Oxidative stress and change in plant metabolism of maize (Zea mays L.) growing in contaminated soil with elemental sulfur and toxic effect of zinc

Cui, Yan; Zhao, Nan

doi:10.17221/193/2010-pse

Cited by 42 publications

(14 citation statements)

References 17 publications

(24 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The changed activities of these antioxidant enzymes serve as the markers of oxidative stress [42]. The Zn 2+ -induced decline in CAT activity with concomitant increases in the activities of SOD, GPX, and APX have been reported in studies on duckweed [43] and maize [44]. Among the antioxidant enzymes, the first enzyme is CAT, which catalyzes the dismutation of two molecules of H 2 O 2 into water and oxygen, is very sensitive to O 2 •− , and is inactivated by the elevated levels of O 2 •− [45].…”

Section: Discussionmentioning

confidence: 99%

Green Synthesized Zinc Oxide (ZnO) Nanoparticles Induce Oxidative Stress and DNA Damage in Lathyrus sativus L. Root Bioassay System

et al. 2017

View full text Add to dashboard Cite

Zinc oxide nanoparticles (ZnONP-GS) were synthesised from the precursor zinc acetate (Zn(CH3COO)2) through the green route using the milky latex from milk weed (Calotropis gigantea L. R. Br) by alkaline precipitation. Formation of the ZnONP-GS was monitored by UV-visible spectroscopy followed by characterization and confirmation by energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), and X-ray diffraction (XRD). Both the ZnONP-GS and the commercially available ZnONP-S (Sigma-Aldrich) and cationic Zn2+ from Zn(CH3COO)2 were tested in a dose range of 0–100 mg·L−1 for their potency (i) to induce oxidative stress as measured by the generation reactive oxygen species (ROS: O2•−, H2O2 and •OH), cell death, and lipid peroxidation; (ii) to modulate the activities of antioxidant enzymes: catalase (CAT), superoxide dismutase (SOD), guaiacol peroxidase (GPX), and ascorbate peroxidase (APX); and (iii) to cause DNA damage as determined by Comet assay in Lathyrus sativus L. root bioassay system. Antioxidants such as Tiron and dimethylthiourea significantly attenuated the ZnONP-induced oxidative and DNA damage, suggesting the involvement of ROS therein. Our study demonstrated that both ZnONP-GS and ZnONP-S induced oxidative stress and DNA damage to a similar extent but were significantly less potent than Zn2+ alone.

show abstract

Section: Discussionmentioning

confidence: 99%

Green Synthesized Zinc Oxide (ZnO) Nanoparticles Induce Oxidative Stress and DNA Damage in Lathyrus sativus L. Root Bioassay System

et al. 2017

View full text Add to dashboard Cite

show abstract

“…However, the lack of variation in activity in roots suggesting that CAT appears not to be required for the elimination of H 2 O 2 , as it has been reported in rice plants [59]. These conflicting observations regarding CAT activity may be due to differences in the plant organs studied, plant growth conditions, and the exposure time to different concentrations of the metal used [60].…”

Section: Lipid Peroxidation and Responses Of Antioxidative Enzymes Tomentioning

confidence: 93%

Impact of dual inoculation with Rhizobium and PGPR on growth and antioxidant status of Vicia faba L. under copper stress

Fatnassi

Chiboub

Saadani

et al. 2015

Comptes Rendus. Biologies

View full text Add to dashboard Cite

Plant-growth-promoting bacteria (PGPR) may help reduce the toxicity of heavy metals in plants in polluted environments. In this work, the effects of dual inoculation with Rhizobium and PGPR strains on the growth of Vicia faba grown under copper stress were assessed during hydroponic culture. Growth parameters, copper (Cu) accumulation and antioxidant enzyme activities were studied. Copper concentrations above 1mM damaged plant growth, but co-inoculation reduced its harmful effect. Co-inoculation of plants treated with 1mM Cu and 2mM Cu increased the dry weights as compared with Cu-treated and uninoculated plants. However, it decreased copper uptake up to 80% in the roots of 1-mM-Cu-treated plants as compared to non-inoculated control. Copper tolerance in Vicia faba is linked to the activity of antioxidant systems that are modulated by metal concentrations: both superoxide dismutase (SOD) and catalase (CAT) were higher in the presence of Cu; a lower Cu dose of 0.5mM stimulated ascorbate peroxidase (APX) and/or peroxidase (POX) activities in shoots and roots; however in nodules CAT appeared to be the main peroxidase in H2O2 scavenging. The 1mM Cu treatment enhanced SOD, CAT and APX activities in roots and only SOD and POX were activated in shoots. All enzyme activities were inhibited by inoculation of 2mM Cu. The effect of inoculation with copper-accumulating PGPRs and the status of the antioxidant enzyme system were linked to changes in the copper tolerance status of Vicia faba. Our results suggested that Vicia faba inoculation with Rhizobium and PGPR Enterobacter clocae and Pseudomonas sp. could help to alleviate copper stress under hydroponic conditions. This result should be tested under field conditions for soil fertilization and phytostabilisation purposes.

show abstract

“…These results agree with the findings of Zengin & Munzuroglu (2005) who reported an increase in retinol, tocopherol and ascorbic acid content in vegetables due to exposure to heavy metals. Several researchers have reported a significant increase in the content of ascorbic acid which was activated by following the exposure of vegetables to heavy metal stress (Cui & Zhao, 2011;Kleckerova et al, 2011;Ivanov et al, 2012).…”

Section: Resultsmentioning

confidence: 99%

Effects of quarry mining activities on the nutritional composition of edible vegetables in Ishiagu, Ebonyi state, Nigeria

Osuocha¹,

Chukwu²,

Ugbogu³

et al. 2016

JEBAS

View full text Add to dashboard Cite

The study assessed the effects of quarry mining wastes on the nutritional composition of Cucurbita pepo (pumpkin), Cucumis sativus (cucumber) and Taliferia occidentalis (fluted pumpkin) using standard analytical methods. Nearby farmland soil receiving effluents from quarry operators were used for the study. The study covered wet and dry seasons. Water from hand dug wells in the mining area was used to irrigate farmland during the dry season. Results of study revealed a significant reduction in protein, lipid and carbohydrate content of vegetables grown in the area compared to the control (P<0.05). Further, vitamin composition of the selected vegetables significantly increased (P<0.05) in response to environmental stress compare to control. These results suggest contamination of farmlands in the study area by mine waste water and subsequent contaminant was also uptake by vegetables grown in such farmlands. Findings from this study imply that crop farming in the quarry environment and irrigation of farmlands with water from hand dug wells in the mining area should be discouraged. There is also a possibility of human ingestion of accumulated toxic contaminants such as heavy metals in vegetables if consumed.

show abstract

Oxidative stress and change in plant metabolism of maize (Zea mays L.) growing in contaminated soil with elemental sulfur and toxic effect of zinc

Cited by 42 publications

References 17 publications

Green Synthesized Zinc Oxide (ZnO) Nanoparticles Induce Oxidative Stress and DNA Damage in Lathyrus sativus L. Root Bioassay System

Green Synthesized Zinc Oxide (ZnO) Nanoparticles Induce Oxidative Stress and DNA Damage in Lathyrus sativus L. Root Bioassay System

Impact of dual inoculation with Rhizobium and PGPR on growth and antioxidant status of Vicia faba L. under copper stress

Effects of quarry mining activities on the nutritional composition of edible vegetables in Ishiagu, Ebonyi state, Nigeria

Contact Info

Product

Resources

About