干旱区生态环境知识资源中心(Arid): Gly Betaine Surpasses Melatonin to Improve Salt Tolerance in Dalbergia odorifera

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DOI	10.3389/fpls.2021.588847
	Gly Betaine Surpasses Melatonin to Improve Salt Tolerance in Dalbergia odorifera
	Cisse, El Hadji Malick; Miao, Ling-Feng; Yang, Fan; Huang, Jin-Fu; Li, Da-Dong; Zhang, Juan
通讯作者	Yang, F (corresponding author), Hainan Univ, Sch Ecol & Environm Sci, Key Lab Agroforestry Environm Proc & Ecol Regulat, Ctr Ecoenvironm Restorat Engn Hainan Prov, Haikou, Hainan, Peoples R China.
来源期刊	FRONTIERS IN PLANT SCIENCE
ISSN	1664-462X
出版年	2021
卷号	12
英文摘要	Salinity is one of the most serious factors limiting plant growth which can provoke significant losses in agricultural crop production, particularly in arid and semi-arid areas. This study aimed to investigate whether melatonin (MT; 0.05 and 0.1 mM), which has pleiotropic roles, has a better effect than glycine betaine (GB; 10 and 50 mM) on providing salt tolerance in a woody plant Dalbergia odorifera T. Chen. Also, the alternative oxidase activity (AOX) in plant subjected to MT or GB under salinity (150 and 250 mM) was evaluated given that the effect of exogenous MT or GB on AOX has not been reported yet. The results showed that the exogenous application of GB on the seedlings of D. odorifera increased the plant growth parameters, relative water content, total of chlorophyll content, and carotenoid content compared with well-watered and MT treatments. Under severe salinity, the seedlings subjected to GB showed, a significant enhancement in water use efficiency, transpiration, and net photosynthetic rate regardless to MT-treated seedlings. The levels of proline and soluble sugar in the seedlings treated with MT or GB decreased significantly under mild and severe salinity correlated with those in salt-stressed seedlings. Furthermore, GB-treated plants exhibited a significant inhibition of malondialdehyde content compared with MT-treated plants. The concentration of thiols and phenolic compounds were significantly enhanced in the leaves of seedlings treated with MT compared with those treated with GB. Under salt stress condition, GB scavenged significantly higher levels of hydrogen peroxide than MT; while under severe salinity, plants subjected to MT showed better scavenging ability for hydroxyl radicals compared with GB-treated seedlings. The results demonstrated also an enhancement of the levels of superoxide dismutase (SOD), guaiacol peroxidase, and AOX activities in seedlings treated with GB or MT compared with salt-stressed plants. The catalase activity (CAT) was increased by 0.05 mM MT and 0.1 mM GB under mild salinity. Meanwhile, the AOX activity under severe salinity was enhanced only by GB 50 mM. The findings of this study suggested that GB-treated seedlings possessed a better salt tolerance in comparison with MT-treated seedlings.
英文关键词	alternative oxidase glycine betaine melatonin redox homeostasis salt tolerance
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000620566600001
WOS关键词	ANTIOXIDATIVE SYSTEM ; RESPONSES ; STRESS ; GLYCINEBETAINE ; SEEDLINGS ; SALINITY ; PROLINE ; ENZYMES ; GROWTH ; TISSUE
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347917
作者单位	[Cisse, El Hadji Malick; Miao, Ling-Feng; Yang, Fan; Huang, Jin-Fu; Li, Da-Dong; Zhang, Juan] Hainan Univ, Sch Ecol & Environm Sci, Key Lab Agroforestry Environm Proc & Ecol Regulat, Ctr Ecoenvironm Restorat Engn Hainan Prov, Haikou, Hainan, Peoples R China
推荐引用方式 GB/T 7714	Cisse, El Hadji Malick,Miao, Ling-Feng,Yang, Fan,et al. Gly Betaine Surpasses Melatonin to Improve Salt Tolerance in Dalbergia odorifera[J],2021,12.
APA	Cisse, El Hadji Malick,Miao, Ling-Feng,Yang, Fan,Huang, Jin-Fu,Li, Da-Dong,&Zhang, Juan.(2021).Gly Betaine Surpasses Melatonin to Improve Salt Tolerance in Dalbergia odorifera.FRONTIERS IN PLANT SCIENCE,12.
MLA	Cisse, El Hadji Malick,et al."Gly Betaine Surpasses Melatonin to Improve Salt Tolerance in Dalbergia odorifera".FRONTIERS IN PLANT SCIENCE 12(2021).