From: Recent achievements obtained by chloroplast transformation
Site of integration | Regulatory sequences | Transgene/s | Efficiency of expression | Enhanced traits | References |
---|---|---|---|---|---|
rbcL/accD | Prrn/rbcL 3′ | panD | >4-fold β-alanine | Tolerance to high-temperature stress | [39] |
trnI/trnA | Prrn/ggagg/psbA | tps1 | >169-fold transcript | Drought tolerance: growth in 6% polyethylene glycol and rehydration after 24Â days of drought | [40] |
rbcL/rbcL | psbA/psbA/3′rbL | Hppd | 5% TSP | Resistance to herbicide | [41] |
trnI/trnA | Prrn/T7 10/rps16 | Badh | 93–101 μM g−1 FW | Salt tolerance: carrot plants survived up to 400 mM NaCl | [42] |
trnfM/trnG | atpI/rps16 | Lycopene β-cyclase | 0.28 mg g−1 DW | Herbicide resistance and triggers conversion of lycopene | [43] |
rbcL/accD | Prrn/ggagg/psbA | EPSPS/aroA | NR | Resistance to glyphosate (>5Â mM) | [32] |
prs14/trnG | Prrn/T7 g10/TrbcL | HTP, TCY, TMT | NR | Cold-stress tolerance and increase in vitamin E in fruit | [44] |
trnV/rps7/12 | Prrn/Trps16 | EPSPS | >10% TSP | Resistance to the herbicide glyphosate | [45] |
trnV/rps12/7 | Prrn/TrbcL | b-bar1 | >7% TSP | Resistance to the herbicide phosphinothricin | [46] |
trnI/trnA | Prrn/psbA/psbA | phaA | 14.71 β-ketothiolase mg−1 FW | Engineered cytoplasmic male sterility | [47] |
trnI/trnA | Prrn/T7 g 10/TpsbA | γ-TMT | >7.7% TSP | Increased salt tolerance and enhanced accumulationof ɑ-tocopherol in seeds | [48] |
trnI/trnA | T7g10 or psbA | RbcS | >150-fold RbcS transcript | Restoration of RuBisCO activity in rbcS mutants | [49] |
rbcL/accD | Prrn/ggagg/psbA | cry2Aa2 | 2–3% of TSP | Resistance to Heliothis virescens, Helicoverpa zea, and Spodoptera exigua | [50] |
trnV/3′rps12 | prrn T7G10/rps12 | Trx f, Trx m | NR | Starch synthesis | [51] |
trnI/trnA | 5′psbA/3′psbA | ubiC | 25% DW | 250-fold higher pHBA polymer accumulation than nuclear transgenic lines | [52] |
rbcL/accD | PpsbA/Trsp16 | TC, γ -TMT | 3 nmol h−1 mg−1 FW | Vitamin E accumulation in tobacco and lettuce | [53] |
trnV/orf708 | psbA/psbA/psbA | BicA | ~0.1% TSP | CO2 capture within leaf chloroplasts | [54] |
trnV/rps12/7 | Prrn/rbcL/rps16 | cry1A(c) | 3–5% of TSP | Resistance to larvae of Heliothis virescens, Helicoverpa zea, and Spodoptera exigua | [55] |
rbcL/accD | Prrn/Trps16 | CrtZ, CrtW | NR | Accumulation of astaxanthin fatty acid esters in lettuce | [56] |
trnV/rps12/7 | Prrn/T7gene10/rbcL | cry1Ab | NR | Resistance to caterpillar of Anticarsia gemmatalis | [57] |
trnI/trnA | Prrn/Trps16 | MSI-99 | 89.75 μg g−1 FW | Resistance against rice blast fungus | [30] |
trnI/trnA | Prrn/TpsbA | sporamin1, CeCPI2, and chitinase2 | 0.85–1% TSP | Resistance against Spodoptera litura and Spodoptera exigua leaf spot, as well as soft rot diseases | [58] |
trnI/trnA | Prrn/ggagg/psbA | Bt cry2Aa2 operon | 45.3% TSP | 100% mortality of cotton bollworm, beet armyworm; cuboidal Bt crystals formation | [59] |
trnI/trnA | Prrn/ggagg/psbA | msi-99 | 21–43% TSP | Resistance to in planta challenge of Aspergillus flavus, Fusarium moniliforme, Verticillium dahlia, and Colletotrichum destructivum | [60] |
trnI/trnA | Prrn/ggagg/rbcL | Bt cry9Aa2 | ~10% of TSP | Resistance to Phthorimaea operculella | [61] |
trnI/trnA | Prrn/psbA/psbA | Cpo | NR | Resistance to fungal pathogens in vitro (Fusarium verticillioides, and Verticillium dahliae) and in planta (Alternaria alternata) | [62] |
trnI/trnA | 5′psbA/3′psbA | PelB1, PelD2 | ~2.42 units mg−1 FW | Resistance against Erwinia soft rot | [63] |
trnI/trnA | 5′psbA/3′ | RC1011, PG12 | 17–38% TSP | Resistance to Erwinia soft rot and tobacco mosaic virus | [64] |
trnI/trnA | 5′psbA/3′psbA | Pta | 7.1–9.2% TSP | Broad-spectrum resistance against viral/bacterial/phloem-feeding insects | [51] |
trnI/trnA | 5′psbA/3′psbA | Bgl-1 | >160-fold enzyme | Resistance against whitefly and aphid | [65] |