scholarly journals Characterization of Aspergillus section Nigri isolates from leaf litter and soil in the Atlantic Forest of Brazil

2015 ◽  
Vol 9 (5) ◽  
pp. 301-306 ◽  
Author(s):  
Faria Maia Tatiana ◽  
Luiz Simoes Araujo Jean ◽  
Antonio Inacio Carlos ◽  
Elias Fraga Marcelo
Keyword(s):  
Leaf Litter ◽  
Atlantic Forest ◽  
Aspergillus Section Nigri ◽  
Aspergillus Section

scholarly journals Bioprospecting Aspergillus section Nigri in Atlantic Forest soil and plant litter

2017 ◽  
Vol 84 (0) ◽  
Author(s):  
Tatiana Faria Maia ◽  
Marcelo Elias Fraga
Keyword(s):  
Atlantic Forest ◽  
Enzyme Production ◽  
Hydrolytic Enzyme ◽  
Soluble Starch ◽  
Plant Litter ◽  
Citrus Pectin ◽  
Phytase Production ◽  
Aspergillus Section Nigri ◽  
Significant Potential ◽  
Aspergillus Section

ABSTRACT: The use of fungi as a source of enzymes has become widespread in various industrial and commercial areas, and Aspergillus section Nigri has significant potential for producing enzymes. The aim of this study was to isolate Aspergillus section Nigri from plant litter and soil from the Atlantic Forest biome and evaluate it with regards to hydrolytic enzyme production. The trials for producing the enzymes were carried out in Petri dishes, using different culture mediums adapted for microbial growth and with the respective substrates for inducing enzyme production - cellulase (carboxymethyl cellulose), protease (skimmed milk), amylase (soluble starch), pectinase (citrus pectin), and phytase (Pikovskaya medium). Forty-two fungi were isolated, 16.7% derived from the plant litter layer and 83.3% derived from soil at a depth of 0 to 5 cm and 5 to 10 cm. All of the isolated lineages presented amylase, protease, and phytase production, with 90.4% producing cellulase and no lineage producing pectinase. From the results, the significant potential for Atlantic Forest fungi as hydrolytic enzyme producers could be perceived. The enzymatic activity evaluations presented a satisfactory result when compared with the scientific literature.

scholarly journals Characterization of ciliate diversity in bromeliad tank waters from the Brazilian Atlantic Forest

2017 ◽  
Vol 61 ◽  
pp. 359-365 ◽  
Author(s):  
Taiz L.L. Simão ◽  
Adriana Giongo Borges ◽  
Kelsey A. Gano ◽  
Austin G. Davis-Richardson ◽  
Christopher T. Brown ◽  
...  
Keyword(s):  
Atlantic Forest ◽  
Brazilian Atlantic Forest

scholarly journals Species Identification and Antifungal Susceptibility Patterns of Species Belonging to Aspergillus Section Nigri

2009 ◽  
Vol 53 (10) ◽  
pp. 4514-4517 ◽  
Author(s):  
Laura Alcazar-Fuoli ◽  
Emilia Mellado ◽  
Ana Alastruey-Izquierdo ◽  
Manuel Cuenca-Estrella ◽  
Juan L. Rodriguez-Tudela
Keyword(s):  
Phylogenetic Analysis ◽  
Species Identification ◽  
Antifungal Susceptibility ◽  
Morphological Features ◽  
Correct Classification ◽  
Paradoxical Effect ◽  
Aspergillus Section Nigri ◽  
Susceptibility Patterns ◽  
Aspergillus Section

ABSTRACT A phylogenetic analysis was performed for 34 Aspergillus strains belonging to section Nigri. Molecular methods allowed for the correct classification into three different clades (A. niger, A. tubingensis, and A. foetidus). Correlation with in vitro itraconazole susceptibility distinguished the following three profiles: susceptible, resistant, and showing a paradoxical effect. A number of different species whose morphological features resemble those of A. niger showed unusual MICs to itraconazole that have never been described for the Aspergillus genus.

Effect of vertebrate exclusion on leaf litter decomposition in the coastal Atlantic forest of southeast Brazil

2021 ◽  
Author(s):  
Gabriela Garcia Medeiros ◽  
Juliana Antonio ◽  
Michelle Harrison ◽  
Luciana Della Coletta ◽  
Amin Soltangheisi ◽  
...  
Keyword(s):  
Leaf Litter ◽  
Litter Decomposition ◽  
Atlantic Forest ◽  
Leaf Litter Decomposition ◽  
Southeast Brazil

scholarly journals Spatial continuity of soil attributes in an Atlantic Forest remnant in the Mantiqueira Range, MG

2013 ◽  
Vol 37 (1) ◽  
pp. 68-77 ◽  
Author(s):  
Marcela de Castro Nunes Santos ◽  
José Marcio de Mello ◽  
Carlos Rogério de Mello ◽  
Léo Fernandes Ávila
Keyword(s):  
Atlantic Forest ◽  
Spatial Dependence ◽  
Soil Bulk Density ◽  
Exchange Capacity ◽  
Dependence Structure ◽  
Spatial Continuity ◽  
Soil Attributes ◽  
Forest Remnant ◽  
Spatial Dependence Structure

The spatial characterization of soil attributes is fundamental for the understanding of forest ecosystems. The objective of this work was to develop a geostatistical study of chemical and physical soil attributes at three depths (D1 - 0-20 cm; D2 - 20-50 cm; D3 - 50-100 cm), in an Experimental Hydrographic Micro-catchment entirely covered by Atlantic Forest, in the Mantiqueira Range region, Minas Gerais. All the considered variables presented spatial dependence structure in the three depths, and the largest degrees of spatial dependence were observed for pH in the three depths, soil cation exchange capacity potential in D3, soil organic matter in D1 and D3 and clay and soil bulk density in D2. The method most used for the adjustments of semi-variogram models was the Maximum Likelihood and the most selected model was the Exponential. Furthermore, the ordinary kriging maps allowed good visualization of the spatial distribution of the variables.

Characterization of soil fauna under the influence of mercury atmospheric deposition in Atlantic Forest, Rio de Janeiro, Brazil

2015 ◽  
Vol 32 ◽  
pp. 217-227 ◽  
Author(s):  
Andressa Cristhy Buch ◽  
Maria Elizabeth Fernandes Correia ◽  
Daniel Cabral Teixeira ◽  
Emmanoel Vieira Silva-Filho
Keyword(s):  
Atmospheric Deposition ◽  
Atlantic Forest ◽  
Rio De Janeiro ◽  
Soil Fauna
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