Comparative study between the physiological role of hydrogen peroxide and salicylic acid in alleviating the harmful effect of low temperature on tomato plants grown under sand-ponic culture.

Low temperature is one of the most important limiting factors for plant growth throughout the world. Exposure to low temperature may cause various phenotypic and physiological symptoms, and may result in oxidative stress, leading to loss of membrane integrity and to the impairment of photosynthesis and general metabolic processes. Salicylic acid (SA), a phenolic compound produced by a wide range of plant species, may participate in many physiological and metabolic reactions in plants. It has been shown that exogenous SA may provide protection against low temperature injury in various plant species, while various stress factors may also modify the synthesis and metabolism of SA. In the present review, recent results on the effects of SA and related compounds in processes leading to acclimation to low temperatures will be discussed.

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Role of ABA, salicylic acid, calcium and hydrogen peroxide on antioxidant enzymes induction in wheat seedlings

Plant Science ◽

10.1016/j.plantsci.2005.05.004 ◽

2005 ◽

Vol 169 (3) ◽

pp. 559-570 ◽

Cited By ~ 131

Author(s):

Sarika Agarwal ◽

R.K. Sairam ◽

G.C. Srivastava ◽

Aruna Tyagi ◽

R.C. Meena

Keyword(s):

Hydrogen Peroxide ◽

Salicylic Acid ◽

Antioxidant Enzymes ◽

Wheat Seedlings

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Impact of Exogenous Application of Salicylic Acid and Hydrogen Peroxide on Essential Nutrients and Silymarin in Silybum Marianum (L.) Gaertn Grown at Two Different Altitudes of Balochistan Under Cadmium Stress

10.21203/rs.3.rs-917972/v1 ◽

2021 ◽

Author(s):

Mereen Nizar ◽

Kanval Shaukat ◽

Noreen Zahra ◽

Abdul Samad ◽

Mohammad Bilal Hafeez ◽

...

Keyword(s):

Hydrogen Peroxide ◽

Salicylic Acid ◽

Cadmium Toxicity ◽

Foliar Spray ◽

Cadmium Stress ◽

Milk Thistle ◽

Silybum Marianum ◽

Essential Nutrients ◽

Exogenous Application

Abstract Cadmium (Cd+2) is a potentially toxic element that inhibits growth and development of several species of plants along with Silybum marianum (L.) Gaertn which is an essential medicinal plant belonging to family Asteraceae. The exogenous application with 0.25µM Salicylic acid (SA) and 10µM hydrogen peroxide (H2O2) to ameliorate harmful effects of cadmium (500 µM) on milk thistle were studied that were grown at two different ecological zones of Balochistan province of Pakistan i.e. Quetta (Qta) and Turbat (Tbt). The design of experiment was Randomized Complete Block Design (RCBD) with three replicates. Application of SA and H2O2, priming (P), Foliar spray (FS) and combinational treatments (P+FS) were highly helpful in alleviating the negative role of cadmium toxicity. The essential nutrients i.e. nitrate (NO3-), calcium (Ca2+) and potassium (K) were affected by Cd+2 induced toxicity however, the substantial role of SA and H2O2 widely helped to reduce the cadmium stress and boosted up the plant nutrients content. In a nutshell, exogenous treatments of SA and H2O2 enhanced the yield potential along with highest silymarin contents in milk thistle seeds which is of prime significance for its medicinal importance in treatment of liver diseases. The data obtained in this study highly recommend the priming and foliar spray of SA and H2O2 on milk thistle plants, as the best solution to alleviative the cadmium toxicity which will ultimately leads to better growth and yield of the plants.

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Sacrificial hardmask ALD with hydrogen peroxide: comparative study of low temperature growth and film characteristics for TiO2 and Al2O3

Advances in Patterning Materials and Processes XXXVII ◽

10.1117/12.2551699 ◽

2020 ◽

Author(s):

Daniel Alvarez ◽

Keisuke Andachi ◽

Gaku Tsuchibuchi ◽

Katsumasa Suzuki ◽

Jeff Spiegelman

Keyword(s):

Hydrogen Peroxide ◽

Low Temperature ◽

Comparative Study ◽

Temperature Growth ◽

Low Temperature Growth ◽

Film Characteristics

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The Role of Hydrogen Peroxide in Dioxygen Induced Hydroxylation of Salicylic Acid

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19942447 ◽

1994 ◽

Vol 59 (11) ◽

pp. 2447-2453 ◽

Cited By ~ 6

Author(s):

Kamil Lang ◽

Dana M. Wagnerová ◽

Jiřina Brodilová

Keyword(s):

Hydrogen Peroxide ◽

Salicylic Acid ◽

Molecular Oxygen ◽

Fenton Reaction ◽

Radical Scavengers

The photochemically initiated oxidation of salicylic acid by molecular oxygen in the presence of [Fe(C2O4)3]3- leads to a mixture of 2,3- and 2,5-dihydroxybenzoic acids. Iron(II) generated by the photoreduction is reoxidized by dioxygen. Hydrogen peroxide formed in this reaction takes part in the Fenton reaction in the presence of Fe(II). Experiments with OH. radical scavengers document the role of the radicals in the photochemical and thermal hydroxylation of salicylic acid.

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Role of Jasmonic Acid Pathway in Tomato Plant-Pseudomonas syringae Interaction

Plants ◽

10.3390/plants9020136 ◽

2020 ◽

Vol 9 (2) ◽

pp. 136 ◽

Cited By ~ 1

Author(s):

Loredana Scalschi ◽

Eugenio Llorens ◽

Pilar García-Agustín ◽

Begonya Vicedo

Keyword(s):

Gene Expression ◽

Salicylic Acid ◽

Jasmonic Acid ◽

Pseudomonas Syringae ◽

Tomato Plant ◽

Wild Type ◽

Tomato Plants ◽

Bacterial Pathogenicity ◽

Acid Pathway

The jasmonic acid pathway has been considered as the backbone of the response against necrotrophic pathogens. However, a hemi-biotrophic pathogen, such as Pseudomonas syringae, has taken advantage of the crosstalk between the different plant hormones in order to manipulate the responses for its own interest. Despite that, the way in which Pseudomonas syringae releases coronatine to activate jasmonic acid-derived responses and block the activation of salicylic acid-mediated responses is widely known. However, the implication of the jasmonic intermediates in the plant-Pseudomonas interaction is not studied yet. In this work, we analyzed the response of both, plant and bacteria using SiOPR3 tomato plants. Interestingly, SiOPR3 plants are more resistant to infection with Pseudomonas. The gene expression of bacteria showed that, in SiOPR3 plants, the activation of pathogenicity is repressed in comparison to wild type plants, suggesting that the jasmonic acid pathway might play a role in the pathogenicity of the bacteria. Moreover, treatments with JA restore the susceptibility as well as activate the expression of bacterial pathogenicity genes. The observed results suggest that a complete jasmonic acid pathway is necessary for the susceptibility of tomato plants to Pseudomonas syringae.

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