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Iswanto ABB, Vu MH, Shon JC, Kumar R, Wu S, Kang H, Kim DR, Son GH, Kim WY, Kwak YS, Liu KH, Kim SH, Kim JY. α1-COP modulates plasmodesmata function through sphingolipid enzyme regulation. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2024; 66:1639-1657. [PMID: 38888228 DOI: 10.1111/jipb.13711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 04/30/2024] [Indexed: 06/20/2024]
Abstract
Callose, a β-1,3-glucan plant cell wall polymer, regulates symplasmic channel size at plasmodesmata (PD) and plays a crucial role in a variety of plant processes. However, elucidating the molecular mechanism of PD callose homeostasis is limited. We screened and identified an Arabidopsis mutant plant with excessive callose deposition at PD and found that the mutated gene was α1-COP, a member of the coat protein I (COPI) coatomer complex. We report that loss of function of α1-COP elevates the callose accumulation at PD by affecting subcellular protein localization of callose degradation enzyme PdBG2. This process is linked to the functions of ERH1, an inositol phosphoryl ceramide synthase, and glucosylceramide synthase through physical interactions with the α1-COP protein. Additionally, the loss of function of α1-COP alters the subcellular localization of ERH1 and GCS proteins, resulting in a reduction of GlcCers and GlcHCers molecules, which are key sphingolipid (SL) species for lipid raft formation. Our findings suggest that α1-COP protein, together with SL modifiers controlling lipid raft compositions, regulates the subcellular localization of GPI-anchored PDBG2 proteins, and hence the callose turnover at PD and symplasmic movement of biomolecules. Our findings provide the first key clue to link the COPI-mediated intracellular trafficking pathway to the callose-mediated intercellular signaling pathway through PD.
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Affiliation(s)
- Arya Bagus Boedi Iswanto
- Division of Applied Life Science (BK21 FOUR Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Minh Huy Vu
- Division of Applied Life Science (BK21 FOUR Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Jong Cheol Shon
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 702-701, Korea
| | - Ritesh Kumar
- Division of Applied Life Science (BK21 FOUR Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Shuwei Wu
- Division of Applied Life Science (BK21 FOUR Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Hobin Kang
- Division of Applied Life Science (BK21 FOUR Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Da-Ran Kim
- Departement of Plant Medicine, Gyeongsang National University, Jinju, 52828, Korea
| | - Geon Hui Son
- Division of Applied Life Science (BK21 FOUR Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Woe Yoen Kim
- Division of Applied Life Science (BK21 FOUR Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
| | - Youn-Sig Kwak
- Departement of Plant Medicine, Gyeongsang National University, Jinju, 52828, Korea
| | - Kwang Hyeon Liu
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, 702-701, Korea
| | - Sang Hee Kim
- Division of Applied Life Science (BK21 FOUR Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
- Division of Life Science, Gyeongsang National University, Jinju, 52828, Korea
| | - Jae-Yean Kim
- Division of Applied Life Science (BK21 FOUR Program), Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, 52828, Korea
- Division of Life Science, Gyeongsang National University, Jinju, 52828, Korea
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Haslam TM, Herrfurth C, Feussner I. Diverse INOSITOL PHOSPHORYLCERAMIDE SYNTHASE mutant alleles of Physcomitrium patens offer new insight into complex sphingolipid metabolism. THE NEW PHYTOLOGIST 2024; 242:1189-1205. [PMID: 38523559 DOI: 10.1111/nph.19667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/26/2024] [Indexed: 03/26/2024]
Abstract
Sphingolipids are widespread, abundant, and essential lipids in plants and in other eukaryotes. Glycosyl inositol phosphorylceramides (GIPCs) are the most abundant class of plant sphingolipids, and are enriched in the plasma membrane of plant cells. They have been difficult to study due to lethal or pleiotropic mutant phenotypes. To overcome this, we developed a CRISPR/Cas9-based method for generating multiple and varied knockdown and knockout populations of mutants in a given gene of interest in the model moss Physcomitrium patens. This system is uniquely convenient due to the predominantly haploid state of the Physcomitrium life cycle, and totipotency of Physcomitrium protoplasts used for transformation. We used this approach to target the INOSITOL PHOSPHORYLCERAMIDE SYNTHASE (IPCS) gene family, which catalyzes the first, committed step in the synthesis of GIPCs. We isolated knockout single mutants and knockdown higher-order mutants showing a spectrum of deficiencies in GIPC content. Remarkably, we also identified two mutant alleles accumulating inositol phosphorylceramides, the direct products of IPCS activity, and provide our best explanation for this unexpected phenotype. Our approach is broadly applicable for studying essential genes and gene families, and for obtaining unusual lesions within a gene of interest.
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Affiliation(s)
- Tegan M Haslam
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences, University of Goettingen, Goettingen, D-37077, Germany
| | - Cornelia Herrfurth
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences, University of Goettingen, Goettingen, D-37077, Germany
- Goettingen Center for Molecular Biosciences (GZMB), Service Unit for Metabolomics and Lipidomics, University of Goettingen, Goettingen, D-37077, Germany
| | - Ivo Feussner
- Department of Plant Biochemistry, Albrecht-von-Haller-Institute for Plant Sciences, University of Goettingen, Goettingen, D-37077, Germany
- Department of Plant Biochemistry, Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Goettingen, D-37077, Germany
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Nouwen N, Pervent M, El M’Chirgui F, Tellier F, Rios M, Horta Araújo N, Klopp C, Gressent F, Arrighi JF. OROSOMUCOID PROTEIN 1 regulation of sphingolipid synthesis is required for nodulation in Aeschynomene evenia. PLANT PHYSIOLOGY 2024; 194:1611-1630. [PMID: 38039119 PMCID: PMC10904325 DOI: 10.1093/plphys/kiad642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 12/03/2023]
Abstract
Legumes establish symbiotic interactions with nitrogen-fixing rhizobia that are accommodated in root-derived organs known as nodules. Rhizobial recognition triggers a plant symbiotic signaling pathway that activates 2 coordinated processes: infection and nodule organogenesis. How these processes are orchestrated in legume species utilizing intercellular infection and lateral root base nodulation remains elusive. Here, we show that Aeschynomene evenia OROSOMUCOID PROTEIN 1 (AeORM1), a key regulator of sphingolipid biosynthesis, is required for nodule formation. Using A. evenia orm1 mutants, we demonstrate that alterations in AeORM1 function trigger numerous early aborted nodules, defense-like reactions, and shorter lateral roots. Accordingly, AeORM1 is expressed during lateral root initiation and elongation, including at lateral root bases where nodule primordium form in the presence of symbiotic bradyrhizobia. Sphingolipidomics revealed that mutations in AeORM1 lead to sphingolipid overaccumulation in roots relative to the wild type, particularly for very long-chain fatty acid-containing ceramides. Taken together, our findings reveal that AeORM1-regulated sphingolipid homeostasis is essential for rhizobial infection and nodule organogenesis, as well as for lateral root development in A. evenia.
