Sun Shufang, Tang Nawen, Han Kun, Wang Qunqing, Xu Qian
National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Taian 271018, China.
Departmen of Plant Pathology, College of Plant Protection, Shandong Agricultural University, Taian 271018, China.
Microorganisms. 2023 Dec 10;11(12):2954. doi: 10.3390/microorganisms11122954.
Applying plant-derived fungicides is a safe and sustainable way to control wheat scab. In this study, volatile organic compounds (VOCs) of wheat cultivars with and without the resistance gene were analyzed by GC-MS, and 2-phenylethanol was screened out. The biocontrol function of 2-phenylethanol on was evaluated in vitro and in vivo. Metabolomics analysis indicated that 2-phenylethanol altered the amino acid pathways of , affecting its normal life activities. Under SEM and TEM observation, the mycelial morphology changed, and the integrity of the cell membrane was destroyed. Furthermore, 2-phenylethanol could inhibit the production of mycotoxins (DON, 3-ADON, 15-ADON) by and reduce grain contamination. This research provides new ideas for green prevention and control of wheat FHB in the field.
施用植物源杀菌剂是防治小麦赤霉病的一种安全且可持续的方法。在本研究中，利用气相色谱 - 质谱联用仪（GC - MS）分析了具有和不具有抗性基因的小麦品种的挥发性有机化合物（VOCs），并筛选出了苯乙醇。对苯乙醇在体外和体内对[具体对象未明确]的生物防治功能进行了评估。代谢组学分析表明，苯乙醇改变了[具体对象未明确]的氨基酸途径，影响其正常生命活动。在扫描电子显微镜（SEM）和透射电子显微镜（TEM）观察下，菌丝形态发生变化，细胞膜完整性遭到破坏。此外，苯乙醇可抑制[具体对象未明确]产生霉菌毒素（呕吐毒素、3 - 乙酰脱氧雪腐镰刀菌烯醇、15 - 乙酰脱氧雪腐镰刀菌烯醇）并减少谷物污染。本研究为田间小麦赤霉病的绿色防控提供了新思路。
