干旱区生态环境知识资源中心(Arid): Variations in Leaf Traits Modulate Plant Vegetative and Reproductive Phenological Sequencing Across Arid Mediterranean Shrublands

Arid

DOI	10.3389/fpls.2021.708367
	Variations in Leaf Traits Modulate Plant Vegetative and Reproductive Phenological Sequencing Across Arid Mediterranean Shrublands
	Navarro, Teresa; Hidalgo-Triana, Noelia
通讯作者	Navarro, T ; Hidalgo-Triana, N (corresponding author), Univ Malaga, Dept Bot & Plant Physiol, Fac Sci, Bot Area, Malaga, Spain.
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2021
卷号	12
英文摘要	Structural and nutrient traits of a leaf are important for understanding plant ecological strategies (e.g., drought avoidance). We studied the specific leaf area (SLA), leaf carbon content (LCC), leaf nitrogen content (LNC), leaf phosphorous content (LPC), and the phenophase sequence index (PSI) in 126 Mediterranean perennial species from predesert (SMS) and semiarid (SaMS) to subalpine (SAS), alpine cushion (AcS), and oro-Mediterranean (AjS) shrublands, which represent eight functional groups (evergreen and deciduous trees, evergreen large and half shrubs, deciduous large and half shrubs, succulents and perennial herbs). We analyzed the variation and relationships between leaf traits and PSI among shrublands, functional groups, and within species with drought-avoidance mechanisms. SLA variation of 20-60% could be ascribed to differences between functional groups and only 38-48% to different shrublands increasing from the predesert to the alpine. Alpine species display low PSI and N:P and high SLA, LNC, LPC, LCC, and C:N. On the contrary, predesert and semiarid showed high PSI and low SLA. SLA mediates the vegetative and reproductive phenological plant sequencing, high SLA is often associated with the overlapping in growth and reproductive phenophases with a seasonal reduction of vegetative growth, whereas low SLA is associated with vegetative and reproductive sequencing and a seasonal extension of vegetative growth. Species with drought-avoidance mechanisms (e.g., semideciduous species) contribute to an increase in the mean values of the SLA and LNC because these species show similar leaf and phenological patterns as the deciduous (high SLA and LNC and low PSI). The N:P indicates that only the alpine shrublands could present P limitations. The positive correlations between SLA and LPC and LNC and LPC (leaf economic spectrum) and the negative correlation between SLA and C:N were consistently maintained in the studied arid Mediterranean shrublands.
英文关键词	arid Mediterranean climate leaf economics spectrum nitrogen phosphorus perennial species phenophase sequence index specific leaf area stoichiometry
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000692852200001
WOS关键词	C-N-P ; NUTRIENT CONCENTRATIONS ; CONSTRUCTION COSTS ; STOICHIOMETRY ; NITROGEN ; AREA ; LIMITATION ; MORPHOLOGY ; PATTERNS ; LEAVES
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/2XILL650/368520
作者单位	[Navarro, Teresa; Hidalgo-Triana, Noelia] Univ Malaga, Dept Bot & Plant Physiol, Fac Sci, Bot Area, Malaga, Spain
推荐引用方式 GB/T 7714	Navarro, Teresa,Hidalgo-Triana, Noelia. Variations in Leaf Traits Modulate Plant Vegetative and Reproductive Phenological Sequencing Across Arid Mediterranean Shrublands[J],2021,12.
APA	Navarro, Teresa,&Hidalgo-Triana, Noelia.(2021).Variations in Leaf Traits Modulate Plant Vegetative and Reproductive Phenological Sequencing Across Arid Mediterranean Shrublands.FRONTIERS IN PLANT SCIENCE,12.
MLA	Navarro, Teresa,et al."Variations in Leaf Traits Modulate Plant Vegetative and Reproductive Phenological Sequencing Across Arid Mediterranean Shrublands".FRONTIERS IN PLANT SCIENCE 12(2021).