Tianli Tu, co-first author of Coordinated Cytokinin Signaling and Auxin Biosynthesis Mediates Arsenate-induced Root Growth Inhibition
Current Position: Ph.D student in State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, China
Education: MSc in Developmental Biology, State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, China
Non-scientific Interests: reading, swimming
Brief Bio: In 2017, I joined the group of Prof. Chuanyou Li at Shandong Agricultural University as a Ph.D student. I majorly worked in the study of mechanism of Arabidopsis thaliana root tolerance to arsenic. Here, we found that arsenic upregulates the local auxin biosynthesis in the root tip by upregulating the expression of ASA1 and ASB1; further investigation confirmed that arsenic activates cytokinin signaling by stabilizing the ARR1 protein, which directly promotes the transcription of ASA1 and ASB1 genes by binding to their promoters. Our results indicate that arsenic-induced root growth inhibition via crosstalk between auxin and cytokinin.
文章：Coordinated Cytokinin Signaling and Auxin Biosynthesis Mediates Arsenate-induced Root Growth Inhibition