干旱区生态环境知识资源中心(Arid): Variation in climatic tolerance, but not stomatal traits, partially explains Pooideae grass species distributions

Arid

DOI	10.1093/aob/mcab046
	Variation in climatic tolerance, but not stomatal traits, partially explains Pooideae grass species distributions
	Das, Aayudh; Prakash, Anoob; Dedon, Natalie; Doty, Alex; Siddiqui, Muniba; Preston, Jill C.
通讯作者	Preston, JC (corresponding author), Univ Vermont, Dept Plant Biol, Burlington, VT 05405 USA.
来源期刊	ANNALS OF BOTANY
ISSN	0305-7364
EISSN	1095-8290
出版年	2021
卷号	128 期号:1 页码:83-95
英文摘要	Background and Aims: Grasses in subfamily Pooideae live in some of the world's harshest terrestrial environments, from frigid boreal zones to the arid windswept steppe. It is hypothesized that the climate distribution of species within this group is driven by differences in climatic tolerance, and that tolerance can be partially explained by variation in stomatal traits. Methods: We determined the aridity index (AI) and minimum temperature of the coldest month (MTCM) for 22 diverse Pooideae accessions and one outgroup, and used comparative methods to assess predicted relationships for climate traits versus fitness traits, stomatal diffusive conductance to water (g(w)) and speed of stomatal closure following drought and/or cold. Key Results: Results demonstrate that AI and MTCM predict variation in survival/regreening following drought/cold, and g(w) under drought/cold is positively correlated with delta C-13-measured water use efficiency (WUE). However, the relationship between climate traits and fitness under drought/cold was not explained by g(w) or speed of stomatal closure. Conclusions: These findings suggest that Pooideae distributions are at least partly determined by tolerance to aridity and above-freezing cold, but that variation in tolerance is not uniformly explained by variation in stomatal traits.
英文关键词	Climatic distribution cold tolerance drought tolerance grass adaptation guard cells Pooideae stomata
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000734192000009
WOS关键词	WATER-USE EFFICIENCY ; IMPROVES DROUGHT TOLERANCE ; PLANT DROUGHT ; ALPINE PLANT ; GAS-EXCHANGE ; STRESS ; COLD ; CONDUCTANCE ; TEMPERATE ; EVOLUTION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373606
作者单位	[Das, Aayudh; Prakash, Anoob; Dedon, Natalie; Doty, Alex; Siddiqui, Muniba; Preston, Jill C.] Univ Vermont, Dept Plant Biol, Burlington, VT 05405 USA
推荐引用方式 GB/T 7714	Das, Aayudh,Prakash, Anoob,Dedon, Natalie,et al. Variation in climatic tolerance, but not stomatal traits, partially explains Pooideae grass species distributions[J],2021,128(1):83-95.
APA	Das, Aayudh,Prakash, Anoob,Dedon, Natalie,Doty, Alex,Siddiqui, Muniba,&Preston, Jill C..(2021).Variation in climatic tolerance, but not stomatal traits, partially explains Pooideae grass species distributions.ANNALS OF BOTANY,128(1),83-95.
MLA	Das, Aayudh,et al."Variation in climatic tolerance, but not stomatal traits, partially explains Pooideae grass species distributions".ANNALS OF BOTANY 128.1(2021):83-95.