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한국식물학회 / v.51, no.6, 2008년, pp.395-400 
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( Production of Nitric Oxide under Ultraviolet-B Irradiation is Mediated by Hydrogen Peroxide through Activation of Nitric Oxide Synthase ) |
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| 초 록 |
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| Excised leaves of kidney bean (Phaseolus vulgaris) were used to investigate the mechanism of NO generation under UV-B stress. We showed that two signaling molecules, NO and $H_2O_2$, were produced in the irradiated leaves. NO release was blocked by LNNA, an inhibitor of NOS. Application of CAT (EC 1.11.1.6) not only effectively eliminated $H_2O_2$ in the leaves, but also inhibited the activity of NOS and the emission of NO. In contrast, treatment with exogenous $H_2O_2$ increased both of those events. Therefore, we suggest that, under UV-B stress, NO production is mediated by $H_2O_2$ through greater NOS activity. |
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| 키워드 |
| catalase;hydrogen peroxide;nitric oxide;nitric oxide synthase;ultraviolet B; |
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Journal of Plant Biology / v.51, no.6, 2008년, pp.395-400
한국식물학회
ISSN : 1226-9239
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200812651529940)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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