Tolerance of Lisianthus to High Ammonium Levels in Rockwool Culture

Mendoza-Villarreal, Rosalinda; Valdéz-Aguilar, Luis Alonso; Sandoval-Rangel, Alberto; Robledo-Torres, Valentín; Benavides-Mendoza, Adalberto

doi:10.1080/01904167.2014.920379

Cited by 14 publications

(13 citation statements)

References 20 publications

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“…Stem diameter and root length of plants cultivated under high NH4 + /NO3 -without Si were lower than in plants cultivated under low NH4 + /NO3 - (Table 4). Similar effect of NH4 + toxicity on plant growth was observed in E. grandiflorum (Mendoza-Villarreal et al, 2015), C. sativus (Campos et al, 2016) and S. lycopersicum (Barreto et al, 2016;. In contrast, plants cultivated under high NH4 + /NO3 -with Si application had 17% bigger stem diameter (Figure 4a) and 15.4% bigger root length ( Figure 4b) than plants without Si application.…”

Section: Treatmentssupporting

confidence: 66%

“…Ammonium toxicity in plants is due to an increase in reactive oxygen species, as well as a decrease on cytoplasmic pH, photosynthetic rate (Hu et al, 2015), and chlorophyll content, which affects membrane integrity (Kochanová et al, 2014). Moreover, high level of NH4 + competes with other cations, such as K, Ca, and Mg, during plant uptake process, reducing its accumulation; thus, plant DM production (Mendoza-Villarreal et al, 2015;Chen et al, 2016).…”

Section: Researchmentioning

confidence: 99%

“…The reduction in accumulation of these cations in plants grown under high ammoniacal N was also observed by others author in Fragaria spp. (Choi et al, 2011), Eustoma grandiflorum (Mendoza-Villarreal et al, 2015), Sorghum bicolor (Chen et al, 2016), and B. oleracea (Barreto et al, 2017). The nutrient imbalance observed in the ammoniacal system is due to the antagonism effect between NH4 + and the other cations, as they compete for the same Means followed by different lower-case letters indicate Si significant effect within NH4 + and NO3 -ratios and uppercase letters indicate NH4 + and NO3 -ratios significant effect within Si concentrations, according to Tukey's test (P ≤ 0.05).…”

Section: Plant N Si K Ca and Mg Accumulationmentioning

confidence: 99%

“…(Marschner, 2012). In addition, there is an enhancement of NH4 + influx in the plasma membrane, which increase other cations efflux with further extrusion of these cations into the cell vacuole; thus, a deficiency symptoms expression in the plant (Mendoza-Villarreal et al, 2015). Yellow passionfruit seedlings grown in the presence of the beneficial element showed higher K, Ca and Mg shoot accumulation than plants cultivated without Si application, regardless NH4 + concentration ( Table 3).…”

Section: Plant N Si K Ca and Mg Accumulationmentioning

confidence: 99%

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Silicon mitigates ammonium toxicity in yellow passionfruit seedlings

Júnior

Prado

Campos

et al. 2019

Chil. j. agric. res.

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Ammonium (NH4 +) toxicity in yellow passionfruit (Passiflora edulis Sims f. flavicarpa O. Deg.) may be mitigated by Si application. This study aimed to evaluate the interaction effect of Si and high level of NH4 + on yellow passionfruit seedlings nutrition, physiology, growth, and DM production. Pots were filled with pinus bark and nutrition solution was applied. Treatments were arranged in a completely randomized design, with five replicates, in a 2 × 2 factorial scheme: two ratios of NH4 + and nitrate, NO3 + (40/60%, without high level of NH4 + ; and 75/25%, with high level of NH4 +) at N concentration of 13 mmol N L-1 , in the absence and presence of Si (2.0 mmol L-1). Sixty days after seedling transplant it was evaluated: N, Si, K, Ca and Mg root and shoots accumulation, leaf green color index (GCI), electrolyte leakage index (ELI), intracellular CO2 concentration (Ci), transpiration rate (Tr), stomatal conductance (gs), net photosynthesis rate (Pn), stem diameter, leaf area, root length, N use efficiency (NUE) and root and shoot DM content. Plants cultivated with Si had 19.1% and 16.3% lower Tr and gs, respectively, regardless NH4 + concentration. Moreover, Ci and Pn were 13.2% and 16.4%, respectively, higher in plants that received Si. Plants cultivated under high NH4 + concentrations, with Si application had 17% bigger stem diameter and 15.4% bigger root length than plants without Si application. Si application in yellow passionfruit seedlings cultivated with high level of NH4 + increased accumulation and NUE, root length, root DM, and GCI. In addition, Si application reduced ELI, which resulted in higher stem diameter. These results prove that Si application mitigates NH4 + toxicity in yellow passionfruit seedlings.

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Section: Treatmentssupporting

confidence: 66%

Section: Researchmentioning

confidence: 99%

Section: Plant N Si K Ca and Mg Accumulationmentioning

confidence: 99%

Section: Plant N Si K Ca and Mg Accumulationmentioning

confidence: 99%

See 2 more Smart Citations

Silicon mitigates ammonium toxicity in yellow passionfruit seedlings

Júnior

Prado

Campos

et al. 2019

Chil. j. agric. res.

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“…13,14 Generally, most of the crops prefer nitrate source of N, 15 however, plants grown in acidic soils prefer ammonium source. 11 The preference of either source depends on several factors like plant species, 16 stage of the plant, time of application, climate, weather, and location. 17 After uptake, the ammonium ion is mostly assimilated in the root avoiding accumulation of high amounts of free ammonium that would dissipate the transmembrane proton gradients required for respiratory electron transport and for sequestering metabolites in the vacuole.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen preference and genetic variation of cotton genotypes for nitrogen use efficiency

et al. 2020

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BACKGROUND Although nitrogen (N) availability is a major determinant of cotton production, little is known about the importance of plants' preference for ammonium versus nitrate for better growth and nitrogen use efficiency (NUE). We aimed to assess the growth, physiology, and NUE of contrasting N‐efficient cotton genotypes (Z‐1017, N‐efficient and GD‐89, N‐inefficient) supplied with low and high concentrations of ammonium‐ and nitrate‐N. RESULTS The results revealed that ammonium fed plants showed poor root growth, lower dry biomass, N content, leaf chlorophyll and gas exchange than those under nitrate irrespective of the concentration. However, the highest N uptake and utilization efficiency were obtained with nitrate fed plants, which also resulted in the highest dry biomass, N content, leaf chlorophyll and gas exchange as well as root growth. The results further confirmed that N‐efficient (Z‐1017) genotype performed better under both N sources, showing more flexibility to contrasting N condition by increasing growth and NUE in either source of N. Moreover, multivariate analysis showed a strong relationship of root morphological traits with N utilization efficiency, suggesting the physiological importance of roots over shoots in response to low nitrate concentration. CONCLUSION Thus, it was confirmed that nitrate‐N is superior to ammonium‐N and the use of nitrate and N‐efficient genotype is the best option for optimum cotton growth and NUE. Further, field evaluation is required to confirm the hypothesis that nitrate is a preferred N source for better cotton production and NUE. © 2020 Society of Chemical Industry

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