Huijun Jiang1,#, Kaien Zhai3,#, Xiaofan Ye3,#, Tianwei Hu2, Jieming Jiang4, Xiaoqiu Dong1, Weihuai Pan1, Jianwei Pan2, Jianxin Shou1,*
Phyton-International Journal of Experimental Botany, Vol.91, No.12, pp. 2633-2648, 2022, DOI:10.32604/phyton.2022.021474
Abstract Grain filling is a crucial process that affects yield in rice (Oryza sativa L.). Auxin biosynthesis and signaling are
closely related to rice yield; therefore, it is important to understand the effects of auxin biosynthesis on rice grain
filling to improve crop yield. In this study, we used physiological and molecular strategies to identify the roles of
auxin in rice grain filling. Exogenous application of auxin (IAA) or auxin analogues (2, 4-D) to young spikelets
and flag leaves improved the seed-setting rate and yield per spike. Furthermore, real-time quantitative PCR assays
confirmed that nine members of the OsYUCCA family of… More >
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