Pulping performance of transgenic poplar with depressed Caffeoyl-CoA O-methyltransferase

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2008,（22）
• 页码范围: 3553-3558
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/s11434-008-0477-0

摘要

This paper evaluated pulping performance of 3-year-old field-grown transgenic poplar (Populus tremula × Populus alba). The transgenic poplar with anti-sense CCoAOMT had an about 13% decreased lignin content, in which a slight increment was found in S/G ratio. Chemical analysis showed that the trans-genic poplar had significantly less benezene-ethanol extractive than that of control wood, but no sig-nificant differences were found in contents of ash, cold water extractive, hot water extractive, 1% NaOH extractive, holocellulose, pentosans and cellulose. Fiber assay demonstrated that down-regulation of CCoAOMTexpression improved the fiber quality in transgenic poplar. Kraft pulping showed that lower lignin in transgenic poplar led to remarkable improved pulp quality and increased pulp yield.