Cavitation resistance of peduncle, petiole and stem is correlated with bordered pit dimensions in Magnolia grandiflora

doi:10.1016/j.pld.2020.11.007

KIB OpenIR

	Cavitation resistance of peduncle, petiole and stem is correlated with bordered pit dimensions in Magnolia grandiflora
	Zhang,Feng-Ping ; Zhang,Jiao-Lin ; Brodribb,Timothy J.; Hu,Hong
	2021
发表期刊	PLANT DIVERSITY
ISSN	2096-2703
卷号	43 期号:4 页码:324-330
摘要	Variation in resistance of xylem to embolism among flowers, leaves, and stems strongly influences the survival and reproduction of plants. However, little is known about the vulnerability to xylem embolism under drought stress and their relationships to the anatomical traits of pits among reproductive and vegetative organs. In this study, we investigated the variation in xylem vulnerability to embolism in peduncles, petioles, and stems in a woody plant, Magnolia grandiflora. We analyzed the relationships between water potentials that induced 50% embolism (P-50) in peduncles, petioles, and stems and the conduit pit traits hypothesized to influence cavitation resistance. We found that peduncles were more vulnerable to cavitation than petioles and stems, supporting the hypothesis of hydraulic vulnerability segmentation that leaves and stems are prioritized over flowers during drought stress. Moreover, P-50 was significantly correlated with variation in the dimensions of inter-vessel pit apertures among peduncles, petioles and stems. These findings highlight that measuring xylem vulnerability to embolism in reproductive organs is essential for understanding the effect of drought on plant reproductive success and mortality under drought stress. Copyright (C) 2020 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co., Ltd.
关键词	Drought Flower Pit traits Xylem embolism Magnolia HYDRAULIC ARCHITECTURE XYLEM FUNCTION WATER VULNERABILITY EMBOLISM DROUGHT FAILURE RECOVERY REVEALS FORESTS
DOI	10.1016/j.pld.2020.11.007
WOS记录号	WOS:000687818400009
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/73079
专题	中国科学院昆明植物研究所
作者单位	1.[Zhang, Feng-Ping 2.Chinese Acad Sci, CAS Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Mengla 666303, Yunnan, Peoples R China 3.Yunnan Univ Chinese Med, Coll Tradit Chinese Med, Yunnan Key Lab Dai & Yi Med, Kunming 650500, Yunnan, Peoples R China 4.Chinese Acad Sci, Kunming Inst Bot, Key Lab Econ Plants & Biotechnol, Yunnan Key Lab Wild Plant Resources, Kunming 650201, Yunnan, Peoples R China 5.[Brodribb, Timothy J.] Univ Tasmania, Sch Nat Sci, Private Bag 55, Hobart, Tas 7001, Australia
推荐引用方式 GB/T 7714	Zhang,Feng-Ping,Zhang,Jiao-Lin,Brodribb,Timothy J.,et al. Cavitation resistance of peduncle, petiole and stem is correlated with bordered pit dimensions in Magnolia grandiflora[J]. PLANT DIVERSITY,2021,43(4):324-330.
APA	Zhang,Feng-Ping,Zhang,Jiao-Lin,Brodribb,Timothy J.,&Hu,Hong.(2021).Cavitation resistance of peduncle, petiole and stem is correlated with bordered pit dimensions in Magnolia grandiflora.PLANT DIVERSITY,43(4),324-330.
MLA	Zhang,Feng-Ping,et al."Cavitation resistance of peduncle, petiole and stem is correlated with bordered pit dimensions in Magnolia grandiflora".PLANT DIVERSITY 43.4(2021):324-330.