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DINIZ, A. R.; PEREIRA, M. G.; BALIEIRO, F. de C.; SILVA, E. V. da; SANTOS, F. M.; LISBOA, F. J. G.; OLIVEIRA, A. B. de; CRUZ, R. B. da. |
A cultura da seringueira (Hevea brasiliensis) pode acumular quantidades significativas de carbono, seja na biomassa ou no solo. No entanto, ainda se está longe de uma compreensão abrangente sobre o potencial de estoque de C entre os diferentes clones de seringueira, em razão de esses serem tipicamente formados para exibir outras características, como aumento de produtividade e maior tolerância às doenças. Assim, este estudo teve como objetivo abordar as diferenças entre plantios clonais de seringueira, buscando preencher a lacuna decorrente da seguinte indagação: A hipótese do estudo foi que os diferentes clones de seringueira, desenvolvidos para serem adaptados a distintas condições ambientais e biológicas, divergem em termos de estoque de C no solo e na... |
Tipo: Artigo de periódico |
Palavras-chave: Sequestro de carbono.; Matéria Orgânica.; Hevea Brasiliensis. |
Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1034269 |
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DINIZ, A. R.; SILVA, C. F. da; PEREIRA, M. G.; BALIEIRO, F. de C.; SILVA, E. V. da; SANTOS, F. M. dos. |
Our study aimed to evaluate the influence of rubber tree plantations (Clones IAN 873 and FX 3864) on microbial activity, total organic carbon (TOC), and soils chemical attributes, using as reference pasture and secondary forest, in Rio de Janeiro. The plantations areas showed pH; Mg2+, Ca2+, K+ levels; sum of bases; base saturation, basal respiration; metabolic quotient; and arylsulfatase and FDA activities in the soil similar to or greater than the values found in the forest. In contrast, showed lower P and TOC levels; carbon and nitrogen in the microbial biomass; and Beta-glucosidase activity than of forest and pasture. Higher acid phosphatase and laccase enzymes activities was observed in the forest and plantations than in the pasture. Thus, we verified... |
Tipo: Artigo de periódico |
Palavras-chave: Basal soil respiration; Solo; Qualidade; Soil quality; Acid phosphatase; Beta-glucosidase; Arylsulfatase. |
Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1136065 |
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MONTE, L. G.; CONCEIÇÃO, F. R.; COUTINHO, M. L.; SEIXAS, F. K.; SILVA, E. V. da; VASCONCELLOS, F. A.; CASTRO, L. A. S. de; HARTLEBEN, C. P.; DELLAGOSTIN, O. A.; ALEIXO, J. A. G.. |
Leptospirosis is an infectious disease caused by pathogenic spirochetes of the genus Leptospira that affects humans and a wide variety of animals. Recently the genomes of Leptospira interrogans, Leptospira borgpetersenii and Leptospira biflexa species were sequenced allowing the identification of new virulence factors involved in survival and pathogenesis of bacteria. LigA and LigB are surface-exposed bacterial adhesins whose expression is correlated with the virulence of Leptospira strains. In this study, we produced and characterized five monoclonal antibodies (MAbs) against a recombinant fragment of LigB (rLigBrep) with approximately 54 kDa that comprise the portions of LigA and LigB (domains 2?7). The 5 MAbs obtained were of the IgG1 (2) and IgG2b (3)... |
Tipo: Artigo de periódico |
Palavras-chave: Monoclonal; Leptospirose; Anticorpo Monoclonal.. |
Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/928502 |
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DINIZ, A. R.; GUARESCHI, R. F.; PEREIRA, M. G.; FERNANDES, D. A. C.; BALIEIRO, F. de C.; SILVA, E. V. da; PICCOLO, M. de C.. |
This study quantify the total organic carbon content, light fraction organic matter (LFOM), and soil organic matter fractions (from chemical and physical fractionations) in four different cultivation areas: 1 and 2) rubber tree clonal plantations (FX 3864 and IAN 873); 3) a pasture; and 4) a secondary forest. The research was carried out using soil samples from clonal plantations of eight-year-old rubber trees, located in the coastal plain (Tabuleiros Costeiros) of the state of Rio de Janeiro. The difference in the management of the rubber tree clone area promoted improvements in the soil quality, as it increased the carbon contents of the granulometric fractions, LFOM, and humic substances from the IAN 873 clone area. Both rubber tree areas evaluated... |
Tipo: Artigo de periódico |
Palavras-chave: Hevea Brasiliensis; Matéria Orgânica; Carbono; Fração do Solo; Organic matter; Carbon. |
Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1124086 |
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