Coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice
Cellulose from plant biomass is the largest renewable energy resource of carbon fixed from the atmosphere, which can be converted into fermentable sugars for production into ethanol. However, the cellulose present as lignocellulosic biomass is embedded in a hemicellulose and lignin matrix from which...
| Autores principales: | , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Oxford University Press
2011
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/165969 |
| _version_ | 1855521360223141888 |
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| author | Ambavaram, Madana M.R. Krishnan, Arjun Trijatmiko, Kurniawan R. Pereira, Andy |
| author_browse | Ambavaram, Madana M.R. Krishnan, Arjun Pereira, Andy Trijatmiko, Kurniawan R. |
| author_facet | Ambavaram, Madana M.R. Krishnan, Arjun Trijatmiko, Kurniawan R. Pereira, Andy |
| author_sort | Ambavaram, Madana M.R. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Cellulose from plant biomass is the largest renewable energy resource of carbon fixed from the atmosphere, which can be converted into fermentable sugars for production into ethanol. However, the cellulose present as lignocellulosic biomass is embedded in a hemicellulose and lignin matrix from which it needs to be extracted for efficient processing. Here, we show that expression of an Arabidopsis (Arabidopsis thaliana) transcription factor, SHINE (SHN), in rice (Oryza sativa), a model for the grasses, causes a 34% increase in cellulose and a 45% reduction in lignin content. The rice AtSHN lines also exhibit an altered lignin composition correlated with improved digestibility, with no compromise in plant strength and performance. Using a detailed systems-level analysis of global gene expression in rice, we reveal the SHN regulatory network coordinating down-regulation of lignin biosynthesis and up-regulation of cellulose and other cell wall biosynthesis pathway genes. The results thus support the development of nonfood crops and crop wastes with increased cellulose and low lignin with good agronomic performance that could improve the economic viability of lignocellulosic crop utilization for biofuels. |
| format | Journal Article |
| id | CGSpace165969 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2011 |
| publishDateRange | 2011 |
| publishDateSort | 2011 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | CGSpace1659692025-08-21T15:39:31Z Coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice Ambavaram, Madana M.R. Krishnan, Arjun Trijatmiko, Kurniawan R. Pereira, Andy agricultural wastes agronomic characters arabidopsis thaliana biochemical pathways biofuels biomass biosynthesis cellulose correlation analysis digestibility ethanol gene expression genes lignin renewable energy transcription factors Cellulose from plant biomass is the largest renewable energy resource of carbon fixed from the atmosphere, which can be converted into fermentable sugars for production into ethanol. However, the cellulose present as lignocellulosic biomass is embedded in a hemicellulose and lignin matrix from which it needs to be extracted for efficient processing. Here, we show that expression of an Arabidopsis (Arabidopsis thaliana) transcription factor, SHINE (SHN), in rice (Oryza sativa), a model for the grasses, causes a 34% increase in cellulose and a 45% reduction in lignin content. The rice AtSHN lines also exhibit an altered lignin composition correlated with improved digestibility, with no compromise in plant strength and performance. Using a detailed systems-level analysis of global gene expression in rice, we reveal the SHN regulatory network coordinating down-regulation of lignin biosynthesis and up-regulation of cellulose and other cell wall biosynthesis pathway genes. The results thus support the development of nonfood crops and crop wastes with increased cellulose and low lignin with good agronomic performance that could improve the economic viability of lignocellulosic crop utilization for biofuels. 2011-02-02 2024-12-19T12:55:41Z 2024-12-19T12:55:41Z Journal Article https://hdl.handle.net/10568/165969 en Open Access Oxford University Press Ambavaram, Madana M.R.; Krishnan, Arjun; Trijatmiko, Kurniawan R. and Pereira, Andy. 2011. Coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice. |
| spellingShingle | agricultural wastes agronomic characters arabidopsis thaliana biochemical pathways biofuels biomass biosynthesis cellulose correlation analysis digestibility ethanol gene expression genes lignin renewable energy transcription factors Ambavaram, Madana M.R. Krishnan, Arjun Trijatmiko, Kurniawan R. Pereira, Andy Coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice |
| title | Coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice |
| title_full | Coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice |
| title_fullStr | Coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice |
| title_full_unstemmed | Coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice |
| title_short | Coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice |
| title_sort | coordinated activation of cellulose and repression of lignin biosynthesis pathways in rice |
| topic | agricultural wastes agronomic characters arabidopsis thaliana biochemical pathways biofuels biomass biosynthesis cellulose correlation analysis digestibility ethanol gene expression genes lignin renewable energy transcription factors |
| url | https://hdl.handle.net/10568/165969 |
| work_keys_str_mv | AT ambavarammadanamr coordinatedactivationofcelluloseandrepressionofligninbiosynthesispathwaysinrice AT krishnanarjun coordinatedactivationofcelluloseandrepressionofligninbiosynthesispathwaysinrice AT trijatmikokurniawanr coordinatedactivationofcelluloseandrepressionofligninbiosynthesispathwaysinrice AT pereiraandy coordinatedactivationofcelluloseandrepressionofligninbiosynthesispathwaysinrice |