植物铁应激转录组分析研究进展

Transcriptomic analysis of plant responses to iron environments has been a hot topic in the fields of botany, biotechnology, and agricultural science. In recent years, numerous studies have been conducted by scholars both domestically and internationally to characterize the potential mechanisms of iron deficiency or iron toxicity-induced responses in different plant species, such as Arabidopsis thaliana, soybean, maize, wheat, chickpea, and Chinese cabbage (Buckhout TJ, et al., 2009; J Rodriguez-Celma, et al., 2012; JA O’Rourke, et al., 2009; Y Li, et al., 2014; A Zamboni, et al., 2017; YUAN J, et al., 2022; SINGH G, et al., 2023). These studies have shown that iron absorption, transport, and storage in plants involve systematic cooperation between tissues and organelles, as well as the fine coordination of iron chelators, transporters, and several regulatory factors. For example, transcriptomic studies on iron deficiency stress in non-seed Chinese cabbage have identified many differentially expressed genes (DEGs) related to antioxidant enzyme activities, such as peroxidase (POD) and superoxide dismutase (SOD) (SINGH G, et al., 2023). Additionally, transcriptomic analysis of iron deficiency stress in the roots of hexaploid wheat has revealed that genes involved in iron ligand synthesis, such as nicotianamine (NA) and deoxymugineic acid (DMA), are significantly upregulated during iron deficiency. Furthermore, it was found that iron deficiency induces the expression of genes related to nicotianamine (NA) and deoxymugineic acid (DMA) (WANG M, et al., 2020). These studies provide valuable insights for transcriptomic research on the response of Phyllostachys edulis (moso bamboo) to iron stress.