ROS production and scavenging in three cherry rootstocks under short-term waterlogging conditions
ROS production and scavenging in three cherry rootstocks under short-term waterlogging conditions
复制标题
短期涝渍条件下三种樱桃砧木ROS的产生和清除
DOI：
10.1016/j.scienta.2019.108647
复制
发表时间：
2019-11-17
影响因子：
4.3
通讯作者：
Zhang, Peng
中科院分区：
文献类型：
--
作者：
Jia, Luting;Qin, Xu;Zhang, Peng
东北地区夏季降水量大，樱桃树易发生短期内涝。内涝导致细胞氧化还原状态的强烈失衡，包括活性氧（ROS）的产生。以3种李属砧木为试材，研究了其对短期淹水胁迫的反应，以揭示根系对氧化胁迫的适应性反应。在活性氧积累方面，马哈利木对淹水胁迫的敏感性高于拟樱桃木和樱桃木×灰青木。在活性氧积累过程中，过氧化氢酶（CAT）、过氧化物酶（POD）和谷胱甘肽还原酶（GR）等活性氧清除剂活跃。这些结果表明，短期内涝的反应是时间和物种特异性。在早期阶段（0-3小时），没有显着的影响，根系活力被发现在任何物种的水浸。高水平的活性氧清除剂在P. pseudocereca和P. cereca x P. canescens中有助于短期淹水下的存活。
Cherry trees frequently experience short-term waterlogging due to heavy summer rainfall in Northeast China. Waterlogging causes a strong imbalance in the cellular redox state, including the production of reactive oxygen species (ROS). A comparative study of responses to short-term waterlogging in three Prunus rootstocks was undertaken to reveal adaptive responses to oxidative stress in roots. P. mahaleb was more sensitive to waterlogging stress than P. pseudocerasus and P. cerasus x P. canescens in terms of ROS accumulation. During ROS accumulation, ROS scavengers such as catalase (CAT), peroxidase (POD), and glutathione reductase (GR) were active. These results suggest that the response to short-term waterlogging was time and species specific. At the early stage (0-3 h), no significant impact on root activity was found under waterlogging in any of the species examined. Higher levels of ROS scavengers in P. pseudocerasus and P. cerasus x P. canescens contribute to survival under short-term waterlogging.