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. 2022 Mar 2;10(3):549. doi: 10.3390/microorganisms10030549

Figure 5.

Figure 5

Biosynthesis of phytohormone ethylene in plants and detoxification of the byproduct HCN via β-cyano-l-alanine (AlaCN) (according to [2,52], modified). The synthesis of AlaCN proceeds in plants and, rarely, in bacteria. The hydrolysis of AlaCN proceeds in plants but also in some bacteria and fungi. NIT4, nitrilase specific for AlaCN (plant enzymes in black, bacterial enzymes in red).