Antioxidant Enzyme Activities as Biomarkers of Cu and Pb Stress in Centella asiatica

Yap, Chee Kong; Tan, Wen Siang; Wong, Koe Wei; Ong, Ghim Hock; Cheng, Wan Hee; Nulit, Rosimah; Ibrahim, Mohd Hafiz; Chew, Weiyun; Edward, Franklin Berandah; Okamura, Hideo; Al-Mutairi, Khalid Awadh; Al‐Shami, Salman Abdo; Sharifinia, Moslem; Mustafa, Muskhazli; Leong, Wah June; You, Chen Feng

doi:10.3390/stresses1040018

Cited by 16 publications

(8 citation statements)

References 34 publications

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“…Other researchers have also reported similar findings. Yap et al (2021) observed elevated antioxidant SOD in plants exposed to the metal copper. Benhamdi et al (2021) also reported results with similar trends to our findings.…”

Section: Discussionmentioning

confidence: 94%

A comparison of selected heavy metals in soils mixed with domestic and industrial sludges and assessment of effects of the sludge pollutants on oxidative stress markers of the African kale (Brassica oleracea var acephala) grown using sewage sludge manure

Basopo¹,

Donald²,

Rumbidzai³

2022

Afr. J. Environ. Sci. Technol.

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Sewage sludge is used as fertiliser and contains nutrients required for plant growth. It also contains contaminants that can leach into crops. The effects of sewage sludge on kale plants were investigated. Mixture ratios of 50:50 and 20:80 for soil and sludge were prepared. The soil-sludge blends were analysed for selected metal residues. Kale seedlings of 10-13 cm were planted on the different soilsludge combinations. Leaf lengths were measured 21 days post transplanting for four weeks. After sixty days, the leaves were analysed for metal residue levels and antioxidant enzyme activities. The results showed higher metal concentrations in soil blended with industrial sludge than in soil mixed with domestic sludge. The highest growth of plants was observed after 28 days in plants grown on 50% soil-industrial sludge mixtures. Superoxide dismutase and glutathione peroxidase activities were higher in plants grown on soil applied with sewage sludge when compared to enzyme activities in plants grown on sludge-free soil. The high levels of metals and enhanced antioxidant enzyme activity observed were attributed to the contaminants in the sewage sludge. Preassessment of sewage sludge to be used as soil manure is recommended to safeguard the health of plants and, indirectly, humans who consume the crops.

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Section: Discussionmentioning

confidence: 94%

A comparison of selected heavy metals in soils mixed with domestic and industrial sludges and assessment of effects of the sludge pollutants on oxidative stress markers of the African kale (Brassica oleracea var acephala) grown using sewage sludge manure

Basopo¹,

Donald²,

Rumbidzai³

2022

Afr. J. Environ. Sci. Technol.

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“…These BSAF findings suggest that C. Obtusa shells accumulate more Cu and Cd from environmental sediments compared to soft tissues and shells. The discrepancy in results can be attributed to species digestion physiology and metal absorption rates [ 28 , 29 , 31 , 32 ].…”

Section: Resultsmentioning

confidence: 99%

Utilizing mollusk soft tissue and shells as biomarkers for monitoring heavy metal pollution in mangrove forests

Kumar¹,

Saion²,

Halimah³

et al. 2023

MethodsX

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“…In our study, APX, CAT, and SOD enzymatic activities in roots were higher compared to activity in leaves. Similarly, a study with Centella asiatica plants subjected to Pb stress conditions showed higher activities of GPX, APX, and CAT in the roots than in the leaves [87]. The difference in enzyme activities between the leaf and the root may be due to the fact that the contaminant comes into natural contact with the radical system, and this system activates a rapid response as protection against oxidative stress [88].…”

Section: Impact Of As and Sio 2 Nps On Antioxidant Systemmentioning

confidence: 97%

Effect of Silicon Nanoparticles on Tomato Plants Exposed to Two Forms of Inorganic Arsenic

et al. 2022

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In the environment arsenic (As) can be found mainly as arsenite (AsIII) and arsenate (AsV), which are highly toxic and threaten food security. Currently, there is great attention on the effects of silicon dioxide nanoparticles (SiO2 NPs) on plant development, and their ability to restrict As uptake. The results show that the two forms of As negatively impacted aerial dry biomass and fruit yield. Silicon content is lower in roots than in leaves. It is observed that AsIII is the form that accumulates the most in the root; in addition, the SiO2 NPs reduce the translocation of AsV. The data show that AsIII induced a negative effect on the uptake of Ca, P, Mg, and Cu, while SiO2 NPs enhances the accumulation of Fe and Zn when exposed to AsIII. The two forms of As do not impact chlorophyll content but increases when interacting with SiO2 NPs. Antioxidant enzymes APX, CAT, and SOD are higher in roots than in leaves. Phenols, flavonoids, and glutathione increased when SiO2 NPs interacted with AsIII in roots. H2O2 increases in roots and leaves by exposure to AsV and AsIII, and its interactions with SiO2 NPs, while in the fruit, H2O2 production decreases. As for the total antioxidant capacity ABTS is observed to increase by AsIII + SiO2 NPs only in roots. The bioactive compounds of the tomato fruits are modified by the treatments and the addition of SiO2 NPs alone increase in lycopene content. Therefore, our results reveal the negative impacts of AsIII, and that SiO2 NPs can at least partially mitigate As toxicity and reduce AsV translocation in tomatoes.

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Antioxidant Enzyme Activities as Biomarkers of Cu and Pb Stress in Centella asiatica

Cited by 16 publications

References 34 publications

A comparison of selected heavy metals in soils mixed with domestic and industrial sludges and assessment of effects of the sludge pollutants on oxidative stress markers of the African kale (Brassica oleracea var acephala) grown using sewage sludge manure

A comparison of selected heavy metals in soils mixed with domestic and industrial sludges and assessment of effects of the sludge pollutants on oxidative stress markers of the African kale (Brassica oleracea var acephala) grown using sewage sludge manure

Utilizing mollusk soft tissue and shells as biomarkers for monitoring heavy metal pollution in mangrove forests

Effect of Silicon Nanoparticles on Tomato Plants Exposed to Two Forms of Inorganic Arsenic

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