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Starič P, Kolmanič A, Junkar I, Vogel-Mikuš K. Chemical alterations of grain surface by cold plasma technology: Comparison of buckwheat and wheat grain responses to oxygen low-pressure plasma. Heliyon 2023; 9:e20215. [PMID: 37809366 PMCID: PMC10559984 DOI: 10.1016/j.heliyon.2023.e20215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/18/2023] [Accepted: 09/13/2023] [Indexed: 10/10/2023] Open
Abstract
Cold plasma (CP) has a great potential for decontamination or improvement of grain germination. However, disputing results have been reported, as plasma treatment can affect species and varieties of grains in different ways. The differences may be due to the chemical composition of grain pericarps, the structure of the grains and metabolic response mechanisms. CP treatment decreased grain germination rate, speed and activity of α-amylase of buckwheat grains. Such effects on both varieties of wheat grains were present after longer exposure to plasma. Lipid peroxidation was highest in buckwheat grains, whereas wheat grains were less affected. Plasma-treated Gorolka variety exhibited a low level of lipid peroxidation, no different to untreated grains, compared to Primorka grains, where longer treatment triggered higher levels of lipid peroxidation. The response of grains to CP treatment depends on the chemical and structural properties of grains pericarp, as well as plant tolerance to certain abiotic conditions.
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Affiliation(s)
- Pia Starič
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva ulica 101, Ljubljana, Slovenia
- Institute Jožef Stefan, Jamova cesta 39, Ljubljana, Slovenia
| | - Aleš Kolmanič
- Agricultural Institute of Slovenia, Hacquetova ulica 17, Ljubljana, Slovenia
| | - Ita Junkar
- Institute Jožef Stefan, Jamova cesta 39, Ljubljana, Slovenia
| | - Katarina Vogel-Mikuš
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva ulica 101, Ljubljana, Slovenia
- Institute Jožef Stefan, Jamova cesta 39, Ljubljana, Slovenia
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2
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Starič P, Remic L, Vogel-Mikuš K, Junkar I, Vavpetič P, Kelemen M, Pongrac P. Exploring the potential of cold plasma treatment followed by zinc-priming for biofortification of buckwheat sprouts. Front Nutr 2023; 10:1151101. [PMID: 37215205 PMCID: PMC10196170 DOI: 10.3389/fnut.2023.1151101] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 04/19/2023] [Indexed: 05/24/2023] Open
Abstract
Increasing the concentration of an element in edible produce (i.e., biofortification) can mitigate the element deficiency in humans. Sprouts are small but popular part of healthy diets providing vitamins and essential elements throughout the year. Element composition of sprouts can easily be amended, e.g., by soaking the grains in element-rich solution before germination (grain-priming). In addition, pre-treatment of grains to improve element translocation from the solution into the grain may further enhance the element concentration in the sprout. Cold plasma technique could provide such solution, as it increases wettability and water uptake of grains. Grains of common buckwheat (Fogopyrum esculentum Moench) were pre-treated/ untreated with cold plasma and soaked in ZnCl2 solution/pure water. Germination tests, α-amylase activity, grain hydrophilic properties and water uptake were assessed. Element composition of grain tissues and of sprouts was assessed by micro-particle-induced-X-ray emission and X-ray fluorescence spectroscopy, respectively. Grain-priming increased Zn concentration in shoots of common buckwheat sprouts more than five-times, namely from 79 to 423 mg Zn kg-1 dry weight. Cold plasma treatment increased grain wettability and water uptake into the grain. However, cold plasma pre-treatment followed by grain-priming with ZnCl2 did not increase Zn concentration in different grain tissues or in the sprouts more than the priming alone, but rather decreased the Zn concentration in sprout shoots (average ± standard error: 216 ± 6.13 and 174 ± 7.57 mg Zn kg-1 dry weight, respectively). When the fresh weight portion of whole sprouts (i.e., of roots and shoots) was considered, comparable average requirements of Zn, namely 24.5 % and 35 % for adult men and women would be satisfied by consuming cold plasma pre-treated and not pre-treated grains. Potential advantages of cold plasma pre-treatment need to be tested further, mainly to optimize the duration of soaking required to produce Zn-enriched sprouts.
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Affiliation(s)
- Pia Starič
- Jožef Stefan Institute, Ljubljana, Slovenia
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Lucija Remic
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Katarina Vogel-Mikuš
- Jožef Stefan Institute, Ljubljana, Slovenia
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Ita Junkar
- Jožef Stefan Institute, Ljubljana, Slovenia
| | | | | | - Paula Pongrac
- Jožef Stefan Institute, Ljubljana, Slovenia
- Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
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3
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Costa C, De Jesus J, Nikula C, Murta T, Grime GW, Palitsin V, Dartois V, Firat K, Webb R, Bunch J, Bailey MJ. A Multimodal Desorption Electrospray Ionisation Workflow Enabling Visualisation of Lipids and Biologically Relevant Elements in a Single Tissue Section. Metabolites 2023; 13:metabo13020262. [PMID: 36837881 PMCID: PMC9964958 DOI: 10.3390/metabo13020262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 02/07/2023] [Accepted: 02/09/2023] [Indexed: 02/15/2023] Open
Abstract
The colocation of elemental species with host biomolecules such as lipids and metabolites may shed new light on the dysregulation of metabolic pathways and how these affect disease pathogeneses. Alkali metals have been the subject of extensive research, are implicated in various neurodegenerative and infectious diseases and are known to disrupt lipid metabolism. Desorption electrospray ionisation (DESI) is a widely used approach for molecular imaging, but previous work has shown that DESI delocalises ions such as potassium (K) and chlorine (Cl), precluding the subsequent elemental analysis of the same section of tissue. The solvent typically used for the DESI electrospray is a combination of methanol and water. Here we show that a novel solvent system, (50:50 (%v/v) MeOH:EtOH) does not delocalise elemental species and thus enables elemental mapping to be performed on the same tissue section post-DESI. Benchmarking the MeOH:EtOH electrospray solvent against the widely used MeOH:H2O electrospray solvent revealed that the MeOH:EtOH solvent yielded increased signal-to-noise ratios for selected lipids. The developed multimodal imaging workflow was applied to a lung tissue section containing a tuberculosis granuloma, showcasing its applicability to elementally rich samples displaying defined structural information.
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Affiliation(s)
- Catia Costa
- University of Surrey Ion Beam Centre, Guildford GU2 7XH, UK
| | - Janella De Jesus
- Department of Chemistry, University of Surrey, Guildford GU2 7XH, UK
- The National Physical Laboratory, Teddington TW11 0LW, UK
| | - Chelsea Nikula
- The National Physical Laboratory, Teddington TW11 0LW, UK
| | - Teresa Murta
- The National Physical Laboratory, Teddington TW11 0LW, UK
| | | | | | - Véronique Dartois
- Center for Discovery and Innovation, Hackensack Meridian School of Medicine, Nutley, NJ 07110, USA
| | - Kaya Firat
- Center for Discovery and Innovation, Hackensack Meridian School of Medicine, Nutley, NJ 07110, USA
| | - Roger Webb
- University of Surrey Ion Beam Centre, Guildford GU2 7XH, UK
| | | | - Melanie J. Bailey
- University of Surrey Ion Beam Centre, Guildford GU2 7XH, UK
- Department of Chemistry, University of Surrey, Guildford GU2 7XH, UK
- Correspondence: ; Tel.: +44-(0)1483682593
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4
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Pongrac P, Kelemen M, Vogel-Mikuš K, Vavpetič P, Pelicon P, Žurga P, Vidović N, Polić Pasković M, Smiljana GB, Lukić I, Pasković I. Tissue-specific calcium and magnesium allocation to explain differences in bulk concentration in leaves of one-year-old seedlings of two olive (Olea europaea L.) cultivars. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 194:619-626. [PMID: 36535101 DOI: 10.1016/j.plaphy.2022.11.040] [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: 07/27/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Olive tree (Olea europaea L.) leaves have recently been recognised as a valuable source in cosmetic and pharmaceutical industry as well as in preparation of health-supporting beverages. Little is known about the element composition of olive leaves and almost nothing about tissue-specific allocation of elements. Element composition and tissue-specific distribution were determined in leaves of two olive cultivars, Leccino and Istarska bjelica using micro-particle induced X-ray emission (micro-PIXE). In leaves of the Istarska bjelica cultivar larger bulk concentrations of potassium, sodium, molybdenum and boron, but smaller concentrations of calcium and magnesium were found than in leaves of the Leccino cultivar. Tissue-specific investigation revealed that larger concentration of calcium in epidermis and in leaf blade tissues (secondary veins, palisade and spongy mesophyll) contributed to the larger leaf bulk calcium concentration in the Leccino cultivar. For magnesium, all leaf tissues, except the bundle sheath cells and consequently the main vascular bundle, contributed to the larger bulk concentration in the Leccino cultivar. Potassium was not predominant in any of the leaf tissues examined, while sodium and molybdenum were below the limit of detection, and boron not detectable by micro-PIXE. The results indicate that sinks for calcium and magnesium are stronger in specific leaf tissues of the Leccino than of the Istarska bjelica cultivar. The new understanding of tissue-specific allocation of elements in leaves of olive will serve as a basis for detailed studies into the effects of foliar and/or soil fertilisers in olive.
