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Kin recognition benefits clonal offspring performance of historically grazed Leymus chinensis: insights for grassland management
Ecological Processes ( IF 4.6 ) Pub Date : 2022-05-21 , DOI: 10.1186/s13717-022-00377-x
Zhen Zhang , Xiliang Li , Junjie Duan , Juan Sun

Individual plants can identify their neighbors and adjust their biomass investment to avoid competing with their relatives or jointly cope with external stresses. Maternal effects can improve their offspring adaptability under external stresses. However, how grazing-induced maternal effects influence plant kin interactions remain unknown. Clonal offspring of Leymus chinensis grown under multi-year grazing and non-grazing conditions were used for this study. A greenhouse experiment was conducted to evaluate the performance of focal plants in the presence of kin and stranger neighbors, with the aim of analyzing the interaction between maternal effect and kin relatedness. Kin relatedness of neighboring plants affected the biomass production and allocation of focal plants, demonstrating the presence of kin recognition in L. chinensis. Moreover, grazing-induced maternal effects significantly enhanced kin recognition in the species. Consequently, the presence of stranger neighbors significantly improved the growth potential of grazed offspring. Specifically, the total biomass of clonal offspring increased by 73.1% compared to the kin group, potentially buffering grazing-induced plant productivity declines. This study shows that historical grazing enhances kin recognition in L. chinensis. Thus, introducing multi-genotypic plants can increase the productivity of grasslands. The findings of this study enhance our understanding of intraspecific plant–plant interactions in clonal species and provide new insights into sustainable grassland management.

中文翻译:

亲属识别有利于历史放牧羊草的克隆后代表现:草原管理的见解

个体植物可以识别它们的邻居并调整它们的生物量投资以避免与它们的亲属竞争或共同应对外部压力。母体效应可以提高其后代在外部压力下的适应性。然而,放牧诱导的母体效应如何影响植物亲缘相互作用仍然未知。本研究使用在多年放牧和非放牧条件下生长的羊草的克隆后代。为了分析母体效应和亲属关系之间的相互作用,进行了温室实验以评估焦点植物在有亲属和陌生人邻居的情况下的表现。邻近植物的亲属关系影响了焦点植物的生物量产生和分配,证明了中华白芍中存在亲属识别。而且,放牧引起的母体效应显着增强了该物种的亲属识别。因此,陌生人邻居的存在显着提高了放牧后代的生长潜力。具体而言,克隆后代的总生物量与亲属组相比增加了 73.1%,可能缓冲放牧引起的植物生产力下降。这项研究表明,历史放牧增强了中华羊草的亲属识别。因此,引入多基因型植物可以提高草地的生产力。这项研究的结果增强了我们对克隆物种中种内植物-植物相互作用的理解,并为可持续草地管理提供了新的见解。陌生人邻居的存在显着提高了放牧后代的生长潜力。具体而言,克隆后代的总生物量与亲属组相比增加了 73.1%,可能缓冲放牧引起的植物生产力下降。这项研究表明,历史放牧增强了中华羊草的亲属识别。因此,引入多基因型植物可以提高草地的生产力。这项研究的结果增强了我们对克隆物种中种内植物-植物相互作用的理解,并为可持续草地管理提供了新的见解。陌生人邻居的存在显着提高了放牧后代的生长潜力。具体而言,克隆后代的总生物量与亲属组相比增加了 73.1%,可能缓冲放牧引起的植物生产力下降。这项研究表明,历史放牧增强了中华羊草的亲属识别。因此,引入多基因型植物可以提高草地的生产力。这项研究的结果增强了我们对克隆物种中种内植物-植物相互作用的理解,并为可持续草地管理提供了新的见解。这项研究表明,历史放牧增强了中华羊草的亲属识别。因此,引入多基因型植物可以提高草地的生产力。这项研究的结果增强了我们对克隆物种中种内植物-植物相互作用的理解,并为可持续草地管理提供了新的见解。这项研究表明,历史放牧增强了中华羊草的亲属识别。因此,引入多基因型植物可以提高草地的生产力。这项研究的结果增强了我们对克隆物种种内植物-植物相互作用的理解,并为可持续草地管理提供了新的见解。
更新日期:2022-05-22
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