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Gene networks in the synthesis and deposition of protein polymers during grain development of wheat

She, M., Ye, X., Yan, Y., Howit, C., Bellgard, M. and Ma, W.ORCID: 0000-0002-1264-866X (2011) Gene networks in the synthesis and deposition of protein polymers during grain development of wheat. Functional & Integrative Genomics, 11 (1). pp. 23-35.

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As the amino acid storing organelle, the protein bodies provide nutrients for embryo development, seed germination and early seedling growth through storage proteolysis in cereal plants, such as wheat and rice. In protein bodies, the monomeric and polymeric prolamins, i.e. gliadins and glutenins, form gluten and play a key role in determining dough functionality and end-product quality of wheat. The formation of intra- and intermolecular bonds, including disulphide and tyrosine bonds, in and between prolamins confers cohesivity, viscosity, elasticity and extensibility to wheat dough during mixing and processing. In this review, we summarize recent progress in wheat gluten research with a focus on the fundamental molecular biological aspects, including transcriptional regulation on genes coding for prolamin components, biosynthesis, deposition and secretion of protein polymers, formation of protein bodies, genetic control of seed storage proteins, the transportation of the protein bodies and key enzymes for determining the formation of disulphide bonds of prolamin polymers.

Item Type: Journal Article
Murdoch Affiliation(s): Centre for Comparative Genomics
Publisher: Springer Verlag
Copyright: © 2010 Springer-Verlag
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