Polygalacturonase and polymethylgalacturonase activity was detected in 13 strains of Phaeomoniella chlamydospora as well as in filtrates of isolates of some related fungi (Phaeoacremonium aleophilum, P. inflatipes, P. rubrigenum). Tests consisted of growth and colorimetric assays on media designed to evaluate different pectic enzymes. Phaeomoniella isolates on the same medium did not differ greatly in their morphological and cultural characters, but pectinolytic activity differed among isolates.
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Marchi et al. (2001) studied this question.