Peng Huang, first author of “Cytokinins Regulate Rice Lamina Joint Development and Leaf Angle”
Current Position: Assistant Professor, College of Life Science and Chemistry, Zhejiang Normal University
Education: Ph.D. in Crop Genetics and Breeding from the Nanjing Agricultural University (China), BSc from the Shandong Agricultural University (China)
Non-scientific Interests: reading books and watching movies
Brief bio: I have always been interested in phytohormone regulating plant growth and development. During my Ph.D., my main focus is on the molecular regulatory mechanism of brassinosteroids in regulating plant architecture and grain development in rice, under the supervision of Prof. Ji Huang and Prof. Hongsheng Zhang at the Nanjing Agricultural University. Then, I joined the group of Prof. Kewei Zhang at Zhejiang Normal University and focused on better understanding the cytokinins (CKs) regulating plant growth and development in rice.
In this work, the OsCKX3 enzyme irreversibly degrades CKs and maintains CK homeostasis in lamina joints. In the osckx3 mutant, accumulated CKs may enhance CYC U4;1 gene expression, promoting asymmetric proliferation of parenchyma cells and vascular bundle in lamina joints, resulting in reduced leaf angles. Our study highlights that the cytokinin pathway can be engineered to reduce leaf angle in rice and possibly in other cereals.