In order to identify long-distance signals under iron(Fe) deficiency in rice(Oryza sativa), TMT label technique was used to study the protein profile of phloem sap under different iron concentrations. A total of 206 differentially expressed proteins were identified: 54 were upregulated and 152 were downregulated. Most of these proteins are involved in hormone signal transduction, carbon metabolism, glutathione metabolism and mRNA transport. In addition, we measured the physiological indicators according to the differentially expressed proteins. It was found that phytohormones, sucrose, glutathione and transporters were significantly changed under iron deficiency. To further study the function of these proteins can help to reveal the long distance signaling pathway of rice in response to Fe deficiency.
Chinese Bulletin of Botany