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Affiliation(s)
- Paula Pongrac
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000, Ljubljana, Slovenia; Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia.
| | - Mitja Kelemen
- Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Katarina Vogel-Mikuš
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000, Ljubljana, Slovenia; Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Primož Vavpetič
- Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Primož Pelicon
- Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Paula Žurga
- Teaching Institute of Public Health Primorsko-Goranska County, Krešimirova 52a, 51000, Rijeka, Croatia
| | - Nikolina Vidović
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, K. Huguesa 8, 52440, Poreč, Croatia
| | - Marija Polić Pasković
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, K. Huguesa 8, 52440, Poreč, Croatia
| | - Goreta Ban Smiljana
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, K. Huguesa 8, 52440, Poreč, Croatia; Centre of Excellence for Biodiversity and Molecular Plant Breeding, Svetošimunska 25, 10000, Zagreb, Croatia
| | - Igor Lukić
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, K. Huguesa 8, 52440, Poreč, Croatia; Centre of Excellence for Biodiversity and Molecular Plant Breeding, Svetošimunska 25, 10000, Zagreb, Croatia
| | - Igor Pasković
- Department of Agriculture and Nutrition, Institute of Agriculture and Tourism, K. Huguesa 8, 52440, Poreč, Croatia
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Chen Z, Hu B, Hu S, Vogel-Mikuš K, Pongrac P, Vymazal J. Immobilization of chromium enhanced by arbuscular mycorrhizal fungi in semi-aquatic habitats with biochar addition. JOURNAL OF HAZARDOUS MATERIALS 2022; 439:129562. [PMID: 35868083 DOI: 10.1016/j.jhazmat.2022.129562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/24/2022] [Accepted: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) exhibit great potential in heavy-metal immobilization in semi-aquatic habitats. Under high heavy-metal stress, however, the role of AMF is limited, and the detoxification mechanism of AMF in heavy metals' stabilization remains unclear. This study investigated the effects of AMF on a wetland plant (Iris pseudacorus) and chromium (Cr) immobilization at different water depths in semi-aquatic habitats with biochar addition. Results showed that AMF increased the physiological and photosynthetic functions in I. pseudacorus under Cr exposures. Besides, AMF alleviated the accumulation of reactive oxygen species and lipid peroxidation by enhancing the antioxidant enzyme activities. AMF and biochar significantly decreased Cr concentrations in outlet water and increased Cr accumulation in I. pseudacorus. Besides, biochar also vastly improved Cr accumulation in the substrate under the fluctuating water depth. AMF reduced Cr bioavailability in the substrate, with Cr (Ⅵ) concentrations and acid-soluble forms of Cr decreased by 0.3-64.5% and 19.0-40.8%, respectively. Micro-proton-induced X-ray emission was used to determine element localization and revealed that AMF improved the nutrients uptake by wetland plants and inhibited Cr translocation from roots to shoots. Overall, this study demonstrated that the interaction between AMF and biochar could significantly enhance the immobilization of high Cr concentrations in semi-aquatic habitats.
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Affiliation(s)
- Zhongbing Chen
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol 16500, Czech Republic
| | - Bo Hu
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol 16500, Czech Republic
| | - Shanshan Hu
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol 16500, Czech Republic.
| | - Katarina Vogel-Mikuš
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva ulica 101, 1000 Ljubljana, Slovenia; Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
| | - Paula Pongrac
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva ulica 101, 1000 Ljubljana, Slovenia; Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia
| | - Jan Vymazal
- Department of Applied Ecology, Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha-Suchdol 16500, Czech Republic
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6
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Vogel-Mikuš K, Pongrac P. Imaging of Potassium and Calcium Distribution in Plant Tissues and Cells to Monitor Stress Response and Programmed Cell Death. Methods Mol Biol 2022; 2447:233-246. [PMID: 35583786 DOI: 10.1007/978-1-0716-2079-3_19] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In plants, the response to stress, such as salinity, pathogen attack, drought, high concentration of metals, hyperthermia, and hypothermia, is usually accompanied by potassium ion (K+) leakage from the cytosol to the cell wall, mediated by plasma membrane cation conductivity. Stress-induced electrolyte leakage co-occurs with accumulation of reactive oxygen species (ROS) and calcium ions (Ca2+) and often results in programmed cell death (PCD). The development of X-ray and mass spectrometry (MS) based imaging techniques has enabled insight into the spatial tissue and cell-specific redistribution of major and trace elements during the stress response. In this chapter a workflow for sample preparation, imaging, and image analysis by X-ray and MS based techniques is presented.
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Affiliation(s)
- Katarina Vogel-Mikuš
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia.
- Jozef Stefan Institute, Ljubljana, Slovenia.
| | - Paula Pongrac
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
- Jozef Stefan Institute, Ljubljana, Slovenia
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7
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Dauer Née Joppe K, Tatenhorst L, Caldi Gomes L, Zhang S, Parvaz M, Carboni E, Roser AE, El DeBakey H, Bähr M, Vogel-Mikuš K, Wang Ip C, Becker S, Zweckstetter M, Lingor P. Brain iron enrichment attenuates α-synuclein spreading after injection of preformed fibrils. J Neurochem 2021; 159:554-573. [PMID: 34176164 DOI: 10.1111/jnc.15461] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 06/22/2021] [Accepted: 06/23/2021] [Indexed: 12/12/2022]
Abstract
Regional iron accumulation and α-synuclein (α-syn) spreading pathology within the central nervous system are common pathological findings in Parkinson's disease (PD). Whereas iron is known to bind to α-syn, facilitating its aggregation and regulating α-syn expression, it remains unclear if and how iron also modulates α-syn spreading. To elucidate the influence of iron on the propagation of α-syn pathology, we investigated α-syn spreading after stereotactic injection of α-syn preformed fibrils (PFFs) into the striatum of mouse brains after neonatal brain iron enrichment. C57Bl/6J mouse pups received oral gavage with 60, 120, or 240 mg/kg carbonyl iron or vehicle between postnatal days 10 and 17. At 12 weeks of age, intrastriatal injections of 5-µg PFFs were performed to induce seeding of α-syn aggregates. At 90 days post-injection, PFFs-injected mice displayed long-term memory deficits, without affection of motor behavior. Interestingly, quantification of α-syn phosphorylated at S129 showed reduced α-syn pathology and attenuated spreading to connectome-specific brain regions after brain iron enrichment. Furthermore, PFFs injection caused intrastriatal microglia accumulation, which was alleviated by iron in a dose-dependent way. In primary cortical neurons in a microfluidic chamber model in vitro, iron application did not alter trans-synaptic α-syn propagation, possibly indicating an involvement of non-neuronal cells in this process. Our study suggests that α-syn PFFs may induce cognitive deficits in mice independent of iron. However, a redistribution of α-syn aggregate pathology and reduction of striatal microglia accumulation in the mouse brain may be mediated via iron-induced alterations of the brain connectome.
