Glufosinate ammonium (GLA), a harmful plant (example: ecosystem disturbance plant) remover occurred using secondary metabolites produced by soil actinomycetes (Streptomyces spp.). GLA suppresses the synthesis of glutamine, an amino acid essential for plant survival, and kills weeds within 4 to 5 days after spraying. Because GLA irreversibly inhibits glutamine synthetase (GS) in plants, it can control annual and perennial weeds in agricultural land. In Korea, it is registered for use in 44 crops including orchards and furrows of major field crops. When GLA sprayed on the soil, it immediately binds to the soil particles and becomes inactive. So it does not remain and biodegradation is fast in the soil because it is extracted from soil microorganisms. It also has no toxicity to non-target animals. Therefore, there must be legal support for GLA to be sprayed, although limited to suppress the spread of ecosystem-disrupting plants that occur in non-agricultural land other than agricultural land. It is also necessary to publicize the public accordingly.
Figures & Tables
Fig. 1. Glufosinate's mode of action (Source: CDS, 2022).