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Galactolipid remodeling is involved in drought-induced leaf senescence in maize
Chen, Daoqian1,2; Wang, Shiwen1,3; Qi, Lingyun1; Yin, Lina1,3; Deng, Xiping1,3
2018-06-01
Source PublicationENVIRONMENTAL AND EXPERIMENTAL BOTANY
ISSN0098-8472
Volume150Pages:57-68
Corresponding AuthorYin, Lina(linayin@nwsuaf.edu.cn)
AbstractDrought triggers leaf senescence, leading to a critical decrease in crop yield. The membrane lipid composition generally undergoes major changes during drought. However, little is known about the role of galactolipid remodeling in the drought-induced senescence response in crops. Here, a comparative study of alterations in galactolipid and fatty acid composition during drought and recovery was carried out using two maize cultivars differing in drought-induced leaf senescence. Under drought condition, the monogalactosyldiacylglycerol (MGDG) content was decreased by 18.3% and 25.9% in the cultivar with retarded leaf senescence and the senescent cultivar, respectively, while digalactosyldiacylglycerol (DGDG) was enhanced by 43.2% and 22.9%. Compared with the senescent cultivar, the DGDG content and the DGDG/MGDG ratio were 29.8% and 20.7% higher in the cultivar with retarded leaf senescence, which also maintained stable chloroplast ultrastructure under drought stress. The expressions of key galactolipid biosynthesis genes in both cultivars were up-regulated by the drought stress. In addition, the expression levels were higher in the cultivar with retarded leaf senescence than that in the senescent cultivar. These results suggests that a profound modification of galactolipid composition with high DGDG content and DGDG/MGDG ratio is associated with the alleviation of leaf senescence in response to drought. The regulation of galactolipid remodeling could be a promising strategy for alleviating the leaf senescence and improving drought adaptation in crops.
KeywordDrought stress Leaf senescence Galactolipid Monogalactosyldiacylglycerol Digalactosyldiacylglycerol Zea mays
DOI10.1016/j.envexpbot.2018.02.017
WOS KeywordPHOTOSYSTEM-II ; VIGNA-UNGUICULATA ; WATER-STRESS ; HEAT-STRESS ; LIPID-METABOLISM ; MEMBRANE-LIPIDS ; POLAR LIPIDS ; LEAVES ; TOLERANCE ; ARABIDOPSIS
Indexed BySCI
Language英语
Funding ProjectNational Natural Sciences Foundation of China[31200206] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2015389] ; West Light Foundation of the Chines Academy of Science ; Youth Elite Project of Northwest AF University ; Young Faculty Study Abroad Program of Northwest AF University ; Project of Youth Science and Technology New Star in Shaanxi Province[2016KJXX-66] ; National Basic Research Program of China[2015CB150402]
Funding OrganizationNational Natural Sciences Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; West Light Foundation of the Chines Academy of Science ; Youth Elite Project of Northwest AF University ; Young Faculty Study Abroad Program of Northwest AF University ; Project of Youth Science and Technology New Star in Shaanxi Province ; National Basic Research Program of China
WOS Research AreaPlant Sciences ; Environmental Sciences & Ecology
WOS SubjectPlant Sciences ; Environmental Sciences
WOS IDWOS:000431934600006
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/55054
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYin, Lina
Affiliation1.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Fujian Agr & Forestry Univ, Coll Crop Sci, Fuzhou 350002, Fujian, Peoples R China
3.Northwest A&F Univ, Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Chen, Daoqian,Wang, Shiwen,Qi, Lingyun,et al. Galactolipid remodeling is involved in drought-induced leaf senescence in maize[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2018,150:57-68.
APA Chen, Daoqian,Wang, Shiwen,Qi, Lingyun,Yin, Lina,&Deng, Xiping.(2018).Galactolipid remodeling is involved in drought-induced leaf senescence in maize.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,150,57-68.
MLA Chen, Daoqian,et al."Galactolipid remodeling is involved in drought-induced leaf senescence in maize".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 150(2018):57-68.
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