ABSTRACT
The uptake and distribution of sulfate in BRASSICA OLERACEA, a species characterised by its high sulfate content in root and shoot, are coordinated and adjusted to the sulfur requirement for growth, even at external sulfate concentrations close to the K (m) value of the high-affinity sulfate transporters. Plants were able to grow normally and maintain a high sulfur content when grown at 5 or 10 microM sulfate in the root environment. Abundance of mRNAs for the high affinity sulfate transporters, BolSultr1;1 and BolSultr1;2, were enhanced at Subject(s)
Anion Transport Proteins/metabolism
, Brassica/metabolism
, Plant Proteins/metabolism
, Sulfates/metabolism
, Anion Transport Proteins/genetics
, Biomass
, Brassica/genetics
, Brassica/growth & development
, Gene Expression Regulation, Plant/drug effects
, Kinetics
, Plant Proteins/genetics
, Plant Roots/drug effects
, Plant Roots/metabolism
, Plant Shoots/drug effects
, Plant Shoots/metabolism
, Sulfates/pharmacology
, Xylem/drug effects
, Xylem/metabolism