Liang Zhang: The Plant Cell First Author

Liang Zhang, first author of “The tetratricopeptide repeat protein OsTPR075 promotes heading by regulating florigen transport in rice”

Current Position: Post-doctoral Research Fellow, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China

Education: Ph.D., Wuhan Botanical Garden, Chinese Academy of Sciences, China

Non-scientific Interests: Calligraphy

Brief bio: I graduated from Wuhan Botanical Garden, Chinese Academy of Sciences and joined Dr. Shiyong Song’s lab in Zhejiang University for postdoctoral research. I focus on the regulation mechanism of heading date in rice utilizing the methods in genetics, biochemistry and molecular biology. In previous study, we isolated and identified OsFTIP1, a rice florigen transporter, regulating the heading date by affecting the transport of RFT1 in rice under long-day conditions (LDs). The mutant of OsFTIP1 showed late heading date under LDs, but displayed no defects in short days (SDs) (Song et al., 2017), which suggests that there may be other proteins responsible for the transport of Hd3a in SDs. In this study, OsFTIP9, an interacting protein of Hd3a was isolated and characterized. Loss of function in OsFTIP9 led to an obvious late heading date under SDs. Further study revealed that OsFTIP9 specifically regulates rice flowering time under SDs through facilitating Hd3a transport from companion cells to sieve elements. In addition, we show that a tetratricopeptide repeat (TPR)-containing protein, OsTPR075, interacts with both OsFTIP9 and OsFTIP1, and strengthens their respective interactions with Hd3a and RFT1. Our findings suggest that the OsTPR075-OsFTIP1/9-RFT1/Hd3a module is ultimately important for the regulation of florigen transport in rice.

 论文:The tetratricopeptide repeat protein OsTPR075 promotes heading by regulating florigen transport in rice