Guard cells control hypocotyl elongation through HXK1, HY5, and PIF4

Autor: Gilor Kelly, Danja Brandsma, Aiman Egbaria, Ofer Stein, Adi Doron-Faigenboim, Nitsan Lugassi, Eduard Belausov, Hanita Zemach, Felix Shaya, Nir Carmi, Nir Sade, David Granot
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Communications Biology, Vol 4, Iss 1, Pp 1-14 (2021)
Druh dokumentu: article
ISSN: 2399-3642
DOI: 10.1038/s42003-021-02283-y
Popis: Kelly et al. show that Arabidopsis hexokinase1 (HXK1) expressed in guard-cells is sufficient to drive hypocotyl elongation through increasing the activity of PIF4 and auxin level, and competing with the effects of HY5. This study provides insights into how light and sucrose antagonistically coordinate the effort to achieve the height necessary for efficient photosynthetic, autotrophic sugar production.
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