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Affiliation(s)
- Karina Dauer Née Joppe
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
| | - Lars Tatenhorst
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
| | - Lucas Caldi Gomes
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
- Department of Neurology, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Shuyu Zhang
- Department of Neurology, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Mojan Parvaz
- Department of Neurology, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Eleonora Carboni
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
| | - Anna-Elisa Roser
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
| | - Hazem El DeBakey
- Department of Neurology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Mathias Bähr
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Goettingen, Goettingen, Germany
| | - Katarina Vogel-Mikuš
- Biotechnical faculty, University of Ljubljana, Ljubljana, Slovenia
- Jozef Stefan Institute, Ljubljana, Slovenia
| | - Chi Wang Ip
- Department of Neurology, University Hospital of Wuerzburg, Wuerzburg, Germany
| | - Stefan Becker
- Department of NMR Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
| | - Markus Zweckstetter
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), Goettingen, Germany
- Research group Mass Spectrometry, Max Planck Institute for Biophysical Chemistry, Goettingen, Germany
| | - Paul Lingor
- Department of Neurology, University Medical Center Goettingen, Goettingen, Germany
- Center for Biostructural Imaging of Neurodegeneration, University Medical Center Goettingen, Goettingen, Germany
- Department of Neurology, School of Medicine, University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
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8
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Alcock TD, Thomas CL, Ó Lochlainn S, Pongrac P, Wilson M, Moore C, Reyt G, Vogel-Mikuš K, Kelemen M, Hayden R, Wilson L, Stephenson P, Østergaard L, Irwin JA, Hammond JP, King GJ, Salt DE, Graham NS, White PJ, Broadley MR. Magnesium and calcium overaccumulate in the leaves of a schengen3 mutant of Brassica rapa. PLANT PHYSIOLOGY 2021; 186:1616-1631. [PMID: 33831190 PMCID: PMC8260142 DOI: 10.1093/plphys/kiab150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 03/12/2021] [Indexed: 05/04/2023]
Abstract
Magnesium (Mg) and calcium (Ca) are essential mineral nutrients poorly supplied in many human food systems. In grazing livestock, Mg and Ca deficiencies are costly welfare issues. Here, we report a Brassica rapa loss-of-function schengen3 (sgn3) mutant, braA.sgn3.a-1, which accumulates twice as much Mg and a third more Ca in its leaves. We mapped braA.sgn3.a to a single recessive locus using a forward ionomic screen of chemically mutagenized lines with subsequent backcrossing and linked-read sequencing of second back-crossed, second filial generation (BC2F2) segregants. Confocal imaging revealed a disrupted root endodermal diffusion barrier, consistent with SGN3 encoding a receptor-like kinase required for normal formation of Casparian strips, as reported in thale cress (Arabidopsis thaliana). Analysis of the spatial distribution of elements showed elevated extracellular Mg concentrations in leaves of braA.sgn3.a-1, hypothesized to result from preferential export of excessive Mg from cells to ensure suitable cellular concentrations. This work confirms a conserved role of SGN3 in controlling nutrient homeostasis in B. rapa, and reveals mechanisms by which plants are able to deal with perturbed shoot element concentrations resulting from a "leaky" root endodermal barrier. Characterization of variation in leaf Mg and Ca accumulation across a mutagenized population of B. rapa shows promise for using such populations in breeding programs to increase edible concentrations of essential human and animal nutrients.
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Affiliation(s)
- Thomas D Alcock
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
- Future Food Beacon of Excellence, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
- School of Life Sciences, Technical University of Munich, 85354 Freising, Germany
| | - Catherine L Thomas
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
- Department of Sustainable Agriculture Sciences, Rothamsted Research, West Common, Hertfordshire AL5 2JQ, UK
| | - Seosamh Ó Lochlainn
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Paula Pongrac
- Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Michael Wilson
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
- Future Food Beacon of Excellence, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Christopher Moore
- Future Food Beacon of Excellence, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
- School of Life Sciences, University of Nottingham, Queen’s Medical Centre, Nottingham NG7 2UH, UK
| | - Guilhem Reyt
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
- Future Food Beacon of Excellence, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Katarina Vogel-Mikuš
- Jožef Stefan Institute, 1000 Ljubljana, Slovenia
- Biotechnical Faculty, University of Ljubljana, 1000 Ljubljana, Slovenia
| | | | - Rory Hayden
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Lolita Wilson
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Pauline Stephenson
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Lars Østergaard
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - Judith A Irwin
- Department of Crop Genetics, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK
| | - John P Hammond
- School of Agriculture, Policy and Development and the Centre for Food Security, University of Reading, Whiteknights, P.O. Box 237, Reading RG6 6AR, UK
- Southern Cross Plant Science, Southern Cross University, Lismore, New South Wales 2480, Australia
| | - Graham J King
- Southern Cross Plant Science, Southern Cross University, Lismore, New South Wales 2480, Australia
| | - David E Salt
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
- Future Food Beacon of Excellence, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Neil S Graham
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
| | - Philip J White
- Ecological Sciences, The James Hutton Institute, Invergowrie, Dundee DD2 5DA, UK
- Distinguished Scientist Fellowship Program, King Saud University, Riyadh 11451, Saudi Arabia
| | - Martin R Broadley
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough LE12 5RD, UK
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9
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Detterbeck A, Pongrac P, Persson DP, Vogel-Mikuš K, Kelemen M, Vavpetič P, Pelicon P, Arčon I, Husted S, Kofod Schjoerring J, Clemens S. Temporal and Spatial Patterns of Zinc and Iron Accumulation during Barley ( Hordeum vulgare L.) Grain Development. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:12229-12240. [PMID: 33070613 DOI: 10.1021/acs.jafc.0c04833] [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] [Indexed: 06/11/2023]
Abstract
Breeding and engineering of biofortified crops will benefit from a better understanding of bottlenecks controlling micronutrient loading within the seeds. However, few studies have addressed the changes in micronutrient concentrations, localization, and speciation occurring over time. Therefore, we studied spatial patterns of zinc and iron accumulation during grain development in two barley lines with contrasting grain zinc concentrations. Microparticle-induced-X-ray emission and laser ablation-inductively coupled plasma mass spectrometry were used to determine tissue-specific accumulation of zinc, iron, phosphorus, and sulfur. Differences in zinc accumulation between the lines were most evident in the endosperm and aleurone. A gradual decrease in zinc concentrations from the aleurone to the underlying endosperm was observed, while iron and phosphorus concentrations decreased sharply. Iron co-localized with phosphorus in the aleurone, whereas zinc co-localized with sulfur in the sub-aleurone. We hypothesize that differences in grain zinc are largely explained by the endosperm storage capacity. Engineering attempts should be targeted accordingly.
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Affiliation(s)
- Amelie Detterbeck
- Department of Plant Physiology, Bayreuth Center of Ecology and Environmental Research, University of Bayreuth, 95447 Bayreuth, Germany
| | - Paula Pongrac
- Department of Plant Physiology, Bayreuth Center of Ecology and Environmental Research, University of Bayreuth, 95447 Bayreuth, Germany
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
| | - Daniel P Persson
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark
| | - Katarina Vogel-Mikuš
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
- Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Mitja Kelemen
- Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Primož Vavpetič
- Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Primož Pelicon
- Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Iztok Arčon
- Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
- University of Nova Gorica, Vipavska 13, SI-5000 Nova Gorica, Slovenia
| | - Søren Husted
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark
| | - Jan Kofod Schjoerring
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark
| | - Stephan Clemens
- Department of Plant Physiology, Bayreuth Center of Ecology and Environmental Research, University of Bayreuth, 95447 Bayreuth, Germany
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10
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Pongrac P, Castillo-Michel H, Reyes-Herrera J, Hancock RD, Fischer S, Kelemen M, Thompson JA, Wright G, Likar M, Broadley MR, Vavpetič P, Pelicon P, White PJ. Effect of phosphorus supply on root traits of two Brassica oleracea L. genotypes. BMC PLANT BIOLOGY 2020; 20:368. [PMID: 32758143 PMCID: PMC7404929 DOI: 10.1186/s12870-020-02558-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Accepted: 07/19/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Phosphorus (P) deficiency limits crop production worldwide. Crops differ in their ability to acquire and utilise the P available. The aim of this study was to determine root traits (root exudates, root system architecture (RSA), tissue-specific allocation of P, and gene expression in roots) that (a) play a role in P-use efficiency and (b) contribute to large shoot zinc (Zn) concentration in Brassica oleracea. RESULTS Two B. oleracea accessions (var. sabellica C6, a kale, and var. italica F103, a broccoli) were grown in a hydroponic system or in a high-throughput-root phenotyping (HTRP) system where they received Low P (0.025 mM) or High P (0.25 mM) supply for 2 weeks. In hydroponics, root and shoot P and Zn concentrations were measured, root exudates were profiled using both Fourier-Transform-Infrared spectroscopy and gas-chromatography-mass spectrometry and previously published RNAseq data from roots was re-examined. In HTRP experiments, RSA (main and lateral root number and lateral root length) was assessed and the tissue-specific distribution of P was determined using micro-particle-induced-X-ray emission. The C6 accession had greater root and shoot biomass than the F103 accession, but the latter had a larger shoot P concentration than the C6 accession, regardless of the P supply in the hydroponic system. The F103 accession had a larger shoot Zn concentration than the C6 accession in the High P treatment. Although the F103 accession had a larger number of lateral roots, which were also longer than in the C6 accession, the C6 accession released a larger quantity and number of polar compounds than the F103 accession. A larger number of P-responsive genes were found in the Low P treatment in roots of the F103 accession than in roots of the C6 accession. Expression of genes linked with "phosphate starvation" was up-regulated, while those linked with iron homeostasis were down-regulated in the Low P treatment. CONCLUSIONS The results illustrate large within-species variability in root acclimatory responses to P supply in the composition of root exudates, RSA and gene expression, but not in P distribution in root cross sections, enabling P sufficiency in the two B. oleracea accessions studied.
