Abstract
Plant develops several strategies to overcome low phosphorus condition. In this study, we focus on rice, Arabidopsis thaliana, and Lotus japonicus as the model plant of Gramineae, Brasicaceae, and Leguminosae, respectively. Plants were grown hydroponically and subjected to with or without phosphorus deficient treatment during their juvenile stage. Transcriptome analysis was performed on shoot and root of each plant, and subjected to pathway analysis by using KaPPA-View. mRNA expression of several genes related to phosphorus metabolism in plant were further analyzed by using real time PCR. In all the three species, acid phophatases, nucleases, and those genes related glycolysis and starch synthesis pathway were upregulated by phosphorus deficiency. Clear difference was observed in TCA cycle or glyoxylate cycle among three species, and the most remarkable change was observed in secondary metabolite synthetic pathway. We are going to present the quantitative data of several flavonoids in the plant tissue also.
