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¿Es el MaizeBushyStunt Phytoplasma (MBS) un jugador secundario en el complejo de achaparramientodel maíz? Datos de la campaña 2023-2024 en Argentina
Alessio, Florencia Ivette; Bongiorno, Vanina Aylén; Brandimarte, Maria Soledad; Quiroga, María; Ferrer Lanfranchi, Mariana; Torrico Ramallo, Ada Karina; Conci, Luis Rogelio; Fernandez, Franco Daniel (Asociación Argentina de Fitopatólogos (AAF), 2024-09-18)Durante la campaña 2023-2024, el achaparramiento del maíz (AM) ha representado una emergencia a nivel nacional en Argentina, con pérdidas estimadas de entre el 10-15% de la cosecha. Históricamente, esta problemática se ... -
Evolution of SARS-CoV-2 during the first year of the COVID-19 pandemic in Northwestern Argentina
Zambrana Montaño, Romina Micaela; Culasso, Andrés Carlos Alberto; Fernandez, Franco Daniel; Marquez, Nathalie; Debat, Humberto Julio; Salmerón, Mariana; Zamora, Ana María; Ruíz de Huidobro, Gustavo; Costas, Dardo; Alabarse, Graciela; Charre, Miguel Alejandro; Fridman, Ariel David; Mamani, Claudia; Vaca, Fabiana; Maza Diaz, Claudia; Raskovsky, Viviana; Lavaque, Esteban; Lesser, Veronica; Cajal, Pamela; Agüero, Fernanda; Calvente, Cintia; Torres, Carolina; Viegas, Mariana (Elsevier, 2022-09-28)Studies about the evolution of SARS-CoV-2 lineages in different backgrounds such as naive populations are still scarce, especially from South America. This work aimed to study the introduction and diversification pattern ... -
First report of a 16SrIII-X phytoplasma associated with Lactuca sativa witches’-broom in Argentina
Fernandez, Franco Daniel; Carloni, Edgardo José; Alessio, Florencia Ivette; Bongiorno, Vanina Aylén; Conci, Luis Rogelio (Wiley, 2022)During the summer of 2022, symptoms of witches’-broom, flowering malformation and redness were observed in lettuce plants (Lactuca sativa) in fields in Cordoba Province, Argentina (Fig. 1a). In the same fields, garlic ... -
First report of a ‘Candidatus phytoplasma pyri’ strain in Argentina
Fernandez, Franco Daniel; Marini, Diana Beatriz; Farrando, Roberto Jes; Conci, Luis Rogelio (Springer, 2017-12)During the 2015 growing season, peach plants (Prunus persica) showing chlorotic, curling leaves and midrib thickening were detected in production fields in Mendoza province (Midwest region, Argentina). These symptoms ... -
First report of Maize striatemosaic virus, a mastrevirus infecting Zea mays in Argentina
Ruiz Posse, Agustina María; Fernandez, Franco Daniel; Reyna, Pablo Gastón; Nome Docampo, Claudia; Torrico Ramallo, Ada Karina; Gimenez Pecci, María De La Paz; Rodriguez Pardina, Patricia (Wiley, 2023-06-23)During 2021, sweet corn plants cultivated for human consumption in a 400-ha area in Santa Fe province, Argentina, showed severe virus-like symptoms, including marked dwarfism, plant deformation, nerval or internerval vein ... -
First report of Xanthomonas prunicola causing bacterial leaf streaks on wheat in Argentina
Martino, Julia Andrea; Fernandez, Franco Daniel; Pozzi, Elizabeth Alicia; Alberione, Enrique Javier; Bainotti, Carlos Tomas; Marquez, Nathalie; Tolocka, Patricia; Salines, Nicolas; Gomez, Dionisio Tomas; Donaire, Guillermo Manuel; Conci, Luis Rogelio; Alemandri, Vanina Maria (American Phytopathological Society, 2022-06-13)Since 2018, bacterial-like symptoms, such as leaf streaks were observed on wheat plants (Triticum aestivum L.) in Córdoba province in Argentina, with 1 to 5% of disease incidence. Samples of wheat stem and spike collected ... -