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Affiliation(s)
- Paula Pongrac
- Ecological Science Group, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK.
- Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia.
| | | | | | - Robert D Hancock
- Cell and Molecular Sciences, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | - Sina Fischer
- Future Food Beacon of Excellence and the School of Biosciences, University of Nottingham, Nottingham, LE12 5RD, UK
| | - Mitja Kelemen
- Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
- Jožef Stefan International Postgraduate School, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Jacqueline A Thompson
- Ecological Science Group, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | - Gladys Wright
- Ecological Science Group, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | - Matevž Likar
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000, Ljubljana, Slovenia
| | - Martin R Broadley
- Plant and Crop Sciences Division, University of Nottingham, Loughborough, LE12 5RD, UK
| | - Primož Vavpetič
- Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Primož Pelicon
- Jožef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Philip J White
- Ecological Science Group, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
- Distinguished Scientist Fellowship Program, King Saud University, Riyadh, 11451, Saudi Arabia
- College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China
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11
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Fourati E, Vogel-Mikuš K, Wali M, Kavčič A, Gomilšek JP, Kodre A, Kelemen M, Vavpetič P, Pelicon P, Abdelly C, Ghnaya T. Nickel tolerance and toxicity mechanisms in the halophyte Sesuvium portulacastrum L. as revealed by Ni localization and ligand environment studies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:23402-23410. [PMID: 31119536 DOI: 10.1007/s11356-019-05209-8] [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: 10/29/2018] [Accepted: 04/15/2019] [Indexed: 06/09/2023]
Abstract
Halophytes are able to tolerate relatively high concentrations of hazardous metals in a growing substrate, what makes them suitable candidates for phytoremediation of metal-contaminated soils. In this work, we aimed to study the physiological responses of the halophyte Sesuvium portulacastrum L. to Ni, with main focus on Ni localization, compartmentation and ligand environment, to decipher Ni tolerance and toxicity mechanisms. Seedlings were grown in hydroponic nutrient solution containing 0, 25, 50 and 100 μM Ni as NiCl2 for 3 weeks. Ni localization in leaves was assessed by micro-proton-induced X-ray emission (micro-PIXE). Ni ligand environment was studied by Ni K-edge X-ray absorption near edge structure (XANES). In addition, Ni-soluble, weakly bound/exchangeable and insoluble leaf tissue fractions were determined by sequential extraction. Results show that S. portulacastrum is able to tolerate up to ~ 500 μg g-1 dry weight (DW) of Ni in the shoots without significant growth reduction. At higher Ni concentrations (> 50 μM Ni in nutrient solution), chloroses were observed due to the accumulation of Ni in photosynthetically active chlorenchyma as revealed by micro-PIXE. Water storage tissue represented the main pool for Ni storage. Incorporation of Ni into Ca-oxalate crystals was also observed in some specimens, conferring tolerance to high leaf Ni concentrations. The majority of Ni (> 70%) was found in soluble tissue fraction. Ni K XANES revealed Ni bound mainly to O- (55%) and N-ligands (45%). Ni toxicity at higher Ni levels was associated with Ni binding to amino groups of proteins in cytosol of chlorenchyma and increased level of lipid peroxidation. Proline levels also increased at high Ni exposures and were associated with Ni-induced oxidative stress and alteration of water regime.
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Affiliation(s)
- Emna Fourati
- Faculty of Sciences Tunis, Campus Universitaire Tunis - El Manar, 2092, Tunis, Tunisia
- Laboratory of Extremophile Plants, Biotechnology Center of Borj Cédria, Box 901, 20150, Hammam-Lif, Tunis, Tunisia
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - Katarina Vogel-Mikuš
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
- Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
| | - Mariem Wali
- Laboratory of Extremophile Plants, Biotechnology Center of Borj Cédria, Box 901, 20150, Hammam-Lif, Tunis, Tunisia
| | - Anja Kavčič
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000, Ljubljana, Slovenia
| | - Jana Padežnik Gomilšek
- Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000, Maribor, Slovenia
| | - Alojz Kodre
- Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
- Faculty for Mathematics and Physics, University of Ljubljana, Jadranska 19, 1000, Ljubljana, Slovenia
| | - Mitja Kelemen
- Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
| | - Primož Vavpetič
- Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
| | - Primož Pelicon
- Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
| | - Chedly Abdelly
- Laboratory of Extremophile Plants, Biotechnology Center of Borj Cédria, Box 901, 20150, Hammam-Lif, Tunis, Tunisia
| | - Tahar Ghnaya
- Laboratory of Extremophile Plants, Biotechnology Center of Borj Cédria, Box 901, 20150, Hammam-Lif, Tunis, Tunisia.
- Higher Institute of Sciences and Techniques of Waters, University of Gabes, Erriadh City Campus - 6072 Zirig, Gabes, Tunisia.
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12
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Guerriero G, Stokes I, Valle N, Hausman JF, Exley C. Visualising Silicon in Plants: Histochemistry, Silica Sculptures and Elemental Imaging. Cells 2020; 9:cells9041066. [PMID: 32344677 PMCID: PMC7225990 DOI: 10.3390/cells9041066] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/15/2020] [Accepted: 04/22/2020] [Indexed: 02/01/2023] Open
Abstract
Silicon is a non-essential element for plants and is available in biota as silicic acid. Its presence has been associated with a general improvement of plant vigour and response to exogenous stresses. Plants accumulate silicon in their tissues as amorphous silica and cell walls are preferential sites. While several papers have been published on the mitigatory effects that silicon has on plants under stress, there has been less research on imaging silicon in plant tissues. Imaging offers important complementary results to molecular data, since it provides spatial information. Herein, the focus is on histochemistry coupled to optical microscopy, fluorescence and scanning electron microscopy of microwave acid extracted plant silica, techniques based on particle-induced X-ray emission, X-ray fluorescence spectrometry and mass spectrometry imaging (NanoSIMS). Sample preparation procedures will not be discussed in detail, as several reviews have already treated this subject extensively. We focus instead on the information that each technique provides by offering, for each imaging approach, examples from both silicifiers (giant horsetail and rice) and non-accumulators (Cannabis sativa L.).
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Affiliation(s)
- Gea Guerriero
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 5, rue Bommel, Z.A.E. Robert Steichen, L-4940 Hautcharage, Luxembourg;
- Correspondence: (G.G.); (C.E.); Tel.: +352-2758885096 (G.G.); +44-1782-734080 (C.E.)
| | - Ian Stokes
- The Birchall Centre, Lennard-Jones Laboratories, Keele University, Keele ST5 5BG, Staffordshire, UK;
| | - Nathalie Valle
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, L-4422 Belvaux, Luxembourg;
| | - Jean-Francois Hausman
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 5, rue Bommel, Z.A.E. Robert Steichen, L-4940 Hautcharage, Luxembourg;
| | - Christopher Exley
- The Birchall Centre, Lennard-Jones Laboratories, Keele University, Keele ST5 5BG, Staffordshire, UK;
- Correspondence: (G.G.); (C.E.); Tel.: +352-2758885096 (G.G.); +44-1782-734080 (C.E.)
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13
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Höreth S, Pongrac P, van Elteren JT, Debeljak M, Vogel-Mikuš K, Weber M, Braun M, Pietzenuk B, Pečovnik M, Vavpetič P, Pelicon P, Arčon I, Krämer U, Clemens S. Arabidopsis halleri shows hyperbioindicator behaviour for Pb and leaf Pb accumulation spatially separated from Zn. THE NEW PHYTOLOGIST 2020; 226:492-506. [PMID: 31898330 DOI: 10.1111/nph.16373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 12/01/2019] [Indexed: 05/14/2023]
Abstract
Lead (Pb) ranks among the most problematic environmental pollutants. Background contamination of soils is nearly ubiquitous, yet plant Pb accumulation is barely understood. In a survey covering 165 European populations of the metallophyte Arabidopsis halleri, several field samples had indicated Pb hyperaccumulation, offering a chance to dissect plant Pb accumulation. Accumulation of Pb was analysed in A. halleri individuals from contrasting habitats under controlled conditions to rule out aerial deposition as a source of apparent Pb accumulation. Several elemental imaging techniques were employed to study the spatial distribution and ligand environment of Pb. Regardless of genetic background, A. halleri individuals showed higher shoot Pb accumulation than A. thaliana. However, dose-response curves revealed indicator rather than hyperaccumulator behaviour. Xylem sap data and elemental imaging unequivocally demonstrated the in planta mobility of Pb. Highest Pb concentrations were found in epidermal and vascular tissues. Distribution of Pb was distinct from that of the hyperaccumulated metal zinc. Most Pb was bound by oxygen ligands in bidentate coordination. A. halleri accumulates Pb whenever soil conditions render Pb phytoavailable. Considerable Pb accumulation under such circumstances, even in leaves of A. thaliana, strongly suggests that Pb can enter food webs and may pose a food safety risk.
