干旱区生态环境知识资源中心(Arid): Effects of temperature on the cuticular transpiration barrier of two desert plants with water-spender and water-saver strategies

Arid

DOI	10.1093/jxb/erz018
	Effects of temperature on the cuticular transpiration barrier of two desert plants with water-spender and water-saver strategies
	Bueno, Amauri 1; Alfarhan, Ahmed 2; Arand, Katja 1; Burghardt, Markus 1; Deininger, Ann-Christin 1; Hedrich, Rainer 3; Leide, Jana 1; Seufert, Pascal 1; Staiger, Simona 1; Riederer, Markus 1
通讯作者	Riederer, Markus
来源期刊	JOURNAL OF EXPERIMENTAL BOTANY
ISSN	0022-0957
EISSN	1460-2431
出版年	2019
卷号	70 期号:5 页码:1613-1625
英文摘要	Water-saver and water-spender strategies are successful adaptations allowing plants to cope with the limitations of hot desert habitats. We investigated whether the efficacy of the cuticular transpiration barrier and its susceptibility to high temperatures are ecophysiological traits differentially developed in the water-spender Citrullus colocynthis and the water-saver Phoenix dactylifera. Minimum leaf conductance (g(min)) at 25 degrees C was six times lower in P. dactylifera (1.1x10(-5) m s(-1)) than in C. colocynthis (6.9x10(-5) m s(-1)). Additionally, g(min) in the range 25-50 degrees C did not change in P. dactylifera but increased by a factor of 3.2 in C. colocynthis. Arrhenius formalism applied to the C. colocynthis g(min) led to a biphasic graph with a steep increase at temperatures 35 degrees C, whereas for P. dactylifera the graph was linear over all temperatures. Leaf cuticular wax coverage amounted to 4.2 +/- 0.4 mu g cm(-2) for C. colocynthis and 29.4 +/- 4.2 mu g cm(-2) for P. dactylifera. In both species, waxes were mainly composed of very-long-chain aliphatics. Midpoints of the wax melting ranges of P. dactylifera and C. colocynthis were 80 degrees C and 73 degrees C, respectively. We conclude that in P. dactylifera a particular wax and cutin chemistry prevents the rise of g(min) at elevated temperatures.
英文关键词	Citrullus colocynthis cuticular transpiration cuticular waxes drought Phoenix dactylifera thermal stress
类型	Article
语种	英语
国家	Germany ; Saudi Arabia
开放获取类型	hybrid, Green Published
收录类别	SCI-E
WOS记录号	WOS:000461145400016
WOS关键词	MOLECULAR-DYNAMICS ; NATURAL WAXES ; PERMEABILITY ; CUTICLES ; CUTIN ; ECOPHYSIOLOGY ; MEMBRANES ; LEAVES ; LONG
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
来源机构	King Saud University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216999
作者单位	1.Univ Wurzburg, Julius von Sachs Inst Biol Sci, Chair Bot Ecophysiol & Vegetat Ecol 2, Julius von Sachs Pl 3, D-97082 Wurzburg, Germany; 2.King Saud Univ, Coll Sci, Dept Bot & Microbiol, POB 2455, Riyadh 11451, Saudi Arabia; 3.Univ Wurzburg, Julius von Sachs Inst Biol Sci, Chair Bot Mol Plant Physiol & Biophys 1, Julius von Sachs Pl 2, D-97082 Wurzburg, Germany
推荐引用方式 GB/T 7714	Bueno, Amauri,Alfarhan, Ahmed,Arand, Katja,et al. Effects of temperature on the cuticular transpiration barrier of two desert plants with water-spender and water-saver strategies[J]. King Saud University,2019,70(5):1613-1625.
APA	Bueno, Amauri.,Alfarhan, Ahmed.,Arand, Katja.,Burghardt, Markus.,Deininger, Ann-Christin.,...&Riederer, Markus.(2019).Effects of temperature on the cuticular transpiration barrier of two desert plants with water-spender and water-saver strategies.JOURNAL OF EXPERIMENTAL BOTANY,70(5),1613-1625.
MLA	Bueno, Amauri,et al."Effects of temperature on the cuticular transpiration barrier of two desert plants with water-spender and water-saver strategies".JOURNAL OF EXPERIMENTAL BOTANY 70.5(2019):1613-1625.