Physiological evidence for the accumulation of restrained wall loosening potential on the growth-inhibited side of graviresponding rye coleoptiles.
Subsequent to inversion, horizontally pre-gravistimulated coleoptiles exhibit an increased gravicurvature capacity as compared to vertically pre-gravistimulated and subsequently horizontally gravistimulated coleoptiles. This indicates that gravistimulated inhibition of growth of the upper organ flank during gravicurvature is mediated via the retention of wall loosening potential. After inversion, this potential contributes to enhanced cell extension on the then physiologically lower side.
Edelmann
H G
HG
Botanisches Institut der Universitat Bonn, Abteilung Zellbiologie der Pflanzen, Germany. edelmann@uni-bonn.de
Samajova
O
O
D002473:Cell Wall / Q000502:physiology*; D018548:Cotyledon / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism; D006112:Gravitation; D018522:Gravitropism / Q000502:physiology*; D007210:Indoleacetic Acids / Q000378:metabolism; D019897:Periplasm / Q000502:physiology; D019441:Plant Epidermis / Q000166:cytology / Q000502:physiology; D010937:Plant Growth Regulators / Q000378:metabolism; D012434:Secale / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism
D007210:Indoleacetic Acids; D010937:Plant Growth Regulators; C030737:indoleacetic acid