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Fukuda N, Kitajima N, Terada Y, Abe T, Nakai I, Hokura A. Visible cellular distribution of cadmium and zinc in the hyperaccumulator Arabidopsis halleri ssp. gemmifera determined by 2-D X-ray fluorescence imaging using high-energy synchrotron radiation. Metallomics 2020; 12:193-203. [DOI: 10.1039/c9mt00243j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
SR-μ-XRF imaging has revealed that the distribution of Zn in leaves was different from that of Cd at a cellular level.
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Affiliation(s)
- Naoki Fukuda
- Department of Applied Chemistry
- Tokyo University of Science
- Tokyo 162-8601
- Japan
| | | | | | | | - Izumi Nakai
- Department of Applied Chemistry
- Tokyo University of Science
- Tokyo 162-8601
- Japan
| | - Akiko Hokura
- Department of Applied Chemistry
- Tokyo University of Science
- Tokyo 162-8601
- Japan
- Department of Applied Chemistry
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Zribi K, Nouairi I, Slama I, Talbi-Zribi O, Mhadhbi H. Medicago sativa--Sinorhizobium meliloti Symbiosis Promotes the Bioaccumulation of Zinc in Nodulated Roots. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2015; 17:49-55. [PMID: 25174424 DOI: 10.1080/15226514.2013.828017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this study we investigated effects of Zn supply on germination, growth, inorganic solutes (Zn, Ca, Fe, and Mg) partitioning and nodulation of Medicago sativa This plant was cultivated with and without Zn (2 mM). Treatments were plants without (control) and with Zn tolerant strain (S532), Zn intolerant strain (S112) and 2 mM urea nitrogen fertilisation. Results showed that M. sativa germinates at rates of 50% at 2 mM Zn. For plants given nitrogen fertilisation, Zn increased plant biomass production. When grown with symbionts, Zn supply had no effect on nodulation. Moreover, plants with S112 showed a decrease of shoot and roots biomasses. However, in symbiosis with S532, an increase of roots biomass was observed. Plants in symbiosis with S. meliloti accumulated more Zn in their roots than nitrogen fertilised plants. Zn supply results in an increase of Ca concentration in roots of fertilised nitrogen plants. However, under Zn supply, Fe concentration decreased in roots and increased in nodules of plants with S112. Zn supply showed contrasting effects on Mg concentrations for plants with nitrogen fertilisation (increase) and plants with S112 (decrease). The capacity of M. sativa to accumulate Zn in their nodulated roots encouraged its use in phytostabilisation processes.
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Affiliation(s)
- Kais Zribi
- a Laboratory of Legumes , Centre of Biotechnology of Borj Cedria , Hammam , Tunisia
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Nguyen NNT, Ranwez V, Vile D, Soulié MC, Dellagi A, Expert D, Gosti F. Evolutionary tinkering of the expression of PDF1s suggests their joint effect on zinc tolerance and the response to pathogen attack. FRONTIERS IN PLANT SCIENCE 2014; 5:70. [PMID: 24653728 PMCID: PMC3949115 DOI: 10.3389/fpls.2014.00070] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 02/10/2014] [Indexed: 05/25/2023]
Abstract
Multigenic families of Plant Defensin type 1 (PDF1) have been described in several species, including the model plant Arabidopsis thaliana as well as zinc tolerant and hyperaccumulator A. halleri. In A. thaliana, PDF1 transcripts (AtPDF1) accumulate in response to pathogen attack following synergic activation of ethylene/jasmonate pathways. However, in A. halleri, PDF1 transcripts (AhPDF1) are constitutively highly accumulated. Through an evolutionary approach, we investigated the possibility of A. halleri or A. thaliana species specialization in different PDF1s in conveying zinc tolerance and/or the response to pathogen attack via activation of the jasmonate (JA) signaling pathway. The accumulation of each PDF1 from both A. halleri and A. thaliana was thus compared in response to zinc excess and MeJA application. In both species, PDF1 paralogues were barely or not at all responsive to zinc. However, regarding the PDF1 response to JA signaling activation, A. thaliana had a higher number of PDF1s responding to JA signaling activation. Remarkably, in A. thaliana, a slight but significant increase in zinc tolerance was correlated with activation of the JA signaling pathway. In addition, A. halleri was found to be more tolerant to the necrotrophic pathogen Botrytis cinerea than A. thaliana. Since PDF1s are known to be promiscuous antifungal proteins able to convey zinc tolerance, we propose, on the basis of the findings of this study, that high constitutive PDF1 transcript accumulation in A. halleri is a potential way to skip the JA signaling activation step required to increase the PDF1 transcript level in the A. thaliana model species. This could ultimately represent an adaptive evolutionary process that would promote a PDF1 joint effect on both zinc tolerance and the response to pathogens in the A. halleri extremophile species.
