Lipid composition remodeling and storage lipid conversion play a critical role in salt tolerance in alfalfa (Medicago sativa L.) leaves
文献类型: 外文期刊
第一作者: Li, Mingna
作者: Li, Mingna;Yu, Andong;Kang, Junmei;Chen, Lin;Zhu, Xiaoxi;Yang, Qingchuan;Long, Ruicai;Sun, Yan;Hu, Qianan
作者机构:
关键词: Lipid remodeling; Alfalfa; Salt stress; Storage lipid; Triacylglycerol; Lipid signaling
期刊名称:ENVIRONMENTAL AND EXPERIMENTAL BOTANY ( 影响因子:6.028; 五年影响因子:6.246 )
ISSN: 0098-8472
年卷期: 2023 年 205 卷
页码:
收录情况: SCI
摘要: Alfalfa is the most important forage internationally due to its high yield and nutritional value, but its production is severely limited by soil salinization. A better understanding of alfalfa's salt response mechanism is needed to provide guidance for breeding salt tolerant varieties. Lipidomic profiling of the salt-tolerant alfalfa cultivar Medicago sativa cv. Zhongmu-4 was performed after salt treatment. Of the 275 molecular species of lipid iden-tified, 171 had altered levels after salt treatment. The levels of phospholipids, glycolipids, fatty acids, and sphingolipids decreased whereas lysophospholipids and glycerides accumulated in the salt treated plants. Spe-cifically, higher PC/PE and DGDG/MGDG ratios and increased levels of FA 18:3 were observed, suggesting that changes in bilayer membrane structure integrity and fluidity maintenance occur in alfalfa leaves during salt stress. An accumulation of DAG (36:6, 36:5) and TAG (54:8, 54:9, 54:7, 54:6, 52:5, 52:6) was found, consistent with their potential role as storage substrates for membrane regeneration under salt stress. Changes in PI, LPC (16:0, 18:3, 18:2, 18:0), LPE (16:0, 18:2), and Cer (42:1;4 O, 34:1;4 O, 40:1;4 O) suggest these compounds may play a role in signal transduction under salt stress. The levels of PE, DGDG, and TAG were highly correlated (r> 0.8) with changes in salt-related physiological parameters. In addition, the apparent remodeling of lipid profiles was supported by complementary changes in gene expression, including DGD2, SQD2, FAD2, DGK, DGAT, and TAGL, that can be important candidate genes for alfalfa salt tolerance improvement. The detailed description of the changes occurring in lipid profiles and gene expression in alfalfa under salt stress provided by this study implicate lipid remodeling as an important feature of the salt-stress response, and provides a basis for the genetic improvement of alfalfa salt tolerance.
分类号:
- 相关文献
作者其他论文 更多>>
-
Hypoglycemic mechanism of Tegillarca granosa polysaccharides on type 2 diabetic mice by altering gut microbiota and regulating the PI3K-akt signaling pathwaye
作者:Jiang, Qihong;Wang, Rui;Liu, Shulai;Xiang, Xingwei;Jiang, Qihong;Wang, Rui;Liu, Shulai;Xiang, Xingwei;Jiang, Qihong;Wang, Rui;Liu, Shulai;Xiang, Xingwei;Chen, Lin;Shen, Guoxin;Chen, Yin;Deng, Shanggui
关键词:Tegillarca granosa polysaccharide; Type 2 diabetes mellitus; Glycolipid metabolism; PI3K/Akt signaling pathway
-
FtsH proteases confer protection against salt and oxidative stress in Medicago sativa L.
作者:Li, Mingna;Zhu, Xiaoxi;Yu, Qianwen;Yu, Andong;Chen, Lin;Kang, Junmei;Wang, Xue;Yang, Qingchuan;Long, Ruicai;Yang, Tianhui
关键词:Alfalfa; Phylogenetic relationship; Abiotic stress tolerance; ROS scavenge; RS signaling
-
Effect of Lactobacillus salivarius SNK-6 on egg quality, intestinal morphology, and cecal microbial community of laying hens
作者:Liu, Wei;Liu, Jie;Li, Dapeng;Han, Haixia;Sun, Yan;Lei, Qiuxia;Wang, Jie;Zhou, Yan;Cao, Dingguo;Li, Huimin;Li, Fuwei;Liu, Wei;Liu, Jie;Li, Dapeng;Han, Haixia;Sun, Yan;Lei, Qiuxia;Wang, Jie;Zhou, Yan;Cao, Dingguo;Li, Huimin;Li, Fuwei;Liu, Wei;Liu, Jie;Li, Dapeng;Han, Haixia;Sun, Yan;Lei, Qiuxia;Wang, Jie;Zhou, Yan;Cao, Dingguo;Li, Huimin;Li, Fuwei;Yan, Huaxiang
关键词:Lactobacillus salivarius; egg quality; intestinal morphology; cecal microbial community; laying hen
-
Overexpression of Mtr-miR319a Contributes to Leaf Curl and Salt Stress Adaptation in Arabidopsis thaliana and Medicago truncatula
作者:Li, Mingna;Xu, Lei;Zhang, Lixia;Li, Xiao;Cao, Chunyu;Chen, Lin;Kang, Junmei;Yang, Qingchuan;Liu, Yajiao;Sod, Bilig;Long, Ruicai
关键词:Medicago truncatula; miR319; salt tolerance; TCP; leaf curl
-
Genome-Wide Identification and Phylogenetic and Expression Analyses of the PLATZ Gene Family in Medicago sativa L.
作者:Li, Xianyang;He, Fei;Li, Mingna;Long, Ruicai;Kang, Junmei;Yang, Qingchuan;Chen, Lin;Li, Xianyang;Zhao, Guoqing
关键词:alfalfa; MsPLATZ; gene family; abiotic stress; genome-wide
-
Comparison of Rhizospheric and Endophytic Bacterial Compositions between Netted and Oriental Melons
作者:Xiao, Jian;Sun, Yan;Tang, Xiaofu;Yang, Shangdong;He, Yi;Huang, Jinyan;Xiao, Jian
关键词:netted melon (var; reticulatus Naud; ); oriental melon (var; conomon Makino); endophytic bacteria; high-throughput sequencing; rhizosphere
-
Effect of Paecilomyces cicadae polysaccharide Pc0-1 on cyclophosphamide-induced immunosuppression and regulation of intestinal flora in mice
作者:Yao, Shiwei;Yang, Xingwen;Jiang, Qihong;Xiang, Xingwei;Yao, Shiwei;Yang, Xingwen;Jiang, Qihong;Xiang, Xingwei;Yao, Shiwei;Yang, Xingwen;Jiang, Qihong;Xiang, Xingwei;Yao, Shiwei;Yang, Xingwen;Jiang, Qihong;Xiang, Xingwei;Chen, Lin;Deng, Shanggui;Zheng, Bin;Chen, Yin;Xiang, Xingwei;Chen, Yin
关键词:Paecilomyces cicadae; Pc0-1; Cyclophosphamide; Intestinal flora; Immunosuppression