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López-Pozo M, Gasulla F, García-Plazaola JI, Fernández-Marín B. Unraveling metabolic mechanisms behind chloroplast desiccation tolerance: Chlorophyllous fern spore as a new promising unicellular model. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2019; 281:251-260. [PMID: 30824058 DOI: 10.1016/j.plantsci.2018.11.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 10/25/2018] [Accepted: 11/20/2018] [Indexed: 05/15/2023]
Abstract
Fern spores are unicellular structures produced by the sporophyte generation that give rise to the haploid gametophyte. When released from the sporangium, spores are desiccation tolerant (DT) in the royal fern (Osmunda regalis) and contain fully developed chloroplasts. As a consequence, this type of spores is called chlorophyllous spores (CS). Upon transfer to germination conditions, CS initiate a process of imbibition that suppresses DT in 72 h, before the germination starts. In parallel to such change in DT, thylakoids undergo a profound remodelling in composition and function. Firstly, sustained quenching of chlorophyll fluorescence is relaxed, giving rise to photochemically active CS, while lipid composition shifts from that of a resting structure to a metabolically active cell. Basically trigalactolipids decreased in favour of monogalactolipids, with a parallel desaturation of fatty acids. Storage lipids such as triacylglycerol were quickly depleted. These results highlight the importance of the structure of thylakoids lipid as a key to protect membrane integrity during desiccation, together with the saturation of fatty acids and the constitutive chlorophyll quenching to prevent oxidative damage. The CS used here, in which the same cell shifts from DT to sensitive strategy in 72 h, reveal their potential as unicellular models for future studies on DT.
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Affiliation(s)
- M López-Pozo
- Dpto. Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Bilbao, Spain.
| | - F Gasulla
- Dpto. de Ciencias de la Vida, Universidad de Alcalá, 28805, Alcalá de Henares, Madrid, Spain
| | - J I García-Plazaola
- Dpto. Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Bilbao, Spain
| | - B Fernández-Marín
- Dpto. Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940, Bilbao, Spain
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Leisso RS, Gapper NE, Mattheis JP, Sullivan NL, Watkins CB, Giovannoni JJ, Schaffer RJ, Johnston JW, Hanrahan I, Hertog MLATM, Nicolaï BM, Rudell DR. Gene expression and metabolism preceding soft scald, a chilling injury of 'Honeycrisp' apple fruit. BMC Genomics 2016; 17:798. [PMID: 27733113 PMCID: PMC5062943 DOI: 10.1186/s12864-016-3019-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 08/13/2016] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND 'Honeycrisp' is an apple cultivar that is susceptible to soft scald, a chilling injury expressed as necrotic patches on the peel. Improved understanding of metabolism associated with the disorder would improve our understanding of soft scald and contribute to developing more effective management strategies for apple storage. It was expected that specific gene expression and specific metabolite levels in the peel would be linked with soft scald risk at harvest and/or specific time points during cold storage. RESULTS Fruit from nine 'Honeycrisp' apple orchards that would eventually develop different incidences of soft scald between 4 and 8 weeks of cold air storage were used to contrast and determine differential transcriptomic and metabolomic changes during storage. Untargeted metabolic profiling revealed changes in a number of distinct pathways preceding and concurrent with soft scald symptom development, including elevated γ-aminobutryic acid (GABA), 1-hexanol, acylated steryl glycosides, and free p-coumaryl acyl esters. At harvest, levels of sesquiterpenoid and triterpenoid acyl esters were relatively higher in peel of fruit that did not later develop the disorder. RNA-seq driven gene expression profiling highlighted possible involvement of genes and associated metabolic processes with soft scald development. These included elevated expression of genes involved in lipid peroxidation and phenolic metabolism in fruit with soft scald, and isoprenoid/brassinosteroid metabolism in fruit that did not develop soft scald. Expression of other stress-related genes in fruit that developed soft scald included chlorophyll catabolism, cell wall loosening, and lipid transport while superoxide dismutases were up-regulated in fruit that did not develop the disorder. CONCLUSIONS This study delineates the sequential transcriptomic and metabolomic changes preceding soft scald symptom development. Changes were differential depending on susceptibility of fruit to the disorder and could be attributed to key stress related and mediating pathways.
