干旱区生态环境知识资源中心(Arid): Mismatch between primary and secondary growth and its consequences on wood formation in Qinghai spruce

Arid

DOI	10.1093/treephys/tpad097
	Mismatch between primary and secondary growth and its consequences on wood formation in Qinghai spruce
	Yu, Biyun; Rossi, Sergio; Su, Hongxin; Zhao, Ping; Zhang, Shaokang; Hu, Baoqing; Li, Xuebin; Chen, Lin; Liang, Hanxue; Huang, Jian-Guo
通讯作者	Li, XB
来源期刊	TREE PHYSIOLOGY
ISSN	0829-318X
EISSN	1758-4469
出版年	2023
卷号	43 期号:11 页码:1886-1902
英文摘要	The connections between the primary and secondary growth of trees allows better understanding of the dynamics of carbon sequestration in forest ecosystems. The relationship between primary and secondary growth of trees could change due to the diverging responses of meristems to climate warming. In this study, the bud phenology and radial growth dynamics of Qinghai spruce (Picea crassifolia) in arid and semi-arid areas of China in 2019 and 2020 were weekly monitored to analyze their response to different weather conditions and their links with carbon sink. Xylem anatomical traits (i.e. lumen radial diameter and cell wall thickness) were quantified along cell radial files after the end of xylem lignification to calculate the early-to-latewood transition date. Winter and early spring (January-March) were warmer in 2020 with a colder April compared with 2019. Precipitation in April-June was lower in 2020 than in 2019. In 2019, bud phenology occurred earlier, while the onset of xylem formation and the early-to-latewood transition date were delayed. The duration from the beginning of split bud and exposed shoot to the early-to-latewood transition date was positively correlated with the radial width of earlywood (accounting for similar to 80% of xylem width) and total xylem width. The longer duration of xylem cell division did not increase xylem cell production and radial width. Moreover, the duration from bud burst to the early-to-latewood transition date in 2020 was negatively linked with early phloem cell production as compared with 2019. Our findings suggest that warm conditions in winter and early spring promote the xylogenesis of Qinghai spruce, but might delay bud burst. However, the xylem width increments largely depend on the duration from bud burst to the start of latewood cell division rather than on the earlier xylogenesis and longer duration of xylem cell differentiation induced by warm conditions.
英文关键词	anatomical traits bud phenology phloem formation Picea crassifolia xylem formation
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:001067831300001
WOS关键词	LOCALLY HEATED STEMS ; CAMBIAL ACTIVITY ; CLIMATE-CHANGE ; FAGUS-SYLVATICA ; NORWAY SPRUCE ; VASCULAR DIFFERENTIATION ; CARBOHYDRATE RESERVES ; SEASONAL DYNAMICS ; DECIDUOUS FOREST ; PHLOEM FORMATION
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398924
推荐引用方式 GB/T 7714	Yu, Biyun,Rossi, Sergio,Su, Hongxin,et al. Mismatch between primary and secondary growth and its consequences on wood formation in Qinghai spruce[J],2023,43(11):1886-1902.
APA	Yu, Biyun.,Rossi, Sergio.,Su, Hongxin.,Zhao, Ping.,Zhang, Shaokang.,...&Huang, Jian-Guo.(2023).Mismatch between primary and secondary growth and its consequences on wood formation in Qinghai spruce.TREE PHYSIOLOGY,43(11),1886-1902.
MLA	Yu, Biyun,et al."Mismatch between primary and secondary growth and its consequences on wood formation in Qinghai spruce".TREE PHYSIOLOGY 43.11(2023):1886-1902.