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  <title>DSpace Coleção: Artigo em periódico indexado (CPAA)</title>
  <link rel="alternate" href="https://www.alice.cnptia.embrapa.br/alice/handle/item/97" />
  <subtitle>Artigo em periódico indexado (CPAA)</subtitle>
  <id>https://www.alice.cnptia.embrapa.br/alice/handle/item/97</id>
  <updated>2026-06-30T09:56:41Z</updated>
  <dc:date>2026-06-30T09:56:41Z</dc:date>
  <entry>
    <title>Geographical traceability of Manilkara huberi (Ducke) A. Chev. by chemical signature.</title>
    <link rel="alternate" href="https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187826" />
    <author>
      <name>SILVA, A. C. L. da</name>
    </author>
    <author>
      <name>LOPES, M. T. G.</name>
    </author>
    <author>
      <name>TOMAZ, J. S.</name>
    </author>
    <author>
      <name>VALENTE, M. S. F.</name>
    </author>
    <author>
      <name>BEZERRA, C. de S.</name>
    </author>
    <author>
      <name>CAPUCHO, H. L. V.</name>
    </author>
    <author>
      <name>MARQUES, R. L. S.</name>
    </author>
    <author>
      <name>LOPES, R.</name>
    </author>
    <author>
      <name>PEREIRA, A. M.</name>
    </author>
    <author>
      <name>FERREYRA RAMOS, S. L.</name>
    </author>
    <id>https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187826</id>
    <updated>2026-06-28T12:37:28Z</updated>
    <published>2026-01-01T00:00:00Z</published>
    <summary type="text">Título: Geographical traceability of Manilkara huberi (Ducke) A. Chev. by chemical signature.
Autoria: SILVA, A. C. L. da; LOPES, M. T. G.; TOMAZ, J. S.; VALENTE, M. S. F.; BEZERRA, C. de S.; CAPUCHO, H. L. V.; MARQUES, R. L. S.; LOPES, R.; PEREIRA, A. M.; FERREYRA RAMOS, S. L.
Conteúdo: This study evaluated the potential of Total Reflection X-ray Fluorescence (TXRF) as a geochemical traceability method for wood from Manilkara huberi (Ducke) A. Chev., a species of high commercial and ecological value widely exploited in the Legal Amazon. Wood samples were collected in eight locations in the states of Amazonas, Pará, Rondônia, and Roraima, representing different edaphic, geological, and climatic conditions in the context of Amazonian edaphic and geological variability. The multielemental analysis revealed significant variations in trace element and macronutrient concentrations (Fe, Mn, K, Ca, Sr, Rb), reflecting the specific geochemical signatures of each region. Multivariate analyses (PCA and NMDS) showed distinct groupings among the populations, confirming the discriminatory capacity of TXRF in the differentiation of geographical origins. Significant correlations between elements such as K × Rb and Cr × Fe demonstrated consistent patterns of coaccumulation and antagonism associated with local geochemistry. The results prove the efficiency of TXRF as a non-destructive, sensitive, and low-cost technique for origin authentication and forensic investigation of Amazonian wood, strengthening sustainable management policies and combating illegal exploitation. The proposed methodology is a scientific advance in forest traceability and biodiversity conservation, contributing to the transparency and legality of timber production chains in the Amazon.</summary>
    <dc:date>2026-01-01T00:00:00Z</dc:date>
  </entry>
  <entry>
    <title>A modeling framework to assess climate vulnerability and future distributions of tropical tree species: a case study on Brazilian ipês.</title>
    <link rel="alternate" href="https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187793" />
    <author>
      <name>BORBA, F. de C.</name>
    </author>
    <author>
      <name>BEZERRA, C. de S.</name>
    </author>
    <author>
      <name>TOMAZ, J. S.</name>
    </author>
    <author>
      <name>MARQUES, M. J.</name>
    </author>
    <author>
      <name>CAPUCHO, H. L. V.</name>
    </author>
    <author>
      <name>SOUZA, S. F. de</name>
    </author>
    <author>
      <name>FERREYRA RAMOS, S. L.</name>
    </author>
    <author>
      <name>LOPES, R.</name>
    </author>
    <author>
      <name>MENESES, C. H. S. G. de</name>
    </author>
    <author>
      <name>LOPES, M. T. G.</name>
    </author>
    <id>https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187793</id>
    <updated>2026-06-28T12:37:07Z</updated>
    <published>2026-01-01T00:00:00Z</published>
    <summary type="text">Título: A modeling framework to assess climate vulnerability and future distributions of tropical tree species: a case study on Brazilian ipês.
Autoria: BORBA, F. de C.; BEZERRA, C. de S.; TOMAZ, J. S.; MARQUES, M. J.; CAPUCHO, H. L. V.; SOUZA, S. F. de; FERREYRA RAMOS, S. L.; LOPES, R.; MENESES, C. H. S. G. de; LOPES, M. T. G.
