Characteristics of Organic Acid Secretion Associated with the Interaction between WS-FJ9 and Poplar Root System.

The objective of this study was to investigate whether plant-bacteria interaction affects the secretion of organic acids by both organisms and to assess whether the production of IAA by the bacterium increases the secretion of organic acids by root exudates, and if the stress produced by low available phosphorus (P) affects the production of organic acids by bacteria, by roots, or by root exudates in presence of bacterial cultures. With this purpose, we used as a biological model poplar plants and one strain of able to solubilize P. High performance liquid chromatography was utilized to measure organic acids.

Biosafety and colonization of Burkholderia multivorans WS-FJ9 and its growth-promoting effects on poplars.

Burkholderia cepacia complex (Bcc) is a group of bacteria with conflicting biological characteristics, which make them simultaneously beneficial and harmful to humans. They have been exploited for biocontrol, bioremediation, and plant growth promotion. However, their capacity as opportunistic bacteria that infect humans restricts their biotechnological applications.