Auxin activity of ring-alkylated derivatives of indole-3-acetic acid (CROSBI ID 463289)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa
Podaci o odgovornosti
Salopek, Branka ; Dolušić, Eduard ; Magnus, Volker
engleski
Auxin activity of ring-alkylated derivatives of indole-3-acetic acid
The growth-promoting activities of ring-alkylated (alkyl = 2-, 4-, 5-, 6-, or 7-methyl ; 4- or 5-ethyl ; 5-propyl or 5-butyl) derivatives of indole-3-acetic acid (IAA) in the Avena coleoptile straight-growth assay were determined and correlated with structural parameters. Auxin activity was expressed as the net elongation of coleoptile sections (in per cent of the response in control experiments with non-substituted IAA) at the optimal concentrations (about 4 ľmol/l) of the compounds examined. The elongations observed were dependent on the structures of the substituents and on their position at the indole nucleus. A methyl group in any but the 2-position increased biological activity up to 150% (5-methyl IAA). The elongation response decreased notably as the length of the alkyl chain increased. Thus, for example, 5-ethyl, 5-propyl, and 5-butyl IAA had 74%, 55%, and 46% of the growth-promoting activity of unsubstituted IAA.
auxin activity; indole-3-acetic acid; IAA; ring-alkylated IAA
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
169-169-x.
1997.
objavljeno
Podaci o matičnoj publikaciji
Zbornik sažetaka priopćenja Šestog kongresa biologa Hrvatske = Proceedings of abstracts of the papers of the Sixth Congress of Croatian Biologists
Huber, Đuro
Zagreb: Hrvatsko biološko društvo
Podaci o skupu
Šesti Kongres Biologa Hrvatske
pozvano predavanje
22.09.1997-26.09.1997
Opatija, Hrvatska