CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis

doi:10.1139/cjps-2015-0385

	CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis
	Chen, Dong 2; Liu, Qiang 1,2; Chen, Yi-ping 2
刊名	CANADIAN JOURNAL OF PLANT SCIENCE
	2016-10-01
卷号	96 期号:5 页码:796-807
关键词	Triticum Aestivum Co2 Laser Chilling Stress No Signal Reactive Oxygen Species Stress Tolerance
DOI	10.1139/cjps-2015-0385
文献子类	Article
英文摘要	To investigate the mechanism by which laser irradiation enhances the chilling tolerance of wheat seedlings, seeds were exposed to different treatments, and biochemical parameters were measured. Compared with the control group, chilling stress (CS) led to an increase in the concentrations of malondialdehyde (MDA) and H2O2, and decreases in the activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), glutathione reductase (GR), catalase (CAT), peroxidase (POD), and nitric oxide synthase (NOS), and the concentrations of nitric oxide (NO) and protein. Treatment with 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide (PTIO), sodium tungstate (ST), and NG-nitro-L-arginine methyl ester (L-NAME) followed by CS resulted in further increases in the concentrations of MDA and H2O2 and further decreases in the other parameters. However, treatment with PTIO, ST, and L-NAME followed by laser irradiation had the opposite effects on these parameters. When the seeds were treated with PTIO, ST, and L-NAME followed by laser and CS, the concentrations of MDA and H2O2 were significantly lower and the other parameters were higher than in the PTIO, ST, and L-NAME plus CS groups. These results suggest that CO2 laser irradiation enhances the chilling tolerance of wheat seedlings by stimulating endogenous NO synthesis.
WOS关键词	NITRIC-OXIDE ; GLUTATHIONE-REDUCTASE ; SUPEROXIDE-DISMUTASE ; LASER IRRADIATION ; UV-B ; STRESS ; PEROXIDASE ; RESPONSES ; GROWTH ; PLANTS
WOS研究方向	Agriculture ; Plant Sciences
语种	英语
WOS记录号	WOS:000386571000011
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5651]
专题	地球环境研究所_生态环境研究室
作者单位	1.State Ocean Adm, Inst Oceanog 2, Key Lab Marine Ecosyst & Biogeochem, Hangzhou 310012, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian 710061, Peoples R China
推荐引用方式 GB/T 7714	Chen, Dong,Liu, Qiang,Chen, Yi-ping. CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis[J]. CANADIAN JOURNAL OF PLANT SCIENCE,2016,96(5):796-807.
APA	Chen, Dong,Liu, Qiang,&Chen, Yi-ping.(2016).CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis.CANADIAN JOURNAL OF PLANT SCIENCE,96(5),796-807.
MLA	Chen, Dong,et al."CO2 laser enhances the chilling tolerance of wheat seedlings by stimulating NO synthesis".CANADIAN JOURNAL OF PLANT SCIENCE 96.5(2016):796-807.