title: Short-term and long-term clinostat and vibration-induced biochemical changes in dwarf marigold stems.
abstract: Stems of 21-day dwarf Marigold plants cultivated on the clinostat were compared with plants cultivated on vertical axis rotators ("vibrational controls") and stationary controls for long-term changes in cell wall composition. Stems of 21-day plants grown under stationary conditions and subsequently exposed to the clinostat for 24 hours were also analyzed. Among the long-tern markers, calciun, lignin, and protein-bound hemicellulose (possibly cell wall glycoprotein) clearly differentiated the effects of vibration from those of the clinostat. Short-term differential responses included rate of ethylene production, nastic movement and peroxidase activity of the cell wall, but not of the protoplast.
authors.affiliation: Department of Botany, University of Hawaii at Manoa, Honolulu 96822, USA.
authors.forename: S M
authors.initials: SM
authors.lastname: Siegel
authors.forename: B Z
authors.initials: BZ
authors.lastname: Siegel
mesh_terms: D019659:Asteraceae / Q000166:cytology / Q000201:enzymology / Q000254:growth & development* / Q000378:metabolism; D002118:Calcium / Q000378:metabolism; D002473:Cell Wall / Q000201:enzymology / Q000378:metabolism; D002482:Cellulose / Q000378:metabolism; D005030:Ethylenes / Q000378:metabolism; D006112:Gravitation; D008031:Lignin / Q000378:metabolism; D010544:Peroxidases / Q000378:metabolism; D010937:Plant Growth Regulators / Q000378:metabolism; D018521:Plant Physiological Phenomena; D018547:Plant Stems / Q000166:cytology / Q000201:enzymology / Q000254:growth & development / Q000378:metabolism*; D011134:Polysaccharides / Q000378:metabolism; D012399:Rotation; D013997:Time Factors; D014732:Vibration
chemical_list: D005030:Ethylenes; D010937:Plant Growth Regulators; D011134:Polysaccharides; D002482:Cellulose; D008031:Lignin; C036216:ethylene; D010544:Peroxidases; D002118:Calcium