Growth-promoting thermophilic microorganisms in self-heating pasteurized substrate improve Agaricus bisporus mycelial growth

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DOI:

https://doi.org/10.33885/sf.2019.49.1261

Resumo

Background: Certain microorganisms during the preparation of substrate for growing Agaricus bisporus are of great interest for the conversion of organic material and for the excretion of a wide range of metabolites with growth regulation activities that may affect the mycelial growth processes and mushroom yield. Adding beneficial microorganisms in the substrate may be a biotechnological alternative to optimize A. bisporus cultivation.

Objective: Isolate and evaluate thermophilic microorganisms from self-heating pasteurized substrate with growth-promoting effects on A. bisporus cultivation.

Methods: Different microorganisms were isolated and selected at 45 and 55 °C. They were tested for siderophore production, 1-octen-3-ol consumption, and phosphate solubilization in coculture with A. bisporus to determine their growth effects on potato dextrose agar (PDA) and on sterile pangola grass (Digitaria eriantha).

Results: Of the 106 microorganisms isolated, 88 % were able to grow in the presence of 1-octen-3-ol, while 1 % had the capacity to produce siderophores, and 55 % had the ability to solubilize phosphate. The strains Bacillus hisashii ECS-B-65, B. licheniformis ECS-B-78, Rhizomucor pusillus ECS-710 and ECS-712, Aspergillus fumigatus ECS-709, and Thermomyces sp. ECS-711 were found to have a positive effect on A. bisporus mycelial growth.

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Biografia do Autor

Yazmín C. Díaz-Martínez, Instituto de BiocienciasUniversidad Autónoma de Chiapas

Posición actual:

Asistente de investigación

Grupo Académico de biotecnología Ambiental

El Colegio de la Frontera Sur

Griselda K. Guillén, El Colegio de la Frontera Sur

Departamento Ciencias de la Sustentabilidad
Ecosur

José E. Sánchez, El Colegio de la Frontera Sur

Grupo Académico de biotecnología Ambiental

Departamento Ciencias de la Sustentabilidad

Ecosur

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Publicado

2019-12-31

Como Citar

Díaz-Martínez, Y. C., Guillén, G. K., & Sánchez, J. E. (2019). Growth-promoting thermophilic microorganisms in self-heating pasteurized substrate improve Agaricus bisporus mycelial growth. Scientia Fungorum, 49, e1261. https://doi.org/10.33885/sf.2019.49.1261

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