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Title First report of grapevine yellow speckle viroid-2 infecting grapevine (Vitis vinifera) in India.

Authors Singhal, P.; Kapoor, R.; Saritha, R. K.; Baranwal, V. K.

Author Affiliation Division of Plant Pathology, Indian Agricultural Research Institute, New Delhi 110 012, India.

Journal Plant Disease 2019 Vol 103 No. 1 pp. 166

ISSN 0191-2917


Abstract

In the past few years, virus and viroids have been found associated with grapevine in India, limiting the production and productivity as well as reducing the vine vigour. Three out of five viroids reported worldwide on grape have been recorded from vineyards in India, namely, Australian grapevine viroid, grapevine yellow speckle viroid-1, and hop stunt viroid, whereas there are no reports of citrus exocortis viroid and grapevine yellow speckle viroid-2 (GYSVd-2) infection from India. Leaf samples were collected from the three popular grape cultivars (Thompson Seedless, Sharad Seedless, and Flame Seedless) exhibiting yellowing, vein banding, yellow speckle, and downward curling symptoms in the glasshouse at the Indian Agricultural Research Institute New Delhi. Based on the results of polymerase chain reaction assay and BLAST analysis of the nucleotide sequences, the causal agent was identified as GYSVd-2. This virus was previously reported from Australia, China and Thailand and produces foliar yellow speckle symptoms. This is thought to be the first report of GYSVd-2 in India.
Publication type
Journal article

Publisher
American Phytopathological Society (APS Press)

Year of publication
2019

Location of publication
St. Paul

Country of publication
USA

Language of publication
English

Language of summary
English

Geographical location
Delhi
India


Record number
20193045854

Organism descriptor
Apscaviroid
Grapevine yellow speckle viroid 2
Pospiviroidae
viruses
Vitis
Vitis vinifera


Descriptor
cultivars
geographical distribution
grapes
new geographic records
nucleotide sequences
pathogens
plant diseases
plant pathogens
plant viruses
polymerase chain reaction
symptoms


Identifier
cultivated varieties
DNA sequences
New Delhi
PCR
phytopathogens
viruses of plants


Broad Term
Pospiviroidae
viroids
viruses
India
Commonwealth of Nations
Developing Countries
South Asia
Asia
Apscaviroid
Vitis
Vitaceae
Vitales
eudicots
angiosperms
Spermatophyta
plants
eukaryotes