Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/3276
Title: Sterols and polyamines in IPT-transformed tobacco plants
Authors: Geuns, JMC
Van Loenhout, HEM
VALCKE, Roland 
VAN LOVEN, Karen
Redig, P
Veselov, SY
Kudoyarova, GR
Van Onckelen, HA
Vendrig, JC
Issue Date: 1997
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Source: PHYTOCHEMISTRY, 44(5). p. 797-804
Abstract: Free sterol and free polyamine contents were determined in the apex and the leaves of control and Pssu-ipt transformed tobacco (Nicotiana tabacum L. cv. Petit Havana SR1). The older leaves of ipt-transformed plants contained a much higher putrescine (put) content than those of control SR1 plants, whereas no significant differences for spermidine (spd) or spermine (spm) were found between control and ipt plants. Putrescine content corresponded well with endogenous cytokinin (free-bases) content and with ornithine- and ornithine-decarboxylose (ODC and ADC) activities. Plants transformed with ipt were characterized by a higher sterol content in the leaves and by a delay in the increase in the stigmasterol/sitosterol ratio that occurs from the upper to the lower leaves. Copyright (C) 1997 Elsevier Science Ltd.
Notes: LIMBURGS UNIV CTR,DEPT SBG,B-3590 DIEPENBEEK,BELGIUM. UNIV INSTELLING ANTWERP,LAB PLANT PHYSIOL,B-2610 WILRIJK,BELGIUM. RUSSIAN ACAD SCI,INST BIOL,BASHKIR SCI CTR,UFA 450054,BASHKORTOSTAN,RUSSIA.Geuns, JMC, KATHOLIEKE UNIV LEUVEN,LAB PLANT PHYSIOL,MERECIERLAAN 92,B-3001 HEVERLEE,BELGIUM.
Keywords: Nicotiana tabacum; Solanaceae; tobacco; polyamines; sterols; ipt; cytokinin
Document URI: http://hdl.handle.net/1942/3276
DOI: 10.1016/S0031-9422(96)00631-0
ISI #: A1997WJ34300006
Type: Journal Contribution
Appears in Collections:Research publications

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