Modulation of volatile compound metabolome and transcriptome in grape berries exposed to sunlight under dry-hot climate

doi:10.1186/s12870-020-2268-y

	Modulation of volatile compound metabolome and transcriptome in grape berries exposed to sunlight under dry-hot climate
	He, Lei ; Xu, Xiao-Qing ; Wang, Yu ; Chen, Wei-Kai ; Sun, Run-Ze ; Cheng, Guo ; Liu, Bin ; Chen, Wu 3; Duan, Chang-Qing ; Wang, Jun ; Pan, Qiu-Hong
	2020
发表期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
卷号	20 期号:1
摘要	Background Basal leaf removal is widely practiced to increase grape cluster sunlight exposure that controls berry rot and improves quality. Studies on its influence on volatile compounds in grape berries have been performed mostly in Mediterranean or marine climate regions. It is uncertain whether similar efficiency can be achieved when grape berries are grown under continental climate. This study aimed to dissect the variation in volatile compound production and transcriptome in sunlight-exposed grape berries in a dry-hot climate region and to propose the key genes related to the variation. Results Four cluster sunlight exposure strategies, including basal leaf removal at pepper-corn size stage, leaf removal at veraison (LR-V), leaf moving at veraison (LM-V), and half-leaf removal at veraison, were implemented at the north foot of the Mt. Tianshan region of northwestern China. Various cluster exposure treatments resulted in a decline in the concentrations of norisoprenoids and monoterpenes in ripening grape berries. Both beta-carotene and lutein, the substrates of norisoprenoid biosynthesis, were reduced by cluster sunlight exposure. K-means cluster analysis showed that some genes involved in biosynthesis such as VviTPS55, VviTPS60, VviTPS66, VviCCD4a and VviCCD4b exhibited lower expression levels in exposed berries at least at one of the tested stages. Two C6-derived esters with fruity attributes, ethyl hexanoate and hexyl acetate, were reduced markedly. In contrast, main C6 alcohol compound levels were elevated in the LR-V- and LM-V-treated grape berries, which corresponded to the up-regulated expression of VviLOXA, VviLOXO and VviADH1 in the oxylipin pathway. Most of the differentially expressed genes in the exposed and control berries were enriched to the stress response processes, and this transcriptome difference was accumulated as the berries matured. Besides, LR-V treatment stimulated a significant up-regulation in photosynthesis-related genes in the grape berries, which did not happen with LM-V treatment. Conclusions Cluster sunlight exposure in dry-hot climate viticulture resulted in different volatile-targeted transcriptomic and metabolic responses from those obtained in the temperate Mediterranean or marine climate region. Therefore, a modified canopy management should be adopted to improve the aroma of grape berries.
关键词	Leaf removal Leaf moving Half leaf removal Volatile profiles Grape berry
学科领域	Plant Sciences
DOI	10.1186/s12870-020-2268-y
收录类别	SCI
语种	英语
WOS关键词	VITIS-VINIFERA L. ; CABERNET-SAUVIGNON GRAPES ; ZONE LEAF REMOVAL ; FATTY-ACIDS ; WINE ; ANTHOCYANIN ; TEMPERATURE ; STRESS ; IMPACT ; MERLOT
WOS研究方向	Plant Sciences
WOS记录号	WOS:000513929100002
出版者	BMC
文献子类	Article
出版地	LONDON
资助机构	National Nature Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31471834] ; China Agriculture Research System [CARS-29] ; Major Science and Technology Project of Xinjiang Province [2017A01001-3]
作者邮箱	panqh@cau.edu.cn
作品OA属性	Green Published, gold
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/21906
专题	中科院北方资源植物重点实验室
作者单位	1.China Agr Univ, Coll Food Sci & Nutr Engn, Ctr Viticulture & Enol, Beijing 100083, Peoples R China 2.Minist Agr & Rural Affairs, Key Lab Viticulture & Enol, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China 4.CITIC Guoan Wine Co Ltd, Manas 832200, Xinjiang, Peoples R China
推荐引用方式 GB/T 7714	He, Lei,Xu, Xiao-Qing,Wang, Yu,et al. Modulation of volatile compound metabolome and transcriptome in grape berries exposed to sunlight under dry-hot climate[J]. BMC PLANT BIOLOGY,2020,20(1).
APA	He, Lei.,Xu, Xiao-Qing.,Wang, Yu.,Chen, Wei-Kai.,Sun, Run-Ze.,...&Pan, Qiu-Hong.(2020).Modulation of volatile compound metabolome and transcriptome in grape berries exposed to sunlight under dry-hot climate.BMC PLANT BIOLOGY,20(1).
MLA	He, Lei,et al."Modulation of volatile compound metabolome and transcriptome in grape berries exposed to sunlight under dry-hot climate".BMC PLANT BIOLOGY 20.1(2020).

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