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	Cascade transduction and production of the light-nitric oxide signal from shoots to roots in maize seedlings exposed to enhanced UV-B radiation
	Zhang, Manxiao2,3; Liu, Guangxiu2; Chen, Tuo2; An, Lizhe1,2,3; Wang, Xunling1
刊名	ACTA PHYSIOLOGIAE PLANTARUM
	2009
卷号	31期号:1页码:175-185
关键词	Apoplast protein Cell wall beta-D-exo-and-endo-glucanase Nitrate reductase Nitric oxide Reactive oxygen species Root growth Signal molecule Ultraviolet-B
ISSN号	0137-5881
DOI	10.1007/s11738-008-0218-7
通讯作者	An, Lizhe(lizhean@lzu.edu.cn)
英文摘要	The biomasses, rate of apparent nitric oxide (NO)-release, nitric oxide synthase (NOS) activity as well as beta-d-endo and exo-glucanase activity of the cell wall were analyzed and determined in the roots of maize seedlings. It was found that rhizospheric treatments of 2-phenyl-4,4,5,5-tetramethlimida-zoline-l-oxyl-3-oxide (PTIO), a NO scavenger, and radiation of enhanced ultraviolet-B (UV-B) to aerial parts of the seedling markedly inhibited the rate of NO release in roots, raised the activity of beta-d-endo and exo-glucanase, and increased the biomasses of roots. The patent inhibitor, N-nitro-l-arginine (LNNA), of NOS was unable to inhibit NOS activity and NO generation. Inversely, reactive oxygen species (ROS) eliminator, N-acetyl-cysteine (NAC), stimulated the rate of NO release. There is no relationship between NOS activity and the rate of NO release. The latter showed a positive correlation with nitrate reductase (NR) activity, whereas it showed a negative correlation with the bio-masses and the activity of beta-d-endo and exo-glucanase. All results implicated that NO was a by-product generated by NR catalysis, whereas NR activity was sensitively repressed by the systemic signal network (involved in ROS) induced by enhanced UV-B. It indicated that the downstream signal molecule of enhanced UV-B light is probably ROS which decreased NO generation through inhibiting NR activity. The endogenous NO generated by NR catalysis is perhaps such a messenger for restraining beta-d-endo and exo-glucanase activity that the root growth was retarded.
收录类别	SCI
WOS关键词	STIMULATES SEED-GERMINATION ; NITRATE REDUCTASE ; ULTRAVIOLET-B ; PRODUCTION PATHWAY ; CELL-WALLS ; PLANTS ; GROWTH ; SYNTHASE ; NO ; ELONGATION
WOS研究方向	Plant Sciences
WOS类目	Plant Sciences
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000261936000022
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2556177
专题	寒区旱区环境与工程研究所
通讯作者	An, Lizhe
作者单位	1.Lanzhou Univ, Sch Life Sci, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 3.Lanzhou Petrochem Coll Technol, Lanzhou 730060, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Manxiao,Liu, Guangxiu,Chen, Tuo,et al. Cascade transduction and production of the light-nitric oxide signal from shoots to roots in maize seedlings exposed to enhanced UV-B radiation[J]. ACTA PHYSIOLOGIAE PLANTARUM,2009,31(1):175-185.
APA	Zhang, Manxiao,Liu, Guangxiu,Chen, Tuo,An, Lizhe,&Wang, Xunling.(2009).Cascade transduction and production of the light-nitric oxide signal from shoots to roots in maize seedlings exposed to enhanced UV-B radiation.ACTA PHYSIOLOGIAE PLANTARUM,31(1),175-185.
MLA	Zhang, Manxiao,et al."Cascade transduction and production of the light-nitric oxide signal from shoots to roots in maize seedlings exposed to enhanced UV-B radiation".ACTA PHYSIOLOGIAE PLANTARUM 31.1(2009):175-185.

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