地區:
年份:
2021
-
03
-
02
瀏覽次數
1226
近日,Frontiers in Plant Science 在線發表中國農大王建華和中國農科院劉允軍團隊題為“ Transcriptome Analysis of Maize Immature Embryos Reveals the Roles of Cysteine in Improving Agrobacterium Infection Efficiency”研究論文,系統解析了半胱氨酸提高農桿菌介導的玉米幼胚轉化效率的機理。 最近幾年,玉米的遺傳轉化效率不斷提高,其中抗氧化劑半胱氨酸可明顯提高玉米幼胚的農桿菌轉化效率,但其機理尚不明確,在本研究中作者證明通過在共培養培養基中添加半胱氨酸可以明顯HiII和Z31兩個品種的農桿菌轉化效率,半胱氨酸處理后的幼胚活性氧的含量要高于對照組,通過轉錄組測序進一步研究證明,半胱氨酸處理后939個基因表達上調,這些基因主要參與氧化還原反應過程,另外有549個基因表達下調,主要參與細胞壁和細胞膜代謝過程。 Maize Agrobacterium-mediated transformation efficiency has been greatly improved in recent years. Antioxidants, such as, cysteine, can significantly improve maize transformation frequency through improving the Agrobacterium infection efficiency. However, the mechanism underlying ...