FIG 6.

Predicted contributions of “Candidatus Portiera aleyrodidarum” and “Candidatus Hamiltonella defensa” to the supply of lysine and threonine to the host. The reaction rates (solid arrows) and transport rates (dashed arrows) in the three-compartment model (millimoles gram DW⁻¹ hour⁻¹) are shown. (a) “Candidatus Portiera aleyrodidarum”-mediated production of threonine and the lysine precursor l,l-2,6-diaminoheptanedioate from host aspartate (“Candidatus Portiera aleyrodidarum” lacks the genetic capacity to synthesize aspartate). (b) “Candidatus Hamiltonella defensa”-mediated production of threonine and lysine synthesis from endogenously generated aspartate (left) and host aspartate (right).