Nitrogen topdressing timing modifies the gluten quality and grain hardness related protein levels as revealed by iTRAQ

Zhong, Yingxin; Wang, Weiling; Huang, Xin; Liu, Mingming; Hebelstrup, Kim H.; Yang, Donglei; Cai, Jian; Wang, Xiao; Zhou, Qin; Cao, Weixing; Dai, Tingbo; Jiang, Dong

doi:10.1016/j.foodchem.2018.10.071

Cited by 27 publications

(29 citation statements)

References 36 publications

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“…Vasil and Anderson (1997) stated that the HMW-GS alleles 1Ax1 and 1Ax2* and the 1Dx5 + 1Dy10 subunit pair are associated with stronger dough and better baking properties, and the 1Dx2 + 1Dy12 pair with weaker dough. Both can be improved through N fertilization strategies, such as the rates and timing of N fertilization Zhong et al, 2019). Both PAN3497 and SST806 had subunits 2 + 12, but they both have excellent baking quality.…”

Section: Resultsmentioning

confidence: 99%

“…High yield and good bread-making quality are the most important characteristics in the wheat industry. Both can be improved through N fertilization strategies, such as the rates and timing of N fertilization Zhong et al, 2019). Yu et al (2018) reported that grain protein content was more sensitive to N application than grain yield and that protein content was mainly determined by genotype.…”

Section: Resultsmentioning

confidence: 99%

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Effects of different fertilization levels on the concentration of high molecular weight glutenin subunits of two spring, hard red bread wheat cultivars

et al. 2019

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Backgrounds and objectives:High molecular weight gluten subunits (HMW-GS) are generally considered to play a key role in gluten formation and structure and are closely related to wheat quality. In this study, two spring wheat cultivars (PAN3497 and SST806) with the same HMW-GS composition (1Ax1, 1Bx7, 1By8, 1Dx2, and 1Dy12) were tested in the greenhouse, over 2 years, in order to determine how different genetic backgrounds, and low-nitrogen and low-phosphorus treatments, influenced the expression and quantity of the HMW-GS, as measured by reverse-phase high-performance liquid chromatography (RP-HPLC). Findings: Cultivar effect was highly significant for all HMW-GS, except for 1By8.A large treatment effect was found on subunits 1Ax1, 1Dy12, and 1By8. Cultivar-bytreatment interaction was highly significant and contributed to variation of subunit 1Dx2. Subunits 1Dy12 and 1By8 were highly influenced by low-N conditions. Ratio of HMW-GS x type/y type was higher for PAN3497 than for SST806. Furthermore, a strong treatment effect was observed for the ratio of x type/y type, which was 45% higher in PAN3497 under optimal and low-N conditions, compared to SST806. Conclusions: This study showed that fertilization level had a considerable effect on HMW-GS composition and on FPC, with low-N conditions having the largest influence, followed by a combination of low N and low P. Significance and novelty: The results highlighted the importance of the y-type subunits in the bread wheat quality breeding programs, especially under low-N and low-P growing conditions. K E Y W O R D Sabiotic stress, glutenin subunits, nutrient deficiency, wheat quality

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effects of different fertilization levels on the concentration of high molecular weight glutenin subunits of two spring, hard red bread wheat cultivars

et al. 2019

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“…However, after the vegetative growth stage, the aboveground may have more effects on secondary metabolism, including SG synthesis, than on biomass accumulation. Such functions have been primarily demonstrated in the establishment of wheat grain quality (Bogard et al 2010;Zhong et al 2019). The relationships between N accumulation and TSG production at different growth stages were also described (Fig.…”

Section: N and Tsg Accumulation At Different Growth Stagesmentioning

confidence: 88%

Optimized Nitrogen Topdressing Strategies Enhance Steviol Glycoside Productivity in Stevia (Stevia rebaudiana Bertoni) Plants

