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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (36): 52-58.doi: 10.11924/j.issn.1000-6850.2012-4209

所属专题： 生物技术； 水稻

• 农学 农业基础科学 • 上一篇    下一篇

H2S对水稻幼苗形态及生理生化的影响

徐慧芳 陈桢雨 刘辉 孟丹   

  • 收稿日期:2013-01-02 修回日期:2013-02-22 出版日期:2013-12-25 发布日期:2013-12-25
  • 基金资助:
    国家高技术研究发展计划(863计划)“桉树、鹅掌楸转基因育种技术研究”;江苏省农业科技自主创新基金项目“洪泽湖生态区设施农业污染减控集成创新;江苏省高校自然科学研究计划项目“水稻抗冷候选基因OsICE1的功能与应用研究”;江苏省大学生实践创新训练计划“新型气体信号分子H2S在作物生长发育中的作用”

Effects of Exogenous Hydrogen Sulfide on the growth and physiology of rice seedlings

  • Received:2013-01-02 Revised:2013-02-22 Online:2013-12-25 Published:2013-12-25

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摘要： 为了探究外源H2S对水稻幼苗生长的影响，用含0 (ck)、0.1、0.2、0.4、0.8、1.6、3.2 mmol/L的硫化氢供体，硫氢化钠(hydrogen sulfide，NaHS)，处理水稻幼苗，研究水稻对不同浓度H2S生理生化响应并进行主成分分析(principal component analysis，PCA)。结果表明：较低浓度(0.1~0.8 mmol/L)硫氢化钠处理能显著促进幼苗生长，（包括株高、根长和生物量），增加叶绿素含量，促进净光合作用以及叶绿素光化学效率。同时，降低了幼苗叶片相对电渗率。然而，随着NaHS浓度的增加，水稻幼苗生长明显受到抑制。PCA分析表明处理组和对照间的明显差别，尤其是低浓度(0.1 ~ 0.8 mmol/L) NaHS处理组和对照，高浓度(1.6 ~ 3.2 mmol/L) NaHS处理组和对照之间呈现明显的变化。

关键词: 防控对策, 防控对策

Abstract: In order to investigate the effects of exogenous hydrogen sulfide on rice seedlings growth and development, rice seedlings was treated with different concentrations of NaHS (0.1、0.2、0.4、0.8、1.6、3.2 mmol/L) , a donor of H2S, to find out the responses on physiological and biochemical of rice seedlings and the analysis of principal component analysis (PCA). The results showed that rice seedlings treated with low concentration (0.1 ~ 0.8 mmol/L) NaHS exhibited a significant increase in seedling growth (including plant height, root length and biomass), chlorophyll content, net photosynthetic rate (Pn) and chlorophyll photochemical rate (Fv/Fm). And decreased relative electric permeability of leaves. However, with the increasing of concentration of NaHS, the growth of seedling significantly was suppressed. PCA analysis indicated a distinct separation between control and treated profiles, especially, low concentration (0.1 ~ 0.8 mmol/L) NaHS and the control, and high concentration (1.6 ~ 3.2 mmol/L) NaHS and the control.

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