Rosmarinic acid and related phenolics in transformed root cultures of Hyssopus officinalis

Abstract

Hyssopus officinalis transformed roots were induced by infection with Agrobacterium rhizogenes. The transformed roots grew well in hormone-free Woody Plant liquid medium producing high levels of phenolic compounds such as rosmarinic acid (maximum: 8.03% of dry weight) and lithospermic acid B (maximum: 3.89% of dry weight).