In the original article, there was a mistake in Table 1 as published. The correct GenBank accession number of strains; WP 4-3-1, WP 4-4-2, WP 4-4-6, WP 4-5-3, and WP42 are KU500895, KU500894, KU500891, KU500892, and KF597276, respectively. The correct identity of strains WP 4-4-2 and WP 4-5-3 is Rahnella sp. The accession number of strains; WP 4-3-1, WP 4-4-2, WP 4-4-6, WP 4-5-3, and WP42 were misprinted. The identity of strains WP 4-4-2 and WP 4-5-3 was listed as Rahnella aquatilis. The corrected Table 1 appears below.
Table 1.
Endophyte strains used in this experiment.
| Strain | Identity | Origin | Appearance | PGPAa | GenBank accession no. | rRNA sequence size, partial (bp) |
|---|---|---|---|---|---|---|
| WP 4-2-2 | Burkholderia sp. | Poplar root | Buff | IAA, NA | KU495920 | 903 |
| WP 4-3-1 | Rhodotorula graminis | Poplar stem | Pink | CLP, IAA | KU500895 | 554 |
| WP 4-3-2 | Burkholderia sp. | Poplar stem | Buff, mucoid | Sd, NA | KU500893 | 947 |
| WP 4-3-3 | Curtobacterium sp. | Poplar stem | Bright yellow | IAA | KU550576 | 962 |
| WP 4-4-2 | Rahnella sp. | Poplar stem | Buff, mucoid | IAA, Sd | KU500894 | 966 |
| WP 4-4-6 | Pseudomonas sp. | Poplar stem | Pale yellow | IAA, NA | KU500891 | 1,032 |
| WP 4-5-3 | Rahnella sp. | Poplar stem | Buff, mucoid | Sd, IAA | KU500892 | 1,076 |
| WP 4-10-4 | Curtobacterium sp. | Poplar leaf | Bright yellow | NA, IAA | KU550577 | 859 |
| WP40 | Burkholderia sp. | Poplar stem | Buff | ofn, orb, hcn, Sd, NA, IAA | KF597274 | 1,494 |
| WP41 | Burkholderia sp. | Poplar stem | Buff | ofn, orb, Sd, NA, IAA | KF597275 | 1,494 |
| WP42 | Burkholderia sp. | Poplar stem | Buff | ofn, orb, Sd, hcn, NA, IAA | KF597276 | 1,494 |
| WW7 | Curtobacterium sp. | Willow stem | Pale yellow | IAA, Sd, NA | KU523564 | 926 |
| PD1 | Pseudomonas putida | Poplar stem | Buff | IAA | KF443801 | 1,496 |
| Pf 2-79 | P. fluorescens | Soil | Bright yellow | CLP, phz | ||
| Pf Q8r1-96 | P. brassicacearum | Soil | Buff | CLP, dapg, plt, prn |
Plant growth promoting activities: cyclic lipopetide (CLP) determined using the drop collapse assay; indole acetic acid (IAA) determined on YEM medium plus L-trpytophan using Salkowski reagent; gene clusters for the antifungal metabolites occidiofungin (ofn), ornibactin (orb), hydrogen cyanide (hcn), diacetylphloroglucinol (dapg), phenazine (phz), pyoluteorin (plt) and pyrrolnitrin (prn) loci determined using PCR; siderophore (Sd) determined by orange halo on CAS medium, nitrogenase activity (NA) determined by acetylene reduction assay.
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way.
The original article has been updated.
Conflict of interest statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.