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Affiliation(s)
- Stephan Höreth
- Department of Plant Physiology, University of Bayreuth, 95440, Bayreuth, Germany
| | - Paula Pongrac
- Department of Plant Physiology, University of Bayreuth, 95440, Bayreuth, Germany
- Jožef Stefan Institute, 1000, Ljubljana, Slovenia
| | | | - Marta Debeljak
- National Institute of Chemistry, 1000, Ljubljana, Slovenia
| | - Katarina Vogel-Mikuš
- Jožef Stefan Institute, 1000, Ljubljana, Slovenia
- Biotechnical Faculty, University of Ljubljana, 1000, Ljubljana, Slovenia
| | - Michael Weber
- Department of Plant Physiology, University of Bayreuth, 95440, Bayreuth, Germany
| | - Manuel Braun
- Department of Plant Physiology, University of Bayreuth, 95440, Bayreuth, Germany
| | - Björn Pietzenuk
- Molecular Genetics and Physiology of Plants, Ruhr University Bochum, 44801, Bochum, Germany
| | | | | | | | - Iztok Arčon
- Jožef Stefan Institute, 1000, Ljubljana, Slovenia
- University of Nova Gorica, 5000, Nova Gorica, Slovenia
| | - Ute Krämer
- Molecular Genetics and Physiology of Plants, Ruhr University Bochum, 44801, Bochum, Germany
| | - Stephan Clemens
- Department of Plant Physiology, University of Bayreuth, 95440, Bayreuth, Germany
- Bayreuth Center for Ecology and Environmental Research, University of Bayreuth, 95440, Bayreuth, Germany
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14
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Cominelli E, Galimberti M, Pongrac P, Landoni M, Losa A, Paolo D, Daminati MG, Bollini R, Cichy KA, Vogel-Mikuš K, Sparvoli F. Calcium redistribution contributes to the hard-to-cook phenotype and increases PHA-L lectin thermal stability in common bean low phytic acid 1 mutant seeds. Food Chem 2020; 321:126680. [PMID: 32247181 DOI: 10.1016/j.foodchem.2020.126680] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 03/16/2020] [Accepted: 03/21/2020] [Indexed: 11/27/2022]
Abstract
Seed phytic acid reduces mineral bioavailability by chelating minerals. Consumption of common bean seeds with the low phytic acid 1 (lpa1) mutation improved iron status in human trials but caused adverse gastrointestinal effects, presumably due to increased stability of lectin phytohemagglutinin L (PHA-L) compared to the wild type (wt). A hard-to-cook (HTC) defect observed in lpa1 seeds intensified this problem. We quantified the HTC phenotype of lpa1 common beans with three genetic backgrounds. The HTC phenotype in the lpa1 black bean line correlated with the redistribution of calcium particularly in the cell walls, providing support for the "phytase-phytate-pectin" theory of the HTC mechanism. Furthermore, the excess of free cations in the lpa1 mutation in combination with different PHA alleles affected the stability of PHA-L lectin.
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Affiliation(s)
- Eleonora Cominelli
- Institute of Agricultural Biology and Biotechnology, CNR, Via Bassini 15, 20133 Milan, Italy.
| | - Michela Galimberti
- Institute of Agricultural Biology and Biotechnology, CNR, Via Bassini 15, 20133 Milan, Italy
| | - Paula Pongrac
- Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Michela Landoni
- Department of Biosciences, University of Milan, Via Celoria 26, 20133 Milan, Italy.
| | - Alessia Losa
- Institute of Agricultural Biology and Biotechnology, CNR, Via Bassini 15, 20133 Milan, Italy.
| | - Dario Paolo
- Institute of Agricultural Biology and Biotechnology, CNR, Via Bassini 15, 20133 Milan, Italy.
| | - Maria Gloria Daminati
- Institute of Agricultural Biology and Biotechnology, CNR, Via Bassini 15, 20133 Milan, Italy.
| | - Roberto Bollini
- Institute of Agricultural Biology and Biotechnology, CNR, Via Bassini 15, 20133 Milan, Italy.
| | - Karen A Cichy
- Sugarbeet and Bean Research Unit, Agricultural Research Service, US Department of Agriculture, 1066 Bogue Street, Michigan State University, East Lansing, MI 48824, United States.
| | - Katarina Vogel-Mikuš
- Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia; University of Ljubljana, Biotechnical Faculty, Department of Biology, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia.
| | - Francesca Sparvoli
- Institute of Agricultural Biology and Biotechnology, CNR, Via Bassini 15, 20133 Milan, Italy.
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15
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Pongrac P, Arčon I, Castillo-Michel H, Vogel-Mikuš K. Mineral Element Composition in Grain of Awned and Awnletted Wheat ( Triticum aestivum L.) Cultivars: Tissue-Specific Iron Speciation and Phytate and Non-Phytate Ligand Ratio. PLANTS 2020; 9:plants9010079. [PMID: 31936205 PMCID: PMC7020463 DOI: 10.3390/plants9010079] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/04/2020] [Accepted: 01/06/2020] [Indexed: 11/16/2022]
Abstract
In wheat (Triticum aestivum L.), the awns—the bristle-like structures extending from lemmas—are photosynthetically active. Compared to awned cultivars, awnletted cultivars produce more grains per unit area and per spike, resulting in significant reduction in grain size, but their mineral element composition remains unstudied. Nine awned and 11 awnletted cultivars were grown simultaneously in the field. With no difference in 1000-grain weight, a larger calcium and manganese—but smaller iron (Fe) concentrations—were found in whole grain of awned than in awnletted cultivars. Micro X-ray absorption near edge structure analysis of different tissues of frozen-hydrated grain cross-sections revealed that differences in total Fe concentration were not accompanied by differences in Fe speciation (64% of Fe existed as ferric and 36% as ferrous species) or Fe ligands (53% were phytate and 47% were non-phytate ligands). In contrast, there was a distinct tissue-specificity with pericarp containing the largest proportion (86%) of ferric species and nucellar projection (49%) the smallest. Phytate ligand was predominant in aleurone, scutellum and embryo (72%, 70%, and 56%, respectively), while nucellar projection and pericarp contained only non-phytate ligands. Assuming Fe bioavailability depends on Fe ligands, we conclude that Fe bioavailability from wheat grain is tissue specific.
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Affiliation(s)
- Paula Pongrac
- Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia; (I.A.); (K.V.-M.)
- Correspondence: ; Tel.: +386-51-222-963; Fax: +386-477-31-51
| | - Iztok Arčon
- Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia; (I.A.); (K.V.-M.)
- Laboratory for quantum optics, University of Nova Gorica, Vipavska 13, SI-5000 Nova Gorica, Slovenia
| | | | - Katarina Vogel-Mikuš
- Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia; (I.A.); (K.V.-M.)
