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Author Huang Y., Zheng P., Liu X., Chen H., Tu J.
Title OseIF3h Regulates Plant Growth and pollen Development at Translational Level Presumably through Interaction with OsMTA2.
Abstract:
The initiation stage of protein biosynthesis is a sophisticated process tightly regulated by numerous initiation factors and their associated components. However, the mechanism underlying translation initiation has not been completely understood in rice. Here, we showed knock-out mutation of the rice eukaryotic translation initiation factor 3 subunit h (OseIF3h) resulted in plant growth retardation and seed-setting rate reduction as compared to the wild type. Further investigation demonstrated an interaction between OseIF3h and OsMTA2 (mRNA adenosine methylase 2), a rice homolog of METTL3 (methyltransferase-like 3) in mammals, which provided new insight into how N6-methyladenosine (m6A) modification of messenger RNA (mRNA) is engaged in the translation initiation process in monocot species. Moreover, the RIP-seq (RNA immunoprecipitation sequencing) data suggested that OseIF3h was involved in multiple biological processes, including photosynthesis, cellular metabolic process, precursor metabolites, and energy generation. Therefore, we infer that OseIF3h interacts with OsMTA2 to target a particular subset of genes at translational level, regulating plant growth and pollen development.
Journal Plants (Basel)
Country China
Volume 10(6)
Pages
Year 2021
PubMed ID 34070794
PubMed Central ID 8228589
DOI 10.3390/plants10061101
URL -
Relation
Gene EIF3H MTA2
INSD -
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain 		-
Stages in Each Organ
- Muant Lines (Gene) 		-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase