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Nitric oxide functions as a signal in salt resistance in the calluses from two ecotypes of reed
Zhao, LQ; Zhang, F; Guo, JK; Yang, YL; Li, BB; Zhang, LX; Zhang, LX (reprint author), Lanzhou Univ, Sch Life Sci, State Key Lab Arid Agroecol, Lanzhou 730000, Peoples R China.
Indexed BySCIE ; EI ; PubMed ; MEDLINE ; BIOSIS
2004-02
Source PublicationPLANT PHYSIOLOGY
ISSN0032-0889
Volume134Issue:2Pages:849-857
AbstractCalluses from two ecotypes of reed (Phragmites communis Trin.) plant (dune reed [DR] and swamp reed [SR]), which show different sensitivity to salinity, were used to study plant adaptations to salt stress. Under 200 mm NaCl treatment, the sodium (Na) percentage decreased, but the calcium percentage and the potassium (K) to Na ratio increased in the DR callus, whereas an opposite changing pattern was observed in the SR callus. Application of sodium nitroprusside (SNP), as a nitric oxide (NO) donor, revealed that NO affected element ratios in both DR and SR calluses in a concentration-dependent manner. N-omega-nitro-L-arginine (an NO synthase inhibitor) and 2-phenyl-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxyde (a specific NO scavenger) counteracted NO effect by increasing the Na percentage, decreasing the calcium percentage and the K to Na ratio. The increased activity of plasma membrane (PM) H+-ATPase caused by NaCl treatment in the DR callus was reversed by treatment with N-omega-nitro-L-arginine and 2-phenyl-4,4,5,5-tetramethyl-imidazoline-1-oxyl-3-oxyde. Western-blot analysis demonstrated that NO stimulated the expression of PM H+-ATPase in both DR and SR calluses. These results indicate that NO serves as a signal in inducing salt resistance by increasing the K to Na ratio, which is dependent on the increased PM H+-ATPase activity.
Subject AreaPlant Sciences
PublisherAMER SOC PLANT BIOLOGISTS
Publication PlaceROCKVILLE
DOI10.1104/pp.103.030023
First Inst
Language英语
SubtypeArticle
WOS IDWOS:000189108100029
EI ID2004118055998
PMID 14739346
BIOSIS IDBIOSIS:PREV200400220681
DepartmentLanzhou Univ, Sch Life Sci, State Key Lab Arid Agroecol, Lanzhou 730000, Peoples R China;
Chinese Acad Sci, Environm & Engn Inst Cold & Arid Reg, Lanzhou 730000, Peoples R China
Citation statistics
Cited Times:283[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lzu.edu.cn/handle/262010/114132
Collection生命科学学院
Corresponding AuthorZhang, LX (reprint author), Lanzhou Univ, Sch Life Sci, State Key Lab Arid Agroecol, Lanzhou 730000, Peoples R China.
Recommended Citation
GB/T 7714
Zhao, LQ,Zhang, F,Guo, JK,et al. Nitric oxide functions as a signal in salt resistance in the calluses from two ecotypes of reed[J]. PLANT PHYSIOLOGY,2004,134(2):849-857.
APA Zhao, LQ.,Zhang, F.,Guo, JK.,Yang, YL.,Li, BB.,...&Zhang, LX .(2004).Nitric oxide functions as a signal in salt resistance in the calluses from two ecotypes of reed.PLANT PHYSIOLOGY,134(2),849-857.
MLA Zhao, LQ,et al."Nitric oxide functions as a signal in salt resistance in the calluses from two ecotypes of reed".PLANT PHYSIOLOGY 134.2(2004):849-857.
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