Enhanced allelopathy and competitive ability of invasive plant Solidago canadensis in its introduced range
Enhanced allelopathy and competitive ability of invasive plant Solidago canadensis in its introduced range
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DOI：
10.1093/jpe/rts033
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发表时间：
2013-06
影响因子：
2.7
通讯作者：
Yongge Yuan;B. Wang;Shanshan Zhang;Jianjun Tang;C. Tu;Shuijin Hu;J. Yong;Xin Chen
中科院分区：
文献类型：
--
作者：
Yongge Yuan;B. Wang;Shanshan Zhang;Jianjun Tang;C. Tu;Shuijin Hu;J. Yong;Xin Chen
为什么入侵植物在其引种地比本地地更具竞争力，这是植物入侵生态学中一个尚未解决的问题。在这里，我们使用的模式入侵植物加拿大一枝黄花测试的假设，提高生产的化感化合物的入侵植物的入侵范围内，而不是在本地范围内的竞争能力。我们还研究了化感作用对提高S. canadensis在入侵范围内。方法比较S. canadensis生长在其原产地（美国）和入侵地区（中国），也从两国收集的种群，并在“共同花园”温室实验中一起生长。并对S. canadensis对中国原生植物鸡眼草（Kummerowia striata）萌发的影响。最后，我们进行了普通花园、温室试验。striata单养或与S.以美国或中国的加拿大小球藻（canadensis）为材料，用适当的对照，
Aims Why invasive plants are more competitive in their introduced range than native range is still an unanswered question in plant invasion ecology. Here, we used the model invasive plant Solidago canaden- sis to test a hypothesis that enhanced production of allelopathic compounds results in greater competitive ability of invasive plants in the invaded range rather than in the native range. We also exam- ined the degree to which the allelopathy contributes increased com- petitive ability of S. canadensis in the invaded range. Methods We compared allelochemical production by S. canadensis growing in its native area (the USA) and invaded area (China) and also by populations that were collected from the two countries and grown together in a 'common garden' greenhouse experiment. We also tested the allelopathic effects of S. canadensis collected from either the USA or China on the germination of Kummerowia striata (a native plant in China). Finally, we conducted a common garden, greenhouse experiment in which K. striata was grown in monocul- ture or with S. canadensis from the USA or China to test the effects of allelopathy on plant-plant competition with suitable controls such