Abstract

Oregano from Socoroma (Atacama Desert) is characterized by its unique organolepticproperties and distinctive flavor and it is produced using ancestral pesticide-free agricultural practicesperformed by the Aymara communities. The cultivation in this zone is carried out under extremeconditions where the standard production of different crops is limited by several environmentalfactors, including aridity, high concentration of salts, and boron among others. However, oreganoplants are associated with microorganisms that mitigate biotic and abiotic stresses present in this site.In this work, the S57 strain (member of the Pseudomonas genus that is closely related to Pseudomonaslini) was isolated from roots of oregano plants, which are grown in soils with high content of non-sodium salts and aluminum. This bacterium stimulates the growth of Micro-Tom tomato plantsirrigated with saline-boric water. Moreover, it controls the growth of phytopathogenic fungi Fusariumoxysporum and Botrytis cinerea and the nematode Meloidogyne incognita under saline-boric conditions.Together with the high levels of bacterial biomass (~47 g/L), these results allow the establishmentof the bases for developing a potential new agricultural bioproduct useful for arid and semiaridenvironments where commercial biological products show erratic behavior. (4) (PDF) The Endophytic Pseudomonas sp. S57 for Plant-Growth Promotion and the Biocontrol of Phytopathogenic Fungi and Nematodes. Available from: https://www.researchgate.net/publication/354203142_The_Endophytic_Pseudomonas_sp_S57_for_Plant-Growth_Promotion_and_the_Biocontrol_of_Phytopathogenic_Fungi_and_Nematodes [accessed Jun 21 2022].