Minimizing Adverse Effects of Pb on Maize Plants by Combined Treatment with Jasmonic, Salicylic Acids and Proline
TLDR
In this paper, the effect of exogenous applications of jasmonic acid (JA), salicylic acid (SA), and osmoprotectants such as proline (Pro) on maize growth and productivity was investigated.Abstract:
Lead (Pb) is a toxic heavy metal (HM) that harms plant growth and productivity. Phytohormones, such as jasmonic acid (JA) and salicylic acid (SA), and osmoprotectants, such as proline (Pro), play an important role in the physiological and biochemical processes of plants. We investigated the effect of exogenous applications of JA, SA, Pro, and their combination on Pb-stress tolerance in maize as well as their effect on physiological, biochemical, and yield traits. Pb exposure severely affected maize plants, reducing growth, yield, photosynthetic pigments, and mineral (nitrogen, phosphorus, and potassium) nutrients, as well as enhancing electrolyte leakage (EL), malondialdehyde (MDA) accumulation, osmolytes, and non-enzymatic and enzymatic antioxidants. The application of JA, SA, Pro, and their combination enhanced plant growth and induced pigment biosynthesis, and decreased EL, MDA accumulation, and Pb concentration. All treatments enhanced Pro and total soluble sugar production, glutathione activity, ascorbic acid, phenol, superoxide dismutase, catalase, peroxidase, and mineral nutrients. JA, SA, and Pro application improved physiological processes directly or indirectly, thereby enhancing the ability of maize plants to overcome oxidative damage caused by Pb toxicity. The combination of JA, SA, and Pro was the most efficient treatment for maize plant growth and development, eliminating the negative consequences of Pb stress.read more
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Journal ArticleDOI
Jasmonic acid: a key frontier in conferring abiotic stress tolerance in plants.
Ali Raza,Sidra Charagh,Zainab Zahid,Muhammad Salman Mubarik,Rida Javed,Manzer H. Siddiqui,Mirza Hasanuzzaman +6 more
TL;DR: The biosynthesis and metabolism of JA and its protective role against different abiotic stresses are documented and JA-mediated antioxidant potential and its crosstalk with other PGRs have also been discussed.
Journal ArticleDOI
Function and Mechanism of Jasmonic Acid in Plant Responses to Abiotic and Biotic Stresses.
TL;DR: In this paper, the crosstalk of JAs with other phytohormones, including auxin, gibberellic acid, salicylic acid, brassinosteroid, ethylene, and abscisic acid is discussed.
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Silicon Alleviates Copper Toxicity in Flax Plants by Up-Regulating Antioxidant Defense and Secondary Metabolites and Decreasing Oxidative Damage
TL;DR: In this paper, the effects of silicon (Si) on copper (Cu) toxicity in two flax genotypes (Sakha 1 and Sakha 2) as it relates to plant growth, yield attributes, total chlorophyll, nucleic acid content, enzymatic and nonenzymatic antioxidants, oxidative damage, lipid peroxidation, copper and silicon content, and fatty acid composition.
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Glycine Betaine Accumulation, Significance and Interests for Heavy Metal Tolerance in Plants.
Shafaqat Ali,Shafaqat Ali,Zohaib Abbas,Mahmoud F. Seleiman,Mahmoud F. Seleiman,Muhammad Rizwan,İlkay Yavaş,Bushra Ahmed Alhammad,Ashwag Shami,Mirza Hasanuzzaman,Dimitris Kalderis +10 more
TL;DR: Application of GB on plants under HMs stress successfully improves growth, photosynthesis, antioxidant enzymes activities, nutrients uptake, and minimizes excessive heavy metal uptake and oxidative stress.
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Exogenous Potassium Treatments Elevate Salt Tolerance and Performances of Glycine max L. by Boosting Antioxidant Defense System under Actual Saline Field Conditions
Ragab S. Taha,Mahmoud F. Seleiman,Majed A. Alotaibi,Bushra Ahmed Alhammad,Mostafa M. Rady,Ayman H. A. Mahdi +5 more
TL;DR: In this paper, two field trials were carried out over two seasons of 2018 and 2019 to investigate the enhancement of different methods of potassium application (i.e., recommended soil amendment (control; K2O), seed soaking (SS) and foliar spray (FS) in the form of potassium sulfate (K2SO4, 6 mM)) on antioxidant protection, physio-biochemical, yield and quality traits of soybean (cv. Giza 22).
References
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