DSpace Coleção: Artigo em periódico indexado (CNPAT)Artigo em periódico indexado (CNPAT)https://www.alice.cnptia.embrapa.br/alice/handle/item/612026-04-12T20:07:38Z2026-04-12T20:07:38ZMicropropagation as an alternative to vegetative propagation in Anthurium plowmanii Croat.SILVEIRA, M. V. de S.SCHNEIDER, F.SILVA, W. M. S. daCAMPOS, A. S.CARVALHO, A. C. P. P. dehttps://www.alice.cnptia.embrapa.br/alice/handle/doc/11862022026-04-12T01:35:46Z2026-01-01T00:00:00ZTítulo: Micropropagation as an alternative to vegetative propagation in Anthurium plowmanii Croat.
Autoria: SILVEIRA, M. V. de S.; SCHNEIDER, F.; SILVA, W. M. S. da; CAMPOS, A. S.; CARVALHO, A. C. P. P. de
Conteúdo: In the flower and ornamental plant sector, species of genus Anthurium stand out, particularly Anthurium plowmanii, known for its lush, wavy, bright green leaves, which create an eye- catching and harmonious display, making it ideal for the foliage market. The species is mainly propagated from seeds, a lengthy process, requiring time for the seedling to reach the commercial stage, and resulting in non-uniform plants that differ from the parents. In this respect, tissue culture is seen as an efficient alternative in the large-scale production of uniform plantlets of high genetic and phytosanitary quality. The aim of this study was to evaluate the in-vitro propagation of A. plowmanii from nodal segments in Pierik culture medium with different concentrations of cytokinin. The experimental design was completely randomised, and included six BAP concentrations (0, 1.11, 2.22, 3.33, 4.44 and 5.55 µM) in five replications, each replication comprising 10 test tubes containing one nodal segment. After 60 days of in-vitro culture, the nodal segment explants were evaluated for the number of shoots and roots, height, fresh and dry matter, number of leaves and length of the longest root. The results show that for shoot formation in A. plowmanii, BAP must be added to the culture medium at a concentration of 3.33 µM. Furthermore, increasing the BAP concentration resulted in a greater number of leaves and an increase in the fresh and dry matter of the explant. No setor de flores e plantas ornamentais, as espécies do gênero Anthurium se destacam, especialmente Anthurium plowmanii, conhecida por suas folhas exuberantes, onduladas e de um verde brilhante, que formam um limbo vistoso e harmonioso, sendo ideal para comercialização no segmento de folhagens. A propagação dessa espécie se dá principalmente a partir das sementes, processo que demanda muito tempo para que a muda atinja o estágio de comercialização, além de resultar em plantas desuniformes, diferentes das matrizes. Assim, a cultura de tecidos surge como uma alternativa eficiente para a produção em larga escala de mudas uniformes, com alta qualidade genética e fitossanitária. Sendo assim, objetivou-se avaliar a propagação in vitro de A. plowmanii a partir de segmentos nodais, em diferentes concentrações de citocinina no meio de cultivo Pierik. O delineamento experimental foi o inteiramente casualizado, com seis concentrações de BAP: 0; 1,11; 2,22; 3,33; 4,44 e 5,55 µM, em cinco repetições, sendo cada repetição constituída por 10 tubos de ensaio, contendo um segmento nodal. Aos 60 dias de cultivo in vitro, os explantes de segmentos nodais foram avaliados quanto ao número de brotos e raízes, altura e massas fresca e seca, número de folhas e comprimento da maior raiz. Os resultados indicam que para formação de brotações em A. plowmanii é necessária a adição de BAP ao meio de cultivo sob a concentração de 3,33 µM. Além disso, o aumento da concentração de BAP resultou também no maior número de folhas e de massas fresca e seca do explante.2026-01-01T00:00:00ZSalinirifamycins A−E: Rifamycin S Derivatives from the Brazilian Marine Actinomycete Salinispora arenicola.SILVA, A. B. daPINTO, F. C. L.SILVEIRA, E. R.PAULO, T. de F.WILKE, D. V.FERREIRA, E. G.COSTA-LOTUFOCANUTO, K. M.MARINHO FILHO, J. D. B.BARROS, A. B.NUZZO, G.FONTANA, A.MONTEIRO, R. K. V.https://www.alice.cnptia.embrapa.br/alice/handle/doc/11862072026-04-12T01:35:56Z2026-01-01T00:00:00ZTítulo: Salinirifamycins A−E: Rifamycin S Derivatives from the Brazilian Marine Actinomycete Salinispora arenicola.
Autoria: SILVA, A. B. da; PINTO, F. C. L.; SILVEIRA, E. R.; PAULO, T. de F.; WILKE, D. V.; FERREIRA, E. G.; COSTA-LOTUFO; CANUTO, K. M.; MARINHO FILHO, J. D. B.; BARROS, A. B.; NUZZO, G.; FONTANA, A.; MONTEIRO, R. K. V.
