Population dynamics and extracellular enzymes activity of mesophilic and thermophilic bacteria isolated from semi-arid soil of Northeastern Brazil

The dynamics of mesophilic and thermophilic bacterial population was studied in the bulk soil and rhizosphere of the grass Aristida adscensionis L. in a caatinga of the semi-arid Brazilian Northeast. Mesophilic heterotrophic bacteria, sporeforming bacteria and actinomycetes were significantly more abundant than thermophiles, and their counts were 106 - 107 CFU g-1 dry soil, showing weak fluctuations over the one-year study period. Thermophiles were below 106 CFU g-1 dry soil and, in general, demonstrated stronger fluctuations over the studied period. Among them, thermophilic actinomycetes showed the greatest decline during the dry season. No significant differences in microbial number were observed between bulk and rhizosphere soil. Mesophilic bacteria were represented mainly by Gram positive, filamentous organisms (actinomycetes) and by Gram positive, endospore-forming, rod-shaped organisms. All isolates of thermophilic bacteria were Gram positive, endospore-forming rods. Most of mesophilic isolates produced amylases and proteases, and 38% of isolates produced all studied extracellular enzymes: amylases, proteases, cellulases and chitinases. Among thermophilic bacteria, all isolates showed proteolytic activity and 77% produced amylases, but no one produced cellulases or chitinases.

• Publication year

  2007

• Venue

  Brazilian Journal of Microbiology

• Publication date

  2007-03-01

• Fields of study

  Biology, Environmental Science

• Identifiers
  DOI 10.1590/S1517-83822007000100028
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• The Rhizosphere and Plant Growth

  2012cited by this paper
• Enrichment and Isolation

  2007influential reference
• A polyphasic taxonomic study of thermophilic bacilli from a wide geographical area

  2004cited by this paper
• The frequency and characteristics of highly thermophilic bacteria in cool soil environments.

  2002cited by this paper
• CONTROLS OF TEMPORAL VARIABILITY OF THE SOIL MICROBIAL BIOMASS: A GLOBAL-SCALE SYNTHESIS

  1998cited by this paper
• Microbial Diversity and Community Structure in Two Different Agricultural Soil Communities

  1998cited by this paper
• Importance of farming practice on the isolation frequency of Thermoactinomyces species

  1997cited by this paper
• Advances in soil microbial ecology and the biodiversity

  1997cited by this paper
• Effects of soil compaction on the microbial populations of melon and maize rhizoplane

  1997cited by this paper
• Molecular microbial diversity of an agricultural soil in Wisconsin

  1996cited by this paper
• Diversity of soil actinomycetes in yunnan, china

  1996cited by this paper
• Methods in Applied Soil Microbiology and Biochemistry

  1996cited by this paper
• A new solid medium for enumerating cellulose-utilizing bacteria in soil

  1995cited by this paper
• Ecosystem Consequences of Microbial Diversity and Community Structure

  1995cited by this paper
• Methods for general and molecular bacteriology

  1994cited by this paper
• Microbial biomass, metabolic activity and nutritional status determined from fatty acid patterns and poly-hydroxybutyrate in agriculturally-managed soils

  1994cited by this paper
• Isolation and Characterization of Actinomycete Antagonists of a Fungal Root Pathogen

  1993influential reference
• Determination of soil pH by use of a robotic station

  1993cited by this paper
• Microbial numbers and activity in dried and rewetted arable soil under integrated and conventional management

  1992cited by this paper
• Rhizosphere research - 85 years of progress and frustration

  1991cited by this paper
• Fast-Growing, Aerobic, Heterotrophic Bacteria from the Rhizosphere of Young Sugar Beet Plants

  1990cited by this paper
• Grouping of soil bacteria by analysis of colony formation on agar plates

  1989influential reference
• Microbial communities in soil

  1986cited by this paper
• Effects of nutrient concentration on the growth of soil bacteria

  1984cited by this paper
• Biotechnology of Thermophilic Bacteria — Growth, Products, and Application

  1983cited by this paper
• Use of Congo red-polysaccharide interactions in enumeration and characterization of cellulolytic bacteria from the bovine rumen

  1982cited by this paper
• Manual for the Identification of Medical Bacteria

  1966cited by this paper
• Chitin media for selective isolation and culture of actinomycetes

  1962cited by this paper
• MICROBIOLOGICAL STUDIES OF SOME SUBANTARCTIC SOILS

  1955cited by this paper

• Stress-resilient endospore-forming diazotrophs from red lateritic soils of India: functional profiling and first evidence of Priestia abyssalis and Bacillus gaemokensis as nitrogen-fixers with multifunctional PGPR traits

  2026cites this paper
• Increased survival of Parageobacillus thermoglucosidasius, a thermophilic soil bacterium, in a rhizosphere milieu

  2025cites this paper
• Microbial Cross-Feeding and its Effects on Cowpea (Vigna Unguiculata) Plant Growth Promotion

  2023cites this paper
• Finding optimal microorganisms to increase crop productivity and sustainability under drought – a structured reflection

  2023cites this paper
• Short-Term Exposure to Thermophilic Temperatures Facilitates CO Uptake by Thermophiles Maintained under Predominantly Mesophilic Conditions

  2022cites this paper
• Community level physiological profiling of microorganisms in the rhizosphere of transgenic plants – A review

