Common and distinct mechanisms underlying the establishment of adaxial and abaxial polarity in stamen and leaf development

Taiyo Toriba, Yoshihiro Ohmori, Hiro Yuki Hirano

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    Establishment of adaxial-abaxial polarity is essential for lateral organ development. A stamen consists of a bilaterally symmetrical anther and a radial filament. Using a rice mutant, rod-like lemma, in which establishment of adaxial-abaxial polarity is compromised, we found that stamen patterning is likely to be achieved by a unique regulatory mechanism: rearrangement of adaxial-abaxial polarity in the anther, and abaxialization in the flament. These regulations are not found in leaf development. Here, we discuss similarities and differences between the stamen and the leaf in the mechanisms underlying the establishment of adaxial-abaxial polarity. In addition, we propose the idea that the process of establishing adaxial-abaxial polarity in lateral organs is likely to be divided into two phases: a meristem-dependent, followed by a meristem-independent phase. In stamen development, the transition between these two phases is clearly observed as the rearrangement of expression patterns of the adaxial and abaxial marker genes.

    Original languageEnglish
    Pages (from-to)430-433
    Number of pages4
    JournalPlant Signaling and Behavior
    Volume6
    Issue number3
    DOIs
    Publication statusPublished - 2011 Mar

    Keywords

    • Adaxial and abaxial polarity
    • Anther
    • ETTIN
    • Filament
    • HD-ZIPIII
    • Leaf
    • Meristem
    • Rice (Oryza sativa)
    • Stamen
    • Ta-sirna

    ASJC Scopus subject areas

    • Plant Science

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