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Affiliation(s)
- Nico Nouwen
- Plant Health Institute of Montpellier (PHIM), IRD, UMR Univ Montpellier/IRD/SupAgro/INRAE/CIRAD, TA-A82/J Campus de Baillarguet, 34398 Montpellier, France
| | - Marjorie Pervent
- Plant Health Institute of Montpellier (PHIM), INRAE, UMR Univ Montpellier/IRD/SupAgro/INRAE/CIRAD, TA-A82/J Campus de Baillarguet, 34398 Montpellier, France
| | - Franck El M’Chirgui
- Plant Health Institute of Montpellier (PHIM), IRD, UMR Univ Montpellier/IRD/SupAgro/INRAE/CIRAD, TA-A82/J Campus de Baillarguet, 34398 Montpellier, France
| | - Frédérique Tellier
- Institut Jean-Pierre Bourgin (IJPB), INRAE, AgroParisTech, Université Paris-Saclay, 78000 Versailles, France
| | - Maëlle Rios
- Plant Health Institute of Montpellier (PHIM), IRD, UMR Univ Montpellier/IRD/SupAgro/INRAE/CIRAD, TA-A82/J Campus de Baillarguet, 34398 Montpellier, France
| | - Natasha Horta Araújo
- Plant Health Institute of Montpellier (PHIM), IRD, UMR Univ Montpellier/IRD/SupAgro/INRAE/CIRAD, TA-A82/J Campus de Baillarguet, 34398 Montpellier, France
| | - Christophe Klopp
- Plateforme Bioinformatique Genotoul, BioinfoMics, UR875 Biométrie et Intelligence Artificielle, INRAE, 31326 Castanet-Tolosan, France
| | - Frédéric Gressent
- Plant Health Institute of Montpellier (PHIM), INRAE, UMR Univ Montpellier/IRD/SupAgro/INRAE/CIRAD, TA-A82/J Campus de Baillarguet, 34398 Montpellier, France
| | - Jean-François Arrighi
- Plant Health Institute of Montpellier (PHIM), IRD, UMR Univ Montpellier/IRD/SupAgro/INRAE/CIRAD, TA-A82/J Campus de Baillarguet, 34398 Montpellier, France
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Lin Y, Zhu Y, Wang L, Zheng Y, Xie Y, Cai Q, He W, Xie H, Liu H, Wang Y, Cui L, Wei Y, Xie H, Zhang J. Overexpression of a GIPC glycosyltransferase gene, OsGMT1, suppresses plant immunity and delays heading time in rice. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 331:111674. [PMID: 36948404 DOI: 10.1016/j.plantsci.2023.111674] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/10/2023] [Accepted: 03/12/2023] [Indexed: 06/18/2023]
Abstract
Glycosylinositol phosphorylceramides (GIPCs) are the major sphingolipids in the plant plasma membrane. In Arabidopsis, mutations of genes involved in the synthesis of GIPCs affect many physiological aspects of plants, including growth, pollen fertility, defense, and stress signaling. Loss of function of the GIPC MANNOSYL-TRANSFERASE1 (AtGMT1) results in GIPC misglycosylation and induces plant immune responses accompanied by a severely dwarfed phenotype, thus indicating that GIPCs play important roles in plant immunity. Here, we investigated the enzymatic activity and phenotypes of transgenic lines of OsGMT1, the ortholog of AtGMT1. Sphingolipidomic analysis indicated that OsGMT1 retained the enzymatic activity of GIPC hexose (Hex) glycosylation, but the knockout lines did not accumulate H2O2. In contrast, the OsGMT1 overexpression lines showed significant down-regulation of several defense-associated or cell wall synthesis-associated genes, and enhanced sensitivity to rice blast. Furthermore, we first demonstrated the sensitivity of rice cells to MoNLP1 protein through calcein AM release assays using rice protoplasts, thus legitimizing the presence of MoNLPs in rice blast fungus. In addition, yeast two-hybrid screens using OsGMT1 as bait revealed that OsGMT1 may regulate heading time through the OsHAP5C signaling pathway. Together, our findings suggested clear physiological functional differentiation of GMT1 orthologs between rice and Arabidopsis.
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Affiliation(s)
- Yuelong Lin
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Yongsheng Zhu
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Lanning Wang
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Yanmei Zheng
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Yunjie Xie
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Qiuhua Cai
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Wei He
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Hongguang Xie
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Haitao Liu
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Yingheng Wang
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Lili Cui
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Yidong Wei
- Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China
| | - Huaan Xie
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China.
| | - Jianfu Zhang
- College of Agronomy, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350019, China; State Key Laboratory for Ecological Control of Crop Pests between Fujian and Taiwan/National Engineering Laboratory of Rice/South China Research Base of State Key Laboratory of Hybrid Rice/Incubating Base of State Key Laboratory of Crop Germplasm Innovation and Molecular Breeding between Fujian and Ministry of Science and Technology/Fuzhou Branch of National Rice Improvement Center/Key Laboratory of Hybrid Rice Germplasm Innovation and Molecular Breeding of Ministry of Agriculture and Rural Areas for South China/Fujian Engineering Laboratory of Crop Molecular Breeding/Fujian Key Laboratory of Rice Molecular Breeding, Fuzhou 350003, Fujian, China.
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Haslam TM, Feussner I. Diversity in sphingolipid metabolism across land plants. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:2785-2798. [PMID: 35560193 PMCID: PMC9113257 DOI: 10.1093/jxb/erab558] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/21/2021] [Indexed: 05/08/2023]
Abstract
Sphingolipids are essential metabolites found in all plant species. They are required for plasma membrane integrity, tolerance of and responses to biotic and abiotic stresses, and intracellular signalling. There is extensive diversity in the sphingolipid content of different plant species, and in the identities and roles of enzymes required for their processing. In this review, we survey results obtained from investigations of the classical genetic model Arabidopsis thaliana, from assorted dicots with less extensive genetic toolkits, from the model monocot Oryza sativa, and finally from the model bryophyte Physcomitrium patens. For each species or group, we first broadly summarize what is known about sphingolipid content. We then discuss the most insightful and puzzling features of modifications to the hydrophobic ceramides, and to the polar headgroups of complex sphingolipids. Altogether, these data can serve as a framework for our knowledge of sphingolipid metabolism across the plant kingdom. This chemical and metabolic heterogeneity underpins equally diverse functions. With greater availability of different tools for analytical measurements and genetic manipulation, our field is entering an exciting phase of expanding our knowledge of the biological functions of this persistently cryptic class of lipids.
