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Registros recuperados: 43 | |
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MOREIRA, V. J. V.; PINHEIRO, D. H.; LOURENCO, I. T.; BASSO, M. F.; LISEI-DE-SA, M. E.; SILVA, M. C. M. da; DANCHIN, E. G. J.; GUIMARAES, P. M.; GRYNBERG, P.; BRASILEIRO, A. C. M.; MACEDO, L. L. P. de; MORGANTE, C. V.; ENGLER, J. de A.; SA, M. F. G. de. |
Meloidogyne incognita is one of the most important plant-parasitic nematodes (PPNs) causing severe crop losses worldwide. Plants have evolved complex defense mechanisms to respond to PPNs attacks. Conversely, PPNs have evolved infection mechanisms that involve the secretion of effector proteins into host plants to suppress immune responses and facilitate para- sitism. Therefore, effector genes are attractive targets for the genetic improvement of plant resistance to M. incognita. In this study, we functionally characterized the Minc16803 (Minc3s00746g16803) putative effector gene to evaluate its role during plant-nematode interactions. First, we found that the Minc16803 gene is expressed in all nematode life stages and encodes a protein with an N-terminal... |
Tipo: Artigo de periódico |
Palavras-chave: Host-induced gene silencing; DsRNA; Plant-nematode interactions; Root-knot nematode; Nematoide das galhas; Interações planta-nematóide; Planta; Parasito de Planta; Nematóide; Meloidogyne Incognita; Nematode biology; Nematode control; Plant parasitic nematodes. |
Ano: 2024 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1154064 |
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COSTA, S. N. de O.; SILVA, M. V. T. e; RIBEIRO, J. M.; CASTRO, J. M. da C. e; MUZITANO, M. F.; COSTA, R. G. da; OLIVEIRA, A. E. A.; FERNANDES, K. V. S.. |
The guava tree (Psidium guajava) is a tropical species native to South America and is recognized as the 11th most economically important fruit tree in Brazil. However, the presence of the nematode Meloidogyne enterolobii and the fungus Fusarium solani in the roots of guava plants leads to the development of root galls, causing significant damage. In contrast, the species P. guineense and P. cattleianum have been identified as resistant and immune to the nematode, respectively. In this study, the researchers aimed to compare the metabolomic profiles of infected and uninfected roots of P. guajava, P. cattleianum, and P. guineense using mass spectrometry coupled with liquid chromatography (LC-MS). The goal was to identify secondary metabolites that could... |
Tipo: Artigo de periódico |
Palavras-chave: Meloidogyne enterolobii; Goiabeira; Nematódeos; Metabólitos secundários; Goiaba; Nematóide; Fungo; Fusarium Solani; Guavas; Nematode control; Psidium. |
Ano: 2023 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1154899 |
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MARANGUAPE, J. S.; POMPEU, R. C. F. F.; VIEIRA, L. da S.; SOUZA, H. A. de; OLIVEIRA, E. L. de; SOUSA, A. M. P.; COSTA, C. dos S.; SANTOS, M. A. dos; PEREIRA, P. L.; SALLES, H. O.. |
Abstract: Gastrointestinal parasitism is one of the factors that discourages farmers from raising small ruminants in cultivated pastures. To validate a soil treatment strategy to control the free-living stages of gastrointestinal nematodes (GIN), castor cake (CC) was used as a fertilizer on a pasture where sheep grazed on guinea grass under continuous stocking. On day zero, the pasture was divided into three paddocks, contaminated by GIN and treated, respectively, with CC divided into two applications (2CC1/2), CC in a single application (CC1) and organic compost in a single application (control). On day 21, eight GIN-free sheep were placed in each paddock. On day 58, significant differences (P<0.05) were observed: reduction of up to 66.10% in... |
Tipo: Artigo de periódico |