Conteúdo: Five new rifamycin derivatives, named salinirifamy- cins A−E (1−5), were isolated from a Brazilian marine Salinispora arenicola (BRA-213) strain extract. The structures of the new rifamycins were elucidated using a combination of NMR, IR, UV, and MS spectroscopic techniques, quantum-chemical calculations (DFT-calculated 13 C NMR chemical shifts and DP4+ probability analysis), and comparison of experimental and calculated electronic circular dichroism (ECD) spectra. Compounds 1, 2, and 4 displayed antibacterial activity against Staphylococcus aureus and Enterococcus faecalis with MIC values ranging from 2.0 to 125.0 μg/ mL, whereas 5 exhibited an MIC of 0.02 μg/mL to S. aureus, similar to the positive control rifampicin (MIC 0.03 μg/mL).2026-01-01T00:00:00ZPerceptions of local food consumption and sensory acceptance of cashew products among tourists in Ceará, Brazil.ARAÚJO, I. M. S.GARRUTI, D. dos S.GIRAO, E. G.CAVALCANTE, S. R. M.SILVA, Y. O.ARAÚJO, A. J. C.MEDEIROS M. M. L.https://www.alice.cnptia.embrapa.br/alice/handle/doc/11861272026-04-12T01:35:22Z2026-01-01T00:00:00ZTítulo: Perceptions of local food consumption and sensory acceptance of cashew products among tourists in Ceará, Brazil.
Autoria: ARAÚJO, I. M. S.; GARRUTI, D. dos S.; GIRAO, E. G.; CAVALCANTE, S. R. M.; SILVA, Y. O.; ARAÚJO, A. J. C.; MEDEIROS M. M. L.
Conteúdo: This study investigated tourists’ perceptions, familiarity, and sensory acceptance of cashew-derived products in Beberibe, Ceará, Brazil—a major cashew-producing region and popular tourist destination. Recognizing the growing role of gastronomy in tourism, the research examined the potential of local cashew products to enhance gastronomic tourism and contribute to regional economic development. A mixed-methods approach was employed, combining an online survey of 132 tourists with sensory tests of five cashew-based products: cashew juice, cajuina, cashew fruit confection, cashew syrup, and a plant-based croquette made from cashew fiber. The survey assessed tourists’ motivations to try local foods and their attitudes toward cashew products using a five-point Likert scale, while sensory evaluations applied a nine-point hedonic scale and a five-point purchase intent scale. Results indicated that most tourists were interested in trying new foods and valued consuming local food, particularly products from family farms. Moreover, participants reported that they would be more likely to purchase local food if informed about the region’s history, culture, and production processes. High levels of acceptance were observed for cashew fruit confection, cajuina, and the croquette, each achieving mean sensory scores of 8.0 or above. By integrating sensory testing with motivational and demographic analyses, this study underscores the potential of cashew products to promote gastronomic tourism and provides actionable insights for stakeholders seeking to strengthen marketing strategies and support local economic growth. Practical measures such as improved packaging, storytelling, and short marketing circuits may further enhance product visibility.2026-01-01T00:00:00ZA draft genome assembly of the agricultural pest Leucoptera coffeella and analysis of its dsRNA processing machinery is a key step toward RNAi-based biopesticides in LepidopteraGOLDBERG, J. K.VIDAL, L. A.QUEIROZ, E. S. L.NASCIMENTO, E. F. M. B.VIANA, M. J. A.CLARINDO, W. R.MARANHAO, A. Q.MARTINS, N. F.FREIRE, E. V. S. A.https://www.alice.cnptia.embrapa.br/alice/handle/doc/11853642026-03-14T13:24:40Z2026-01-01T00:00:00ZTítulo: A draft genome assembly of the agricultural pest Leucoptera coffeella and analysis of its dsRNA processing machinery is a key step toward RNAi-based biopesticides in Lepidoptera
Autoria: GOLDBERG, J. K.; VIDAL, L. A.; QUEIROZ, E. S. L.; NASCIMENTO, E. F. M. B.; VIANA, M. J. A.; CLARINDO, W. R.; MARANHAO, A. Q.; MARTINS, N. F.; FREIRE, E. V. S. A.
Conteúdo: The Coffee Leaf Miner (Lepidoptera: Lyonetiidae: Leucoptera coffeella) is a specialist herbivore and major global pest of coffee plants. Current pest control strategies primarily rely on chemical pesticides which in turn negatively impact both human health and ecological stability. Additionally, the emergence of insecticide-resistant populations underscores the urgent need for more specific and efficient pest management strategies. The development of novel techniques for controlling this insect pest requires rigorous interrogation of its physiology and interactions with host plants at a molecular/genetic level. To enable future research in this vein, we sequenced and assembled a draft L. coffeella genome using PacBio highly accurate long-reads (HiFi). Our assembly is comprised of 1,615 contigs showing fragmentation, yet the majority of gene content is represented (BUSCO complete = 91.7%). We annotated 17,467 protein-coding genes within our assembly, seven of which are core components of the small interfering RNA machinery. The expression of these genes was further confirmed via qPCR. This analysis—and the underlying genomic data—highlights potential targets for RNAi-based biopesticide development and will serve as the foundation for important future research aimed at protecting global coffee production from one of its most destructive pests.2026-01-01T00:00:00Z