scholarly journals The influence of cadmium and essential nanometals on the physiological And biochemical parameters of lettuce plants

2018 ◽  
Vol 75 (1) ◽  
pp. 37-45 ◽  
Author(s):  
I. Khomenko ◽  
O. Kosyk ◽  
N. Taran
Keyword(s):  
Lipid Peroxidation ◽  
Photosynthetic Pigments ◽  
Photosynthetic Pigment ◽  
Malonic Dialdehyde ◽  
Carotenoid Content ◽  
Initial Growth ◽  
Lipid Peroxidation Products ◽  
Spectrophotometric Methods ◽  
Physiological And Biochemical ◽  
All Treatment

Due to the aim the effect of pre-sowing treatment with a nonionic colloidal solution of the mix of copper, zinc, manganese and iron nanoparticles, cadmium ions and their combined action on the physiological and biochemical indices: the content of lipid peroxidation products and balance of photosynthetic pigments in green Lolo and red Lolo Ross varieties of Lactuca sativa L. was investigated. Spectrophotometric methods of investigating the content of peroxides, thiobarbiturate-active products (with use of the modified Kumar and Knowles method), as well as the content of the main photosynthetic pigments (chlorophyll a, b, a/b ratio, and the carotenoid content) with the Wintermans, de Mots calculations application were used. Due to the results, a decrease in the content of peroxides and growth of malonic dialdehyde was observed for most treatment variants of Lolo. The opposite tendency was observed for the Ross variety (the initial growth of these parameters under the nanoparticles influence decreased to the control during the fourteen-day exposure). The decrease of chlorophyll content was observed In the Lolo variety under the essential metal nanoparticles influence, in contrast to the action of cadmium.For the Ross variety, a significant reduction of both chlorophyll and carotenoid contents in all treatment types during exposure was calculated.The a/b-index for Lolo plants has significantly increased in variants of cadmium influence, for Ross plants the divergence of the influence of all treatment variants has been marked. As a result, the treatment with a mixture of essential nanometals showed additive stress-loading functions. It was observed in a growth of the level of lipid peroxidation products and the reduction of the photosynthetic pigment biomarkers in both varieties during the 0,1 mM cadmium exposure. The Lolo Ross variety showed a higher variability of results under different treatment, compared to the Lolo variety.

scholarly journals Physiological and biochemical mechanisms of plants resistance to oxidative stress under peptide elicitor AtPep1

2021 ◽  
pp. 38-46
Author(s):  
Halina G. Filiptsova ◽  
Vladimir M. Yurin
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Superoxide Dismutase ◽  
Aerial Part ◽  
Lipid Peroxidation Products ◽  
Resistance To Stress ◽  
Biochemical Mechanisms ◽  
Physiological And Biochemical Mechanisms ◽  
Physiological And Biochemical

The effect of the peptide elicitor AtPep1 on the resistance of soybean and pea plants to oxidative stress was studied. The concentration of the peptide 10– 9 mol/L has the maximum elicitor effect on these plants. It was shown that treatment of the aerial part of seedlings with this peptide leads to an increase in the activity of peroxidase and superoxide dismutase and a decrease in the level of lipid peroxidation products in plants under oxidative stress. Revealed effects cause an increase in the plants resistance to stress.

scholarly journals Impact of anthropogenic pollution in Tyumen on herbs vital activity parameters

2021 ◽  
Vol 21 (1) ◽  
pp. 87-98
Author(s):  
Alexander S. Petukhov ◽  
◽  
Tatyana A. Kremleva ◽  
Galina A. Petukhova ◽  
Nikolay A. Khritokhin ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Heavy Metal ◽  
Photosynthetic Pigments ◽  
Metal Content ◽  
Photosynthetic Pigment ◽  
Red Clover ◽  
Anthropogenic Pollution ◽  
Heavy Metal Content ◽  
Engine Oil ◽  
In Cells

The purpose of this study was the investigation of lipid peroxidation products and photosynthetic pigment content in cells of herbs of various species in conditions of anthropogenic pollution of Tyumen. The material for the research was collected near different plants of Tyumen: metallurgical, engine, oil refinery, battery manufacturing as well as highway pollution. The following species of plants were analysed: coltsfoot (Tussilago farfara), red clover (Trifolium rubens), chamomile (Matricaria chamomilla) and wild vetch (Vicia cracca). Heavy metal concentration in soils of urban areas turned out to be elevated compared to background sites. Especially high heavy metal content was registered near metallurgical and battery manufacturing plants. Changes in photosynthetic pigment concentration turned out to be species-specific. An increase in photosynthetic pigments was obtained in chamomile cells, while in other plants oppression of photosynthetic apparatus was revealed. Concentration of lipid peroxidation cells of chamomile, meadow grass and wild vetch was increased compared to background site, while in coltsfoot and red clover it decreased. Heavy metal content in soils positively correlated with lipid peroxidation in plants. Oxidation stress in chamomile cells created energetic starvation, which was reflected in a positive correlation between photosynthetic pigments and the concentration of conjugated dienes in cells.

