Zeng Ming, Che Xiaoliang, Wang Zhe, Liu Yang, Deng Leping, Guo Yehuang, Huang Ting, Guo Wenbing
Guangdong Academy of Forestry, Guangzhou, China.
Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangzhou, China.
PeerJ. 2025 Sep 5;13:e19990. doi: 10.7717/peerj.19990. eCollection 2025.
Pine wilt disease (PWD), caused by , poses a severe threat to global pine forests. This study evaluated the susceptibility of one-year-old seedlings of three pine species-, × , and -to PWD through artificial inoculation. Results showed that all species were generally susceptible at the seedling stage, developing symptoms and experiencing high mortality within a short period. However, , native to North America, exhibited the highest resistance, with slower disease progression and reduced pinewood nematode spread. × showed intermediate susceptibility, while the native was the most vulnerable, with rapid symptom onset and extensive xylem damage. These findings provide insights into species-specific resistance and inform breeding strategies for PWD management.
松材线虫病（PWD）由[病原体未提及]引起，对全球松林构成严重威胁。本研究通过人工接种评估了三种松树一年生幼苗——[松树品种1]、[松树品种2]×[松树品种3]和[松树品种4]——对松材线虫病的易感性。结果表明，所有品种在幼苗期通常都易感，在短时间内出现症状并经历高死亡率。然而，原产于北美的[松树品种1]表现出最高的抗性，疾病进展较慢且松材线虫传播减少。[松树品种2]×[松树品种3]表现出中等易感性，而本地的[松树品种4]最易受影响，症状出现迅速且木质部广泛受损。这些发现为特定物种的抗性提供了见解，并为松材线虫病管理的育种策略提供了信息。
