Pectic substances/ pectin degradation

Fungi                                       Bacteria

1) Aspergillus                           1) Erwinia

2) Fusarium                             2) Xanthomonas

3) Rhizopus                              3) Pseudomonas

4) Rhizoctonia

5) Botrytis

Reactions:

pectin —-pectin methyl —-> Pectic acid

esterase

 

Pectic acid—-polygalactronase–> Galactronic acid

enzyme

Galactronic acid → CO2 +H2O + Energy