0000000000021370
AUTHOR
S. Chioccioli
Endophytes from Phragmites australis: their role in phytodepuration
Wastewater treatment is an alarming question and phytodepuration represents an efficient and cost-effective solution. Phragmites australis is generally used for phytodepuration and it excellently removes arsenic, iron and nickel from polluted water. The purification potential of its bacterial endophytic community has never been explored though. G.I.D.A. S.p.a uses P. australis for phytoremediation in a pilot plant, at Calice purifier, which treats the effluent from the Membrane Bioreactor plant. Endophytic bacterial strains were isolated from different P. australis compartments sampled before the activation of the Calice purifier and four additional times during a 18-months period, to analy…
Compartmentalization of biosynthetic enzymes in bacterial cells: the histidine metabolic pathway case
Introduction: It is known that the inner concentration of proteins within the cell cytoplasm is so high that limits the diffusion of enzymes and metabolic intermediates, leading to a loss of time and energy. Therefore, the organization of genes in operons would have enabled to have enzymes involved in the same metabolic pathway physically close to each other. A corollary to this hypothesis in the possibility of physical interactions between the enzymes of the same metabolic pathway, resulting in the formation of a supramolecular complex capable in channeling the intermediates from one enzyme to a physical adjacent one, with restricted diffusion in the surrounding milieu. Objectives: The aim…