title: Burst of ethylene upon horizontal placement of tomato seedlings.
abstract: Seedlings of Lycopersicon esculentum Mill. cv Rutgers emit a pulse of ethylene during the first 2 to 4 minutes following horizontal placement.  Because this burst appears too rapid and brief to be mediated by increase in net activity of 1-aminocyclopropane-1-carboxylic acid synthase, it might result form accelerated transformation of vacuolar 1-aminocyclopropane-1-carboxylic acid to ethylene.
authors.affiliation: Biology Department, Washington University, Saint Louis, Missouri 63130, USA.
authors.forename: M
authors.initials: M
authors.lastname: Harrison
authors.forename: B G
authors.initials: BG
authors.lastname: Pickard
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D000598:Amino Acids, Cyclic; D005030:Ethylenes / Q000096:biosynthesis*; D006112:Gravitation; D018466:Gravity Sensing / Q000502:physiology*; D018546:Hypocotyl / Q000201:enzymology / Q000378:metabolism; D008190:Lyases / Q000378:metabolism*; D018551:Solanum lycopersicum / Q000201:enzymology / Q000378:metabolism* / Q000502:physiology; D012399:Rotation; D013997:Time Factors; D014617:Vacuoles / Q000201:enzymology / Q000378:metabolism
chemical_list: D000596:Amino Acids; D000598:Amino Acids, Cyclic; D005030:Ethylenes; C023863:1-aminocyclopropane-1-carboxylic acid; C036216:ethylene; D008190:Lyases; C021773:1-aminocyclopropanecarboxylate synthase