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Your search keyword '"Cricelli, S"' showing total 2 results
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2 results on '"Cricelli, S"'

1. Diurnal changes in water soluble carbohydrate components in leaves and sucrose associated TaSUT1 gene expression during grain development in wheat

Author

Al-Sheikh Ahmed, S., Zhang, J., Farhan, H., Zhang, Y.J., Yu, Z., Islam, S., Chen, J., Cricelli, S., Foreman, A., Van den Ende, W., Ma, W., Dell, B., Al-Sheikh Ahmed, S., Zhang, J., Farhan, H., Zhang, Y.J., Yu, Z., Islam, S., Chen, J., Cricelli, S., Foreman, A., Van den Ende, W., Ma, W., and Dell, B.

Abstract

In plant tissues, sugar levels are determined by the balance between sugar import, export, and sugar synthesis. So far, water soluble carbohydrate (WSC) dynamics have not been investigated in a diurnal context in wheat stems as compared to the dynamics in flag leaves during the terminal phases of grain filling. Here, we filled this research gap and tested the hypothesis that WSC dynamics interlink with gene expression of TaSUT1. The main stems and flag leaves of two genotypes, Westonia and Kauz, were sampled at four hourly intervals over a 24 h period at six developmental stages from heading to 28 DAA (days after anthesis). The total levels of WSC and WSC components were measured, and TaSUT1 gene expression was quantified at 21 DAA. On average, the total WSC and fructan levels in the stems were double those in the flag leaves. In both cultivars, diurnal patterns in the total WSC and sucrose were detected in leaves across all developmental stages, but not for the fructans 6-kestose and bifurcose. However, in stems, diurnal patterns of the total WSC and fructan were only found at anthesis in Kauz. The different levels of WSC and WSC components between Westonia and Kauz are likely associated with leaf chlorophyll levels and fructan degradation, especially 6-kestose degradation. High correlation between levels of TaSUT1 expression and sucrose in leaves indicated that TaSUT1 expression is likely to be influenced by the level of sucrose in leaves, and the combination of high levels of TaSUT1 expression and sucrose in Kauz may contribute to its high grain yield under well-watered conditions.

Published
2020

2. Diurnal Changes in Water Soluble Carbohydrate Components in Leaves and Sucrose Associated TaSUT1 Gene Expression during Grain Development in Wheat.

Author

Al-Sheikh Ahmed S, Zhang J, Farhan H, Zhang Y, Yu Z, Islam S, Chen J, Cricelli S, Foreman A, Ende WVD, Ma W, and Dell B

Subjects
Carbohydrate Metabolism drug effects, Carbohydrates chemistry, Circadian Rhythm physiology, Dehydration genetics, Dehydration metabolism, Droughts, Edible Grain drug effects, Edible Grain genetics, Edible Grain metabolism, Gene Expression Regulation, Developmental drug effects, Gene Expression Regulation, Plant drug effects, Monosaccharide Transport Proteins metabolism, Plant Leaves drug effects, Plant Leaves genetics, Plant Proteins genetics, Plant Proteins metabolism, Seeds drug effects, Seeds genetics, Seeds growth & development, Seeds metabolism, Solubility, Water chemistry, Water pharmacology, Carbohydrate Metabolism genetics, Monosaccharide Transport Proteins genetics, Plant Leaves metabolism, Sucrose metabolism, Triticum drug effects, Triticum genetics, Triticum growth & development, Triticum metabolism
Abstract

In plant tissues, sugar levels are determined by the balance between sugar import, export, and sugar synthesis. So far, water soluble carbohydrate (WSC) dynamics have not been investigated in a diurnal context in wheat stems as compared to the dynamics in flag leaves during the terminal phases of grain filling. Here, we filled this research gap and tested the hypothesis that WSC dynamics interlink with gene expression of TaSUT1. The main stems and flag leaves of two genotypes, Westonia and Kauz, were sampled at four hourly intervals over a 24 h period at six developmental stages from heading to 28 DAA (days after anthesis). The total levels of WSC and WSC components were measured, and TaSUT1 gene expression was quantified at 21 DAA. On average, the total WSC and fructan levels in the stems were double those in the flag leaves. In both cultivars, diurnal patterns in the total WSC and sucrose were detected in leaves across all developmental stages, but not for the fructans 6-kestose and bifurcose. However, in stems, diurnal patterns of the total WSC and fructan were only found at anthesis in Kauz. The different levels of WSC and WSC components between Westonia and Kauz are likely associated with leaf chlorophyll levels and fructan degradation, especially 6-kestose degradation. High correlation between levels of TaSUT1 expression and sucrose in leaves indicated that TaSUT1 expression is likely to be influenced by the level of sucrose in leaves, and the combination of high levels of TaSUT1 expression and sucrose in Kauz may contribute to its high grain yield under well-watered conditions.

Published
2020
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