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia
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16
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Contrasting allocation of magnesium, calcium and manganese in leaves of tea (Camellia sinensis (L.) Kuntze) plants may explain their different extraction efficiency into tea. Food Chem Toxicol 2020; 135:110974. [DOI: 10.1016/j.fct.2019.110974] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/11/2019] [Accepted: 11/13/2019] [Indexed: 11/23/2022]
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17
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Kavčič A, Mikuš K, Debeljak M, Teun van Elteren J, Arčon I, Kodre A, Kump P, Karydas AG, Migliori A, Czyzycki M, Vogel-Mikuš K. Localization, ligand environment, bioavailability and toxicity of mercury in Boletus spp. and Scutiger pes-caprae mushrooms. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 184:109623. [PMID: 31518823 DOI: 10.1016/j.ecoenv.2019.109623] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 08/16/2019] [Accepted: 08/28/2019] [Indexed: 05/22/2023]
Abstract
This study provides information on mercury (Hg) localization, speciation and ligand environment in edible mushrooms: Boletus edulis, B. aereus and Scutiger pes-caprae collected at non-polluted and Hg polluted sites, by LA-ICP-MS, SR-μ-XRF and Hg L3-edge XANES and EXAFS. Mushrooms (especially young ones) collected at Hg polluted sites can contain more than 100 μg Hg g-1 of dry mass. Imaging of the element distribution shows that Hg accumulates mainly in the spore-forming part (hymenium) of the cap. Removal of hymenium before consumption can eliminate more than 50% of accumulated Hg. Mercury is mainly coordinated to di-thiols (43-82%), followed by di-selenols (13-35%) and tetra-thiols (12-20%). Mercury bioavailability, as determined by feeding the mushrooms to Spanish slugs (known metal bioindicators owing to accumulation of metals in their digestive gland), ranged from 4% (S. pes-caprae) to 30% (B. aereus), and decreased with increasing selenium (Se) levels in the mushrooms. Elevated Hg levels in mushrooms fed to the slugs induced toxic effects, but these effects were counteracted with increasing Se concentrations in the mushrooms, pointing to a protective role of Se against Hg toxicity through HgSe complexation. Nevertheless, consumption of the studied mushroom species from Hg polluted sites should be avoided.
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Affiliation(s)
- Anja Kavčič
- University of Ljubljana, Biotechnical Faculty, Department of Biology, Jamnikarjeva 101, SI-1000, Ljubljana, Slovenia
| | - Klemen Mikuš
- Biotechnical Educational Centre Ljubljana, Cesta V Mestni Log 47, SI-1000, Ljubljana, Slovenia
| | - Marta Debeljak
- National Institute of Chemistry, Hajdrihova 19, SI-1000, Ljubljana, Slovenia
| | | | - Iztok Arčon
- Jozef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia; University of Nova Gorica, Vipavska 13, SI-5000, Nova Gorica, Slovenia
| | - Alojz Kodre
- Jozef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia; University of Ljubljana, Faculty for Mathematics and Physics, Jadranska 19, SI-1000, Ljubljana, Slovenia
| | - Peter Kump
- Jozef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia
| | - Andreas Germanos Karydas
- Institute of Nuclear and Particle Physics, National Centre for Scientific Research 'Demokritos', Patr. Grigoriou E' & 27 Neapoleos St, 153 41, Agia Paraskevi, Greece
| | - Alessandro Migliori
- Nuclear Science and Instrumentation Laboratory, International Atomic Energy Agency (IAEA) Laboratories, A-2444, Seibersdorf, Austria
| | - Mateusz Czyzycki
- Karlsruhe Institute of Technology, Institute for Photon Science and Synchrotron Radiation, Laboratory for Applications of Synchrotron Radiation, Kaiserstrasse 12, 76131, Karlsruhe, Germany; AGH University of Science and Technology, Faculty of Physics and Applied Computer Science, Al. Mickiewicza 30, 30-059, Krakow, Poland
| | - Katarina Vogel-Mikuš
- University of Ljubljana, Biotechnical Faculty, Department of Biology, Jamnikarjeva 101, SI-1000, Ljubljana, Slovenia; Jozef Stefan Institute, Jamova 39, SI-1000, Ljubljana, Slovenia.
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Eroglu S, Karaca N, Vogel-Mikus K, Kavčič A, Filiz E, Tanyolac B. The Conservation of VIT1-Dependent Iron Distribution in Seeds. FRONTIERS IN PLANT SCIENCE 2019; 10:907. [PMID: 31354774 PMCID: PMC6640190 DOI: 10.3389/fpls.2019.00907] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 06/26/2019] [Indexed: 05/31/2023]
Abstract
One third of people suffer from anemia, with iron (Fe) deficiency being the most common reason. The human diet includes seeds of staple crops, which contain Fe that is poorly bioavailable. One reason for low bioavailability is that these seeds store Fe in cellular compartments that also contain antinutrients, such as phytate. Thus, several studies have focused on decreasing phytate concentrations. In theory, as an alternative approach, Fe reserves might be directed to cellular compartments that are free of phytate, such as plastids. However, it is not known if seed plastid can represent a major Fe storage compartment in nature. To discover distinct types of Fe storage in nature, we investigated metal localizations in the seeds of more than twenty species using histochemical or X-ray based techniques. Results showed that in Rosids, the largest clade of eudicots, Fe reserves were primarily confined to the embryo of the seeds. Furthermore, inside the embryos, Fe accumulated specifically in the endodermal cell layer, a well-known feature that is mediated by VACUOLAR IRON TRANSPORTER1 (VIT1) in model plant Arabidopsis thaliana. In rice, Fe enrichment is lost around the provasculature in the mutants of VIT1 orthologs. Finally, in Carica papaya, Fe accumulated in numerous organelles resembling plastids; however, these organelles accumulated reserve proteins but not ferritin, failing to prove to be plastids. By investigating Fe distribution in distinct plant lineages, this study failed to discover distinct Fe storage patterns that can be useful for biofortification. However, it revealed Fe enrichment is widely conserved in the endodermal cell layer in a VIT1-dependent manner in the plant kingdom.
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Affiliation(s)
- Seckin Eroglu
- Department of Genetics and Bioengineering, Izmir University of Economics, Izmir, Turkey
| | - Nur Karaca
- Department of Bioengineering, Ege University, Izmir, Turkey
| | - Katarina Vogel-Mikus
- Department of Biology, University of Ljubljana, Ljubljana, Slovenia
- Jozef Stefan Institute, Ljubljana, Slovenia
| | - Anja Kavčič
- Department of Biology, University of Ljubljana, Ljubljana, Slovenia
| | - Ertugrul Filiz
- Department of Crop and Animal Production, Cilimli Vocational School, Duzce University, Duzce, Turkey
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19
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Metarapi D, Šala M, Vogel-Mikuš K, Šelih VS, van Elteren JT. Nanoparticle Analysis in Biomaterials Using Laser Ablation-Single Particle-Inductively Coupled Plasma Mass Spectrometry. Anal Chem 2019; 91:6200-6205. [PMID: 30929434 PMCID: PMC6727186 DOI: 10.1021/acs.analchem.9b00853] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
![]()
In
the past decade, the development of single particle–inductively
coupled plasma mass spectrometry (SP-ICPMS) has revolutionized the
field of nanometallomics. Besides differentiation between dissolved
and particulate metal signals, SP-ICPMS can quantify the nanoparticle
(NP) number concentration and size. Because SP-ICPMS is limited to
characterization of NPs in solution, we show how solid sampling by
laser ablation (LA) adds spatial-resolution characteristics for localized
NP analysis in biomaterials. Using custom-made gelatin standards doped
with dissolved gold and commercial or synthesized gold nanoparticles,
LA-SP-ICPMS conditions such as laser fluence, beam size, and dwell
time were optimized for NP analysis to minimize NP degradation, peak
overlap, and interferences from dissolved gold. A data-processing
algorithm to retrieve the NP number concentration and size was developed
for this purpose. As a proof-of-concept, a sunflower-root-sample cross-section,
originating from a sunflower plant exposed to gold NPs, was successfully
imaged using the optimized LA-SP-ICPMS conditions for localized NP
characterization.
