Search and clarification of a novel molecular function of 5-amonolevulinate

点击翻译按钮获取中文摘要

5-aminolevulinic acid (ALA) is a primary metabolite which almost all living organism produce by theirselves. It's metabolic products, tetrapyrrole compounds, play critical roles as heme in blood and various oxidases, siroheme in N/S assimilation enzymes, chlorophyll in plant, and vitamin B12. Furthermore, external ALA-feeding confers increase of resistance to environmental stress to plants. In this study, we examined carefully the phenomena and tried to clarify the molecular mechanisms. We found that exogenous ALA contributes recovery of heme but not directly of chlorophyll and identified ALA-inducible transcription factors from tomato and Arabidopsis.