Acknowledgment
We thank Ms. Megumi Nishi for preparing the rice cell samples used in metabolome analysis. This work was supported in part by JSPS KAKENHI (Grant Number JP19K05755).
Author contributions: KO and TM conceived and designed the research. KO and YN performed experiments and analyzed the data. AU generated biuret hydrolase overexpressing rice lines. KO wrote the manuscript with input from other authors.
Funding: This work was supported in part by JSPS KAKENHI Grant Number JP19K05755.