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5. Digestate Improves Stinging Nettle (Urtica dioica) Growth and Fiber Production at a Chlor-Alkali Site.

Author

Viotti, Chloé, Bertheau, Coralie, Martz, Françoise, Yung, Loïc, Placet, Vincent, Ferrarini, Andrea, Fornassier, Flavio, Blaudez, Damien, Puschenreiter, Markus, and Chalot, Michel

Subjects
STINGING nettle, ENERGY crops, PLANT biomass, SOIL respiration, ORGANIC wastes
Abstract

Marginal lands have been proposed to produce non-food crop biomass for energy or green materials. For this purpose, the selection, implementation, and growth optimization of plant species on such lands are key elements to investigate to achieve relevant plant yields. Stinging nettle (Urtica dioica) is a herbaceous perennial that grows spontaneously on contaminated lands and was described as suitable to produce fibers for material applications. Two mercury-contaminated soils from industrial wastelands with different properties (grassland soil and sediment landfill) were used in this study to assess the potential growth of stinging nettle in a greenhouse mesocosm experiment. Two organic amendments were studied for their impact on nettle growth. The solid digestate from organic food wastes significantly doubled plant biomass whereas the compost from green wastes had a lower impact. The highest doses of organic amendments significantly increased the number of fibers, which doubled following digestate application, while reducing leaf Hg concentration. Both amendments significantly improved soil respiration and enzymatic activities linked to the microbial biomass in the soil from the sediment landfill by the end of the experiment. In the context of a phytomanagement scenario, solid digestate would be a preferred amendment resource to improve nettle production on industrial wastelands. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Prospecting for rare earth element (hyper)accumulators in the Paris Herbarium using X-ray fluorescence spectroscopy reveals new distributional and taxon discoveries

Author

Goudard, Léo, Blaudez, Damien, Sirguey, Catherine, Purwadi, Imam, Invernon, Vanessa, Rouhan, Germinal, van der Ent, Antony, Goudard, Léo, Blaudez, Damien, Sirguey, Catherine, Purwadi, Imam, Invernon, Vanessa, Rouhan, Germinal, and van der Ent, Antony

Abstract

Background: Rare earth elements (REEs) are increasingly crucial for modern technologies. Plants could be used as a biogeochemical pathfinder and a tool to extract REEs from deposits. However, a paucity of information on suitable plants for these tasks exists.Methods: We aimed to discover new REE-(hyper)accumulating plant species by performing an X-ray fluorescence (XRF) survey at the Herbarium of the Muséum national d’Histoire naturelle (MNHN, Paris, France). We selected specific families based on the likelihood of containing REE-hyperaccumulating species, using known taxa that accumulate REEs. A total of 4425 specimens, taken in the two main evolutionary lineages of extant vascular plants, were analysed, including the two fern families Blechnaceae (n = 561) and Gleicheniaceae (n = 1310), and the two flowering plant families Phytolaccaceae (n = 1137) and Juglandaceae (n = 1417).Key Results: Yttrium (Y) was used as a proxy for REEs for methodological reasons, and a total of 268 specimens belonging to the genera Blechnopsis (n = 149), Dicranopteris (n = 75), Gleichenella (n = 32), Phytolacca (n = 6), Carya (n = 4), Juglans (n = 1) and Sticherus (n = 1) were identified with Y concentrations ranging from the limit of detection (LOD) >49 µg g−1 up to 1424 µg g−1. Subsequently, analysis of fragments of selected specimens by inductively coupled plasma atomic emission spectroscopy (ICP-AES) revealed that this translated to up to 6423 µg total REEs g−1 in Dicranopteris linearis and up to 4278 µg total REEs g−1 in Blechnopsis orientalis which are among the highest values ever recorded for REE hyperaccumulation in plants. It also proved the validity of Y as an indicator for REEs in XRF analysis of herbarium specimens. The presence of manganese (Mn) and zinc (Zn) was also studied by XRF in the selected specimens. Mn was detected in 1440 specimens ranging from the detection limit at 116 µg g−1 up to 3807 µg g−1 whilst Zn was detected in 345 specimens ranging from the detection l

