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Reference Detail
| Reference | ||
|---|---|---|
| Author | Yang X., Li G., Tian Y., Song Y., Liang W., Zhang D. | |
| Title | A Rice glutamyl-tRNA synthetase Modulates Early Anther Cell Division and Patterning. | |
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Abstract: Aminoacyl-tRNA synthetases (aaRSs) have housekeeping roles in protein synthesis, but little is known about how these aaRSs are involved in organ development. Here, we report that a rice (<i>Oryza sativa</i>) glutamyl-tRNA synthetase (OsERS1) maintains proper somatic cell organization and limits the overproliferation of male germ cells during early anther development. The expression of <i>OsERS1</i> is specifically detectable in meristematic layer 2-derived cells of the early anther, and <i>OsERS1</i> anthers exhibit overproliferation and disorganization of layer 2-derived cells, producing fused lobes and extra germ cells in early anthers. The conserved biochemical function of OsERS1 in ligating glutamate to tRNAGlu is enhanced by its cofactor aaRS OsARC. Furthermore, metabolomics profiling revealed that OsERS1 is an important node for multiple metabolic pathways, indicated by the accumulation of amino acids and tricarboxylic acid cycle components in <i>OsERS1</i> anthers. Notably, the anther defects of the <i>OsERS1</i> mutant are causally associated with the abnormal accumulation of hydrogen peroxide, which can reconstitute the <i>OsERS1</i> phenotype when applied to wild-type anthers. Collectively, these findings demonstrate how aaRSs affect male organ development in plants, likely through protein synthesis, metabolic homeostasis, and redox status. |
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| Journal | Plant Physiol. | |
| Country | Australia | |
| Volume | 177(2) | |
| Pages | 728-744 | |
| Year | 2018 | |
| PubMed ID | 29720556 | |
| PubMed Central ID | 6001321 | |
| DOI | 10.1104/pp.18.00110 | |
| URL | - | |
| Relation | ||
| Gene | ARC CDKB2;1 ERS1 ERS2 ERS3 _ | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
