Mechanisms of Silicon-Mediated Amelioration of Salt Stress in Plants

Liu, Boling; Soundararajan, Prabhakaran; Manivannan, Abinaya

doi:10.3390/plants8090307

Cited by 103 publications

(60 citation statements)

References 97 publications

(125 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another probable mechanism of Si increasing shoot [C] is enhanced the proline concentration, which can be degraded, and used as a source of C in plants recovering from salt stress as well as a membrane stabilizer and a free radical scavenger ( Al-Huqail et al, 2017 ; Li et al, 2018 ; Mansour and Ali, 2017 ). Increasing the photosynthesis rate is another mechanism whereby Si maintains the C concentration in salt-stressed plants ( Asrar et al, 2017 ; Liu et al, 2019 ). Thus, it was deduced that Si play an important role in the increased [C] in intermediate-Si accumulating plant (sunflower) grown under salinity conditions.…”

Section: Discussionmentioning

confidence: 99%

Silicon application induces changes C:N:P stoichiometry and enhances stoichiometric homeostasis of sorghum and sunflower plants under salt stress

Hurtado

Chiconato

Prado

et al. 2020

Saudi Journal of Biological Sciences

View full text Add to dashboard Cite

Beneficial effects of silicon (Si) on growth have been observed in some plant species, reportedly due to stoichiometric changes of C, N, and P. However, little is known about the effects on the stoichiometric relationships between C, N, and P when silicon is supplied via different modes in sorghum and sunflower plants under salt stress conditions. Therefore, the current study was performed to investigate the impact of differing modes of Si supply on shoot biomass production and C:N:P stoichiometry in sorghum and sunflower plants under salt stress. Two experiments were performed in a glass greenhouse using the strong Si-accumulator plant sorghum, as well as the intermediate type Si-accumulator sunflower, both of which were grown in pots filled with washed sand. Plant species were cultivated for 30 days in the absence or presence of salt stress (0 or 100 mM) and supplemented with one of four Si treatments: control plants (without Si), 28.6 mmol Si L −1 via foliar application, 2.0 mmol Si L −1 via nutrient solution, and combined application of foliar and nutrient solution, each group with five replications. The results revealed that supplied Si modified the C, N, and P concentrations, thereby enhancing the C:N:P stoichiometry and shoot dry matter of sorghum and sunflower plants under salt stress. Both application of Si via nutrient solution, as well as combined application via foliar and nutrient solution, increased the C:N ratio in both plant species under salt stress, but in sorghum plants decreased the C:P and N:P ratios and increased the shoot biomass production by 39%, while in sunflower plants increased the C:P and N:P ratios and increased the shoot biomass production by 24%. Our findings suggest that salt stress alleviation by Si impacts C:N:P stoichiometric relationships in a variable manner depending on the ability of the species to accumulate Si, as well as the route of Si administration.

show abstract

Section: Discussionmentioning

confidence: 99%

Silicon application induces changes C:N:P stoichiometry and enhances stoichiometric homeostasis of sorghum and sunflower plants under salt stress

Hurtado

Chiconato

Prado

et al. 2020

Saudi Journal of Biological Sciences

View full text Add to dashboard Cite

show abstract

“…Premature aging of leaves, followed by chlorosis or necrosis may occur due to sodium chloride (NaCl) entering protein synthesis, enzyme activity and photosynthesis. In order for plants to cope with salt stress; it should increase ions excretion, osmotic tolerance, redox homeostasis, and photosynthesis efficiency [19].…”

Section: Salinity Stressmentioning

confidence: 99%

How Abiotic Stress Conditions Affects Plant Roots

Kul¹,

Ekinci²,

Turan³

et al. 2021

Plant Roots

View full text Add to dashboard Cite

Roots are generally subject to more abiotic stress than shoots. Therefore, they can be affected by such stresses as much as, or even more, than above ground parts of a plant. However, the effect of abiotic stresses on root structure and development has been significantly less studied than above ground parts of plants due to limited availability for root observations. Roots have functions such as connecting the plant to the environment in which it grows, uptaking water and nutrients and carrying them to the above-ground organs of the plant, secreting certain hormones and organic compounds, and thus ensuring the usefulness of nutrients in the nutrient solution. Roots also send some hormonal signals to the body in stress conditions such as drought, nutrient deficiencies, salinity, to prevent the plant from being damaged, and ensure that the above-ground part takes the necessary precautions to adapt to these adverse conditions. Salinity, drought, radiation, high and low temperatures, heavy metals, flood, and nutrient deficiency are abiotic stress factors and they negatively affect plant growth, productivity and quality. Given the fact that impending climate change increases the frequency, duration, and severity of stress conditions, these negative effects are estimated to increase. This book chapter reviews to show how abiotic stress conditions affect growth, physiological, biochemical and molecular characteristics of plant roots.

show abstract

“…Silicon was considered both plant nutrient [57] and plant biostimulant [64]. The mechanisms behind silicon's actions on plants are understood only at physiological level [65][66][67] without a biochemical basis-the exact biochemical reactions in which silicon is involved are not yet known [67]. Despite the lack of biochemical/metabolic evidences, silicon is still considered a plant nutrient-a non-essential one [68].…”

Section: Discussionmentioning

confidence: 99%

Plant Biostimulant Effects of Baker’s Yeast Vinasse and Selenium on Tomatoes through Foliar Fertilization

et al. 2020

View full text Add to dashboard Cite

The application of selenium (Se) to tomatoes enhances accumulation of bioactive compounds. The physiological window of Se is very narrow, and Se overdose reduces the yield. Glycine betaine was shown to reduce Se’s negative effects on plants and to potentiate its beneficial effects. In this study, baker’s yeast vinasse (BYV), as an affordable source of glycine betaine, was tested for its interaction with Se in an optimized foliar fertilizer. The application dose was selected after a laboratory experiment, wherein assays on plant height, leaves surfaces, stomatal conductance, and chlorophyll fluorescence were done. The Se and BYV supplemented foliar fertilizers were tested for their effects on accumulation of bioactives in drip-irrigated tomatoes cultivated in a greenhouse. Under laboratory conditions, assays demonstrated Se and BYV induced effects on tomatoes plants. Both the stomatal conductance and photosynthesis efficiency increased compared to a water treated control. The greenhouse experiment demonstrated that BYV and Se addition increases the number of tomato fruits in the “extra” marketable class and enhances the accumulation of ascorbic acid, carotenes, polyphenols, and flavonoids. The effects depend on the composition of the foliar fertilizer, the most significant effects being recorded for the foliar applied product with the highest BYV and nitrogen content.

show abstract

Mechanisms of Silicon-Mediated Amelioration of Salt Stress in Plants

Cited by 103 publications

References 97 publications

Silicon application induces changes C:N:P stoichiometry and enhances stoichiometric homeostasis of sorghum and sunflower plants under salt stress

Silicon application induces changes C:N:P stoichiometry and enhances stoichiometric homeostasis of sorghum and sunflower plants under salt stress

How Abiotic Stress Conditions Affects Plant Roots

Plant Biostimulant Effects of Baker’s Yeast Vinasse and Selenium on Tomatoes through Foliar Fertilization

Contact Info

Product

Resources

About