  2021cites this paper
• DETECÇÃO DE ESTERASE E LIPASE PRODUZIDAS POR FUNGOS FILAMENTOSOS ISOLADOS DE SOLOS DA CAATINGA / DETECTION OF ESTERASE AND LIPASE PRODUCED BY FILAMENTOUS FUNGI ISOLATED OF CAATINGA SOIL

  2020cites this paper
• Spatial cross-correlation between physicochemical and microbiological variables at superficial soil with different levels of degradation

  2020cites this paper
• Diversidade bacteriana associada à biodegradação de resíduos sólidos urbanos

  2020cites this paper
• Free-living diazotrophs drive castor bean nitrogen input in tropical semiarid soils

  2019cites this paper
• Unique Microorganisms Inhabit Extreme Soils

  2019cites this paper
• Principais Grupos e Aplicações Biotecnológicas dos Fungos

  2019cites this paper
• EFEITO DE FATORES ABIÓTICOS SOBRE A ATIVIDADE ENZIMÁTICA DE ACTINOBACTÉRIAS DE REGIÃO DO SEMIÁRIDO BRASILEIRO

  2018cites this paper
• Diversity and enzymatic potentialities of Bacillus sp. strains isolated from a polluted freshwater ecosystem in Cuba

  2018cites this paper
• Diversity and enzymatic potentialities of Bacillus sp. strains isolated from a polluted freshwater ecosystem in Cuba

  2018cites this paper
• Development and improved selected markers to biosurfactant and bioemulsifier production by Rhizopus strains isolated from Caatinga soil

  2018cites this paper
• DIVERSIDADE CULTURAL DE CEPAS DE ACTINOBACTÉRIAS DO SEMIÁRIDO

  2018cites this paper
• Biochemical and molecular identification of newly isolated pigmented bacterium and improved production of biosurfactant

  2017cites this paper
• Xylanase-producing microflora in Eastern Ghats of Andhra Pradesh, India

  2017cites this paper
• The Brazilian Soil Microbiome

  2017cites this paper
• Seleção de amostras de Rhizopus spp. produtoras de biossurfactantes/bioemulsificantes e aplicação na remoção de poluentes hidrofóbicos

  2017cites this paper
• Caracterização do microbioma de solos semiáridos da Caatinga e seu potencial para a degradação de lignocelulose

  2017cites this paper
• Microbial Community Profile and Water Quality in a Protected Area of the Caatinga Biome

  2016cites this paper
• BACTÉRIAS SOLUBILIZADORAS DE FOSFATO EM SOLO RIZOSFÉRICO DA CAATINGA

  2016cites this paper
• Antimicrobial potential of actinobacteria isolated from the rhizosphere of the Caatinga biome plant Caesalpinia pyramidalis Tul.

  2016cites this paper
• PRODUÇÃO DE CELULASE E AMILASE POR ACTINOBACTÉRIAS DO SEMIÁRIDO BRASILEIRO

  2016influential citation
• Enzymatic activity of actinobacteria from semiarid

  2015cites this paper
• Generic diversity and a comparative account on plant growth promoting characteristics of actinomycetes in roots and rhizosphere of Saccharum officinarum

  2015cites this paper
• ENZYMATIC KINETICS OF CELLULASES ISOLATED FROM SOIL BACTE RIA OF DOON VALLEY , UTTARAKHAND

  2015cites this paper
• Expressão heteróloga de celulases por biblioteca metagenômica do solo da Caatinga

  2015cites this paper
• Enzymatic characterization of microbial isolates from lignocellulose waste composting: chronological evolution.

  2014cites this paper
• MEDICINAL PLANTS FROM BRAZILIAN CAATINGA: ANTIBIOFILM AND ANTIBACTERIAL ACTIVITIES AGAINST Pseudomonas aeruginosa

  2014cites this paper
• Microbial Activity and Culturable Bacterial Diversity in Sediments of the Great Rann of Kachchh, Western India

  2014cites this paper
• Interação de Bacillus sp. com a rizosfera de três espécies de plantas forrageiras = Interaction of rhizobacteria Bacillus sp. with pastures rhizosphere

  2013cites this paper
• 5 Tropical Soil Microbial Communities

  2013cites this paper
• Diversity and activity of aerobic thermophilic carbon monoxide-oxidizing bacteria on Kilauea Volcano, Hawaii

  2013cites this paper
• The effect of solid cattle manure on soil microbial activity and on plate count microorganisms in organic and conventional farming systems

  2013cites this paper
• Brazilian research on extremophiles in the context of astrobiology

  2012cites this paper
• The importance of solid cattle manure application on soil microorganisms in organic and conventional cultivation

  2012cites this paper
• Microbial Dynamics and Diversity of Bacillus thuringiensis in Textile Effluent Polluted and Non-polluted Rice Field Soils of Orissa, India

  2012cites this paper
• Cellulolytic bacteria from soils in harsh environments

  2012cites this paper
• Cellulolytic bacteria from soils in harsh environments

  2012cites this paper
• Soil organic carbon in the brazilian semi-arids tropics.

  2011cites this paper
• Soil Organic Carbon in the Brazilian Semi-arid Tropics

  2011cites this paper
• Spore-forming bacteria in soil cultivated with GM white poplars: Isolation and characterization

  2010cites this paper
• Evaluation of pasture soil productivity in the semi-arid zone of Brazil by microbial analyses

  2008cites this paper
• Population densities and genetic diversity of actinomycetes associated to the rhizosphere of Theobroma cacao

  2008cites this paper