Trees fight infections by trapping pathogens in one part of the tree. Hugh Morris and colleagues have been reviewing how trees use secondary metabolites in order to control the process.
Secondary Xylem Biology: Origins, Functions, and Applications. Edited by Yoon Soo Kim, Ryo Funada and Adya Singh. Academic Press, 2016. We don’t get that many books dealing specifically with secondary xylem [wood]...