Isolation, characterization, and production of red pigment from Cercospora piaropi a biocontrol agent for waterhyacinth.
A red pigment produced by a Mexican isolate of Cercospora piaropi (waterhyacinth pathogen) has been isolated and identified as cercosporin. The kinetic of cercosporin production in culture media during dark/light regimes was evaluated. When C. piaropi was cultivated in continuous light and potato dextrose broth culture, a maximum of cercosporin production was observed (72.59 mg/l). Despite other reports, C piaropi Mexican isolate produce cercosporin in dark conditions (25.70 mg/l). The results suggest that production of cercosporin in C. piaropi-waterhyacinth pathogenesis is an important factor to take into account in biocontrol strategies.
Jiménez
Maricela Martínez
MM
Instituto Mexicano de Tecnología del Agua, Paseo Cuauhnáhuac 8532, 62550, Progreso Jiutepec, Morelos, México. mmartine@tlaloc.imta.mx
Bahena
Selenia Miranda
SM
Espinoza
César
C
Trigos
Angel
A
D001203:Ascomycota / Q000737:chemistry* / Q000254:growth & development / Q000302:isolation & purification; D003470:Culture Media / Q000737:chemistry; D003624:Darkness; D031806:Eichhornia / Q000382:microbiology*; D009682:Magnetic Resonance Spectroscopy; D008800:Mexico; D015394:Molecular Structure; D010569:Perylene / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism; D010572:Pest Control, Biological / Q000379:methods; D010860:Pigments, Biological / Q000737:chemistry / Q000302:isolation & purification* / Q000378:metabolism*
D003470:Culture Media; D010860:Pigments, Biological; D010569:Perylene; C026363:cercosporin