biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 48:637-639, 2004 | DOI: 10.1023/B:BIOP.0000047168.78207.21

The Effect of Various Lipids on Flowering of Pharbitis nil in in vitro Culture

E.G. Groenewald1, A.J. Van Der Westhuizen1
1 Department of Plant Sciences, University of the Free State, Bloemfontein, South Africa

The effect of applied arachidonic acid, prostaglandin (PGE1) and various sterols and combinations of arachidonic acid + sterols, on flowering of Pharbitis nil were ascertained by using a tissue culture technique. It was found that arachidonic acid, PGE1 stigmasterol, testosterone, cholesterol, stigmasterol + arachidonic acid, β-sitosterol + arachidonic acid and cholesterol + arachidonic acid all caused earlier flowering. Four inhibitors of prostaglandin biosynthesis (gentisic acid, acetylsalicylic acid, salicylic acid and oleic acid), inhibited flowering completely. The results confirm that the compounds tested could possibly play a role in the flowering of P. nil.

Keywords: arachidonic acid; inhibitors of prostaglandin biosynthesis; prostaglandin; short-day plant; sterols

Published: December 1, 2004  Show citation

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Groenewald, E.G., & Van Der Westhuizen, A.J. (2004). The Effect of Various Lipids on Flowering of Pharbitis nil in in vitro Culture. Biologia plantarum48(4), 637-639. doi: 10.1023/B:BIOP.0000047168.78207.21
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