Lignin: Characterization of a Multifaceted Crop Component
Lignin is a plant component with important implications for various agricultural disciplines. It confers rigidity to cell walls, and is therefore associated with tolerance to abiotic and biotic stresses and the mechanical stability of plants. In animal nutrition, lignin is considered an antinutritiv...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/436517 |
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| author | Michael Frei |
| author_facet | Michael Frei |
| author_sort | Michael Frei |
| collection | DOAJ |
| description | Lignin is a plant component with important implications for various agricultural disciplines. It confers rigidity to cell walls, and is therefore associated with tolerance to abiotic and biotic stresses and the mechanical stability of plants. In animal nutrition, lignin is considered an antinutritive component of forages as it cannot be readily fermented by rumen microbes. In terms of energy yield from biomass, the role of lignin depends on the conversion process. It contains more gross energy than other cell wall components and therefore confers enhanced heat value in thermochemical processes such as direct combustion. Conversely, it negatively affects biological energy conversion processes such as bioethanol or biogas production, as it inhibits microbial fermentation of the cell wall. Lignin from crop residues plays an important role in the soil organic carbon cycling, as it constitutes a recalcitrant carbon pool affecting nutrient mineralization and carbon sequestration. Due to the significance of lignin in several agricultural disciplines, the modification of lignin content and composition by breeding is becoming increasingly important. Both mapping of quantitative trait loci and transgenic approaches have been adopted to modify lignin in crops. However, breeding goals must be defined considering the conflicting role of lignin in different agricultural disciplines. |
| format | Article |
| id | doaj-art-f28435e6ee3a4da3941fded4d352e6d4 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-f28435e6ee3a4da3941fded4d352e6d42025-02-03T01:12:23ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/436517436517Lignin: Characterization of a Multifaceted Crop ComponentMichael Frei0Division of Abiotic Stress Tolerance in Crops, Institute of Crop Science and Resource Conservation (INRES), University of Bonn, Karlrobert-Kreiten Straße 13, 53115 Bonn, GermanyLignin is a plant component with important implications for various agricultural disciplines. It confers rigidity to cell walls, and is therefore associated with tolerance to abiotic and biotic stresses and the mechanical stability of plants. In animal nutrition, lignin is considered an antinutritive component of forages as it cannot be readily fermented by rumen microbes. In terms of energy yield from biomass, the role of lignin depends on the conversion process. It contains more gross energy than other cell wall components and therefore confers enhanced heat value in thermochemical processes such as direct combustion. Conversely, it negatively affects biological energy conversion processes such as bioethanol or biogas production, as it inhibits microbial fermentation of the cell wall. Lignin from crop residues plays an important role in the soil organic carbon cycling, as it constitutes a recalcitrant carbon pool affecting nutrient mineralization and carbon sequestration. Due to the significance of lignin in several agricultural disciplines, the modification of lignin content and composition by breeding is becoming increasingly important. Both mapping of quantitative trait loci and transgenic approaches have been adopted to modify lignin in crops. However, breeding goals must be defined considering the conflicting role of lignin in different agricultural disciplines.http://dx.doi.org/10.1155/2013/436517 |
| spellingShingle | Michael Frei Lignin: Characterization of a Multifaceted Crop Component The Scientific World Journal |
| title | Lignin: Characterization of a Multifaceted Crop Component |
| title_full | Lignin: Characterization of a Multifaceted Crop Component |
| title_fullStr | Lignin: Characterization of a Multifaceted Crop Component |
| title_full_unstemmed | Lignin: Characterization of a Multifaceted Crop Component |
| title_short | Lignin: Characterization of a Multifaceted Crop Component |
| title_sort | lignin characterization of a multifaceted crop component |
| url | http://dx.doi.org/10.1155/2013/436517 |
| work_keys_str_mv | AT michaelfrei lignincharacterizationofamultifacetedcropcomponent |