TABLE 1.
Bacterial strains used in this study.
| Strain | Characteristics | References |
| E. coli DH5α | F– endA1 glnV44 th-1 recA1 relA1 gyrA96 deoR nupG ϕ80dlacZΔM15 Δ(lacZYA-argF)U169, hsdR17(rK– mK+), λ | Thermo Fisher Scientific |
| E. coli S17.1 | recA thi pro hdsR4 (rK– mK+) (RP4-2T::M-Km::Tn7) Tpr SmR λpir | Simon et al., 1983 |
| E. coli S17.1 pDZ-119 pQE-CdgA | Derivative strain of E. coli S17.1 harboring the pLIL-2 vector and the c-di-GMP biosensor pDZ-119 | This study |
| E. coli S17.1 pDZ-119 pGEX-CdgC | Derivative strain of E. coli S17.1 harboring the pGEX-cdgC vector and the c-di-GMP biosensor pDZ-119 | This study |
| E. coli S17.1 pDZ-119 pGEX | Derivative strain of E. coli S17.1 harboring the pGEX-4T-1 vector and the c-di-GMP biosensor pDZ-119 | This study |
| E. coli S17.1 pDZ-119 | Derivative strain of E. coli S17.1 harboring the c-di-GMP biosensor pDZ-119 | This study |
| Azospirillum baldaniorum Sp245 | Wild-type strain isolated from wheat roots | Baldani et al., 1987 |
| A. baldaniorum 59C | Derivative strain ΔcdgC of A. baldaniorum | This study |
| A. baldaniorum C21 | Derivative strain from A. baldaniorum 59C harboring the plasmid pAZBR-cdgC, GmR | This study |
| A. baldaniorum C87 | Derivative strain from A. baldaniorum 59C harboring the empty plasmid pAZBRT7, GmR | This study |
| A. baldaniorum 3A13 | Derivative strain from A. baldaniorum 59C harboring the plasmid pJB-cdgC, KmR | This study |
| A. baldaniorum 3D46 | Derivative strain from A. baldaniorum 59C harboring the empty plasmid pJB3Tc20 | This study |
| A. baldaniorum -GFP | Wild-type strain harboring the pMP2444 vector which contains the eGFP gene, GmR | This study |
| A. baldaniorum 59C-GFP | Derivative strain from A. baldaniorum 59C harboring the pMP2444 vector which contains the eGFP gene, GmR | This study |
| A. baldaniorum 2A65 | Derivative strain from A. baldaniorum 3A13 harboring the pMP2444 vector which contains the eGFP gene, GmR | This study |
| A. baldaniorum 2D8 | Derivative strain from A. baldaniorum 3D46 harboring the pMP2444 vector which contains the eGFP gene, GmR | This study |
| A. baldaniorum 2449 | Derivative strain from A. baldaniorum harboring the pMP2449-5 vector which contains the mCherry gene, GmR | Ramirez-Mata et al., 2018 |
| A. baldaniorum 2450 | Derivative strain from A. baldaniorum 59C harboring the pMP2450 vector which contains the eGFP, KmR | This study |