干旱区生态环境知识资源中心(Arid): High water use in desert plants exposed to extreme heat

Arid

DOI	10.1111/ele.13516
	High water use in desert plants exposed to extreme heat
	Aparecido, Luiza M. T.1; Woo, Sabrina 1; Suazo, Crystal 1; Hultine, Kevin R.2; Blonder, Benjamin 1,3,4
通讯作者	Aparecido, Luiza M. T.
来源期刊	ECOLOGY LETTERS
ISSN	1461-023X
EISSN	1461-0248
出版年	2020
卷号	23 期号:8 页码:1189-1200
英文摘要	Many plant water use models predict leaves maximize carbon assimilation while minimizing water loss via transpiration. Alternate scenarios may occur at high temperature, including heat avoidance, where leaves increase water loss to evaporatively cool regardless of carbon uptake; or heat failure, where leaves non-adaptively lose water also regardless of carbon uptake. We hypothesized that these alternative scenarios are common in species exposed to hot environments, with heat avoidance more common in species with high construction cost leaves. Diurnal measurements of leaf temperature and gas exchange for 11 Sonoran Desert species revealed that 37% of these species increased transpiration in the absence of increased carbon uptake. High leaf mass per area partially predicted this behaviour (r(2) = 0.39). These data are consistent with heat avoidance and heat failure, but failure is less likely given the ecological dominance of the focal species. These behaviours are not yet captured in any extant plant water use model.
英文关键词	Cowan-Farquhar functional trait heat waves Sonoran desert stomatal regulation thermal stress transpiration water use efficiency
类型	Article
语种	英语
国家	USA ; England
收录类别	SCI-E
WOS记录号	WOS:000534307700001
WOS关键词	CRASSULACEAN ACID METABOLISM ; STOMATAL CONDUCTANCE ; LEAF TEMPERATURE ; INTERNAL PRESSURIZATION ; MODEL PREDICTIONS ; USE EFFICIENCY ; ELEVATED CO2 ; PINUS-TAEDA ; PHOTOSYNTHESIS ; RESPONSES
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	Arizona State University ; University of California, Berkeley ; University of Oxford
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/319158
作者单位	1.Arizona State Univ, Sch Life Sci, 427 E Tyler Mall, Tempe, AZ 85821 USA; 2.Desert Bot Garden, Dept Res Conservat & Collect, 1201 N Galvin Pkwy, Phoenix, AZ 85008 USA; 3.Univ Oxford, Environm Change Inst, Sch Geog & Environm, South Parks Rd, Oxford OX1 3QY, England; 4.Univ Calif Berkeley, Dept Environm Sci Policy & Management, Berkeley, CA 94720 USA
推荐引用方式 GB/T 7714	Aparecido, Luiza M. T.,Woo, Sabrina,Suazo, Crystal,et al. High water use in desert plants exposed to extreme heat[J]. Arizona State University, University of California, Berkeley, University of Oxford,2020,23(8):1189-1200.
APA	Aparecido, Luiza M. T.,Woo, Sabrina,Suazo, Crystal,Hultine, Kevin R.,&Blonder, Benjamin.(2020).High water use in desert plants exposed to extreme heat.ECOLOGY LETTERS,23(8),1189-1200.
MLA	Aparecido, Luiza M. T.,et al."High water use in desert plants exposed to extreme heat".ECOLOGY LETTERS 23.8(2020):1189-1200.