1
|
Ferrari R, Lacaze I, Le Faouder P, Bertrand-Michel J, Oger C, Galano JM, Durand T, Moularat S, Chan Ho Tong L, Boucher C, Kilani J, Petit Y, Vanparis O, Trannoy C, Brun S, Lalucque H, Malagnac F, Silar P. Cyclooxygenases and lipoxygenases are used by the fungus Podospora anserina to repel nematodes. Biochim Biophys Acta Gen Subj 2018; 1862:2174-2182. [PMID: 30025856 DOI: 10.1016/j.bbagen.2018.07.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 07/05/2018] [Accepted: 07/13/2018] [Indexed: 12/18/2022]
Abstract
Oxylipins are secondary messengers used universally in the living world for communication and defense. The paradigm is that they are produced enzymatically for the eicosanoids and non-enzymatically for the isoprostanoids. They are supposed to be degraded into volatile organic compounds (VOCs) and to participate in aroma production. Some such chemicals composed of eight carbons are also envisoned as alternatives to fossil fuels. In fungi, oxylipins have been mostly studied in Aspergilli and shown to be involved in signalling asexual versus sexual development, mycotoxin production and interaction with the host for pathogenic species. Through targeted gene deletions of genes encoding oxylipin-producing enzymes and chemical analysis of oxylipins and volatile organic compounds, we show that in the distantly-related ascomycete Podospora anserina, isoprostanoids are likely produced enzymatically. We show the disappearance in the mutants lacking lipoxygenases and cyclooxygenases of the production of 10-hydroxy-octadecadienoic acid and that of 1-octen-3-ol, a common volatile compound. Importantly, this was correlated with the inability of the mutants to repel nematodes as efficiently as the wild type. Overall, our data show that in this fungus, oxylipins are not involved in signalling development but may rather be used directly or as precursors in the production of odors against potential agressors. SIGNIFICANCE We analyzse the role in inter-kingdom communication of lipoxygenase (lox) and cyclooxygenase (cox) genes in the model fungus Podospora anserina. Through chemical analysis we define the oxylipins and volatile organic compounds (VOCs)produce by wild type and mutants for cox and lox genes, We show that the COX and LOX genes are required for the production of some eight carbon VOCs. We show that COX and LOX genes are involved in the production of chemicals repelling nematodes. This role is very different from the ones previously evidenced in other fungi.
Collapse
Affiliation(s)
- Roselyne Ferrari
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France
| | - Isabelle Lacaze
- Direction Santé Confort, Division Agents Biologiques et Aérocontaminants, Centre Scientifique et Technique du Bâtiment (CSTB), 84, avenue Jean Jaurès, Marne-la-Vallée Cedex F-77447, France
| | - Pauline Le Faouder
- MetaToul-Lipidomic Core Facility, MetaboHUB, Inserm U1048, Toulouse 31 432, France
| | | | - Camille Oger
- Institut des Biomolécules Max Mousseron, (IBMM), CNRS, ENSCM, Université de Montpellier, UMR 5247, 15 Av. Ch. Flahault, Montpellier Cedex F-34093, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron, (IBMM), CNRS, ENSCM, Université de Montpellier, UMR 5247, 15 Av. Ch. Flahault, Montpellier Cedex F-34093, France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron, (IBMM), CNRS, ENSCM, Université de Montpellier, UMR 5247, 15 Av. Ch. Flahault, Montpellier Cedex F-34093, France
| | - Stéphane Moularat
- Direction Santé Confort, Division Agents Biologiques et Aérocontaminants, Centre Scientifique et Technique du Bâtiment (CSTB), 84, avenue Jean Jaurès, Marne-la-Vallée Cedex F-77447, France
| | - Laetitia Chan Ho Tong
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France
| | - Charlie Boucher
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France
| | - Jaafar Kilani
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France
| | - Yohann Petit
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France
| | - Océane Vanparis
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France
| | - César Trannoy
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France
| | - Sylvain Brun
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France
| | - Hervé Lalucque
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France
| | - Fabienne Malagnac
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France; Institute for Integrative Biology of the Cell, CEA, CNRS, Université Paris-Sud, Orsay 91400, France
| | - Philippe Silar
- Sorbonne Paris Cité, Laboratoire Interdisciplinaire des Energies de Demain (LIED), Univ. Paris Diderot, Paris F-75205, France.
| |
Collapse
|