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Gene August 5, 2022; 834 146645.
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Proteomic analysis of Euryale ferox Salisb seeds at different developmental stages.

Wu P , Liu A , Zhu Y , Li X , Wang Y , Li L .

The development of plant seeds is accompanied by changes in their internal substances. The edible part of E. ferox is the seed, and starch and flavonoids are the storage substances and functional substances in E. ferox seeds respectively. Herein, four time points of seed development, including after flowering T10 (10 days), T20 (20 days), T30 (30 days) and T40 (40 days), were investigated by using iTRAQ technology. A total of 2809 differential proteins were identified. The enrichment analysis of differential proteins found that they were mainly enriched in starch synthesis pathways and flavonoid biosynthesis pathways. The key candidate enzymes for starch synthesis, APS (c54069), APL (c55730), SBE (c56416), SSS (c54912) and GBSS (c53181), were identified. At the same time,PAL (c50934), CHS (c49212), F3H (c35949) and ANS (c54610) may be key enzymes in flavonoid biosynthesis. In addition, the ABA signal transduction pathway was analyzed and it was identified that PYL3 (c54854) and ABI5 (c56122) are up-regulated from T10 to T40, and it is speculated that they play an important regulatory role in the development of E. ferox seeds. Together, these results reveals the dynamic changes during the development of E. ferox seeds, which will provide guidance for the study of the molecular mechanism of starch and flavonoids.

PubMed ID: 35680017
Article link: Gene