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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Physiologically mediated selfon-self discrimination in roots
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Physiologically mediated selfon-self discrimination in roots

机译：生理介导的根源自我/非自我歧视

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Recent evidence suggests that selfon-self discrimination exists among roots; its mechanisms, however, are still unclear. We compared the growth of Buchloe dactyloides cuttings that were grown in the presence of neighbors that belonged to the same physiological individual, were separated from each other for variable periods, or originated from adjacent or remote tillers on the same clone. The results demonstrate that B. dactyloides plants are able to differentiate between self and non-self neighbors and develop fewer and shorter roots in the presence of other roots of the same individual. Furthermore, once cuttings that originate from the very same node are separated, they become progressively alienated from each other and eventually relate to each other as genetically alien plants. The results suggest that the observed selfon-self discrimination is mediated by physiological coordination among roots that developed on the same plant rather than allogenetic recognition. The observed physiological coordination is based on an as yet unknown mechanism and has important ecological implications, because it allows the avoidance of competition with self and the allocation of greater resources to alternative functions. [References: 42]
机译：最近的证据表明，根源之间存在自我/非自我歧视。然而，其机制仍不清楚。我们比较了在属于同一生理个体的邻居的存在下生长，彼此分开一段可变的时期，或起源于同一克隆的邻近或偏远分till的Buchloe dactyloides插条的生长。结果表明，双歧双歧杆菌植物能够在自己和非自己的邻居之间进行区分，并且在同一个体的其他根存在下发育出越来越少的根。此外，一旦将来自同一节点的插条分离，它们就会逐渐彼此疏远，最终彼此之间成为遗传上的外来植物。结果表明，观察到的自我/非自我歧视是由同一植物上发育的根部之间的生理协调而不是异体识别所介导的。观察到的生理协调是基于一个尚不为人知的机制，并且具有重要的生态意义，因为它可以避免与自身竞争以及为替代功能分配更多的资源。 [参考：42]

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