Acibenzolar-S-methyl

Acibenzolar-S-methyl (ASM) is a synthetic analog of Salicylic acid (HY-B0167) and a plant activator. Acibenzolar‑S‑methyl induces increased activities of defense-related enzymes such as peroxidase and chitinase, activates stomatal defense responses and PR defense gene expression, induces the production of ROS, triggers local and systemic acquired resistance, and inhibits the proliferation of bacterial and fungal pathogens in plants. Acibenzolar‑S‑methyl can be used in studies related to plant infection^[1][2][3]. IC50 & Target:Bacterial, fungal^[1][2]. In Vitro:Acibenzolar‑S‑methyl (ASM) inhibits lesion formation by this pathogen, reduces bacterial abundance in both treated leaves and untreated systemic leaves of the Japanese radish (Raphanus sativus var. longipinnatus cultivar Natsutsukasa); triggers local and systemic stomatal closure mediated by peroxidase-derived reactive oxygen species, and enhances stomata-associated disease resistance; induces local and systemic expression of the leaf defense genes PR1, PR2, and PR3 at 4 h post-administration^[1].
Acibenzolar-S-methyl (ASM) (0.2 mg/mL) increases the activities of peroxidase and chitinase in crude enzyme extracts from leaf tissues of tomato (cv. F144)^[3].