Effect of Exogenous Spermidine on Osmotic Adjustment, Antioxidant Enzymes Activity, and Gene Expression of Gladiolus gandavensis Seedlings Under Salt Stress

Qian, Renjuan; Ma, Xiaojuan; Zhang, Xule; Hu, Qingdi; Liu, Hongjian; Zheng, Jian

doi:10.1007/s00344-020-10198-x

Cited by 31 publications

(18 citation statements)

References 67 publications

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“…Polyamines are linked to ROS metabolism through H 2 O 2 production via their catabolism pathway. Exogenously applied Spd effectively alleviated the damage caused by salt stress by upregulating the antioxidant enzyme activity and expression of their genes in Gladiolus gandavensis seedlings [ 67 ]. Exogenous Spm treatment under salt stress influenced ROS metabolism by upregulating the gene expression of essential antioxidant enzymes superoxide dismutase and catalase in tomato and Mung bean [ 68 ].…”

Section: Discussionmentioning

confidence: 99%

Endogenous Polyamines and Ethylene Biosynthesis in Relation to Germination of Osmoprimed Brassica napus Seeds under Salt Stress

Lechowska

Wojtyla

Quinet

et al. 2021

IJMS

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Currently, seed priming is reported as an efficient and low-cost approach to increase crop yield, which could not only promote seed germination and improve plant growth state but also increase abiotic stress tolerance. Salinity represents one of the most significant abiotic stresses that alters multiple processes in plants. The accumulation of polyamines (PAs) in response to salt stress is one of the most remarkable plant metabolic responses. This paper examined the effect of osmopriming on endogenous polyamine metabolism at the germination and early seedling development of Brassica napus in relation to salinity tolerance. Free, conjugated and bound polyamines were analyzed, and changes in their accumulation were discussed with literature data. The most remarkable differences between the corresponding osmoprimed and unprimed seeds were visible in the free (spermine) and conjugated (putrescine, spermidine) fractions. The arginine decarboxylase pathway seems to be responsible for the accumulation of PAs in primed seeds. The obvious impact of seed priming on tyramine accumulation was also demonstrated. Moreover, the level of ethylene increased considerably in seedlings issued from primed seeds exposed to salt stress. It can be concluded that the polyamines are involved in creating the beneficial effect of osmopriming on germination and early growth of Brassica napus seedlings under saline conditions through moderate changes in their biosynthesis and accumulation.

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Section: Discussionmentioning

confidence: 99%

Endogenous Polyamines and Ethylene Biosynthesis in Relation to Germination of Osmoprimed Brassica napus Seeds under Salt Stress

Lechowska

Wojtyla

Quinet

et al. 2021

IJMS

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“…Salt stress is one of the widely investigated abiotic stress factors because of its clearly reported adverse effects on plant growth and development, as manifested in crop yield loss [1][2][3][4]. Regarding osmotic adjustment, ion toxicity and oxidative stress, the negative Molecules 2021, 26, 4090 2 of 20 effects of salt stress were reported for a quite number of plant species in recent years [5][6][7][8]. These reports suggest that most of the agronomically important crop species are not compatible with high salt levels, as uttered in a review by Parihar et al [4].…”

Section: Introductionmentioning

confidence: 99%

Salt Stress Mitigation via the Foliar Application of Chitosan-Functionalized Selenium and Anatase Titanium Dioxide Nanoparticles in Stevia (Stevia rebaudiana Bertoni)

