Proteomics of seed development, desiccation tolerance, germination and vigor

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  • Wei-Qing Wang, Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, China
  • Shu-Jun Liu, Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, China
  • Song-Quan Song, Key Laboratory of Plant Resources, Institute of Botany, The Chinese Academy of Sciences, China
  • Ian Max Møller

Proteomics, the large-scale study of the total complement of proteins in a given sample, has been applied to all aspects of seed biology mainly using model species such as Arabidopsis or important agricultural crops such as corn and rice. Proteins extracted from the sample have typically been separated and quantified by 2-dimensional polyacrylamide gel electrophoresis followed by liquid chromatography and mass spectrometry to identify the proteins in the gel spots. In this way, qualitative and quantitative changes in the proteome during seed development, desiccation tolerance, germination, dormancy release, vigor alteration and responses to environmental factors have all been studied. Many proteins or biological processes potentially important for each seed process have been highlighted by these studies, which greatly expands our knowledge of seed biology. Proteins that have been identified to be particularly important for at least two of the seed processes are involved in detoxification of reactive oxygen species, the cytoskeleton, glycolysis, protein biosynthesis, post-translational modifications, methionine metabolism, and late embryogenesis-abundant (LEA) proteins. It will be useful for molecular biologists and molecular plant breeders to identify and study genes encoding particularly interesting target proteins with the aim to improve the yield, stress tolerance or other critical properties of our crop species.

Original languageEnglish
JournalPlant Physiology and Biochemistry
Volume86
Pages (from-to)1-15
Number of pages15
ISSN0981-9428
DOIs
Publication statusPublished - Jan 2015

    Research areas

  • Seed development, Desiccation tolerance, Seed germination, Seed vigor

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