<Tr> <Td> Family: </Td> <Td> Rhizobiaceae </Td> </Tr> <Tr> <Td> Genus: </Td> <Td> Agrobacterium </Td> </Tr> <Tr> <Td> Species: </Td> <Td> A. tumefaciens </Td> </Tr> <Tr> <Th_colspan="2"> Binomial name </Th> </Tr>

The principle component of agrobacterium tumefaciens used in plant transformation is