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Affiliation(s)
- Tegan M Haslam
- University of Goettingen, Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, D-37077, Goettingen, Germany
| | - Ivo Feussner
- University of Goettingen, Albrecht-von-Haller-Institute for Plant Sciences, Department of Plant Biochemistry, Justus-von-Liebig-Weg 11, D-37077, Goettingen, Germany
- University of Goettingen, Goettingen Center for Molecular Biosciences (GZMB), Service Unit for Metabolomics and Lipidomics, Goettingen, Germany
- University of Goettingen, Goettingen Center for Molecular Biosciences (GZMB), Department of Plant Biochemistry, Goettingen, Germany
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6
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Vítová M, Čížková M, Náhlík V, Řezanka T. Changes in glycosyl inositol phosphoceramides during the cell cycle of the red alga Galdieria sulphuraria. PHYTOCHEMISTRY 2022; 194:113025. [PMID: 34839129 DOI: 10.1016/j.phytochem.2021.113025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/15/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
Sphingolipids are significant component of plant-cell plasma membranes, as well as algal membranes, and mediate various biological processes. One of these processes is the change in lipid content during the cell cycle. This change is key to understanding cell viability and proliferation. There are relatively few papers describing highly glycosylated glycosyl inositol phosphorylceramide (GIPC) due to problems associated with the extractability of GIPCs and their analysis, especially in algae. After alkaline hydrolysis of total lipids from the red alga Galdieria sulphuraria, GIPCs were measured by high-resolution tandem mass spectrometry and fragmentation of precursor ions in an Orbitrap mass spectrometer in order to elucidate the structures of molecular species. Fragmentation experiments such as tandem mass spectrometry in the negative ion mode were performed to determine both the ceramide group and polar head structures. Measurement of mass spectra in the negative regime was possible because the phosphate group stabilizes negative molecular ions [M-H]-. ANALYSIS: of GIPCs at various stages of the cell cycle provided information on their abundance. It was found that, depending on the phases of the cell cycle, in particular during division, the uptake of all three components of GIPC, i.e., long-chain amino alcohols, fatty acids, and polar heads, changes. Structural modifications of the polar headgroup significantly increased the number of molecular species. Analysis demonstrated a convex characteristic for molecular species with only one saccharide (hexose or hexuronic acid) as the polar head. For two carbohydrates, the course of Hex-HexA was linear, while for HexA-HexA it was concave. The same was true for GIPC with three and four monosaccharides.
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Affiliation(s)
- Milada Vítová
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, Novohradská 237, 379 81 Třeboň, Czech Republic
| | - Mária Čížková
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, Novohradská 237, 379 81 Třeboň, Czech Republic
| | - Vít Náhlík
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, Novohradská 237, 379 81 Třeboň, Czech Republic; Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05 České Budějovice, Czech Republic
| | - Tomáš Řezanka
- Institute of Microbiology of the Czech Academy of Sciences, Vídeňská 1083, 142 20 Prague, Czech Republic.
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Steinberger AR, Merino WO, Cahoon RE, Cahoon EB, Lynch DV. Disruption of long-chain base hydroxylation alters growth and impacts sphingolipid synthesis in Physcomitrella patens. PLANT DIRECT 2021; 5:e336. [PMID: 34355113 PMCID: PMC8320657 DOI: 10.1002/pld3.336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 06/08/2021] [Accepted: 06/19/2021] [Indexed: 05/24/2023]
Abstract
Sphingolipids have roles as membrane structural components and as bioactive molecules in plants. In Physcomitrella patens, 4-hydroxysphinganine (phytosphingosine, t18:0) is the predominant sphingolipid long-chain base (LCB). To assess the functional significance of t18:0, CRISPR-Cas9 mutagenesis was used to generate mutant lines lacking the sole SPHINGOID BASE HYDROXYLASE (SBH) gene encoding the hydroxylase responsible for converting sphinganine (d18:0) to t18:0. Total sphingolipid content in sbh protonemata was 2.4-fold higher than in wild-type. Modest changes in glycosyl inositolphosphorylceramide (GIPC) glycosylation patterns occurred. Sphingolipidomic analyses of mutants lacking t18:0 indicated modest alterations in acyl-chain pairing with d18:0 in GIPCs and ceramides, but dramatic alterations in acyl-chain pairing in glucosylceramides, in which 4,8-sphingadienine (d18:2) was the principal LCB. A striking accumulation of free and phosphorylated LCBs accompanied loss of the hydroxylase. The sbh lines exhibited altered morphology, including smaller chloronemal cell size, irregular cell shape, reduced gametophore size, and increased pigmentation. In the presence of the synthetic trihydroxy LCB t17:0, the endogenous sphingolipid content of sbh lines decreased to wild-type levels, and the mutants exhibited phenotypes more similar to wild-type plants. These results demonstrate the importance of sphingolipid content and composition to Physcomitrella growth. They also illuminate similarities in regulating sphingolipid content but differences in regulating sphingolipid species composition between the bryophyte P. patens and angiosperm A. thaliana.
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Affiliation(s)
| | | | - Rebecca E. Cahoon
- Center for Plant Science Innovation and Department of BiochemistryUniversity of NebraskaLincolnNEUSA
| | - Edgar B. Cahoon
- Center for Plant Science Innovation and Department of BiochemistryUniversity of NebraskaLincolnNEUSA
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8
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Liquid chromatography-tandem mass spectrometry with a new separation mode for rapid profiling of the Z/E isomers of plant glucosylceramides. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1178:122807. [PMID: 34147952 DOI: 10.1016/j.jchromb.2021.122807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/04/2021] [Accepted: 05/23/2021] [Indexed: 11/27/2022]
Abstract
Plant glucosylceramide (GlcCer) is characterized by various long-chain bases (LCBs) containing a Z/E isomeric unsaturated bond at the Δ8 position. The isomer ratio of GlcCer is highly diversified among plant species and is involved in tolerance to membrane fluidity-associated stresses such as chilling and aluminum toxicity. Therefore, a plant GlcCer isomer-selective quantitative method is required, allowing further sphingolipidomic studies for crop breeding. We here report a new technique for rapid determination of the Z/E isomers of plant GlcCer. A Cholester column contains cholesteryl groups as the hydrophobic stationary phase and separated the GlcCer isomers more efficiently than a conventional C18 column. We also investigated various mobile phases and column temperatures. The optimized column, solvent, and temperature conditions provided comprehensive profiles of the Z/E ratios of GlcCer in crude extracts of plant materials in less than 20 min. This high-throughput method will facilitate the large-scale profiling of plant GlcCer isomers.
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9
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Batsale M, Bahammou D, Fouillen L, Mongrand S, Joubès J, Domergue F. Biosynthesis and Functions of Very-Long-Chain Fatty Acids in the Responses of Plants to Abiotic and Biotic Stresses. Cells 2021; 10:1284. [PMID: 34064239 PMCID: PMC8224384 DOI: 10.3390/cells10061284] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 12/22/2022] Open
Abstract
Very-long-chain fatty acids (i.e., fatty acids with more than 18 carbon atoms; VLCFA) are important molecules that play crucial physiological and structural roles in plants. VLCFA are specifically present in several membrane lipids and essential for membrane homeostasis. Their specific accumulation in the sphingolipids of the plasma membrane outer leaflet is of primordial importance for its correct functioning in intercellular communication. VLCFA are found in phospholipids, notably in phosphatidylserine and phosphatidylethanolamine, where they could play a role in membrane domain organization and interleaflet coupling. In epidermal cells, VLCFA are precursors of the cuticular waxes of the plant cuticle, which are of primary importance for many interactions of the plant with its surrounding environment. VLCFA are also major components of the root suberin barrier, which has been shown to be fundamental for nutrient homeostasis and plant adaptation to adverse conditions. Finally, some plants store VLCFA in the triacylglycerols of their seeds so that they later play a pivotal role in seed germination. In this review, taking advantage of the many studies conducted using Arabidopsis thaliana as a model, we present our current knowledge on the biosynthesis and regulation of VLCFA in plants, and on the various functions that VLCFA and their derivatives play in the interactions of plants with their abiotic and biotic environment.