Structural Adaptation and Antioxidant Response of Guarianthe bowringiana (O’Brien) Dressler & W. E. Higgins (Orchidaceae Juss.) Seedlings During Ex Vitro Acclimatization

2021 ◽  
Vol 74 ◽  
Author(s):  
Lyudmyla Buyun ◽  
Roman Ivannikov ◽  
Lyudmila Batsmanova ◽  
Nataliya Taran ◽  
Lyudmyla Kovalska ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Superoxide Dismutase ◽  
Photosynthetic Pigments ◽  
Antioxidant Response ◽  
Carotenoid Content ◽  
Ex Vitro ◽  
Structural Adaptation ◽  
Early Stages ◽  
Acclimatization Period

Abstract Guarianthe bowringiana is one of the oldest samples cultivated at NBG’s orchid unit glasshouses since 1970s. An efficient protocol for asymbiotic in vitro seed germination of G. bowringiana has previously been established. Given that acclimatization is a crucial step in micropropagation, this study assesses the structural adaptation and antioxidant response of G. bowringiana seedlings during ex vitro acclimatization to ex vitro conditions. The leaf surface micromorphology of the G. bowringiana juvenile plants propagated in vitro from seeds as well as the leaves of adult plants cultivated in glasshouse were analyzed using scanning electron microscopy. The levels of lipid peroxidation (TBARS level), superoxide dismutase (SOD) activity, and the photosynthetic activity were monitored for seven days from the transfer of seedlings from the in vitro cultivation vessels as they are markers indicating the response of the leaves of in vitro propagated G. bowringiana plants to oxidative stress during the early stages of acclimatization to ex vitro conditions. During the initial 2 days of the monitored acclimatization period (0–7 days), the level of photosynthetic pigments (chlorophyll a , b , and carotenoid content) increased, followed by an insignificant increase during the successive period (by the seventh day) of acclimatization. At the same time, the level of the tested antioxidant enzyme (SOD) exhibited an increasing trend throughout the acclimatization period. The SOD activities in the leaves of G. bowringiana seedlings were significantly affected when they were transferred from in vitro to ex vitro conditions due to drought stress. Thus, it was revealed that in the early stages of acclimatizing to the altered environments, G. bowringiana seedlings exhibited a rapid increase in photosynthetic pigments, superoxide dismutase activity, and lipid peroxidation levels after being transferred to ex vitro conditions. Comparison of the leaf micromorphologies of G. bowringiana plants grown under in vitro and those grown under ex vitro conditions revealed that leaf development had undergone significant changes during acclimatization to the altered conditions. In vitro to ex vitro transfer leads to a transient decrease in photosynthetic parameters.

scholarly journals Potentialities of correction of lipid peroxidation with combined antihypertensive therapy in patients with ' arterial hypertension

2004 ◽  
Vol 10 (1) ◽  
pp. 36-38
Author(s):  
Yu. I. Nesterov ◽  
A. T. Teplyakov
Keyword(s):  
Lipid Peroxidation ◽  
Time Course ◽  
Enzyme Inhibitor ◽  
Combined Therapy ◽  
Malonic Dialdehyde ◽  
Serum Levels ◽  
Outpatient Setting ◽  
Converting Enzyme ◽  
Lipid Peroxidation Products ◽  
The Impact

Aim. To study the impact of combined therapy with the angiotensin-converting enzyme inhibitor enap and the calcium antagonist corinfar SR on the values of blood pressure (BP) and the content of lipid peroxidation products in patients with.arterial hypertension (AH). Subjects and methods. Twenty-eight patients with Stage I-IIAH were treated with a combination of enap and corinfar SR for 6 weeks in the outpatient setting. The time course of changes in BP and the serum levels of dienic conjugates and malonic dialdehyde were determined. Results. The effective therapy with a combination of enap and corinfar SR was possible in 83% of the patients. Systolic and diastolic BPs decreased by 24 and 21% and they were 135,1±8,3 and 84,1±4,3 mm Hg, respectively. The content of dienic conjugates and malonic dialdehyde reduced by 10 and 9%, respectively. Conclusion. In addition to a steady-state BP decrease, 6-week combined therapy with enap and corinfar SR inhibits the serum activity of intermediate lipid peroxidation products.

scholarly journals Lipids peroxidation of wood plants seedlings under the volatile organic compounds action