Sun

Yang

Hou

et al. 2020

J Soil Sci Plant Nutr

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The nitrogen (N) management is crucial to stevia growth and steviol glycoside (SG) production. Although previous studies have concentrated on the impacts caused by N fertilization rates, very few studies are concerning N topdressing strategies. We hypothesized that stevia biomass and SG productivity can be effectively increased by altering the ratio of base fertilization:first topdressing at the seedling stage:second topdressing at the branching stage. The current plot experiment was undertaken to evaluate such effects. Compared with one-time basal fertilization, optimized N topdressing ratios (especially the 5:3:2 and 4:3:3 ratios) significantly enhanced the leaf biomass formation and aboveground N accumulation. Different results were observed for the leaf SG concentrations, and increasing the topdressing proportions critically reduced the total leaf SG concentrations (3.3-24.7%) at the harvest stage. The highest values for total SG accumulation were exhibited under the 6:4:0 and 5:3:2 topdressing strategies, which depend on the changes in biomass and SG concentration. Moreover, a significant negative correlation between leaf SGs and the N concentration was observed at all growth stages, but a positive correlation was observed with the leaf C/N ratio and soluble sugar concentrations. Our results suggest the potential for increasing SG productivity by optimizing N fertilization regimes, especially with an appropriate reduction in the topdressing ratio after the vegetative growth stage. Our findings further expanded the effect of topdressing strategies on SG production based on the N fertilization levels.

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“…Although wheat breeders attempt to select high quality varieties with strong gluten and high yield, many low-quality wheat varieties still persist. Therefore, numerous studies have focused on improving the grain quality in wheat production [3,4]. The quality of wheat is affected by the genotype, growing conditions, and their interactions [5].…”

Section: Introductionmentioning

confidence: 99%

“…However, excessive N application reduces N use efficiency and increases the risk of environmental pollution [7], supplementary agronomic methods should be explored to reduce these concerns. Previous studies have applied various nitrogen fertilizer strategies in terms of the rates, timing, type of N fertilizer, and soil N availability [4,8] to better utilize the applied N and increase the GPC in wheat production. The split of N fertilizer and the modification of topdressing time increases the GPC and gluten proportions without increasing the N dose [6,7].…”

Section: Introductionmentioning

confidence: 99%

Effects of Nitrogen Application in the Wheat Booting Stage on Glutenin Polymerization and Structural–Thermal Properties of Gluten with Variations in HMW-GS at the Glu-D1 Locus

Song

Zhao

et al. 2020

Foods

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Wheat gluten properties can be improved by the application of nitrogen. This study investigates the effects of nitrogen application in the booting stage on glutenin polymerization during grain-filling and structural–thermal properties of gluten based on the high-molecular-weight glutenin subunits (HMW-GSs) using near-isogenic lines (Glu-1Da and Glu-1Dd). The nitrogen rate experiment included rates of 0, 60, 90, and 120 kg N ha−1 applied with three replicates. Nitrogen significantly improved the grain quality traits (wet gluten contents, Zeleny sedimentation values, and maximum resistance) and dough strength (dough development time, dough stability time, and protein weakening), especially in wheat with the Glu-1Da allele. Nitrogen increased the protein composition contents, proportions of glutenins and HMW-GSs, and disulfide bond concentration in the flours of Glu-1Da and Glu-1Dd, and accelerated the polymerization of glutenins (appearing as glutenin macropolymer) during grain-filling, where nitrogen enhanced the accumulation and polymerization of glutenins more for line containing Glu-1Da than Glu-1Dd. The β-sheets, α-helix/β-sheet ratio, microstructures, and thermal stability were also improved to a greater degree by nitrogen for gluten with Glu-1Da compared to Glu-1Dd. Nitrogen treatment was highly effective at improving the gluten structural‒thermal properties of wheat in the booting stage, especially with inferior glutenin subunits.

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Nitrogen topdressing timing modifies the gluten quality and grain hardness related protein levels as revealed by iTRAQ

Cited by 27 publications

References 36 publications

Effects of different fertilization levels on the concentration of high molecular weight glutenin subunits of two spring, hard red bread wheat cultivars

Effects of different fertilization levels on the concentration of high molecular weight glutenin subunits of two spring, hard red bread wheat cultivars

Optimized Nitrogen Topdressing Strategies Enhance Steviol Glycoside Productivity in Stevia (Stevia rebaudiana Bertoni) Plants

Effects of Nitrogen Application in the Wheat Booting Stage on Glutenin Polymerization and Structural–Thermal Properties of Gluten with Variations in HMW-GS at the Glu-D1 Locus

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