Effects of Pb on the oxidative stress and antioxidant response in a Pb bioaccumulator plant Vallisneria natans

Wang, Peifang; Zhang, Songhe; Wang, Chao; Lu, Jie

doi:10.1016/j.ecoenv.2011.11.008

Cited by 83 publications

(42 citation statements)

References 35 publications

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“…A reduction in total chlorophyll content during Pb supply has been noticed in cucumber [32], radish [33] Populus [34] and Vallisneria natans [35]. In the present study, the reduction of total chlorophyll content was less in cultivar K6 suggesting the tolerance of cultivar K6 compared to cultivar K9.…”

Section: Effect Of Pb-stress On Chlorophyll Contentsupporting

confidence: 42%

Effect of Pb-Stress on Growth and Mineral Status of Two Groundnut (Arachis hypogaea L.) Cultivars

Nareshkumar¹,

Krishnappa²,

Kirankumar³

et al. 2014

JPS

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Abstract:Heavy metal pollution of air and agricultural soils is one of the most important ecological problems on world scale.Among the heavy metals, lead (Pb) is one of the common environmental pollutants. To investigate Pb effects on nutrient uptake, two groundnut (Arachis hypogaea L.) cultivars (cultivar K6 and cultivar K9) were grown in pot cultures and stressed with lead nitrate (Pb(NO 3 ) 2 ) at four concentrations (100, 200, 400 and 800 ppm). Pb is accumulated in roots and leaf tissues in dose dependent manner in both groundnut cultivars, which resulted in reduced root and shoot growth and lower uptake of all mineral ions tested. The content of mineral ions such as Ca, Na, Mg, Co, Cu, Ni, Zn and Mn reduced in root and leaf tissues of both cultivars due to Pb stress. But the reduction in mineral ion content was less in cultivar K6 than in cultivar K9. The deficiency of mineral nutrients correlates in a strong decrease in the contents of total chlorophyll, and anthocyanin in both cultivars, but these effects are less pronounced in cultivar K6 than in cultivar K9.

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Section: Effect Of Pb-stress On Chlorophyll Contentsupporting

confidence: 42%

Effect of Pb-Stress on Growth and Mineral Status of Two Groundnut (Arachis hypogaea L.) Cultivars

Nareshkumar¹,

Krishnappa²,

Kirankumar³

et al. 2014

JPS

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“…GSH is the direct precursor of phytochelatins (PCs) in a reaction catalyzed by phytochelatin synthase (PCS). It is known that the metal stress alleviates the depletion of GSH [60], and enhance PCs synthesis, resulting in an increased metal tolerance of plants [71]- [73]. Nouairi et al [71], reported that the level of PC-SH in tolerant plants was significantly increased under Cd stress in Brassica juncea.…”

Section: Discussionmentioning

confidence: 99%

“…Increased reactive oxygen species have been detected in the roots of maize and soybean [59], and in leaves of Vallisneria natans [60], Alocasia macrorrhiza [61] , which causes lipid peroxidation in plant cell [62]. MDA is a cytotoxic product of lipid peroxidation and an indicator of membrane damage from oxidative stress.…”

Section: Discussionmentioning

confidence: 99%

Pb-Stress Induced Oxidative Stress Caused Alterations in Antioxidant Efficacy in Two Groundnut (<i>Arachis hypogaea</i> L.) Cultivars

Nareshkumar¹,

Veeranagamallaiah²,

Pandurangaiah³

et al. 2015

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Lead (Pb) is an important environmental pollutant extremely toxic to plants and other living organisms including humans. To assess Pb phytotoxicity, a pot culture experiment was carried out using two groundnut cultivars (Arachis hypogaea L. cultivar K6 and cultivar K9) on plant growth, ROS levels, lipid peroxidation, and antioxidant metabolism using biochemical, histochemical methods. Plants were grown in pots for 14 days, in the botanic garden, and subjected to Pb-stress (0, 100, 200, 400 and 800 ppm) by adding Pb (NO3)2 solution and further allowed to grow for 10 days. The results showed that cultivar K6 registered lower Pb accumulation than cultivar K9, however, localization of Pb was greater in roots than leaves in both groundnut cultivars. The Pb-stress results in an increase in free radicals (O2• − and H2O2) generation in both groundnut cultivars, but more significantly in cultivar K9 than K6. Pb-stress also caused significant changes in the rate of peroxidation as shown in the levels of malondialdehyde (MDA) content in roots and leaves of both groundnut cultivars. Free proline, ascorbic acid (AsA) and non-protein thiol (NP-SH) contents were increased in cultivar K6 due to Pb-stress, but less in cultivar K9. Pb treated plants showed increased levels of antioxidant enzymes such as superoxide dismutase (SOD), guaiacol peroxidase (GPX), ascorbate peroxidase (APX) glutathione reductase (GR) and glutathione Stransferase (GST). Isozyme band intensities of SOD, GPX and APX were more consistent with the respective changes in antioxidative enzyme activities. These results indicate that cultivar K6 possesses greater tolerance potential for Pb toxicity than cultivar K9.

