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<p>The biocontrol activity of <i>Meyerozyma guilliermondii</i> LMA-Cp01, pure and in combination with sodium propionate (SP), sodium bicarbonate (SBC), or sodium benzoate (SB) against <i>Colletotrichum gloeosporioides</i> on anthracnose spoilage of mango fruit was investigated. SP, SBC, and SB at 1, 0.5, and 0.25% concentrations did not affect the growth of <i>M. guilliermondii</i> in nutrient-yeast-dextrose broth (NYDB), respectively. Population growth of <i>M. guilliermondii</i> in mango fruit wounds was not affected by the addition of SP or SB. <i>M. guilliermondii</i>, as a stand-alone or in combination with GRAS treatments, significantly reduced the growth of <i>C. gloeosporioides</i> on PDA plates, and the disease incidence and lesion diameter of anthracnose on mango fruits. In vitro tests showed that 0.5 and 1% SP and 0.1% SB significantly enhanced the growth inhibition of <i>C. gloeosporioides</i>. SB at 0.1% increased the biocontrol efficacy of the yeast from 41% to 75% for the incidence and, from 64% to 91%, of lesion diameter in reducing anthracnose decay on mango fruit. The combination of <i>M. guilliermondii</i> and SB presented a synergistic effect against the pathogenic fungi. <i>M. guilliermondii</i>, combined with SP or SB, maintained the quality parameters equal to those of the control treatment. Integration of <i>M. guilliermondii</i> LMA-Cp01 and GRAS salts represents an efficient alternative to chemical fungicides to manage anthracnose in mango fruit.</p>

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Enhancement of biocontrol activity of Meyerozyma guilliermondii LMA-Cp01 with GRAS salts for the postharvest control of mango anthracnose caused by Colletotrichum gloeosporioides

  • 期刊论文

  • 发表日期：

    2026年3月16日

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  • Rafael López-Cruz,
  • Juan Arturo Ragazzo-Sánchez,
  • Montserrat Calderón-Santoyo

摘要

The biocontrol activity of Meyerozyma guilliermondii LMA-Cp01, pure and in combination with sodium propionate (SP), sodium bicarbonate (SBC), or sodium benzoate (SB) against Colletotrichum gloeosporioides on anthracnose spoilage of mango fruit was investigated. SP, SBC, and SB at 1, 0.5, and 0.25% concentrations did not affect the growth of M. guilliermondii in nutrient-yeast-dextrose broth (NYDB), respectively. Population growth of M. guilliermondii in mango fruit wounds was not affected by the addition of SP or SB. M. guilliermondii, as a stand-alone or in combination with GRAS treatments, significantly reduced the growth of C. gloeosporioides on PDA plates, and the disease incidence and lesion diameter of anthracnose on mango fruits. In vitro tests showed that 0.5 and 1% SP and 0.1% SB significantly enhanced the growth inhibition of C. gloeosporioides. SB at 0.1% increased the biocontrol efficacy of the yeast from 41% to 75% for the incidence and, from 64% to 91%, of lesion diameter in reducing anthracnose decay on mango fruit. The combination of M. guilliermondii and SB presented a synergistic effect against the pathogenic fungi. M. guilliermondii, combined with SP or SB, maintained the quality parameters equal to those of the control treatment. Integration of M. guilliermondii LMA-Cp01 and GRAS salts represents an efficient alternative to chemical fungicides to manage anthracnose in mango fruit.