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Affiliation(s)
| | | | | | | | | | - Frédéric Domergue
- University of Bordeaux, CNRS, Laboratoire de Biogenèse Membranaire, UMR 5200, F-33140 Villenave d’Ornon, France; (M.B.); (D.B.); (L.F.); (S.M.); (J.J.)
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10
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Biophysical analysis of the plant-specific GIPC sphingolipids reveals multiple modes of membrane regulation. J Biol Chem 2021; 296:100602. [PMID: 33785359 PMCID: PMC8099651 DOI: 10.1016/j.jbc.2021.100602] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 03/03/2021] [Accepted: 03/26/2021] [Indexed: 12/24/2022] Open
Abstract
The plant plasma membrane (PM) is an essential barrier between the cell and the external environment, controlling signal perception and transmission. It consists of an asymmetrical lipid bilayer made up of three different lipid classes: sphingolipids, sterols, and phospholipids. The glycosyl inositol phosphoryl ceramides (GIPCs), representing up to 40% of total sphingolipids, are assumed to be almost exclusively in the outer leaflet of the PM. However, their biological role and properties are poorly defined. In this study, we investigated the role of GIPCs in membrane organization. Because GIPCs are not commercially available, we developed a protocol to extract and isolate GIPC-enriched fractions from eudicots (cauliflower and tobacco) and monocots (leek and rice). Lipidomic analysis confirmed the presence of trihydroxylated long chain bases and 2-hydroxylated very long-chain fatty acids up to 26 carbon atoms. The glycan head groups of the GIPCs from monocots and dicots were analyzed by gas chromatograph-mass spectrometry, revealing different sugar moieties. Multiple biophysics tools, namely Langmuir monolayer, ζ-Potential, light scattering, neutron reflectivity, solid state 2H-NMR, and molecular modeling, were used to investigate the physical properties of the GIPCs, as well as their interaction with free and conjugated phytosterols. We showed that GIPCs increase the thickness and electronegativity of model membranes, interact differentially with the different phytosterols species, and regulate the gel-to-fluid phase transition during temperature variations. These results unveil the multiple roles played by GIPCs in the plant PM.
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11
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Jing B, Ishikawa T, Soltis N, Inada N, Liang Y, Murawska G, Fang L, Andeberhan F, Pidatala R, Yu X, Baidoo E, Kawai‐Yamada M, Loque D, Kliebenstein DJ, Dupree P, Mortimer JC. The Arabidopsis thaliana nucleotide sugar transporter GONST2 is a functional homolog of GONST1. PLANT DIRECT 2021; 5:e00309. [PMID: 33763627 PMCID: PMC7980081 DOI: 10.1002/pld3.309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 11/24/2020] [Accepted: 01/27/2021] [Indexed: 05/15/2023]
Abstract
Glycosylinositolphosphorylceramides (GIPCs) are the predominant lipid in the outer leaflet of the plasma membrane. Characterized GIPC glycosylation mutants have severe or lethal plant phenotypes. However, the function of the glycosylation is unclear. Previously, we characterized Arabidopsis thaliana GONST1 and showed that it was a nucleotide sugar transporter which provides GDP-mannose for GIPC glycosylation. gonst1 has a severe growth phenotype, as well as a constitutive defense response. Here, we characterize a mutant in GONST1's closest homolog, GONST2. The gonst2-1 allele has a minor change to GIPC headgroup glycosylation. Like other reported GIPC glycosylation mutants, gonst1-1gonst2-1 has reduced cellulose, a cell wall polymer that is synthesized at the plasma membrane. The gonst2-1 allele has increased resistance to a biotrophic pathogen Golovinomyces orontii but not the necrotrophic pathogen Botrytis cinerea. Expression of GONST2 under the GONST1 promoter can rescue the gonst1 phenotype, indicating that GONST2 has a similar function to GONST1 in providing GDP-D-Man for GIPC mannosylation.
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Affiliation(s)
- Beibei Jing
- Joint BioEnergy InstituteEmeryvilleCAUSA
- Environmental Genomics and Systems Biology DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | - Toshiki Ishikawa
- Graduate School of Science and EngineeringSaitama UniversityJapan
| | | | - Noriko Inada
- Graduate School of Biological SciencesNAISTNaraJapan
- Present address:
Graduate School of Life and Environmental SciencesOsaka Prefecture UniversityOsakaJapan
| | - Yan Liang
- Joint BioEnergy InstituteEmeryvilleCAUSA
- Environmental Genomics and Systems Biology DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | - Gosia Murawska
- Joint BioEnergy InstituteEmeryvilleCAUSA
- Environmental Genomics and Systems Biology DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
- Present address:
Chemistry DepartmentBaselSwitzerland
| | - Lin Fang
- Joint BioEnergy InstituteEmeryvilleCAUSA
- Environmental Genomics and Systems Biology DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
- Present address:
Guangdong Provincial Key Laboratory of Applied BotanySouth China Botanical GardenChinese Academy of SciencesGuangzhouChina
| | - Fekadu Andeberhan
- Joint BioEnergy InstituteEmeryvilleCAUSA
- Environmental Genomics and Systems Biology DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | - Ramana Pidatala
- Joint BioEnergy InstituteEmeryvilleCAUSA
- Environmental Genomics and Systems Biology DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | - Xiaolan Yu
- Department of BiochemistryUniversity of CambridgeCambridgeUK
| | - Edward Baidoo
- Joint BioEnergy InstituteEmeryvilleCAUSA
- Environmental Genomics and Systems Biology DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | | | - Dominique Loque
- Joint BioEnergy InstituteEmeryvilleCAUSA
- Environmental Genomics and Systems Biology DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
| | | | - Paul Dupree
- Department of BiochemistryUniversity of CambridgeCambridgeUK
| | - Jenny C. Mortimer
- Joint BioEnergy InstituteEmeryvilleCAUSA
- Environmental Genomics and Systems Biology DivisionLawrence Berkeley National LaboratoryBerkeleyCAUSA
- School of Agriculture, Food and WineUniversity of AdelaideAdelaideSAAustralia
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12
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Bruggeman Q, Piron-Prunier F, Tellier F, Faure JD, Latrasse D, Manza-Mianza D, Mazubert C, Citerne S, Boutet-Mercey S, Lugan R, Bergounioux C, Raynaud C, Benhamed M, Delarue M. Involvement of Arabidopsis BIG protein in cell death mediated by Myo-inositol homeostasis. Sci Rep 2020; 10:11268. [PMID: 32647331 PMCID: PMC7347573 DOI: 10.1038/s41598-020-68235-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 03/16/2020] [Indexed: 01/03/2023] Open
Abstract
Programmed cell death (PCD) is essential for several aspects of plant life. We previously identified the mips1 mutant of Arabidopsis thaliana, which is deficient for the enzyme catalysing myo-inositol synthesis, and that displays light-dependent formation of lesions on leaves due to Salicylic Acid (SA) over-accumulation. Rationale of this work was to identify novel regulators of plant PCD using a genetic approach. A screen for secondary mutations that abolish the mips1 PCD phenotype identified a mutation in the BIG gene, encoding a factor of unknown molecular function that was previously shown to play pleiotropic roles in plant development and defence. Physiological analyses showed that BIG is required for lesion formation in mips1 via SA-dependant signalling. big mutations partly rescued transcriptomic and metabolomics perturbations as stress-related phytohormones homeostasis. In addition, since loss of function of the ceramide synthase LOH2 was not able to abolish cell death induction in mips1, we show that PCD induction is not fully dependent of sphingolipid accumulation as previously suggested. Our results provide further insights into the role of the BIG protein in the control of MIPS1-dependent cell death and also into the impact of sphingolipid homeostasis in this pathway.
