Table 1.
Mutants affected in OGE displaying a salt stress phenotype.
| Mutant | Species | Organelle | Affected Gene (AGI code) | Mutant Stress Phenotype | Molecular Function | Reference |
|---|---|---|---|---|---|---|
| mda1 | Arabidopsis thaliana | Chloroplast | mTERF5 (AT4G14605) | Reduced sensitivity to ABA, salt, and osmotic stress; altered sugar responses. | [40] | |
| mterf6 | Arabidopsis thaliana | Chloroplast | mTERF6 (AT4G38160) | Salt- and ABA-hypersensitive. | Maturation of the chloroplast isoleucine tRNA (trnI.2) gene; transcription termination of the plastid rpoA polycistron | [35,36,42] |
| mterf9 | Arabidopsis thaliana | Chloroplast | mTERF9 (AT5G55580) | Reduced sensitivity to ABA, salt, and osmotic stress; altered sugar responses. | [41] | |
| mterf10 | Arabidopsis thaliana | Chloroplast | mTERF10 (AT2G34620) | Hypersensitive to salt stress; mTERF10 overexpression leads to enhanced salt and ABA tolerance. | [43] | |
| mterf11 | Arabidopsis thaliana | Chloroplast | mTERF11 (AT3G18870) | Hypersensitive to ABA and salt stress. mTERF11 overexpression leads to enhanced salt tolerance and increased ABA sensitivity. | [43] | |
| ppr40 | Arabidopsis thaliana | Mitochondria | PPR40 (AT3G16890) | Enhanced sensitivity to salt, ABA, and oxidative stress. PPR40 overexpression improves salt tolerance and reduces oxidative stress. | [45,46] | |
| pgn | Arabidopsis thaliana | Mitochondria | PGN (AT1G56570) | Hypersensitive to salt, ABA, and glucose. Enhanced ROS levels under salt stress. | [47] | |
| ahg11 | Arabidopsis thaliana | Mitochondria | AHG11 (AT2G44880) | Hypersensitive to ABA, salt, and osmotic stress. Enhanced ROS levels. | nad4 mitochondrial RNA editing | [48] |
| slg1 | Arabidopsis thaliana | Mitochondria | SLG1 (AT5G08490) | Hypersensitive to ABA, salt, and osmotic stress. Enhanced tolerance to drought in adult plants. | nad3 mitochondrial RNA editing | [49] |
| slo2 | Arabidopsis thaliana | Mitochondria | SLO2 (AT2G13600) | Hypersensitive to ABA, salt, and osmotic stress. Insensitive to ethylene. Enhanced tolerance to drought and salt in adult plants. Enhanced ROS levels. | nad4L, nad7, mttB, and nad1 mitochondrial RNA editing | [50,51] |
| wsl | Oryza sativa | Chloroplast | WSL (LOC_Os01g37870) | Hypersensitive to ABA, salinity, and sugar. Enhanced H2O2 levels. | Splicing of chloroplast transcript rpl2 | [52] |
| ppr96 | Arabidopsis thaliana | Mitochondria | PPR96 (AT2G03380) | Reduced sensitivity to ABA, salt, and oxidative stress. | [53] | |
| atrh3 | Arabidopsis thaliana | Chloroplast | AtRH3 (AT5G26742) | ABA-deficient and salt-sensitive. | Splicing of most intron-containing chloroplast genes | [54,55,56] |
| psrp2 | Arabidopsis thaliana | Chloroplast | PSRP2 (AT3G52150) | Enhanced tolerance to salt, osmotic, and cold stress. PSRP2 overexpression leads to reduced tolerance to salt, dehydration, and cold stress. | [57] | |
| sig5 | Arabidopsis thaliana | Chloroplast | SIG5 (AT5G24120) | Hypersensitive to salt stress. | Repair of stress-damaged PSII through the transcriptional activation of the psbD blue light receptor | [58] |