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Mycopathologia. 2010 Apr;169(4):309-14. doi: 10.1007/s11046-009-9257-x. Epub 2009 Nov 26.

Isolation, characterization, and production of red pigment from Cercospora piaropi a biocontrol agent for waterhyacinth.

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  • 1Instituto Mexicano de Tecnología del Agua, Paseo Cuauhnáhuac 8532, 62550, Progreso Jiutepec, Morelos, México. mmartine@tlaloc.imta.mx


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.

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