干旱区生态环境知识资源中心(Arid): Leaf water relations reflect canopy phenology rather than leaf life span in Sonoran Desert trees

Arid

DOI	10.1093/treephys/tpab032
	Leaf water relations reflect canopy phenology rather than leaf life span in Sonoran Desert trees
	Gonzalez-Rebeles, Georgina; Terrazas, Teresa; Mendez-Alonzo, Rodrigo; Paz, Horacio; Brodribb, Tim J.; Tinoco-Ojanguren, Clara
通讯作者	Tinoco-Ojanguren, C (corresponding author), Univ Nacl Autonoma Mexico, Inst Ecol, Campus Hermosillo,Luis Donaldo Colosio S-N, Los Arcos 83250, Sonora, Mexico.
来源期刊	TREE PHYSIOLOGY
ISSN	0829-318X
EISSN	1758-4469
出版年	2021
卷号	41 期号:9 页码:1627-1640
英文摘要	Plants from arid environments display covarying traits to survive or resist drought. Plant drought resistance and ability to survive long periods of low soil water availability should involve leaf phenology coordination with leaf and stem functional traits related to water status. This study tested correlations between phenology and functional traits involved in plant water status regulation in 10 Sonoran Desert tree species with contrasting phenology. Species seasonal variation in plant water status was defined by calculating their relative positions along the iso/anisohydric regulation continuum based on their hydroscape areas (HA)-a metric derived from the relationship between predawn and midday water potentials-and stomatal and hydraulic traits. Additionally, functional traits associated with plant water status regulation, including lamina vessel hydraulic diameter (DHL), stem-specific density (SSD) and leaf mass per area (LMA) were quantified per species. To characterize leaf phenology, leaf longevity (LL) and canopy foliage duration (FD) were determined. Hydroscape area was strongly correlated with FD but not with leaf longevity (LL); HA was significantly associated with SSD and leaf hydraulic traits (DHL, LMA) but not with stem hydraulic traits (vulnerability index, relative conductivity); and FD was strongly correlated with LMA and SSD. Leaf physiological characteristics affected leaf phenology when it was described as canopy FD better than when described as LL. Stem and leaf structure and hydraulic functions were not only relevant for categorizing species along the iso/anisohydric continuum but also allowed identifying different strategies of desert trees within the last-slow' plant economics spectrum. The results in this study pinpoint the set of evolutionary pressures that shape the Sonoran Desert Scrub physiognomy.
英文关键词	drought responses iso/anisohydry phenotype diversity plant economics spectrum water status regulation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000710990200006
WOS关键词	PLANT ECONOMICS SPECTRUM ; TURGOR LOSS POINT ; TROPICAL FOREST ; DROUGHT TOLERANCE ; HYDRAULIC CONDUCTANCE ; TRAITS ; STEM ; COORDINATION ; PHYSIOLOGY ; HYDROSCAPES
WOS类目	Forestry
WOS研究方向	Forestry
来源机构	Universidad Nacional Autónoma de México
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368034
作者单位	[Gonzalez-Rebeles, Georgina; Tinoco-Ojanguren, Clara] Univ Nacl Autonoma Mexico, Inst Ecol, Campus Hermosillo,Luis Donaldo Colosio S-N, Los Arcos 83250, Sonora, Mexico; [Gonzalez-Rebeles, Georgina] Univ Nacl Autonoma Mexico, Posgrad Ciencias Biol, Unidad Posgrad, Ciudad Univ, Ciudad De Mexico 04510, Mexico; [Terrazas, Teresa] Univ Nacl Autonoma Mexico, Inst Biol, Circuito Zona Deportiva S-N,Ciudad Univ, Ciudad De Mexico 04510, Mexico; [Mendez-Alonzo, Rodrigo] Ctr Invest Cient & Educ Super Ensenada, Dept Biol Conservac, Carretera Ensenada Tijuana 3918, Ensenada 22860, Baja California, Mexico; [Paz, Horacio] Univ Nacl Autonoma Mexico, Inst Invest Ecosistemas & Sustentabilidad, Antigua Carretera Patzcuaro 8701, Morelia 58190, Michoacan, Mexico; [Brodribb, Tim J.] Univ Tasmania, Dept Plant Sci, Hobart, Tas 7005, Australia
推荐引用方式 GB/T 7714	Gonzalez-Rebeles, Georgina,Terrazas, Teresa,Mendez-Alonzo, Rodrigo,et al. Leaf water relations reflect canopy phenology rather than leaf life span in Sonoran Desert trees[J]. Universidad Nacional Autónoma de México,2021,41(9):1627-1640.
APA	Gonzalez-Rebeles, Georgina,Terrazas, Teresa,Mendez-Alonzo, Rodrigo,Paz, Horacio,Brodribb, Tim J.,&Tinoco-Ojanguren, Clara.(2021).Leaf water relations reflect canopy phenology rather than leaf life span in Sonoran Desert trees.TREE PHYSIOLOGY,41(9),1627-1640.
MLA	Gonzalez-Rebeles, Georgina,et al."Leaf water relations reflect canopy phenology rather than leaf life span in Sonoran Desert trees".TREE PHYSIOLOGY 41.9(2021):1627-1640.