硫化氢（hydrogensulfide,H2S）是继一氧化氮（nitricoxide,NO）、一氧化碳和(carbonmonooxide,CO)之后被广泛关注的气体信号分子，低浓度的H2S在动物、植物和微生物中被证实参与了众多生理生化过程，调节了有机体的生长发育。H2S在植物应对盐害、干旱、重金属胁迫、冷热胁迫中发挥重要作用，增强植物对逆境的抵抗力。 铜污染是环境污染中不容忽视的一类重金属污染。本文中，我们以水稻（Oryzasativa）为材料，研究了H2S对铜胁迫的影响。结果显示低浓度的H2S(供体为NaHS)能在一定程度上缓解水稻幼苗铜胁迫。主要结果如下： 水稻幼苗生长到第7天开始处理...Hydrogen sulfide (H2S) was found to be a promising gaseous transmitter in organism after nitric oxide (NO) and carbon monoxide (CO). In animals, plants and microbe, low concentration of H2S is involved in many physiological processes and regulates the growth and development of organisms. Furthermore, H2S was proven to play a vital role on plant growth and development as well as the tolerance to a ...学位：理学硕士院系专业：生命科学学院_植物学学号：2162012115246
