Effects of 28-homobrassinolide on Seedling Growth, Lipid Peroxidation and Antioxidative Enzyme Activities under Nickel Stress in Seedlings of Zea mays L.

Bhardwaj, Renu; Arora, Narinder; Sharma, Prateek; Arora, Hardesh Kumar

doi:10.3923/ajps.2007.765.772

Cited by 48 publications

(4 citation statements)

References 39 publications

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“…Similar observations showing rise in ROS levels have been recorded in Achnatherum inebrians and Mentha arvensis plants exposed to Cd stress [36,47]. The levels of ROS were lowered by the 24-EBR treatment in the current study; these observations were in line with the earlier findings of Bhardwaj et al [69] in Zea mays, Choudhary et al [70] in Raphanus sativus, and Kohli et al [50] in Brassica juncea plants exposed to metal stress and supplied with 24-EBR. The decline in the levels of ROS by 24-EBR application is attributed to the activation of both enzymatic and non-enzymatic components of the antioxidative defense system [71].…”

Section: Discussionsupporting

confidence: 92%

Foliar Application of 24-Epibrassinolide Improves Growth, Ascorbate-Glutathione Cycle, and Glyoxalase System in Brown Mustard (Brassica juncea (L.) Czern.) under Cadmium Toxicity

Alam

Kohli

Balawi

et al. 2020

Plants

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Cadmium (Cd) metal toxicity is a crucial ecological matter that requires immediate efforts to mitigate it. Brassica juncea plants were exposed to Cd (0 and 200 µM as CdSO4) and foliar application of 24-Epibrassinolide (EBR) (0, 10−7 and 10−5 M). The toxic effect of Cd was evident in terms of declined growth and biomass yield, lowered levels of pigment content and chlorophyll fluorescence, and reduction in gas exchange attributes. The levels of proline and glycinebetaine increased in response to Cd treatment. There was an imperative rise in the contents of H2O2 and malondialdehyde as well as electrolyte leakage in the Cd-stressed plants. With the application of EBR, there was a significant replenishment in growth attributes and photosynthetic efficacy. The contents of ROS (reactive oxygen species) and malondialdehyde as well as electrolyte leakage were reduced by the hormone supplementation. Enhancement in the contents of glutathione and ascorbic acid, and the activities of enzymes of the antioxidative defense system and glyoxalase system was recorded in response to Cd as well as hormone treatment. The in situ levels of Cd in roots and shoot were augmented in response to Cd treatment, but were found to be lowered by the EBR application.

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Section: Discussionsupporting

confidence: 92%

Foliar Application of 24-Epibrassinolide Improves Growth, Ascorbate-Glutathione Cycle, and Glyoxalase System in Brown Mustard (Brassica juncea (L.) Czern.) under Cadmium Toxicity

Alam

Kohli

Balawi

et al. 2020

Plants

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“…159,160 However, in both these species and in others such as maize and pigeon pea, the effects of Ni toxicity are already visible during germination. [161][162][163][164] High Ni levels also disrupt the water balance thus reducing the transpiration rate, reflecting the inhibition of leaf growth 165 and the higher levels of endogenous ABA that promote stomatal closure. Ni toxicity also reduces chlorophyll synthesis and disrupts the thylakoid membranes, thus inhibiting photosynthesis.…”

Section: Nickelmentioning

confidence: 99%

Nutrient metal elements in plants

et al. 2014

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Plants need many different metal elements for growth, development and reproduction, which must be mobilized from the soil matrix and absorbed by the roots as metal ions. Once taken up by the roots, metal ions are allocated to different parts of the plant by the vascular tissues. Metals are naturally present in the soil, but human activities, ranging from mining and agriculture to sewage processing and heavy industry, have increased the amount of metal pollution in the environment. Plants are challenged by environmental metal ion concentrations that fluctuate from low to high toxic levels, and have therefore evolved mechanisms to cope with such phenomena. In this review, we focus on recent data that provide insight into the molecular mechanisms of metal absorption and transport by plants, also considering the effect of metal deficiency and toxicity. We also highlight the positive effects of some non-essential metals on plant fitness.

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“…Brassinolides (BRs) are the novel plant growth promotors that regulate the biological process in plants and are widely used in agriculture to increase production and enhance plant resistance against biotic and abiotic stresses [8][9][10], moisture stress [11], drought stress [12,13], heavy-metal stress [14,15], salinity stress [16,17], and nitrosative stress [18]. In the current situation of maize high demand and weather concerns, including extreme weather and limited resources, there is a need to increase yield per unit area.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Droplet Deposition, 28-Homobrassinolide Dosage Efficacy and Working Efficiency of the Unmanned Aerial Vehicle and Knapsack Manual Sprayer in the Maize Field

et al. 2022

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Brassinolides (BRs) are naturally-occurring phytohormones, which are essentially important to improve the crop adoptive capacity to various stresses. Spray volume (SV) and agrochemical application methods are associated with chemical deposition and field efficiency. The objective of this study was to compare the possible effects of 28-Homobrassinolide (HBL) dosages 18, 22, and 30 mg a.i. ha−1 for unmanned aerial vehicle (UAV) sprayers (15 L ha−1 and 30 L ha−1) and 22 mg a.i. ha−1 for Knapsack manual sprayers (KMS) (450 L ha−1) at maize silking stage on droplets deposition distribution, photosynthetic parameters, grain filling process and yield. The results showed that the droplet deposition of UAV (15, 30 L ha−1) was 47.04%, 8.89% higher than KMS. However, the UAV sprayer had a poor droplet deposition distribution. HBL significantly increased the photosynthetic parameters, grain filling rate, and yield. A UAV spray volume of 15 L ha−1 with 22 mg a.i. ha−1 significantly increased grains yield by 4.16–5.64%, 7.5–12.09% compared to KMS and CK in both years. Considering the high efficiency of the UAV sprayer and better effects of HBL on final yield, spraying 22~30 mg a.i. ha−1 with UAV spray volume 15 L ha−1 at the silking stage could be a better strategy.

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Effects of 28-homobrassinolide on Seedling Growth, Lipid Peroxidation and Antioxidative Enzyme Activities under Nickel Stress in Seedlings of Zea mays L.

Cited by 48 publications

References 39 publications

Foliar Application of 24-Epibrassinolide Improves Growth, Ascorbate-Glutathione Cycle, and Glyoxalase System in Brown Mustard (Brassica juncea (L.) Czern.) under Cadmium Toxicity

Foliar Application of 24-Epibrassinolide Improves Growth, Ascorbate-Glutathione Cycle, and Glyoxalase System in Brown Mustard (Brassica juncea (L.) Czern.) under Cadmium Toxicity

Nutrient metal elements in plants

Comparison of Droplet Deposition, 28-Homobrassinolide Dosage Efficacy and Working Efficiency of the Unmanned Aerial Vehicle and Knapsack Manual Sprayer in the Maize Field

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