2019 ◽  
Vol 30 (2) ◽  
pp. 118-124
Author(s):  
E. G. Tyulkova ◽  
L. P. Avdashkova
Keyword(s):  
Lipid Peroxidation ◽  
Volatile Organic Compounds ◽  
Toxic Effect ◽  
Organic Compounds ◽  
Woody Plants ◽  
Butyl Acetate ◽  
Malonic Dialdehyde ◽  
Experimental Conditions ◽  
Lipid Peroxidation Products ◽  
Volatile Organic

One of the criteria for plant adaptation to the volatile organic compounds action can be the lipid peroxidation intensity processes as a result of destructive oxidative processes ratio and the plants activity antioxidant protection. In this regard, the aim of the study was a comparative study of volatile various doses organic compounds effect (o-xylol, benz(a)pyrene, butyl acetate) on the content of malondialdehyde (MDA) in woody plants seedlings under specified experimental conditions. The results of an experiment on processing leaf blades of urban environments woody plants seedlings with volatile hydrocarbons and their mixture indicate that the effect of o-xylol, butyl acetate and a mixture of butyl acetate and o-xylol on the malonic dialdehyde content in drooping birch Betula pendula Roth. during the first days after exposure, it was manifested in the accumulation of lipid peroxidation products, whereas after three days of the experiment, the plant response in this case was expressed as a decrease in the content of MDA and the intensity of the lipid peroxidation process. Benz(a)pyrene in drooping birch caused a higher content of MDA three days after treatment. In the pyramidal poplar, the character of o-xylol influence and a butyl acetate and o-xylol mixture over the experiment course was similar to the drooping birch and was expressed in the lipid peroxidation products accumulation one day after treatment. Benz(a)pyrene was the cause of the increased malondialdehyde content one day after treatment, butyl acetate – after three days of the experiment. The combined processing of birch seedlings leaf blades with a butyl acetate and o-xylol mixture made it possible for these compounds to enhance each other's toxic effect compared to their action alone, with the exception of o-xylol three days after treatment with the mixture in the maximum dose. In pyramidal poplar, unlike birch, suspended butyl acetate in the mixture weakened the o-xylol toxic effect in comparison with its effect in the form of a single solution, and o-xylol weakened the effect of butyl acetate. In general, in the studied wood seedlings, the most potent compounds one cluster in the processes of membrane lipid peroxidation compared with the control can include benz(a)pyrene (in birch), butyl acetate and a mixture of butyl acetate and o-xylol (at the poplar pyramidal).

scholarly journals Study of cytokines content and gangliosides metabolism at experimental brain edema

2011 ◽  
Vol 57 (4) ◽  
pp. 455-460
Author(s):  
A.V. Zakaryan ◽  
G.S. Kazaryan ◽  
G.V. Zakaryan ◽  
M.M. Melkonyan ◽  
L.M. Hovsepyan
Keyword(s):  
Lipid Peroxidation ◽  
Brain Edema ◽  
Malonic Dialdehyde ◽  
Diene Conjugates ◽  
Lipid Peroxidation Products ◽  
Experimental Brain Edema

The content of cytokines, and gangliosides metabolism, and the quantity of lipid peroxidation products were studied at experimental brain edema. Data obtained show increase the level of proinflammatory cytokins and decrease the level of antiinflammatory cytokines during development of brain edema. Along with this we reveal the accumulation of lipid peroxidation products (diene conjugates, hydroperoxides, and malonic dialdehyde). Each fraction of gangliosides decreased, but the product of their hydrolytic dissociation sphingosine increased at experimental brain edema.

scholarly journals Assessment of Morpho-Physiological and Biochemical Responses of Mercury-Stressed Trigonella foenum-gracum L. to Silver Nanoparticles and Sphingobacterium ginsenosidiumtans Applications

Plants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1349
Author(s):  
Ahlam Khalofah ◽  
Mona Kilany ◽  
Hussein Migdadi
Keyword(s):  
Heavy Metals ◽  
Hydrogen Peroxide ◽  
Photosynthetic Pigments ◽  
Ag Nanoparticles ◽  
Thymus Vulgaris ◽  
Total Phenols ◽  
Biochemical Responses ◽  
Mercury Stress ◽  
Relative Water ◽  
Physiological And Biochemical

Heavy metals are primarily generated and deposited in the environment, causing phytotoxicity. This work evaluated fenugreek plants’ morpho-physiological and biochemical responses under mercury stress conditions toward Ag nanoparticles and Sphingobacterium ginsenosidiumtans applications. The fabrication of Ag nanoparticles by Thymus vulgaris was monitored and described by UV/Vis analysis, FTIR, and SEM. The effect of mercury on vegetative growth was determined by measuring the root and shoots length, the number and area of leaves, the relative water content, and the weight of the green and dried plants; appraisal of photosynthetic pigments, proline, hydrogen peroxide, and total phenols content were also performed. In addition, the manipulation of Ag nanoparticles, S. ginsenosidiumtans, and their combination were tested for mercury stress. Here, Ag nanoparticles were formed at 420 nm with a uniform cuboid form and size of 85 nm. Interestingly, the gradual suppression of vegetal growth and photosynthetic pigments by mercury, Ag nanoparticles, and S. ginsenosidiumtans were detected; however, carotenoids and anthocyanins were significantly increased. In addition, proline, hydrogen peroxide, and total phenols content were significantly increased because mercury and S. ginsenosidiumtans enhance this increase. Ag nanoparticles achieve higher levels by the combination. Thus, S. ginsenosidiumtans and Ag nanoparticles could have the plausible ability to relieve and combat mercury’s dangerous effects in fenugreek.

