TY - JOUR AU - Pereira, Guillermo AU - Roa, Nicole AU - Castillo-Novales, Diyanira AU - Arriagada, César AU - Herrera, Héctor AU - Molina-Montenegro, Marco AU - Atala, Cristian PY - 2021/12/31 Y2 - 2024/03/28 TI - Mycorrhizal fungi isolated from Chilean orchids as biocontrollers of the pathogen Rhizoctonia solani JF - Gayana Botanica JA - Gayana Bot. VL - 78 IS - 2 SE - ORIGINAL ARTICLES DO - UR - https://gayanabotanica.cl/index.php/gb/article/view/399 SP - 113-120 AB - <p>Phytopatogenic fungi cause severe economic losses worldwide. <em>Rhizoctonia solani </em>Kühn is a pathogenic fungi affecting several crops, controlled mainly by agrochemicals. Biological control has arisen as another option for managing this pathogen. In this study, we evaluated the biocontroller potential of five orchid mycorrhizal fungi (OMF) isolated from terrestrial Chilean orchids on <em>R. solani</em>. We compared the biocontroller effect of these OMFs with that of <em>Trichoderma harzianum </em>Rifai in an <em>in vitro </em>dual culture experiment. We found that <em>R. solani </em>can be controlled <em>in vitro </em>by OMF isolated from native orchids. The OMF isolated from <em>Chloraea virescens </em>and <em>C. lamellata </em>showed the best biocontroller results, which were similar, or even higher, than with <em>T. harzianum</em>. Thus, OMFs could become a relevant alternative for the integral control of <em>R. solani, </em>contributing to the reduction in the use of agrochemicals in crops.</p> ER -