Transformed root cultures of Tagetes filifolia were established by inf
ection with Agrobacterium rhizogenes LBA 9402. Several clones were obt
ained with different growth index, content of thiophenes and pattern.
The isolated clones showed considerable variations in total thiophene
content (27 to 11764 mu g/g fresh weight) but all had similar patterns
of the different thiophenes. Only one clone excreted thiophenes (abou
t 80% of total amount).