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首页> 外文期刊>Archives of virology >The titers of rice tungro bacilliform virus dictate the expression levels of genes related to cell wall dynamics in rice plants affected by tungro disease
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The titers of rice tungro bacilliform virus dictate the expression levels of genes related to cell wall dynamics in rice plants affected by tungro disease

机译：水稻屯鳞状病毒的滴度决定了受屯藻疾病影响的水稻植物中与细胞壁动力学相关的基因的表达水平

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Rice tungro disease (RTD) is a devastating disease of rice caused by combined infection with rice tungro bacilliform virus (RTBV) and rice tungro spherical virus (RTSV), with one of the main symptoms being stunting. To dissect the molecular events responsible for RTD-induced stunting, the expression patterns of 23 cell-wall-related genes were examined in different rice lines with the same titers of RTSV but different titers of RTBV and in lines where only RTBV was present. Genes encoding cellulose synthases, expansins, glycosyl hydrolases, exostosins, and xyloglucan galactosyl transferase showed downregulation, whereas those encoding defensin or defensin-like proteins showed upregulation with increasing titers of RTBV. RTSV titers did not affect the expression levels of these genes. A similar relationship was seen for the reduction in the cellulose and pectin content and the accumulation of lignin. In silico analysis of promoters of the genes indicated a possible link to transcription factors reported earlier to respond to viral titers in rice. These results suggest a common network in which the genes related to the cell wall components are affected during infection with diverse viruses in rice.
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