scholarly journals PSVII-17 Program Chair Poster Pick: Reproductive function of cows depending on lipid metabolism

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 293-294
Author(s):  
Murat Baymishev ◽  
Sergey Eremin ◽  
Kirill Plemyashov ◽  
Khamidulla Baymishev ◽  
Igor Konopel’tsev ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Live Weight ◽  
Reproductive Function ◽  
Serum Levels ◽  
Total Serum ◽  
Dry Period ◽  
Lipid Peroxidation Products ◽  
Synthetic Function ◽  
The Difference ◽  
Oxidized Products

Abstract The aim of the study was to determine the etiopathogenesis of reproductive dysfunction in highly productive cows. Studies were conducted on cows of black-motley breed, aged 3–5 lactations, with a live weight of 480–520 kg. Cows were divided into two groups. The first group included 20 cows effective inseminated after the first insemination. The second group included 17 cows that did not fertilize after the first insemination. Blood samples (n = 253) were taken from 4–7; 14–17; 24–34; 35–50; 88–95; 195–210 days of pregnancy; during the beginning of dry period (DP); 1–4 days before calving and on the first day after calving. The content of total serum lipids in pregnant animals was 15.8% higher compared to unfertilized animals. In non-pregnant cows, a decrease in free cholesterol (by 28.65%), especially in its ether-bound fraction (14.91%), indicates a lower synthetic function of the liver, which is confirmed by the low serum levels of vitamins A and E (a difference of 11.3 and 23.65%). The DP was characterized by a significant increase in the products of lipid peroxidation - malondialdehyde by 12–17%, diene and triene conjugates - by 10–15 and 8–15%, respectively, and 1–4 days before calving in cows, which subsequently had a pathological calving, in particular - retention of placenta (5 cows), were characterized by an increased content in the blood plasma of lipid peroxidation products. Thus, the difference in the number of dienes, trienes, and malondialdehyde products was 14.0, 12.0, and 23.5%, compared with animals without obstetric pathology. On the first day after calving, this difference increased even more. Cows with retention of placenta had a significantly higher level of lipid peroxidation products and were characterized by a predominance of oxidized products over the antiradical thiol disulfide and ascorbate systems restored in the antioxidant balance.

scholarly journals Physiological and Biochemical Responses of Ageratum conyzoides, Oryza sativa f. spontanea (Weedy Rice) and Cyperus iria to Parthenium hysterophorus Methanol Extract

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1205
Author(s):  
Mst. Motmainna ◽  
Abdul Shukor Juraimi ◽  
Md. Kamal Uddin ◽  
Norhayu Binti Asib ◽  
A. K. M. Mominul Islam ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Methanol Extract ◽  
Parthenium Hysterophorus ◽  
Carotenoid Content ◽  
Weedy Rice ◽  
Ageratum Conyzoides ◽  
Test Species ◽  
Biochemical Responses ◽  
Glasshouse Condition ◽  
Physiological And Biochemical

The current study was designed to investigate the effect of Parthenium hysterophorus L. methanol extract on Ageratum conyzoides L., Oryza sativa f. spontanea (weedy rice) and Cyperus iria L. in glasshouse condition. Here, Parthenium hysterophorus methanol extract at 20, 40, and 60 g L−1 concentrations was applied on the test species to examine their physiological and biochemical responses at 6, 24, 48 and 72 h after spraying (HAS). The phytotoxicity of P. hysterophorus was strong on A. conyzoides compared to weedy rice and Cyperus iria at different concentrations and exposure times. There was a reduction in photosynthesis rate, stomatal conductance, transpiration, chlorophyll content and carotenoid content when plants were treated with P. hysterophorus extract concentrations. Exposure to P. hysterophorus (60 g L−1) at 24 HAS increased malondialdehyde (MDA) and proline content by 152% and 130%, respectively, in A. conyzoides compared with control. The activities of antioxidant enzymes (superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD)) were also increased in the presence of P. hysterophorus extract. Present findings confirm that the methanol extract of P. hysterophorus can disrupt the physiological and biochemical mechanism of target weeds and could be used as an alternative to chemical herbicides.

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