干旱区生态环境知识资源中心(Arid): Pretreating poplar cuttings with low nitrogen ameliorates salt stress responses by increasing stored carbohydrates and priming stress signaling pathways

Arid

DOI	10.1016/j.ecoenv.2021.112801
	Pretreating poplar cuttings with low nitrogen ameliorates salt stress responses by increasing stored carbohydrates and priming stress signaling pathways
	Gao, Yongfeng; Sun, Yufang; Ou, Yongbin; Zheng, Xinhua; Feng, Qian; Zhang, Hao; Fei, Yang; Luo, Jie; Resco de Dios, Victor; Yao, Yinan
通讯作者	de Dios, VR ; Yao, YA (corresponding author), Southwest Univ Sci & Technol, Sch Life Sci & Engn, Mianyang 621010, Sichuan, Peoples R China.
来源期刊	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN	0147-6513
EISSN	1090-2414
出版年	2021
卷号	225
英文摘要	Soil salinity is a widespread stress in semi-arid forests worldwide, but how to manage nitrogen (N) nutrition to improve plant saline tolerance remains unclear. Here, the cuttings of a widely distributed poplar from central Asia, Populus russikki Jabl., were exposed to either normal or low nitrogen (LN) concentrations for two weeks in semi-controlled greenhouse, and then they were added with moderate salt solution or not for another two weeks to evaluate their physiological, biochemical, metabolites and transcriptomic profile changes. LN-pretreating alleviated the toxicity caused by the subsequent salt stress in the poplar plants, demonstrated by a significant reduction in the influx of Na+ and Cl- and improvement of the K+/Na+ ratio. The other salt-stressed traits were also ameliarated, indicated by the variations of chlorophyll content, PSII photochemical activity and lipid peroxidation. Stress alleviation resulted from two different processes. First, LN pretreatment caused a significant increase of non-structural carbohydrates (NSC), allowed for an increased production of osmolytes and a higher potential fueling ion transport under subsequent salt condition, along with increased transcript levels of the cation/H+ ATPase. Second, LN pretreatment enhanced the transcript levels of stress signaling components and phytohormones pathway as well as antioxidant enzyme activities. The results indicate that early restrictions of N supply could enhance posterior survival under saline stress in poplar plants, which is important for plantation programs and restoration activities in semi-arid areas.
英文关键词	Populus russikki Salt stress Transcriptome profile change Carbon nitrogen ratio K plus Na plus ratio Cross tolerance Growth and defense trade-off
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000703487300005
WOS关键词	EXPRESSION ; TOLERANCE ; PLANTS ; SALINITY
WOS类目	Environmental Sciences ; Toxicology
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363053
作者单位	[Gao, Yongfeng; Sun, Yufang; Ou, Yongbin; Zheng, Xinhua; Feng, Qian; Zhang, Hao; Fei, Yang; Resco de Dios, Victor; Yao, Yinan] Southwest Univ Sci & Technol, Sch Life Sci & Engn, Mianyang 621010, Sichuan, Peoples R China; [Sun, Yufang] Xinjiang Agr Univ, Coll Forestry & Hort, Urumqi 830052, Peoples R China; [Luo, Jie] Huazhong Agr Univ, Coll Hort & Forestry Sci, Hubei Engn Technol Res Ctr Forestry Informat, Wuhan 430070, Peoples R China; [Resco de Dios, Victor] Univ Lleida, Dept Crop & Forest Sci, Lleida 25198, Spain; [Resco de Dios, Victor] Univ Lleida, Joint Res Unit, CTFC AGROTECNIO CERCA Ctr, Lleida 25198, Spain
推荐引用方式 GB/T 7714	Gao, Yongfeng,Sun, Yufang,Ou, Yongbin,et al. Pretreating poplar cuttings with low nitrogen ameliorates salt stress responses by increasing stored carbohydrates and priming stress signaling pathways[J],2021,225.
APA	Gao, Yongfeng.,Sun, Yufang.,Ou, Yongbin.,Zheng, Xinhua.,Feng, Qian.,...&Yao, Yinan.(2021).Pretreating poplar cuttings with low nitrogen ameliorates salt stress responses by increasing stored carbohydrates and priming stress signaling pathways.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,225.
MLA	Gao, Yongfeng,et al."Pretreating poplar cuttings with low nitrogen ameliorates salt stress responses by increasing stored carbohydrates and priming stress signaling pathways".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 225(2021).