Comparison of endogenous gibberellins in roots and shoots of elongating Salix pentandra seedlings |
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| Authors: | J. E. Olsen T. Moritz E. Jensen O. Junttila |
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| Affiliation: | Dept of Forest Genetics and Plant Physiology, Swedish Univ. of Agricultural Sciences, S-901 83 Umea, Sweden;Dept of Plant Physiology and Microbiology, IBG. Univ. of Tromsø, N-9037 Tromsø, Norway |
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| Abstract: | Gibberellins GA1, GA8. GA19. GA29. GA20 and GA56 (2-epi-GA8). were identified by combined gas chromatography-mass spectrometry in root extracts of elongating Salix pentandra L. seedlings. The presence of GA8 was also demonstrated for the first time in S. pentandra shoots. The levels of GA1, GA8, GA19, GA20 in shoot tissue and in roots were estimated by selected ion monitoring. While the amounts of GA8 and GA19 were similar in both plant parts. the levels of the biologically active GA1 and its immediate precursor GA20. were found to be much lower in roots than in shoots. |
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| Keywords: | GA1 GA8 GA19 GA20 GA29 GA56 GC-MS gibberellins roots shoots Salix pentandra |
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