title: Stimulation by Erwinia carotovora of the synthesis of ethylene in cauliflower tissue.
abstract: The synthesis of ethylene by cauliflower floret tissue was increased when the tissue was inoculated with the soft-rot bacterium Erwinia carotovora. This effect was clearly associated with the production of pectic enzymes by the micro-organism. These enzymes, acting together with the plant enzymes, stimulated the production of ethylene from methionine. The increased synthetic activity was due to the release and increased activity of a glucose oxidase enzyme apparently attached to plant cell-wall material and liberated by the action of pectic enzymes of the bacterium.
mesh_terms: D002374:Catalase / Q000494:pharmacology; D002473:Cell Wall; D004586:Electrophoresis; D004885:Erwinia / Q000201:enzymology / Q000378:metabolism*; D004950:Esterases / Q000378:metabolism; D005030:Ethylenes / Q000096:biosynthesis*; D005949:Glucose Oxidase / Q000378:metabolism; D006026:Glycoside Hydrolases / Q000378:metabolism; D008190:Lyases / Q000378:metabolism; D008715:Methionine / Q000378:metabolism; D008854:Microscopy, Electron; D010944:Plants / Q000378:metabolism*
chemical_list: D005030:Ethylenes; D008715:Methionine; D005949:Glucose Oxidase; D002374:Catalase; D004950:Esterases; D006026:Glycoside Hydrolases; D008190:Lyases