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Affiliation(s)
- Nga N. T. Nguyen
- Unité Mixte de Recherche, Biochimie et Physiologie Moléculaire des Plantes, Montpellier SupAgro/CNRS/INRA/Université Montpellier IIMontpellier, France
| | - Vincent Ranwez
- Unité Mixte de Recherche, Amélioration Génétique et Adaptation des Plantes Méditerranéennes et Tropicales, Montpellier SupAgro/CIRAD/INRAMontpellier, France
| | - Denis Vile
- Laboratoire d'Ecophysiologie des Plantes sous Stress Environnementaux (LEPSE), UMR759 INRA/SupAgroMontpellier, France
| | - Marie-Christine Soulié
- Laboratoire des Interactions Plantes-Pathogènes, Unité Mixte de Recherche 217, Université Pierre et Marie Curie (UPMC Univ. Paris 06)Paris, France
| | - Alia Dellagi
- Laboratoire des Interactions Plantes-Pathogènes, Unité Mixte de Recherche 217 INRA/AgroParisTech/UPMCParis, France
| | - Dominique Expert
- Laboratoire des Interactions Plantes-Pathogènes, Unité Mixte de Recherche 217 INRA/AgroParisTech/UPMCParis, France
| | - Françoise Gosti
- Unité Mixte de Recherche, Biochimie et Physiologie Moléculaire des Plantes, Montpellier SupAgro/CNRS/INRA/Université Montpellier IIMontpellier, France
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Shahzad Z, Ranwez V, Fizames C, Marquès L, Le Martret B, Alassimone J, Godé C, Lacombe E, Castillo T, Saumitou-Laprade P, Berthomieu P, Gosti F. Plant Defensin type 1 (PDF1): protein promiscuity and expression variation within the Arabidopsis genus shed light on zinc tolerance acquisition in Arabidopsis halleri. THE NEW PHYTOLOGIST 2013; 200:820-833. [PMID: 23865749 DOI: 10.1111/nph.12396] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Accepted: 05/28/2013] [Indexed: 05/11/2023]
Abstract
Plant defensins are recognized for their antifungal properties. However, a few type 1 defensins (PDF1s) were identified for their cellular zinc (Zn) tolerance properties after a study of the metal extremophile Arabidopsis halleri. In order to investigate whether different paralogues would display specialized functions, the A. halleri PDF1 family was characterized at the functional and genomic levels. Eleven PDF1s were isolated from A. halleri. Their ability to provide Zn tolerance in yeast cells, their activity against Fusarium oxysporum f. sp. melonii, and their level of expression in planta were compared with those of the seven A. thaliana PDF1s. The genomic organization of the PDF1 family was comparatively analysed within the Arabidopsis genus. AhPDF1s and AtPDF1s were able to confer Zn tolerance and AhPDF1s also displayed antifungal activity. PDF1 transcripts were constitutively more abundant in A. halleri than in A. thaliana. Within the Arabidopsis genus, the PDF1 family is evolutionarily dynamic, in terms of gain and loss of gene copy. Arabidopsis halleri PDF1s display no superior abilities to provide Zn tolerance. A constitutive increase in AhPDF1 transcript accumulation is proposed to be an evolutionary innovation co-opting the promiscuous PDF1 protein for its contribution to Zn tolerance in A. halleri.
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Affiliation(s)
- Zaigham Shahzad
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche Montpellier, SupAgro/CNRS/INRA/Université Montpellier II, 2 Place Viala, F-34060, Montpellier Cedex 1, France
| | - Vincent Ranwez
- Montpellier SupAgro, UMR AGAP, F-34060, Montpellier, France
| | - Cécile Fizames
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche Montpellier, SupAgro/CNRS/INRA/Université Montpellier II, 2 Place Viala, F-34060, Montpellier Cedex 1, France
| | - Laurence Marquès
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche Montpellier, SupAgro/CNRS/INRA/Université Montpellier II, 2 Place Viala, F-34060, Montpellier Cedex 1, France
| | - Bénédicte Le Martret
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche Montpellier, SupAgro/CNRS/INRA/Université Montpellier II, 2 Place Viala, F-34060, Montpellier Cedex 1, France
| | - Julien Alassimone
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche Montpellier, SupAgro/CNRS/INRA/Université Montpellier II, 2 Place Viala, F-34060, Montpellier Cedex 1, France
| | - Cécile Godé
- Laboratoire de Génétique et Evolution des Populations Végétales, UMR CNRS 8016, Université des Sciences et Technologies de Lille, Lille1, F-59655, Villeneuve d'Ascq Cedex, France
| | - Eric Lacombe
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche Montpellier, SupAgro/CNRS/INRA/Université Montpellier II, 2 Place Viala, F-34060, Montpellier Cedex 1, France
| | - Teddy Castillo
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche Montpellier, SupAgro/CNRS/INRA/Université Montpellier II, 2 Place Viala, F-34060, Montpellier Cedex 1, France
| | - Pierre Saumitou-Laprade
