scholarly journals The effect of brassinosteroids on radish (Raphanus sativus L.) seedlings growing under cadmium stress

2008 ◽  
Vol 53 (No. 11) ◽  
pp. 465-472 ◽  
Author(s):  
S. Anuradha ◽  
S.S.R. Rao
Keyword(s):  
Lipid Peroxidation ◽  
Heavy Metal ◽  
Antioxidant Enzymes ◽  
Seed Germination ◽  
Toxic Effect ◽  
Seedling Growth ◽  
Raphanus Sativus ◽  
Free Proline ◽  
Cd Toxicity ◽  
Radish Seedlings

The effect of 24-epibrassinolide and 28-homobrassinolide on seed germination and seedling growth of radish (<I>Raphanus sativus</I> L.) was studied under cadmium toxicity. The impact of brassinosteroids (BRs) on free proline levels and the activity of antioxidant enzymes catalase (CAT; EC 1.11.1.6), peroxidase (POD; EC 1.11.1.7), superoxide dismutase (SOD; EC 1.15.1.1), ascorbic peroxidase (APOX; EC 1.11.1.11) and guaiacol peroxidase (GPX; EC 1.11.1.7) in radish seedlings under Cd toxicity was evaluated. The effect of BRs on the activity of ascorbic acid oxidase (AAO; EC 1.10.3.3) and lipid peroxidation in radish seedlings challenged with Cd stress was also investigated. BRs supplementation alleviated the toxic effect of the heavy metal and increased the percentage of seed germination and seedling growth. Out of the two substances, HBL was found to be more effective than EBL in stress alleviation. HBL (3&micro;M) alleviated the toxic effect of the heavy metal and increased the percentage of seed germination by 57% over Cd and 20% over unstressed control. Similarly supplementation of HBL (3&micro;M) caused an increase of 156%, 78% and 91% in length, fresh weight and dry weight of seedling, respectively, over Cd treatment alone. The amelioration of seedling growth by BRs under metal toxicity was associated with enhanced levels of free proline. The activities of antioxidant enzymes CAT, SOD, APOX and GPX were increased in the seedlings from treatments with Cd along with BRs. Brassinosteroid treatment reduced the activity of POD and AAO in heavy metal stressed seedlings. Lipid peroxidation induced by Cd was found reduced with the supplementation of BRs. The results obtained in the study clearly indicated the ameliorative influence of brassinosteroids on the inhibitory effect of Cd toxicity.

scholarly journals Role of nitric oxide in improving seed germination and alleviation of copper-induced photosynthetic inhibition in Indian mustard

2019 ◽  
Author(s):  
Bilal A. Rather ◽  
Iqbal R. Mir ◽  
Asim Masood ◽  
Naser A. Anjum ◽  
Nafees A. Khan
Keyword(s):  
Nitric Oxide ◽  
Lipid Peroxidation ◽  
Heavy Metal ◽  
Antioxidant Enzymes ◽  
Seed Germination ◽  
Crop Production ◽  
Germination Rate ◽  
Heavy Metal Stress ◽  
Metal Stress ◽  
Mustard Plant

AbstractHeavy metal stress limits crop production through its effects on seed germination and photosynthesis. Nitric oxide (NO), a versatile signaling molecule, plays a significant role in heavy metal stress tolerance. In the present investigation, the efficacy of NO application in the alleviation of copper (Cu) induced adverse impact on seed germination and photosynthesis of mustard plant (Brassica juncea L.) was evaluated. Pretreatment with NO donor sodium nitroprusside (SNP), significantly improved seed germination and alleviated Cu-accrued oxidative stress in B. juncea seeds. However, in the absence of NO, Cu showed a higher reduction in seed germination rate. Further, NO modulated the activities of antioxidant enzymes and sustained the lower level of lipid peroxidation by reducing H2O2, and thiobarbituric acid reactive substances (TBARS), thereby elevated the antioxidative capacity in Cu-exposed seeds. Seeds pretreated with NO also retained higher amylase activities for the proper seed germination when compared with control. NO mitigated Cu toxicity through an improved antioxidant system, and reducing Cu-induced accumulation of reactive oxygen species (ROS), reduction in lipid peroxidation improving photosynthetic efficiency and growth of the mustard plant. It may concluded that NO improved amylase activity, modulated activity of antioxidant enzymes, and enhanced the germination rate seeds under Cu stress, thereby improved photosynthesis and growth.

scholarly journals Nano-cuprous oxide enhances seed germination and seedling growth in Lycopersicum esculentum plants

2019 ◽  
Vol 9 (2) ◽  
pp. 296-302 ◽  
Author(s):  
Ananda S ◽  
Shobha G ◽  
Shashidhara KS ◽  
Vishwaprakash Mahadimane
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Enzymes ◽  
Seed Germination ◽  
Seedling Growth ◽  
Cuprous Oxide ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Phenol Oxidase ◽  
Leaf Extracts ◽  
Tomato Seedlings

