College of Food Science and Engineering, Shanxi Agricultural University, Jinzhong 030801, China.
Shanxi Engineering Research Center of Edible Fungi, Jinzhong 030801, China.
Int J Mol Sci. 2023 Aug 31;24(17):13559. doi: 10.3390/ijms241713559.
MYB transcription factors (TFs) have been extensively studied in plant abiotic stress responses and growth and development. However, the role of MYB TFs in the heat stress response and growth and development of remains unclear. To investigate the function of , , and TFs in , mutant strains of , , and were generated using RNA interference (RNAi) and overexpression (OE) techniques. The results indicated that the mycelia of OE-, OE-, and RNAi- mutant strains exhibited positive effects under heat stress at 32 °C, 36 °C, and 40 °C. Compared to wild-type strains, the OE-, OE-, and RNAi- mutant strains promoted the growth and development of . These mutant strains also facilitated the recovery of growth and development of after 24 h of 36 °C heat stress. In conclusion, the expression of and supports the mycelium's response to heat stress and enhances the growth and development of , whereas produces the opposite effect.
MYB 转录因子(TFs)在植物非生物胁迫响应和生长发育中得到了广泛研究。然而,在 的热应激响应和生长发育中,MYB TFs 的作用尚不清楚。为了研究 的功能,利用 RNA 干扰(RNAi)和过表达(OE)技术生成了 、 和 TF 的 突变株。结果表明,OE-、OE-和 RNAi-突变株的菌丝在 32°C、36°C 和 40°C 的热应激下表现出正向效应。与野生型菌株相比,OE-、OE-和 RNAi-突变株促进了 的生长和发育。这些突变株还促进了在 36°C 热应激 24 小时后 的生长和发育的恢复。总之, 和 的表达支持菌丝对热应激的响应,并增强 的生长和发育,而 则产生相反的效果。