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Rice DWARF AND LOW-TILLERING and the homeodomain protein OSH15 interact to regulate internode elongation via orchestrating brassinosteroid signaling and metabolism.

The Plant cell - 27 Sept 2022

Niu Mei, Wang Hongru, Yin Wenchao, Meng Wenjing, Xiao Yunhua, Liu Dapu, Zhang Xiaoxing, Dong Nana, Liu Jihong, Yang Yanzhao, Zhang Fan, Chu Chengcai, Tong Hongning

Abstract excerpt

Brassinosteroid (BR) phytohormones play crucial roles in regulating internode elongation in rice (Oryza sativa). However, the underlying mechanism remains largely unclear. The dwarf and low-tillering (dlt) mutant is a mild BR-signaling-defective mutant. Here, we identify two dlt enhancers that show more severe shortening of the lower internodes compared to the uppermost internode (IN1). Both mutants carry alleles...

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PMID: 35789396
DOI: 10.1093/plcell/koac196
PMCID: PMC9516196

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