Transcriptomics

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Investigating the role of OsPDCD5 in rice programmed cell death by inducible expression


ABSTRACT: Overexpression of programmed cell death 5 gene (PDCD5) in tumor cells enhances apoptosis triggered by growth factor or serum deprivation, and overexpression of its homolog, OsPDCD5, induces the early death of transgenic plants. In this work, a system of inducible OsPDCD5 expression using a heat shock promoter was developed to study PCD in rice at different developmental stages.The results showed that in three-leaf aged and older seedlings, OsPDCD5 could independently induce PCD. In altered plants, OsPDCD5 expression caused lesion mimic phenotype, abnormal leaf morphology, nuclear condensation, DNA fragmentation, and H2O2 production. But two-leaf aged and younger seedlings seedlings showed no visibly morphological phenotype after OsPDCD5 expression, suggested that young seedlings possessed some mechanism inhibiting OsPDCD5 induced PCD.

ORGANISM(S): Oryza sativa

PROVIDER: GSE18900 | GEO | 2011/06/30

SECONDARY ACCESSION(S): PRJNA121307

REPOSITORIES: GEO

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