Unknown,Transcriptomics,Genomics,Proteomics

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Expression data from Arabidopsis roots and shoots grown with or without iron


ABSTRACT: Iron-deficiency repsonses in Arabidopsis are controlled by several bHLH transcription factors. FIT, for example has been shown to direct iron-uptake responses. However, the role of shoot and root expressed genes bHLH100 and bHLH101 has not be clarified. We used microarray to study what genes might be miss-regulated in the double mutant bhlh100/bhlh101 background 10-day-old Arabidopsis plants were divided into root and shoot tissues and harvested for RNA extraction.

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Alicia Sivitz 

PROVIDER: E-GEOD-40076 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Arabidopsis bHLH100 and bHLH101 control iron homeostasis via a FIT-independent pathway.

Sivitz Alicia B AB   Hermand Victor V   Curie Catherine C   Vert Grégory G  

PloS one 20120911 9


Iron deficiency induces a complex set of responses in plants, including developmental and physiological changes, to increase iron uptake from soil. In Arabidopsis, many transporters involved in the absorption and distribution of iron have been identified over the past decade. However, little is known about the signaling pathways and networks driving the various responses to low iron. Only the basic helix-loop-helix (bHLH) transcription factor FIT has been shown to control the expression of the r  ...[more]

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