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Production of supernumerary plants from seed fragments in Garcinia gummi-gutta: evolutionary implications of mammalian frugivory

机译:从藤黄种子中的碎片生产多余的植物:哺乳动物节食的进化意义

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Seeds of Garcinia gummi-gutta follow `garcinia-type' of germination in which the primary root and shoot emerge from the opposite ends of the seed. The embryo, which fills up the seed, is an elongated hypocotyl with vasculature connecting the two poles. In a series of experiments we observed that removal of primary root at different stages of development does not affect germination or seedling growth; any seed fragment that contains vasculature produces a root and shoot irrespective of its size and position with precise polarity; and, a seed from which a seedling has germinated is capable of producing another seedling. We propose that the regenerative capacity of seed fragments could be a unique strategy for exploiting mammalian frugivory for seed dispersal.
机译:藤黄胶的种子遵循“藤黄型”的发芽方式,发芽的主要根和芽从种子的相反两端伸出。充满种子的胚是细长的下胚轴,脉管系统将两个极连接。在一系列实验中,我们观察到在发育的不同阶段去除初生根不会影响发芽或幼苗生长。任何含有脉管系统的种子片段都会产生根和芽,而不论其大小和位置如何,并具有精确的极性;并且,已经发芽的种子的种子能够产生另一种子。我们建议,种子碎片的再生能力可能是利用哺乳动物节食进行种子传播的独特策略。

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