We used 16S rRNA sequencing to assess the archaeal communities across a gradient of Cerrado. The archaeal communities differed across the gradient. Crenarcheota was the most abundant phyla, with Nitrosphaerales and NRPJ as the predominant classes. Euryachaeota was also found across the Cerrado gradient, including the classes Metanocellales and Methanomassiliicoccaceae.
Keywords:
Microbial ecology; Soil microbiology; 16S rRNA; Tropical soils
| Campo graminoide | Cerrado stricto sensu | Cerradao | Floresta decidual | |
|---|---|---|---|---|
| Plant richnesse e Species/100 m2. | 4.7 | 11 | 17 | 18 |
| Plant diversityf f H/100 m2. | 0.2 | 0.85 | 1.10 | 1.11 |
| Plant densityg g Individual/100 m2. | 4.7 | 27.1 | 35.0 | 51.8 |
| Vegetationh h Species of plants present. | a a Andropogon fastigiatus; Aristida longifolia; Eragrostis maypurensis. | b b Andropogon fastigiatus; Aristida longifolia; Terminalia fagifolia; Magonia pubescens; Hymenaea courbaril; Plathymenia reticulata; Qualea grandiflora; Combretum mellifluum; Lippia origanoides; Anacardium occidentale; Simarouba versicolor; Vatairea macrocarpa. | c c Aspidosperma discolor; Parkia platycephala; Terminalia fagifolia; Piptadenia moniliformis; Plathymenia reticulata; Qualea parviflora; Anacardium occidentale; Copaifera coriacea; Thiloa glaucocarpa; Casearia grandiflora. | d d Aspidosperma multiflorum; Aspidosperma subincanum; Campomanesia aromática; Casearia lasiophylla; Casearia ulmifolia; Copaifera coriacea; Ephedranthus pisocarpus; Piptadenia moniliformis; Pterocarpus violaceus; Thiloa galucocarpa. |
| Site | Moisture (%) | Temperature (ºC) | TOC (g kg-1) | pH | P (mg kg-1) | K (cmolc kg-1) | CEC (cmolc kg-1) |
|---|---|---|---|---|---|---|---|
| Campo graminoide | 7.3c | 32a | 4.3c | 4.5c | 3.9c | 1.4b | 2.28b |
| Cerrado stricto sensu | 10.5b | 30b | 8.3b | 4.3b | 3.9b | 1.8b | 2.31b |
| Cerradao | 11.9b | 30b | 9.1b | 4.6b | 4.5b | 1.6b | 2.35b |
| Floresta decidual | 31.8a | 28c | 15.2a | 4.9a | 5.3a | 3.8a | 4.91a |
