4.4. HCN production
Among the tested isolates only P. putida PP2SS produced HCN
when grown on glycine supplemented KB-medium, indicating its
capability to catabolize glycine (Askeland and Morrison, 1993), a
common root exudate available in the rhizosphere as a precursor
for HCN synthesis. This compound is reported as a potential inhibitor
of many enzymes involved in major plant metabolic processes