Effects of water and exogenous Si on element concentrations and ecological stoichiometry of plantain (<i>Plantago lanceolata</i>L.)

Long, M. I. E.; Guo, Lixiang; Li, Jing; Cui, Yu; Hu, Tianming; Yue, Jiaming; He, Shenggen

doi:10.1080/01904167.2018.1443128

Cited by 12 publications

(6 citation statements)

References 55 publications

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“…The increased Si availability in quinoa organs alters the C, N and P contents, similar behavior has been reported for other plant species in studies that proved that Si partially controls the C flow while altering the N and P levels 8 , 30 , 31 . Our results indicate that increased Si supply reduced C content in most plant organs (Fig.…”

Section: Discussionsupporting

confidence: 82%

Silicon modifies C:N:P stoichiometry, and increases nutrient use efficiency and productivity of quinoa

Lata-Tenesaca

Prado

Píccolo

et al. 2021

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Recognizably, silicon has a beneficial effect on plant growth and productivity. In this respect, it is also known that the C, N and, P stoichiometric ratios and nutrient conversion efficiency allow identifying the interactions between elements while helping to understand the role Si plays in plant growth. This study aims to investigate whether increasing Si concentrations (0, 1, 2, and 3 mmol L−1) supplied in the nutrient solution is uptaken by quinoa, modifies the C:N:P stoichiometry while increasing nutritional efficiency and crop productivity as well. Our results revealed that the Si supply by promoting a decline in the C levels, associated with greater uptake of N and P, especially decreased the C:N and C:P ratios, favoring the C metabolism efficiency, and modulated the N and P use efficiency for biomass accumulation. This improved nutritional performance and greater use efficiency of C directly favored quinoa productivity. The future perspective is to encourage new field studies with this species to adjust silicon fertilization management to different soils aiming at enhancing quinoa productivity on a sustainable basis.

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Section: Discussionsupporting

confidence: 82%

Silicon modifies C:N:P stoichiometry, and increases nutrient use efficiency and productivity of quinoa

Lata-Tenesaca

Prado

Píccolo

et al. 2021

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“… 34 - 36 Therefore, when Si promotes nutrient absorption by the stressed plant, as found in other species such as banana. 37 Silicon is taken up from the soil by plants through roots via aquaporin channels 38 and accumulated in plants, mostly depends on environmental factors such as water contents, Si availability and temperature. 39 Silicon is a universal player to mitigate the metal toxicity by enhancing the metabolic activities in polluted environments.…”

Section: Introductionmentioning

confidence: 99%

Silicon Application Modulates Growth, Physio-Chemicals, and Antioxidants in Wheat (Triticum aestivum L.) Exposed to Different Cadmium Regimes

et al. 2021

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Silicon (Si) application enhanced the tolerance of plants against different environmental stresses. Therefore, objective of the study revealed that foliar applied Si alleviates the adverse effect of Cd by enhancing the growth, metabolite accumulation, strengthening the antioxidant defense system, reducing oxidative injury, improving plant nutrient status, and decreasing the Cd uptake in wheat. The surface sterilized seeds of Sahar-2006 (tolerant) and Inqalab-91 (sensitive) having the differential metal tolerance capacity were sown in plastic pots containing normal and Cd spiked sandy loamy soil. The design of experiments was completely randomized with 3 replicates per treatment. Two weeks after germination, plants were sprayed with different concentrations of Si (1.5 and 3 mM) with 0.1% surfactant in the form of Tween-20. The plants were harvested after 2 weeks of Si application to determine various attributes. High concentration of Cd (25 mg kg-1) decreased growth-related-attributes, essential nutrient uptake and increase the levels of oxidative stress indicators. The application of Si increased the growth-related attributes, photosynthetic pigments, essential nutrient uptake and also enhanced the activities of various antioxidant compounds (superoxide dismutase (SOD), peroxidase (POD, ascorbate peroxidase (APX) and catalase (CAT) by decreasing the contents of oxidative stress indicators and Cd uptake in root and shoot of both wheat cultivars. Sahar-2006 cultivar showed more tolerance to Cd regimes than that of Inqalab-91 as clear from greater plant dry masses. Thus, our results showed that the applied Si level (3 mM) is an efficient strategy for field use in the areas, where slightly Cd polluted soils limit the agriculture production.

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“…The decrease in the C:Si ratio in plants grown under water restriction is a result of Si supply, which increased the absorption of this element and decreased C content in both pastures. Long et al 28 also reported the importance of silicon in elementary stoichiometry in a study with banana trees under water deficit.…”

Section: Resultsmentioning

confidence: 97%

“…Recent research has indicated that Si absorption improves its physiological aspects mainly by modifying elemental stoichiometry and could minimize damage from water deficit 25 – 27 . However, most studies on stoichiometric homeostasis focus mainly on N and P, studies on the Si are incipient 28 , 29 .…”

Section: Introductionmentioning

confidence: 99%

New outcomes on how silicon enables the cultivation of Panicum maximum in soil with water restriction

Rocha

Prado

Píccolo

2022

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Climate change increases the occurrence of droughts, decreasing the production of tropical forages through the induction of physiological stress. Si is expected to broaden the limit from physiological stress of forages grown under water restriction, which may come from an improvement in the stoichiometric homeostasis of Si with N and C, favoring physiological aspects. This study assessed whether Si supply via fertigation improves physiological aspects and the water content in the plant by means of an antioxidant defense system and changes in the C:N:Si stoichiometry during the regrowth of two cultivars of Panicum maximum grown under two soil water regimes (70 and 40% of the soil’s water retention capacity). The forages studied are sensitive to water deficit without silicon supply. The application of Si via fertigation attenuated the water deficit, favoring plant growth by stabilizing the stoichiometric homeostasis C:N and C:Si, which are responsible for increasing the plant capacity of converting accumulated C in dry mass, favoring the water content of the plant tissue and the photosynthetic efficiency. This study highlights the importance of the physiological function of Si, and effects on the stoichiometry of C and N, which are neglected in most research on forages grown under water restriction.

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Effects of water and exogenous Si on element concentrations and ecological stoichiometry of plantain (Plantago lanceolataL.)

Cited by 12 publications

References 55 publications

Silicon modifies C:N:P stoichiometry, and increases nutrient use efficiency and productivity of quinoa

Silicon modifies C:N:P stoichiometry, and increases nutrient use efficiency and productivity of quinoa

Silicon Application Modulates Growth, Physio-Chemicals, and Antioxidants in Wheat (Triticum aestivum L.) Exposed to Different Cadmium Regimes

New outcomes on how silicon enables the cultivation of Panicum maximum in soil with water restriction

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