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Registros recuperados: 8
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Bonamia parasites: a rapidly changing perspective on a genus of important mollusc pathogens ArchiMer
Engelsma, Marc; Culloty, Sarah C.; Lynch, Sharon A.; Arzul, Isabelle; Carnegie, Ryan B..
Organisms of the genus Bonamia are intracellular protistan parasites of oysters. To date, 4 species have been described (B. ostreae, B. exitiosa, B. perspora and B. roughleyi), al though the status of B. roughleyi is controversial. Introduction especially of B. ostreae and B. exitiosa to naïve host populations has been shown to cause mass mortalities in the past and has had a dramatic impact on oyster production. Both B. ostreae and B. exitiosa are pathogens notifiable to the World Organisation for Animal Health (OIE) and the European Union. Effective management of the disease caused by these pathogens is complicated by the extensive nature of the oyster production process and limited options for disease control of the cultured stocks in open water. This...
Tipo: Text Palavras-chave: Bonamia ostreae; Bonamia exitiosa; Oyster disease; Phylogenetics; Geographical spread; Diagnostics; Epizootiology; Host-parasite interaction; Bonamiosis.
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00200/31169/29568.pdf
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Enrichment of repeats in proteins of protozoan parasites relates to the ability to invade host cells and evade host immune response. Repositório Alice
MENDES, T. A. de O.; LOBO, F. P.; RODRIGUES, T. S.; LUIZ, G. F. R.; ROCHA, W. D. da; FUJIWARA, R. T.; TEIXEIRA, S. M. R.; BARTHOLOMEU, D. C..
Here, we investigated whether there is a bias in the repetitive content found in the predicted proteomes of six exclusively extracellular, and seventeen obligate intracellular protozoan parasites, as well as four free-living protists and tried to correlate the results with the distinct ecological niches they occupy and with distinct protein functions.
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Evolução do genoma; Evolução adaptativa; Interação hóspede-parasita; Adaptive evolution; Genome evolution; Host-parasite interaction; Genome.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/handle/doc/946661
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Gene expression in the salivary gland of Rhipicephalus (Boophilus) microplus fed on tick-susceptible and tick-resistant hosts. Repositório Alice
GIACHETTO, P. F.; CUNHA, R. C.; NHANI JUNIOR, A.; GARCIA, M. V.; FERRO, J. A.; ANDREOTTI, R..
The success of cattle tick fixation largely depends on the secretion of substances that alter the immune response of the host. The majority of these substances are expressed by the parasite salivary gland and secreted in tick saliva. It is known that hosts can mount immune responses against ticks and bovine European breeds, and bovine industrial crossbreeds are more susceptible to infestations than are Bos indicus cattle. To identify candidates for the development of novel control strategies for the cattle tick Rhipicephalus (Boophilus) microplus, a salivary gland transcriptome analysis of engorged females fed on susceptible or resistant hosts was performed. Using RNA-Seq, transcriptomes were de novo assembled and produced a total of 235,451 contigs with...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bioinformática; Expressão gênica; RNA-Seq; Cattle tick; Host-parasite interaction; Gado de Corte; Carrapato; Sialome; Transcriptome; Cattle; Bioinformatics; Rhipicephalus microplus.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1124241
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Gene Expression in the Salivary Gland of Rhipicephalus (Boophilus) microplus Fed on Tick-Susceptible and Tick-Resistant Hosts. Repositório Alice
GIACHETTO, P. F.; CUNHA, R. C.; NHANI JUNIOR, A.; GARCIA, M. V.; FERRO, J. A.; ANDREOTTI, R..
The success of cattle tick fixation largely depends on the secretion of substances that alter the immune response of the host. The majority of these substances are expressed by the parasite salivary gland and secreted in tick saliva. It is known that hosts can mount immune responses against ticks and bovine European breeds, and bovine industrial crossbreeds are more susceptible to infestations than are Bos indicus cattle. To identify candidates for the development of novel control strategies for the cattle tick Rhipicephalus (Boophilus) microplus, a salivary gland transcriptome analysis of engorged females fed on susceptible or resistant hosts was performed. Using RNA-Seq, transcriptomes were de novo assembled and produced a total of 235,451 contigs with...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: RNA-Seq; Cattle tick; Host-parasite interaction; Sialome; Transcriptome; Cattle.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119455
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Honey bee colonies act as reservoirs for two Spiroplasma facultative symbionts and incur complex, multiyear infection dynamics. Repositório Alice
SCHWARZ, R. S.; TEIXEIRA, E. W.; TAUBER, J. P.; BIRKE, J. M.; MARTINS, M. F.; FONSECA, I.; EVANS, J. D..
