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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Zhu Y, Xie L, Chen GQ, Lee MY, Loque D, Scheller HV. A transgene design for enhancing oil content in Arabidopsis and Camelina seeds. Biotechnol Biofuels 2018; 11:46. [PMID: 29483939 PMCID: PMC5820799 DOI: 10.1186/s13068-018-1049-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Accepted: 02/12/2018] [Indexed: 05/29/2023]
Abstract
BACKGROUND Increasing the oil yield is a major objective for oilseed crop improvement. Oil biosynthesis and accumulation are influenced by multiple genes involved in embryo and seed development. The leafy cotyledon1 (LEC1) is a master regulator of embryo development that also enhances the expression of genes involved in fatty acid biosynthesis. We speculated that seed oil could be increased by targeted overexpression of a master regulating transcription factor for oil biosynthesis, using a downstream promoter for a gene in the oil biosynthesis pathway. To verify the effect of such a combination on seed oil content, we made constructs with maize (Zea mays) ZmLEC1 driven by serine carboxypeptidase-like (SCPL17) and acyl carrier protein (ACP5) promoters, respectively, for expression in transgenic Arabidopsis thaliana and Camelina sativa. RESULTS Agrobacterium-mediated transformation successfully generated Arabidopsis and Camelina lines that overexpressed ZmLEC1 under the control of a seed-specific promoter. This overexpression does not appear to be detrimental to seed vigor under laboratory conditions and did not cause observable abnormal growth phenotypes throughout the life cycle of the plants. Overexpression of ZmLEC1 increased the oil content in mature seeds by more than 20% in Arabidopsis and 26% in Camelina. CONCLUSION The findings suggested that the maize master regulator, ZmLEC1, driven by a downstream seed-specific promoter, can be used to increase oil production in Arabidopsis and Camelina and might be a promising target for increasing oil yield in oilseed crops.0.
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Affiliation(s)
- Yerong Zhu
- Joint BioEnergy Institute and Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
- College of Life Science, Nankai University, Tianjin, 300071 China
| | - Linan Xie
- Joint BioEnergy Institute and Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
- College of Life Science, Northeast Forestry University, Harbin, 150040 China
| | - Grace Q. Chen
- Western Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, 800 Buchanan Street, Albany, CA 94710 USA
| | - Mi Yeon Lee
- Joint BioEnergy Institute and Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Dominique Loque
- Joint BioEnergy Institute and Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA 94720 USA
| | - Henrik Vibe Scheller
- Joint BioEnergy Institute and Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
- Department of Plant and Microbial Biology, University of California Berkeley, Berkeley, CA 94720 USA
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Scullin C, Cruz AG, Chuang YD, Simmons BA, Loque D, Singh S. Restricting lignin and enhancing sugar deposition in secondary cell walls enhances monomeric sugar release after low temperature ionic liquid pretreatment. Biotechnol Biofuels 2015; 8:95. [PMID: 26161139 PMCID: PMC4496950 DOI: 10.1186/s13068-015-0275-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 06/15/2015] [Indexed: 05/02/2023]
Abstract
BACKGROUND Lignocellulosic biomass has the potential to be a major source of renewable sugar for biofuel production. Before enzymatic hydrolysis, biomass must first undergo a pretreatment step in order to be more susceptible to saccharification and generate high yields of fermentable sugars. Lignin, a complex, interlinked, phenolic polymer, associates with secondary cell wall polysaccharides, rendering them less accessible to enzymatic hydrolysis. Herein, we describe the analysis of engineered Arabidopsis lines where lignin biosynthesis was repressed in fiber tissues but retained in the vessels, and polysaccharide deposition was enhanced in fiber cells with little to no apparent negative impact on growth phenotype. RESULTS Engineered Arabidopsis plants were treated with the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate 1-ethyl-3-methylimidazolium acetate ([C2C1im][OAc]) at 10 % wt biomass loading at either 70 °C for 5 h or 140 °C for 3 h. After pretreatment at 140 °C and subsequent saccharification, the relative peak sugar recovery of ~26.7 g sugar per 100 g biomass was not statistically different for the wild type than the peak recovery of ~25.8 g sugar per 100 g biomass for the engineered plants (84 versus 86 % glucose from the starting biomass). Reducing the pretreatment temperature to 70 °C for 5 h resulted in a significant reduction in the peak sugar recovery obtained from the wild type to 16.2 g sugar per 100 g biomass, whereas the engineered lines with reduced lignin content exhibit a higher peak sugar recovery of 27.3 g sugar per 100 g biomass and 79 % glucose recoveries. CONCLUSIONS The engineered Arabidopsis lines generate high sugar yields after pretreatment at 70 °C for 5 h and subsequent saccharification, while the wild type exhibits a reduced sugar yield relative to those obtained after pretreatment at 140 °C. Our results demonstrate that employing cell wall engineering efforts to decrease the recalcitrance of lignocellulosic biomass has the potential to drastically reduce the energy required for effective pretreatment.
