Drought tolerance induced by sound in Arabidopsis plants

We examined the responses of sound-treated arabidopsis adult plants to water deprivation and the associated changes on gene expression. The survival of drought-induced plants was significantly higher in the sound treated plants (24,8%) compared with plants kept in silence (13,3%). RNA-seq revealed significant upregulation of 87 genes including 32 genes involved in abiotic stress responses, 31 involved in pathogen responses, 11 involved in oxidation-reduction processes, 5 involved in the regulation of transcription, 2 genes involved in protein phosphorylation/dephosphorylation and 13 involved in jasmonic acid or ethylene synthesis or responses. In addition, 2 genes involved in the responses to mechanical stimulus were also induced by sound, suggesting that touch and sound have at least partially common perception and signaling events.本研究考察了声波处理的成年拟南芥植株在缺水胁迫下的响应，以及伴随发生的基因表达变化。经声波处理的植株，其干旱诱导植株的存活率为24.8%，显著高于静默对照组的13.3%。RNA测序（RNA-seq）分析结果显示，共有87个基因出现显著上调，其中32个参与非生物胁迫响应、31个参与病原响应、11个参与氧化还原过程、5个参与转录调控、2个参与蛋白质磷酸化/去磷酸化，另有13个参与茉莉酸或乙烯的合成与响应过程。此外，另有2个参与机械刺激响应的基因也被声波诱导上调，这表明触碰与声波至少在部分感知与信号传导事件中存在共同机制。