Gene Information
NCBI Gene ID 829301
Symbol GDU1
LocusTag AT4G31730
Synonyms ARABIDOPSIS THALIANA GLUTAMINE DUMPER 1|ATGDU1|F28M20.80|F28M20_80|GLUTAMINE DUMPER 1
Description GDU1 (GLUTAMINE DUMPER 1)
Gene Type protein-coding
Pattern GDU1|AT4G31730|ARABIDOPSIS THALIANA GLUTAMINE DUMPER 1|ATGDU1|F28M20.80|F28M20_80|GLUTAMINE DUMPER 1|GDU1 (GLUTAMINE DUMPER 1)
Corresponding sequence in Trichome EST library TCHL59300 

Reference

Overexpression of GLUTAMINE DUMPER1 leads to hypersecretion of glutamine from Hydathodes of Arabidopsis leaves.
Pilot G, Stransky H, Bushey DF, Pratelli R, Ludewig U, Wingate VP, Frommer WB. Plant Cell. 2004 Jul;16(7):1827-40.

...... organs, such as nectaries, hydathodes, and trichomes, use a combination of secretory and retrieval mechanisms, which are poorly understood at present. To study the mechanisms involved, an Arabidopsis thaliana activation tagged mutant, glutamine dumper1 (gdu1), was identified that accumulates salt crystals at the hydathodes. Chemical analysis demonstrated that, in contrast with the amino acid mixture normally present in guttation droplets, the crystals mainly contain Gln. GDU1 was cloned ......