ROS as Signaling Molecules and Enzymes of Plant Response to Unfavorable Environmental Conditions

Boguszewska, D.; Zagdańska, Barbara

doi:10.5772/33589

Cited by 29 publications

(30 citation statements)

References 86 publications

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“…Accordingly, the lowest values of the non-enzymatic and enzymatic antioxidants were found in control plants irrigated with tap water, whereas the highest values were found in plants irrigated with water containing the highest salt concentration (9000 ppm). Such results are in harmony with Foyer andNoctor (2009), Cazzonelli andPogson (2010) and Boguszewska and Zagdańska (2012). They found that many plants produce significant amount of a potential source of compounds such as non-enzymatic (vitamins A, and C) and enzymatic antioxidants (POD and SOD) to prevent oxidative stress caused by oxygen and photons.…”

Section: Effect Of Salt Stress On Salt Stressed-plantsmentioning

confidence: 80%

Alleviation of salt stress on Moringa peregrina using foliar application of nanofertilizers

Soliman¹,

Elfeky²,

Darwish³

2015

J. Hortic. For.

173

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Section: Effect Of Salt Stress On Salt Stressed-plantsmentioning

confidence: 80%

Alleviation of salt stress on Moringa peregrina using foliar application of nanofertilizers

Soliman¹,

Elfeky²,

Darwish³

2015

J. Hortic. For.

173

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“…For examples, cold stress enhanced the production of malonic dialehyde (MDA) and relative electrolyte leakage in jasmine leaves, confirming the presence of oxidative stress [2]. In addition, H2O2 is subsequently converted into hydroxyl radical (HO·), which is a highly reactive oxidant in the family of ROS [29]. O2-and H2O2 can interfere and alter the functions of proteins, lipids and DNA [30] by reacting with them, causing oxidative damage and impairing the normal cellular functions [31].…”

Section: Introductionmentioning

confidence: 92%

“…Proline appears to be involved in the chelation of excess cytoplasmic metal ions, which shows a preference for nitrogen or oxygen coordination. Due to its zwitterionic and high hydrophilic character, proline may act as protein stabilizer, metal chelator, free radical scavenger and provide protection to the enzyme and biomolecules [29]. SA pre-treatment decrease the oxidative stress accumulation in rice roots and seedlings grown under Cd, Mn and Pb stress [33,34], Triticum polonicum L. grown under manganese (Mn) toxicity [35], and jasmine leaves in cold stress [2].…”

Section: Introductionmentioning

confidence: 99%

Salicylic Acid Mitigates Pb Stress In Nicotiana Tabacum

Halim¹,

Phang²

2017

Sci. herit. j.

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The exposure of plants to Pb stress increases the generation of reactive oxygen species (ROS) including O2-, H2O2 and ˉOH. ROS are highly reactive substances that capable of altering normal cellular metabolism via oxidative damage to membranes, proteins, and nucleic acids. Compound involves in the detoxification of Pb stress is important to reduce the toxic effect of Pb. Stress signaling compounds like salicylic acid (SA) is one of the plant defense mechanisms to mitigate Pb toxicity. This study aimed to observe the effect of SA on the morpho-physiology, accumulation of Pb content and the production of O2-and H2O2 of N. tabacum grown under Pb stress. N. tabacum was propagated and treated with SA and Pb treatments. Then, the morpho-physiology of N. tabacum was observed and measured, histochemical staining of diaminobenzidine (DAB) and nitro blue tetrazolium (NBT), and Inductively coupled plasma mass spectrometry (ICP-MS) were conducted to assesses the effect of SA on the accumulation of O2-and H2O2, and Pb content in Pb-treated N. tabacum. The finding of this study showed the application of SA improved growth parameters, diminished the accumulation of oxidative stress as well as reduced Pb content. SA might detoxify Pb, thus alleviate Pb toxicity.

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“…Also, in 20th day harvested leaves, the flavonoids content increased by 40.97 %, 47.68 % and 123.14 % as copper treatment increases as compared to control (100 %). Flavonoids possess the antioxidative activity, as they scavange the ROS by locating and neutralizing radicals before they damage the cell structure (Boguszewska and Zagdańska 2012). Flavonoids are known to form complexes with heavy metal, therefore leading to addition in plant defence mechanism (Korkina 2007).…”

Section: Effect Of Copper On Polyphenols and Flavonoids Contentmentioning

confidence: 99%

In vitro evaluation of excess copper affecting seedlings and their biochemical characteristics in Carthamus tinctorius L. (variety PBNS-12)

Gautam

Anjani

2016

Physiol Mol Biol Plants

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The present study was focused to recognize the changes in the Safflower (Carthamus tinctorius L. variety PBNS-12), when exposed to different concentration of copper (25, 50 and 100 μM) along with control (0.5 μM) for 10 and 20 days. This experiment used Hoagland's nutrient solution to meet the external nutrient conditions, which includes micro and macronutrients equivalent to soil solution with copper sulphate (CuSO4. 5H2O) as a metal stress. The plant samples were harvested after 10 and 20 days. The effect of increased concentrations of copper was indicated by the reduction in overall growth with reduced fresh and dry weight. Copper stress caused significant increase in the non- enzymatic antioxidants (polyphenols and flavonoids) in leaves of treated safflower seedlings as compared to the control. Also, enhanced accumulation of proline was observed in the safflower leaves. In response to excess copper concentration, the level of MDA content was found to be increased. The results showed that the copper has time and dose-dependent effects on safflower seedlings.

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ROS as Signaling Molecules and Enzymes of Plant Response to Unfavorable Environmental Conditions

Cited by 29 publications

References 86 publications

Alleviation of salt stress on Moringa peregrina using foliar application of nanofertilizers

Alleviation of salt stress on Moringa peregrina using foliar application of nanofertilizers

Salicylic Acid Mitigates Pb Stress In Nicotiana Tabacum

In vitro evaluation of excess copper affecting seedlings and their biochemical characteristics in Carthamus tinctorius L. (variety PBNS-12)

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