干旱区生态环境知识资源中心(Arid): Modular growth and functional heterophylly of the phreatophyte Ziziphus lotus: A trait-based study

Arid

DOI	10.1111/1442-1984.12343
	Modular growth and functional heterophylly of the phreatophyte Ziziphus lotus: A trait-based study
	Trinidad Torres-Garcia, M.; Jacoba Salinas-Bonillo, Maria; Pacheco-Romero, Manuel; Cabello, Javier
通讯作者	Torres-Garcia, MT (corresponding author), Univ Almeria, Andalusian Ctr Assessment & Monitoring Global Cha, Dept Biol & Geol, Almeria, Spain.
来源期刊	PLANT SPECIES BIOLOGY
ISSN	0913-557X
EISSN	1442-1984
出版年	2021
英文摘要	The variation of plant functional traits, from the cell to the whole-plant level, is a central question in trait-based ecology with regard to understanding ecological strategies and adaptations that result from environmental drivers. Here, we analyzed whole-plant and leaf traits of the phreatophyte Ziziphus lotus (L.) Lam., a long-lived shrub that dominates one of the few terrestrial groundwater-dependent ecosystems (GDEs) in Mediterranean Basin drylands. We (a) assessed architectural traits and growth patterns, (b) analyzed leaf morpho-functional traits (specific leaf area [SLA] and stomata pore index [SPI]) and physiological traits (gas exchange rates), as well as their variations within individuals, and (c) evaluated temporal variations in modular growth (i.e., sequential iteration of structural units) between growing seasons and in leaf traits within seasons. Z. lotus' growth pattern was based on the repetition of modules composed of shoots (short and long) and branches (flowering and plagiotropic) that promoted a functional differentiation between vegetative and reproductive structures, respectively. We identified morpho-functionally distinct leaves (i.e., heterophylly) borne on different types of branches. Leaves on flowering branches had higher SLA and water use efficiency (WUEi), but lower SPI and transpiration rates than leaves on vegetative ones. We also observed trade-offs in the elongation of vegetative and flowering structures between growing seasons: the shorter the long shoots, the larger the flowering branches. The modular differentiation and heterophylly of Z. lotus might contribute to prioritizing the investment of resources of this phreatophyte, either for growth or reproduction, and could improve the efficiency in uptake and conservation of resources in drylands.
英文关键词	functional traits heteroblasty modular unit plant architecture Rhamnaceae
类型	Article ; Early Access
语种	英语
开放获取类型	Other Gold
收录类别	SCI-E
WOS记录号	WOS:000656651300001
WOS关键词	INTRASPECIFIC VARIATION ; PHENOTYPIC PLASTICITY ; HYDRAULIC TRAITS ; LEAF ; DESERT ; PLANTS ; WATER ; PHOTOSYNTHESIS ; ALLOCATION ; GRADIENTS
WOS类目	Plant Sciences ; Ecology
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352438
作者单位	[Trinidad Torres-Garcia, M.; Jacoba Salinas-Bonillo, Maria; Pacheco-Romero, Manuel; Cabello, Javier] Univ Almeria, Andalusian Ctr Assessment & Monitoring Global Cha, Dept Biol & Geol, Almeria, Spain
推荐引用方式 GB/T 7714	Trinidad Torres-Garcia, M.,Jacoba Salinas-Bonillo, Maria,Pacheco-Romero, Manuel,et al. Modular growth and functional heterophylly of the phreatophyte Ziziphus lotus: A trait-based study[J],2021.
APA	Trinidad Torres-Garcia, M.,Jacoba Salinas-Bonillo, Maria,Pacheco-Romero, Manuel,&Cabello, Javier.(2021).Modular growth and functional heterophylly of the phreatophyte Ziziphus lotus: A trait-based study.PLANT SPECIES BIOLOGY.
MLA	Trinidad Torres-Garcia, M.,et al."Modular growth and functional heterophylly of the phreatophyte Ziziphus lotus: A trait-based study".PLANT SPECIES BIOLOGY (2021).