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Affiliation(s)
- Rachel S Leisso
- United States Department of Agriculture, Agricultural Research Service, Tree Fruit Research Laboratory, Wenatchee, WA, USA
| | - Nigel E Gapper
- School of Plant Science, Horticulture Section, Cornell University, Ithaca, NY14853, USA
- AgroFresh Solutions Inc. 130 Technology Center Way Wenatchee, Wenatchee, WA 98801, WA, USA
| | - James P Mattheis
- United States Department of Agriculture, Agricultural Research Service, Tree Fruit Research Laboratory, Wenatchee, WA, USA
| | - Nathanael L Sullivan
- United States Department of Agriculture, Agricultural Research Service, Tree Fruit Research Laboratory, Wenatchee, WA, USA
| | - Christopher B Watkins
- School of Plant Science, Horticulture Section, Cornell University, Ithaca, NY14853, USA
| | - James J Giovannoni
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, NY14853, USA
- United States Department of Agriculture, Agricultural Research Service, Plant, Soil, and Nutrition Laboratory, Ithaca, NY14853, USA
| | - Robert J Schaffer
- The New Zealand Institute for Plant and Food Research, Ltd, Auckland, New Zealand
| | - Jason W Johnston
- The New Zealand Institute for Plant and Food Research, Ltd, Havelock North, New Zealand
| | - Ines Hanrahan
- Washington Tree Fruit Research Commission, Wenatchee, WA, USA
| | | | | | - David R Rudell
- United States Department of Agriculture, Agricultural Research Service, Tree Fruit Research Laboratory, Wenatchee, WA, USA.
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Botté CY, Maréchal E. Plastids with or without galactoglycerolipids. TRENDS IN PLANT SCIENCE 2014; 19:71-78. [PMID: 24231068 DOI: 10.1016/j.tplants.2013.10.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 10/09/2013] [Accepted: 10/15/2013] [Indexed: 06/02/2023]
Abstract
In structural, functional, and evolutionary terms, galactoglycerolipids are signature lipids of chloroplasts. Their presence in nongreen plastids has been demonstrated in angiosperms and diatoms. Thus, galactoglycerolipids are considered as a landmark of green and nongreen plastids, deriving from either a primary or secondary endosymbiosis. The discovery of a plastid in Plasmodium falciparum, the causative agent of malaria, fueled the search for galactoglycerolipids as possible targets for treatments. However, recent data have provided evidence that the Plasmodium plastid does not contain any galactoglycerolipids. In this opinion article, we discuss questions raised by the loss of galactoglycerolipids during evolution: how have galactoglycerolipids been lost? How does the Plasmodium plastid maintain four membranes without these lipids? What are the main constituents instead of galactoglycerolipids?
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Affiliation(s)
- Cyrille Y Botté
- ApicoLipid Group, Laboratoire Adapation et Pathogenie des Microorganismes; CNRS, Université de Grenoble-Alpes, UMR 5163, Institut Jean Roget, F-38042 Grenoble, France
| | - Eric Maréchal
- Laboratoire de Physiologie Cellulaire et Végétale; CNRS, CEA, INRA, Université de Grenoble-Alpes, UMR 5168, Institut de Recherches en Sciences et Technologies pour le Vivant, CEA Grenoble, F-38054 Grenoble, France.
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Boudière L, Michaud M, Petroutsos D, Rébeillé F, Falconet D, Bastien O, Roy S, Finazzi G, Rolland N, Jouhet J, Block MA, Maréchal E. Glycerolipids in photosynthesis: composition, synthesis and trafficking. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2013; 1837:470-80. [PMID: 24051056 DOI: 10.1016/j.bbabio.2013.09.007] [Citation(s) in RCA: 212] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 08/30/2013] [Accepted: 09/08/2013] [Indexed: 12/26/2022]
Abstract
Glycerolipids constituting the matrix of photosynthetic membranes, from cyanobacteria to chloroplasts of eukaryotic cells, comprise monogalactosyldiacylglycerol, digalactosyldiacylglycerol, sulfoquinovosyldiacylglycerol and phosphatidylglycerol. This review covers our current knowledge on the structural and functional features of these lipids in various cellular models, from prokaryotes to eukaryotes. Their relative proportions in thylakoid membranes result from highly regulated and compartmentalized metabolic pathways, with a cooperation, in the case of eukaryotes, of non-plastidic compartments. This review also focuses on the role of each of these thylakoid glycerolipids in stabilizing protein complexes of the photosynthetic machinery, which might be one of the reasons for their fascinating conservation in the course of evolution. This article is part of a Special Issue entitled: Dynamic and ultrastructure of bioenergetic membranes and their components.
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Affiliation(s)
- Laurence Boudière
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Morgane Michaud
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Dimitris Petroutsos
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Fabrice Rébeillé
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Denis Falconet
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Olivier Bastien
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Sylvaine Roy
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Giovanni Finazzi
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Norbert Rolland
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Juliette Jouhet
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France
| | - Maryse A Block
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France.
| | - Eric Maréchal
- Laboratoire de Physiologie Cellulaire, Végétale, CNRS UMR 5168, CEA iRTSV, Univ. Grenoble Alpes, INRA USC 1359, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex 9, France.
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