scholarly journals Co-infection of Sweet Orange with Severe and Mild Strains of Citrus tristeza virus Is Overwhelmingly Dominated by the Severe Strain on Both the Transcriptional and Biological Levels

2017 ◽  
Vol 8 ◽  
Author(s):  
Shimin Fu ◽  
Jonathan Shao ◽  
Changyong Zhou ◽  
John S. Hartung
Keyword(s):  
Citrus Tristeza Virus ◽  
Sweet Orange ◽  
Severe Strain ◽  
Tristeza Virus ◽  
Citrus Tristeza

scholarly journals First Report from Syria of Citrus tristeza virus in Citrus spp.

Plant Disease ◽  
2008 ◽  
Vol 92 (10) ◽  
pp. 1468-1468
Author(s):  
R. Abou Kubaa ◽  
K. Djelouah ◽  
A. M. D'Onghia ◽  
R. Addante ◽  
M. Jamal
Keyword(s):  
Citrus Tristeza Virus ◽  
Sweet Orange ◽  
Citrus Limon ◽  
Potential Threat ◽  
First Report ◽  
Mexican Lime ◽  
Vein Clearing ◽  
Citrus Varieties ◽  
Tristeza Virus ◽  
Citrus Tristeza

During the spring of 2006, the main Syrian citrus-growing areas of Lattakia (Jableh, Aledyye, Eseelya, Siano, and Hresoon provinces) and Tartous (Almintar, Aljammase, Karto, Majdaloonelbahr, Yahmour, Amreet, Althawra, and Safita provinces) were surveyed to assess the presence of Citrus tristeza virus (CTV). Eight nurseries (approximately 130 plants per nursery), two budwood source fields (approximately 230 trees per field), and 19 groves (approximately 60 trees per grove) containing the main citrus varieties were visually inspected and sampled for serological assays. The hierarchical sampling method was carried out in each selected grove (2). Infected samples were collected from two nurseries, two budwood source fields, and six groves. Stems and leaf petioles from nursery trees and flower explants from the groves were collected and analyzed for CTV by direct tissue blot immunoassay (DTBIA) with the commercial kit from Plantprint (Valencia, Spain). Of 2,653 samples tested, 89 (4%) CTV-infected plants were detected. Five citrus varieties were found to be infected and Meyer lemon (Citrus limon ‘Meyer’) had the highest incidence at 16%. Numerous sweet orange varieties (Citrus sinensis L.) were found to be highly infected in the field, but only the Washington navel sweet orange was found to be infected in the nurseries. No clear CTV symptoms were observed during the survey. Samples that were positive for CTV by DTBIA were also positive by biological indexing on Mexican lime (C. aurantifolia) and immunocapture-reverse transcription-PCR as described by Nolasco et al. (3). Coat protein gene sequences obtained from five selected clones of a Syrian CTV isolate (GenBank Accession No. EU626555) showed more than 99 and 98% nucleotide sequence identity to a Jordanian CTV isolate (GenBank Accession No. AY550252) and the VT isolate (GenBank Accession No. U56902), respectively. Almost all infected samples induced moderate vein clearing symptoms when grafted to Mexican lime. Symptoms of vein clearing, leaf cupping, stunting, and stem pitting on Mexican lime were induced by graft transmission of CTV from one Valencia sample from the Tartous area. The viral inoculum is widely and randomly distributed in commercial groves, especially in the southern Tartous area and in some nurseries. To our knowledge, this is the first report of CTV in Syria. However, CTV was reported from the neighboring citrus-growing countries of Lebanon, Turkey, and Jordan (1), and the severe seedling yellows strain is present in this area, which poses a potential threat to Syrian citriculture. References: (1) G. H. Anfoka et al. Phytopathol. Mediterr. 44:17, 2005. (2) G. Hughes and T. R. Gottwald, Phytopathology 88:715, 1998. (3) G. Nolasco et al. Eur. J. Plant Pathol. 108:293, 2002.

scholarly journals Agronomic performance of Pera and related sweet orange accessions naturally infected with Citrus tristeza virus in northern Paraná State, Brazil

2014 ◽  
Vol 39 (6) ◽  
pp. 442-448 ◽  
Author(s):  
Viviane Y. Baba ◽  
José S. Giampani ◽  
Zuleide H. Tazima ◽  
Inês F. U. Yada ◽  
Luzia D. Paccola-Meirelles ◽  
...  
Keyword(s):  
Citrus Tristeza Virus ◽  
Sweet Orange ◽  
Agronomic Performance ◽  
Tristeza Virus ◽  
Citrus Tristeza

scholarly journals Citrus tristeza virus (CTV) Causing Proteomic and Enzymatic Changes in Sweet Orange Variety “Westin”

PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0130950 ◽  
Author(s):  
Milena Santos Dória ◽  
Aurizângela Oliveira de Sousa ◽  
Cristiane de Jesus Barbosa ◽  
Márcio Gilberto Cardoso Costa ◽  
Abelmon da Silva Gesteira ◽  
...  
Keyword(s):  
Citrus Tristeza Virus ◽  
Sweet Orange ◽  
Enzymatic Changes ◽  
Tristeza Virus ◽  
Citrus Tristeza
Sign in / Sign up

Export Citation Format

Share Document