizer were evaluated in greenhouse trials. The effect of the supplement on fruit quality of habanero pepper was particularly observed. Habanero pepper plants were grown to maturity, and during the main stages of phenological development, they were treated with foliar applications of Zn at concentrations of 1000 and 2000 mg L-1 in the form of zinc sulfate (ZnSO4) and zinc oxide nanoparticles (ZnO NPs). Additional Zn was not supplied to the control treatment plants. ZnO NPs at a concentration of 1000 mg L-1 positively affected plant height, stem diameter, and chlorophyll content, and increased fruit yield and biomass accumulation compared to control and ZnSO4 treatments. ZnO NPs at 2000 mg L-1 negatively affected plant growth but significantly increased fruit quality, capsaicin content by 19.3%, dihydrocapsaicin by 10.9%, and Scoville Heat Units by 16.4%. In addition, at 2000 ZnO NPs mg L-1 also increased content of total phenols and total flavonoids (soluble + bound) in fruits (14.50% and 26.9%, respectively), which resulted in higher antioxidant capacity in ABTS (2,2'azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)), DPPH (2,2-diphenyl-1-picrylhydrazyl), and FRAP (ferric reducing antioxidant power) (15.4%, 31.8%, and 20.5%, respectively). These results indicate that application of ZnO NPs could be employed in habanero pepper production to improve yield, quality, and nutraceutical properties of fruits.
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Affiliation(s)
- Josué I García-López
- Universidad Autónoma de Nuevo León, Laboratorio de Química y Bioquímica, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda el Canadá, C.P. 66050 General Escobedo, Nuevo León, Mexico
| | - Guillermo Niño-Medina
- Universidad Autónoma de Nuevo León, Laboratorio de Química y Bioquímica, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda el Canadá, C.P. 66050 General Escobedo, Nuevo León, Mexico.
| | - Emilio Olivares-Sáenz
- Universidad Autónoma de Nuevo León, Laboratorio de Química y Bioquímica, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda el Canadá, C.P. 66050 General Escobedo, Nuevo León, Mexico
| | - Ricardo H Lira-Saldivar
- Departamento de Agroplasticultura, Centro de Investigación en Química Aplicada (CIQA), CP. 25294 Saltillo, Coahuila, Mexico
| | - Enrique Díaz Barriga-Castro
- Departamento de Agroplasticultura, Centro de Investigación en Química Aplicada (CIQA), CP. 25294 Saltillo, Coahuila, Mexico
| | - Rigoberto Vázquez-Alvarado
- Universidad Autónoma de Nuevo León, Laboratorio de Química y Bioquímica, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda el Canadá, C.P. 66050 General Escobedo, Nuevo León, Mexico
| | - Pablo A Rodríguez-Salinas
- Universidad Autónoma de Nuevo León, Laboratorio de Química y Bioquímica, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda el Canadá, C.P. 66050 General Escobedo, Nuevo León, Mexico
| | - Francisco Zavala-García
- Universidad Autónoma de Nuevo León, Laboratorio de Química y Bioquímica, Facultad de Agronomía, Francisco Villa S/N, Col. Ex-Hacienda el Canadá, C.P. 66050 General Escobedo, Nuevo León, Mexico.
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Pavia I, Roque J, Rocha L, Ferreira H, Castro C, Carvalho A, Silva E, Brito C, Gonçalves A, Lima-Brito J, Correia C. Zinc priming and foliar application enhances photoprotection mechanisms in drought-stressed wheat plants during anthesis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 140:27-42. [PMID: 31078782 DOI: 10.1016/j.plaphy.2019.04.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/18/2019] [Accepted: 04/21/2019] [Indexed: 05/24/2023]
Abstract
Drought is one of most important limiting factors in wheat productivity worldwide. The need to increase drought tolerance during anthesis is of the utmost importance for high yield potentials and yield stability. Photosynthesis is one of the major physiological processes affected by drought. Damages in the photosynthetic apparatus may also arise due to non-regulated dissipation of excessive energy. Zinc (Zn) is an indispensable micronutrient for plants and is required for a wide range of physiological and biochemical processes. In this work we evaluated the stress mitigation effects of Zn seed priming alone and coupled with Zn foliar application in wheat plants submitted to severe drought during anthesis, followed by a recovery period. Under such severe drought stress, photosynthesis was constrained by both stomatal and non-stomatal limitation. Severe drought also induced an increase in non-regulated energy dissipation and hindered a full recovery of the plant's photosynthetic processes after rewatering. We also report possible activation of transposable elements due to drought stress and Zn application. Yield was severely decreased by drought and Zn treatments were unable to counteract this effect. Although unable to oppose the reduction of net photosynthesis, Zn treatments positively enhance photoprotection. At the end of drought period, Zn priming alone and coupled with Zn foliar application increased, respectively, over 2- and 3- fold the regulated dissipation of excess energy. Zn treatments lessened the non-regulated energy dissipation caused by drought, protected the plants against irreversible damages to the photosynthetic apparatus and enabled a better recovery of wheat plants after stress relief.
