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Agroinoculation of a full-length cDNA clone of cotton leafroll dwarf virus (CLRDV) results in systemic infection in cotton and the model plant Nicotiana benthamiana
Delfosse, Veronica Cecilia; Casse, Maria Florencia; Agrofoglio, Yamila Carla; Bonacic Kresic, Iván; Hopp, Horacio Esteban; Ziegler-Graff, Véronique; Distefano, Ana Julia (2013-07)Cotton blue disease is the most important viral disease of cotton in the southern part of South America. Its etiological agent, cotton leafroll dwarf virus (CLRDV), is specifically transmitted to host plants by the aphid ... -
Argentinian potato leafroll virus P0 protein : Novel activities for a previously known suppressor
Barrios Baron, Maria Pilar; Delfosse, Veronica Cecilia; Agrofoglio, Yamila Carla; Nahirñak, Vanesa; Almasia, Natalia Ines; Vazquez Rovere, Cecilia; Distefano, Ana Julia (Wiley, 2021-02)The potato leafroll virus (PLRV) P0 protein (P0PL) is a suppressor of RNA silencing. In this study, we showed that P0 protein from an Argentinian isolate of PLRV (P0PL‐Ar) has an additional activity not described for other ... -
Assessing the hidden diversity underlying consensus sequences of SARS-CoV-2 using VICOS, a novel bioinformatic pipeline for identification of mixed viral populations
Goya, Stephanie; Sosa, Ezequiel Jorge; Nabaes Jodar, Mercedes Soledad; Torres, Carolina; Konig, Guido Alberto; Acuña, Dolores; Ceballos, Santiago; Distefano, Ana Julia; Dopazo, Hernán; Dus Santos, Maria Jose; Fass, Monica Irinia; Fernandez Do Porto, Darío Augusto; Fernandez, Ailen; Gallego, Fernando; Gismondi, Maria Ines; Gramundi, Ivan; Lusso, Silvina; Marti, Marcelo Adrián; Mazzeo, Melina; Mistchenko, Alicia Susana; Muñoz Hidalgo, Marianne Graziel; Natale, Mónica; Nardi, Cristina; Ousset, Julia; Peralta, Andrea Veronica; Pintos, Carolina; Puebla, Andrea Fabiana; Pianciola, Luis; Rivarola, Maximo Lisandro; Turjanski, Adrián; Valinotto, Laura; Vera, Pablo Alfredo; Zaiat, Jonathan; Zubrycki, Jeremias Enrique; Aulicino, Paula; Viegas, Mariana (Elsevier, 2023-02)Introduction: Coinfection with two SARS-CoV-2 viruses is still a very understudied phenomenon. Although next generation sequencing methods are very sensitive to detect heterogeneous viral populations in a sample, there is ... -
Coinfection of cotton plants with cotton leafroll dwarf virus atypical and a novel cotton begomovirus
Delfosse, Veronica Cecilia; Debat, Humberto Julio; Zavallo, Diego; Alvarez, Liliana; Gomez Talquenca, Gonzalo; Bonacic Kresic, Iván; Asurmendi, Sebastian; Distefano, Ana Julia (Wiley, 2024-05)Cotton is a commercial crop of global importance whose versatile fibre is widely used in the textile industry. Cotton is vulnerable to infectious pathogens, including viruses, that are a major threat to cotton production. ... -
Estudio del uso potencial de un clon infectivo del Cotton leafroll dwarf virus (CLRDV) como método alternativo al sistema tradicional de infección con áfidos para la transmisión de la enfermedad azul del algodonero
Casse, Maria Florencia (Facultad de Ciencias Agrarias, Universidad Nacional del Nordeste, 2017)La enfermedad de origen viral más importante en el cultivo de algodón en Sudamérica es la enfermedad azul, y es producida por el Cotton leafroll dwarf virus (CLRDV). El CLRDV es transmitido por el pulgón del algodón Aphis ... -
Functional and biochemical properties of Mal de Río Cuarto virus (Fijivirus, Reoviridae) P9-1 viroplasm protein show further similarities to animal reovirus counterparts
Maroniche, Guillermo Andrés; Mongelli, Vanesa Claudia; Peralta, Andrea Veronica; Distefano, Ana Julia; Llauger, Gabriela; Taboga, Oscar Alberto; Hopp, Horacio Esteban; Del Vas, Mariana (Elsevier, 2010-09)Mal de Río Cuarto virus (MRCV) is a plant virus of the genus Fijivirus within the family Reoviridae that infects several monocotyledonous species and is transmitted by planthoppers in a persistent and propagative manner. ... -
Identification of a new cotton disease caused by an atypical cotton leafroll dwarf virus in Argentina
