Title : A loss-of-function mutation in AtYSL1 reveals its role in iron and nicotianamine seed loading.

Pub. Date : 2005 Dec

PMID : 16297069






6 Functional Relationships(s)
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1 A loss-of-function mutation in AtYSL1 reveals its role in iron and nicotianamine seed loading. Iron YELLOW STRIPE like 1 Arabidopsis thaliana
2 More importantly, seeds of both ysl1 knockouts contained less iron and nicotianamine than wild-type seeds, even when produced by plants grown in the presence of an excess of iron. Iron YELLOW STRIPE like 1 Arabidopsis thaliana
3 More importantly, seeds of both ysl1 knockouts contained less iron and nicotianamine than wild-type seeds, even when produced by plants grown in the presence of an excess of iron. Iron YELLOW STRIPE like 1 Arabidopsis thaliana
4 ysl1 seeds germinated slowly, but this defect was rescued by an iron supply. Iron YELLOW STRIPE like 1 Arabidopsis thaliana
5 AtYSL1 was expressed in the xylem parenchyma of leaves, where it was upregulated in response to iron excess, as well as in pollen and in young silique parts. Iron YELLOW STRIPE like 1 Arabidopsis thaliana
6 Taken together, our work provides strong physiological evidence that iron and nicotianamine levels in seeds rely in part on AtYSL1 function. Iron YELLOW STRIPE like 1 Arabidopsis thaliana