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Affiliation(s)
- Dino Metarapi
- Department of Analytical Chemistry , National Institute of Chemistry , Hajdrihova 19 , SI-1000 Ljubljana , Slovenia.,Faculty of Chemistry and Chemical Technology , University of Ljubljana , Večna pot 113 , SI-1001 Ljubljana , Slovenia
| | - Martin Šala
- Department of Analytical Chemistry , National Institute of Chemistry , Hajdrihova 19 , SI-1000 Ljubljana , Slovenia
| | - Katarina Vogel-Mikuš
- Department of Biology, Biotechnical Faculty , University of Ljubljana , Jamnikarjeva 101 , SI-1000 Ljubljana , Slovenia.,Jožef Stefan Institute , Jamova 39 , SI-1000 Ljubljana , Slovenia
| | - Vid S Šelih
- Department of Analytical Chemistry , National Institute of Chemistry , Hajdrihova 19 , SI-1000 Ljubljana , Slovenia
| | - Johannes T van Elteren
- Department of Analytical Chemistry , National Institute of Chemistry , Hajdrihova 19 , SI-1000 Ljubljana , Slovenia
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20
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Fourati E, Vogel-Mikuš K, Bettaieb T, Kavčič A, Kelemen M, Vavpetič P, Pelicon P, Abdelly C, Ghnaya T. Physiological response and mineral elements accumulation pattern in Sesuvium portulacastrum L. subjected in vitro to nickel. CHEMOSPHERE 2019; 219:463-471. [PMID: 30551113 DOI: 10.1016/j.chemosphere.2018.12.081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 12/04/2018] [Accepted: 12/10/2018] [Indexed: 06/09/2023]
Abstract
Sesuvium portulacastrum, a halophyte with high tolerance to heavy metals like Cd, Pb and Ni is considered for phytoremediation of metal contaminated saline soils. The tolerance to a selected metal ion could, by hypothesis, be stimulated through in vitro adaptation and regeneration of the plant. Seedlings obtained by in vitro micro-propagation, were exposed to 0, 25 and 50 μM Ni, as NiCl2, in agar-based medium for 30 days. Growth parameters, plant water content, the concentration of photosynthetic pigments, proline and malondialdehyde (MDA) concentrations were determined. Nickel and nutrients distribution in leaves was studied by micro-Proton-Induced-X-ray-Emission (μ-PIXE). The results showed that Ni was mainly accumulated in vascular bundles, next in water storage tissues and chlorenchyma. Ni concentrations in chlorenchyma increased with increasing Ni in culturing medium, in direct relation to decrease of photosynthetic pigments and increase of oxidative stress. As compared to control plants, Ni induced substantial increase in MDA and proline accumulation. Plants exposed to 50 μM Ni accumulated up to 650 μg g-1 of Ni in the shoots, exhibiting chlorosis and necrosis and a drastically reduced plant growth. Perturbations in uptake and distribution of nutrients were observed, inducing mineral deficiency, probably through membrane leakage. The mineral nutrient disturbances induced by Ni could be highly implicated in the restriction of S. portulacastrum development under the acute 50 μM Ni level.
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Affiliation(s)
- Emna Fourati
- Université de Tunis El Manar, Tunisia; Centre de Biotechnologie de Borj Cedria (LR15CBBC02), Laboratoire des Plantes Extrèmophiles, BP 901 2050 Hammam-Lif, Tunisia; Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, 101, SI-1000 Ljubljana, Slovenia
| | - Katarina Vogel-Mikuš
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, 101, SI-1000 Ljubljana, Slovenia; Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Taoufik Bettaieb
- Département Agronomie et Biotechnologies Végétales, Institut National Agronomique de Tunisie, 43 Avenue Charles Nicolle, 1082 Tunis, Tunisia
| | - Anja Kavčič
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, 101, SI-1000 Ljubljana, Slovenia
| | - Mitja Kelemen
- Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Primož Vavpetič
- Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Primož Pelicon
- Jozef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Chedly Abdelly
- Centre de Biotechnologie de Borj Cedria (LR15CBBC02), Laboratoire des Plantes Extrèmophiles, BP 901 2050 Hammam-Lif, Tunisia
| | - Tahar Ghnaya
- Centre de Biotechnologie de Borj Cedria (LR15CBBC02), Laboratoire des Plantes Extrèmophiles, BP 901 2050 Hammam-Lif, Tunisia.
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21
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Debeljak M, van Elteren JT, Špruk A, Izmer A, Vanhaecke F, Vogel-Mikuš K. The role of arbuscular mycorrhiza in mercury and mineral nutrient uptake in maize. CHEMOSPHERE 2018; 212:1076-1084. [PMID: 30286537 DOI: 10.1016/j.chemosphere.2018.08.147] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 08/22/2018] [Accepted: 08/28/2018] [Indexed: 06/08/2023]
Abstract
This work aimed to study the role of arbuscular mycorrhizal fungi (AMF) in Hg and major mineral nutrient uptake and tissue localization of these elements in the roots of maize plants. Maize plants were grown in pots filled with non- and Hg-contaminated substrate (50 μg Hg g-1 as HgCl2) and inoculated with two types of AMF inocula: a) Glomus sp. originating from Hg-polluted soil of a former Hg smelting site in Idrija, Slovenia, and b) commercial AM inoculum Symbivit. Controls were inoculated by corresponding bacterial extracts only. Tissue localization of Hg and major mineral nutrients was performed by laser ablation-inductively coupled plasma-mass spectroscopy (LA-ICP-MS) on cryofixed and freeze-dried root cross-sections. AMF colonization increased plant biomass in non-contaminated substrate, while this effect was not seen in Hg-contaminated substrate. Hg increased total plant biomass more than AMF inoculation, possibly through hormetic effects. AMF increased Hg uptake into the roots, as well as Hg transfer to the shoots. AMF affected plant mineral nutrient uptake, depending on the type of AMF inoculum and the presence of Hg. In the roots, Hg was mainly localized in rhizodermis and endodermis, followed by the cortex and the central cylinder. Higher Hg concentrations were detected in the central cylinder of AM plants than in that of the controls, pointing to a higher Hg mobility and potential bioavailability in AMF inoculated plants.
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Affiliation(s)
- Marta Debeljak
- Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Johannes T van Elteren
- Department of Analytical Chemistry, National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia
| | - Ana Špruk
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia
| | - Andrei Izmer
- Department of Chemistry, Atomic & Mass Spectrometry A&MS Research Unit, Ghent University, Campus Sterre, Krijgslaan 281-S12, BE-9000 Ghent, Belgium
| | - Frank Vanhaecke
- Department of Chemistry, Atomic & Mass Spectrometry A&MS Research Unit, Ghent University, Campus Sterre, Krijgslaan 281-S12, BE-9000 Ghent, Belgium
| | - Katarina Vogel-Mikuš
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; Jožef Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
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22
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Wu S, Vosátka M, Vogel-Mikus K, Kavčič A, Kelemen M, Šepec L, Pelicon P, Skála R, Valero Powter AR, Teodoro M, Michálková Z, Komárek M. Nano Zero-Valent Iron Mediated Metal(loid) Uptake and Translocation by Arbuscular Mycorrhizal Symbioses. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:7640-7651. [PMID: 29894629 DOI: 10.1021/acs.est.7b05516] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nano zero-valent iron (nZVI) has great potential in the remediation of metal(loid)-contaminated soils, but its efficiency in metal(loid) stabilization in the plant-microbe continuum is unclear. This study investigated nZVI-mediated metal(loid) behavior in the arbuscular mycorrhizal (AM) fungal-maize ( Zea mays L.) plant association. Plants with AM fungal inoculation were grown in metal(loid)- (mainly Zn and Pb) contaminated soils (Litavka River, Czech Republic) amended with/without 0.5% (w/w) nZVI. The results showed that nZVI decreased plant metal(loid) uptake but inhibited AM development and its function in metal(loid) stabilization in the rhizosphere. AM fungal inoculation alleviated the physiological stresses caused by nZVI and restrained nZVI efficiency in reducing plant metal(loid) uptake. Micro proton-induced X-ray emission (μ-PIXE) analysis revealed the sequestration of Zn (possibly through binding to thiols) by fungal structures in the roots and the precipitation of Pb and Cu in the mycorrhizal root rhizodermis (possibly by Fe compounds originated from nZVI). XRD analyses further indicated that Pb/Fe mineral transformations in the rhizosphere were influenced by AM and nZVI treatments. The study revealed the counteractive effects of AM and nZVI on plant metal(loid) uptake and uncovered details of metal(loid) behavior in the AM fungal-root-nZVI system, calling into question about nZVI implementation in mycorrhizospheric systems.
