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Gibberellins in immature seeds and dark grown shoots of pisum sativum gibberellins identified in the tall cultivar alaska in comparison with those in the dwarf cultivar progress no. 9



Gibberellins in immature seeds and dark grown shoots of pisum sativum gibberellins identified in the tall cultivar alaska in comparison with those in the dwarf cultivar progress no. 9



Planta (Heidelberg) 163(2): 283-289



Gibberellins (GAs) A1-, A19, A20, A29, A44, 2.beta.OH-GA44 (tentative) and GA29-catabolite were identified in 21-day old seeds of P. sativum 'Alaska' (tall). These GAs are qualitatively similar to those in dwarf 'Progress No. 9' with the exception of GA19 which does not accumulate in 'Progress' seeds. There was no evidence for the presence of 3-hydroxylated GA in 21-day old Alaska seeds. Dark-grown shoots of the cultivar Alaska contain GA1, GA8, GA20, GA29, GA8-catabolite and GA29-catabolite. Dark-grown shoots of 'Progress No. 9' contain GA8, GA20, GA29 and GA29-catabolite, and the presence of GA1 was strongly indicated. Quantitation using GA labeled with stable isotope showed the level of GA1 in dark-grown shoots of the 2 cultivars to be almost identical, while the levels of GA20, GA29 and GA29-catabolite were significantly lower in 'Alaska' than in 'Progress No. 9'. The levels of these GA in dark-grown shoots were 102-103-fold less than the levels in developing seeds. The 2-epimer of GA29 is present in dark-grown shoot extracts of both cultivars and is not thought to be an artefact.

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Accession: 005524168

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Related references

Gibberellins in immature seeds and dark-grown shoots of Pisum sativum : Gibberellins identified in the tall cultivar Alaska in comparison with those in the dwarf Progress No. 9. Planta 163(2): 283-289, 1985

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