First detection of orchid fleck virus in orchids in Mexico.

Virusdisease

Departamento de Fitopatologia e Nematologia, ESALQ/USP, CP 9, Piracicaba, SP 13418-900 Brazil.

Published: March 2021

For the first time, an isolate of the dichorhavirus orchid fleck virus (OFV, family ) was found infecting an orchid plant in Mexico. The infected sample of was collected in a nursery in Lagunillas, municipality of Zihuateutla, Edo. Puebla. Mites gathered on this plant were analyzed by light and scanning electron microscopy, which consistently indicated the presence of adults of the species , the common vector of OFV Viral identification was based on symptoms, cytopathology, and reverse transcriptase-PCR/sequencing of genome fragments of the RNA1 and 2 molecules. Since isolates of OFV causing citrus leprosis have been previously detected in the Mexican states of Chiapas, Querétaro, and Jalisco, we promote a pertinent discussion and thought-provoking questions regarding the epidemiology and putative evolution of OFV.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8093337PMC
http://dx.doi.org/10.1007/s13337-021-00676-5DOI Listing

Publication Analysis

Top Keywords

orchid fleck
8
fleck virus
8
detection orchid
4
virus orchids
4
orchids mexico
4
mexico time
4
time isolate
4
isolate dichorhavirus
4
dichorhavirus orchid
4
ofv
4

Similar Publications

Transmission of plant viruses that replicate in the insect vector is known as persistent-propagative manner. However, it remains unclear whether such virus-vector relationships also occur between plant viruses and other biological vectors such as arthropod mites. In this study, we investigated the possible replication of orchid fleck virus (OFV), a segmented plant rhabdovirus, within its mite vector (Brevipalpus californicus s.

View Article and Find Full Text PDF

Lady Tankerville, a rare orchid species (Phaius tankervilleae (Banks ex L'Hér.) Blume) in Vietnam, not only enhances the aesthetic value of the surroundings with its enchanting blooms but also holds high economic value (Aver'janov & Averyanova, 2003). Investigating the necrosis symptom on the root system and declined Lady Tankerville in the market in Hai Duong province in Vietnam from 11/2020 to 12/2021, we discovered a substantial infestation (24/24 plants were infected) of a spiral nematode, Helicotylenchus sp.

View Article and Find Full Text PDF

Orchid fleck dichorhavirus movement protein shows RNA silencing suppressor activity.

J Gen Virol

November 2022

Instituto de Biología Molecular y Celular de Plantas, Universidad Politécnica de Valencia-Consejo Superior de Investigaciones Científicas (CSIC), Valencia 46022, Spain.

To counteract RNA interference-mediated antiviral defence, virus genomes evolved to express proteins that inhibit this plant defence mechanism. Using six independent biological approaches, we show that orchid fleck dichorhavirus citrus strain (OFV-citrus) movement protein (MP) may act as a viral suppressor of RNA silencing (VSR). By using the alfalfa mosaic virus (AMV) RNA 3 expression vector, it was observed that the MP triggered necrosis response in transgenic tobacco leaves and increased the viral RNA (vRNA) accumulation.

View Article and Find Full Text PDF

Genome characterization and complete sequence of a new badnavirus from Pandanus amaryllifolius.

Arch Virol

August 2022

USDA-ARS Horticultural Crops Disease and Pest Management Research Unit, Corvallis, OR, 97330, USA.

A new badnavirus was sequenced from fragrant pandan grass (Pandanus amaryllifolius) displaying mosaic and chlorosis on the leaves. The complete genome sequence was determined by high-throughput sequencing. The new badnavirus was tentatively named "pandanus mosaic associated virus" (PMaV).

View Article and Find Full Text PDF

Smilax auriculata: A new host for Orchid fleck dichorhavirus identified in Florida, USA.

Plant Dis

December 2021

USDA Agricultural Research Service, 17123, Molecular Plant Pathology Laboratory, Building 004, Room 117, BARC-West, 10300 Baltimore Avenue, Washington, District of Columbia, United States, 20250;

In June 2020, Orchid fleck virus (OFV) was detected in a species of Liriope in Leon and Alachua County, Florida (Fife et al; 2021). In October of the same year, four adjacent dune/ear-leaf greenbrier vines, Smilax auriculata (Smilaceae: Liliales), showed yellowing and mottling symptoms (Figure 1). Infected and healthy S.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!