TABLE 1.
The soil samples and number of isolated and sequenced PSB strains from the fruit tree rhizosphere soil.
| Soil No. | Region | Code | Latitude | Longitude | Altitude/m | County, province | Tree species | Tree age/year | No. of isolated PSB | No. of sequenced PSB | PSB species by 16S rDNA | |||
| Ac. | Pa. | Ps. | Others | |||||||||||
| 1 | KRD | EJ1 | 30°18′49″N | 109°29′07″E | 400 | Enshi, Hubei | Citrus reticulata | 3 | 39 | 2 | 0 | 0 | 2 | 0 |
| 2 | GJ1 | 28°01′44″N | 108°28′52″E | 593 | Yinjiang, Guizhou | Citrus reticulata | 2 | 36 | 3 | 0 | 0 | 2 | 1 | |
| 3 | GJ2 | 28°01′46″N | 108°28′55″E | 588 | Yinjiang, Guizhou | Citrus reticulata | 2 | 43 | 11 | 6 | 0 | 0 | 5 | |
| 4 | GJ3 | 28°01′49″N | 108°28′54″E | 587 | Yinjiang, Guizhou | Citrus reticulata | 5 | 104 | 17 | 1 | 0 | 13 | 3 | |
| 5 | GY1 | 28°01′25″N | 108°29′07″E | 517 | Yinjiang, Guizhou | Citrus maxima (Burm) Merr. | 10 | 68 | 2 | 0 | 0 | 2 | 0 | |
| 6 | HT1 | 28°27′40″N | 109°29′52″E | 550 | Huayuan, Hunan | Amygdalus persica L. | 3 | 19 | 2 | 0 | 0 | 2 | 0 | |
| 7 | HZ1 | 28°26′33″N | 109°28′49″E | 550 | Huayuan, Hunan | Ziziphus jujuba Mill. | 3 | 17 | 4 | 0 | 0 | 4 | 0 | |
| 8 | NY1 | 28°12′38″N | 112°35′42″E | 388 | Ningxiang, Hunan | Citrus aurantium L. | 10 | 22 | 2 | 0 | 0 | 2 | 0 | |
| 9 | NY2 | 28°12′38″N | 112°35′42″E | 388 | Ningxiang, Hunan | Citrus aurantium L. | 10 | 17 | 1 | 0 | 0 | 0 | 1 | |
| 10 | WG1 | 30°46′16″N | 114°12′24″E | 21 | Wuhan, Hubei | Osmanthus fragrans (Thunb.) Lour. | 5 | 56 | 5 | 0 | 0 | 5 | 0 | |
| 11 | XB1 | 26°32′08″N | 110°45′41″E | 365 | Xinning, Hubei | Castanea mollissima BL. | 5 | 30 | 5 | 0 | 4 | 0 | 1 | |
| 12 | XQ1 | 26°39′46″N | 110°57′52″E | 427 | Xinning, Huibei | Citrus sinensis L. Osbeck | 10 | 59 | 2 | 0 | 0 | 1 | 1 | |
| 13 | XQ2 | 26°31′46″N | 110°45′03″E | 353 | Xinning, Hubei | Citrus sinensis L. Osbeck | 10 | 16 | 5 | 0 | 0 | 1 | 4 | |
| 14 | YH1 | 29°00′33″N | 108°57′31″E | 333 | Youyang, Chongqing | Zanthoxylum schinifolium Sieb. et Zucc | 5 | 27 | 0 | 0 | 0 | 0 | 0 | |
| 15 | YY1 | 28°56′38″N | 109°56′38″E | 330 | Youyang, Chongqing | Citrus maxima (Burm.) Merr. | 1 | 17 | 6 | 1 | 0 | 0 | 5 | |
| 16 | NKRD | CX1 | 43°54′13″N | 125°20′31″E | 187 | Changchun, Jilin | Armeniaca vulgaris Lam. | 10 | 59 | 11 | 0 | 0 | 11 | 0 |
| 17 | CX2 | 43°54′13″N | 125°20′37″E | 211 | Changchun, Jilin | Armeniaca vulgaris Lam. | 20 | 107 | 8 | 0 | 0 | 8 | 0 | |
| 18 | CX3 | 43°49′13″N | 125°16′41″E | 251 | Changchun, Jilin | Armeniaca vulgaris Lam. | 10 | 69 | 3 | 0 | 0 | 2 | 1 | |
| Total | / | / | / | / | / | / | / | 805 | 89 | 8 | 4 | 55 | 22 | |
KRD, karst rocky desertification; NKRD, non-karst rocky desertification; Ac, Acinetobacter; Pa, Paraburkholderia; Ps, Pseudomonas.