Informace o publikaci

The importance of localized auxin production for morphogenesis of reproductive organs and embryos in Arabidopsis

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ROBERT BOISIVON Hélene CRHÁK KHAITOVÁ Lucie MROUE Souad FRIMLOVÁ Eva

Rok publikování 2015
Druh Článek v odborném periodiku
Časopis / Zdroj Journal of Experimental Botany
Fakulta / Pracoviště MU

Středoevropský technologický institut

Citace
www http://jxb.oxfordjournals.org/content/early/2015/05/26/jxb.erv256.full?keytype=ref&ijkey=Az25BGlm4weIPvt
Doi http://dx.doi.org/10.1093/jxb/erv256
Obor Genetika a molekulární biologie
Klíčová slova Arabidopsis; auxin; reproductive organs; seed ;embryo
Popis Plant sexual reproduction involves highly structured and specialized organs: stamens (male) and gynoecia (female, containing ovules). These organs synchronously develop within protective flower buds, until anthesis, via tightly coordinated mechanisms that are essential for effective fertilization and production of viable seeds. The phytohormone auxin is one of the key endogenous signalling molecules controlling initiation and development of these, and other, plant organs. In particular, its uneven distribution, resulting from tightly controlled production, metabolism and directional transport, is an important morphogenic factor. In this review we discuss how developmentally controlled and localized auxin biosynthesis and transport contribute to the coordinated development of plants’ reproductive organs, and their fertilized derivatives (embryos) via the regulation of auxin levels and distribution within and around them. Current understanding of the links between de novo local auxin biosynthesis, auxin transport and/or signalling is presented to highlight the importance of the non-cell autonomous action of auxin production on development and morphogenesis of reproductive organs and embryos. An overview of transcription factor families, which spatiotemporally define local auxin production by controlling key auxin biosynthetic enzymes, is also presented.
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