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| Li,Xiaoyu; Chen,Wenjuan; Zhao,Yang; Xiang,Yan; Jiang,Haiyang; Zhu,Suwen; Cheng,Beijiu. |
| Lignin is a major cell wall component of vascular plants that provides mechanical strength and hydrophobicity to vascular vessels. However, the presence of lignin limits the effective use of crop straw in many agroindustrial processes. Here, we generated transgenic maize plants in which the expression of a lignin biosynthetic gene encoding CCoAOMT , a key enzyme involved in the lignin biosynthesis pathway was downregulated by RNA interference (RNAi). RNAi of CCoAOMT led to significantly downregulated expression of this gene in transgenic maize compared with WT plants. These transgenic plants exhibited a 22.4% decrease in Klason lignin content and a 23.3% increase in cellulose content compared with WT plants, which may reflect compensatory regulation of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: CCoAOMT; Lignin biosynthesis; Lignin and cellulose content; Maize. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000400013 |
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| Cheng,Xiao; Jiang,Haiyang; Zhao,Yang; Qian,Yexiong; Zhu,Suwen; Cheng,Beijiu. |
| A large set of candidate nucleotide-binding site (NBS)-encoding genes related to disease resistance was identified in the sorghum (Sorghum bicolor) genome. These resistance (R) genes were characterized based on their structural diversity, physical chromosomal location and phylogenetic relationships. Based on their N-terminal motifs and leucine-rich repeats (LRR), 50 non-regular NBS genes and 224 regular NBS genes were identified in 274 candidate NBS genes. The regular NBS genes were classified into ten types: CNL, CN, CNLX, CNX, CNXL, CXN, NX, N, NL and NLX. The vast majority (97%) of NBS genes occurred in gene clusters, indicating extensive gene duplication in the evolution of S. bicolor NBS genes. Analysis of the S. bicolor NBS phylogenetic tree revealed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioinformatics; Disease resistance gene; Nucleotide binding site; Sorghum bicolor. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000200016 |
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