Indole acetic acid differently changes growth and nitrogen metabolism in Pisum sativum L. seedlings under chromium (VI) phytotoxicity: Implication of oxidative stress

Gangwar, Savita; Singh, Vijay Pratap

doi:10.1016/j.scienta.2011.03.026

Cited by 112 publications

(61 citation statements)

References 40 publications

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“…This is a typical Cr(VI) response as reported in earlier studies (Shanker et al 2004;Sinha et al 2009;Gangwar and Singh 2011). Chromium (VI) is a powerful oxidizing agent and causes inhibition in growth by affecting various metabolic processes, and by enhancing oxidative damage to lipids and proteins due to the increased production of ROS (Shanker et al 2004;Vernay et al 2007;Schiavon et al 2008;Sinha et al 2009;Gangwar and Singh 2011). However, addition of Si significantly alleviated Cr-induced inhibitory effects on growth, pigments and protein (Table 1).…”

Section: Discussionsupporting

confidence: 69%

“…Chromium affects several physiological processes such as seed germination, growth, photosynthesis, status of mineral elements, water balance, and nitrogen metabolism (Shanker et al 2004;Vernay et al 2007;Sinha et al 2009;Gangwar and Singh 2011). The toxic property of Cr(VI) originates from the action of this form itself as a oxidizing agent as well as from the formation of reactive oxygen species (ROS) such as superoxide radical (O 2 Á-), hydrogen peroxide (H 2 O 2 ) and hydroxyl radical (OHÁ) during the reduction of Cr(VI) to Cr(III) occurring inside the cell (Shanker et al 2004).…”

Section: Introductionmentioning

confidence: 99%

“…The toxic property of Cr(VI) originates from the action of this form itself as a oxidizing agent as well as from the formation of reactive oxygen species (ROS) such as superoxide radical (O 2 Á-), hydrogen peroxide (H 2 O 2 ) and hydroxyl radical (OHÁ) during the reduction of Cr(VI) to Cr(III) occurring inside the cell (Shanker et al 2004). ROS at higher concentrations lead to oxidative damage in cells due to the oxidation of lipids and proteins (Shanker et al 2004;Gangwar and Singh 2011). Thus, plants exposed to Cr suffer from oxidative stress, and this is an important factor leading to altered metabolic processes and cell death.…”

Section: Introductionmentioning

confidence: 99%

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Impact of exogenous silicon addition on chromium uptake, growth, mineral elements, oxidative stress, antioxidant capacity, and leaf and root structures in rice seedlings exposed to hexavalent chromium

et al. 2011

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Hydroponic experiments were conducted to investigate the role of exogenous silicon (Si) addition in increasing hexavalent chromium (Cr VI) tolerance in rice seedlings. Rice seedlings were grown under 100 lM Cr(VI) stress without or with 10 lM Si. Chromium treatment decreased growth, photosynthetic pigments and protein, which was accompanied by a significant increase in Cr accumulation and lipid peroxidation (as malondialdehyde; MDA). However, Si addition alleviated Cr toxicity and promoted growth of rice by decreasing Cr accumulation, root-to-shoot Cr transport and MDA level. Contents of macro (Mg, Ca and K) as well as micronutrients (Zn and Fe) were decreased by Cr except Mn while Si addition prevented decrease in these nutrients induced by Cr. Antioxidant capacity and total phenolic contents were decreased by Cr while these indices improved by Si addition. Treatment of Cr decreased the length of leaf epidermal cells and stomatal frequency, and adversely affected chloroplasts containing mesophyll cells and integrity of xylem and phloem, and Si addition minimized these abnormalities. However, frequency of root hairs was increased by Cr treatment. Results showed that exogenous Si addition enhanced Cr(VI) tolerance in rice seedlings by decreasing Cr accumulation, root-to-shoot Cr transport and MDA level, and by increasing content of some mineral elements (K, Fe and Zn) and antioxidant capacity compared to the Cr treatment alone.

