干旱区生态环境知识资源中心(Arid): Giant cacti: isotopic recorders of climate variation in warm deserts of the Americas

Arid

DOI	10.1093/jxb/erz320
	Giant cacti: isotopic recorders of climate variation in warm deserts of the Americas
	Hultine, Kevin R.1; Dettman, David L.2,3; English, Nathan B.4; Williams, David G.5
通讯作者	Hultine, Kevin R.
来源期刊	JOURNAL OF EXPERIMENTAL BOTANY
ISSN	0022-0957
EISSN	1460-2431
出版年	2019
卷号	70 期号:22 页码:6509-6519
英文摘要	The plant family Cactaceae is considered among the most threatened groups of organisms on the planet. The threatened status of the cacti family has created a renewed interest in the highly evolved physiological and morphological traits that underpin their persistence in some of the harshest subtropical environments in the Americas. Among the most important anatomical features of cacti is the modification of leaves into spines, and previous work has shown that the stable isotope chemistry of cacti spines records potential variations in stem water balance, stress, and Crassulacean acid metabolism (CAM). We review the opportunities, challenges, and pitfalls in measuring delta C-13, delta H-2, and delta O-18 ratios captured in spine tissues that potentially reflect temporal and spatial patterns of stomatal conductance, internal to atmospheric CO2 partial pressures, and subsequent patterns of photosynthetic gas exchange. We then evaluate the challenges in stable isotope analysis in spine tissues related to variation in CAM expression, stem water compartmentalization, and spine whole-tissue composition among other factors. Finally, we describe how the analysis of all three isotopes can be used in combination to provide potentially robust analysis of photosynthetic function in cacti, and other succulent-stemmed taxa across broad spatio-temporal environmental gradients.
英文关键词	Acanthochronology Cactaceae CAM photosynthesis drought adaptation photosynthetic gas exchange plant water relations stable isotope ratios stress physiology stem succulents
类型	Review
语种	英语
国家	USA ; Japan ; Australia
收录类别	SCI-E
WOS记录号	WOS:000506809000003
WOS关键词	CRASSULACEAN-ACID-METABOLISM ; STABLE-ISOTOPES ; SAGUARO CACTUS ; CAM PLANT ; DISCRIMINATION ; CELLULOSE ; RATIOS ; WATER ; TREE ; FRACTIONATION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2019-11-15
来源机构	University of Arizona
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310858
作者单位	1.Desert Bot Garden, Dept Res Conservat & Collect, Phoenix, AZ 85008 USA; 2.Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA; 3.Shimane Univ, Estuary Res Ctr, Matsue, Shimane, Japan; 4.Cent Queensland Univ, Sch Hlth Med & Appl Sci, Townsville, Qld, Australia; 5.Univ Wyoming, Dept Bot, Laramie, WY 82071 USA
推荐引用方式 GB/T 7714	Hultine, Kevin R.,Dettman, David L.,English, Nathan B.,et al. Giant cacti: isotopic recorders of climate variation in warm deserts of the Americas[J]. University of Arizona,2019,70(22):6509-6519.
APA	Hultine, Kevin R.,Dettman, David L.,English, Nathan B.,&Williams, David G..(2019).Giant cacti: isotopic recorders of climate variation in warm deserts of the Americas.JOURNAL OF EXPERIMENTAL BOTANY,70(22),6509-6519.
MLA	Hultine, Kevin R.,et al."Giant cacti: isotopic recorders of climate variation in warm deserts of the Americas".JOURNAL OF EXPERIMENTAL BOTANY 70.22(2019):6509-6519.