Bacterial dynamic profile in rhizosphere of Acacia mearnsii during early time transplantation

Land degradation is one of the major environmental problems in the agricultural sector. On the other hand, the increasing human population needs more and more agricultural products. For that reason, land reclamation using a plant-based approach showing fast-growing capability should be considered as one of the strategies for solving that problematic issue. Acacia mearnsii is one of the fast-growing plants and has high adaptability to some environmental stresses such as drought and fire. Furthermore, the species has shown its ability to increase soil nutrition indicated by its symbiotic capability with some nitrogen-fixing bacteria. In order to exploit and maximize such character, understanding bacterial population dynamics in the rhizosphere zone should ease the use of the species for phytoremediation purposes. A bacterial dynamic profile in the rhizosphere area was identified using the amplicon metagenome sequencing platform. The sequencing result shows Acacia mearnsii has an impact on the dynamic profile of the bacterial population in the rhizosphere, especially nitrogen-fixing bacteria.