St. Hil (yerba mate) is an important crop in the north of Argentina, mainly in Misiones province. The application of as a biocontroller and biofertilizer can replace or reduce the use of agrochemicals, decreasing the negative ecological impact. In this research, we evaluated and antagonistic and plant growth promoting (PGP) properties of species isolated from different regions of Misiones province. Dual culture assays of against phytopathogenic fungi associated with yerba mate showed that LBM 120 was the most effective antagonist, inhibiting in more than 75% all phytopathogen growth. LBM 112 and LBM 120 were positive on endoglucanase, protease, chitinase, siderophore production, and phosphate solubilisation showed the best biological control agents and PGP properties. The PGP properties of spp. evaluated on yerba mate seedlings showed that LBM 112, LBM 120, and LBM 219 enhanced plant dry weight over 47% in total and 24% in the aerial part. Moreover, LBM 219 increased root dry weight 25% in contrast with controls. In conclusion, native strains could be a sustainable solution to improve yerba mate yield.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6781461 | PMC |
| http://dx.doi.org/10.1080/21501203.2019.1606860 | DOI Listing |
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