ArticleJournal of integrative plant biology2024
The OsMAPK5-OsWRKY72 module negatively regulates grain length and grain weight in rice.
Article in Journal of integrative plant biology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed.
- A cytochrome P450 gene, GmSUR2Journal of integrative plant biology · 2026Article
- Histone Modification Complex JMJ704-HDA709 Negatively Regulates Salinity Tolerance in Rice.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Phosphorus starvation-responsive factor OsWRKY74 promotes starch accumulation during rice grain filling under low phosphorus conditions by regulating OsSWEET11.Plant cell reports · 2026Article
- Physiological traits and related gene expression of salt tolerance in hybrid rice Jingliangyou 3261 at the seedling stage.BMC plant biology · 2026Article
- Identification of SNPs and Candidate Genes Associated with Major Drought Tolerance QTL on Wheat Chromosome 4A.Plants (Basel, Switzerland) · 2026Article
- A High-Thousand-Seed-Weight Mutant ofInternational journal of molecular sciences · 2026Article
- A novel transcription factor OsMYB73 affects grain size and chalkiness by regulating endosperm storage substances' accumulation-mediated auxin biosynthesis signalling pathway in rice.Plant biotechnology journal · 2025Article
- The OsMAPK6-OsWRKY72 module positively regulates rice leaf angle through brassinosteroid signals.Plant communications · 2025Article
- The OsMAPK5-OsWRKY72 module negatively regulates grain length and grain weight in rice.Journal of integrative plant biology · 2024Article
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Authors and funding
12 authors.
Funding
Abstract
Grain size and grain weight are important determinants for grain yield. In this study, we identify a novel OsMAPK5-OsWRKY72 module that negatively regulates grain length and grain weight in rice. We found that loss-of-function of OsMAPK5 leads to larger cell size of the rice spikelet hulls and a significant increase in both grain length and grain weight in an indica variety Minghui 86 (MH86). OsMAPK5 interacts with OsMAPKK3/4/5 and OsWRKY72 and phosphorylates OsWRKY72 at T86 and S88. Similar to the osmapk5 MH86 mutants, the oswrky72 knockout MH86 mutants exhibited larger size of spikelet hull cells and increased grain length and grain weight, whereas the OsWRKY72-overexpression MH86 plants showed opposite phenotypes. OsWRKY72 targets the W-box motifs in the promoter of OsARF6, an auxin response factor involved in auxin signaling. Dual-luciferase reporter assays demonstrated that OsWRKY72 activates OsARF6 expression. The activation effect of the phosphorylation-mimicking OsWRKY72
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