Lignin synthesis, transcriptional regulation and potential for useful modification in plants.
Lignin synthesis, transcriptional regulation and potential for useful modification in plants.
复制标题
DOI：
10.1079/pavsnnr20116028
复制
发表时间：
2011-01-01
影响因子：
--
通讯作者：
Legay, S.
中科院分区：
文献类型：
--
作者：
Bedon, F.;Legay, S.
木质素是地球上第二丰富的植物聚合物，其生物学作用和有用改性的潜力一直引起人们的极大兴趣。在过去的几十年里，大量的研究极大地丰富了我们对木质素生物合成的了解。第一部分描述了木质素组成和合成的修订，重点介绍了与植物次生细胞壁 (SCW) 形成过程中发生的木质化过程有关的关键基因。基因组测序数据的可用性带来了有关木质素生物合成途径的不同基因家族的有用信息。通过序列同源性或特定转录谱分析技术的组合，可以利用这些数据来分离对 SCW 形成过程更特异的成员。这篇综述还总结了我们目前对木质素生物合成转录调控的认识，特别是 R2R3-MYB 和 NAC 转录因子 (TF) 家族。还讨论了用于生产第二代生物燃料的木质素改性策略。
Lignin, the second most abundant plant polymer on earth, has always been of great interest for research with regard to its biological roles and potential for useful modification. Over the last few decades, numerous studies have considerably enriched our knowledge of lignin biosynthesis. In the first part, a revision of lignin composition and synthesis is described, highlighting the key genes shown to be implicated in the lignification process occurring during secondary cell wall (SCW) formation in plants. Availability of genome sequencing data has brought about useful information concerning the different gene families of the lignin biosynthesis pathway. These data can be exploited to isolate the members that are more specific to the SCW formation process through combination of sequence homology or specific transcript-profiling techniques. This review also summarizes our current knowledge on the transcriptional regulation of lignin biosynthesis, particularly the R2R3-MYB and NAC transcription factor (TF) families. Strategies of lignin modification for the production of second-generation biofuels are also discussed.