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Affiliation(s)
- Quentin Bruggeman
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Paris Diderot, Sorbonne Paris-Cité, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Florence Piron-Prunier
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Paris Diderot, Sorbonne Paris-Cité, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Frédérique Tellier
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, 78000, Versailles, France
| | - Jean-Denis Faure
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, 78000, Versailles, France
| | - David Latrasse
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Paris Diderot, Sorbonne Paris-Cité, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Deborah Manza-Mianza
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Paris Diderot, Sorbonne Paris-Cité, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Christelle Mazubert
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Paris Diderot, Sorbonne Paris-Cité, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Sylvie Citerne
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, 78000, Versailles, France
| | - Stéphanie Boutet-Mercey
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, 78000, Versailles, France
| | - Raphael Lugan
- Institut de Biologie Moléculaire Des Plantes, Unité Propre de Recherche 2357 CNRS, Université de Strasbourg, 12 rue du Général Zimmer, 67084, Strasbourg Cedex, France
| | - Catherine Bergounioux
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Paris Diderot, Sorbonne Paris-Cité, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Cécile Raynaud
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Paris Diderot, Sorbonne Paris-Cité, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Moussa Benhamed
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Paris Diderot, Sorbonne Paris-Cité, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France
| | - Marianne Delarue
- Université Paris-Saclay, CNRS, INRAE, Univ Evry, Paris Diderot, Sorbonne Paris-Cité, Institute of Plant Sciences Paris-Saclay (IPS2), 91405, Orsay, France.
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13
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Hermier D, Lan A, Tellier F, Blais A, Culetto MG, Mathé V, Bellec Y, Gissot L, Schmidely P, Faure JD. Intestinal Availability and Metabolic Effects of Dietary Camelina Sphingolipids during the Metabolic Syndrome Onset in Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:788-798. [PMID: 31852192 DOI: 10.1021/acs.jafc.9b06829] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Sphingolipids appear as a promising class of components susceptible to prevent the onset of the metabolic syndrome (MetS). Gut availability and effects of Camelina sativa sphingolipids were investigated in a mouse model of dietary-induced MetS. Seed meals from two Camelina sativa lines enriched, respectively, in C24- and C16-NH2- glycosyl-inositol-phosphoryl-ceramides (NH2GIPC) were used in hypercaloric diets. After 5 weeks on these two hypercaloric diets, two markers of the MetS were alleviated (adiposity and insulin resistance) as well as inflammation markers and colon barrier dysfunction. A more pronounced effect was observed with the C16-NH2GIPC-enriched HC diet, in particular for colon barrier function. Despite a lower digestibility, C16-NH2GIPC were more prevalent in the intestine wall. Sphingolipids provided as camelina meal can therefore counteract some deleterious effects of a hypercaloric diet in mice at the intestinal and systemic levels. Interestingly, these beneficial effects seem partly dependent on sphingolipid acyl chain length.
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Affiliation(s)
- Dominique Hermier
- UMR PNCA, AgroParisTech , INRAE, Université Paris-Saclay , 75005 Paris , France
| | - Annaïg Lan
- UMR PNCA, AgroParisTech , INRAE, Université Paris-Saclay , 75005 Paris , France
| | - Frédérique Tellier
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, CNRS , Université Paris-Saclay , 78000 Versailles , France
| | - Anne Blais
- UMR PNCA, AgroParisTech , INRAE, Université Paris-Saclay , 75005 Paris , France
| | | | - Véronique Mathé
- UMR PNCA, AgroParisTech , INRAE, Université Paris-Saclay , 75005 Paris , France
| | - Yannick Bellec
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, CNRS , Université Paris-Saclay , 78000 Versailles , France
| | - Lionel Gissot
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, CNRS , Université Paris-Saclay , 78000 Versailles , France
| | - Philippe Schmidely
- UMR Modélisation Systémique Appliquée aux Ruminants, AgroParisTech , INRAE, Université Paris-Saclay , 75005 Paris , France
| | - Jean-Denis Faure
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, CNRS , Université Paris-Saclay , 78000 Versailles , France
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14
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Havé M, Luo J, Tellier F, Balliau T, Cueff G, Chardon F, Zivy M, Rajjou L, Cacas JL, Masclaux-Daubresse C. Proteomic and lipidomic analyses of the Arabidopsis atg5 autophagy mutant reveal major changes in endoplasmic reticulum and peroxisome metabolisms and in lipid composition. THE NEW PHYTOLOGIST 2019; 223:1461-1477. [PMID: 31077612 DOI: 10.1111/nph.15913] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 04/29/2019] [Indexed: 05/21/2023]
Abstract
Autophagy is a universal mechanism in eukaryotic cells that facilitates the degradation of unwanted cell constituents and is essential for cell homeostasis and nutrient recycling. The salicylic acid-independent effects of autophagy defects on leaf metabolism were determined through large-scale proteomic and lipidomic analyses of atg5 and atg5/sid2 mutants under different nitrogen and sulfur growth conditions. Results revealed that irrespective of the growth conditions, plants carrying the atg5 mutation presented all the characteristics of endoplasmic reticulum (ER) stress. Increases in peroxisome and ER proteins involved in very long chain fatty acid synthesis and β-oxidation indicated strong modifications of lipid metabolism. Lipidomic analyses revealed changes in the concentrations of sphingolipids, phospholipids and galactolipids. Significant accumulations of phospholipids and ceramides and changes in GIPCs (glycosyl-inositol-phosphoryl-ceramides) in atg5 mutants indicated large modifications in endomembrane-lipid and especially plasma membrane-lipid composition. Decreases in chloroplast proteins and galactolipids in atg5 under low nutrient conditions, indicated that chloroplasts were used as lipid reservoirs for β-oxidation in atg5 mutants. In conclusion, this report demonstrates the strong impact of autophagy defect on ER stress and reveals the role of autophagy in the control of plant lipid metabolism and catabolism, influencing both lipid homeostasis and endomembrane composition.
