First Report of Cotton Leafroll Dwarf Virus in Louisiana

Cotton leafroll dwarf virus (CLRDV) has recently been discovered in the southern United States. The virus is transmitted by the cotton aphid and causes numerous symptoms including foliar chlorosis, distortion, leaf cupping, and reddened leaf veins. These symptoms were observed in a field in northeast Louisiana during the summer of 2019 approximately 2 weeks after cotton aphid infestation. Grafting infected cotton plants with healthy ones resulted in similar symptom development, and molecular diagnosis initially indicated and then confirmed the presence of CLRDV in sampled and grafted specimens, respectively. This the first report of CLRDV in Louisiana.

Download Full-text

First Report of Cotton Leafroll Dwarf Virus in Cotton Plants Affected by Cotton Leafroll Dwarf Disease in North Carolina

Plant Disease ◽

10.1094/pdis-02-20-0335-pdn ◽

2020 ◽

Vol 104 (12) ◽

pp. 3275

Author(s):

Lindsey D. Thiessen ◽

Tyler Schappe ◽

Marcio Zaccaron ◽

Kassie Conner ◽

Jenny Koebernick ◽

...

Keyword(s):

North Carolina ◽

Dwarf Virus ◽

First Report ◽

Cotton Plants ◽

Dwarf Disease ◽

Cotton Leafroll Dwarf Virus

Download Full-text

First Report of Cotton Leafroll Dwarf Virus from Upland Cotton (Gossypium hirsutum) in Arkansas

Plant Disease ◽

10.1094/pdis-12-19-2610-pdn ◽

2020 ◽

Vol 104 (10) ◽

pp. 2742

Author(s):

Travis R. Faske ◽

Daisy Stainton ◽

Nina Aboughanem-Sabanadzovic ◽

Tom W. Allen

Keyword(s):

Gossypium Hirsutum ◽

Upland Cotton ◽

Dwarf Virus ◽

First Report ◽

Cotton Leafroll Dwarf Virus

Download Full-text

First report of Cotton leafroll dwarf virus in Thailand using a species-specific PCR validated with isolates from Brazil

Australasian Plant Disease Notes ◽

10.1007/s13314-015-0174-1 ◽

2015 ◽

Vol 10 (1) ◽

Cited By ~ 15

Author(s):

M. Sharman ◽

S. Lapbanjob ◽

P. Sebunruang ◽

J.-L. Belot ◽

R. Galbieri ◽

...

Keyword(s):

Dwarf Virus ◽

First Report ◽

Specific Pcr ◽

Species Specific ◽

Cotton Leafroll Dwarf Virus

Download Full-text

Identification of a New Cotton Disease Caused by an Atypical Cotton Leafroll Dwarf Virus in Argentina

Phytopathology ◽

10.1094/phyto-09-16-0349-r ◽

2017 ◽

Vol 107 (3) ◽

pp. 369-376 ◽

Cited By ~ 6

Author(s):

Yamila C. Agrofoglio ◽

Verónica C. Delfosse ◽

María F. Casse ◽

Horacio E. Hopp ◽

Iván Bonacic Kresic ◽

...

Keyword(s):

Aphis Gossypii ◽

Virus Genome ◽

Dwarf Virus ◽

Resistant Varieties ◽

Cotton Blue ◽

Cotton Plants ◽

Leafroll Disease ◽

Virus Genomes ◽

Cotton Blue Disease ◽

Cotton Leafroll Dwarf Virus

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 slight leaf rolling and a bushy phenotype in the upper part of the plant. In this study, we determined the complete nucleotide sequences of two independent virus genomes isolated from cotton blue disease (CBD)-resistant and -susceptible cotton varieties. This virus genome comprised 5,866 nucleotides with an organization similar to that of the genus Polerovirus and was closely related to cotton leafroll dwarf virus, with protein identity ranging from 88 to 98%. The virus was subsequently transmitted to a CBD-resistant cotton variety using Aphis gossypii and symptoms were successfully reproduced. To study the persistence of the virus, we analyzed symptomatic plants from CBD-resistant varieties from different cotton-growing fields between 2013 and 2015 and showed the presence of the same virus strain. In addition, a constructed full-length infectious cDNA clone from the virus caused disease symptoms in systemic leaves of CBD-resistant cotton plants. Altogether, the new leafroll disease in CBD-resistant cotton plants is caused by an atypical cotton leafroll dwarf virus.

Download Full-text