ArticleRice (New York, N.Y.)2014
Genetic interaction between rice PLASTOCHRON genes and the gibberellin pathway in leaf development.
Article in Rice (New York, N.Y.), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed.
- Loci and natural alleles for leaf length and width revealed by a genome wide association study in adzuki bean.BMC plant biology · 2025Article
- Genome-Wide Identification of thePlants (Basel, Switzerland) · 2025Article
- Advancements in Rice Leaf Development Research.Plants (Basel, Switzerland) · 2024Review
- Complex epistatic interactions between ELF3, PRR9, and PRR7 regulate the circadian clock and plant physiology.Genetics · 2024Article
- Characterization of a barley (Frontiers in plant science · 2023Article
- Phyllotaxis: from classical knowledge to molecular genetics.Journal of plant research · 2021Review
- Differential expression of SlKLUH controlling fruit and seed weight is associated with changes in lipid metabolism and photosynthesis-related genes.Journal of experimental botany · 2021Article
- A Gibberellin-Mediated DELLA-NAC Signaling Cascade Regulates Cellulose Synthesis in Rice.The Plant cell · 2015Article
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2 authors.
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Abstract
backgroundThe rice PLASTOCHRON (PLA) genes PLA1 and PLA2 regulate leaf maturation and the temporal pattern of leaf initiation. Although the function of PLA genes in the leaf initiation process has been analyzed, little is known about how they affect leaf growth. Previously, we suggested that PLA1 and PLA2 function downstream of the gibberellin (GA) signal transduction pathway. In the present study, we examined the phenotype of a double mutant of pla and slender rice 1 (slr1), which is a constitutive GA response mutant. By analyzing these double mutants, we discuss the relationship between PLA-related and GA-dependent pathways and the possible function of PLA genes in leaf growth.
findingsSingle slr1 and pla mutants exhibited elongated and dwarf phenotypes in the vegetative stage, respectively. The stature and leaf size of the pla1/slr1 and pla2/slr1 double mutants were intermediate between those of the pla and slr1 single mutants. However, the effects of slr1 on leaf elongation were markedly suppressed in the pla1 and pla2 mutant backgrounds. On the other hand, the change in cell length in the double mutants was almost the same as that in the single mutants. An expression analysis of genes involved in GA biosynthesis and catabolism indicated that feedback regulation functioned normally in the pla/slr1 double mutants.
conclusionsOur genetic results confirm that PLA genes regulate leaf growth downstream of the GA pathway. Our findings also suggest that PLA1 and PLA2 are partly required for GA-dependent leaf elongation, mainly by affecting cellular proliferation.
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