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Affiliation(s)
- Marien Havé
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000, Versailles, France
| | - Jie Luo
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000, Versailles, France
| | - Frédérique Tellier
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000, Versailles, France
| | - Thierry Balliau
- UMR GQE- le Moulon, INRA, Université Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91190, Gif-sur-Yvette, France
| | - Gwendal Cueff
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000, Versailles, France
| | - Fabien Chardon
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000, Versailles, France
| | - Michel Zivy
- UMR GQE- le Moulon, INRA, Université Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, 91190, Gif-sur-Yvette, France
| | - Loic Rajjou
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000, Versailles, France
| | - Jean-Luc Cacas
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000, Versailles, France
| | - Céline Masclaux-Daubresse
- Institut Jean-Pierre Bourgin, INRA, AgroParisTech, CNRS, Université Paris-Saclay, 78000, Versailles, France
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15
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Mamode Cassim A, Gouguet P, Gronnier J, Laurent N, Germain V, Grison M, Boutté Y, Gerbeau-Pissot P, Simon-Plas F, Mongrand S. Plant lipids: Key players of plasma membrane organization and function. Prog Lipid Res 2018; 73:1-27. [PMID: 30465788 DOI: 10.1016/j.plipres.2018.11.002] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 11/07/2018] [Accepted: 11/09/2018] [Indexed: 12/29/2022]
Abstract
The plasma membrane (PM) is the biological membrane that separates the interior of all cells from the outside. The PM is constituted of a huge diversity of proteins and lipids. In this review, we will update the diversity of molecular species of lipids found in plant PM. We will further discuss how lipids govern global properties of the plant PM, explaining that plant lipids are unevenly distributed and are able to organize PM in domains. From that observation, it emerges a complex picture showing a spatial and multiscale segregation of PM components. Finally, we will discuss how lipids are key players in the function of PM in plants, with a particular focus on plant-microbe interaction, transport and hormone signaling, abiotic stress responses, plasmodesmata function. The last chapter is dedicated to the methods that the plant membrane biology community needs to develop to get a comprehensive understanding of membrane organization in plants.
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Affiliation(s)
- Adiilah Mamode Cassim
- Laboratoire de Biogenèse Membranaire (LBM), CNRS, University of Bordeaux, UMR 5200, F-33882 Villenave d'Ornon, France
| | - Paul Gouguet
- Laboratoire de Biogenèse Membranaire (LBM), CNRS, University of Bordeaux, UMR 5200, F-33882 Villenave d'Ornon, France
| | - Julien Gronnier
- Laboratoire de Biogenèse Membranaire (LBM), CNRS, University of Bordeaux, UMR 5200, F-33882 Villenave d'Ornon, France
| | - Nelson Laurent
- Agroécologie, AgroSup Dijon, INRA, University of Bourgogne Franche-Comté, F-21000 Dijon, ERL 6003 CNRS, Dijon, France
| | - Véronique Germain
- Laboratoire de Biogenèse Membranaire (LBM), CNRS, University of Bordeaux, UMR 5200, F-33882 Villenave d'Ornon, France
| | - Magali Grison
- Laboratoire de Biogenèse Membranaire (LBM), CNRS, University of Bordeaux, UMR 5200, F-33882 Villenave d'Ornon, France
| | - Yohann Boutté
- Laboratoire de Biogenèse Membranaire (LBM), CNRS, University of Bordeaux, UMR 5200, F-33882 Villenave d'Ornon, France
| | - Patricia Gerbeau-Pissot
- Agroécologie, AgroSup Dijon, INRA, University of Bourgogne Franche-Comté, F-21000 Dijon, ERL 6003 CNRS, Dijon, France
| | - Françoise Simon-Plas
- Agroécologie, AgroSup Dijon, INRA, University of Bourgogne Franche-Comté, F-21000 Dijon, ERL 6003 CNRS, Dijon, France.
| | - Sébastien Mongrand
- Laboratoire de Biogenèse Membranaire (LBM), CNRS, University of Bordeaux, UMR 5200, F-33882 Villenave d'Ornon, France.
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16
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Ebert B, Rautengarten C, McFarlane HE, Rupasinghe T, Zeng W, Ford K, Scheller HV, Bacic A, Roessner U, Persson S, Heazlewood JL. A Golgi UDP-GlcNAc transporter delivers substrates for N-linked glycans and sphingolipids. NATURE PLANTS 2018; 4:792-801. [PMID: 30224661 DOI: 10.1038/s41477-018-0235-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 07/26/2018] [Indexed: 05/20/2023]
Abstract
Glycosylation requires activated glycosyl donors in the form of nucleotide sugars to drive processes such as post-translational protein modifications and glycolipid and polysaccharide biosynthesis. Most of these reactions occur in the Golgi, requiring cytosolic-derived nucleotide sugars, which need to be actively transferred into the Golgi lumen by nucleotide sugar transporters. We identified a Golgi-localized nucleotide sugar transporter from Arabidopsis thaliana with affinity for UDP-N-acetyl-D-glucosamine (UDP-GlcNAc) and assigned it UDP-GlcNAc transporter 1 (UGNT1). Profiles of N-glycopeptides revealed that plants carrying the ugnt1 loss-of-function allele are virtually devoid of complex and hybrid N-glycans. Instead, the N-glycopeptide population from these alleles exhibited high-mannose structures, representing structures prior to the addition of the first GlcNAc in the Golgi. Concomitantly, sphingolipid profiling revealed that the biosynthesis of GlcNAc-containing glycosyl inositol phosphorylceramides (GIPCs) is also reliant on this transporter. By contrast, plants carrying the loss-of-function alleles affecting ROCK1, which has been reported to transport UDP-GlcNAc and UDP-N-acetylgalactosamine, exhibit no changes in N-glycan or GIPC profiles. Our findings reveal that plants contain a single UDP-GlcNAc transporter that delivers an essential substrate for the maturation of N-glycans and the GIPC class of sphingolipids.
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Affiliation(s)
- Berit Ebert
- School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
| | | | - Heather E McFarlane
- School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Thusitha Rupasinghe
- Metabolomics Australia, School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Wei Zeng
- School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
- ARC Centre of Excellence in Plant Cell Walls, School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Kristina Ford
- School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
- ARC Centre of Excellence in Plant Cell Walls, School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Henrik V Scheller
- Joint BioEnergy Institute and Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
- Department of Plant and Microbial Biology, University of California, Berkeley, CA, USA
| | - Antony Bacic
- School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
- ARC Centre of Excellence in Plant Cell Walls, School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Ute Roessner
- Metabolomics Australia, School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Staffan Persson
- School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia
| | - Joshua L Heazlewood
- School of Biosciences, University of Melbourne, Melbourne, Victoria, Australia.
