TABLE 3.
Occurrence of phyla in the root endosphere of T. aestivum, as documented by culture-independent and culture-dependent methods.
| Phyla | Occurrence (%)a |
Number (and listb) of T. aestivum genotypes | Number of countries | References | ||
| Min | Max | Mean | ||||
| Culture-independent methods | ||||||
| Bacteria | ||||||
| Proteobacteria | 16.1 (Bawburgh, UK; a) | 51.1 (Bawburgh, UK; a) | 33.6 | 1 (a) | 1 | Tkacz et al., 2020; Prudence et al., 2021 |
| Acidobacteria | 1.2 (Bawburgh, UK; a) | 12.4 (Bawburgh, UK; a) | 6.8 | 1 (a) | 1 | Tkacz et al., 2020; Prudence et al., 2021 |
| Actinobacteria | 14.9 (Bawburgh, UK; a) | 60.1 (Bawburgh, UK; a) | 37.5 | 1 (a) | 1 | Tkacz et al., 2020; Prudence et al., 2021 |
| Bacteroidetes | 5.1 (Bawburgh, UK; a) | 11.1 (Bawburgh, UK; a) | 8.1 | 1 (a) | 1 | Tkacz et al., 2020; Prudence et al., 2021 |
| Chloroflexi | 1.0 (Bawburgh, UK; a) | 5.2 (Bawburgh, UK; a) | 3.1 | 1 (a) | 1 | Tkacz et al., 2020; Prudence et al., 2021 |
| Cyanobacteria | 4.3 (Bawburgh, UK; a) | 4.3 (Bawburgh, UK; a) | 2.2 | 1 (a) | 1 | Tkacz et al., 2020 |
| Firmicutes | 3.5 (Bawburgh, UK; a) | 3.5 (Bawburgh, UK; a) | 1.6 | 1 (a) | 1 | Prudence et al., 2021 |
| Verrucomicrobia | 7.17 (Bawburgh, UK; a) | 7.17 (Bawburgh, UK; a) | 3.6 | 1 (a) | 1 | Tkacz et al., 2020 |
| Other taxa | 7.0 (Bawburgh, UK; a) | 7.0 (Bawburgh, UK; a) | 3.5 | 1 (a) | 1 | Prudence et al., 2021 |
| Archaea | ||||||
| Euryarchaeota | 28.0 (Bawburgh, UK; a) | 28.0 (Bawburgh, UK; a) | 28.0 | 1 (a) | 1 | Prudence et al., 2021 |
| Thaumarchaeota | 62.0 (Bawburgh, UK; a) | 62.0 (Bawburgh, UK; a) | 62.0 | 1 (a) | 1 | Prudence et al., 2021 |
| Other taxa | 7.9 (Bawburgh, UK; a) | 7.9 (Bawburgh, UK; a) | 7.9 | 1 (a) | 1 | Prudence et al., 2021 |
| Unidentified taxa | 2.1 (Bawburgh, UK; a) | 2.1 (Bawburgh, UK; a) | 2.1 | 1 (a) | 1 | Prudence et al., 2021 |
| Fungi | ||||||
| Ascomycota | 66.0 (Kirksville, MO; b) | 99.3 (Northern Germany; NS) | 82.7 | 1 (b, NS) | 1 | Bokati et al., 2016 |
| Basidiomycota | 0.7 (Northern Germany; NS) | 0.7 (Northern Germany; NS) | 0.7 | 1 (NS) | 1 | Özkurt et al., 2020 |
| Other taxa | 34.0 (Kirksville, MO; b) | 34.0 (Kirksville, MO; b) | 17.0 | 1 (b) | 1 | Bokati et al., 2016 |
| Culture-dependent methods | ||||||
| Bacteria | ||||||
| Proteobacteria | 17.8 (Saskatoon, Canada; c) | 24.3 (Saskatoon, Canada; e) | 21.0 | 3 (c, d, e) | 1 | Germida and Siciliano, 2001 |
| Actinobacteria | 4.7 (Saskatoon, Canada; c) | 11.8 (Saskatoon, Canada; e) | 8.0 | 3 (c, d, e) | 1 | Germida and Siciliano, 2001 |
| Bacteroidetes | 1.0 (Saskatoon, Canada; d) | 4.1 (Saskatoon, Canada; c) | 2.5 | 3 (c, d, e) | 1 | Germida and Siciliano, 2001 |
| Firmicutes | 0.8 (Saskatoon, Canada; e) | 1.6 (Saskatoon, Canada; c) | 1.1 | 3 (c, d, e) | 1 | Germida and Siciliano, 2001 |
| Unidentified taxa | 59.0 (Saskatoon, Canada; e) | 73.6 (Saskatoon, Canada; c) | 67.3 | 3 (c, d, e) | 1 | Germida and Siciliano, 2001 |
| Fungi | ||||||
| Ascomycota | 75.0 (Kirksville, MO; b) | 75.0 (Kirksville, MO; b) | 75.0 | 1 (b) | 1 | Bokati et al., 2016 |
| Unidentified taxa | 15.0 (Kirksville, MO; b) | 15.0 (Kirsville, MO; b) | 15.0 | 1 (b) | 1 | Bokati et al., 2016 |
Min and Max correspond to minimum and maximum occurrences observed for each phylum in the specified references, after combining data from all replicate plants of one genotype (indicated between parentheses), at one growth stage, for one treatment in one soil of one geographic location (indicated between parentheses). For each phylum, the mean is calculated from all the values obtained from the different geographic locations and T. aestivum genotypes.
aAbbrevations are used to designate Missouri (MO) and United Kingdom (UK).
bGenotypes were cultivars Paragon (a), GSTR 11562 (b), PI167549 (c), Red Fife (d), CDC Teal (e) or not specified (NS).