气候变化领域集成服务门户(CCPortal): Physiological and Molecular Response of Liriodendron chinense to Varying Stand Density

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DOI	10.3390/plants13040508
	Physiological and Molecular Response of Liriodendron chinense to Varying Stand Density
	Chen, Jun; Li, Ting; Cai, Jinfeng; Yu, Pengfei; Guo, Ying
发表日期	2024
ISSN	2223-7747
起始页码	13
结束页码	4
卷号	13 期号:4
英文摘要	Stand density affects the potentially superior productivity of forest ecosystems directly by regulating the light and nutrient availability of trees. Understanding how stand density influences the growth and development of trees is crucial for supporting forest management in the context of climate change. We focused on Liriodendron chinense in experimental plantations created in 2003, with planting densities ranging from 277 to 10,000 trees per hectare at six plots. The leaf structure and photosynthetic capacity of L. chinense changed significantly under different stand densities, which had a negative impact on their biomass (leaf mass) and nutrient (total carbohydrate content) accumulation. Transcriptional differences were observed among samples from plots with different planting densities. The expression of 1784 genes was negatively dependent on stand density, participating mainly in the biological processes of circadian rhythm, carbon metabolism, and amino acid biosynthesis. Furthermore, we identified a photosynthesis-related module and constructed a gene regulatory network to discover that the transcription factors of MYB and bHLH may have important roles in the transcriptional regulation of photosynthesis biosynthesis by activating or repressing the expression of petA (Litul.15G096200), psbE (Litul.10G033900), and petD (Litul.17G061600) at different stand densities. Our study quantified the impact of stand density on tree growth at physiological and molecular levels. Our observations provide theoretical support for plantation establishment of L. chinense.
英文关键词	stand density; Liriodendron chinense; transcription factors; photosynthesis; regulatory mechanism
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001175205300001
来源期刊	PLANTS-BASEL
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/296470
作者单位	Nanjing Forestry University
推荐引用方式 GB/T 7714	Chen, Jun,Li, Ting,Cai, Jinfeng,et al. Physiological and Molecular Response of Liriodendron chinense to Varying Stand Density[J],2024,13(4).
APA	Chen, Jun,Li, Ting,Cai, Jinfeng,Yu, Pengfei,&Guo, Ying.(2024).Physiological and Molecular Response of Liriodendron chinense to Varying Stand Density.PLANTS-BASEL,13(4).
MLA	Chen, Jun,et al."Physiological and Molecular Response of Liriodendron chinense to Varying Stand Density".PLANTS-BASEL 13.4(2024).