Published
2024

23. Chapter Three - Poplar as a woody model for the phytomanagement of trace element contaminated soils.

Author

Ciadamidaro, Lisa, Blaudez, Damien, and Chalot, Michel

Subjects
*POPLARS, *ECOLOGICAL engineering, *SOIL remediation, *HAZARDOUS waste sites, *SOIL pollution
Abstract

On a global scale, the effects of human activities, in particular changes in the way land is used and exploited and the resulting contamination, have had profound negative effects on biodiversity and ecosystem functioning. Consequently, restoring the marginal lands through the use of solutions inspired and supported by nature appears to be one of the European Union's main objectives. In this respect, eco-innovative phytotechnologies, such as phytoremediation, have become an important ecological engineering approach for the recovery of contaminated land. A relatively new area of phytoremediation is phytomanagement in which non-food crops with high biomass yields are used to reduce and control the risks associated with soil pollution, while enabling profitable and sustainable use of resources by extracting contaminants and recovering marketable biomass. Consequently, the best choice of plant species is crucial to the successful phytomanagement of contaminated sites. This meta-analysis highlights the importance of using fast-growing plants for phytomanagement purposes, focusing on woody species. Those from the Salicaceae family, which includes poplars (Populus), have attracted the most attention in recent decades. On the basis of this meta-analysis, poplars appear to be the best candidates for the remediation of metal-contaminated soils, particularly when combined with the most appropriate microbial consortia. Finally, we describe the molecular determinants of poplar involved in the management of trace elements (TE), as well as the valorization processes that have been applied to poplar biomass from phytoremediation trials. [ABSTRACT FROM AUTHOR]

Published
2024
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28. High-energy interference-free K-lines synchrotron X-ray fluorescence microscopy of rare earth elements in hyperaccumulator plants

Author

van der Ent, Antony, Brueckner, Dennis, Spiers, Kathryn M., Falch, Ken Vidar, Falkenberg, Gerald, Layet, Clément, Liu, Wen Shen, Zheng, Hong Xiang, Le Jean, Marie, Blaudez, Damien, van der Ent, Antony, Brueckner, Dennis, Spiers, Kathryn M., Falch, Ken Vidar, Falkenberg, Gerald, Layet, Clément, Liu, Wen Shen, Zheng, Hong Xiang, Le Jean, Marie, and Blaudez, Damien

Abstract

Synchrotron-based micro-X-ray fluorescence analysis (µXRF) is a nondestructive and highly sensitive technique. However, element mapping of rare earth elements (REEs) under standard conditions requires care, since energy-dispersive detectors are not able to differentiate accurately between REEs L-shell X-ray emission lines overlapping with K-shell X-ray emission lines of common transition elements of high concentrations. We aim to test REE element mapping with high-energy interference-free excitation of the REE K-lines on hyperaccumulator plant tissues and compare with measurements with REE L-shell excitation at the microprobe experiment of beamline P06 (PETRA III, DESY). A combination of compound refractive lens optics (CRLs) was used to obtain a micrometer-sized focused incident beam with an energy of 44 keV and an extra-thick silicon drift detector optimized for high-energy X-ray detection to detect the K-lines of yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr), and neodymium (Nd) without any interferences due to line overlaps. High-energy excitation from La to Nd in the hyperaccumulator organs was successful but compared to L-line excitation less efficient and therefore slow (∼10-fold slower than similar maps at lower incident energy) due to lower flux and detection efficiency. However, REE K-lines do not suffer significantly from self-absorption, which makes XRF tomography of millimeter-sized frozen-hydrated plant samples possible. The K-line excitation of REEs at the P06 CRL setup has scope for application in samples that are particularly prone to REE interfering elements, such as soil samples with high concomitant Ti, Cr, Fe, Mn, and Ni concentrations.