Agrofoglio, Yamila Carla; Delfosse, Veronica Cecilia; Casse, Maria Florencia; Hopp, Horacio Esteban; Bonacic Kresic, Iván; Distefano, Ana Julia (2017)An outbreak of a new disease occurred in cotton (Gossypium hirsutum) fields in northwest Argentina starting in the 2009–10 growing season and is still spreading steadily. The characteristic symptoms of the disease included ... -
Mal de Río Cuarto virus (MRCV) genomic segment S3 codes for the major core capsid protein
Distefano, Ana Julia; Maldonado, Sara Beatriz; Hopp, Horacio Esteban; Del Vas, Mariana (Springer, 2009-06)Mal de Río Cuarto virus (MRCV) is a newly described species of the genus Fijivirus, family Reoviridae. Compared with other plant-infecting genus of the family, the function and localization of MRCV and other Fijivirus ... -
P0 protein of cotton leafroll dwarf virus-atypical isolate is a weak RNA silencing suppressor and the avirulence determinant that breaks the cotton Cbd gene-based resistance
Agrofoglio, Yamila Carla; Delfosse, Veronica Cecilia; Casse, Maria Florencia; Hopp, Horacio Esteban; Bonacic Kresic, Iván; Ziegler-Graff, Véronique; Distefano, Ana Julia (Wiley, 2019-08)Cotton blue disease (CBD) is the most important disease present in cotton crops in South America and cotton leafroll dwarf virus (CLRDV) is the causal agent. The disease has been controlled by sowing cotton varieties ... -
Population genetics structure of glyphosate‐resistant Johnsongrass (Sorghum halepense L. Pers) does not support a single origin of the resistance
Fernandez, Luis German; De Haro, Luis Alejandro; Distefano, Ana Julia; Martinez, Maria Carolina; Lia, Veronica Viviana; Papa, Juan Carlos; Olea, Ignacio; Tosto, Daniela Sandra; Hopp, Horacio Esteban (Wiley, 2013-09)Single sequence repeats (SSR) developed for Sorghum bicolor were used to characterize the genetic distance of 46 different Sorghum halepense (Johnsongrass) accessions from Argentina some of which have evolved toward ... -
Primer Informe del Virus de la Papa Y en Calibrachoa Ornamental en Argentina
Tombion, Leticia; Alderete, Marisol; Perez De La Torre, Mariana; Agrofoglio, Yamila Carla; Delfosse, Veronica Cecilia; Distefano, Ana Julia; Soto, Maria Silvina (2019-04-24)The identification of the calibrachoa-infecting PVY strain is vital for resistant-cultivar selection, and therefore it should be addressed in future studies. To our knowledge, this is the first report of PVY as a pathogen ... -
Sequence analysis of genome segments S5 and S10 of Mal de Río Cuarto virus (Fijivirus, Reoviridae)
Distefano, Ana Julia; Hopp, Horacio Esteban; Del Vas, Mariana (Springer, 2005-06)Mal de Río Cuarto virus (MRCV) was recently described as a new species of the genus Fijivirus, family Reoviridae. The nucleotide sequence of two MRCV genome segments was determined. MRCV S5 and S10 were predicted to encode ... -
The P0 protein encoded by cotton leafroll dwarf virus (CLRDV) inhibits local but not systemic RNA silencing
Delfosse, Veronica Cecilia; Agrofoglio, Yamila Carla; Casse, Maria Florencia; Bonacic Kresic, Iván; Hopp, Horacio Esteban; Ziegler-Graff, Véronique; Distefano, Ana Julia (2014-02)Plants employ RNA silencing as a natural defense mechanism against viruses. As a counter-defense, viruses encode silencing suppressor proteins (SSPs) that suppress RNA silencing. Most, but not all, the P0 proteins encoded ... -
Virus infection elevates transcriptional activity of miR164a promoter in plants
Bazzini, Ariel Alejandro; Almasia, Natalia Ines; Manacorda, Carlos Augusto; Mongelli, Vanesa Claudia; Conti, Gabriela; Maroniche, Guillermo Andrés; Rodriguez, Maria Cecilia; Distefano, Ana Julia; Hopp, Horacio Esteban; Del Vas, Mariana; Asurmendi, Sebastian (BioMed Central, 2009-12)Background: Micro RNAs (miRs) constitute a large group of endogenous small RNAs that have crucial roles in many important plant functions. Virus infection and transgenic expression of viral proteins alter accumulation and ... -
What we know about poleroviruses : Advances in understanding the functions of polerovirus proteins
Delfosse, Veronica Cecilia; Barrios Baron, Maria Pilar; Distefano, Ana Julia (Wiley, 2021-06)Poleroviruses are economically important plant viruses that infect cereal, vegetable, and fruit crops, and cause serious yield and quality losses worldwide. In this review we summarize the current knowledge of the function ...