Antioxidant Response in Duckweed After Exposure to Secondary Effluent from Municipal Wastewater Treatment Plant, Elazığ, Turkey

Tatar, Sule; Öbek, Erdal; Yıldırım, Nuran

doi:10.1007/s00128-017-2133-3

Cited by 7 publications

(3 citation statements)

References 31 publications

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“…It is well known that duckweed accumulates heavy metals [21], including Cd [2,22]. Its physiological response to heavy metal stress [23] has been extensively studied in recent years, and researchers have started to examine its defence mechanisms against heavy metal toxicity [24]. However, relatively few studies have examined the correlation between the heavy metal toxicity (which results from the chemical forms) and antioxidant enzymatic activity in duckweed.…”

Section: Journal Of Chemistrymentioning

confidence: 99%

The Response of Duckweed (Lemna minor L.) Roots to Cd and Its Chemical Forms

Xue

Wang

Huang

et al. 2018

Journal of Chemistry

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The response of duckweed (Lemna minor L.) roots to Cd and its chemical forms was investigated. The relative root growth rate and concentrations of Cd and its different chemical forms in the root, that is, ethanol-extractable (F E -Cd), HCl-extractable (F HClCd), and residual fractions (F r -Cd), were quantified. Weibull model was used to unravel the regression between the relative root elongation (RRL) with chemical forms of Cd. Parameters assessed catalase (CAT), peroxidases (POD), and superoxide dismutase (SOD), as well as malondialdehyde (MDA) and total antioxidant capacity (A-TOC). Our results show that both the relative root growth rate and relative frond number were affected by Cd concentrations. The chemical forms of Cd were influenced by Cd content in the medium. Relative root elongation (RRL) showed a significant correlation with chemical forms of Cd. Additionally, POD and SOD increased at lower Cd concentrations followed by a decrease at higher Cd concentrations (at more than 5 M Cd). Moreover, MDA and A-TOC increased and CAT decreased with increasing Cd exposure. Furthermore, CAT showed a significant correlation with F HCl -Cd. Taken together, it can be concluded that the chemical forms of Cd are statistically significant predictors of Cd toxicity to duckweed and to the other similar aquatic plants.

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Section: Journal Of Chemistrymentioning

confidence: 99%

The Response of Duckweed (Lemna minor L.) Roots to Cd and Its Chemical Forms

Xue

Wang

Huang

et al. 2018

Journal of Chemistry

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“…GSH is an important molecule in oxidative stress (Miteva et al, 2010). Tatar et al (2017) reported that, the GSH and GSSG levels in L. minor L. were found high in adapted group compared to the control group (p<0.05). In our study, the highest GSH and GST activities were determined after 0.5 mM SA + 300 ppm ER LFB groups at 7th day (Fig 7,8).…”

Section: Effect Of Er Lfb and 05 MM Sa+er Lfb On Antioxidant Enzymesmentioning

confidence: 99%

Alleviation of Everzol Red LFB Toxicity in Duckweed (Lemna minor L.) by Exogenous Salicylic Acid

Akbulut

Turhan

Yiğit

2020

Kahramanmaraş Sütçü İmam Üniversitesi Tarım Ve Doğa Dergisi

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Salicylic acid (SA) has an important function in the formation of induced systemic resistance. The aim of this study was to determine effects of exogenous application of 0.5 mM SA on the stress response in duckweed (Lemna minor L.) exposed to the reactive dyestuff Everzol Red LFB (ER LFB). Phytotoxic responses induced by exposure to both ER LFB (75 ppm, 150 ppm and 300 ppm) and 0.5 mM SA+ ER LFB (75 ppm, 150 ppm and 300 ppm) applications were comparatively examined at 1st, 4th, and 7th days. The lowest chlorophyll a (Chl-a), chlorophyll b (Chl-b), and total chlorophyll (total Chl) contents were found in the 300 ppm ER LFB groups. The carotenoid (Car) content was decreased compared to control groups. The highest total glutathione (GSH), glutathione S-transferase (GST) and peroxidase (POD) activities were found after 0.5 mM SA + 300 ppm ER LFB groups at 7th day. Glutathione reductase (GR) activity was reduced at 7th day. The level of lipid peroxidation, measured as malondialdehyde (MDA) content was increased generally both ER LFB and SA+ER LFB groups compared to control groups. Results suggest that SA plays a positive role in L. minor against ER LFB.

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“…This group includes vitamin C (Ascorbate), vitamin E (tocopherol), carotenoids, flavonoids, polyphenols etc. (Halliwell, 1994;Khazaei & Aghaz, 2017;Nagoor Meeran et al, 2017;Tatar et al, 2017). Dringen et al, (2015) .…”

Section: The Thioredoxin Systemmentioning

confidence: 99%

Metabolic adaptations of neurons to physiological oxygen concentrations

Warde¹

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Animal species (region) Method of data expression pO 2 kPa (mmHg) Reference Rat (Cater et al., 1961) Cortex (grey) Range 2.53-5.33 (19-40) Cortex (white) Range 0.80-2.13 (6-16) Hypothalamus Range 1.47-2.13 (11-16) Pons, fornix Range 0.13-0.40 (1-3) Hippocampus 2.67 (20.3) Hippocampus near pia 4.40 (33) Hypothalamus Range 1.47-2.13 (11-16) Midbrain Range 0.55-1.07 (4.1-8.0) Pia 8.0 (60) In third ventricle 4.93 (37) Cat (Nair et al., 1975) Cortex Histogram 0-13.2 (0-99) Mean±S.D. 5.16 ±3.07 (38.7 ± 23) Rabbit (Smith et al., 1977) Cortex Histogram 0-12 (0-90) Mean±S.D. 3.27 ±2.40 (24.5 ± 18) Rabbit (Seylaz & Pinard, 1978) Caudate nucleus Range 0.84-3.47 (6.3-26) Mean±S.D. 2.25 ±0.77 (16.9 ± 5.76) Piglet (Wilson et al., 1991) Cortex blood vessels Range of means 3.33-4.67 (25-35)

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Antioxidant Response in Duckweed After Exposure to Secondary Effluent from Municipal Wastewater Treatment Plant, Elazığ, Turkey

Cited by 7 publications

References 31 publications

The Response of Duckweed (Lemna minor L.) Roots to Cd and Its Chemical Forms

The Response of Duckweed (Lemna minor L.) Roots to Cd and Its Chemical Forms

Alleviation of Everzol Red LFB Toxicity in Duckweed (Lemna minor L.) by Exogenous Salicylic Acid

Metabolic adaptations of neurons to physiological oxygen concentrations

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