We　propose　a　one-step　scheme　for　implementing　entanglement　generation　and　the　quantum　state　transfer　between　two　atomic　qubits　trapped　in　two　different　cavities　that　are　not　directly　coupled　to　each　other.　The　process　is　realized　through　engineering　an　effective　asymmetric　X-Y　interaction　for　the　two　atoms　involved　in　the　gate　operation　and　an　auxiliary　atom　trapped　in　an　intermediate　cavity,　induced　by　virtually　manipulating　the　atomic　excited　states　and　photons.　We　study　the　validity　of　the　scheme　as　well　as　the　influences　of　the　dissipation　by　numerical　simulation　and　demonstrate　that　it　is　robust　against　decoherence.