Genotype-Dependent Effect of Exogenous Nitric Oxide on Cd-induced Changes in Antioxidative Metabolism, Ultrastructure, and Photosynthetic Performance in Barley Seedlings (Hordeum vulgare)

Chen, Fei; Fang, Wang; Sun, Hongyan; Cai, Yue; Mao, Weihua; Zhang, Guoping; Vincze, Éva; Wu, Feibo

doi:10.1007/s00344-010-9151-2

Cited by 88 publications

(56 citation statements)

References 36 publications

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“…However, the inhibitory effects were significantly alleviated by exogenous NO, and the mitigation effect of NO on ryegrass under 150 μM Cd stress was greater than 100 μM Cd stress. The stimulation of plant growth by NO has also been reported in ryegrass , barley (Chen et al,2010) and peanut (Xu et al, 2014). The alleviation of Cd stress by NO may be related to increased chlorophyll content (Table 2), improved nutrient balance (Table 3) A notable reduction of chlorophyll parameters occurred in ryegrass seedlings exposed to 100 μM and 150 μM Cd stress (Table 2).…”

Section: Discussionmentioning

confidence: 88%

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

Chen

Dong

et al. 2018

J. Soil Sci. Plant Nutr.

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The effects of sodium nitroprusside (SNP, a donor of NO) on cadmium (Cd) toxicity in ryegrass seedlings (Lolium perenne L.) were studied. 100 and 150 μM Cd stress had a detrimental effect on ryegrass seedlings. Exposure of 100 and 150 μM Cd inhibited plant growth, decreased chlorophyll concentration, and reduced the absorption of Fe, Cu and Zn. Excess Cd also altered the activities of antioxidant enzymes, and increased the accumulation of reactive oxygen species (ROS). Exogenous NO alleviated Cd toxicity of ryegrass plants, especially under the stress of 150 μM Cd, as evidenced by improved plant growth and increased concentrations of chlorophyll and mineral nutrients. Exogenous NO also mitigated oxidative stress by regulating the activities of antioxidant enzymes and the contents of non-antioxidants. Moreover, the absorption of Fe, Cu and Zn was increased, indicating that exogenous NO stimulated H + -ATPase activity to promote sequestration or uptake of ions. The applications of NO also reduced the translocation of Cd from roots to the leaves. These results indicate that the mechanisms of NO for mitigating Cd toxicity may be associated with reduced root-to-shoot translocation of Cd and enhanced capacity of antioxidative systems to protect plants from oxidative stress.

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Section: Discussionmentioning

confidence: 88%

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

Chen

Dong

et al. 2018

J. Soil Sci. Plant Nutr.

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“…POD catalyzes H 2 O 2 -dependent oxidation of the substrate, while CAT eliminates H 2 O 2 by breaking it down directly to form water and oxygen (Ekmekçi et al, 2008). There is evidence that the combination of SOD, CAT and POD plays an important role in plants' resistance to environmental stress Shafi et al, 2009;Chen et al, 2010). In our study the activity of SOD, CAT and POD in roots and leaves under Cd stress was enhanced, indicating their active involvement in scavenging ROS generated by Cd toxicity.…”

Section: +mentioning

confidence: 99%

“…Cd is not an essential nutrient for plants, and it can accumulate at higher levels in aerial organs (Wang et al, 2007;Zou et al, 2008), inducing phytotoxicity manifested in leaf roll, chlorosis, growth reduction, and eventually death (Benavides et al, 2005;. It has been demonstrated that Cd affects a wide range of physiological and metabolic activities in plants: for example, Chl a and b content (Mobin and Khan, 2007), the activities of photosynthetic carbon reduction cycle enzymes (Burzyński and Zurek, 2007), mineral distribution (Wang et al, 2007;Zou et al, 2008), photosynthetic processes Chen et al, 2010) and oxidative stress Markovska et al, 2009). The intensity of the effects depends on the species, metal concentration and duration of exposure (Benavides et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Effects of Cadmium Stress on Root Tip Cells and Some Physiological Indexes in Allium Cepa Var. Agrogarum L.

Yue¹,

Jiang²,

Liu³

2012

Acta Biologica Cracoviensia Series Botanica

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“…Accumulation of NO in response to Cd has been observed in various plant species [43], however, its role is still debatable. The treatment with nitric oxide donor, SNP, caused attenuation of chlorophyll degradation and oxidative stress in plant exposed to Cd [44,45]. Nitric oxide also mediates induction of several signaling associated genes in response to short-term cadmium stress [46].…”

Section: Discussionmentioning

confidence: 99%

Effect of cobalt chloride on soybean seedlings subjected to cadmium stress

et al. 2014

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Contamination of the environment with heavy metals such as Cd is a serious problem of modern world. Exposure of plants to Cd leads to oxidative stress, inhibition of respiration and photosynthesis, increased rate of mutation and, as a consequence, stunted growth and yield decrease. One of the common reactions of plants to cadmium stress is over-production of ethylene, however the exact role of this hormone in plants response to Cd is still unrecognized. The aim of the present study is evaluation of the impact of an ethylene synthesis inhibitor, Co, on the response of soybean seedlings to cadmium stress. The experiments included measurements of growth, cell viability, ethylene production and expression of genes associated with cellular signaling in soybean seedlings exposed to CdCl 2 (with Cd in a concentration of 223 μM) and/or CoCl 2 (with Co in concentration of 4.6 μM). Surprisingly, the results show that Co has no effect on ethylene biosynthesis, however, it affects cell viability and expression of Cd-induced genes associated with plant signaling pathways. The affected genes encode mitogen-activated protein kinase kinase2 (MAPKK2), nitrate reductase and DOF1 and bZIP2 transcription factors. The role of Co in plants response to cadmium stress and its potential use as an ethylene inhibitor is discussed.

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Genotype-Dependent Effect of Exogenous Nitric Oxide on Cd-induced Changes in Antioxidative Metabolism, Ultrastructure, and Photosynthetic Performance in Barley Seedlings (Hordeum vulgare)

Cited by 88 publications

References 36 publications

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

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

Effects of Cadmium Stress on Root Tip Cells and Some Physiological Indexes in Allium Cepa Var. Agrogarum L.

Effect of cobalt chloride on soybean seedlings subjected to cadmium stress

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