Conteúdo: Assessing climate vulnerability of tropical trees requires ecological niche modeling frameworks capable of integrating multiple sources of uncertainty. Here, we present an integrated modeling approach that combines climatic, edaphic, and topographic predictors, dimensionality reduction, multi-algorithm calibration, and ensemble forecasting to evaluate future environmental suitability under climate change. Using two Brazilian Handroanthus species as a case study, occurrence data were spatially filtered, predictors were summarized through principal component analysis, and models were built using six algorithms with performance-weighted consensus projections. Future distributions were projected for three time periods (2041–2060, 2061–2080, and 2081–2100) under intermediate and high emission scenarios (SSP2-4.5 and SSP5-8.5). The framework showed high predictive reliability and revealed contrasting vulnerability patterns, including severe suitability losses for one species and greater stability for the other across phytogeographic domains. Beyond species-specific outcomes, results demonstrate how integrated Ecologial Niche Modeling (ENM) frameworks can identify climate-driven risk gradients and support climate-informed conservation, forest management, and territorial planning in tropical regions.</summary>
    <dc:date>2026-01-01T00:00:00Z</dc:date>
  </entry>
  <entry>
    <title>Characterization and selection of native rhizobia from amazonian soils for Vigna unguiculata (l.) Walp.</title>
    <link rel="alternate" href="https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187603" />
    <author>
      <name>MAJOLO, C.</name>
    </author>
    <author>
      <name>SANTOS, J. P. dos</name>
    </author>
    <author>
      <name>PERIN, R.</name>
    </author>
    <author>
      <name>RIBEIRO, N. H. S.</name>
    </author>
    <author>
      <name>ABREU, J. A. A. de</name>
    </author>
    <author>
      <name>SANTOS, S. F.</name>
    </author>
    <author>
      <name>SILVA, E. L. da</name>
    </author>
    <author>
      <name>REIS, V. R.</name>
    </author>
    <author>
      <name>NOGUEIRA, M. A.</name>
    </author>
    <author>
      <name>MUNIZ, A. W.</name>
    </author>
    <id>https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187603</id>
    <updated>2026-06-21T10:45:26Z</updated>
    <published>2026-01-01T00:00:00Z</published>
    <summary type="text">Título: Characterization and selection of native rhizobia from amazonian soils for Vigna unguiculata (l.) Walp.
Autoria: MAJOLO, C.; SANTOS, J. P. dos; PERIN, R.; RIBEIRO, N. H. S.; ABREU, J. A. A. de; SANTOS, S. F.; SILVA, E. L. da; REIS, V. R.; NOGUEIRA, M. A.; MUNIZ, A. W.
Conteúdo: ABSTRACT: Cowpea (Vigna unguiculata) is a legume of great socioeconomic importance in Brazil, particularly in the North and Northeast regions, where it accounts for about 30% of the country’s total bean production. It plays a critical role in food security and income generation for smallholder farmers, especially in challenging environments such as the Amazon. However, cowpea yield remains limited due to low technology adoption and poor management practices. Biological nitrogen fixation (BNF), mediated by symbiotic bacteria such as Bradyrhizobium and Rhizobium, offers a sustainable alternative to chemical fertilizers. This study aimed to isolate and characterize rhizobia from distinct Amazonian soils (Floodplain, Amazonian dark earth, and Oxisol). The isolates were evaluated in greenhouse conditions for cowpea growth promotion and characterized by 16S rRNA gene sequencing. Shoot dry mass (SDM) ranged from 736.67 to 2,220 mg per plant, and shoot dry mass nitrogen (SDMN) from 17.09 to 66.85 mg per plant. Most isolates promoted nodulation, with Rhizobium predominating, and several isolates showed similar agronomic performance, not statistically different from the recommended strain SEMIA 6462. The results indicate the potential of these native isolates for use as bioinoculants adapted to Amazonian conditions. These findings highlight the potential of native rhizobia as candidates for the development of bioinoculants adapted to Amazonian conditions. Caracterização e seleção de rizóbios nativos de solos amazônicos para Vigna unguiculata (l.) Walp. RESUMO: O feijão-caupi (Vigna unguiculata) é uma leguminosa de grande importância socioeconômica no Brasil, especialmente nas regiões Norte e Nordeste, onde responde por cerca de 30% da produção nacional de feijão. Sua relevância está associada à segurança alimentar e à geração de renda para pequenos produtores, sobretudo em ambientes de cultivo adversos, como os da Amazônia. Entretanto, sua produtividade é limitada pelo baixo uso de tecnologias e manejo inadequado. A fixação biológica de nitrogênio (FBN), mediada por bactérias simbióticas como Bradyrhizobium e Rhizobium, constitui uma alternativa sustentável aos fertilizantes químicos. Este estudo teve