Alleviation of cold damage to photosystem II and metabolisms by melatonin in Bermudagrass

doi:10.3389/fpls.2015.00925

CORC > 武汉植物园 > 中国科学院武汉植物园

	Alleviation of cold damage to photosystem II and metabolisms by melatonin in Bermudagrass
	Fan, Jibiao 1,2; Hu, Zhengrong 1,2; Xie, Yan 1; Chan, Zhulong 1; Chen, Ke 1; Amombo, Erick 1,2; Chen, Liang 1; Fu, Jinmin 1
刊名	FRONTIERS IN PLANT SCIENCE
	2015-11-03
卷号	6 页码:14
关键词	melatonin bermudagrass cold stress photosystem II metabolism
ISSN号	1664-462X
DOI	10.3389/fpls.2015.00925
英文摘要	As a typical warm season grass, Bermudagrass [Cynodon dactylon (L).Pers.] is widely applied in turf systems and animal husbandry. However, cold temperature is a key factor limiting resource utilization for Bermudagrass. Therefore, it is relevant to study the mechanisms by which Burmudagrass responds to cold. Melatonin is a crucial animal and plant hormone that is responsible for plant abiotic stress responses. The objective of this study was to investigate the role of melatonin in cold stress response of Bermudagrass. Wild Bermudagrass pre-treated with 100 ILM melatonin was subjected to different cold stress treatments (-5 degrees C for 8h with or without cold acclimation). The results showed lower malondialdehyde (MDA) and electrolyte leakage (EL) values, higher levels of chlorophyll, and greater superoxide dismutase and peroxidase activities after melatonin treatment than those in non-melatonin treatment under cold stress. Analysis of chlorophyll a revealed that the chlorophyll fluorescence transient (OJIP) curves were higher after treatment with melatonin than that of non-melatonin treated plants under cold stress. The values of photosynthetic fluorescence parameters increased after treatment with melatonin under cold stress. The analysis of metabolism showed alterations in 46 metabolites in cold stressed plants after melatonin treatment. Among the measured metabolites, five sugars (arabinose, mannose, glucopyranose, maltose, and turanose) and one organic acid (propanoic acid) were significantly increased. However, valine and threonic acid contents were reduced in melatonin-treated plants. In summary, melatonin maintained cell membrane stability, increased antioxidant enzymes activities, improved the process of photosystem II, and induced alterations in Bermudagrass metabolism under cold stress.
资助项目	China National Science Foundation (NSFC)[31401915] ; China National Science Foundation (NSFC)[31272194] ; China-Africa Center for Research and Education[SAJC201325] ; Hubei Province National Science Foundation Sciences[ZRY1326] ; outstanding young talent program of CAS Key Laboratory of Plant: Germplasm Enhancement: and Specialty Agriculture[Y452341X01]
WOS研究方向	Plant Sciences
语种	英语
出版者	FRONTIERS MEDIA SA
WOS记录号	WOS:000364579600001
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/180]
专题	中国科学院武汉植物园
通讯作者	Chen, Liang
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, Coll Life Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Fan, Jibiao,Hu, Zhengrong,Xie, Yan,et al. Alleviation of cold damage to photosystem II and metabolisms by melatonin in Bermudagrass[J]. FRONTIERS IN PLANT SCIENCE,2015,6:14.
APA	Fan, Jibiao.,Hu, Zhengrong.,Xie, Yan.,Chan, Zhulong.,Chen, Ke.,...&Fu, Jinmin.(2015).Alleviation of cold damage to photosystem II and metabolisms by melatonin in Bermudagrass.FRONTIERS IN PLANT SCIENCE,6,14.
MLA	Fan, Jibiao,et al."Alleviation of cold damage to photosystem II and metabolisms by melatonin in Bermudagrass".FRONTIERS IN PLANT SCIENCE 6(2015):14.