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- Title
Molybdate transport through the plant sulfate transporter SHST1
- Authors
Fitzpatrick, Kate L.; Tyerman, Stephen D.; Kaiser, Brent N.
- Abstract
Abstract: Molybdenum is an essential micronutrient required by plants. The mechanism of molybdenum uptake in plants is poorly understood, however, evidence has suggested that sulfate transporters may be involved. The sulfate transporter from Stylosanthes hamata, SHST1, restored growth of the sulfate transport yeast mutant, YSD1, on media containing low amounts of molybdate. Kinetic analysis using demonstrated that SHST1 enhanced the uptake of molybdate into yeast cells at nM concentrations. Uptake was not inhibited by sulfate, but sulfate transport via SHST1 was reduced with molybdate. These results are the first measurement of molybdate transport by a characterised plant sulfate transport protein.
- Subjects
MOLYBDENUM; SULFATES; MOLYBDATES; CARRIER proteins
- Publication
FEBS Letters, 2008, Vol 582, Issue 10, p1508
- ISSN
0014-5793
- Publication type
Article
- DOI
10.1016/j.febslet.2008.03.045