干旱区生态环境知识资源中心(Arid): Exogenous Dopamine Application Promotes Alkali Tolerance of Apple Seedlings

Arid

DOI	10.3390/plants8120580
	Exogenous Dopamine Application Promotes Alkali Tolerance of Apple Seedlings
	Jiao, Xueyi; Li, Yuxing; Zhang, Xiuzhi; Liu, Chenlu; Liang, Wei; Li, Chao; Ma, Fengwang; Li, Cuiying
通讯作者	Li, Cuiying
来源期刊	PLANTS-BASEL
EISSN	2223-7747
出版年	2019
卷号	8 期号:12
英文摘要	Arid and semiarid apple producing areas suffer from severe alkalinity of soil, which strongly affects the yield and quality of apples. Dopamine (DA) is involved in metabolic activities in response to abiotic stress in plants. To detect the effects of exogenous DA application on the adaption of apple (Malus hupehensis) seedlings to alkali stress and as a protection from oxidative stress, 0.1 mM DA was identified as the most suitable concentration by hydroponic culture. Further experimentation showed that the growth and photosynthesis of apple seedlings were significantly inhibited under alkali stress, and more reactive oxygen species accumulated, compared with control. However, exogenous DA application suppressed the loss of the plant height, root length, chlorophyll levels, and photosynthetic capacity of apple seedlings that were caused by alkali stress. In the leaves of alkali stressed seedlings, the catalase, superoxide dismutase, and peroxidase activities were lower and hydrogen peroxide and malondialdehyde levels were higher than in the untreated plants. The presence of DA significantly alleviated such effects of alkali stress. In addition, exogenous DA application increased the antioxidant capacity of apple seedlings under alkali stress by increasing the level of chlorogenic acid. These results are significant for improving the alkali tolerance of apple in apple-producing areas with alkalized soil.
英文关键词	Malus alkali stress dopamine antioxidant capacity
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000506648700054
WOS关键词	INDUCED STRESS ; NUTRIENT DEFICIENCY ; PHENOLIC-COMPOUNDS ; CHLOROGENIC ACID ; SALT ; CATECHOLAMINES ; ANTIOXIDANT ; GROWTH ; PLANTS ; PHOTOSYNTHESIS
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
EI主题词	2019-12-01
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311180
作者单位	Northwest A&F Univ, Shaanxi Key Lab Apple, Coll Hort, State Key Lab Crop Stress Biol Arid Areas, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Jiao, Xueyi,Li, Yuxing,Zhang, Xiuzhi,et al. Exogenous Dopamine Application Promotes Alkali Tolerance of Apple Seedlings[J]. 西北农林科技大学,2019,8(12).
APA	Jiao, Xueyi.,Li, Yuxing.,Zhang, Xiuzhi.,Liu, Chenlu.,Liang, Wei.,...&Li, Cuiying.(2019).Exogenous Dopamine Application Promotes Alkali Tolerance of Apple Seedlings.PLANTS-BASEL,8(12).
MLA	Jiao, Xueyi,et al."Exogenous Dopamine Application Promotes Alkali Tolerance of Apple Seedlings".PLANTS-BASEL 8.12(2019).