Article
An ancient mechanism controls the development of cells with a rooting function in land plants.
Science (New York, N.Y.) - 8 Jun 2007
Menand Benoît, Yi Keke, Jouannic Stefan, Hoffmann Laurent, Ryan Eoin, Linstead Paul, Schaefer Didier G, Dolan Liam
Abstract excerpt
Root hairs and rhizoids are cells with rooting functions in land plants. We describe two basic helix-loop-helix transcription factors that control root hair development in the sporophyte (2n) of the angiosperm Arabidopsis thaliana and rhizoid development in the gametophytes (n) of the bryophyte Physcomitrella patens. The phylogeny of land plants supports the hypothesis that early land plants were bryophyte-like...
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