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Affiliation(s)
- Chessa Scullin
- />Deconstruction Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA USA
- />Biological and Materials Science Center, Sandia National Laboratories, Livermore, CA USA
| | - Alejandro G. Cruz
- />Deconstruction Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA USA
- />Advanced Light Source, Lawrence Berkeley National Lab, Berkeley, CA USA
| | - Yi-De Chuang
- />Advanced Light Source, Lawrence Berkeley National Lab, Berkeley, CA USA
| | - Blake A. Simmons
- />Deconstruction Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA USA
- />Biological and Materials Science Center, Sandia National Laboratories, Livermore, CA USA
| | - Dominique Loque
- />Feedstocks Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA USA
- />Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Seema Singh
- />Deconstruction Division, Joint BioEnergy Institute, Lawrence Berkeley National Laboratory, Berkeley, CA USA
- />Biological and Materials Science Center, Sandia National Laboratories, Livermore, CA USA
- />Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608 USA
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Tobimatsu Y, Wagner A, Donaldson L, Mitra P, Niculaes C, Dima O, Kim JI, Anderson N, Loque D, Boerjan W, Chapple C, Ralph J. Visualization of plant cell wall lignification using fluorescence-tagged monolignols. Plant J 2013; 76:357-66. [PMID: 23889038 PMCID: PMC4238399 DOI: 10.1111/tpj.12299] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Revised: 06/19/2013] [Accepted: 07/18/2013] [Indexed: 05/15/2023]
Abstract
Lignin is an abundant phenylpropanoid polymer produced by the oxidative polymerization of p-hydroxycinnamyl alcohols (monolignols). Lignification, i.e., deposition of lignin, is a defining feature of secondary cell wall formation in vascular plants, and provides an important mechanism for their disease resistance; however, many aspects of the cell wall lignification process remain unclear partly because of a lack of suitable imaging methods to monitor the process in vivo. In this study, a set of monolignol analogs γ-linked to fluorogenic aminocoumarin and nitrobenzofuran dyes were synthesized and tested as imaging probes to visualize the cell wall lignification process in Arabidopsis thaliana and Pinus radiata under various feeding regimens. In particular, we demonstrate that the fluorescence-tagged monolignol analogs can penetrate into live plant tissues and cells, and appear to be metabolically incorporated into lignifying cell walls in a highly specific manner. The localization of the fluorogenic lignins synthesized during the feeding period can be readily visualized by fluorescence microscopy and is distinguishable from the other wall components such as polysaccharides as well as the pre-existing lignin that was deposited earlier in development.
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Affiliation(s)
- Yuki Tobimatsu
- Department of Biochemistry and the US Department of Energy’s Great Lakes Bioenergy Research Center (GLBRC), the Wisconsin Energy Institute, University of Wisconsin1552 University Avenue, Madison, WI, 53726, USA
- *For correspondence (e-mails ; )
| | | | | | - Prajakta Mitra
- The US Department of Energy’s Joint BioEnergy Institute (JBEI), Physical Bioscience Division, Lawrence Berkeley National Laboratory5885 Hollis St, Emeryville, CA, 94608, USA
| | - Claudiu Niculaes
- Department of Plant Systems Biology, VIBTechnologiepark 927, B-9052 Gent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityTechnologiepark 927, B-9052 Gent, Belgium
| | - Oana Dima
- Department of Plant Systems Biology, VIBTechnologiepark 927, B-9052 Gent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityTechnologiepark 927, B-9052 Gent, Belgium
| | - Jeong Im Kim
- Department of Biochemistry, Purdue University175 South University Street, West Lafayette, IN, 47907, USA
| | - Nickolas Anderson
- Department of Biochemistry, Purdue University175 South University Street, West Lafayette, IN, 47907, USA
| | - Dominique Loque
- The US Department of Energy’s Joint BioEnergy Institute (JBEI), Physical Bioscience Division, Lawrence Berkeley National Laboratory5885 Hollis St, Emeryville, CA, 94608, USA
| | - Wout Boerjan
- Department of Plant Systems Biology, VIBTechnologiepark 927, B-9052 Gent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent UniversityTechnologiepark 927, B-9052 Gent, Belgium
| | - Clint Chapple
- Department of Biochemistry, Purdue University175 South University Street, West Lafayette, IN, 47907, USA
| | - John Ralph
- Department of Biochemistry and the US Department of Energy’s Great Lakes Bioenergy Research Center (GLBRC), the Wisconsin Energy Institute, University of Wisconsin1552 University Avenue, Madison, WI, 53726, USA
- *For correspondence (e-mails ; )
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Varanasi P, Katsnelson J, Larson DM, Sharma R, Sharma MK, Vega-Sánchez ME, Zemla M, Loque D, Ronald PC, Simmons BA, Singh S, Adams PD, Auer M. Mechanical Stress Analysis as a Method to Understand the Impact of Genetically Engineered Rice and Arabidopsis Plants. Ind Biotechnol (New Rochelle N Y) 2012. [DOI: 10.1089/ind.2012.0011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Patanjali Varanasi
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
- Biomass Science and Conversion Technology Department, Sandia National Laboratories, Livermore, CA
| | - Jacob Katsnelson
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
| | - David M. Larson
- Life Sciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
| | - Rita Sharma
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
- Department of Plant Pathology and the Genome Center, University of California, Davis, CA
| | - Manoj K. Sharma
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
- Department of Plant Pathology and the Genome Center, University of California, Davis, CA
| | - Miguel E. Vega-Sánchez
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
| | - Marcin Zemla
- Life Sciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
| | - Dominique Loque
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
| | - Pamela C. Ronald
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
- Department of Plant Pathology and the Genome Center, University of California, Davis, CA
| | - Blake A. Simmons
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
- Biomass Science and Conversion Technology Department, Sandia National Laboratories, Livermore, CA
| | - Seema Singh
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
- Biomass Science and Conversion Technology Department, Sandia National Laboratories, Livermore, CA
| | - Paul D. Adams
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
| | - Manfred Auer
- Joint BioEnergy Institute, Physical Biosciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
- Life Sciences Division, Lawrence Berkeley National Laboratory, Emeryville, CA
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Abstract
The development of second-generation biofuels--those that do not rely on grain crops as inputs--will require a diverse set of feedstocks that can be grown sustainably and processed cost-effectively. Here we review the outlook and challenges for meeting hoped-for production targets for such biofuels in the United States.
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