干旱区生态环境知识资源中心(Arid): How far can it go? Tolerance of seeds and seedlings of an invasive tree to water deficit and high temperatures

Arid

DOI	10.1007/s11258-024-01443-4
	How far can it go? Tolerance of seeds and seedlings of an invasive tree to water deficit and high temperatures
	Ferreras, Ana E.; Marcora, Paula I.; Tecco, Paula A.; Venier, Paula; Funes, Guillermo; Zeballos, Sebastian R.
通讯作者	Ferreras, AE
来源期刊	PLANT ECOLOGY
ISSN	1385-0237
EISSN	1573-5052
出版年	2024
卷号	225 期号:9 页码:919-927
英文摘要	The ability of non-native plant species to tolerate water scarcity and high temperatures, especially during the early stages of development, may influence their invasive potential. Ligustrum lucidum is a tree native to warm temperate areas of Asia. To understand the potential expansion of this non-native invasive species into more arid regions, we conducted an experiment in incubation chambers to evaluate seed germination under different water potentials and the response of its seedlings under different water availability and temperature scenarios. Seeds were collected from central Argentina and placed to germinate under four different water potentials (-0.2; -0.4; -0.7 and -1.2 MPa) created with polyethylene glycol 6000. Additionally, L. lucidum seedlings were subjected to contrasting levels of water availability combined with different periods of exposure to high temperatures. Germination measurements (germination percentage, velocity, and synchronicity) decreased at lower water potentials. No germination occurred at -0.7 and -1.2 MPa. The seedlings showed a slight increase in mortality and a significant reduction in most of the growth variables under low water availability, while exposure to high temperatures had significant effects only on chlorophyll estimate. The germination response of L. lucidum to water deficits could pose a significant constraint on its establishment in arid ecosystems. Nonetheless, this constraint may be alleviated by the species' prolific propagule production, coupled with asynchronous seed germination, which may help it exploit more humid micro-sites or sporadic water events. Furthermore, the drought tolerance of its seedlings strongly warns against the use of this species as an ornamental plant in arid environments.
英文关键词	Arid environments Exotic species Ligustrum lucidum Alien species Regenerative niche Woody invasive
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001258012200001
WOS关键词	LIGUSTRUM-LUCIDUM ; MOUNTAIN WOODLANDS ; GERMINATION ; RECRUITMENT ; ECOLOGY ; GROWTH ; FOREST ; PLANTS
WOS类目	Plant Sciences ; Ecology ; Forestry
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405102
推荐引用方式 GB/T 7714	Ferreras, Ana E.,Marcora, Paula I.,Tecco, Paula A.,et al. How far can it go? Tolerance of seeds and seedlings of an invasive tree to water deficit and high temperatures[J],2024,225(9):919-927.
APA	Ferreras, Ana E.,Marcora, Paula I.,Tecco, Paula A.,Venier, Paula,Funes, Guillermo,&Zeballos, Sebastian R..(2024).How far can it go? Tolerance of seeds and seedlings of an invasive tree to water deficit and high temperatures.PLANT ECOLOGY,225(9),919-927.
MLA	Ferreras, Ana E.,et al."How far can it go? Tolerance of seeds and seedlings of an invasive tree to water deficit and high temperatures".PLANT ECOLOGY 225.9(2024):919-927.