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Affiliation(s)
- Ivo Pavia
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - João Roque
- BioISI - UTAD, Biosystems & Integrative Sciences Institute - Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Luís Rocha
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Helena Ferreira
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Cláudia Castro
- BioISI - UTAD, Biosystems & Integrative Sciences Institute - Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Ana Carvalho
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; BioISI - UTAD, Biosystems & Integrative Sciences Institute - Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Ermelinda Silva
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Cátia Brito
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Alexandre Gonçalves
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - José Lima-Brito
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal; BioISI - UTAD, Biosystems & Integrative Sciences Institute - Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal
| | - Carlos Correia
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, Quinta de Prados, 5000-801, Vila Real, Portugal.
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Griffith EK, Ingall ED, Morton PL, Tavakoli DA, Lai B. Zinc K-edge XANES spectroscopy of mineral and organic standards. JOURNAL OF SYNCHROTRON RADIATION 2019; 26:1302-1309. [PMID: 31274458 PMCID: PMC6613124 DOI: 10.1107/s160057751900540x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 04/19/2019] [Indexed: 05/18/2023]
Abstract
Zinc K-edge X-ray absorption near-edge (XANES) spectroscopy was conducted on 40 zinc mineral samples and organic compounds. The K-edge position varied from 9660.5 to 9666.0 eV and a variety of distinctive peaks at higher post-edge energies were exhibited by the materials. Zinc is in the +2 oxidation state in all analyzed materials, thus the variations in edge position and post-edge features reflect changes in zinc coordination. For some minerals, multiple specimens from different localities as well as pure forms from chemical supply companies were examined. These specimens had nearly identical K-edge and post-edge peak positions with only minor variation in the intensity of the post-edge peaks. This suggests that typical compositional variations in natural materials do not strongly affect spectral characteristics. Organic zinc compounds also exhibited a range of edge positions and post-edge features; however, organic compounds with similar zinc coordination structures had nearly identical spectra. Zinc XANES spectral patterns will allow identification of unknown zinc-containing minerals and organic phases in future studies.
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Affiliation(s)
- Erin K. Griffith
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Dr NW, Atlanta, GA 30332-0340, USA
| | - Ellery D. Ingall
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Dr NW, Atlanta, GA 30332-0340, USA
| | - Peter L. Morton
- Geochemistry, National High Magnetic Field Laboratory, 1800 E Paul Dirac Dr, Tallahassee, FL 32310, USA
| | - David A. Tavakoli
- Materials Characterization Facility, Georgia Institute of Technology, 345 Ferst Dr NW, Atlanta, GA 30332-1000, USA
| | - Barry Lai
- Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
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48
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Avellan A, Yun J, Zhang Y, Spielman-Sun E, Unrine JM, Thieme J, Li J, Lombi E, Bland G, Lowry GV. Nanoparticle Size and Coating Chemistry Control Foliar Uptake Pathways, Translocation, and Leaf-to-Rhizosphere Transport in Wheat. ACS NANO 2019; 13:5291-5305. [PMID: 31074967 DOI: 10.1021/acsnano.8b09781] [Citation(s) in RCA: 210] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Nanoenabled foliar-applied agrochemicals can potentially be safer and more efficient than conventional products. However, limited understanding about how nanoparticle properties influence their interactions with plant leaves, uptake, translocation through the mesophyll to the vasculature, and transport to the rest of the plant prevents rational design. This study used a combination of Au quantification and spatial analysis to investigate how size (3, 10, or 50 nm) and coating chemistry (PVP versus citrate) of gold nanoparticles (AuNPs) influence these processes. Following wheat foliar exposure to AuNPs suspensions (∼280 ng per plant), adhesion on the leaf surface was increased for smaller sizes, and PVP-AuNPs compared to citrate-AuNPs. After 2 weeks, there was incomplete uptake of citrate-AuNPs with some AuNPs remaining on the outside of the cuticle layer. However, the fraction of citrate-AuNPs that had entered the leaf was translocated efficiently to the plant vasculature. In contrast, for similar sizes, virtually all of the PVP-AuNPs crossed the cuticle layer after 2 weeks, but its transport through the mesophyll cells was lower. As a consequence of PVP-AuNP accumulation in the leaf mesophyll, wheat photosynthesis was impaired. Regardless of their coating and sizes, the majority of the transported AuNPs accumulated in younger shoots (10-30%) and in roots (10-25%), and 5-15% of the NPs <50 nm were exuded into the rhizosphere soil. A greater fraction of larger sizes AuNPs (presenting lower ζ potentials) was transported to the roots. The key hypotheses about the NPs physical-chemical and plant physiology parameters that may matter to predict leaf-to-rhizosphere transport are also discussed.
