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The molecular circuitry of brassinosteroid signaling

Youssef Belkhadir - Nama Orang; Yvon Jaillais - Nama Orang;

Because they are tethered in space, plants have to make the most of their local growth
environment. In order to grow in an ever-changing environment, plants constantly remodel their
shapes. This adaptive attribute requires the orchestration of complex environmental signals at
the cellular and organismal levels. A battery of small molecules, classically known as
phytohormones, allows plants to change their body plan by using highly integrated signaling
networks and transcriptional cascades. Amongst these hormones, brassinosteroids (BRs), the
polyhydroxylated steroid of plants, influence plant responsiveness to the local environment and
exquisitely promote, or interfere with, many aspects of plant development. The molecular
circuits that wire steroid signals at the cell surface to the promoters of thousands of genes in the
nucleus have been defined in the past decade. This review recapitulates how the transduction of
BR signals impacts the temporally unfolding programs of plant growth. First, we summarize the
paradigmatic BR signaling pathway acting primarily in cellular expansion. Secondly, we describe
the current wiring diagram and the temporal dynamics of the BR signal transduction network.
And finally we provide an overview of how key players in BR signaling act as molecular gates to
transduce BR signals onto other signaling pathways.

Key words: brassinosteroid, crosstalk, growth-immunity tradeoff, light signaling, photomorphogenesis, phytohormone, plant growth and development, receptor kinase.

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Judul Seri: New Phytologist
No. Panggil: -
Penerbit: : New Phytologist Trust., 2015
Deskripsi Fisik: New Phytologist (2015) 206: 522–540
Bahasa: English
ISBN/ISSN: doi: 10.1111/nph.132
Klasifikasi: -
Tipe Isi: -
Tipe Media: -
Tipe Pembawa: -
Edisi: (2015) 206: 522–540
Subjek: ILMU PENYAKIT TUMBUHAN
Info Detail Spesifik: -
Pernyataan Tanggungjawab: agus

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The molecular circuitry of brassinosteroid signaling

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