The role of allelopathy in plant invasion: evolutionary change vs. community response in Impatiens glandulifera
化感作用在植物入侵中的作用:凤仙花的进化变化与群落反应
基本信息
- 批准号:234572559
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Research Grants
- 财政年份:2013
- 资助国家:德国
- 起止时间:2012-12-31 至 2015-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Invasive plants present major threats to biodiversity and ecosystem processes as they competitively exclude neighbouring plants at their invasive range. Allelopathy, which is the suppression of neighbouring plants by plant-released chemicals, has been suggested as a mechanism facilitating their invasive success and competitive superiority. Particularly, the Novel Weapons Hypothesis (NWH) suggests that the allelochemicals produced by some invasive plants are novel to their invasive-range neighbours due to lack of co-adaptations, and hence provide a competitive advantage. However, a highly neglected aspect in the study of invasive plants is the possible evolution of increased allelopathic ability. Such rapid evolution of increased allelochemical production at the invasive range is predicted due to the competitive advantage it provides and as a result of release from specialist enemies, such as pathogens and herbivores. Here, I suggest a comprehensive study that will examine both the NWH and the hypothesis of evolutionary increased allelopathy in one of the most invasive plant species in Europe, Impatiens glandulifera, whose allelopathic effects, though recognized, are not yet fully established. The role of allelopathy in the invasive success of this species will be determined in a set of novel experiments that will compare both changes in the production of allelochemicals by native and invasive genotypes as well as the responses of the native and invasive-range communities to these chemicals. This study will address some key aspects that, although crucial to the study of invasive plants, are still seldom studied. These include the allelopathic effects on both coexisting plants and soil biota across the biogeographic range as well as across the invasion process between initial and late stages of invasion. The study will also address the potential genetic correlation between the production of allelopathic and anti-herbivore-compounds in invasive and native genotypes. The results of this study are expected to yield insight as to the invasive nature of I. glandulifera, for which almost no knowledge is available on biogeographic differences in either its invasive characteristics or the community response to it. The overall findings could enhance our understanding of invasion process and elucidate the evolutionary forces determining them as well as provide recommendations for management practices for control of I. glandulifera.
入侵植物对生物多样性和生态系统进程构成重大威胁,因为它们在其入侵范围内竞争性地排斥邻近植物。化感作用,即植物释放的化学物质对邻近植物的抑制,已被认为是促进其入侵成功和竞争优势的机制。特别是新武器假说(NWH)认为,一些入侵植物产生的化感物质是新的入侵范围的邻居,由于缺乏共适应,因此提供了一个竞争优势。然而,在入侵植物的研究中,一个被高度忽视的方面是可能的进化增加的化感作用能力。在入侵范围内增加化感物质生产的这种快速演变是由于它提供的竞争优势以及从专业敌人(如病原体和食草动物)释放的结果而预测的。在这里,我建议一个全面的研究,将检查两个NWH和进化增加化感作用的假说在欧洲最具侵略性的植物物种之一,凤仙花glandulifera,其化感作用,虽然承认,尚未完全建立。化感作用在这个物种的入侵成功的作用将被确定在一组新的实验,将比较这两个变化的生产化感物质的本地和入侵的基因型,以及本地和入侵范围社区对这些化学物质的反应。这项研究将解决一些关键方面,虽然对入侵植物的研究至关重要,但仍然很少研究。这些包括化感作用的共存植物和土壤生物区系的整个植物地理范围,以及整个入侵过程之间的初始阶段和入侵后期。这项研究还将解决潜在的遗传相关性之间的生产化感作用和抗草食动物的化合物在入侵和本地基因型。本研究的结果有望对I.这些研究结果有助于加深我们对入侵过程的理解,阐明决定入侵的进化力量,并为控制I. glandulifera的管理实践提供建议。有腺类。
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Competitive dominance of the invasive plant Impatiens glandulifera: using competitive effect and response with a vigorous neighbour
- DOI:10.1007/s10530-013-0509-9
- 发表时间:2014-01-01
- 期刊:
- 影响因子:2.9
- 作者:Gruntman, Michal;Pehl, Anne Katrin;Tielboerger, Katja
- 通讯作者:Tielboerger, Katja
Invasive success and the evolution of enhanced weaponry
- DOI:10.1111/oik.02109
- 发表时间:2016
- 期刊:
- 影响因子:3.4
- 作者:M. Gruntman;Sinja Zieger;K. Tielbörger
- 通讯作者:M. Gruntman;Sinja Zieger;K. Tielbörger
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Dr. Michal Gruntman, Ph.D.其他文献
Dr. Michal Gruntman, Ph.D.的其他文献
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