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17
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Mi J, Han Y, Xu Y, Kou J, Li WJ, Wang JR, Jiang ZH. Deep Profiling of Immunosuppressive Glycosphingolipids and Sphingomyelins in Wild Cordyceps. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8991-8998. [PMID: 30059214 DOI: 10.1021/acs.jafc.8b02706] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Deep profiling of glycosphingolipids and sphingomyelins in wild Cordyceps was carried out by using offline chromatographic enrichment followed by ultrahigh performance liquid chromatography-ultrahigh definition-quadrupole time-of-flight mass spectrometry (UHPLC-UHD-Q-TOF-MS). A total of 119 glycosphingolipids (72 new ones) and 87 sphingomyelins (43 new ones) were identified from wild Cordyceps on the basis of the accurate mass and MS/MS fragmentations, isotope patterns, sphingolipid (SPL) database matching, confirmation by SPL standards, and the reversed-phase liquid chromatographic retention rule. This study is the most comprehensive report on the identification of glycosphingolipids and sphingomyelins from fungus. A subsequent lipopolysaccharide-induced mouse splenic lymphocyte proliferation assay showed that the Cordyceps glycosphingolipid fraction exhibits higher immunosuppressive activity compared to that of Cordyceps sphingomyelins. Our findings provided insight into the chemical diversity of sphingolipids in Cordyceps and chemical evidence for the therapeutic application of wild Cordyceps.
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Affiliation(s)
- Jianing Mi
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health , Macau University of Science and Technology , Macau , China
| | - Yuwei Han
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM , China Pharmaceutical University , 639 Longmian Road , Nanjing 211198 , China
| | - Yingqiong Xu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM , China Pharmaceutical University , 639 Longmian Road , Nanjing 211198 , China
| | - Junping Kou
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM , China Pharmaceutical University , 639 Longmian Road , Nanjing 211198 , China
| | - Wen-Jia Li
- Key Laboratory of State Administration of Traditional Chinese Medicine , China HEC Pharm Co. Ltd , Guangdong 523850 , China
| | - Jing-Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health , Macau University of Science and Technology , Macau , China
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health , Macau University of Science and Technology , Macau , China
- International Institute for Translational Chinese Medicine , Guangzhou University of Chinese Medicine , Guangzhou , China
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18
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Improving Skin Hydration and Age-related Symptoms by Oral Administration of Wheat Glucosylceramides and Digalactosyl Diglycerides: A Human Clinical Study. COSMETICS 2017. [DOI: 10.3390/cosmetics4040037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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19
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Noblet A, Leymarie J, Bailly C. Chilling temperature remodels phospholipidome of Zea mays seeds during imbibition. Sci Rep 2017; 7:8886. [PMID: 28827663 PMCID: PMC5566375 DOI: 10.1038/s41598-017-08904-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/19/2017] [Indexed: 11/28/2022] Open
Abstract
Global warming is a major agricultural issue in the Northern hemisphere where higher temperatures are expected to be associated with restricted water availability. In Europe, for maize, earlier and further northward sowings are forecasted in order to avoid water deficit periods in the crop life cycle. However these conditions may compromise seed germination and stand establishment since they will take place at cold temperatures. It is urgent to better understand the molecular bases of response of germinating maize seeds to cold in order to design genotypes adapted to these novel agricultural practices. Here we have performed a global phospholipidomic study to profile changes in membrane reorganisation during seed imbibition at 10 °C of cold-tolerant and -sensitive maize hybrids. Using a Multiple Reaction Monitoring (MRM-MS/MS) method coupled with HPLC we have identified 80 distinct phospholipids. We show that seed sensitivity to cold temperatures during imbibition relies on the accumulation of saturated or poorly unsaturated fatty acids, whatever the phospholipid class. In contrast seeds of cold-tolerant hybrid accumulated polyunsaturated chains which was associated with lower electrolyte leakage during imbibition at 10 °C. The expression of fatty acid desaturase genes provides a molecular model of maize seed sensitivity to imbibitional chilling damage.
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Affiliation(s)
- Agathe Noblet
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut de Biologie Paris-Seine (IBPS), UMR 7622, Biologie du développement, F-75005, Paris, France
| | - Juliette Leymarie
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut de Biologie Paris-Seine (IBPS), UMR 7622, Biologie du développement, F-75005, Paris, France.,Université Paris Est Créteil, Faculté des Sciences et Technologie IEES Paris, EcoPhyS, 94100, Créteil, France
| | - Christophe Bailly
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut de Biologie Paris-Seine (IBPS), UMR 7622, Biologie du développement, F-75005, Paris, France.
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20
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Yanagawa D, Ishikawa T, Imai H. Synthesis and degradation of long-chain base phosphates affect fumonisin B 1-induced cell death in Arabidopsis thaliana. JOURNAL OF PLANT RESEARCH 2017; 130:571-585. [PMID: 28303405 DOI: 10.1007/s10265-017-0923-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 12/07/2016] [Indexed: 05/12/2023]
Abstract
Fumonisin B1 (FB1), an inducer of cell death, disrupts sphingolipid metabolism; large accumulations of de novo synthesized free long-chain bases (LCBs) are observed. However, it remains unclear whether tolerance to FB1 toxicity in plants is connected with preventing the accumulation of free LCBs through their phosphorylation. Here a workflow for the extraction, detection and quantification of LCB phosphates (LCBPs) in Arabidopsis thaliana was developed. We studied the effect of expression of genes for three enzymes involved in the synthesis and degradation of LCBPs, LCB kinase (LCBK1), LCBP phosphatase (SPP1) and lyase (DPL1) on FB1-induced cell death. As expected, large accumulations of saturated free LCBs, dihydrosphingosine and phytosphingosine, were observed in the FB1-treated leaves. On the other hand, a high level of sphingenine phosphate was found in the FB1-treated leaves even though free sphingenine was found in low amounts in these leaves. In comparison of WT and spp1 plants, the LCBP/LCB ratio is likely to be correlated with the degree of FB1-induced cell death determined by trypan blue staining. The FB1-treated leaves in dpl1 plants showed severe cell death and the elevation of free LCBs and LCBPs. LCBK1-OX and -KD plants showed resistance and sensitivity to FB1, respectively, whereas free LCB and LCBP levels in FB1-treated LCBK1-OX and -KD plants were moderately different to those in FB1-treated WT plants. Overall, the findings described here suggest that LCBP/LCB homeostasis is an important topic that participates in the tolerance of plant cells to FB1.
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Affiliation(s)
- Daiki Yanagawa
- Department of Biology, Graduate School of Natural Science, Konan University, Kobe, 658-8501, Japan
- The Institute for Integrative Neurobiology, Konan University, Kobe, 658-8501, Japan
| | - Toshiki Ishikawa
- Graduate School of Science and Engineering, Saitama University, Saitama, 338-8570, Japan
| | - Hiroyuki Imai
- Department of Biology, Graduate School of Natural Science, Konan University, Kobe, 658-8501, Japan.
- The Institute for Integrative Neurobiology, Konan University, Kobe, 658-8501, Japan.
