气候变化领域集成服务门户(CCPortal): Response mechanism of carbon metabolism of Pinus massoniana to gradient high temperature and drought stress

CCPortal

DOI	10.1186/s12864-024-10054-2
	Response mechanism of carbon metabolism of Pinus massoniana to gradient high temperature and drought stress
	Li, Liangliang; Li, Yan; Ding, Guijie
发表日期	2024
ISSN	1471-2164
起始页码	25
结束页码	1
卷号	25 期号:1
英文摘要	Background The carbon metabolism pathway is of paramount importance for the growth and development of plants, exerting a pivotal regulatory role in stress responses. The exacerbation of drought impacts on the plant carbon cycle due to global warming necessitates comprehensive investigation into the response mechanisms of Masson Pine (Pinus massoniana Lamb.), an exemplary pioneer drought-tolerant tree, thereby establishing a foundation for predicting future forest ecosystem responses to climate change. Results The seedlings of Masson Pine were utilized as experimental materials in this study, and the transcriptome, metabolome, and photosynthesis were assessed under varying temperatures and drought intensities. The findings demonstrated that the impact of high temperature and drought on the photosynthetic rate and transpiration rate of Masson Pine seedlings was more pronounced compared to individual stressors. The analysis of transcriptome data revealed that the carbon metabolic pathways of Masson Pine seedlings were significantly influenced by high temperature and drought co-stress, with a particular impact on genes involved in starch and sucrose metabolism. The metabolome analysis revealed that only trehalose and Galactose 1-phosphate were specifically associated with the starch and sucrose metabolic pathways. Furthermore, the trehalose metabolic heat map was constructed by integrating metabolome and transcriptome data, revealing a significant increase in trehalose levels across all three comparison groups. Additionally, the PmTPS1, PmTPS5, and PmTPPD genes were identified as key regulatory genes governing trehalose accumulation. Conclusions The combined effects of high temperature and drought on photosynthetic rate, transpiration rate, transcriptome, and metabolome were more pronounced than those induced by either high temperature or drought alone. Starch and sucrose metabolism emerged as the pivotal carbon metabolic pathways in response to high temperature and drought stress in Masson pine. Trehalose along with PmTPS1, PmTPS5, and PmTPPD genes played crucial roles as metabolites and key regulators within the starch and sucrose metabolism.
英文关键词	Pinus massoniana; High-temperature drought; Carbon metabolism; Trehalose
语种	英语
WOS研究方向	Biotechnology & Applied Microbiology ; Genetics & Heredity
WOS类目	Biotechnology & Applied Microbiology ; Genetics & Heredity
WOS记录号	WOS:001161483900001
来源期刊	BMC GENOMICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303276
作者单位	Guizhou University
推荐引用方式 GB/T 7714	Li, Liangliang,Li, Yan,Ding, Guijie. Response mechanism of carbon metabolism of Pinus massoniana to gradient high temperature and drought stress[J],2024,25(1).
APA	Li, Liangliang,Li, Yan,&Ding, Guijie.(2024).Response mechanism of carbon metabolism of Pinus massoniana to gradient high temperature and drought stress.BMC GENOMICS,25(1).
MLA	Li, Liangliang,et al."Response mechanism of carbon metabolism of Pinus massoniana to gradient high temperature and drought stress".BMC GENOMICS 25.1(2024).