Project description:Upon virus infections, the transcriptomic profile of host plants markedly changes. The rapid and comprehensive transcriptional reprogramming is critical to ward off virus attack. To learn more about transcriptional reprogramming in tobamovirus-infected pepper leaves, we carried out transcriptome-wide RNA-Seq analyses of pepper leaves following Obuda pepper virus (ObPV) and Pepper mild mottle virus (PMMoV)-inoculations.
Project description:Background: Melatonin is considered to be a polyfunctional master regulator in animals and higher plants. Exogenous melatonin inhibits plant infection by multiple diseases; however, the role of melatonin in cucumber green mottle mosaic virus (CGMMV) infection remains unknown. Results: In this study, we demonstrated that exogenous melatonin treatment can effectively control CGMMV infection. The greatest control effect was achieved by 3 days of root irrigation at a melatonin concentration of 50 µM. Exogenous melatonin showed preventive and therapeutic effects against CGMMV infection at early stage in tobacco and cucumber. We utilized RNA sequencing technology to compare the expression profiles of mock-inoculated, CGMMV-infected, and melatonin+CGMMV-infected tobacco leaves. Defense-related gene CRISP1 was specifically upregulated in response to melatonin, but not to salicylic acid (SA). Silencing CRISP1 enhanced the preventive effects of melatonin on CGMMV infection, but had no effect on CGMMV infection. We also found exogenous melatonin has preventive effects against another Tobamovirus, pepper mild mottle virus (PMMoV) infection. Conclusions: Together, these results indicate that exogenous melatonin controls two Tobamovirus infection and inhibition of CRISP1 enhanced melatonin control effects against CGMMV infection, which may lead to the development of a novel melatonin treatment for Tobamovirus control.
2022-12-30 | GSE221904 | GEO
Project description:Physostegia chlorotic mottle like virus of Eggplant
Project description:Rice tungro bacilliform virus (RTBV) is determinant of the rice tungro disease symptom. We compare the gene responses by RTBV infection between RTBV susceptive (TN1) and resistant cultivar (TW16). TN1 infected with RTBV shows the mild stunting and leaf yellowing, although TW16 shows only mild stunting at only early infection stage, and recovers the symptoms. Keywords: virus infection, disease response
Project description:RNA-binding protein (RBP)-viral RNA interactions are essential for the viral life cycle and host cell. RNA viruses depend on host RBPs to accomplish their biological cycle; however, the compendium of RBPs involved in virus infection has remained poorly characterized. It has been demonstrated that susceptibility genes frequently physically interact with vRNA to exert their proviral function. Therefore, an RNA-bound proteome (RBPome)-wide identification of host RBPs enriched under virus-infected conditions could point toward candidate S-genes. Here, we used a Silica-based Acidic Phase Separation approach to elucidate RBPome changes following Rice yellow mottle virus infection.
Project description:293T were transfected with plasmids expressing DNA-dependent activator of IFN-regulatory factors (DAI) or retinoic acid-inducible gene 1 (RIG-I). Transfected cells were subsequently infected with influenza A/Puerto Rico/8/34 virus for 12 hours. Cell extract was subjected to FLAG Ab beads, washed, and retained. RNA was sequenced using the Illumina TruSeq Stranded Total RNA Library kit. The input sample represents total RNA from vector-infected cells.
Project description:Rice tungro bacilliform virus (RTBV) is determinant of the rice tungro disease symptom. We compare the gene responses by RTBV infection between RTBV susceptive (TN1) and resistant cultivar (TW16). TN1 infected with RTBV shows the mild stunting and leaf yellowing, although TW16 shows only mild stunting at only early infection stage, and recovers the symptoms. Keywords: virus infection, disease response Comparison between RTBV and mock infected rice. Biological replicates: 3 control, 3 infected, independently grown and harvested. 1 samples derived from 5 plants grown under same conditons