Effects of cadmium stress on growth and anti-oxidative systems in Achnatherum inebrians symbiotic with Neotyphodium gansuense

Zhang, Xingxu; Li, Chunjie; Zhang, Nan

doi:10.1016/j.jhazmat.2009.10.066

Cited by 140 publications

(70 citation statements)

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“…Cadmium can interfere with numerous biochemical and physiological processes, including photosynthesis, respiration and protein metabolism (Zhang et al, 2010). Negative effects on protein activity, such as the photosystem I assembly protein ycf3 (spots 50 and 55), photosystem Q(B) protein (spot 16), NAD(P)H-quinone oxidoreductase subunit 3, chloroplastic (spots 22, 56, 57, 75, and 163), and cytochrome b6-f complex subunit 4 (spot 54), compromised the performance of photosynthetic activity.…”

Section: Resultsmentioning

confidence: 99%

“…Negative effects on protein activity, such as the photosystem I assembly protein ycf3 (spots 50 and 55), photosystem Q(B) protein (spot 16), NAD(P)H-quinone oxidoreductase subunit 3, chloroplastic (spots 22, 56, 57, 75, and 163), and cytochrome b6-f complex subunit 4 (spot 54), compromised the performance of photosynthetic activity. Reduction in net photosynthetic rate is one of the factors that cause a decrease in growth and productivity in plants ( MacFarlane and Burchett, 2001;Almeida et al, 2007;Zhang et al, 2010). There may be changes in the growth of shoots and roots and in chlorophyll biosynthesis, lower rates of transpiration, photosynthesis and stomatal conductance, induction of premature senescence of leaves, and leaf chlorosis (Clemens, 2006).…”

Section: Resultsmentioning

confidence: 99%

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Changes in protein profile detected in seedlings of Caesalpinia peltophoroides (Fabaceae) after exposure to high concentration of cadmium

Gomes¹,

Gesteira²,

Almeida³

et al. 2012

Genet. Mol. Res.

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ABSTRACT. Sibipiruna (Caesalpinia peltophoroides Benth) is a tree of the Brazilian Atlantic Forest. It is a flowering ornamental tree widely planted throughout Brazil and indicated for restoration of degraded areas. We examined protein profile changes in leaves of seedlings of C. peltophoroides grown in nutrient solution under greenhouse conditions, after exposure to cadmium (Cd; 32 mg/L). A two-dimensional gel was used to analyze proteins expressed in response to stress 24 and 72 h after initiation of treatment with Cd. Various protein bands were identified that were related to stress response and/or metabolic adjustments, including proteins involved with resistance to stress, including detoxification, degradation, antioxidant, transport, signal transduction, photosynthesis, electron transport, biosynthesis reactions, and ©FUNPEC-RP www.funpecrp.com.br Genetics and Molecular Research 11 (3): 2694-2707 (2012) Effect of cadmium on protein profile of C. peltophoroides 2695 transcription regulation. After 24 h of Cd exposure, the genes of most of these proteins were upregulated. These putative proteins were associated with resistance to stress, including heat shock proteins, heat stress transcriptional factor and other transcriptional factors, aquaporins, glutathione transferase and choline monooxygenase. Most of the putative proteins observed after 72 h of exposure to Cd were downregulated. They were mainly photosynthetic process proteins, such as NAD(P)H-quinone oxidoreductase, photosystem I assembly, and photosystem II CP47 chlorophyll apoprotein. There were also proteins involved with degradation, biosynthesis and antioxidant activity, such as ATP-dependent Clp protease, methylthioribose-1-phosphate and glutathione peroxidase 2. Based on preliminary proteomic analysis, we conclude that proteins related to photosynthetic activity are inhibited, decreasing plant performance under stress conditions and that several proteins related to defense mechanisms are activated, inducing the plant defense response.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Changes in protein profile detected in seedlings of Caesalpinia peltophoroides (Fabaceae) after exposure to high concentration of cadmium

Gomes¹,

Gesteira²,

Almeida³

et al. 2012

Genet. Mol. Res.

