Effect of Nutrients on Spore Germination of <i>Gliocladium Roseum</i> and <i>Ophiostoma Piceae</i>


  • Benjamin E. Dawson-Andoh
  • Rawle Lovell


Biological control, biocontrol, spore germination, sapstain, <i>Gliocladium roseum</i>, <i>Ophiostoma piceae</i>, nutrients, sugar alcohols, inorganic nitrogen compounds, amino acids


Biological control agents that are applied as spore suspensions must germinate to exert their desired effects. Nutrients are one possible factor that can be manipulated to enhance spore germination and subsequent microbial colonization of wood. Sugar alcohols, inorganic and organic nitrogen compounds (amino acids) were evaluated for their ability to selectively enhance germination of spores (conidia) of Gliocladium roseum. While sugar alcohols and inorganic nitrogen compounds showed no selective effect on spore germination of G. roseum, some of the amino acids, notably L-phenylalanine and β-alanine, selectively enhanced germination of G. roseum over Ophiostoma piceae.


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