Data/hora: 01/06/2024 13:15:12

Biblioteca(s): 	Biblioteca Rui Tendinha.	
Data corrente: 	29/04/2015	
Data da última atualização: 	01/09/2015	
Autoria: 	ABREU, P. M. V.; ANTUNES, T. F. S.; MAGAÑA-ÁLVAREZ, A.; PÉREZ-BRITO, D.; TAPIA-TUSSEL, R.; VENTURA, J. A.; FERNANDES, A. A. R.; FERNANDES, P. M. B.	
Afiliação: 	Paolla M. V. Abreu; Tathiana F. S. Antunes; Anuar Magaña-Álvarez; Daisy Pérez-Brito; Raúl Tapia-Tussell; Jose Aires Ventura, Incaper; Antonio A. R. Fernandes; Patricia M. B. Fernandes.	
Título: 	A Current Overview of the Papaya meleira virus, an Unusual Plant Virus.	
Ano de publicação: 	2015	
Fonte/Imprenta: 	Viruses, v. 7, p. 1853-1870, 2015.	
DOI: 	10.3390/v7041853	
Idioma: 	Inglês	
Conteúdo: 	Papaya meleira virus (PMeV) is the causal agent of papaya sticky disease, which is characterized by a spontaneous exudation of fluid and aqueous latex from the papaya fruit and leaves. The latex oxidizes after atmospheric exposure, resulting in a sticky feature on the fruit from which the name of the disease originates. PMeV is an isometric virus particle with a double-stranded RNA (dsRNA) genome of approximately 12 Kb. Unusual for a plant virus, PMeV particles are localized on and linked to the polymers present in the latex. The ability of the PMeV to inhabit such a hostile environment demonstrates an intriguing interaction of the virus with the papaya. A hypersensitivity response is triggered against PMeV infection, and there is a reduction in the proteolytic activity of papaya latex during sticky disease. In papaya leaf tissues, stress responsive proteins, mostly calreticulin and proteasome-related proteins, are up regulated and proteins related to metabolism are down-regulated. Additionally, PMeV modifies the transcription of several miRNAs involved in the modulation of genes related to the ubiquitin-proteasome system. Until now, no PMeV resistant papaya genotype has been identified and roguing is the only viral control strategy available. However, a single inoculation of papaya plants with PMeV dsRNA delayed the progress of viral infection.	
Thesaurus NAL: 	DsRNA genome virus; Laticifers colonization; Papaya sticky disease; Phytopathogenic virus.	
Categoria do assunto: 	G Melhoramento Genético	
URL: 	http://biblioteca.incaper.es.gov.br/digital/bitstream/item/748/1/CurrentOverviewofthePapayameleiravirusVentura.pdf	
Registro original: 	Biblioteca Rui Tendinha (BRT)	
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