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Section: Discussionsupporting

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of exogenous silicon addition on chromium uptake, growth, mineral elements, oxidative stress, antioxidant capacity, and leaf and root structures in rice seedlings exposed to hexavalent chromium

et al. 2011

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“…Because N is an essential component of a wide range of molecules, such as proteins, amino acids, and nucleic acids, deficiency of this element most often results in stunted and slow growth as well as leaf chlorosis (Gangwar and Singh, 2011;Thangaradjou et al, 2014). Consequently, our results demonstrate that in both the WT and the fri mutant, N deficiency reduced the height, leaf area, green color index, and root and whole plant dry weight (Table 1).…”

Section: N Deficiencymentioning

confidence: 99%

Nutrition in tomato (Solanum lycopersicum L) as affected by light: revealing a new role of phytochrome A

Carvalho¹,

Moda²,

Silva³

et al. 2016

Aust J Crop Sci

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The far red light insensitive (fri) mutant of tomato, which is phytochrome A (phyA) deficient, displays some characteristics that have recently indicated important functions of this photoreceptor in water relations. With respect to the relationship between nutrition and water relations, we investigated the growth and nutritional status of fri supplied with Hoagland's complete solution and solutions with the individual omission of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and sulfur (S). For this purpose, 20-day-old tomato plants of the WT (cv. Moneymaker) and fri mutant were transplanted into pots (one plant per pot) that contained Hoagland and Arnon (1950) solution diluted to 50 per cent in the first week and to 100 per cent from the second week of cultivation until the end of the experiment (50 DAT O) from a balanced nutrient solution. The experiment was arranged in a completely randomized factorial design with two genotypes and seven types of nutrient solutions with three replications. Upon harvest, the following measurements were performed: the height of the plants, measured from the base of the stem of each plant to the insertion of the first fully expanded leaf; the stem diameter; the total number of leaves per plant; an indirect chlorophyll measurement, which we called the green color index, and the leaf area. Statistical analysis was performed using analysis of variance (ANOVA) followed by Tukey's test. First, based on growth analyses, fri showed an enhanced dry weight of the shoot, root and whole plant in complete solution compared with the wild type (WT). In addition, the phyA mutant had a multifaceted response compared with that of the WT when the nutrients were omitted. For the fri mutant, the height and green color index were reduced without N and K; the leaf area without P, K and S; the dry weight of the root and shoot without N, P, K and S, and the root, shoot and total plant dry weight without P, K and S. On the other hand, the green color index of the fri mutant was enhanced without Ca and Mg. Together, these results show that in addition to revealing an altered response to nutrition in the fri mutant, phyA can play a role in light signaling in the nutrition and nutritional stress of tomato.

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“…In stress condition, the balance between the productions of ROS and antioxidants get disturbed and thus, level of ROS is enhanced to an extent that causes severe damage to the biomolecules [22,23]. ROS directly react with biomolecules cause lipid peroxidation, protein oxidation and DNA mutation [24,25].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Effects of Salicylic Acid on Some Biochemical Parameters in Zea mays to Glyphosate Herbicide

Akbulut¹,

Yiğit²,

Bayram³

2014

J Environ Anal Toxicol

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Indole acetic acid differently changes growth and nitrogen metabolism in Pisum sativum L. seedlings under chromium (VI) phytotoxicity: Implication of oxidative stress

Cited by 112 publications

References 40 publications

Impact of exogenous silicon addition on chromium uptake, growth, mineral elements, oxidative stress, antioxidant capacity, and leaf and root structures in rice seedlings exposed to hexavalent chromium

Impact of exogenous silicon addition on chromium uptake, growth, mineral elements, oxidative stress, antioxidant capacity, and leaf and root structures in rice seedlings exposed to hexavalent chromium

Nutrition in tomato (Solanum lycopersicum L) as affected by light: revealing a new role of phytochrome A

Investigation of the Effects of Salicylic Acid on Some Biochemical Parameters in Zea mays to Glyphosate Herbicide

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