Queried GO terms:

  idGO:0043279   Detailed information
  nameresponse to alkaloid
  namespacebiological_process
  def"Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an alkaloid stimulus. Alkaloids are a large group of nitrogenous substances found in naturally in plants, many of which have extracts that are pharmacologically active." [CHEBI:22315, GOC:jl]
  is_aGO:0010033 ! response to organic substance

Monarch genes with this GO terms:

  DPGLEAN08815