como objetivo isolar e caracterizar rizóbios oriundos de solos amazônicos distintos (várzea, terra preta de índio e latossolo). As bactérias isoladas foram avaliadas em casa de vegetação quanto à promoção de crescimento do caupi e caracterizadas por sequenciamento do gene 16S rRNA. A massa seca da parte aérea (MSPA) variou de 736,67 a 2.220 mg por planta, e o acúmulo de nitrogênio (N-MSPA), de 17,09 a 66,85 mg por planta. A maioria dos isolados promoveu nodulação, com predominância do gênero Rhizobium, e vários isolados apresentaram desempenho agronômico semelhante, não diferindo estatisticamente da estirpe recomendada SEMIA 6462. Os resultados indicam o potencial desses rizóbios nativos como candidatos para o desenvolvimento de bioinoculantes adaptados às condições amazônicas.</summary>
    <dc:date>2026-01-01T00:00:00Z</dc:date>
  </entry>
  <entry>
    <title>Inoculação e coinoculação de rizóbios nativos e Biomaphos® no feijão-caupi sob sistema de plantio direto na Amazônia.</title>
    <link rel="alternate" href="https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187627" />
    <author>
      <name>MAJOLO, C.</name>
    </author>
    <author>
      <name>NUNES, D. M.</name>
    </author>
    <author>
      <name>PINHEIRO, E. C.</name>
    </author>
    <author>
      <name>PERIN, R.</name>
    </author>
    <author>
      <name>MUNIZ, A. W.</name>
    </author>
    <id>https://www.alice.cnptia.embrapa.br/alice/handle/doc/1187627</id>
    <updated>2026-06-21T10:46:57Z</updated>
    <published>2026-01-01T00:00:00Z</published>
    <summary type="text">Título: Inoculação e coinoculação de rizóbios nativos e Biomaphos® no feijão-caupi sob sistema de plantio direto na Amazônia.
Autoria: MAJOLO, C.; NUNES, D. M.; PINHEIRO, E. C.; PERIN, R.; MUNIZ, A. W.
Conteúdo: O estudo avaliou o efeito da inoculação e da coinoculação de rizóbios nativos e do inoculante fosfatossolubilizador BiomaPhos® sobre o desenvolvimento e a produtividade do feijão-caupi (Vigna unguiculata (L.) Walp.) em sistema de plantio direto em Manaus, AM. Os experimentos foram conduzidos em dois anos consecutivos: 2024 (com irrigação suplementar) e 2025 (em condições naturais de precipitação - sem irrigação). Utilizou-se delineamento em blocos ao acaso com nove tratamentos, incluindo estirpes nativas de solos amazônicos (AM200/2022 e AM212/2022), a estirpe padrão (SEMIA 6462 - Bradyrhizobium yuanmingense), BiomaPhos® e suas combinações, além dos controles com e sem adubação. Em 2024, as estirpes AM200 e AM212 e a coinoculação AM200 + BiomaPhos® promoveram maior massa da parte aérea seca e, no isolado nativo AM212 e sua associação com BiomaPhos®, maior acúmulo de nitrogênio na planta, em comparação com o controle adubado e os demais tratamentos. Em 2025, os teores de nitrogênio nos grãos foram mantidos em AM212 e em BiomaPhos® + AM212, equivalentes aos dos controles. A ausência de diferenças na produtividade entre os dois anos sugere a eficiência da atuação dos rizóbios nativos. As estirpes AM200 e AM212 apresentam potencial inicial para uso futuro em formulações de bioinsumos regionais, devendo ser testadas em solos de menor fertilidade e em diferentes regiões do estado. Inoculation and co-inoculation of native rhizobia and Biomaphos® on cowpea under no-tillage system in the Amazon. This study evaluated the effect of inoculation and co-inoculation with native rhizobia and the phosphate-solubilizing inoculant BiomaPhos® on the development and yield of cowpea (Vigna unguiculata (L.) Walp.) under no-tillage system conditions in Manaus, Amazonas, Brazil. The experiments were conducted over two consecutive years: 2024 (with supplemental irrigation) and 2025 (under natural rainfall conditions without irrigation). A randomized block design with nine treatments was used, including native strains isolated from Amazonian soils (AM200/2022 and AM212/2022), the reference strain SEMIA 6462 (Bradyrhizobium yuanmingense), BiomaPhos® and their combinations, and the native strain AM212 and its association with BiomaPhos®. In 2024, the AM200 and AM212 strains and the AM200 + BiomaPhos® co-inoculation promoted greater shoot dry mass, while the native isolates and the unfertilized control showed greater nitrogen accumulation in plants compared to the fertilized control and the other treatments. In 2025, grain nitrogen contents were maintained in the AM212 and BiomaPhos® + AM212 treatments, with values equivalent to the controls. The absence of significant differences in grain yield over the two years suggests the activity of efficient native rhizobia populations in the experimental area. The AM200 and AM212 strains showed initial potential for future use in regional bioinput formulations and should be further evaluated in soils with lower fertility and in different regions of the state.</summary>
    <dc:date>2026-01-01T00:00:00Z</dc:date>
  </entry>
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