Individual glucosinolates in various organs of the Columbia ecotype of A. thaliana during development with special emphasis on changes occurring during seedling germination and leaf development. The leaves of the oldest plants also contained typical seed glucosinolates; such as 4-methylthiobutyl-; 4-hydroxybutyl- and 4-benzoyloxybutyl-glucosinolates. On the other hand; glucosinolates that predominate in the seed; including 3-hydroxypropyl-; 4-hydroxybutyl-; 3-benzoyloxypropyl-; 4-benzoyloxybutyl-; 4-methylthiobutyl-; 7-methylthioheptyl-; 8-methylsulfinyoctyl-; 8-methylthiooctyl-; and 4-hydroxyindol-3-ylmethyl- glucosinolate remained constant or showed a decrease upon seedling germination (Brown et al. 2003)