Fusarium graminearum and F. culmorum cause the most widespread wheat disease Fusarium head blight (FHB). The present study describes that the Fusarium inoculation of the wheat spikes caused systemic changes in the key elements of the antioxidant/detoxification defence system in the flag leaf during the grain filling period in wheat lines differing in biotic stress susceptibility to explore changes in some components of the response. According to our data, the inoculation with both F. graminearum and F. culmorum at the anthesis changed significantly the activities of superoxide dismutase (SOD) and guaiacol peroxidase (POD) enzymes, as well as the glutathione transferase (GST) activity in the flag leaves of the selected wheat lines approx. two weeks later after the infection. In silico approach supported the expressional up-regulation of various GST genes upon Fusarium infection. Based on our results, GST sequences TaGSTF26 and TaGSTU120 were among the series of important stress response genes, which were transcriptionally up-regulated, thus possibly playing a role in the systemic response to Fusarium infection, where TaGSTF26 might have an important role in the successful defence. These GSTs can serve as effective markers of the detoxification process for breeders and plant protection in the future.

Fusarium graminearum和F. culmorum引起最普遍的小麦病害镰刀菌头枯病 (FHB)。本研究描述了在不同生物胁迫敏感性的小麦株系灌浆期，接种镰刀菌引起了旗叶抗氧化/解毒防御系统关键要素的系统性变化，以探索小麦穗部某些成分的变化。响应。根据我们的数据，接种禾谷镰刀菌和黄金镰刀菌花期显着改变了所选小麦品系旗叶中超氧化物歧化酶 (SOD) 和愈创木酚过氧化物酶 (POD) 酶的活性，以及​​谷胱甘肽转移酶 (GST) 的活性。感染两周后。计算机方法支持镰刀菌感染后各种GST基因的表达上调。根据我们的结果，GST 序列 TaGSTF26 和 TaGSTU120 属于一系列重要的应激反应基因，它们在转录上被上调，因此可能在对镰刀菌的系统反应中起作用感染，其中 TaGSTF26 可能在成功防御中起重要作用。这些 GST 可以作为未来育种者和植物保护解毒过程的有效标志。