Table 2.
A list of major up- and down-regulated functional proteins involved in salt tolerance in different halophytic species.
| Functional proteins | Plant species | Regulation |
Function | Reference | |
|---|---|---|---|---|---|
| Up | Down | ||||
| IMT1 | Mesembryanthemum crystallinum (Ice plant) | ↑ | – | Produces D-ononitol, which is further epimerized to D-pinitol | Vernon and Bohnert (1992), Bohnert et al. (1994) |
| Major Intrinsic Proteins (MIPs) | M. crystallinum (Ice plant) | – | ↓ | Involved in water flux | Yamada et al. (1995) |
| OEE | Bruguiera gymnorrhiza | ↑ | – | Repair the injury of the PSII complex | Tada and Kashimura (2009) |
| Aeluropus lagopoides | ↑ | – | Sobhanian et al. (2010) | ||
| Puccinellia tenuiflora | – | ↓ | Yu et al. (2011) | ||
| HSP70 | B. gymnorrhiza | – | Repair the injury of the PSII complex | Tada and Kashimura (2009) | |
| Tangut nitraria | ↑ | – | folding of nascent chain polypeptides | Cheng et al. (2015) | |
| A. lagopoides | ↑ | – | import/translocation of mitochondrial or chloroplast precursor proteins | Sobhanian et al. (2010) | |
| HSP60 | Physcomitrella patens | ↑ | – | transport of proteins from the cytoplasm to mitochondrial matrix, refolding of proteins | Wang et al. (2008b) |
| PGAM | Kandelia candel | ↑ | – | Enzymes of EMP pathway | Wang et al. (2014) |
| FRK | K. candel | ↑ | – | Enzymes of EMP pathway | Wang et al. (2014) |
| Rubisco LSU and RCA | Salicornia europaea | ↑ | – | ROS scavengimg, calvin cycle | Wang et al. (2009), Fan et al. (2011) |
| Porteresia coarctata | ↑ | – | Calvin cycle | Sengupta and Majumder (2009) | |
| P. tenuiflora | ↑ | – | Ros scavenging, calvin cycle | Yu et al. (2011) | |
| Dunaliella salina | ↑ | – | Photosynthesis related protiens | Liska et al. (2004) | |
| CAB | A. lagopoides | ↑ | – | PSI | Sobhanian et al. (2010) |
| Cakile maritima | ↑ | – | PSI | Debeza et al. (2012) | |
| P. patens | – | ↓ | PSI | Wang et al. (2008b) | |
| T. nitraria | – | ↓ | PSI | Cheng et al. (2015) | |
| Proline dehydrogenase (PDH) | Thellungiella halophila | – | ↓ | Proline degradation | Wang et al. (2013) |
| D2 protein | Suaeda aegyptiaca | ↑ | – | PSII | Askari et al. (2006) |
| A. lagopoides | ↑ | – | PSII | Sobhanian et al. (2010) | |
| D1 | P. tenuiflora | – | ↓ | PSII assembly/stabilization | Yu et al. (2011) |
| APX, Fe-SOD, PHGPX | Halogeton glomeratus | ↑ | – | Antioxidative | Wang et al. (2014) |
| light harvesting complex (LHC) CABs | K. candel | – | ↓ | PSI | Wang et al. (2013) |
| P. tenuiflora | – | ↓ | PSI | Yu et al. (2011) | |
| P. coarctata | ↑ | – | chlorophyll a/b binding | Sengupta and Majumder (2009) | |
| P. patens | ↑ | – | chlorophyll a/b binding | Wang et al. (2008b) | |
| T. nitraria | ↑ | – | PSI | Cheng et al. (2015) | |
| SOD | S. europaea | ↑ | – | conversion of O2 to H2O and O2 | Wang et al. (2009) |
| K. candel | ↑ | – | Antioxidant properties | Wang et al. (2013) | |
| T. nitraria | ↑ | – | Antioxidant properties | Cheng et al. (2015) | |
| P. tenuiflora | ↑Upto 50 mM NaCl | ↓150 mM NaCl | Antioxidant properties | Yu et al. (2011) | |