The current work focuses on the protocol design of control and state estimation performance enhancement in space for a linear diffusion-advection-reaction equation based on actuators in collaboration with sensors. Here sensors are assumed to be capable of sharing measurement information. A static output feedback feedback control law combined with distributed consensus protocol and a Luenberger-type PDE centralized observer are respectively proposed under a directed communication topology for control and state estimation performance enhancement in space. By resorting to multi-agent consensus theory and Lyapunov technique with variants of Poincaré–Wirtinger's inequality, sufficient conditions for the existence of the proposed cooperative control and centralized observer protocols are derived, and presented in the form of standard linear matrix inequalities. Finally, extensive simulation results for a numerical example are presented to support the main results of this paper.