References:

• Agrobacterium tumefaciens increases cytokinin production in plastids by modifying the biosynthetic pathway in the host plant.

  Sakakibara H, Kasahara H, Ueda N, Kojima M, Takei K, Hishiyama S, Asami T, Okada K, Kamiya Y, Yamaya T, Yamaguchi S.
  Proc. Natl. Acad. Sci. U S A. 2005 Jul 12;102(28):9972-7.

• Unwounded plants elicit Agrobacterium vir gene induction and T-DNA transfer: transformed plant cells produce opines yet are tumour free.

  Brencic A, Angert ER, Winans SC.
  Mol. Microbiol. 2005 Sep;57(6):1522-31.

• Biogenesis, architecture, and function of bacterial type iv secretion systems.

  Christie PJ, Atmakuri K, Krishnamoorthy V, Jakubowski S, Cascales E.
  Annu. Rev. Microbiol. 2005;59:451-85.

• Resistance of transgenic tobacco seedlings expressing the Agrobacterium tumefaciens C58-6b gene, to growth-inhibitory levels of cytokinin is associated with elevated IAA levels and activation of phenylpropanoid metabolism.

  Galis I, Simek P, Van Onckelen HA, Kakiuchi Y, Wabiko H.
  Plant. Cell Physiol. 2002 Aug;43(8):939-50.