Liu Qiaofeng, Lai Jialing, Zhang Yaozhong, Wang Xin
Department of Pathology and Pathophysiology, Chengdu Medical College, Chengdu 610083, China.
Biology (Basel). 2025 Jan 16;14(1):83. doi: 10.3390/biology14010083.
Interactions between plants and their endophytes alter their metabolic functions and ability to cope with abiotic stresses. In this study, high-throughput sequencing was used to analyze the species diversity and functions of endophytes in var. (CES) tubers under different heavy metal stress conditions. The results indicated that the number of observed endophytic species in the tubers increased under heavy metal stress ( < 0.05), leading to changes in species diversity and composition. The response of tuber endophytes to different metal concentrations varied, with certain endophytic bacteria and fungi, such as , , and , showing increased abundance and becoming the dominant species in the tubers. Additionally, new endophytic genera, and , emerged at specific metal concentrations ( < 0.05). Fatty acid salvage was enriched in the endophytes of CES, which may play an important role in assisting CES in responding to multiple heavy metal stresses. These findings showed that CES tuber endophytes undergo adaptive changes to support the ability of plants to cope with heavy metal stress.
植物与其内生菌之间的相互作用会改变它们的代谢功能以及应对非生物胁迫的能力。在本研究中，利用高通量测序分析了不同重金属胁迫条件下马铃薯品种（CES）块茎中内生菌的物种多样性和功能。结果表明，重金属胁迫下块茎中观察到的内生菌物种数量增加（P < 0.05），导致物种多样性和组成发生变化。块茎内生菌对不同金属浓度的反应各不相同，某些内生细菌和真菌，如[具体菌名1]、[具体菌名2]和[具体菌名3]，丰度增加并成为块茎中的优势物种。此外，在特定金属浓度下出现了新的内生菌属[新属名1]和[新属名2]（P < 0.05）。脂肪酸 salvage 在 CES 的内生菌中富集，这可能在协助 CES 应对多种重金属胁迫中发挥重要作用。这些发现表明，CES 块茎内生菌会发生适应性变化以支持植物应对重金属胁迫的能力。
