期刊
ANTIOXIDANTS
卷 10, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/antiox10121981
关键词
nitric oxide; bamboo species; lead (Pb); cadmium (Cd)
资金
- Nanjing Forestry University (Start-Up Research Fund)
- Jiangsu Agricultural Science and Technology Innovation Fund, [CX (18) 2031]
The study showed that nitric oxide (NO) can increase plant tolerance to heavy metal stress by enhancing antioxidant activities, limiting metal translocation, and reducing metal accumulation in the plant.
Recently, nitric oxide (NO) has been reported to increase plant resistance to heavy metal stress. In this regard, an in vitro tissue culture experiment was conducted to evaluate the role of the NO donor sodium nitroprusside (SNP) in the alleviation of heavy metal toxicity in a bamboo species (Arundinaria pygmaea) under lead (Pb) and cadmium (Cd) toxicity. The treatment included 200 mu mol of heavy metals (Pb and Cd) alone and in combination with 200 mu M SNP: NO donor, 0.1% Hb, bovine hemoglobin (NO scavenger), and 50 mu M L-NAME, N(G)-nitro-L-arginine methyl ester (NO synthase inhibitor) in four replications in comparison to controls. The results demonstrated that the addition of L-NAME and Hb as an NO synthase inhibitor and NO scavenger significantly increased oxidative stress and injured the cell membrane of the bamboo species. The addition of sodium nitroprusside (SNP) for NO synthesis increased antioxidant activity, protein content, photosynthetic properties, plant biomass, and plant growth under heavy metal (Pb and Cd) toxicity. It was concluded that NO can increase plant tolerance for metal toxicity with some key mechanisms, such as increasing antioxidant activities, limiting metal translocation from roots to shoots, and diminishing metal accumulation in the roots, shoots, and stems of bamboo species under heavy metal toxicity (Pb and Cd).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据