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“…Thus, they are not applicable for prevention and rehabilitation of eutrophication in large-scale water bodies [13][14][15][16]. Biological method is one of the most innovative technologies for environmental restoration in recent years, which has become a hotspot in the field of environment research [17][18][19][20][21][22]. Studies have shown that many kinds of aquatic plants have the ability to resist and control eutrophication, such as reed, Ceratophyllum demersum, Ruppia [4,[23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Allelopathy Inhibitory Effects of Hydrodictyon reticulatum on Chlorella pyrenoidosa under Co-Culture and Liquor-Cultured Conditions

Chen

Huang

et al. 2017

Water

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Eutrophication has become increasingly serious in recent years, which severely impairs the aquatic ecosystem. Applying environmentally-friendly methods to effectively control the growth of algae and avoid eutrophication has been proved to be a promising way. Thus, the potential of Hydrodictyon reticulatum on eutrophication control was studied in this research. The allelopathy inhibitory effects of H. reticulatum on the growth of Chlorella pyrenoidosa were investigated under both co-culture and liquor-cultured conditions. The biomass and chlorophyll a content of C. pyrenoidosa were determined with time during the experimental period. Nitrogen and phosphorus removal capacities of H. reticulatum were also examined. Results showed that the growth of C. pyrenoidosa was obviously inhibited under both co-culture and liquor-cultured conditions, and the "Hormesis effect" was patently observed. The strength of allelopathy inhibitory effect depended on the relative biomass between H. reticulatum and C. pyrenoidosa. The allelopathy inhibitory effect of H. reticulatum on C. pyrenoidosa under co-culture condition was stronger than that under liquor-cultured condition. The decrease speeds of nitrogen and phosphorus concentrations were in direct proportion to the concentration of H. reticulatum.

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Effects of Pb on the oxidative stress and antioxidant response in a Pb bioaccumulator plant Vallisneria natans

Cited by 83 publications

References 35 publications

Effect of Pb-Stress on Growth and Mineral Status of Two Groundnut (Arachis hypogaea L.) Cultivars

Effect of Pb-Stress on Growth and Mineral Status of Two Groundnut (Arachis hypogaea L.) Cultivars

Pb-Stress Induced Oxidative Stress Caused Alterations in Antioxidant Efficacy in Two Groundnut (<i>Arachis hypogaea</i> L.) Cultivars

Allelopathy Inhibitory Effects of Hydrodictyon reticulatum on Chlorella pyrenoidosa under Co-Culture and Liquor-Cultured Conditions

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Effects of Pb on the oxidative stress and antioxidant response in a Pb bioaccumulator plant Vallisneria natans

Cited by 83 publications

References 35 publications

Effect of Pb-Stress on Growth and Mineral Status of Two Groundnut (Arachis hypogaea L.) Cultivars

Effect of Pb-Stress on Growth and Mineral Status of Two Groundnut (Arachis hypogaea L.) Cultivars

Pb-Stress Induced Oxidative Stress Caused Alterations in Antioxidant Efficacy in Two Groundnut (&lt;i&gt;Arachis hypogaea&lt;/i&gt; L.) Cultivars

Allelopathy Inhibitory Effects of Hydrodictyon reticulatum on Chlorella pyrenoidosa under Co-Culture and Liquor-Cultured Conditions

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Pb-Stress Induced Oxidative Stress Caused Alterations in Antioxidant Efficacy in Two Groundnut (<i>Arachis hypogaea</i> L.) Cultivars