- Laboratoire de Génétique et Evolution des Populations Végétales, UMR CNRS 8016, Université des Sciences et Technologies de Lille, Lille1, F-59655, Villeneuve d'Ascq Cedex, France
| | - Pierre Berthomieu
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche Montpellier, SupAgro/CNRS/INRA/Université Montpellier II, 2 Place Viala, F-34060, Montpellier Cedex 1, France
| | - Françoise Gosti
- Biochimie et Physiologie Moléculaire des Plantes, Unité Mixte de Recherche Montpellier, SupAgro/CNRS/INRA/Université Montpellier II, 2 Place Viala, F-34060, Montpellier Cedex 1, France
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Pineau C, Loubet S, Lefoulon C, Chalies C, Fizames C, Lacombe B, Ferrand M, Loudet O, Berthomieu P, Richard O. Natural variation at the FRD3 MATE transporter locus reveals cross-talk between Fe homeostasis and Zn tolerance in Arabidopsis thaliana. PLoS Genet 2012; 8:e1003120. [PMID: 23236296 PMCID: PMC3516540 DOI: 10.1371/journal.pgen.1003120] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Accepted: 10/12/2012] [Indexed: 12/03/2022] Open
Abstract
Zinc (Zn) is essential for the optimal growth of plants but is toxic if present in excess, so Zn homeostasis needs to be finely tuned. Understanding Zn homeostasis mechanisms in plants will help in the development of innovative approaches for the phytoremediation of Zn-contaminated sites. In this study, Zn tolerance quantitative trait loci (QTL) were identified by analyzing differences in the Bay-0 and Shahdara accessions of Arabidopsis thaliana. Fine-scale mapping showed that a variant of the Fe homeostasis-related FERRIC REDUCTASE DEFECTIVE3 (FRD3) gene, which encodes a multidrug and toxin efflux (MATE) transporter, is responsible for reduced Zn tolerance in A. thaliana. Allelic variation in FRD3 revealed which amino acids are necessary for FRD3 function. In addition, the results of allele-specific expression assays in F1 individuals provide evidence for the existence of at least one putative metal-responsive cis-regulatory element. Our results suggest that FRD3 works as a multimer and is involved in loading Zn into xylem. Cross-homeostasis between Fe and Zn therefore appears to be important for Zn tolerance in A. thaliana with FRD3 acting as an essential regulator. Plants are adapted to soils in which the amounts of different nutrients vary widely, like Zn-deficient or Zn-contaminated soils. Exploring the molecular bases of plant adaptation to Zn-contaminated soils is important in determining strategies for phytoremediation. Here, we describe the mapping and characterization of a QTL for Zn tolerance in A. thaliana that underlies the natural variation of the root response to excess Zn. This physiological variation is controlled by different alleles of the AtFRD3 gene, which codes for a citrate transporter that uploads citrate into the xylem sap, hence playing a role in Fe homeostasis. In the Zn-sensitive accession Shahdara, the expression of AtFRD3 is drastically reduced and the protein encoded is unable to efflux citrate in vitro. Less Fe and Zn are found in Shahdara root exudates, and less Fe and Zn are translocated from root to shoot when Zn is in excess. We deduce that a fine-tuned Fe and Zn homeostasis is crucial for Zn tolerance in A. thaliana. Finally, as a range of alleles were identified, some rare, it was possible to define a sequence motif that is a putative metal-responsive cis-element and demonstrate that two amino acids are essential for the function of the FRD3 transporter.
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Affiliation(s)
- Christophe Pineau
- CNRS-INRA-MontpellierSupAgro-UM2, UMR Biochimie et Physiologie Moléculaire des Plantes, Montpellier, France
| | - Stéphanie Loubet
- CNRS-INRA-MontpellierSupAgro-UM2, UMR Biochimie et Physiologie Moléculaire des Plantes, Montpellier, France
| | - Cécile Lefoulon
- CNRS-INRA-MontpellierSupAgro-UM2, UMR Biochimie et Physiologie Moléculaire des Plantes, Montpellier, France
| | - Claude Chalies
- CNRS-INRA-MontpellierSupAgro-UM2, UMR Biochimie et Physiologie Moléculaire des Plantes, Montpellier, France
| | - Cécile Fizames
- CNRS-INRA-MontpellierSupAgro-UM2, UMR Biochimie et Physiologie Moléculaire des Plantes, Montpellier, France
| | - Benoit Lacombe
- CNRS-INRA-MontpellierSupAgro-UM2, UMR Biochimie et Physiologie Moléculaire des Plantes, Montpellier, France
| | - Marina Ferrand
- INRA, UMR1318, Institut Jean-Pierre Bourgin, Versailles, France
| | - Olivier Loudet
- INRA, UMR1318, Institut Jean-Pierre Bourgin, Versailles, France
| | - Pierre Berthomieu
- CNRS-INRA-MontpellierSupAgro-UM2, UMR Biochimie et Physiologie Moléculaire des Plantes, Montpellier, France
| | - Odile Richard
- CNRS-INRA-MontpellierSupAgro-UM2, UMR Biochimie et Physiologie Moléculaire des Plantes, Montpellier, France
- * E-mail:
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