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“…A wide range of cellular responses occur when plants are exposed to a variety of environmental stresses such as Cd toxicity (Szollosi et al 2009). Studies on Cd accumulation and their effects on plants revealed that they are strongly phytotoxic, causing growth inhibition (Zhang et al 2010). Cd toxicity in both animals and plants is due to the pro-oxidative effect (Rauser & Meuwly 1995;Stochs & Bagchi 1995).…”

Section: Discussionmentioning

confidence: 99%

“…Cd is not active redox but contributes indirectly to oxidative stress by affecting the cellular thiol redox balance (Stochs & Bagchi 1995). As Cd generates an oxidative stress, we have highlighted the disturbance of some enzymes involved directly or indirectly in the antioxidative cellular mechanisms (Smeets et al 2009;Sobrino-Plata et al 2009;Szollosi et al 2009;Zhang et al 2010). All analyzed GPOX, as well as ÁSHNP, were present in dry pea seeds which allowed the antioxidative machinery to be active as soon as the enzymes were reactivated by seed imbibitions (Figures 6 and 7).…”

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confidence: 88%

Role for plant peroxiredoxin in cadmium chelation

Smiri

Jelali

Ghoul

2013

Journal of Plant Interactions

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Studies on heavy metal underline the role of thiols in plants and attribute tolerance to metal binding. The thiol and peroxiredoxins (Prx) contents and guaiacol peroxidase (GPOX) activity were analyzed in the cotyledons and embryo of pea (Pisum sativum L.) germinating seeds exposed to toxic Cd concentration. The 2-cysteine peroxiredoxin (2Cys-Prx) level as well as the non-protein thiol (ÁSHNP) pool increased in both tissues treated with Cd compared to the control. An oxidized dimer of 2Cys-Prx was resolved in the presence of Cd ions. The obtained results suggest that Prx constitute a main key target in Cd toxicity. Despite of the decrease in GPOX activity due to the generation of an intracellular oxidative stress, a protective action via increasing Prx expression on thiols is possible to improve the redox status.

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“…Lipid Peroxidation-The level of lipid peroxidation in sorghum leaves was determined as the amount of 2-thiobarbituric acidreactive substances (TBARS) mainly malondialdehyde (MDA) content formed as described 25 . 1g leaves were homogenized in 5ml 0.1% trichloroacetic acid (TCA) and centrifuged at 10,000 rpm for 10 min at 4°C.…”

Section: Other Estimationsmentioning

confidence: 99%

Modulation of Antioxidant Enzymes System by Kinetin in Salt Stressed Shoots of Zea Mays

Govinda¹,

Sharma²,

Singh³

et al. 2017

Int. Res. J. Pharm.

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The antioxidant enzymes system in the shoot of the Zea mays was checked in the laboratory. The seeds Soil culture of Zea mays (cv. African Tall-09) were purchased from the local market and sterilized properly. The growth was done for five days and treated by two NaCl (100mM and 200mM) levels, two kinetin (2µM and 5µM) levels and their respective combinations. The enzymatic assays of key antioxidant enzymes i.e. catalase, guaiacol peroxidase (GPX), ascorbate peroxidase, superoxide dismutase and glutathione reductase (GR) in maize leaves were done. The assessment of important metabolic parameters i.e. lipid peroxidation, non-protein thiol levels and proline content in maize leaves was also performed. The activity of catalase was very strongly responsive for kinetin and increased its activity at both the levels. The activity of GR was also inhibited in case of salt and kinetin grouping of lower concentration level. The GPX activity was inhibited by 100 and 200mM of NaCl levels in external medium but stimulated by 5µM Kinetin level alone as well as in high amount salt combination levels while superoxide dismutase of Zea mays shoots was stimulated and showed noteworthy gain were shown in response to 200mM NaCl level as well as kinetin levels. The lower combina tion of both salt and kinetin suppressed the activity of ascorbate peroxidise while the lipid peroxidation and proline content were increased by both the salt treatments.

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Effects of cadmium stress on growth and anti-oxidative systems in Achnatherum inebrians symbiotic with Neotyphodium gansuense

Cited by 140 publications

References 35 publications

Changes in protein profile detected in seedlings of Caesalpinia peltophoroides (Fabaceae) after exposure to high concentration of cadmium

Changes in protein profile detected in seedlings of Caesalpinia peltophoroides (Fabaceae) after exposure to high concentration of cadmium

Role for plant peroxiredoxin in cadmium chelation

Modulation of Antioxidant Enzymes System by Kinetin in Salt Stressed Shoots of Zea Mays

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