Isolation of Plant Growth Promoting Rhizobacteria from Spartina densiflora and Sarcocornia perennis in San Antonio polluted salt marsh, Patagonian Argentina

With the purpose of Plant Growth Promoting Rhizobacteria (PGPR) isolation, several authors have sampled different wetlands in northern half Argentina. However, to date, we do not know existence microbiological studies conducted Patagonian salt marshes, and concretely, concerning isolation PGPR. The present work was heavy metal polluted San Antonio marsh, two areas with grade pollution. In those areas, isolated cultivable bacteria from rhizosphere halophytes Spartina densiflora Sarcocornia perennis, look for plant growth promoting (PGP) properties among them. total, 60 were isolated. 50% rhizobacterial strains demonstrated at least one PGP assayed, 25% them produced siderophores, 16% able solubilize phosphate, 11% produce auxins 7% chitinase. We could observe that more abundant growing soils. Also, inhabiting S. showed related phytostabilization mechanisms, line phytoremediation strategy this halophyte. Overall, these findings support idea coastal hazardous scenarios may be a good opportunity seek Indeed, some presented than property, so they selected further formulation inoculants applications. For research, it would interesting analyse other strains, as well isolate rhizobacteria diverse marshes.