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Reference Detail
| Reference | ||
|---|---|---|
| Author | Li H., Ji G., Wang Y., Qian Q., Xu J., Sodmergen, Liu G., Zhao X., Chen M., Zhai W., Li D., Zhu L. | |
| Title | WHITE PANICLE3, a Novel Nucleus-Encoded Mitochondrial Protein, Is Essential for Proper Development and Maintenance of Chloroplasts and Mitochondria in Rice. | |
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Abstract: Mitochondria and chloroplasts are interacting organelles that play important roles in plant development. In addition to a small number proteins encoded by their own genomes, the majority of mitochondrial and chloroplast proteins are encoded in the cell nucleus and imported into the organelle. As a consequence, coordination between mitochondria, chloroplasts, and the nucleus is of crucial importance to plant cells. Variegated mutants are chloroplast-defective mutants and are considered to be ideal models for studying the intercommunication between these organelles. Here, we report the isolation of <i>WHITE PANICLE3</i> (<i>WP3</i>), a nuclear gene involved in variegation, from a naturally occurring white panicle rice mutant. Disrupted expression of <i>WP3</i> in the mutant leads to severe developmental defects in both chloroplasts and mitochondria, and consequently causes the appearance of white-striped leaves and white panicles in the mutant plants. Further investigation showed that <i>WP3</i> encodes a protein most likely targeted to mitochondria and is specifically expressed in rice panicles. Interestingly, we demonstrate that the recessive white-panicle phenotype in the <i>WP3</i> mutant is inherited in a typical Mendelian manner, while the white-striped leaf phenotype in <i>WP3</i> is maternally inherited. Our data collectively suggest that the nucleus-encoded mitochondrial protein, WP3, plays an essential role in the regulation of chloroplast development in rice panicles by maintaining functional mitochondria. Therefore, the <i>WP3</i> mutant is an excellent model in which to explore the communication between the nucleus, mitochondria, and chloroplasts in plant cells. |
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| Journal | Front Plant Sci | |
| Country | China | |
| Volume | 9 | |
| Pages | 762 | |
| Year | 2018 | |
| PubMed ID | 29928286 | |
| PubMed Central ID | 5997807 | |
| DOI | 10.3389/fpls.2018.00762 | |
| URL | - | |
| Relation | ||
| Gene | AOX1A CAB1R CYTC1-1 RBCL RBCS3 WP3 | |
| 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 | - | |
