Zhou Xiaohui, Chen Xin, Luo Xin, Wu Yanling, Li Juanjuan, Ren Jianxin, Li Jingji
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China.
Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Ministry of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China.
Plants (Basel). 2025 Jun 4;14(11):1711. doi: 10.3390/plants14111711.
Climate warming and nitrogen (N) deposition have already occurred and will continue to occur, profoundly affecting exotic plant invasion. Most studies on the effects of climate change focus on plant growth, biomass, and leaf traits, with limited reports on reproductive responses. We selected from North America and China as focal species and conducted a long-term common garden experiment simulating climate warming and N deposition to examine how climate warming, N addition, and plant origin influence its reproductive traits. Chinese exhibited significantly greater ramet height, more robust ramet diameters, longer and wider inflorescences, and higher seed mass compared to North American . Long-term warming and plant origin alone or in combination significantly influenced reproductive traits, while N addition did not influence these traits. The vegetative propagation of a native population was sensitive to warming and N addition, while the generative propagation of an invasive population was sensitive to their combined effects. These findings suggest that the reproductive strategies of varied with their origin, and plant origin might be important in mediating climate change effects on their reproduction under plant invasion.
气候变暖和氮（N）沉降已经发生并将持续，深刻影响外来植物入侵。大多数关于气候变化影响的研究集中在植物生长、生物量和叶片性状上，关于繁殖反应的报道有限。我们选择北美和中国的[物种名称未给出]作为重点物种，进行了一项模拟气候变暖和氮沉降的长期共同园实验，以研究气候变暖、施氮和植物来源如何影响其繁殖性状。与北美[物种名称未给出]相比，中国[物种名称未给出]表现出显著更高的分株高度、更粗壮的分株直径、更长更宽的花序以及更高的种子质量。长期变暖以及单独或组合的植物来源显著影响繁殖性状，而施氮对这些性状没有影响。本地种群的营养繁殖对变暖和施氮敏感，而入侵种群的有性繁殖对它们的综合影响敏感。这些发现表明，[物种名称未给出]的繁殖策略因其来源而异，并且在植物入侵情况下，植物来源可能在介导气候变化对其繁殖的影响方面很重要。
