Fluorescence probes evaluated the hydrogen peroxide level in rice roots under cadmium ion stress
作者:Yingqi Zhou、Ting Liu、Pengxu Lin、Xiaomin Yuan、Kun Luo、Can Xie、Liyi Zhou
DOI:10.1016/j.saa.2023.123178
日期:2023.12
humans, but its cadmium tolerance is poor. Therefore, it is crucial to determine whether cadmium stress causes oxidative stress in rice in order to guide rice cultivation. Hydrogen peroxide (H2O2), a highly reactive oxygen species (ROS), is one of the most critical signals in corps under oxidative stress. In this work, we adopted a near-infrared (NIR) H2O2 fluorescent probe YFE-1 and a cadmium ion (Cd2+)
非生物胁迫和氧化胁迫与植物的健康状况密切相关。植物在非生物胁迫下会产生氧化应激,诱发线粒体功能障碍,导致细胞程序性死亡,降低植物存活率。众所周知,水稻是人类必需的农作物,但其镉耐受性较差。因此,确定镉胁迫是否引起水稻氧化应激,以指导水稻栽培至关重要。过氧化氢(H 2 O 2)是一种高活性氧(ROS),是氧化应激下机体最关键的信号之一。本工作采用近红外(NIR)H 2 O 2荧光探针YFE-1和镉离子(Cd 2+)荧光探针SCP来观察Cd 2+作用下水稻根部H 2 O 2的波动情况。共孵化条件。由于响应速度快(2 min内)、斯托克斯位移大(181 nm)、选择性好、检测限低(LOD:26.4 nM)等优点,YFE-1实现了H 2 O 2产生的可视化。水稻根部的Cd 2+胁迫。该研究为评估水稻根部Cd 2+氧化应激风险提供了新思路。有望指导水稻种植业Cd 2+控制,提高水稻产量。