Fig. 8
From: Salt stress-induced polyamine biosynthesis contributes to blast resistance in rice
Overview of responses induced by salt stress and pathogen infection in rice plants. OsSAMDC, an important polyamine biosynthesis gene, was induced during salt stress and M. oryzae infection. In the salt-stressed plant, more polyamines are accumulated in the apoplast. Polyamine (PUT, SPD, and SPM) biosynthesis responds to apoplast-localized pathogens, ultimately leading to antimicrobial defense responses