Palavras-chave: Agroindustrial waste; Continuous stocking; Desempenho produtivo; Lotação contínua; Resíduos agroindustriais; Nematoides gastrintestinais; Torta de mamona; Capim-tanzânia; Controle de verminose; Ovino; Haemonchus Contortus; Helminto Gastrintestinal; Resíduo Agrícola; Resíduo Industrial; Eficiência Reprodutiva; Small ruminants; Megathyrsus maximus; Reproductive performance; Gastrointestinal nematodes; Nematode control. |
Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1128140 |
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ANDRÉ, W. P. P.; PAIVA JUNIOR, J. R. de; CAVALCANTE, G. S.; RIBEIRO, W. L. C.; ARAÚJO FILHO, J. V. de; SANTOS, J. M. L. dos; ALVES, A. P. N. N.; MONTEIRO, J. P.; MORAIS, S. M. de; SILVA, I. N. G. da; OLIVEIRA, L. M. B. de; ABREU, F. O. M. da S.; BEVILAQUA, C. M. L.. |
Abstract: The objective of this study was to evaluate the efficacy of carvacryl acetate (CVA) and nanoencapsulated CVA (nCVA) on gastrointestinal nematodes of sheep. The CVA was nanoencapsulated with chitosan/gum arabic and the efficacy of nanoencapsulation (EE), yield, zeta potential, nanoparticle morphology and release kinetics at pH 3 and 8 were analyzed. Acute and subchronic toxicity were evaluated in rodents and reduction of egg counts in the faeces (FECRT) of sheep. The sheep were divided into four groups (n = 10): G1, 250 mg/kg CVA; G2, 250 mg/kg nCVA; G3, polymer matrix and G4: 2.5 mg/kg monepantel. EE and nCVA yield were 65% and 57%, respectively. The morphology of the nanoparticles was spherical, size (810.6±286.7 nm), zeta potential in pH 3.2... |
Tipo: Artigo de periódico |
Palavras-chave: Quitosana; Biocompostos; Acetilação; Nematoide gastrintestinal; Acetato de carvacrila; Segurança toxicológica; Biocompounds; Toxicological safety; Gastrointestinal parasitic nematodes; Ovino; Haemonchus Contortus; Helminto Gastrintestinal; Goma Arábica; Anti-Helmíntico; Parasitose; Chitosan; Gum arabic; Acetylation; Nematode control; Essential oils; Bioactive compounds. |
Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125192 |
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SOUZA, C. F. B.; GALBIERI, R.; BELOT, J.-L.; NEGRI, B. F.; PERINA, F. J.; PRENDI, J. V. G. T.; CARES, J. E.; CARNEIRO, R. M. D. G.. |
Meloidogyne incognita é a espécie de nematoide mundialmente conhecida por infectar o algodoeiro, e a cultivar resistente IMA 5801B2RF foi lançada recentemente no Brasil para o seu controle. Em 2019, a primeira infecção por M. enterolobii em algodão resistente foi relatada no estado de Minas Gerais. Em 2021, o algodoeiro resistente cv. IMA 5801B2RF exibindo múltiplas galhas e plantas de porte reduzido foram detectadas no município de São Desidério, Bahia. |
Tipo: Anais e Proceedings de eventos |
Palavras-chave: Nematóide das galhas; Agricultura; Algodão; Gossypium Hirsutum; Nematóide; Pesquisa Agrícola; Resistência; Parasito; Tecnologia; Agricultural research; Application technology; Biological resistance; Cotton; Gossypium; Nematode biology; Nematode control. |
Ano: 2022 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1150304 |
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SANTOS, J. M. L. dos; MONTEIRO, J. P.; RIBEIRO, W. L. C.; MACEDO, I. T. F.; FONTENELE, J. A.; FREITAS, E.; RIBEIRO, J. de C.; SAMPAIO, R. A.; ARAÚJO FILHO, V.; CAMURÇA-VASCONCELOS, A. L. F.; VIEIRA, L. da S.; BEVILÁQUA, C. M. L.. |
Tipo: Anais e Proceedings de eventos |
Palavras-chave: Nematóide gastrintestinal; Parasito animal; Resistance to anthelmintics.; Haemonchus contortus; Nematóide; Anti-helmíntico; Benzimidazol; Resistência; Helminto gastrintestinal.; Nematoda; Nematode control; Anthelmintics; Parasitoids; Parasites; Helminths.. |
Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/977641 |
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Registros recuperados: 43 | |
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