The effect of exogenously applied nitric oxide on photosynthesis and antioxidant activity in heat stressed chrysanthemum

作者：Wanqin Yang, Yujun Sun, S. Chen, Jiafu Jiang, F. Chen, Weimin Fang, Zhaoyang Liu · 发表于：Biologia Plantarum · 年份：2011 · DOI：10.1007/s10535-011-0178-4 · 被引用次数：55 · 研究领域：Photosynthetic Processes and Mechanisms、Plant Stress Responses and Tolerance、Plant responses to water stress

The effect of exogenously applied nitric oxide on the heat tolerance of Chrysanthemum morifolium was investigated by applying the NO donor sodium nitroprusside (SNP). We found that the SNP partially alleviated the heat stress by slowing down the reduction of photosynthetic pigment content and net photosynthetic rate. SNP treatment also lowered the increase in the non-photochemical quenching of fluorescence and malondialdehyde content and maintained higher activities of superoxide dismutase, peroxidase, catalase and ascorbate peroxidase.