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Suppression of nbe-miR1919c-5p Expression in Nicotiana benthamiana Enhances Tobacco Curly Shoot Virus and Its Betasatellite Co-Infection.
Viruses ( IF 3.8 ) Pub Date : 2020-04-01 , DOI: 10.3390/v12040392
Jiang Du 1 , Rui Wu 1 , Zhuoying Liu 1 , Miao Sun 1 , Hussein Ghanem 1 , Mingjun Li 1 , Gentu Wu 1 , Ling Qing 1
Affiliation  

MicroRNAs (miRNAs) are non-coding but functional RNA molecules of 21-25 nucleotides in length. MiRNAs play significant regulatory roles in diverse plant biological processes. In order to decipher the relationship between nbe-miR1919c-5p and the accumulations of tobacco curly shoot virus (TbCSV) and its betasatellite (TbCSB) DNAs, as well as viral symptom development, we investigated the function of nbe-miR1919c-5p during TbCSV and TbCSB co-infection in plants using a PVX-and a TRV-based short tandem target mimic (STTM) technology. Suppression of nbe-miR1919c-5p expression using these two technologies enhanced TbCSV and TbCSB co-infection-induced leaf curling symptoms in Nicotiana benthamiana plants. Furthermore, suppression of nbe-miR1919c-5p expression enhanced TbCSV and TbCSB DNA accumulations in the infected plants. Our results can advance our knowledge on the nbe-miR1919c-5p function during TbCSV and TbCSB co-infection.

中文翻译:


抑制本塞姆氏烟草中的 nbe-miR1919c-5p 表达可增强烟草卷芽病毒及其 Betasatellite 联合感染。



MicroRNA (miRNA) 是非编码但有功能的 RNA 分子,长度为 21-25 个核苷酸。 miRNA 在多种植物生物过程中发挥着重要的调节作用。为了破译nbe-miR1919c-5p与烟草卷枝病毒(TbCSV)及其β卫星(TbCSB)DNA积累以及病毒症状发展之间的关系,我们研究了nbe-miR1919c-5p在TbCSV期间的功能使用基于 PVX 和基于 TRV 的短串联靶标模拟 (STTM) 技术在植物中进行 TbCSB 和 TbCSB 联合感染。使用这两种技术抑制 nbe-miR1919c-5p 表达可增强本塞姆氏烟草植物中 TbCSV 和 TbCSB 共同感染诱导的卷叶症状。此外,抑制 nbe-miR1919c-5p 表达可增强受感染植物中 TbCSV 和 TbCSB DNA 的积累。我们的结果可以增进我们对 TbCSV 和 TbCSB 共感染期间 nbe-miR1919c-5p 功能的了解。
更新日期:2020-04-20
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