Volatilized myrcene inhibits growth and activates defense responses in rice roots

Yu Chywan Hsiung, Yun An Chen, Shao Yen Chen, Wen Chang Chi, Ruey Hua Lee, Tzen Yuh Chiang, Hao Jen Huang

研究成果: Article同行評審

16 引文 斯高帕斯(Scopus)


We aimed to analyze the phytotoxic effect of the allelopathic volatile myrcene on rice seedlings, particularly root growth, reactive oxygen species (ROS) generation, and activity of antioxidant enzymes and defense-related genes. Myrcene inhibited the growth of rice seedlings. The activity of ROS and lipoxygenase (LOX) was significantly increased with increasing myrcene concentration in roots and that of antioxidant enzymes was altered dose-dependently. The activity of superoxide dismutase and peroxidase was changed at 24 h after myrcene treatment in rice roots. Furthermore, the mRNA expression of three mitogen-activated protein kinase genes (OsMPK2, 3, and 4), WRKY transcription factor gene (OsWRKY71), LOX gene (OsLOX3), pathogenesis-related protein 1b gene (OsPR1b) and cyclin-dependent protein kinase inhibitor (OsCKI) was upregulated and that of cyclin genes OsCycA1;1, OsCycB1;1 and OsCycD1;1 was downregulated with myrcene treatment in rice roots. These results may provide new insights into the molecular basis of the allelopathic volatile response in plants.

頁(從 - 到)2475-2482
期刊Acta Physiologiae Plantarum
出版狀態Published - 2013 8月

All Science Journal Classification (ASJC) codes

  • 生理學
  • 農學與作物科學
  • 植物科學


深入研究「Volatilized myrcene inhibits growth and activates defense responses in rice roots」主題。共同形成了獨特的指紋。