E Dulekgurgen, N Artan… - Survival and Sustainability, 2011 - Springer ... Taking into account the morphological features of the tetrad/sarcina-like cells and their responses to poly-P and PHB stain- ing reactions, they were addressed as Tetra Forming Organisms (TFOs; after [25]), rather than GAOs. ... m o rphology of GA Os − N eisser(+ ) only o n ... Related articles