Effects of salt formulations, carbon sources, cytokinins, and auxin on shoot organogenesis from cotyledons of Pinus pinea L

Adventitious shoots were induced on cotyledons of Pinus pinea. Among seven salt formulations, three carbon sources (sucrose, glucose and fructose), and two cytokinins [6-benzyladenine (BA) and thidiazuron (TDZ)] with and without [α-naphthaleneacetic acid (NAA)], cotyledons grown on 1/2 MS medium con...

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Veröffentlicht in:Plant growth regulation 2004-07, Vol.43 (3), p.197-205
Hauptverfasser: Sul, I.W, Korban, S.S
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description Adventitious shoots were induced on cotyledons of Pinus pinea. Among seven salt formulations, three carbon sources (sucrose, glucose and fructose), and two cytokinins [6-benzyladenine (BA) and thidiazuron (TDZ)] with and without [α-naphthaleneacetic acid (NAA)], cotyledons grown on 1/2 MS medium containing sucrose and 30 μM BA produced the highest frequency of shoot organogenesis (>90%) and mean number of shoots/explant (>40% of cotyledons produced over 20 shoots/cotyledon). As for the site of shoot organogenesis along the cotyledonary explant, the highest number of shoots per explant was observed along the basal segment of the cotyledon (distal to the hypocotyl) over all cytokinin and auxin treatments tested. Shoots were elongated on a growth regulator-free medium containing activated charcoal.[PUBLICATION ABSTRACT]
doi_str_mv 10.1023/B:GROW.0000046013.47892.4f
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subjects Activated charcoal
adventitious shoots
benzyladenine
Carbon sources
Charcoal
cotyledons
culture media
dose response
forest trees
fructose
glucose
Growth regulators
in vitro culture
in vitro regeneration
methodology
Microbiology
micropropagation
naphthaleneacetic acid
organogenesis
Pinus pinea
sucrose
thidiazuron
title Effects of salt formulations, carbon sources, cytokinins, and auxin on shoot organogenesis from cotyledons of Pinus pinea L
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