First report of ‘Candidatus Phytoplasma pyri’-related strain causing pear decline in Argentina
Fernandez, Franco Daniel; Conci, Luis Rogelio (Elsevier, 2019-07)Pear decline (PD) is an important disease affecting pear production worldwide and “Candidatus Phytoplasma pyri” (subgroup 16SrX-C) is the etiological agent of this disease. In Argentina, typical symptomatology of PD ... -
Genetic Diversity in Phytoplasmas from X-Disease Group Based in Analysis of idpA and imp Genes
Alessio, Florencia Ivette; Bongiorno, Vanina Aylén; Marcone, Carmine; Conci, Luis Rogelio; Fernandez, Franco Daniel (MDPI, 2025-05-21)Phytoplasmas of the X-disease group (16SrIII) are economically significant pathogens in South America, causing severe crop losses. Traditional classification based on the 16S rRNA gene has limitations in resolving closely ... -
Genetic diversity of 16SrIII group phytoplasmas in Argentina. Predominance of subgroups 16SrIII-J and B and two new subgroups 16SrIII-W and X
Galdeano, Ernestina; Guzman, Fabiana; Fernandez, Franco Daniel; Conci, Luis Rogelio (Springer, 2013-12)Twelve Argentinean 16SrIII (X-disease)-group phytoplasma strains were analyzed. Ten of them, detected in daisy (Bellis perennis), garlic (Allium sativum), ‘lagaña de perro’ (Caesalpinia gilliesii), periwinkle (Catharanthus ... -
Genome characterization of Enterococcus lactis strain isolated from bovine subclinical mastitis
Cerioli, María Florencia; Fernandez, Franco Daniel; Moliva, Melina Vanesa; Serral, Federico; Fernandez Do Porto, Darío; Reinoso, Elina B. (Elsevier, 2025-06-27)Environmental bacteria, such as streptococci and enterococci, play an important role in bovine mastitis. This study aims to characterize the genome sequence of Enterococcus spp. isolated from a case of subclinical mastitis. ... -
Genome sequencing of a Plum pox virus isolate infecting Prunus domestica cv D'Agen in Argentine using the ONT platform
Sastre Contreras, Maria Camila; Fernandez, Franco Daniel; Varela, Gonzalo Matías; Gutierrez, Franco Maximiliano; Dal Zotto, Angelica (International Society of Plant Pathology, 2025-06-30)Plum pox virus ( the causal agent of Sharka disease, affects Prunus fruit trees It was first detected in Argentina in San Juan (2006) and Mendoza (2007) provinces, mainly in Japanese plum, European plum, and apricot ... -
High precision characterization of RCCX rearrangements in a 21-hydroxylase deficiency Latin American cohort using oxford nanopore long read sequencing
Claps, Aldana; Fernández, Cecilia; Fernandez, Franco Daniel; Macchiaroli, Natalia; Ingravidi, Marina L.; Delea, Marisol; Fernández, Cecilia; Castro, Tania; Laiseca, Julieta; Kamenetzky, Laura; Taboas, Melisa; Dain, Liliana (Springer Nature, 2025-07-10)The CYP21A2 gene, mapped to the RCCX module in 6p21.3, is responsible for 21-hydroxylase deficiency (21-HD). In this work, we leveraged Oxford Nanopore Technology (ONT) Long Read sequencing (LRS) to analyze samples from ... -
Identification and molecular characterization of a phytoplasma associated with sunflower in Argentina
Guzmán, Fabiana; Giolitti, Fabian; Fernandez, Franco Daniel; Nome Docampo, Claudia; Lenardon, Sergio Luis; Conci, Luis Rogelio (Springer, 2014-04)Sunflower (Helianthus annuus L.) plants showing capitulum with virescence, phyllody and flower malformation, shortened internodes and abnormal branches were found in a field in Pedro Luro (Buenos Aires province, Argentina). ... -
