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Reference Detail
| Reference | ||
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| Author | Zhou D., Li T., Yang Y., Qu Z., Ouyang L., Jiang Z., Lin X., Zhu C., Peng L., Fu J., Peng X., Bian J., Tang W., Xu J., He H. | |
| Title | <i>OsPLS4</i> Is Involved in Cuticular Wax Biosynthesis and Affects leaf senescence in Rice. | |
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Abstract: leaf senescence is one of the most common factors that affects the growth and yield of rice. Although numerous genes affecting leaf senescence have been identified, few involved in cuticular wax synthesis have been described for rice premature leaf senescence. Here, we cloned and characterized <i>Premature leaf senescence 4 (PLS4)</i> in rice (<i>Oryza sativa</i>), which encodes a putative 3-oxoacyl-reductase in the fatty acid biosynthetic pathway. Subcellular localization of OsPLS4 was observed in the chloroplast. A single nucleotide substitution in <i>OsPLS4</i> reduced leaf cuticular wax, and the expression levels of most wax biosynthesis-associated genes were downregulated. TEM showed chloroplast development were defective in the <i>PLS4</i> mutant. Further investigation revealed that the chlorophyll (Chl) content was reduced in the <i>PLS4</i> mutant compared with the WT and that the photosynthesis rate was lower, which caused ROS dramatic accumulation at the heading stage. These results confirmed premature leaf senescence in <i>PLS4</i> plants. Cold treatment indicated that the mutant was more sensitive than the WT was to cold stress. Together, all the above results indicate that the <i>OsPLS4</i> mutation affects cuticular wax biosynthesis and chloroplast development in rice, causing reduced cuticular wax and premature leaf senescence. |
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| Journal | Front Plant Sci | |
| Country | China | |
| Volume | 11 | |
| Pages | 782 | |
| Year | 2020 | |
| PubMed ID | 32595674 | |
| PubMed Central ID | 7300252 | |
| DOI | 10.3389/fpls.2020.00782 | |
| URL | - | |
| Relation | ||
| Gene | APX1 APX2 CATB CER10 CER7 COLD1 EAS1 ERF3 FDH2 KCR1 NOL NYC1 NYC3 NYC4 OBF1 PAS2 PLS4 PRX16 RCCR1 _ _ | |
| 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 | - | |
