1
|
Mallet C, Romdhane S, Loiseau C, Béguet J, Martin-Laurent F, Calvayrac C, Barthelmebs L. Impact of Leptospermone, a Natural β-Triketone Herbicide, on the Fungal Composition and Diversity of Two Arable Soils. Front Microbiol 2019; 10:1024. [PMID: 31134038 PMCID: PMC6524154 DOI: 10.3389/fmicb.2019.01024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 04/24/2019] [Indexed: 01/10/2023] Open
Abstract
Impact of leptospermone, a β-triketone bioherbicide, was investigated on the fungal community which supports important soil ecological functions such as decomposition of organic matter and nutrients recycling. This study was done in a microcosm experiment using two French soils, Perpignan (P) and Saint-Jean-de-Fos (SJF), differing in their physicochemical properties and history treatment with synthetic β-triketones. Soil microcosms were treated with leptospermone at recommended dose and incubated under controlled conditions for 45 days. Untreated microcosms were used as control. Illumina MiSeq sequencing of the internal transcribed spacer region of the fungal rRNA revealed significant changes in fungal community structure and diversity in both soils. Xylariales, Hypocreales, Pleosporales and Capnodiales (Ascomycota phyla) fungi and those belonging to Sebacinales, Cantharellales, Agaricales, Polyporales, Filobasidiales and Tremellales orders (Basidiomycota phyla) were well represented in treated soil microcosms compared to control. Nevertheless, while for the treated SJF a complete recovery of the fungal community was observed at the end of the experiment, this was not the case for the P treated soil, although no more bioherbicide remained. Indeed, the relative abundance of most of the saprophytic fungi were lower in treated soil compared to control microcosms whereas fungi from parasitic fungi included in Spizellomycetales and Pezizales orders increased. To the best of our knowledge, this is the only study assessing the effect of the bioherbicide leptospermone on the composition and diversity of the fungal community in soil. This study showed that leptospermone has an impact on α- and β-diversity of the fungal community. It underlines the possible interest of microbial endpoints for environmental risk assessment of biopesticide.
Collapse
Affiliation(s)
- Clarisse Mallet
- Laboratoire Microorganismes : Génome et Environnement, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Sana Romdhane
- AgroSup Dijon, INRA UMR1347 Agroécologie, Université de Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
- Biocapteurs-Analyses-Environnement, Université de Perpignan Via Domitia, Perpignan, France
| | - Camille Loiseau
- Laboratoire Microorganismes : Génome et Environnement, CNRS, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Jérémie Béguet
- AgroSup Dijon, INRA UMR1347 Agroécologie, Université de Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | - Fabrice Martin-Laurent
- AgroSup Dijon, INRA UMR1347 Agroécologie, Université de Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | - Christophe Calvayrac
- Biocapteurs-Analyses-Environnement, Université de Perpignan Via Domitia, Perpignan, France
- Laboratoire de Biodiversité et Biotechnologies Microbiennes, USR 3579 Sorbonne Universités (UPMC) Paris 6 et CNRS Observatoire Océanologique, Banyuls-sur-Mer, France
| | - Lise Barthelmebs
- Biocapteurs-Analyses-Environnement, Université de Perpignan Via Domitia, Perpignan, France
- Laboratoire de Biodiversité et Biotechnologies Microbiennes, USR 3579 Sorbonne Universités (UPMC) Paris 6 et CNRS Observatoire Océanologique, Banyuls-sur-Mer, France
| |
Collapse
|
2
|
Panelli S, Capelli E, Comandatore F, Landinez-Torres A, Granata MU, Tosi S, Picco AM. A metagenomic-based, cross-seasonal picture of fungal consortia associated with Italian soils subjected to different agricultural managements. FUNGAL ECOL 2017. [DOI: 10.1016/j.funeco.2017.07.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
