| Categories genes  | Tags endosperm  transporter  plasma membrane  iron  grain-filling 
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  • Key message
    • Rice OsYSL9 is a novel transporter for Fe(II)-nicotianamine and Fe(III)-deoxymugineic acid that is responsible for internal iron transport, especially from endosperm to embryo in developing seeds
    • At the grain-filling stage, OsYSL9 expression was strongly and transiently induced in the scutellum of the embryo and in endosperm cells surrounding the embryo
    • These results suggested that OsYSL9 is involved in iron translocation within plant parts and particularly iron translocation from endosperm to embryo in developing seeds
    • The iron-chelate transporter OsYSL9 plays a role in iron distribution in developing rice grains.
    • In the present report, we showed that OsYSL9 localizes mainly to the plasma membrane and transports both iron(II)-nicotianamine and iron(III)-deoxymugineic acid into the cell
    • Expression of OsYSL9 was induced in the roots but repressed in the nonjuvenile leaves in response to iron deficiency
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