Brown midrib sorghum for second-generation ethanol production. Abstract
Sorghum[Sorghum bicolor (L.) Moench] stover can provide an abundant alternative source of fermentable sugars through enzymatic hydrolysis (Vermerris et al., 2007). While production of cellulosic ethanol from stover is feasible from an energy-balance perspective, its production is currently not econo...
| Autores principales: | , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2008
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/28883 |
| _version_ | 1855529668927553536 |
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| author | Reddy, B.V.S. Kumar, A.A. Rao, P.S. Reddy, P.S. Blümmel, Michael |
| author_browse | Blümmel, Michael Kumar, A.A. Rao, P.S. Reddy, B.V.S. Reddy, P.S. |
| author_facet | Reddy, B.V.S. Kumar, A.A. Rao, P.S. Reddy, P.S. Blümmel, Michael |
| author_sort | Reddy, B.V.S. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Sorghum[Sorghum bicolor (L.) Moench] stover can provide an abundant alternative source of fermentable sugars through enzymatic hydrolysis (Vermerris et al., 2007). While production of cellulosic ethanol from stover is feasible from an energy-balance perspective, its production is currently not economically viable. Improvements in bio-processing, technologies coupled with development of high biomass yielding genotypes with low lignin content make ethanol production cost effective. The brown midrib (bmr) mutant sorghum lines have significantly lower levels of lignin content (51% less in stems and 25% less in leaves (Porter et al., 1978). Therefore, the use of bmr cultivars would reduce the cost of biomass-based ethanol production by reducing pre-processing costs. ICRISAT has developed 11 female parents (A-/B- lines) and 22 pollen parents (R-lines) using bmr 1, bmr 3 and bmr 7 sources for development of high biomass bmr sorghum hybrids (Reddy et al., 2008). Preliminary evaluation of bmr hybrid parents (4 R-lines) derived from bmr 1 source (IS 21887) indicated 20% lower lignin content on whole plant basis compared to source (4.24%). Further, two brown midrib sources bmr 6 (reduced activity of cinnamyl alcohol dehydrogenase) and bmr 12 (reduced activity of caffeic acid O-methyl transferase) are under use in breeding program for bmr introgression. With several bmr mutant sources available in gene bank, ICRISAT has a comparative advantage to develop high biomassyielding bmr sorghum hybrids for enhancing ethanol production from stover. |
| format | Journal Article |
| id | CGSpace28883 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| record_format | dspace |
| spelling | CGSpace288832016-05-30T17:46:47Z Brown midrib sorghum for second-generation ethanol production. Abstract Reddy, B.V.S. Kumar, A.A. Rao, P.S. Reddy, P.S. Blümmel, Michael sorghum bicolor biofuels [bioenergy] fermented products sugar fuel crops bioenergy crop residues biotechnology breeding methods mutants ethanol Sorghum[Sorghum bicolor (L.) Moench] stover can provide an abundant alternative source of fermentable sugars through enzymatic hydrolysis (Vermerris et al., 2007). While production of cellulosic ethanol from stover is feasible from an energy-balance perspective, its production is currently not economically viable. Improvements in bio-processing, technologies coupled with development of high biomass yielding genotypes with low lignin content make ethanol production cost effective. The brown midrib (bmr) mutant sorghum lines have significantly lower levels of lignin content (51% less in stems and 25% less in leaves (Porter et al., 1978). Therefore, the use of bmr cultivars would reduce the cost of biomass-based ethanol production by reducing pre-processing costs. ICRISAT has developed 11 female parents (A-/B- lines) and 22 pollen parents (R-lines) using bmr 1, bmr 3 and bmr 7 sources for development of high biomass bmr sorghum hybrids (Reddy et al., 2008). Preliminary evaluation of bmr hybrid parents (4 R-lines) derived from bmr 1 source (IS 21887) indicated 20% lower lignin content on whole plant basis compared to source (4.24%). Further, two brown midrib sources bmr 6 (reduced activity of cinnamyl alcohol dehydrogenase) and bmr 12 (reduced activity of caffeic acid O-methyl transferase) are under use in breeding program for bmr introgression. With several bmr mutant sources available in gene bank, ICRISAT has a comparative advantage to develop high biomassyielding bmr sorghum hybrids for enhancing ethanol production from stover. 2008 2013-05-06T07:01:39Z 2013-05-06T07:01:39Z Journal Article https://hdl.handle.net/10568/28883 en Limited Access Journal of Biotechnology;136(Suppl 1): S213 |
| spellingShingle | sorghum bicolor biofuels [bioenergy] fermented products sugar fuel crops bioenergy crop residues biotechnology breeding methods mutants ethanol Reddy, B.V.S. Kumar, A.A. Rao, P.S. Reddy, P.S. Blümmel, Michael Brown midrib sorghum for second-generation ethanol production. Abstract |
| title | Brown midrib sorghum for second-generation ethanol production. Abstract |
| title_full | Brown midrib sorghum for second-generation ethanol production. Abstract |
| title_fullStr | Brown midrib sorghum for second-generation ethanol production. Abstract |
| title_full_unstemmed | Brown midrib sorghum for second-generation ethanol production. Abstract |
| title_short | Brown midrib sorghum for second-generation ethanol production. Abstract |
| title_sort | brown midrib sorghum for second generation ethanol production abstract |
| topic | sorghum bicolor biofuels [bioenergy] fermented products sugar fuel crops bioenergy crop residues biotechnology breeding methods mutants ethanol |
| url | https://hdl.handle.net/10568/28883 |
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