Project description:Out of forty rhizosphere soils collected from semi arid tropical regions of Andhra Pradesh, India, 30 gave positive enrichments for heliobacteria. These bacteria were recognized by the presence of bacteriochlorophyll-g together with endospores in the initial enrichments. Using group specific primers of 16S rRNA gene, ten monoheliobacterial cultures were sequenced. They were finally grouped into 3 clusters based on the 16S rRNA gene similarity. Based on a few phenotypic characters, in addition to genetic characterization, we identified them as potential novel species and the 16S rRNA gene sequences were deposited with EMBL.

| S-EPMC3396396 | biostudies-other

Arid lands soils

Project description:The dual use of solar power plants as biocrust nurseries for large-scale arid soil restoration

| PRJNA898826 | ENA

Microbial diversity in the arid and semi-arid soils of Botswana.

Project description:To date, little research has been conducted on the landscape-scale distribution of soil microbial communities and the factors driving their community structures in the drylands of Africa. We investigated the influence of landscape-scale variables on microbial community structure and diversity across different ecological zones in Botswana. We used amplicon sequencing of bacterial 16S rRNA gene and fungal internal transcribed spacers (ITS) and a suite of environmental parameters to determine drivers of microbial community structure. Bacterial communities were dominated by Actinomycetota (21.1%), Pseudomonadota (15.9%), and Acidobacteriota (10.9%). The dominant fungal communities were Ascomycota (57.3%) and Basidiomycota (7.5%). Soil pH, mean annual precipitation, total organic carbon, and soil ions (calcium and magnesium) were the major predictors of microbial community diversity and structure. The co-occurrence patterns of bacterial and fungal communities were influenced by soil pH, with network-specific fungi-bacteria interactions observed. Potential keystone taxa were identified for communities in the different networks. Most of these interactions were between microbial families potentially involved in carbon cycling, suggesting functional redundancy in these soils. Our findings highlight the significance of soil pH in determining the landscape-scale structure of microbial communities in Botswana's dryland soils.

| S-EPMC11558117 | biostudies-literature

Columba argentina

Project description:Columba argentina

| PRJNA852846 | ENA

Testing microbial inoculation benefits for semi-arid Australian plants in mine-site substrates

Project description:Testing microbial inoculation benefits on semi-arid Australian plant germination, survival and growth in mine-site substrates.

| PRJEB46930 | ENA

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