Table 3.
Physiological characteristics.
| Phylum or Class (Order) | Phylotype | Number of Isolates a | Physiological Characteristics b | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Protease | Polymer | Xanthine | Hypoxanthine | Phosphate Solubilization | Growth Hormone d | Nitrogen Fixation e | |||
| Actinobacteria | Frondihabitans peucedani | 3 | – | – | – | – | – | 3 | 3 |
| Galbitalea sp. | 2 | – | 1 | – | – | – | 2 | – | |
| Lacisediminihabitans sp. (A) | 1 | – | – | – | – | – | 1 | 1 | |
| Lacisediminihabitans sp. (B) | 1 | – | – | – | – | – | 1 | – | |
| Mycobacterium sp. (A) | 2 | – | 2 | – | – | – | – | 1 | |
| Mycobacterium sp. (B) | 9 | – | 5 | – | – | – | – | 8 | |
| Subtercola boreus | 4 | – | – | – | 1 | 1 | 1 | 1 | |
| Subtercola sp. | 2 | – | – | – | – | – | – | – | |
| Rhodococcus sp. | 2 | – | 1 | – | – | – | 2 | – | |
| Streptacidiphilus carbonis | 1 | 1 | – | 1 | 1 | – | – | – | |
| Alphaproteobacteria | Lichenibacterium sp. | 4 | – | – | – | – | – | 1 | – |
| (Rhizobiales) | Lichenihabitans psoromatis | 6 | – | – | – | – | 2 | 1 | – |
| Methylobacterium goesingense | 2 | – | – | – | – | – | 2 | – | |
| Methylorosula sp. | 5 | – | – | – | – | – | – | 2 | |
| Alphaproteobacteria | Lichenicola cladoniae | 3 | – | – | – | – | 2 | 3 | – |
| (Rhodospirillales) | Lichenicola sp. | 4 | – | – | – | – | 2 | 1 | – |
| Alphaproteobacteria | Polymorphobacter sp. (A) | 2 | – | – | – | – | – | – | – |
| (Sphingomonadales) | Polymorphobacter sp. (B) | 2 | – | – | – | – | – | 2 | – |
| Polymorphobacter sp. (C) | 1 | – | – | – | – | – | 1 | – | |
| Sphingomonas aerolata | 6 | – | – | – | 1 | – | 6 | 3 | |
| Sphingomonas faeni | 1 | – | – | – | – | – | 1 | – | |
| Sphingomonas glacialis | 10 | 2 | – | – | 1 | – | 10 | 1 | |
| Sphingomonas sp. (A) | 2 | – | – | – | 1 | – | 2 | – | |
| Sphingomonas sp. (B) | 5 | – | – | – | – | – | 3 | – | |
| Betaproteobacteria | Caballeronia mineralivorans | 13 | – | 6 c | 13 | 7 | 10 | 4 | 13 |
| Massilia sp. (A) | 4 | 1 | – | – | – | 2 | 4 | – | |
| Massilia sp. (B) | 1 | – | – | – | – | – | 1 | – | |
| Gammaproteobacteria | Rhodanobacter sp. | 1 | – | – | – | – | 1 | 1 | – |
| Pseudomonas sp. (A) | 1 | – | – | – | – | 1 | 1 | – | |
| Pseudomonas sp. (B) | 10 | – | – | – | – | 9 | 10 | – | |
| Bacteroidetes | Mucilaginibacter rigui | 2 | 2 | – | – | – | – | 2 | – |
| Pedobacter sp. (A) | 1 | – | – | – | – | – | 1 | 1 | |
| Pedobacter sp. (B) | 3 | 3 | 1 | – | – | – | – | 3 | |
| Deinococcus-Thermus | Deinococcus sp. | 1 | – | – | – | – | – | – | – |
a Numbers indicate the total number of cultured isolates of each phylotype. b Numbers indicate the number of isolates showing the positive activity. c Number indicates positive isolates for the hydrolysis of Tween 60 except that of Caballeronia mineralivorans, which indicates the result of hydrolysis of Tween 20. d Growth hormone indicates the production of phytohormone indole-3-acetic acid. e Nitrogen fixation was determined by growing on nitrogen-free medium. Isolates growing with scores (≥3) on the nitrogen-fixing bacteria (Nfb) solid medium were denoted as nitrogen-fixing bacteria.