2014
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Flower microbe communities; Host-parasite interaction; Microbial prevalence; Spiroplasma; Symbiont; Temporal survey.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/987566
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Melatonin and N-acetyl-serotonin cross the red blood cell membrane and evoke calcium mobilization in malarial parasites BJMBR
Hotta,C.T.; Markus,R.P.; Garcia,C.R.S..
The duration of the intraerythrocytic cycle of Plasmodium is a key factor in the pathogenicity of this parasite. The simultaneous attack of the host red blood cells by the parasites depends on the synchronicity of their development. Unraveling the signals at the basis of this synchronicity represents a challenging biological question and may be very important to develop alternative strategies for therapeutic approaches. Recently, we reported that the synchrony of Plasmodium is modulated by melatonin, a host hormone that is synthesized only during the dark phases. Here we report that N-acetyl-serotonin, a melatonin precursor, also releases Ca2+ from isolated P. chabaudi parasites at micro- and nanomolar concentrations and that the release is blocked by 250...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Malaria; Plasmodium; Calcium; Melatonin; Circadian rhythm; Host-parasite interaction.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001100016
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Molecular characterization and T and B cell epitopes prediction of Mycoplasma synoviae 53 strain VlhA hemagglutinin Genet. Mol. Biol.
Camargo,Ilana Lopes; Fonseca,Cristina Toscano; Teixeira,Santuza Ribeiro; Azevedo,Vasco; Myioshi,Anderson; Oliveira,Sergio Costa.
Mycoplasma sinoviae is a major pathogen of poultry causing synovitis and respiratory infection. M. synoviae hemagglutinin (VlhA) is a lipoprotein encoded by related multigene families that appear to have arisen by horizontal gene transfer. It is an abundant immunodominant surface protein involved in host-parasite interaction mediating binding to host erythrocytes. Herein, we have performed in silico analysis of the vlhA gene product from the Mycoplasma synoviae 53 strain and compared it to the VlhA protein of M. synoviae WUV1853 strain. The VlhA of the M. synoviae 53 strain possesses 569 amino acids and showed 85% identity with the VlhA protein of the M. synoviae WUV1853 strain. Further, a signal peptide was identified from amino acid M1 to D28 and a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mycoplasma synoviae; Hemagglutinin; Epitopes; Host-parasite interaction; Vaccine.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000200013
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The host-parasite relationship between the rainbow trout (Oncorhynchus mykiss) and the ectoparasite Argulus foliaceus (Crustacea: Branchiura): epithelial mucous cell response, cortisol and factors which may influence parasite establishment Naturalis
Nolan, D.T.; Salm, A.L. van der; Wendelaar Bonga, S.E..
The effects of short-term infection with the branchurian crustacean ectoparasite Argulus foliaceus, and the fish stress hormone cortisol (which is reported to stimulate mucus discharge), were studied on the mucous cell population of the head skin of rainbow trout (Oncorhynchus mykiss). Argulus infection did not raise plasma cortisol significantly and had no effect on the number of epidermal mucous cells in the head skin. Cortisol was administered twice to groups of trout via the food, significantly elevating circulating plasma cortisol at 24 h post feeding without affecting numbers of mucous cells, and increasing the numbers of vesicles in the upper cells of the epidermis. Subsequent infection with the parasite (6 Argulus f/fish) did not affect either...
Tipo: Article / Letter to the editor Palavras-chave: Ectoparasites; Host-parasite interaction; Skin epidermis; Cortisol; Mucous cells; Transmission electron microscopy.
Ano: 2000 URL: http://www.repository.naturalis.nl/record/534370
Registros recuperados: 8
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