4
|
Lcc1 and Lcc5 are the main laccases secreted in liquid cultures of Coprinopsis cinerea strains. Antonie van Leeuwenhoek 2013; 103:1029-39. [PMID: 23340718 PMCID: PMC3622001 DOI: 10.1007/s10482-013-9883-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2012] [Accepted: 01/11/2013] [Indexed: 10/27/2022]
Abstract
The litter-degrading dung fungus Coprinopsis cinerea has the high number of seventeen different laccase genes. In this work, ten different monokaryons were compared in their ability to produce laccases in two different complete media at different temperatures. Few strains showed laccase activity at the optimal growth temperature of 37 °C. Nine of the strains gave laccase activities between 0.2 and 5.9 U mL(-1) at the suboptimal temperature of 25 °C in mKjalke medium. Laccase activities in YMG/T medium were detected for only three strains (0.5-4.5 U mL(-1)). Zymograms of supernatants from mKjalke medium resulted in total in 10 different laccase bands but strains differed in distribution. LC-MS/MS analysis with Mascot searches of the annotated C. cinerea genome identified isoenzymes from five different genes (Lcc1, Lcc2, Lcc5, Lcc9 and Lcc10) and of Lcc1 three and of Lcc5 two distinct electrophoretical forms. Lcc1 and Lcc5 were expressed in all laccase positive strains, but not all forms were found in all of the strains. Lcc2, Lcc9 and Lcc10 occurred only in three strains as minor laccases, indicating that Lcc1 and Lcc5 are the main laccases of C. cinerea secreted in liquid mKjalke medium.
Collapse
|
5
|
Substrate oxidation by dye-decolorizing peroxidases (DyPs) from wood- and litter-degrading agaricomycetes compared to other fungal and plant heme-peroxidases. Appl Microbiol Biotechnol 2012; 97:5839-49. [PMID: 23111597 DOI: 10.1007/s00253-012-4521-2] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 10/14/2012] [Accepted: 10/15/2012] [Indexed: 01/27/2023]
Abstract
Catalytic and physicochemical properties of representative fungal dye-decolorizing peroxidases (DyPs) of wood- (WRF) and litter-decomposing white-rot fungi (LDF) are summarized and compared, including one recombinant Mycetinis scorodonius DyP (rMscDyP; LDF), the wild-type Auricularia auricula-judae DyP (AauDyP; WRF), and two new DyPs secreted by the jelly fungi Exidia glandulosa (EglDyP; WRF) and Mycena epipterygia (MepDyP; LDF). Homogeneous preparations of these DyPs were obtained after different steps of fast protein liquid chromatography, and they increase the total number of characterized fungal DyP proteins to eight. The peptide sequences of AauDyP, MepDyP, and EglDyP showed highest homologies (52-56%) to the DyPs of M. scorodonius. Five out of the eight characterized fungal DyPs were used to evaluate their catalytic properties compared to classic fungal and plant heme peroxidases, namely lignin peroxidase of Phanerochaete chrysosporium (PchLiP; WRF), versatile peroxidase of Bjerkandera adusta (BadVP; WRF), and generic peroxidases of Coprinopsis cinerea (CiP) and Glycine max (soybean peroxidase=SBP). All DyPs tested possess unique properties regarding the stability at low pH values: 50-90% enzymatic activity remained after 4-h exposition at pH 2.5, and the oxidation of nonphenolic aromatic substrates (lignin model compounds) was optimal below pH 3. Furthermore, all DyPs efficiently oxidized recalcitrant dyes (e.g., Azure B) as well as the phenolic substrate 2,6-dimethoxyphenol. Thus, DyPs combine features of different peroxidases on the functional level and may be part of the biocatalytic system secreted by fungi for the oxidation of lignin and/or toxic aromatic compounds.
Collapse
|
7
|
Trovaslet M, Enaud E, Guiavarc’h Y, Corbisier AM, Vanhulle S. Potential of a Pycnoporus sanguineus laccase in bioremediation of wastewater and kinetic activation in the presence of an anthraquinonic acid dye. Enzyme Microb Technol 2007. [DOI: 10.1016/j.enzmictec.2007.03.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|