干旱区生态环境知识资源中心(Arid): Nitrogen Application Promotes Drought-Stressed Sugar Beet Growth by Improving Photosynthesis, Osmoregulation, and Antioxidant Defense

Arid

DOI	10.1007/s42729-022-01119-w
	Nitrogen Application Promotes Drought-Stressed Sugar Beet Growth by Improving Photosynthesis, Osmoregulation, and Antioxidant Defense
	Zhou, Hongliang; Xu, Pengjie; Zhang, Lijuan; Huang, Ruimin; Yang, Mingfeng; Wang, Kaiyong; Fan, Hua
通讯作者	Wang, KY ; Fan, H
来源期刊	JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
ISSN	0718-9508
EISSN	0718-9516
出版年	2023
卷号	23 期号:1 页码:1272-1285
英文摘要	Drought stress is the most common abiotic stress, limiting sugar beet production in arid regions. However, at present, how nitrogen (N) application affects sugar beet growth during drought stress is still unclear. In this field experiment, moderate drought stress was performed on sugar beet plants at the canopy growth stage (45 similar to 90 days after emergence (DAE)), and different doses of N (0 kg ha(-1) (N0), 150 kg ha(-1) (N1, normal N application rate), and 225 kg ha(-1) (N2, high N application rate)) were applied. After that, the leaf photosynthesis, antioxidant defense system, osmoregulation, and transcriptome were analyzed. The results showed that N supply led to upregulated expression of key genes related to chlorophyll metabolism (BVRB_5g114540, BVRB_5g105530, BVRB_1g021010, BVRB_2g047600, BVRB_005040) and antioxidant defense (BVRB_8g194440, BVRB_6g130380, BVRB_1g008510). This further led to the increases in chlorophyll content (Chl a + b) (65.32 similar to 78.77%), superoxide dismutase (SOD) (42.01 similar to 95.47%), and ascorbic peroxidase (APX) (42.71 similar to 76.77%) activity, and solid protein (SP) content (45.21 similar to 49.75%) (p < 0.05). Besides, N supply increased the dry matter accumulation by 48.44 similar to 84.40% (p < 0.05) by increasing electron flow used for ribulose biphosphate (RuBP) carboxylation (J(C)), effective quantum yield of CO2 fixation (CYRILLIC CAPITAL LETTER EFCO2), and net photosynthetic rate (Pn). However, except for SOD and APX activity, there were no significant differences in other indexes between the N1 and N2 groups. Therefore, under drought stress, the application of 150 kg N ha(-1) can improve sugar beet leaf photosynthesis, antioxidant defense, and osmoregulation, thus improving sugar beet tolerance to drought stress and promoting plant growth.
英文关键词	Chlorophyll fluorescence Gas exchange Osmotic regulation Transcriptome
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000907063500004
WOS关键词	DEFICIT IRRIGATION ; USE EFFICIENCY ; ENERGY-DISSIPATION ; WATER-STRESS ; METABOLISM ; INCREASES ; PLANTS ; WHEAT ; PHOTORESPIRATION ; MECHANISMS
WOS类目	Plant Sciences ; Environmental Sciences ; Soil Science
WOS研究方向	Plant Sciences ; Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397545
推荐引用方式 GB/T 7714	Zhou, Hongliang,Xu, Pengjie,Zhang, Lijuan,et al. Nitrogen Application Promotes Drought-Stressed Sugar Beet Growth by Improving Photosynthesis, Osmoregulation, and Antioxidant Defense[J],2023,23(1):1272-1285.
APA	Zhou, Hongliang.,Xu, Pengjie.,Zhang, Lijuan.,Huang, Ruimin.,Yang, Mingfeng.,...&Fan, Hua.(2023).Nitrogen Application Promotes Drought-Stressed Sugar Beet Growth by Improving Photosynthesis, Osmoregulation, and Antioxidant Defense.JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION,23(1),1272-1285.
MLA	Zhou, Hongliang,et al."Nitrogen Application Promotes Drought-Stressed Sugar Beet Growth by Improving Photosynthesis, Osmoregulation, and Antioxidant Defense".JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION 23.1(2023):1272-1285.