🌾🧬 Rice blast triggers a MAPK pathway that activates OsWRKY transcription factors. These turn on OsKCS2, which makes heptadecanoic acid. This root secretion recruits beneficial Bacillus bacteria.
Field trials show higher Bacillus leads to better disease resistance. www.nature.com/articles/s41...
This study reveals that rice roots secrete heptadecanoic acid to recruit beneficial Bacillus for defence against blast fungus, a process regulated by a MAPK pathway.