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Affiliation(s)
- Astrid Avellan
- Civil and Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - Jie Yun
- Civil and Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - Yilin Zhang
- Civil and Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - Eleanor Spielman-Sun
- Civil and Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - Jason M Unrine
- Department of Plant and Soil Sciences , University of Kentucky , Lexington , Kentucky 40546 , United States
| | - Juergen Thieme
- NSLS-II, Brookhaven National Laboratory , Brookhaven , New York 11973 , United States
| | - Jieran Li
- Department of Plant and Soil Sciences , University of Kentucky , Lexington , Kentucky 40546 , United States
| | - Enzo Lombi
- Future Industries Institute , University of South Australia , Mawson Lakes , South Australia 5095 , Australia
| | - Garret Bland
- Civil and Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - Gregory V Lowry
- Civil and Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
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49
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Kopittke PM, Punshon T, Paterson DJ, Tappero RV, Wang P, Blamey FPC, van der Ent A, Lombi E. Synchrotron-Based X-Ray Fluorescence Microscopy as a Technique for Imaging of Elements in Plants. PLANT PHYSIOLOGY 2018; 178:507-523. [PMID: 30108140 PMCID: PMC6181034 DOI: 10.1104/pp.18.00759] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 08/07/2018] [Indexed: 05/06/2023]
Abstract
Understanding the distribution of elements within plant tissues is important across a range of fields in plant science. In this review, we examine synchrotron-based x-ray fluorescence microscopy (XFM) as an elemental imaging technique in plant sciences, considering both its historical and current uses as well as discussing emerging approaches. XFM offers several unique capabilities of interest to plant scientists, including in vivo analyses at room temperature and pressure, good detection limits (approximately 1-100 mg kg-1), and excellent resolution (down to 50 nm). This has permitted its use in a range of studies, including for functional characterization in molecular biology, examining the distribution of nutrients in food products, understanding the movement of foliar fertilizers, investigating the behavior of engineered nanoparticles, elucidating the toxic effects of metal(loid)s in agronomic plant species, and studying the unique properties of hyperaccumulating plants. We anticipate that continuing technological advances at XFM beamlines also will provide new opportunities moving into the future, such as for high-throughput screening in molecular biology, the use of exotic metal tags for protein localization, and enabling time-resolved, in vivo analyses of living plants. By examining current and potential future applications, we hope to encourage further XFM studies in plant sciences by highlighting the versatility of this approach.
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Affiliation(s)
- Peter M Kopittke
- University of Queensland, School of Agriculture and Food Sciences, St. Lucia, Queensland 4072, Australia
| | - Tracy Punshon
- Dartmouth College, Department of Biological Sciences, Life Science Center, Hanover, New Hampshire 03755
| | | | - Ryan V Tappero
- Brookhaven National Laboratory, Photon Sciences Division, Upton, New York 11973
| | - Peng Wang
- Nanjing Agricultural University, College of Resources and Environmental Sciences, Nanjing 210095, China
- University of Queensland, Centre for Soil and Environmental Research, School of Agriculture and Food Sciences, St. Lucia, Queensland 4072, Australia
| | - F Pax C Blamey
- University of Queensland, School of Agriculture and Food Sciences, St. Lucia, Queensland 4072, Australia
| | - Antony van der Ent
- University of Queensland, Centre for Mined Land Rehabilitation, Sustainable Minerals Institute, St. Lucia, Queensland 4072, Australia
| | - Enzo Lombi
- University of South Australia, Future Industries Institute, Mawson Lakes, South Australia 5095, Australia
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