We examined the genetic diversity of root nodule bacteria associated with the Australian legume Acacia longifolia in two stages of invasion of a coastal sand dune system. All isolates belonged to the genus Bradyrhizobium. A higher diversity was found in the long-established trees. The results suggest the introduction of exotic ...

... 3000 Coimbra, Portugal. Corresponding author's hmarchante@mail.esac.pt Abstract The effect of mechanical clearing and ... ...

... Published Data Populus is a genus of trees which includes the cottonwoods ... in multiple adult hay fever patients skin tested with various tree pollen extracts. ...