Publications by authors named "Douglas Alfradique Monteiro"
Influences of plant organ, genotype, and cultivation site on the endophytic bacteriome of maize (Zea mays L.) in the semi-arid region of Pernambuco, Brazil.
Braz J Microbiol
March 2024
Article Synopsis
- Endophytic bacteria are essential for plant growth and adaptability, and understanding their composition in relation to plant variety and growing location is vital for microbiome management.
- The study focused on analyzing the endophytic bacteriome in roots and stems of four maize genotypes across two semi-arid regions in Pernambuco, Brazil, revealing that while root bacteria were mainly influenced by the cultivation site, plant genotype had minimal impact.
- Metabarcoding revealed important differences in bacterial community diversity based on plant organ and established a complex co-occurrence network, indicating that the primary genus, Leifsonia, plays varying ecological roles depending on its location within the plant.
Halophytes, plants capable of growing under saline conditions, are an important source of bacteria with biotechnological potential for plant growth under extreme conditions. In this study, we evaluated the halophyte Atriplex nummularia bacteriome assemblage from three different salinized sites in northeastern Brazil with different edaphoclimatic characteristics, understanding the participation of the plant in the assembly of its microbiome. We sampled 30 specimens, from which the leaves, roots, and rhizospheric soil were subjected to 16S rRNA gene sequencing, bringing forth patterns of alpha and beta diversity, taxonomical composition, co-occurrence network, and the core microbiome of each compartment.
View Article and Find Full Text PDFAgriculture, forestry and other land uses are currently the second highest source of anthropogenic greenhouse gases (GHGs) emissions. In soil, these gases derive from microbial activity, during carbon (C) and nitrogen (N) cycling. To investigate how Eucalyptus land use and growth period impact the microbial community, GHG fluxes and inorganic N levels, and if there is a link among these variables, we monitored three adjacent areas for 9 months: a recently planted Eucalyptus area, fully developed Eucalyptus forest (final of rotation) and native forest.
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