Publications by authors named "Guillermo Leon M"

Article Synopsis
  • Hibiscus plants are native to Southeast Asia but thrive in Colombia's arid environments, although the study of viruses affecting these plants in Colombia remains limited, with four known viruses already identified.
  • Recent research revealed various mixed virus infections in a single hibiscus plant, including known and novel virus strains.
  • A survey collected hibiscus leaf samples showing symptoms of viral infection across multiple Colombian regions, which were subsequently tested for infections using specific PCR assays to detect known and newly identified viruses.
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Citrus leprosis (CiL) is one of the destructive emerging viral diseases of citrus in the Americas. Leprosis syndrome is associated with two taxonomically distinct groups of -transmitted viruses (BTVs), that consist of positive-sense , , and negative-sense . The localized CiL symptoms observed in multiple citrus species and other alternate hosts indicates that these viruses might have originated from the mites and eventually adopted citrus as a secondary host.

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Passiflora edulis, commonly known as passion fruit, is a vine species of passionflower native to South America. In Colombia, yellow passion fruit (P. edulis f.

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Citrus leprosis virus C (CiLV-C), a causal agent for citrus leprosis disease, is present in South and Central America and is a threat for introduction into the U.S. citrus industry.

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Citrus leprosis in Colombia was previously shown to be caused by cytoplasmic Citrus leprosis virus (CiLV-C). In 2011, enzyme-linked immunosorbent assay and reverse-transcription polymerase chain reaction (RT-PCR)-based diagnostic methods failed to identify CiLV-C from citrus samples with symptoms similar to citrus leprosis; however, virions similar to CiLV-C were observed in the cytoplasm of the symptomatic leaves by transmission electron microscopy. Furthermore, the causal organism was transmitted by the false spider mite, Brevipalpus phoenicis, to healthy citrus seedlings.

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