<i>Trichoderma</i> spp. from Misiones, Argentina: effective fungi to promote plant growth of the regional crop <i>Ilex paraguariensis</i> St. Hil
<i>Ilex paraguariensis</i> St. Hil (yerba mate) is an important crop in the north of Argentina, mainly in Misiones province. The application of <i>Trichoderma</i> as a biocontroller and biofertilizer can replace or reduce the use of agrochemicals, decreasing the negative ecol...
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| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2019
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/107731 http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6781461&blobtype=pdf https://www.tandfonline.com/doi/full/10.1080/21501203.2019.1606860 |
| Aporte de: |
| Sumario: | <i>Ilex paraguariensis</i> St. Hil (yerba mate) is an important crop in the north of Argentina, mainly in Misiones province. The application of <i>Trichoderma</i> as a biocontroller and biofertilizer can replace or reduce the use of agrochemicals, decreasing the negative ecological impact. In this research, we evaluated <i>in vitro</i> and <i>in vivo</i> antagonistic and plant growth promoting (PGP) properties of <i>Trichoderma</i> species isolated from different regions of Misiones province. Dual culture assays of <i>Trichoderma</i> against phytopathogenic fungi associated with yerba mate showed that <i>T. stilbohypoxyli</i> LBM 120 was the most effective antagonist, inhibiting in more than 75% all phytopathogen growth. <i>Trichoderma atroviride</i> LBM 112 and <i>T. stilbohypoxyli</i> 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 <i>Trichoderma</i> spp. evaluated <i>in vivo</i> on yerba mate seedlings showed that <i>T. atroviride</i> LBM 112, <i>T. stilbohypoxyli</i> LBM 120, and <i>T. koningiopsis</i> LBM 219 enhanced plant dry weight over 47% in total and 24% in the aerial part. Moreover, <i>T. koningiopsis</i> LBM 219 increased root dry weight 25% in contrast with <i>in vitro</i> controls. In conclusion, native <i>Trichoderma</i> strains could be a sustainable solution to improve yerba mate yield. |
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