A tree is never a single individual ... More information: Christin Walther et al, A Fungal Endophyte Alters Poplar Leaf Chemistry, Deters Insect Feeding and Shapes Insect Community Assembly ...

We even found this substance in the leaves of old trees in the field," says study ... question is whether the relationship between black poplar and Cladosporium is symbiotic, and whether the ...