Publications by authors named "Simone Casani"
Article Synopsis
- The study examines the role of proteolytic enzymes in the megagametophyte of Araucaria bidwillii during seed germination, noting it as the primary storage tissue for the embryo.
- Early germination stages showed specific protease activities, including aminopeptidases and various proteinases, while late stages highlighted an increase in carboxypeptidases and serine proteinases.
- The findings suggest that different proteases are crucial for storage protein mobilization and cell death in the megagametophyte during the germination process.
The megagametophyte of the Araucaria bidwillii seed is a storage tissue that surrounds and feeds the embryo. When all its reserves are mobilized, the megagametophyte degenerates as a no longer needed tissue. In this work we present a biochemical and a cytological characterization of the megagametophyte cell death.
View Article and Find Full Text PDFThe nucellus is a maternal tissue that embeds and feeds the developing embryo and secondary endosperm. During seed development, the cells of the nucellus suffer a degenerative process soon after fertilization as the cellular endosperm expands and accumulates reserves. Nucellar cell degeneration has been considered to be a form of developmentally programmed cell death (PCD).
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