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Reference Detail
| Reference | ||
|---|---|---|
| Author | Islam F., Khan M.S.S., Ahmed S., Abdullah M., Hannan F., Chen J. | |
| Title | OsLPXC negatively regulates tolerance to cold stress via modulating oxidative stress, antioxidant defense and JA accumulation in rice. | |
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Abstract: Exposure of crops to low temperature (LT) during emerging and reproductive stages influences their growth and development. In this study, we have isolated a cold induced, nucleus-localized lipid A gene from rice named OsLPXC, which encodes a protein of 321 amino acids. Knockout of OsLPXC resulted in enhance sensitivity to LT stress in rice, with increased accumulation of reactive oxygen species (ROS), malondialdehyde and electrolyte leakage, while expression and activities of antioxidant enzymes were significantly suppressed. The accumulation of chlorophyll content and net photosynthetic rate of knockout plants were also decreased compared with WT under LT stress. The functional analysis of differentially expressed genes (DEGs), showed that numerous genes associated with antioxidant defense, photosynthesis, cold signaling were solely expressed and downregulated in OsLPXC plants compared with WT under LT. The accumulation of methyl jasmonate (MeJA) in leave and several DEGs related to the jasmonate biosynthesis pathway were significantly downregulated in OsLPXC knockout plants, which showed differential levels of MeJA regulation in WT and knockout plants in response to cold stress. These results indicated that OsLPXC positively regulates cold tolerance in rice via stabilizing the expression and activities of ROS scavenging enzymes, photosynthetic apparatus, cold signaling genes, and jasmonate biosynthesis. |
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| Journal | Free Radic. Biol. Med. | |
| Country | China | |
| Volume | 199 | |
| Pages | 2-16 | |
| Year | 2023 | |
| PubMed ID | 36775108 | |
| PubMed Central ID | - | |
| DOI | 10.1016/j.freeradbiomed.2023.02.008 | |
| URL | - | |
| Relation | ||
| Gene | AOC APX3 APX5 APX7 APX8 COLD1 LCAT3 LOX1 LOX11 LOX7 LOX8 LPXC MSRMK2 PRXIIE2 SAPK2 SPH WRKY104 WRKY13 WRKY62 WRKY70 WRKY71 | |
| 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 | - | |
