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Proteomic analysis of peripheral layers during wheat (Triticum aestivum L.) grain development by Ayesha Tasleem-Tahir; Isabelle Nadaud; Christine Girousse; Pierre Martre; Didier Marion; Gérard Branlard is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Abstract Grains of hexaploid wheat, __Triticum aestivum__ (cv. Récital), were collected at 15 stages of development, from anthesis to physiological maturity, 0–700°C days (degree days after anthesis). Two hundred and seven proteins of grain peripheral layers (inner pericarp, hyaline, testa and aleurone layer) were identified by 2‐DE, MALDI‐TOF MS and data mining, then were classified in 16 different functional categories. Study of the protein expression over time allowed identification of five main profiles and four distinct phases of development. Composite expression curves indicated that there was a shift from metabolic processes, translation, transcription and ATP interconversion towards storage and defence processes. Protein synthesis, protein turnover, signal transduction, membrane transport and biosynthesis of secondary metabolites were the mediating functions of this shift. A picture of the dynamic processes taking place in peripheral layers during grain development was obtained in this study. It should further help in the construction of proteome reference maps for the developing peripheral layers.

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Author

Ayesha Tasleem-Tahir; Isabelle Nadaud; Christine Girousse; Pierre Martre; Didier Marion; Gérard Branlard

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley; Research Square (ISSN 1615-9853)

Published

2011

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)