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Changes in polyamines content associated with zygotic embryogenesis in the Brazilian pine, Araucaria angustifolia (Bert.) O. Ktze



Changes in polyamines content associated with zygotic embryogenesis in the Brazilian pine, Araucaria angustifolia (Bert.) O. Ktze



Revista Brasileira de Botanica 26(2): 163-168



Changes in the polyamine content were analysed in different embryo developmental stages and tissues during seed development in the conifer Araucaria angustifolia. Free polyamine contents varied according to the tissue and stage of embryo development, the highest levels occurring in the embryonic axis at the early stages, when putrescine and spermidine were most abundant. The levels of spermidine were higher from the stage where cotyledons arise, whereas putrescine decreases.

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Accession: 003672372

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DOI: 10.1590/s0100-84042003000200003


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