Table 1.
Biotechnological interventions to increase disease resistance in cereals.
| Immunity Level of Intervention | Biotechnological Intervention | Gene | Species | Enhanced Resistance to | References |
|---|---|---|---|---|---|
| Pathogen sensing | Interspecies/interfamily transfer of known PRRs | AtEFR | Wheat | Pseudomonas syringae pv. oryzae | [79] |
| AtEFR | Rice | Xanthomonas oryzae pv. oryzae-derived elf18 | [80] | ||
| AtEFR | Rice | Acidovorax avenae subsp. avenae | [81] | ||
| OsXa21 | Rice | Xanthomonas oryzae pv. oryzae | [82] | ||
| TaRLK1 and TaRLK2 | Wheat | Blumeria graminis f. sp. tritici | [83] | ||
| HvLEMK1 | Barely, Wheat | Blumeria graminis f.sp. hordei; Blumeria graminis f. sp. tritici | [84] | ||
| HvLecRK-V | Wheat | Blumeria graminis f. sp. tritici | [85] | ||
| Production of chimeric receptor kinases and R genes | AtEFR-OsXa21 | Rice | Pseudomonas syringae pv. tomato; Agrobacterium tumefaciens; Xanthomonas oryzae pv. oryzae | [86,87] | |
| OsXa21-OsCEPiP | Rice | Magnaporthe oryzae | [88] | ||
| Effector detection | Deletion of effector binding sites | Os11N3/OsSWEET14 | Rice | Xanthomonas oryzae pv. oryzae | [89] |
| Addition of effector binding sites | OsXa27 | Rice | Xanthomonas oryzae pv. oryzae | [90] | |
| Immune signaling | Altered expression of signaling components | AtNPR1 | Rice | Broad-spectrum of pathogens | [91] |
| Altered expression of transcription factors | TaPIMP1 | Wheat | Bipolaris sorokiniana | [92] | |
| OsIPA1/OsSPL14 | Rice | Magnaporthe oryzae | [93] | ||
| R genes | Transfer of APR alleles | TaLr34 | Barely, Rice, Sorghum Maize, Durum wheat | Multiple biotrophic pathogens | [94,95,96,97,98] |
| TaLr67 | Barely | Multiple rusts and powdery mildew | [99] |