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本文在法国和英国两个地区对改变了木质素的转基因杨树的生长性和制浆性能进行了长期生长试验研究。表达肉桂酰乙醇脱氢酶或咖啡酶/5-脱氢-O-甲基转移酶(COMT)反义转基因杨树在两个地方生长了4年。在整个试验期,树木生长健康。树木的生长指标和与昆虫的交互作用正常。在转基因树下的土壤中的微生物群落没有变化。预期的木质素改性保持超过四年。树干的化学制浆性能表明还原的肉桂酰乙醇脱氢酶已经改善了木材性能,更易脱木素,化学品消耗减少,可产出更多优质纸浆。在不影响树木生长和适应性的前提下,该工作对促进开发更加环保的优良造纸用木材具有重要意义。
In this study, long-term growth experiments were carried out on the growth and pulping properties of transgenic poplar with altered lignin in both France and England. Antisense transgenic poplars expressing cinnamyl alcohol dehydrogenase or caffeinase / 5-dehydro-O-methyltransferase (COMT) grew in two places for 4 years. Throughout the test period, the trees grew well. Tree growth indicators and interactions with insects normal. There was no change in the microbial community in the soil under the transgenic tree. The expected lignin modification is maintained for more than four years. The chemical pulping performance of the trunk indicates that reduced cinnamyl alcohol dehydrogenase has improved wood properties, is more delignified, reduces chemical consumption, and produces more premium pulp. Without prejudice to the growth and adaptability of trees, this work is of great importance for promoting the development of more environmentally friendly and excellent paper-making timber.