PMID: 11903978Mar 21, 2002Paper

Origin and basipetal transport of the IAA responsible for rooting of carnation cuttings

Physiologia Plantarum
Germán GarridoJosé Sánchez-Bravo

Abstract

The origin and transport of the IAA responsible for rooting was studied in carnation (Dianthus caryophyllus L.) cuttings obtained from secondary shoots of the mother plants. The presence of mature leaves in the cuttings was essential for rooting. Removal of the apex and/or the youngest leaves did not reduce the rooting percentage as long as mature leaves remained attached. Removal of mature leaves inhibited rooting for a 24-day period during which the basal leaves grew and reached maturity. After this period rooting progressed as in intact cuttings. Auxin (NAA + IBA) applied to the stem base of defoliated cuttings was about 60% as effective as mature leaves in stimulating rooting. Application of NPA to the basal internode resulted in full inhibition of rooting. The view, deduced from these results, that auxin from mature leaves is the main factor controlling the rooting process was reinforced by the fact that mature leaves contained IAA and exported labelled IAA to the stem. The distribution of radioactivity after application of (5-3H)-IAA to mature leaves showed that auxin movement in the stem was basipetal and sensitive to NPA inhibition. The features of this transport were studied by applying 3H-IAA to the apical cut surface...Continue Reading

References

Nov 1, 1994·Plant Physiology·B ChuF C Belanger
Jun 1, 1974·Planta·P H Rubery, A R Sheldrake

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Citations

Aug 30, 2014·Journal of Experimental Botany·Alfonso AlbaceteFrancisco Pérez-Alfocea
Jan 29, 2013·Plant Science : an International Journal of Experimental Plant Biology·María Ángeles Agulló-AntónManuel Acosta
May 22, 2004·Physiologia Plantarum·Juana Inés López NicolásJosé Sánchez-Bravo
Oct 7, 2011·Plant Biology·L da Rocha CorreaA G Fett-Neto
Oct 15, 2013·Physiologia Plantarum·María Ángeles Agulló-AntónManuel Acosta
Oct 16, 2015·BMC Genomics·Carlos Villacorta-MartínJosé Manuel Pérez-Pérez
Apr 12, 2016·Frontiers in Plant Science·Uwe DruegeMohammad R Hajirezaei
Sep 24, 2015·BMC Plant Biology·Sandra LischweskiBettina Hause
Aug 1, 2015·PloS One·Virginia BirlangaJosé Manuel Pérez-Pérez
Sep 20, 2017·Journal of Experimental Botany·Alexander HiloMohammad-Reza Hajirezaei
Oct 23, 2019·BMC Plant Biology·Ling GuanMizhen Zhao
Sep 2, 2009·Plant Signaling & Behavior·Manuel AcostaJosé Sánchez-Bravo
May 15, 2018·Frontiers in Plant Science·Antonio CanoJosé Manuel Pérez-Pérez
Dec 25, 2015·Plant Physiology·Bianka Steffens, Amanda Rasmussen

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