et al. 2021

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High salt levels are one of the significant and major limiting factors on crop yield and productivity. Out of the available attempts made against high salt levels, engineered nanoparticles (NPs) have been widely employed and considered as effective strategies in this regard. Of these NPs, titanium dioxide nanoparticles (TiO2 NPs) and selenium functionalized using chitosan nanoparticles (Cs–Se NPs) were applied for a quite number of plants, but their potential roles for alleviating the adverse effects of salinity on stevia remains unclear. Stevia (Stevia rebaudiana Bertoni) is one of the reputed medicinal plants due to their diterpenoid steviol glycosides (stevioside and rebaudioside A). For this reason, the current study was designed to investigate the potential of TiO2 NPs (0, 100 and 200 mg L−1) and Cs–Se NPs (0, 10 and 20 mg L−1) to alleviate salt stress (0, 50 and 100 mM NaCl) in stevia. The findings of the study revealed that salinity decreased the growth and photosynthetic traits but resulted in substantial cell damage through increasing H2O2 and MDA content, as well as electrolyte leakage (EL). However, the application of TiO2 NPs (100 mg L−1) and Cs–Se NPs (20 mg L−1) increased the growth, photosynthetic performance and activity of antioxidant enzymes, and decreased the contents of H2O2, MDA and EL under the saline conditions. In addition to the enhanced growth and physiological performance of the plant, the essential oil content was also increased with the treatments of TiO2 (100 mg L−1) and Cs–Se NPs (20 mg L−1). In addition, the tested NPs treatments increased the concentration of stevioside (in the non-saline condition and under salinity stress) and rebaudioside A (under the salinity conditions) in stevia plants. Overall, the current findings suggest that especially 100 mg L−1 TiO2 NPs and 20 mg L−1 Cs–Se could be considered as promising agents in combating high levels of salinity in the case of stevia.

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“…Differently, the expression of Cu/ZnSOD showed no signi cant change, while CAT gene expression up-regulated in leaves of rice with the extension of salt treatment time (Rossatto et al 2017). Qian et al (2020) also observed that salt stress promoted the activity of antioxidant enzymes and up-regulated the expression of CAT and POD in Gladiolus gandavensis seedlings. Therefore, the expression of antioxidant enzyme genes due to salt stress was different in various plants.…”

Section: Changes Of Oxidative Damage and Ros Accumulation Under Different Treatmentsmentioning

confidence: 77%

Effects of tea polyphenols on the activities of antioxidant enzymes and the expression of related gene in the leaves of wheat seedlings under salt stress

et al. 2021

Environ Sci Pollut Res

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Longchun 30, a new wheat variety, was used to investigate seedling growth, element absorption and antioxidant response under 150 mM NaCl and tea polyphenols (TP) (25 and 100 mg L − 1 ) treatments alone or in combination, thus revealing TP-alleviating mechanism on the salt damage to plants. 150 mM NaCl stress alone inhibited the seedling growth, increased sodium content and reactive oxygen species (ROS) accumulation, but reduced potassium (K) and calcium (Ca) levels at different culture times, thus resulting in the oxidative damage to the leaves. Even though TP treatment alone led to the signi cant increase of ROS generation, TP-treated leaves exhibited the reduction of relative electrical conductivity and no change of malondialdehyde content. Moreover, high TP concentration alone stimulated the seedling growth. In addition, the activities and gene expression of superoxide dismutase, catalase and peroxidase (POD) as well as diamine oxidase and polyamine oxidase were changed to different degrees due to NaCl or TP treatment alone. Further study showed that the presence of TP promoted the seedling growth, increased K + and Ca 2+ contents, and led to the reduction of ROS accumulation. Taken together, salinity-inhibitory effect on the growth of wheat seedlings might be associated with salt-induced imbalance of element content and the increase of oxidative damage resulting from ROS accumulation, while the application of TP effectively alleviated salinity-inhibitory effect on the seedling growth and improved the tolerance of wheat seedlings to salt environment, which might be associated with the increases of K + and Ca 2+ contents as well as the reduction of oxidative damage in the leaves of wheat seedlings under NaCl and TP treatment in combination.

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Effect of Exogenous Spermidine on Osmotic Adjustment, Antioxidant Enzymes Activity, and Gene Expression of Gladiolus gandavensis Seedlings Under Salt Stress

Cited by 31 publications

References 67 publications

Endogenous Polyamines and Ethylene Biosynthesis in Relation to Germination of Osmoprimed Brassica napus Seeds under Salt Stress

Endogenous Polyamines and Ethylene Biosynthesis in Relation to Germination of Osmoprimed Brassica napus Seeds under Salt Stress

Salt Stress Mitigation via the Foliar Application of Chitosan-Functionalized Selenium and Anatase Titanium Dioxide Nanoparticles in Stevia (Stevia rebaudiana Bertoni)

Effects of tea polyphenols on the activities of antioxidant enzymes and the expression of related gene in the leaves of wheat seedlings under salt stress

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