De genomas a comunidades: descrevendo alterações na comunidade bacteriana envolvida na oxidação do metano em solos da Amazônia

Influence of soil management for soybean production under microbial diversity in amazon soils

“…Soil microbial communities are dynamic and sensitive to biotic and abiotic changes, but it is still possible to evidence the presence of different most relevant taxonomic groups in each site; in the forest, the dominant phyla were Proteobacteria, followed by Actinobacteria, which are usually found in these tropical regions (Sugiyama et al, 2014;Lin et al, 2019), in the case of Frontiers in Environmental Science frontiersin.org pasture and culture sites with transgenic soybean, the increased abundance of the Actinobacteria phylum, might be involved with changes in soil pH (Navarrete et al, 2015a;Navarrete et al, 2015b;Durrer et al, 2021), in pastures, in addition to the microorganisms mentioned, the Firmicutes phylum is frequently reported in this type of grass places (Lladó et al, 2018;Santos, 2019).…”

“…On the other hand, the different practices that are carried out for land use in intensive agriculture contribute to the alteration and reduction of the reserve of organic matter and the diversity of the communities of organisms that reside in the soil (Carvalho et al, 2016;Santos, 2019;García et al, 2020), At the site where the samples were collected, the forest was initially removed, and limestone, chemical fertilizers, and pesticides were applied for the cultivation of transgenic soybeans, thus, the long-term application of chemical fertilizers alters the chemical characteristics and reduces the availability of some nutrients (Gupta et al, 2022). As a result, the presence of these compounds in cultivated soil decreases microbial activity, in contrast to what happens in sites with high vegetation cover (Bevivino et al, 2014;Kim et al, 2020), which would explain the greater abundance and diversity of microorganisms in the forest compared to pasture and crop soils, a decrease and displacement of bacterial communities were evidenced and these microorganisms pose adaptation mechanisms against disturbances (Liu et al, 2013;Sun and Badgley, 2019;Moroenyane et al, 2021).…”