text: Penicillium verrucosum contaminates cereals, yo,
  With that ochratoxin A (OTA) flow,
  During harvest and when it's stored,
  Temperature and CO2, we explored.
  
  At twenty-five degrees or thirty degrees,
  CO2 levels, four hundred or a thousand, please,
  Matric or solute stress, negative MPa,
  Let's see how it affects the genes, okay?
  
  Growth was faster under matric stress,
  At twenty-five degrees, no less,
  CO2 concentration didn't matter much,
  P. verrucosum thrived, it had that touch.
  
  But at thirty degrees, under solute stress,
  P. verrucosum growth was suppressed, no progress,
  No growth observed at negative MPa,
  And a thousand ppm CO2, what a display.
  
  Overall, growth was slower, you see,
  Under solute stress with elevated CO2, it be,
  Compared to matric stress, in the mix,
  Existing conditions, they just can't fix.
  
  The otapksPV gene, it showed its might,
  Under elevated CO2, it took flight,
  Matric stress treatments, its expression increased,
  But the otanrpsPV gene, well, it was least.
  
  And the production of OTA, my friend,
  Under these conditions, it showed its trend,
  P. verrucosum resilient, it can survive,
  In soil and on crop debris, it'll strive.
  
  Three-way climate factors, they interact,
  P. verrucosum can handle that impact,
  Post-harvest, temperate cereals at risk,
  OTA contamination, it still persists.