Published
2023

31. Genome-Wide Mutant Screening in Yeast Reveals that the Cell Wall is a First Shield to Discriminate Light From Heavy Lanthanides

Author

Grosjean, Nicolas, Le Jean, Marie, Chalot, Michel, Mora-Montes, Héctor, Armengaud, Jean, Gross, Elisabeth, Blaudez, Damien, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Chrono-environnement (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Universidad de Guanajuato, CEA Marcoule, Bagnols-sur-Ceze, France, and French National Research Agency through the National Program 'Investissements d’Avenir' with the reference ANR-10-LABX-21-01/LABEX RESSOURCES 21Région Grand EstConsejo Nacional de Ciencia y Tecnología, México (ref. CF-2019-6380)

Subjects
Microbiology (medical), lanthanum, [SDV]Life Sciences [q-bio], [SDE]Environmental Sciences, cell wall, endocytosis, ytterbium, deletome, signaling, Microbiology
Abstract

The rapidly expanding utilization of lanthanides (Ln) for the development of new technologies, green energies, and agriculture has raised concerns regarding their impacts on the environment and human health. The absence of characterization of the underlying cellular and molecular mechanisms regarding their toxicity is a caveat in the apprehension of their environmental impacts. We performed genomic phenotyping and molecular physiology analyses of Saccharomyces cerevisiae mutants exposed to La and Yb to uncover genes and pathways affecting Ln resistance and toxicity. Ln responses strongly differed from well-known transition metal and from common responses mediated by oxidative compounds. Shared response pathways to La and Yb exposure were associated to lipid metabolism, ion homeostasis, vesicular trafficking, and endocytosis, which represents a putative way of entry for Ln. Cell wall organization and related signaling pathways allowed for the discrimination of light and heavy Ln. Mutants in cell wall integrity-related proteins (e.g., Kre1p, Kre6p) or in the activation of secretory pathway and cell wall proteins (e.g., Kex2p, Kex1p) were resistant to Yb but sensitive to La. Exposure of WT yeast to the serine protease inhibitor tosyl phenylalanyl chloromethyl ketone mimicked the phenotype of kex2∆ under Ln, strengthening these results. Our data also suggest that the relative proportions of chitin and phosphomannan could modulate the proportion of functional groups (phosphates and carboxylates) to which La and Yb could differentially bind. Moreover, we showed that kex2∆, kex1∆, kre1∆, and kre6∆ strains were all sensitive to light Ln (La to Eu), while being increasingly resistant to heavier Ln. Finally, shotgun proteomic analyses identified modulated proteins in kex2∆ exposed to Ln, among which several plasmalemma ion transporters that were less abundant and that could play a role in Yb uptake. By combining these different approaches, we unraveled that cell wall components not only act in Ln adsorption but are also active signal effectors allowing cells to differentiate light and heavy Ln. This work paves the way for future investigations to the better understanding of Ln toxicity in higher eukaryotes.

Published
2022
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32. Nettle, a Long-Known Fiber Plant with New Perspectives

Author

Viotti, Chloé, primary, Albrecht, Katharina, additional, Amaducci, Stefano, additional, Bardos, Paul, additional, Bertheau, Coralie, additional, Blaudez, Damien, additional, Bothe, Lea, additional, Cazaux, David, additional, Ferrarini, Andrea, additional, Govilas, Jason, additional, Gusovius, Hans-Jörg, additional, Jeannin, Thomas, additional, Lühr, Carsten, additional, Müssig, Jörg, additional, Pilla, Marcello, additional, Placet, Vincent, additional, Puschenreiter, Markus, additional, Tognacchini, Alice, additional, Yung, Loïc, additional, and Chalot, Michel, additional

Published
2022
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39. Response of Populus canadensis and associated fungal endophytic communities to PAH contamination gradient

Author

Gréau, Lilian, Blaudez, Damien, Lejean, M., Beguiristain, Thierry, Cébron, Aurélie, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and CEBRON, Aurélie

Subjects
[SDE] Environmental Sciences, [SDE]Environmental Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2021

44. Approches multi-échelles de la réponse des plantes et de leurs champignons symbiotiques aux métaux : du phytomanagement des sites contaminés à la caractérisation fonctionnelle de gènes

Author

Blaudez, Damien, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Université de Lorraine, and Prof. Pascale BAUDA

