气候变化领域集成服务门户(CCPortal): The onset of xylogenesis is not related to distance from the crown in Smith fir trees from the southeastern Tibetan Plateau

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DOI	10.1139/cjfr-2016-0092
	The onset of xylogenesis is not related to distance from the crown in Smith fir trees from the southeastern Tibetan Plateau
	Li, Xiaoxia; Camarero, J. Julio; Case, Bradley; Liang, Eryuan; Rossi, Sergio
通讯作者	Liang, EY (通讯作者)
发表日期	2016
ISSN	0045-5067
EISSN	1208-6037
起始页码	885
结束页码	889
卷号	46 期号:6
英文摘要	Young and mature trees are usually characterized by asynchronous growth resumption of xylem. Here, we test the hypothesis that the later onset of xylem growth in older trees is related to the longer distance of the stem from the developing buds, which represents the main source of hormones triggering vascular tissue differentiation. We compared the onset of xylogenesis at different heights along the stems of young and mature Smith fir (Abies georgei var. smithii (Viguie & Gaussen) W. C. Cheng & L. K. Fu)) trees in the Sygera Mountains, southeastern Tibetan Plateau. Xylem formation was monitored weekly in 2012 on anatomical sections of wood microcores. The onset of xylogenesis differed between young and mature trees, with most phases occurring 2 weeks later in mature trees. No effect of the sampling height was observed on the growth resumption. Our results suggest that the later resumption of xylogenesis in older conifer trees is not related to their longer distance from the crown.
关键词	CAMBIAL ACTIVITY WOOD FORMATION VASCULAR CAMBIUM PINUS-SYLVESTRIS SILVER-FIR DIFFERENTIATION PHENOLOGY CONIFERS STEM PHYSIOLOGY
英文关键词	cambium; xylem formation; xylogenesis; southeastern Tibetan Plateau; Abies georgei var. smithii
语种	英语
WOS研究方向	Forestry
WOS类目	Forestry
WOS记录号	WOS:000376887200014
来源期刊	CANADIAN JOURNAL OF FOREST RESEARCH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258827
推荐引用方式 GB/T 7714	Li, Xiaoxia,Camarero, J. Julio,Case, Bradley,et al. The onset of xylogenesis is not related to distance from the crown in Smith fir trees from the southeastern Tibetan Plateau[J]. 中国科学院青藏高原研究所,2016,46(6).
APA	Li, Xiaoxia,Camarero, J. Julio,Case, Bradley,Liang, Eryuan,&Rossi, Sergio.(2016).The onset of xylogenesis is not related to distance from the crown in Smith fir trees from the southeastern Tibetan Plateau.CANADIAN JOURNAL OF FOREST RESEARCH,46(6).
MLA	Li, Xiaoxia,et al."The onset of xylogenesis is not related to distance from the crown in Smith fir trees from the southeastern Tibetan Plateau".CANADIAN JOURNAL OF FOREST RESEARCH 46.6(2016).