The OsPS1-F gene regulates growth and development in rice by modulating photosynthetic electron transport rate
| Autor: | Rengasamy Ramamoorthy, Bhushan Vishal, Prakash P. Kumar, Srinivasan Ramachandran |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Chlorophyll Mutant Plant Science Biology Photosystem I 01 natural sciences Electron Transport 03 medical and health sciences chemistry.chemical_compound Gene Expression Regulation Plant Amino Acid Sequence Photosynthesis Phylogeny Photosystem Plant Proteins Oryza sativa Photosystem I Protein Complex Sequence Homology Amino Acid Genetic Complementation Test Wild type food and beverages Gene Expression Regulation Developmental Oryza General Medicine Plants Genetically Modified Complementation Plant Leaves Protein Subunits 030104 developmental biology Biochemistry chemistry Mutation Agronomy and Crop Science 010606 plant biology & botany Chloroplast thylakoid membrane |
| Zdroj: | Plant cell reports. 37(2) |
| ISSN: | 1432-203X |
| Popis: | Ds insertion in rice OsPS1-F gene results in semi-dwarf plants with reduced tiller number and grain yield, while genetic complementation with OsPS1-F rescued the mutant phenotype. Photosynthetic electron transport is regulated in the chloroplast thylakoid membrane by multi-protein complexes. Studies about photosynthetic machinery and its subunits in crop plants are necessary, because they could be crucial for yield enhancement in the long term. Here, we report the characterization of OsPS1-F (encoding Oryza sativa PHOTOSYSTEM 1-F subunit) using a single copy Ds insertion rice mutant line. The homozygous mutant (osps1-f) showed striking difference in growth and development compared to the wild type (WT), including, reduction in plant height, tiller number, grain yield as well as pale yellow leaf coloration. Chlorophyll concentration and electron transport rate were significantly reduced in the mutant compared to the WT. OsPS1-F gene was highly expressed in rice leaves compared to other tissues at different developmental stages tested. Upon complementation of the mutant with proUBI::OsPS1-F, the observed mutant phenotypes were rescued. Our results illustrate that OsPS1-F plays an important role in regulating proper growth and development of rice plants. |
| Databáze: | OpenAIRE |
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