Waheed Abdul, Shen Lin-Lin, Nkurikiyimfura Oswald, Fang Han-Mei, Wang Yan-Ping, Andersson Björn, Zhan Jiasui, Yang Li-Na
Fujian Key Laboratory on Conservation and Sustainable Utilization of Marine Biodiversity, Fuzhou Institute of Oceanography Minjiang University Fuzhou China.
Institute of Plant Pathology Fujian Agriculture and Forestry University Fuzhou China.
Evol Appl. 2024 Jan 29;17(1):e13643. doi: 10.1111/eva.13643. eCollection 2024 Jan.
Reproductive systems play an important role in the ecological function of species, but little is known about how climate change, such as global warming, may affect the reproductive systems of microbes. In this study, 116 isolates sampled from five different altitudes along a mountain were evaluated under five temperature regimes to determine the effects of historical and experimental temperature on the reproductive system of the pathogen. Both altitude, a proxy for historical pathogen adaptation to temperature, and temperature used in the experiment affected the sexual reproduction of the pathogen, with experimental temperature, that is, contemporary temperature, playing a role several times more important than historical temperature. Furthermore, the potential of sexual reproduction, measured by the number of oospores quantified, increased with the temperature breadth (i.e., difference between the highest and lowest temperature at which sexual reproduction takes place) of the pathogen and reached the maximum at the experimental temperature of 21°C, which is higher than the annual average temperature in many potato-producing areas. The results suggest that rising air temperature associated with global warming may increase the potential of sexual reproduction in . Given the importance of sexuality in pathogenicity and ecological adaptation of pathogens, these results suggest that global warming may increase the threat of to agricultural production and other ecological services and highlight that new epidemiological strategies may need to be implemented for future food security and ecological resilience.
生殖系统在物种的生态功能中起着重要作用，但对于气候变化（如全球变暖）如何影响微生物的生殖系统却知之甚少。在本研究中，从一座山上五个不同海拔采集的116个分离株在五种温度条件下进行评估，以确定历史温度和实验温度对病原体生殖系统的影响。海拔（作为病原体历史上对温度适应的一个指标）和实验中使用的温度都影响病原体的有性生殖，其中实验温度，即当代温度，其作用比历史温度重要数倍。此外，通过量化的卵孢子数量衡量的有性生殖潜力，随着病原体的温度幅度（即发生有性生殖的最高温度与最低温度之间的差异）增加，并在21°C的实验温度下达到最大值，这一温度高于许多马铃薯产区的年平均温度。结果表明，与全球变暖相关的气温上升可能会增加[病原体名称未明确]有性生殖的潜力。鉴于有性生殖在病原体致病性和生态适应性方面的重要性，这些结果表明全球变暖可能会增加[病原体名称未明确]对农业生产和其他生态服务的威胁，并突出表明可能需要实施新的流行病学策略以保障未来的粮食安全和生态恢复力。