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21
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Ishikawa T, Ito Y, Kawai-Yamada M. Molecular characterization and targeted quantitative profiling of the sphingolipidome in rice. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2016; 88:681-693. [PMID: 27454201 DOI: 10.1111/tpj.13281] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 07/10/2016] [Accepted: 07/21/2016] [Indexed: 05/05/2023]
Abstract
Recent advances in comprehensive metabolite profiling techniques, the foundation of metabolomics, is facilitating our understanding of the functions, regulation and complex networks of various metabolites in organisms. Here, we report a quantitative metabolomics technique for complex plant sphingolipids, composed of various polar head groups as well as structural isomers of hydrophobic ceramide moieties. Rice (Oryza sativa L.) was used as an experimental model of monocotyledonous plants and has been demonstrated to possess a highly complex sphingolipidome including hundreds of molecular species with a wide range of abundance. We established a high-throughput scheme for lipid preparation and mass spectrometry-based characterization of complex sphingolipid structures, which provided basic information to create a comprehensive theoretical library for targeted quantitative profiling of complex sphingolipids in rice. The established sphingolipidomic approach combined with multivariate analyses of the large dataset obtained clearly showed that different classes of rice sphingolipids, particularly including subclasses of glycosylinositol phosphoceramide with various sugar-chain head groups, are distributed with distinct quantitative profiles in various rice tissues, indicating tissue-dependent metabolism and biological functions of the lipid classes and subclasses. The sphingolipidomic analysis also highlighted that disruption of a lipid-associated gene causes a typical sphingolipidomic change in a gene-dependent manner. These results clearly support the utility of the sphingolipidomic approach in application to wide screening of sphingolipid-metabolic phenotypes as well as deeper investigation of metabolism and biological functions of complex sphingolipid species in plants.
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Affiliation(s)
- Toshiki Ishikawa
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama, 338-8570, Japan
| | - Yukihiro Ito
- Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiyamachi, Aoba-ku, Sendai, 981-8555, Japan
| | - Maki Kawai-Yamada
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama, 338-8570, Japan
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22
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Michaelson LV, Napier JA, Molino D, Faure JD. Plant sphingolipids: Their importance in cellular organization and adaption. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1861:1329-1335. [PMID: 27086144 PMCID: PMC4970446 DOI: 10.1016/j.bbalip.2016.04.003] [Citation(s) in RCA: 124] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 03/31/2016] [Accepted: 04/01/2016] [Indexed: 12/22/2022]
Abstract
Sphingolipids and their phosphorylated derivatives are ubiquitous bio-active components of cells. They are structural elements in the lipid bilayer and contribute to the dynamic nature of the membrane. They have been implicated in many cellular processes in yeast and animal cells, including aspects of signaling, apoptosis, and senescence. Although sphingolipids have a better defined role in animal systems, they have been shown to be central to many essential processes in plants including but not limited to, pollen development, signal transduction and in the response to biotic and abiotic stress. A fuller understanding of the roles of sphingolipids within plants has been facilitated by classical biochemical studies and the identification of mutants of model species. Recently the development of powerful mass spectrometry techniques hailed the advent of the emerging field of lipidomics enabling more accurate sphingolipid detection and quantitation. This review will consider plant sphingolipid biosynthesis and function in the context of these new developments. This article is part of a Special Issue entitled: Plant Lipid Biology edited by Kent D. Chapman and Ivo Feussner.
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Affiliation(s)
- Louise V Michaelson
- Biological Chemistry and Crop Protection, Rothamsted Research, Harpenden AL5 2JQ, UK.
| | - Johnathan A Napier
- Biological Chemistry and Crop Protection, Rothamsted Research, Harpenden AL5 2JQ, UK.
| | - Diana Molino
- Ecole Normale Supérieure-PSL Research University, Département de Chimie, Sorbonne Universités - UPMC Univ Paris 06, CNRS UMR 8640 PASTEUR, Paris, France.
| | - Jean-Denis Faure
- INRA, Institut Jean-Pierre Bourgin, UMR 1318, ERL CNRS3559, Saclay Plant Sciences, Versailles, France; Agro Paris Tech, Institut Jean-Pierre Bourgin, UMR 1318, ERL CNRS3559, Saclay Plant Sciences, Versailles, France.
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23
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Luttgeharm KD, Kimberlin AN, Cahoon RE, Cerny RL, Napier JA, Markham JE, Cahoon EB. Sphingolipid metabolism is strikingly different between pollen and leaf in Arabidopsis as revealed by compositional and gene expression profiling. PHYTOCHEMISTRY 2015; 115:121-9. [PMID: 25794895 DOI: 10.1016/j.phytochem.2015.02.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 01/05/2015] [Accepted: 02/22/2015] [Indexed: 05/28/2023]
Abstract
Although sphingolipids are essential for male gametophytic development in Arabidopsis thaliana, sphingolipid composition and biosynthetic gene expression have not been previously examined in pollen. In this report, electrospray ionization (ESI)-MS/MS was applied to characterization of sphingolipid compositional profiles in pollen isolated from wild type Arabidopsis Col-0 and a long-chain base (LCB) Δ4 desaturase mutant. Pollen fractions were highly enriched in glucosylceramides (GlcCer) relative to levels previously reported in leaves. Accompanying the loss of the Δ4 unsaturated LCB sphingadiene (d18:2) in the Δ4 desaturase mutant was a 50% reduction in GlcCer concentrations. In addition, pollen glycosylinositolphosphoceramides (GIPCs) were found to have a complex array of N-acetyl-glycosylated GIPCs, including species with up to three pentose units that were absent from leaf GIPCs. Underlying the distinct sphingolipid composition of pollen, genes for key biosynthetic enzymes for GlcCer and d18:2 synthesis and metabolism were more highly expressed in pollen than in leaves or seedlings, including genes for GlcCer synthase (GCS), sphingoid base C-4 hydroxylase 2 (SBH2), LCB Δ8 desaturases (SLD1 and SLD2), and LOH2 ceramide synthase (LOH2). Overall, these findings indicate strikingly divergent sphingolipid metabolism between pollen and leaves in Arabidopsis, the significance of which remains to be determined.
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Affiliation(s)
- Kyle D Luttgeharm
- Center for Plant Science Innovation and Department of Biochemistry, E318 Beadle Center, 1901 Vine Street, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
| | - Athen N Kimberlin
- Center for Plant Science Innovation and Department of Biochemistry, E318 Beadle Center, 1901 Vine Street, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
| | - Rebecca E Cahoon
- Center for Plant Science Innovation and Department of Biochemistry, E318 Beadle Center, 1901 Vine Street, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
| | - Ronald L Cerny
- Department of Chemistry, 710 Hamilton Hall, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
| | - Johnathan A Napier
- Department of Biological Chemistry and Crop Protection, Rothamsted Research, Harpenden AL5 2JQ, United Kingdom.
| | - Jennifer E Markham
- Center for Plant Science Innovation and Department of Biochemistry, E318 Beadle Center, 1901 Vine Street, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
| | - Edgar B Cahoon
- Center for Plant Science Innovation and Department of Biochemistry, E318 Beadle Center, 1901 Vine Street, University of Nebraska-Lincoln, Lincoln, NE 68588, USA.
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