This study reveals that the process of crown root development and auxin-induced de novo root organogenesis during in vitro plantlet regeneration share a common auxin-OsWOX10 regulatory module in rice. In the fibrous-type root system of rice, the crown roots (CR) are developed naturally from the shoot tissues. Generation of robust auxin response, followed by activation of downstream cell fate determinants and signaling pathways at the onset of crown root primordia (CRP) establishment is essential for new root initiation.
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June 2022