Identification of three novel subgroups within the X-disease group phytoplasma associated with strawberry redness disease
Fernandez, Franco Daniel; Meneguzzi, Natalia; Conci, Luis Rogelio (2017-04)Strawberry plants showing symptoms of lethal redness disease were found in production fields located in Tucumán province, Argentina. The presence of phytoplasmas was confirmed by PCR of 16S rDNA gene using phytoplasma ... -
Identification, Sequencing and Genetic Diversity of Zucchini Tigre Mosaic Virus Infecting Cucurbita Species in Argentina
Brugo Carivali, María Florencia; Luciani, Cecilia Elizabeth; Celli, Marcos Giovani; Olmos, Sofía Eugenia; Obregon, Veronica Gabriela; Silva, Milagros Itatí; Fernandez, Franco Daniel; Cabrera Mederos, Dariel; Perotto, Maria Cecilia (Wiley, 2025-02)Cucurbit crops are constantly threatened by viral diseases. In Argentina, five potyviruses have been identified, including the recently discovered zucchini tigre mosaic virus (ZTMV). This study aimed to evaluate the molecular ... -
Improving the Comprehension of Pathogenicity and Phylogeny in ‘Candidatus Phytoplasma meliae’ through Genome Characterization
Fernandez, Franco Daniel; Xiao-Hua, Yan; Chih-Horng, Kuo; Marcone, Carmine; Conci, Luis Rogelio (MDPI, 2024-01-11)‘Candidatus Phytoplasma meliae’ is a pathogen associated with chinaberry yellowing disease, which has become a major phytosanitary problem for chinaberry forestry production in Argentina. Despite its economic impact, no ... -
Interfase producción frutal-Colonia Caroya: un camino hacia una fruticultura sustentable y de sanidad controlada.
Dal Zotto, Angelica; Cordes, Diego Darío; Grion, Adolfo; Pastor, Silvina Estela; Tolocka, Patricia; Fernandez, Franco Daniel; Taborda, Ricardo; Haelterman, Raquel Mercedes; Conci, Luis Rogelio (Ediciones INTA, 2018)Colonia Caroya, situada 50 km al Norte de la provincia de Córdoba, se caracteriza por la producción de cultivos intensivos: viñedos, frutales, hortícolas y oleaginosas. Estas producciones se llevan a cabo en fincas ... -
Molecular characterization of a phytoplasma of the ash yellows group occurring in strawberry (Fragaria x ananassa Duch.) plants in Argentina
Fernandez, Franco Daniel; Conci, Vilma Cecilia; Kirschbaum, Daniel Santiago; Conci, Luis Rogelio (2013-01)Strawberry (Fragaria x ananassa Duch. cv. Camino Real) plants showing phyllody symptoms were detected in production fields in Bella Vista (Corrientes province, Argentina). DNA from all symptomatic samples analyzed yielded ... -
Molecular characterization of effector protein SAP54 in Bellis virescence phytoplasma (16SrIII-J)
Fernandez, Franco Daniel; Debat, Humberto Julio; Conci, Luis Rogelio (Springer, 2019-06-03)Phytoplasmas are wall-less bacteria with a parasitic lifestyle responsible for numerous plant diseases worldwide. Since the introduction of next generation sequencing technologies, genome wide studies of these pathogens ... -
Molecular detection of Thecaphora frezzi in peanut (Arachis Hypogaea L.) seeds
Cazon, Luis Ignacio; Conforto, Erica Cinthia; Fernandez, Franco Daniel; Paredes, Juan Andrés; Rago, Alejandro Mario (2016)Thecaphora frezii is the causal agent of peanut smut, important disease in the Argentine production area. The pathogen can be dispersed by kernels, through surface contamination or small lesions. The aim of this work was ...