干旱区生态环境知识资源中心(Arid): Temporal shifts in iso/anisohydry revealed from daily observations of plant water potential in a dominant desert shrub

Arid

DOI	10.1111/nph.16196
	Temporal shifts in iso/anisohydry revealed from daily observations of plant water potential in a dominant desert shrub
	Guo, Jessica S.1,2,6; Hultine, Kevin R.3; Koch, George W.1,2; Kropp, Heather 4; Ogle, Kiona 1,2,5
通讯作者	Guo, Jessica S.
来源期刊	NEW PHYTOLOGIST
ISSN	0028-646X
EISSN	1469-8137
出版年	2020
卷号	225 期号:2 页码:713-726
英文摘要	Plant species are characterized along a spectrum of isohydry to anisohydry depending on their regulation of water potential (psi), but the plasticity of hydraulic strategies is largely unknown. The role of environmental drivers was evaluated in the hydraulic behavior of Larrea tridentata, a drought-tolerant desert shrub that withstands a wide range of environmental conditions. With a 1.5 yr time-series of 2324 in situ measurements of daily predawn and midday psi, the temporal variability of hydraulic behavior was explored in relation to soil water supply, atmospheric demand and temperature. Hydraulic behavior in Larrea was highly dynamic, ranging from partial isohydry to extreme anisohydry. Larrea exhibited extreme anisohydry under wet soil conditions corresponding to periods of high productivity, whereas partial isohydry was exhibited after prolonged dry or cold conditions, when productivity was low. Environmental conditions can strongly influence plant hydraulic behavior at relatively fast timescales, which enhances our understanding of plant drought responses. Although species may exhibit a dominant hydraulic behavior, variable environmental conditions can prompt plasticity in psi regulation, particularly for species in seasonally dry climates.
英文关键词	anisohydry drought response hydraulic behavior isohydry Larrea tridentata (creosotebush) xylem water potential
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000492817500001
WOS关键词	INDUCED XYLEM CAVITATION ; NET PRIMARY PRODUCTION ; LARREA-TRIDENTATA ; STOMATAL CONTROL ; WOODY-PLANTS ; CHIHUAHUAN DESERT ; HYDRAULIC FAILURE ; SOIL-MOISTURE ; DROUGHT ; PHOTOSYNTHESIS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2019-10-28
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310361
作者单位	1.No Arizona Univ, Dept Biol Sci, Box 5640, Flagstaff, AZ 86011 USA; 2.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA; 3.Desert Bot Garden, Dept Res Conservat & Collect, Phoenix, AZ 85008 USA; 4.Colgate Univ, Dept Geog, Hamilton, NY 13346 USA; 5.No Arizona Univ, Sch Informat Comp & Cyber Syst, Flagstaff, AZ 86011 USA; 6.Univ Utah, Geol & Geophys, 115 S 1460 E 383, Salt Lake City, UT 84112 USA
推荐引用方式 GB/T 7714	Guo, Jessica S.,Hultine, Kevin R.,Koch, George W.,et al. Temporal shifts in iso/anisohydry revealed from daily observations of plant water potential in a dominant desert shrub[J],2020,225(2):713-726.
APA	Guo, Jessica S.,Hultine, Kevin R.,Koch, George W.,Kropp, Heather,&Ogle, Kiona.(2020).Temporal shifts in iso/anisohydry revealed from daily observations of plant water potential in a dominant desert shrub.NEW PHYTOLOGIST,225(2),713-726.
MLA	Guo, Jessica S.,et al."Temporal shifts in iso/anisohydry revealed from daily observations of plant water potential in a dominant desert shrub".NEW PHYTOLOGIST 225.2(2020):713-726.