Abstract:The kernel water concentration (KWC) varies more intensely during the physiological dehydration phase, and the dehydration process during this phase has been demonstrated to be closely associated with internal physiological processes in maize kernels. To better illustrate the physiological dehydration process (PDP) of maize kernels, moisture characteristic parameters were consecutively recorded after pollination, and the timing of the occurrence of net water loss was confirmed. Additionally, a tandem mass tag … Show more
“…The protein extraction, digestion, TMT labeling, and liquid chromatography-tandem mass spectrometry (LC−MS/MS) were performed according to our previous protocols. 28 An automated software called IQuant was used for quantitatively analyzing the labeled peptides with isobaric tags. 29 To assess the confidence of peptides, the peptide-spectrum matches (PSMs) were pre-filtered at a PSM-level false discovery rate of 1%.…”
Section: Methodsmentioning
confidence: 99%
“…The flour samples of WT, Bx7d, and By8d were selected for the tandem mass tag (TMT)-based proteomics analysis. The protein extraction, digestion, TMT labeling, and liquid chromatography-tandem mass spectrometry (LC–MS/MS) were performed according to our previous protocols . An automated software called IQuant was used for quantitatively analyzing the labeled peptides with isobaric tags .…”
A set
of high-molecular-weight glutenin subunit (HMW-GS)
deletion
lines were used to investigate the influences of HMW-GS on wheat gluten,
and dough properties were investigated using a set of HMW-GS deletion
lines. Results showed that HMW-GS deletion significantly decreased
the dough stability time, as well as viscoelastic moduli (G′ and G″), compared with
the wild type, where the deletion of x-type HMW-GSs (Ax1d, Bx7d, and
Dy12d) decreased more than y-type HMW-GSs (By8d and Dy12d). The deletion
of HMW-GS significantly decreased HMW-GS contents and increased α-/γ-gliadin
contents. A proteomic study showed that the HMW-GS deletion down-regulated
the HMW-GS, β-amylase, serpins, and protein disulfide isomerase
and up-regulated the LMW-GS, α/γ-gliadin, and α-amylase
inhibitor. Meanwhile, HMW-GS deletion significantly decreased contents
of β-turn and β-sheet. In addition, less energetically
stable disulfide conformations (trans–gauche–gauche
and trans–gauche–trans) were abundant in HMW-GS deletion
lines. Furthermore, analysis of five HMW-GSs based on amino acid sequences
proved that Dx2 and Bx7 had a more stable structure, followed by Ax1,
then Dy12, and finally By8.
“…The protein extraction, digestion, TMT labeling, and liquid chromatography-tandem mass spectrometry (LC−MS/MS) were performed according to our previous protocols. 28 An automated software called IQuant was used for quantitatively analyzing the labeled peptides with isobaric tags. 29 To assess the confidence of peptides, the peptide-spectrum matches (PSMs) were pre-filtered at a PSM-level false discovery rate of 1%.…”
Section: Methodsmentioning
confidence: 99%
“…The flour samples of WT, Bx7d, and By8d were selected for the tandem mass tag (TMT)-based proteomics analysis. The protein extraction, digestion, TMT labeling, and liquid chromatography-tandem mass spectrometry (LC–MS/MS) were performed according to our previous protocols . An automated software called IQuant was used for quantitatively analyzing the labeled peptides with isobaric tags .…”
A set
of high-molecular-weight glutenin subunit (HMW-GS)
deletion
lines were used to investigate the influences of HMW-GS on wheat gluten,
and dough properties were investigated using a set of HMW-GS deletion
lines. Results showed that HMW-GS deletion significantly decreased
the dough stability time, as well as viscoelastic moduli (G′ and G″), compared with
the wild type, where the deletion of x-type HMW-GSs (Ax1d, Bx7d, and
Dy12d) decreased more than y-type HMW-GSs (By8d and Dy12d). The deletion
of HMW-GS significantly decreased HMW-GS contents and increased α-/γ-gliadin
contents. A proteomic study showed that the HMW-GS deletion down-regulated
the HMW-GS, β-amylase, serpins, and protein disulfide isomerase
and up-regulated the LMW-GS, α/γ-gliadin, and α-amylase
inhibitor. Meanwhile, HMW-GS deletion significantly decreased contents
of β-turn and β-sheet. In addition, less energetically
stable disulfide conformations (trans–gauche–gauche
and trans–gauche–trans) were abundant in HMW-GS deletion
lines. Furthermore, analysis of five HMW-GSs based on amino acid sequences
proved that Dx2 and Bx7 had a more stable structure, followed by Ax1,
then Dy12, and finally By8.
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