This study was carried out to determine the influence of cuprous oxide nanoparticles (Cu2O NPs) biosynthesised from leaf extracts of Flacourtia montana on the tomato Lycioersicum esculentum seed germination, seedling growth and vigour index. Here we examined the promotory and phytotoxic effect of Cu2O NPs (0-160ppm) on tomato seeds resulted in dosage dependent response. The highest germination percentage (95%) was observed at 20ppm Cu2O NPs, however, above 20ppm Cu2O NPs, there is a reduction in the seed germination. The tomato seedlings showed increased root and shoot elongation up to 20ppm Cu2O NPs concentration, further increase in NPs concentration caused the negative effect on plants growth and development. The leaf pigments showed increasing trend in tomato plants after treatment with Cu2O NPs up to 20ppm as compared to control. Phytotoxicity of Cu2O NPs in tomato seedlings demonstrated by lower contents of chlorophyll a, b and carotenoid pigments. The study of effect on antioxidant enzymes showed increases in activity with increase in Cu2O NPs concentration for two enzymes, Super oxide dismutase (SOD) and Glutathione Peroxidase (GPX) out of five enzymes treated. High antioxidant activity of enzymes is followed by the increased lipid peroxidation and decrease in free radical scavenging activity by the DPPH. The activity of Catalase, Pheny Alanine Aminolyase and Poly Phenol Oxidase enzymes were found to increase up to 20ppm as compared to control and above this, all three enzymes showed decrease in activity. Uptake of Cu2O NPs nanoparticle by tomato seedlings was confirmed by atomic absorption spectroscopy.  Key words: Nano-Cuprous Oxide, Flacourtia montana, Tomato, antioxidant enzymes, lipid peroxidation

Effect of plasma treatment on the seed germination and seedling growth of radish (Raphanus sativus)

2021 ◽  
Author(s):  
Rajesh Prakash Guragain ◽  
Hom Bahadur Baniya ◽  
Santosh Dhungana ◽  
Ganesh Kuwar Chhetri ◽  
Binita Sedhai ◽  
...  
Keyword(s):  
Seed Germination ◽  
Plasma Treatment ◽  
Seedling Growth ◽  
Raphanus Sativus

scholarly journals Priming of Solanum melongena L. Seeds Enhances Germination, Alters Antioxidant Enzymes, Modulates ROS, and Improves Early Seedling Growth: Indicating Aqueous Garlic Extract as Seed-Priming Bio-Stimulant for Eggplant Production

2019 ◽  
Vol 9 (11) ◽  
pp. 2203 ◽  
Author(s):  
Muhammad Ali ◽  
Sikandar Hayat ◽  
Husain Ahmad ◽  
Muhammad Imran Ghani ◽  
Bakht Amin ◽  
...  
Keyword(s):  
Reactive Oxygen Species ◽  
Antioxidant Enzymes ◽  
Seed Germination ◽  
Seedling Growth ◽  
Seed Priming ◽  
Oxygen Species ◽  
Enzymes Activities ◽  
Early Seedling Growth ◽  
Early Seedling ◽  
Antioxidant Enzymes Activities

The current study was aimed to evaluate the seed priming potential of AGE (aqueous garlic extracts) to enhance seed germination and early seedling growth of eggplant. Different concentrations (100, 200, and 300 µg mL−1) of AGE were evaluated along with methyl jasmonate (MeJA) and salicylic acid (SA), plant growth regulators with reported seed priming potential whereas, water was taken as a control treatment. Eggplant seeds were primed for 4-, 8-, and 12-h and seed germination traits such germination rate index, germination percentage, mean germination time, and early seedling growth traits such as fresh and dry weights, root, and shoot lengths were observed. Moreover, plant antioxidant enzymes activities and lipid peroxidation levels, soluble protein contents and reactive oxygen species were monitored to establish the stimulatory/inhibitory effects of the treatments. Our results indicate priming potential of AGE, SA, and MeJA to enhance seed germination and early seedling growth in eggplant and the effects were obvious in various morphological and physiological traits. Seed priming significantly altered the antioxidant enzymes activities such as superoxide dismutase (SOD), and peroxidase (POD) with alteration in the reactive oxygen species (ROS). Interestingly, priming duration also affected the bioactivity of these chemicals because seed priming with 300 µg mL−1 AGE for 4 h had a positive influence, however, prolonged exposure to the same concentration inhibited the seed germination process and induced oxidative stress on the seedlings with elevated levels of malondialdehyde (MDA) content. We propose AGE seed priming as a bio-stimulant to enhance seed germination and early seedling growth in eggplant, and the results hence lay the foundation for the preparation of garlic-based compounds to improve vegetables production under plastic tunnels and greenhouse production units.

scholarly journals EFFECT OF PEPTIDES ON ANTIOXIDANT SYSTEM ENZYMES IN RATS WITH HEAVY METALS, PHOSPHOORGANIC PESTICIDES INTOXICATION

2016 ◽  
Author(s):  
Ye. B. Dmukhalska ◽  
Ya. I. Honskyi
Keyword(s):  
Heavy Metals ◽  
Lipid Peroxidation ◽  
Heavy Metal ◽  
Antioxidant Activity ◽  
Superoxide Dismutase ◽  
Antioxidant Enzymes ◽  
Metal Ions ◽  
Antioxidative Enzymes ◽  
Heavy Metal Ions ◽  
Antioxidant Protection

The aim of this work was to examine the effect of heavy metal ions and phosphororganic pestecies which contain glyphosate on activity antioxidative enzymes in the serum and liver of rats. The effect of peptide tsysteil-histidiltyrosilhistidil-isoleucine on the state of antioxidant protection (superoxide dismutase, catalase) and lipid peroxidation was reached. The peptide exhibits antioxidant activity, the correction of the peptide increases antioxidant enzymes activity and concentration of glutathione.

scholarly journals Ailanthone inhibition data on seed germination and seedling growth of Lepidium sativum L. and Raphanus sativus L.

Data in Brief ◽  
2019 ◽  
Vol 26 ◽  
pp. 104550 ◽  
Author(s):  
Sonia Demasi ◽  
Matteo Caser ◽  
Silvia Fogliatto ◽  
Francesco Vidotto ◽  
Francesco Trotta ◽  
...  
Keyword(s):  
Seed Germination ◽  
Seedling Growth ◽  
Raphanus Sativus ◽  
Lepidium Sativum ◽  
Inhibition Data ◽  
Raphanus Sativus L ◽  
Lepidium Sativum L
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