Subjects
champignons endophytes, endophytic fungi, phytomanagement, [SDV]Life Sciences [q-bio], transporteurs de métaux, contaminated soils, rare earth elements, Metal homeostasis, peuplier, champignons mycorhiziens, Terres rares, mycorrhizal fungi, poplar, sols contaminés, [SDE]Environmental Sciences, metal transporters, homéostasie métallique
Abstract

Les éléments traces métalliques sont des contaminants majeurs de l’environnement et de nombreux sites contaminés sont laissés à l’abandon faute de solutions de remédiation appropriées. Des solutions basées sur l’utilisation d’organismes vivants ont été proposées mais leur développement est souvent limité par un manque de connaissances fondamentales. Mes activités de recherche s’inscrivent pleinement dans ce contexte. Plus spécifiquement, le bilan présenté dans ce rapport repose sur des approches multi-échelles visant à (i) expérimenter des solutions innovantes de phytomanagement assisté par des symbiotes fongiques pour la remédiation/valorisation de sites marginaux (ii) améliorer nos connaissances fondamentales liées à l’homéostasie métallique chez les plantes et les champignons associés, de nature à favoriser l’émergence de nouvelles solutions à déployer sur le terrain. Enfin, je conclus dans ce mémoire en exposant les perspectives les plus prometteuses du domaine, en décrivant les stratégies innovantes qui seront déployées, notamment en ce qui concerne l’étude des mécanismes de tolérance développés par les plantes et les champignons exposés à des contaminants métalliques émergeants, les terres rares.; Trace metals are major contaminants of the environment and many contaminated sites are derelict due to the lack of adequate solutions of remediation. Organisms-based solutions have been proposed. However, their development is often limited by our lack of fundamental knowledge. My research activities fit fully into this context. The results presented in this report are based on multi-scale approaches aimed at (i) experimenting with innovative solutions of phytomanagement assisted by fungal symbionts for the remediation/valorization of marginal sites, and (ii) improving our fundamental knowledge related to metal homeostasis in plants and associated fungi, in order to favor the emergence of new solutions to be deployed at the field level. Finally, I conclude by exposing the most interesting perspectives in the field and by describing the innovative strategies that will be implemented for identifying the tolerance mechanisms developed by plants and fungi in response to rare earth elements, emerging metal contaminants.

Published
2020

47. Ferns for Rare Earth Elements (REE) – Toward deciphering REE transfer to plants using the accumulating fern Dryopteris erythrosora

Author

Le Jean, Marie, Grosjean, Nicolas, Spiers, Kathryn, Rivard, Camille, Montargès-Pelletier, Emmanuelle, Flayac, Justine, Gross, Elisabeth, Thomine, Sébastien, Merlot, Sylvain, Blaudez, Damien, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Deutsches Elektronen-Synchrotron [Hamburg] (DESY), European Synchrotron Radiation Facility (ESRF), Institut de Biologie Intégrative de la Cellule (I2BC), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Blaudez, Damien

Subjects
[SDE] Environmental Sciences, [SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], [SDE]Environmental Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

48. Is the Rare Earth Element accumulation trait shared by different Phytolacca species?

Author

Blaudez, Damien, Grosjean, Nicolas, Chalot, Michel, Berthelot, Charlotte, Gross, Elisabeth, Le Jean, Marie, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), and Blaudez, Damien

Subjects
[SDE] Environmental Sciences, [SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], [SDE]Environmental Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

49. Investigation of metal responsive genes in yeast

Author

Ory, Jordan, Le Jean, Marie, Blaudez, Damien, Blaudez, Damien, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), and Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDE] Environmental Sciences, [SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], [SDE]Environmental Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

50. A la recherche de fougères rustiques accumulatrices de terres rares

Author

Blaudez, Damien, Grosjean, Nicolas, Chalot, Michel, Gross, Elisabeth, Le Jean, Marie, Blaudez, Damien, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), and Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)

Subjects
[SDE] Environmental Sciences, [SDV] Life Sciences [q-bio], [SDV]Life Sciences [q-bio], [SDE]Environmental Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

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