Contrasting Changes Caused by Drought and Submergence Stresses in Bermudagrass (Cynodon dactylon)

doi:10.3389/fpls.2015.00951

CORC > 武汉植物园 > 中国科学院武汉植物园

	Contrasting Changes Caused by Drought and Submergence Stresses in Bermudagrass (Cynodon dactylon)
	Ye, Tiantian 1,2; Shi, Haitao 1; Wang, Yanping 1; Chan, Zhulong 1
刊名	FRONTIERS IN PLANT SCIENCE
	2015-11-10
卷号	6 页码:14
关键词	bermudagrass drought stress tolerance sumbergence stress Proteomic analysis reactive oxygen species carbohydrate metabolism
ISSN号	1664-462X
DOI	10.3389/fpls.2015.00951
英文摘要	In this study, we investigated the mechanisms by which bermudagrass withstands the drought and submergence stresses through physiological, proteomic and metabolomic approaches. The results showed that significant physiological changes were observed after drought treatment, while only slight changes after submergence treatment, including compatible solute contents, ROS levels and antioxidant enzyme activities. Proteomics results showed that 81 proteins regulated by drought or submergence treatment were identified by MALDI-TOF-MS. Among them, 76 proteins were modulated by drought stress with 46 increased abundance and 30 decreased abundance. Forty-five showed abundance changes after submergence treatment with 10 increased and 35 decreased. Pathway enrichment analysis revealed that pathways of amino acid metabolism and mitochondrial electron transport/ATP synthesis were only enriched by drought treatment, while other pathways including photosynthesis, biodegradation of xenobiotics, oxidative pentose phosphate, glycolysis and redox were commonly over represented after both drought and submergence treatments. Metabolomic analysis indicated that most of the metabolites were up-regulated by drought stress, while 34 of 40 metabolites contents exhibited down-regulation or no significant changes when exposed to submergence stress, including sugars and sugar alcohols. These data indicated that drought stress extensively promoted photosynthesis and redox metabolisms while submergence stress caused declined metabolisms and dormancy in Cynodon dactylon. Taken together, the quiescence strategy with retarded growth might allow bermudagrass to be adaptive to long-term submerged environment, while activation of photosynthesis and redox, and accumulation of compatible solutes and molecular chaperones increased bermudagrass tolerance to drought stress.
资助项目	Hundred Talents Program ; Knowledge Innovative Key Program of Chinese Academy of Sciences[Y154761O01076] ; Knowledge Innovative Key Program of Chinese Academy of Sciences[Y329631O0263]
WOS研究方向	Plant Sciences
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000366211100001
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/179]
专题	中国科学院武汉植物园
通讯作者	Chan, Zhulong
作者单位	1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Plant Germplasm Enhancement & Specialty A, Wuhan, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ye, Tiantian,Shi, Haitao,Wang, Yanping,et al. Contrasting Changes Caused by Drought and Submergence Stresses in Bermudagrass (Cynodon dactylon)[J]. FRONTIERS IN PLANT SCIENCE,2015,6:14.
APA	Ye, Tiantian,Shi, Haitao,Wang, Yanping,&Chan, Zhulong.(2015).Contrasting Changes Caused by Drought and Submergence Stresses in Bermudagrass (Cynodon dactylon).FRONTIERS IN PLANT SCIENCE,6,14.
MLA	Ye, Tiantian,et al."Contrasting Changes Caused by Drought and Submergence Stresses in Bermudagrass (Cynodon dactylon)".FRONTIERS IN PLANT SCIENCE 6(2015):14.