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Affiliation(s)
- Songlin Wu
- Department of Environmental Geosciences, Faculty of Environmental Sciences , Czech University of Life Sciences Prague , Kamýcká 129 , 165 00 Prague-Suchdol , Czech Republic
| | - Miroslav Vosátka
- Department of Mycorrhizal Symbioses, Institute of Botany , Czech Academy of Sciences , 272 53 Pruhonice , Czech Republic
| | - Katarina Vogel-Mikus
- Department of Biology, Biotechnical Faculty , University of Ljubljana , Jamnikarjeva 101 , SI-1000 Ljubljana , Slovenia
- Jozef Stefan Institute , Jamova 39 , SI-1000 Ljubljana , Slovenia
| | - Anja Kavčič
- Department of Biology, Biotechnical Faculty , University of Ljubljana , Jamnikarjeva 101 , SI-1000 Ljubljana , Slovenia
| | - Mitja Kelemen
- Jozef Stefan Institute , Jamova 39 , SI-1000 Ljubljana , Slovenia
| | - Luka Šepec
- Jozef Stefan Institute , Jamova 39 , SI-1000 Ljubljana , Slovenia
| | - Primož Pelicon
- Jozef Stefan Institute , Jamova 39 , SI-1000 Ljubljana , Slovenia
| | - Roman Skála
- Institute of Geology of the Czech Academy of Sciences , Rozvojová 269 , CZ-165 00 Prague 6 , Czech Republic
- Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science , Charles University in Prague , Albertov 6 , CZ-128 43 Prague 2 , Czech Republic
| | - Antonio Roberto Valero Powter
- Department of Environmental Geosciences, Faculty of Environmental Sciences , Czech University of Life Sciences Prague , Kamýcká 129 , 165 00 Prague-Suchdol , Czech Republic
| | - Manuel Teodoro
- Department of Environmental Geosciences, Faculty of Environmental Sciences , Czech University of Life Sciences Prague , Kamýcká 129 , 165 00 Prague-Suchdol , Czech Republic
| | - Zuzana Michálková
- Department of Environmental Geosciences, Faculty of Environmental Sciences , Czech University of Life Sciences Prague , Kamýcká 129 , 165 00 Prague-Suchdol , Czech Republic
| | - Michael Komárek
- Department of Environmental Geosciences, Faculty of Environmental Sciences , Czech University of Life Sciences Prague , Kamýcká 129 , 165 00 Prague-Suchdol , Czech Republic
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23
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Hayes PE, Clode PL, Oliveira RS, Lambers H. Proteaceae from phosphorus-impoverished habitats preferentially allocate phosphorus to photosynthetic cells: An adaptation improving phosphorus-use efficiency. PLANT, CELL & ENVIRONMENT 2018; 41:605-619. [PMID: 29314084 DOI: 10.1111/pce.13124] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 12/03/2017] [Indexed: 05/14/2023]
Abstract
Plants allocate nutrients to specific leaf cell types; eudicots are thought to predominantly allocate phosphorus (P) to epidermal/bundle sheath cells. However, three Proteaceae species have been shown to preferentially allocate P to mesophyll cells instead. These Proteaceae species are highly adapted to P-impoverished habitats, with exceptionally high photosynthetic P-use efficiencies (PPUE). We hypothesized that preferential allocation of P to photosynthetic mesophyll cells is an important trait in species adapted to extremely P-impoverished habitats, contributing to their high PPUE. We used elemental X-ray mapping to determine leaf cell-specific nutrient concentrations for 12 Proteaceae species, from habitats of strongly contrasting soil P concentrations, in Australia, Brazil, and Chile. We found that only species from extremely P-impoverished habitats preferentially allocated P to photosynthetic mesophyll cells, suggesting it has evolved as an adaptation to their extremely P-impoverished habitat and that it is not a family-wide trait. Our results highlight the possible role of soil P in driving the evolution of ecologically relevant nutrient allocation patterns and that these patterns cannot be generalized across families. Furthermore, preferential allocation of P to photosynthetic cells may provide new and exciting strategies to improve PPUE in crop species.
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Affiliation(s)
- Patrick E Hayes
- School of Biological Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Peta L Clode
- School of Biological Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
- Centre for Microscopy, Characterisation and Analysis, The University of Western Australia, Perth, Western Australia, 6009, Australia
| | - Rafael S Oliveira
- School of Biological Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas, Campinas, 13083-862, Brazil
| | - Hans Lambers
- School of Biological Sciences, The University of Western Australia, Perth, Western Australia, 6009, Australia
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24
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Pongrac P, Serra TS, Castillo-Michel H, Vogel-Mikuš K, Arčon I, Kelemen M, Jenčič B, Kavčič A, Villafort Carvalho MT, Aarts MGM. Cadmium associates with oxalate in calcium oxalate crystals and competes with calcium for translocation to stems in the cadmium bioindicator Gomphrena claussenii. Metallomics 2018; 10:1576-1584. [DOI: 10.1039/c8mt00149a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Cd binds to oxalate crystals, where it replaces Ca in the vacuoles of a bioindicator plant Gomphrena clausenii.
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Affiliation(s)
- Paula Pongrac
- Biotechnical Faculty
- University of Ljubljana
- SI-1000 Ljubljana
- Slovenia
- Jožef Stefan Institute
| | - Tânia S. Serra
- Laboratory of Genetics
- Wageningen University and Research
- 6708 PB Wageningen
- The Netherlands
| | | | - Katarina Vogel-Mikuš
- Biotechnical Faculty
- University of Ljubljana
- SI-1000 Ljubljana
- Slovenia
- Jožef Stefan Institute
| | - Iztok Arčon
- Jožef Stefan Institute
- SI-1000 Ljubljana
- Slovenia
- University of Nova Gorica
- SI-5000 Nova Gorica
| | | | | | - Anja Kavčič
- Biotechnical Faculty
- University of Ljubljana
- SI-1000 Ljubljana
- Slovenia
| | | | - Mark G. M. Aarts
- Laboratory of Genetics
- Wageningen University and Research
- 6708 PB Wageningen
- The Netherlands
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25
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Castillo-Michel HA, Larue C, Pradas Del Real AE, Cotte M, Sarret G. Practical review on the use of synchrotron based micro- and nano- X-ray fluorescence mapping and X-ray absorption spectroscopy to investigate the interactions between plants and engineered nanomaterials. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 110:13-32. [PMID: 27475903 DOI: 10.1016/j.plaphy.2016.07.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 07/18/2016] [Accepted: 07/18/2016] [Indexed: 05/20/2023]
Abstract
The increased use of engineered nanomaterials (ENMs) in commercial products and the continuous development of novel applications, is leading to increased intentional and unintentional release of ENMs into the environment with potential negative impacts. Particularly, the partition of nanoparticles (NPs) to waste water treatment plant (WWTP) sludge represents a potential threat to agricultural ecosystems where these biosolids are being applied as fertilizers. Moreover, several applications of ENMs in agriculture and soil remediation are suggested. Therefore, detailed risk assessment should be done to evaluate possible secondary negative impacts. The impact of ENMS on plants as central component of ecosystems and worldwide food supply is of primary relevance. Understanding the fate and physical and chemical modifications of NPs in plants and their possible transfer into food chains requires specialized analytical techniques. Due to the importance of both chemical and physical factors to consider for a better understanding of ENMs behavior in complex matrices, these materials can be considered a new type of analyte. An ideal technique should require minimal sample preparation, be non-destructive, and offer the best balance between sensitivity, chemical specificity, and spatial resolution. Synchrotron radiation (SR) techniques are particularly adapted to investigate localization and speciation of ENMs in plants. SR X-ray fluorescence mapping (SR-XFM) offers multi-elemental detection with lateral resolution down to the tens of nm, in combination with spatially resolved X-ray absorption spectroscopy (XAS) speciation. This review will focus on important methodological aspects regarding sample preparation, data acquisition and data analysis of SR-XFM/XAS to investigate interactions between plants and ENMs.
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Affiliation(s)
| | - Camille Larue
- ECOLAB, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France
| | - Ana E Pradas Del Real
- European Synchrotron Radiation Facility, Beamline ID21, Grenoble 38100, France; ISTerre (Institut des Sciences de la Terre), Université Grenoble Alpes, CNRS, Grenoble 38100, France
| | - Marine Cotte
- European Synchrotron Radiation Facility, Beamline ID21, Grenoble 38100, France
| | - Geraldine Sarret
- ISTerre (Institut des Sciences de la Terre), Université Grenoble Alpes, CNRS, Grenoble 38100, France
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26
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Romano FP, Caliri C, Cosentino L, Gammino S, Mascali D, Pappalardo L, Rizzo F, Scharf O, Santos HC. Micro X-ray Fluorescence Imaging in a Tabletop Full Field-X-ray Fluorescence Instrument and in a Full Field-Particle Induced X-ray Emission End Station. Anal Chem 2016; 88:9873-9880. [DOI: 10.1021/acs.analchem.6b02811] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Francesco Paolo Romano
- CNR, Istituto per i Beni Archeologici e Monumentali, Via Biblioteca
4, 95124 Catania, Italy
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Claudia Caliri
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
- Università di Catania, Dipartimento di Fisica e Astronomia, Via A. Doria 6, 95123, Catania, Italy
| | - Luigi Cosentino
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Santo Gammino
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - David Mascali
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Lighea Pappalardo
- CNR, Istituto per i Beni Archeologici e Monumentali, Via Biblioteca
4, 95124 Catania, Italy
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Francesca Rizzo
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
- Università di Catania, Dipartimento di Fisica e Astronomia, Via A. Doria 6, 95123, Catania, Italy
| | - Oliver Scharf
- IFG Institute for Scientific Instruments GmbH, Rudower Chaussee 29/31, 12489 Berlin, Germany
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