气候变化领域集成服务门户(CCPortal): Populus euphratica has stronger regrowth ability than Populus pruinosa under salinity stress

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DOI	10.1111/ppl.14297
	Populus euphratica has stronger regrowth ability than Populus pruinosa under salinity stress
	Huang, Zongdi; Zhai, Juntuan; Li, Zhijun; Yu, Lei
发表日期	2024
ISSN	0031-9317
EISSN	1399-3054
起始页码	176
结束页码	2
卷号	176 期号:2
英文摘要	Pest infestation and soil salinization levels are increasing due to climate change. Comprehending plant regrowth after insect damage and salinity stress is crucial to understanding climate change's multifactorial impacts on forest ecosystems. This study examined Populus euphratica and P. pruinosa regrowth after different defoliation levels combined with salinity stress. Specifically, the biomass and regrowth ability, non-structural carbohydrate (NSC) and nitrogen (N) pools in different organs and the whole plant, and the leaf Cl- concentration of both poplars were analyzed. Our results showed that after 50% defoliation and no salt addition, the regrowth of both species recovered similarly to the control level, while their regrowth was about 70% after 90% defoliation. However, under salinity stress, the regrowth (% leaf biomass) of P. euphratica was significantly higher than P. pruinose at either the 50% or 90% defoliation levels. Additionally, P. euphratica had more soluble sugar, starch, NSC and N pools in leaf, stem, root and whole plant than P. pruinose under salinity stress. The regrowth based on leaf biomass increased linearly with soluble sugar, starch, NSC and N pools, and decreased linearly with leaf Cl- concentration across different salinity and defoliation levels. These results indicated that defoliation significantly decreased NSC and N pools, limiting the growth of both poplars, and salinity stress exacerbated the negative effect. Furthermore, when suffering from salinity stress, P. euphratica with higher NSC and N pools exhibited stronger regrowth ability than P. pruinose.
语种	英语
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
WOS记录号	WOS:001204722200001
来源期刊	PHYSIOLOGIA PLANTARUM
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288467
作者单位	Hangzhou Normal University; Tarim University
推荐引用方式 GB/T 7714	Huang, Zongdi,Zhai, Juntuan,Li, Zhijun,et al. Populus euphratica has stronger regrowth ability than Populus pruinosa under salinity stress[J],2024,176(2).
APA	Huang, Zongdi,Zhai, Juntuan,Li, Zhijun,&Yu, Lei.(2024).Populus euphratica has stronger regrowth ability than Populus pruinosa under salinity stress.PHYSIOLOGIA PLANTARUM,176(2).
MLA	Huang, Zongdi,et al."Populus euphratica has stronger regrowth ability than Populus pruinosa under salinity stress".PHYSIOLOGIA PLANTARUM 176.2(2024).