干旱区生态环境知识资源中心(Arid): Adaptation to low nitrogen and salt stresses in the desert poplar by effective regulation of nitrogen assimilation and ion balance

Arid

DOI	10.1016/j.plaphy.2022.10.021
	Adaptation to low nitrogen and salt stresses in the desert poplar by effective regulation of nitrogen assimilation and ion balance
	Huang, Gang; Sun, Yufang; Zhang, Xuan; Rodriguez, Lucas Gutierrez; Luo, Jianxun; Chen, Zihao; Ou, Yongbin; Gao, Yongfeng; Ghaffari, Hamideh; Yao, Yinan
通讯作者	Yao, YN
来源期刊	PLANT PHYSIOLOGY AND BIOCHEMISTRY
ISSN	0981-9428
EISSN	1873-2690
出版年	2022
卷号	193 页码:14-24
英文摘要	As a main desert plant from arid regions of Central Asia, Populus euphratica always encounters with nitrogen shortage in its long life, apart from salt or drought stress. However, it remains unknown how this species re-sponds to low nitrogen and combined stresses of low nitrogen and salinity. Thus, saplings of P. euphratica with uniform size were exposed to normal or low nitrogen condition (150 and 15 ppm ammonium nitrate separately) individually or in combination with salinity. Under low nitrogen conditions we found a positive effect on P. euphratica root growth, which could be associated to high level of nitrogen allocation to support root growth and effective regulation of nitrogen assimilation in comparison with the other poplar species reported before. Under salt stress the root growth of P. euphratica was significantly inhibited, with the side effects of oxidative stress, as saplings stored higher Na+ and Cl- contents in roots. Under the combined stressors of both salinity and low nitrogen, P. euphratica undergo a risky strategy, as stimulated root growth is accompanied by further oxidative stress.The concentrations of root K+ and whole plant NO3- were increased to support the tolerance of the combined stressors in P. euphratica, showing same characteristics with halophytes. Overall, our results provide evidence that the desert poplar can adapt to the salt stress/low nitrogen bundle, by effective regulation of nitrogen assimilation and ion homoeostasis.
英文关键词	Root growth Oxidative stress Nitrate reductase Sodium distribution Low nitrogen under salinity Ion balance
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000883767100002
WOS关键词	SODIUM ACCUMULATION ; ROOT-SYSTEM ; TOLERANCE ; SALINITY ; PLANTS ; GENE ; ARABIDOPSIS ; EXPRESSION ; GROWTH ; HOMEOSTASIS
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/2XILL650/393972
推荐引用方式 GB/T 7714	Huang, Gang,Sun, Yufang,Zhang, Xuan,et al. Adaptation to low nitrogen and salt stresses in the desert poplar by effective regulation of nitrogen assimilation and ion balance[J],2022,193:14-24.
APA	Huang, Gang.,Sun, Yufang.,Zhang, Xuan.,Rodriguez, Lucas Gutierrez.,Luo, Jianxun.,...&Yao, Yinan.(2022).Adaptation to low nitrogen and salt stresses in the desert poplar by effective regulation of nitrogen assimilation and ion balance.PLANT PHYSIOLOGY AND BIOCHEMISTRY,193,14-24.
MLA	Huang, Gang,et al."Adaptation to low nitrogen and salt stresses in the desert poplar by effective regulation of nitrogen assimilation and ion balance".PLANT PHYSIOLOGY AND BIOCHEMISTRY 193(2022):14-24.