植物根系的身份识别能力、作用及影响机制

Identity Recognition of Plant Root System, Its Function and Mechanisms

摘要:

自然生境中有些植物的繁殖体传播距离有限, 这类植物更有可能与其亲缘相近的植株相邻。植物个体能否识别邻株的身份并做出相应的反应, 会对植物间的相互作用产生重要影响。亲缘选择理论预测亲缘相近的植物间可以通过亲缘识别和选择作用, 有效地削弱彼此间的干扰和竞争, 从而增加适合度。对植物通过根系进行自我/ 非我和亲缘识别能力、作用及其影响机制进行了综述, 同时指出了当前研究中存在的一些疑点和亟待解决的问题, 对植物身份识别研究的发展方向进行了展望。

Abstract:

Some plants are more likely to border upon close relative plants, as the dispersal distances of their propagules are usually limited. In this condition, the ability of plant detecting and responding the identity of its neighbors efficiently and properly would play a crucial role in the course of plant interactions. Kin selection theory predicted that plants with close kinship could reduce or avoid interference and competition effectively through kin recognition and kin selection, thus increase their fitness. The ability of self/non-self recognition and kin recognition of plant roots, and their roles and possible mechanisms were reviewed. Some doubts and unsolved problems in this field were pointed out and discussed. The study direction of plant identity recognition in plant ecological research was prospected.