Effects of exogenous nitric oxide on cadmium toxicity, element contents and antioxidative system in perennial ryegrass

被引:0
|
作者
Quanhui Wang
Xue Liang
Yuanjie Dong
Linlin Xu
Xiuwei Zhang
Jun Hou
Zhenyi Fan
机构
[1] Shandong Agricultural University,College of Resources and Environment
[2] Chinese National Engineering Research Center for Slow/Controlled Release Fertilizers,undefined
来源
Plant Growth Regulation | 2013年 / 69卷
关键词
Antioxidative enzyme; Cd stress; L.; Mineral content; SNP;
D O I
暂无
中图分类号
学科分类号
摘要
The effects of sodium nitroprusside (SNP, a donor of NO) on cadmium (Cd) toxicity in ryegrass seedlings (Lolium perenne L.) were studied by investigating the symptoms, plant growth, chlorophyll content, lipid peroxidation, H+-ATPase enzyme and antioxidative enzymes. Addition of 100 μM CdCl2 caused serious chlorosis and inhibited the growth of ryegrass seedlings, and dramatically increased accumulation of Cd in both shoots and roots, furthermore, the absorption of macro and micronutrients were inhibited. Addition of 50, 100, 200 μM SNP significantly decreased the transport of Cd from roots to shoots, alleviated the inhibition of K, Ca, Mg and Fe, Cu, Zn absorption induced by Cd, reduced the toxicity symptoms and promoted the plant growth. The accumulation of reactive oxygen species (ROS) significantly increased in ryegrass seedlings exposed to Cd, and resulted in the lipid peroxidation, which was indicated by accumulated concentration of thiobarbituric acid-reactive substances. Addition of 50, 100, 200 μM SNP significantly decreased the level of ROS and lipid peroxidation. Activities of antioxidant enzymes also showed the same changes. Addition of 50, 100, 200 μM SNP increased activities of superoxide dismutase, peroxidase, catalase and ascorbate peroxidase in ryegrass seedlings exposed to Cd. Addition of 100 μM SNP had the most significant alleviating effect against Cd toxicity while the addition of 400 μM SNP had no significant effect with Cd treatment.
引用
收藏
页码:11 / 20
页数:9
相关论文
共 50 条
  • [21] Antioxidative effects of exogenous nitric oxide versus antioxidant vitamins on renal ischemia reperfusion injury
    Dogan Unal
    Ercan Yeni
    Ozcan Erel
    Muharrem Bitiren
    Huseyin Vural
    Urological Research, 2002, 30 : 190 - 194
  • [22] Exogenous nitric oxide enhances cadmium tolerance of rice by increasing pectin and hemicellulose contents in root cell wall
    Jie Xiong
    Lingyao An
    Han Lu
    Cheng Zhu
    Planta, 2009, 230 : 755 - 765
  • [23] Exogenous nitric oxide enhances cadmium tolerance of rice by increasing pectin and hemicellulose contents in root cell wall
    Xiong, Jie
    An, Lingyao
    Lu, Han
    Zhu, Cheng
    PLANTA, 2009, 230 (04) : 755 - 765
  • [24] Differential tolerance to Mn toxicity in perennial ryegrass genotypes: involvement of antioxidative enzymes and root exudation of carboxylates
    Mora, Maria de la Luz
    Rosas, Anali
    Ribera, Alejandra
    Rengel, Zed
    PLANT AND SOIL, 2009, 320 (1-2) : 79 - 89
  • [25] Differential tolerance to Mn toxicity in perennial ryegrass genotypes: involvement of antioxidative enzymes and root exudation of carboxylates
    María de la Luz Mora
    Analí Rosas
    Alejandra Ribera
    Zed Rengel
    Plant and Soil, 2009, 320 : 79 - 89
  • [26] Effects of exogenous nitric oxide on photosynthesis
    Prochazkova, D.
    Haisel, D.
    Wilhelmova, N.
    Pavlikova, D.
    Szakova, J.
    PHOTOSYNTHETICA, 2013, 51 (04) : 483 - 489
  • [27] Exogenous calcium oxide nanoparticles alleviate cadmium toxicity by reducing Cd uptake and enhancing antioxidative capacity in barley seedlings
    Nazir, Muhammad Mudassir
    Noman, Muhammad
    Ahmed, Temoor
    Ali, Shafaqat
    Ulhassan, Zaid
    Zeng, Fanrong
    Zhang, Guoping
    JOURNAL OF HAZARDOUS MATERIALS, 2022, 438
  • [28] Exogenous nitric oxide on antioxidative system and ATPase activities from tomato seedlings under copper stress
    Zhang, Yikai
    Han, Xiaojiao
    Chen, Xiuling
    Jin, Hong
    Cui, Xiumin
    SCIENTIA HORTICULTURAE, 2009, 123 (02) : 217 - 223
  • [29] Alleviating effects of exogenous nitric oxide donor sodium nitroprusside on selenium toxicity in rice
    Dai, Z. H.
    Tu, S. X.
    SELENIUM RESEARCH FOR ENVIRONMENT AND HUMAN HEALTH: PERSPECTIVES, TECHNOLOGIES AND ADVANCEMENTS, 2020, : 129 - 130
  • [30] Exogenous nitric oxide improves antioxidative capacity and reduces auxin degradation in roots of Medicago truncatula seedlings under cadmium stress
    Jin Xu
    Wenying Wang
    Hengxia Yin
    Xiaojing Liu
    Hong Sun
    Qin Mi
    Plant and Soil, 2010, 326 : 321 - 330