The transcriptome of Populus in elevated CO2 reveals increased   anthocyanin biosynthesis during delayed autumnal senescence

doi:10.1111/j.1469-8137.2010.03184.x

CORC > 北京大学 > 生命科学学院

	The transcriptome of Populus in elevated CO2 reveals increased anthocyanin biosynthesis during delayed autumnal senescence
	Tallis, M. J. ; Lin, Y. ; Rogers, A. ; Zhang, J. ; Street, N. R. ; Miglietta, F. ; Karnosky, D. F. ; De Angelis, P. ; Calfapietra, C. ; Taylor, G.
刊名	new phytologist
	2010
关键词	anthocyanin biosynthesis autumnal senescence cDNA microarray elevated CO2 LDOX Populus SUCROSE-SPECIFIC INDUCTION DIOXIDE ENRICHMENT FACE LEAF SENESCENCE CARBON-DIOXIDE GENE-EXPRESSION POPLAR PLANTATION GROWTH CESSATION DOWN-REGULATION EUROPEAN ASPEN CLIMATE-CHANGE
DOI	10.1111/j.1469-8137.2010.03184.x
英文摘要	The delay in autumnal senescence that has occurred in recent decades has been linked to rising temperatures. Here, we suggest that increasing atmospheric CO2 may partly account for delayed autumnal senescence and for the first time, through transcriptome analysis, identify gene expression changes associated with this delay. Using a plantation of Populus x euramericana grown in elevated [CO2] (e[CO2]) with free-air CO2 enrichment (FACE) technology, we investigated the molecular and biochemical basis of this response. A Populus cDNA microarray was used to identify genes representing multiple biochemical pathways influenced by e[CO2] during senescence. Gene expression changes were confirmed through real-time quantitative PCR, and leaf biochemical assays. Pathways for secondary metabolism and glycolysis were significantly up-regulated by e[CO2] during senescence, in particular, those related to anthocyanin biosynthesis. Expressed sequence tags (ESTs) representing the two most significantly up-regulated transcripts in e[CO2], LDOX (leucoanthocyanidin dioxgenase) and DFR (dihydroflavonol reductase), gave (e[CO2]/ambient CO2 (a[CO2])) expression ratios of 39.6 and 19.3, respectively. We showed that in e[CO2] there was increased autumnal leaf sugar accumulation and up-regulation of genes determining anthocyanin biosynthesis which, we propose, prolongs leaf longevity during natural autumnal senescence.; Plant Sciences; SCI(E); 25; ARTICLE; 2; 415-428; 186
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/244891]
专题	生命科学学院
推荐引用方式 GB/T 7714	Tallis, M. J.,Lin, Y.,Rogers, A.,et al. The transcriptome of Populus in elevated CO2 reveals increased anthocyanin biosynthesis during delayed autumnal senescence[J]. new phytologist,2010.
APA	Tallis, M. J..,Lin, Y..,Rogers, A..,Zhang, J..,Street, N. R..,...&Taylor, G..(2010).The transcriptome of Populus in elevated CO2 reveals increased anthocyanin biosynthesis during delayed autumnal senescence.new phytologist.
MLA	Tallis, M. J.,et al."The transcriptome of Populus in elevated CO2 reveals increased anthocyanin biosynthesis during delayed autumnal senescence".new phytologist (2010).