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Biblioteca(s):  Embrapa Gado de Leite.
Data corrente:  03/06/2014
Data da última atualização:  05/02/2024
Tipo da produção científica:  Artigo em Periódico Indexado
Autoria:  SCHWARZ, R. S.; TEIXEIRA, E. W.; TAUBER, J. P.; BIRKE, J. M.; MARTINS, M. F.; FONSECA, I.; EVANS, J. D.
Afiliação:  RYAN S. SCHWARZ, Bee Research Lab, USDA; ERICA WEINSTEIN TEIXEIRA, APTA-SP; JAMES P. TAUBER, Bee Research Lab, USDA; JULIANE M. BIRKE, Bee Research Lab, USDA; MARTA FONSECA MARTINS, CNPGL; ISABELA FONSECA; JAY D. EVANS, Bee Research Lab, USDA.
Título:  Honey bee colonies act as reservoirs for two Spiroplasma facultative symbionts and incur complex, multiyear infection dynamics.
Ano de publicação:  2014
Fonte/Imprenta:  Microbiology Open, v. 3, n. 3, p. 341-355, 2014.
Páginas:  15 p.
DOI:  https://doi.org/10.1002%2Fmbo3.172
Idioma:  Inglês
Conteúdo:  Two species of Spiroplasma (Mollicutes) bacteria were isolated from and described as pathogens of the European honey bee, Apis mellifera, ∼30 years ago but recent information on them is lacking despite global concern to understand bee population declines. Here we provide a comprehensive survey for the prevalence of these two Spiroplasma species in current populations of honey bees using improved molecular diagnostic techniques to assay multiyear colony samples from North America (U.S.A.) and South America (Brazil). Significant annual and seasonal fluctuations of Spiroplasma apis and Spiroplasma melliferum prevalence in colonies from the U.S.A. (n = 616) and Brazil (n = 139) occurred during surveys from 2011 through 2013. Overall, 33% of U.S.A. colonies and 54% of Brazil colonies were infected by Spiroplasma spp., where S. melliferum predominated over S. apis in both countries (25% vs. 14% and 44% vs. 38% frequency, respectively). Colonies were co-infected by both species more frequently than expected in both countries and at a much higher rate in Brazil (52%) compared to the U.S.A. (16.5%). U.S.A. samples showed that both species were prevalent not only during spring, as expected from prior research, but also during other seasons. These findings demonstrate that the model of honey bee spiroplasmas as springtime-restricted pathogens needs to be broadened and their role as occasional pathogens considered in current contexts.
Palavras-Chave:  Flower microbe communities; Host-parasite interaction; Microbial prevalence; Symbiont; Temporal survey.
Thesaurus Nal:  Spiroplasma.
Categoria do assunto:  L Ciência Animal e Produtos de Origem Animal
URL:  https://ainfo.cnptia.embrapa.br/digital/bitstream/item/103040/1/Artigo-Marta-Honey-Bee-mbo3172.pdf
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Gado de Leite (CNPGL)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status URL
CNPGL21382 - 1UPCAP - DD
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Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br.

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Biblioteca(s):  Embrapa Caprinos e Ovinos.
Data corrente:  15/02/2013
Data da última atualização:  22/01/2019
Tipo da produção científica:  Artigo em Anais de Congresso
Autoria:  SOUZA, W. J. O.; SOUZA, H. A. de; ROZANE, D. E.; NATALE, W.
Afiliação:  W. J. O. Souza, Unesp (Universidade Estadual Paulista) - Campus Registro- Registro, SP; HENRIQUE ANTUNES DE SOUZA, CNPC; D. E. Rozane, Unesp (Universidade Estadual Paulista) - Campus Registro, Registro - SP; W. Natale, Unesp - Campus Jaboticabal - Jaboticabal, SP.
Título:  Evaluation of soil management and use in an ultisol in a Guava orchard in comparison with a sugarcane field and native forest area.
Ano de publicação:  2012
Fonte/Imprenta:  Acta Horticulturae, n. 959, p. 173-177, sept., 2012.
Idioma:  Inglês
Notas:  Edição do Proceedings of the III International Symposium on Guava and other Myrtaceae, Petrolina, sept. 2012.
Conteúdo:  Abstract: Studies to find out alternative inputs are important for sustainable agriculture. In this respect, the use of byproducts from guava processing can partially replace the requirements of mineral fertilizer and add organic matter to the soil, increased water retention capacity and mitigating the effects of traffic on the soil. The aim of the present study was to assess the physical aspects of the soil in function of fertilization of guava trees with organic and mineral fertilizers and to compare the results with those found in areas of sugarcane and native forest. The soil samples were obtained from a commercial guava orchard planted with the ?Paluma? (8 years) and ?Pedro Sato? (5 years) cultivars, vegetatively propagated, as well as from a cane field (5 years) and native forest for comparison. The results revealed that the soil moisture, density and penetration resistance varied between the different uses and fertilization regimes. The volumetric moisture and density in the areas cultivated with ?Paluma? guava trees were similar to those of the native forest. The soil moisture was greater in the rows of the guava trees and the density and penetration resistance were greater in the traffic paths.
Palavras-Chave:  Byproduct; Guava; Organic manure; Sacharum officinarum.
Thesagro:  Adubação; Adubo orgânico; Goiaba; Psidium guajava.
Categoria do assunto:  --
Marc:  Mostrar Marc Completo
Registro original:  Embrapa Caprinos e Ovinos (CNPC)
Biblioteca ID Origem Tipo/Formato Classificação Cutter Registro Volume Status
CNPC26633 - 1UPCAP - DD
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