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<p>Entomopathogenic fungi produce chemical compounds that may provide different biological activities, and biotic and abiotic factors influence their production. This work aimed to determine the production of chemical compounds during the growth of the <i>Beauveria bassiana</i> GHA strain in nine different culture media. The media used were malt extract agar (MEA), potato dextrose agar (PDA), Spezieller Nahrstoffarmer agar (SNA), Sabouraud dextrose agar (SDA) enriched with yeast extract; yeast extract casein peptone dextrose agar (YEPDA), and potato dextrose-fungus (<i>Agaricus bisporus</i>) (PDF) as well as oats based medium (OBM), rice based medium (RBM), and CHEERIOS<sup>®</sup> (Whole oats, Nestlé<sup>®</sup>) based medium (CHBM). The GHA strain was incubated in each medium at 28&#xa0;°C for 21 days. The fungal growth was measured by biomass production, and the production of chemical compounds was evaluated through a GC-MS analysis. Results indicated significant differences in biomass production among the different culture media. The highest biomass production was observed in the SDA and OBM, while no growth was observed in the PDA, MEA, and SNA media. The GC-MS analysis detected 156 compounds, including 54 extracted with methanol, 65 with ethyl acetate, and 37 with hexane. The number of compounds varied according to the media used. These chemical compounds correspond to amines, alcohols, fatty acids, and amino acids, among many others. The nutrients available in the growth media have an essential influence on the chemical compound production by <i>B. bassiana</i> GHA strain.</p>

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Beauveria bassiana GHA strain produces a plethora of chemical compounds under different culture conditions

  • 期刊论文

  • 发表日期：

    2026年2月10日

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  • Yvonne Ramírez-Cáceres,
  • Cipriano García-Gutiérrez,
  • Rubén Santiago-Adame,
  • Jesús M. Villegas-Mendoza,
  • Jorge A. Torres-Ortega,
  • Ninfa M. Rosas-García

摘要

Entomopathogenic fungi produce chemical compounds that may provide different biological activities, and biotic and abiotic factors influence their production. This work aimed to determine the production of chemical compounds during the growth of the Beauveria bassiana GHA strain in nine different culture media. The media used were malt extract agar (MEA), potato dextrose agar (PDA), Spezieller Nahrstoffarmer agar (SNA), Sabouraud dextrose agar (SDA) enriched with yeast extract; yeast extract casein peptone dextrose agar (YEPDA), and potato dextrose-fungus (Agaricus bisporus) (PDF) as well as oats based medium (OBM), rice based medium (RBM), and CHEERIOS® (Whole oats, Nestlé®) based medium (CHBM). The GHA strain was incubated in each medium at 28 °C for 21 days. The fungal growth was measured by biomass production, and the production of chemical compounds was evaluated through a GC-MS analysis. Results indicated significant differences in biomass production among the different culture media. The highest biomass production was observed in the SDA and OBM, while no growth was observed in the PDA, MEA, and SNA media. The GC-MS analysis detected 156 compounds, including 54 extracted with methanol, 65 with ethyl acetate, and 37 with hexane. The number of compounds varied according to the media used. These chemical compounds correspond to amines, alcohols, fatty acids, and amino acids, among many others. The nutrients available in the growth media have an essential influence on the chemical compound production by B. bassiana GHA strain.